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| e7c126 | 1 | // CodeMirror, copyright (c) by Marijn Haverbeke and others |
| H | 2 | // Distributed under an MIT license: https://codemirror.net/LICENSE |
| 3 | ||
| 4 | // This is CodeMirror (https://codemirror.net), a code editor | |
| 5 | // implemented in JavaScript on top of the browser's DOM. | |
| 6 | // | |
| 7 | // You can find some technical background for some of the code below | |
| 8 | // at http://marijnhaverbeke.nl/blog/#cm-internals . | |
| 9 | ||
| 10 | (function (global, factory) { | |
| 11 | typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() : | |
| 12 | typeof define === 'function' && define.amd ? define(factory) : | |
| 13 | (global.CodeMirror = factory()); | |
| 14 | }(this, (function () { 'use strict'; | |
| 15 | ||
| 16 | // Kludges for bugs and behavior differences that can't be feature | |
| 17 | // detected are enabled based on userAgent etc sniffing. | |
| 18 | var userAgent = navigator.userAgent; | |
| 19 | var platform = navigator.platform; | |
| 20 | ||
| 21 | var gecko = /gecko\/\d/i.test(userAgent); | |
| 22 | var ie_upto10 = /MSIE \d/.test(userAgent); | |
| 23 | var ie_11up = /Trident\/(?:[7-9]|\d{2,})\..*rv:(\d+)/.exec(userAgent); | |
| 24 | var edge = /Edge\/(\d+)/.exec(userAgent); | |
| 25 | var ie = ie_upto10 || ie_11up || edge; | |
| 26 | var ie_version = ie && (ie_upto10 ? document.documentMode || 6 : +(edge || ie_11up)[1]); | |
| 27 | var webkit = !edge && /WebKit\//.test(userAgent); | |
| 28 | var qtwebkit = webkit && /Qt\/\d+\.\d+/.test(userAgent); | |
| 29 | var chrome = !edge && /Chrome\//.test(userAgent); | |
| 30 | var presto = /Opera\//.test(userAgent); | |
| 31 | var safari = /Apple Computer/.test(navigator.vendor); | |
| 32 | var mac_geMountainLion = /Mac OS X 1\d\D([8-9]|\d\d)\D/.test(userAgent); | |
| 33 | var phantom = /PhantomJS/.test(userAgent); | |
| 34 | ||
| 35 | var ios = !edge && /AppleWebKit/.test(userAgent) && /Mobile\/\w+/.test(userAgent); | |
| 36 | var android = /Android/.test(userAgent); | |
| 37 | // This is woefully incomplete. Suggestions for alternative methods welcome. | |
| 38 | var mobile = ios || android || /webOS|BlackBerry|Opera Mini|Opera Mobi|IEMobile/i.test(userAgent); | |
| 39 | var mac = ios || /Mac/.test(platform); | |
| 40 | var chromeOS = /\bCrOS\b/.test(userAgent); | |
| 41 | var windows = /win/i.test(platform); | |
| 42 | ||
| 43 | var presto_version = presto && userAgent.match(/Version\/(\d*\.\d*)/); | |
| 44 | if (presto_version) { presto_version = Number(presto_version[1]); } | |
| 45 | if (presto_version && presto_version >= 15) { presto = false; webkit = true; } | |
| 46 | // Some browsers use the wrong event properties to signal cmd/ctrl on OS X | |
| 47 | var flipCtrlCmd = mac && (qtwebkit || presto && (presto_version == null || presto_version < 12.11)); | |
| 48 | var captureRightClick = gecko || (ie && ie_version >= 9); | |
| 49 | ||
| 50 | function classTest(cls) { return new RegExp("(^|\\s)" + cls + "(?:$|\\s)\\s*") } | |
| 51 | ||
| 52 | var rmClass = function(node, cls) { | |
| 53 | var current = node.className; | |
| 54 | var match = classTest(cls).exec(current); | |
| 55 | if (match) { | |
| 56 | var after = current.slice(match.index + match[0].length); | |
| 57 | node.className = current.slice(0, match.index) + (after ? match[1] + after : ""); | |
| 58 | } | |
| 59 | }; | |
| 60 | ||
| 61 | function removeChildren(e) { | |
| 62 | for (var count = e.childNodes.length; count > 0; --count) | |
| 63 | { e.removeChild(e.firstChild); } | |
| 64 | return e | |
| 65 | } | |
| 66 | ||
| 67 | function removeChildrenAndAdd(parent, e) { | |
| 68 | return removeChildren(parent).appendChild(e) | |
| 69 | } | |
| 70 | ||
| 71 | function elt(tag, content, className, style) { | |
| 72 | var e = document.createElement(tag); | |
| 73 | if (className) { e.className = className; } | |
| 74 | if (style) { e.style.cssText = style; } | |
| 75 | if (typeof content == "string") { e.appendChild(document.createTextNode(content)); } | |
| 76 | else if (content) { for (var i = 0; i < content.length; ++i) { e.appendChild(content[i]); } } | |
| 77 | return e | |
| 78 | } | |
| 79 | // wrapper for elt, which removes the elt from the accessibility tree | |
| 80 | function eltP(tag, content, className, style) { | |
| 81 | var e = elt(tag, content, className, style); | |
| 82 | e.setAttribute("role", "presentation"); | |
| 83 | return e | |
| 84 | } | |
| 85 | ||
| 86 | var range; | |
| 87 | if (document.createRange) { range = function(node, start, end, endNode) { | |
| 88 | var r = document.createRange(); | |
| 89 | r.setEnd(endNode || node, end); | |
| 90 | r.setStart(node, start); | |
| 91 | return r | |
| 92 | }; } | |
| 93 | else { range = function(node, start, end) { | |
| 94 | var r = document.body.createTextRange(); | |
| 95 | try { r.moveToElementText(node.parentNode); } | |
| 96 | catch(e) { return r } | |
| 97 | r.collapse(true); | |
| 98 | r.moveEnd("character", end); | |
| 99 | r.moveStart("character", start); | |
| 100 | return r | |
| 101 | }; } | |
| 102 | ||
| 103 | function contains(parent, child) { | |
| 104 | if (child.nodeType == 3) // Android browser always returns false when child is a textnode | |
| 105 | { child = child.parentNode; } | |
| 106 | if (parent.contains) | |
| 107 | { return parent.contains(child) } | |
| 108 | do { | |
| 109 | if (child.nodeType == 11) { child = child.host; } | |
| 110 | if (child == parent) { return true } | |
| 111 | } while (child = child.parentNode) | |
| 112 | } | |
| 113 | ||
| 114 | function activeElt() { | |
| 115 | // IE and Edge may throw an "Unspecified Error" when accessing document.activeElement. | |
| 116 | // IE < 10 will throw when accessed while the page is loading or in an iframe. | |
| 117 | // IE > 9 and Edge will throw when accessed in an iframe if document.body is unavailable. | |
| 118 | var activeElement; | |
| 119 | try { | |
| 120 | activeElement = document.activeElement; | |
| 121 | } catch(e) { | |
| 122 | activeElement = document.body || null; | |
| 123 | } | |
| 124 | while (activeElement && activeElement.shadowRoot && activeElement.shadowRoot.activeElement) | |
| 125 | { activeElement = activeElement.shadowRoot.activeElement; } | |
| 126 | return activeElement | |
| 127 | } | |
| 128 | ||
| 129 | function addClass(node, cls) { | |
| 130 | var current = node.className; | |
| 131 | if (!classTest(cls).test(current)) { node.className += (current ? " " : "") + cls; } | |
| 132 | } | |
| 133 | function joinClasses(a, b) { | |
| 134 | var as = a.split(" "); | |
| 135 | for (var i = 0; i < as.length; i++) | |
| 136 | { if (as[i] && !classTest(as[i]).test(b)) { b += " " + as[i]; } } | |
| 137 | return b | |
| 138 | } | |
| 139 | ||
| 140 | var selectInput = function(node) { node.select(); }; | |
| 141 | if (ios) // Mobile Safari apparently has a bug where select() is broken. | |
| 142 | { selectInput = function(node) { node.selectionStart = 0; node.selectionEnd = node.value.length; }; } | |
| 143 | else if (ie) // Suppress mysterious IE10 errors | |
| 144 | { selectInput = function(node) { try { node.select(); } catch(_e) {} }; } | |
| 145 | ||
| 146 | function bind(f) { | |
| 147 | var args = Array.prototype.slice.call(arguments, 1); | |
| 148 | return function(){return f.apply(null, args)} | |
| 149 | } | |
| 150 | ||
| 151 | function copyObj(obj, target, overwrite) { | |
| 152 | if (!target) { target = {}; } | |
| 153 | for (var prop in obj) | |
| 154 | { if (obj.hasOwnProperty(prop) && (overwrite !== false || !target.hasOwnProperty(prop))) | |
| 155 | { target[prop] = obj[prop]; } } | |
| 156 | return target | |
| 157 | } | |
| 158 | ||
| 159 | // Counts the column offset in a string, taking tabs into account. | |
| 160 | // Used mostly to find indentation. | |
| 161 | function countColumn(string, end, tabSize, startIndex, startValue) { | |
| 162 | if (end == null) { | |
| 163 | end = string.search(/[^\s\u00a0]/); | |
| 164 | if (end == -1) { end = string.length; } | |
| 165 | } | |
| 166 | for (var i = startIndex || 0, n = startValue || 0;;) { | |
| 167 | var nextTab = string.indexOf("\t", i); | |
| 168 | if (nextTab < 0 || nextTab >= end) | |
| 169 | { return n + (end - i) } | |
| 170 | n += nextTab - i; | |
| 171 | n += tabSize - (n % tabSize); | |
| 172 | i = nextTab + 1; | |
| 173 | } | |
| 174 | } | |
| 175 | ||
| 176 | var Delayed = function() {this.id = null;}; | |
| 177 | Delayed.prototype.set = function (ms, f) { | |
| 178 | clearTimeout(this.id); | |
| 179 | this.id = setTimeout(f, ms); | |
| 180 | }; | |
| 181 | ||
| 182 | function indexOf(array, elt) { | |
| 183 | for (var i = 0; i < array.length; ++i) | |
| 184 | { if (array[i] == elt) { return i } } | |
| 185 | return -1 | |
| 186 | } | |
| 187 | ||
| 188 | // Number of pixels added to scroller and sizer to hide scrollbar | |
| 189 | var scrollerGap = 30; | |
| 190 | ||
| 191 | // Returned or thrown by various protocols to signal 'I'm not | |
| 192 | // handling this'. | |
| 193 | var Pass = {toString: function(){return "CodeMirror.Pass"}}; | |
| 194 | ||
| 195 | // Reused option objects for setSelection & friends | |
| 196 | var sel_dontScroll = {scroll: false}, sel_mouse = {origin: "*mouse"}, sel_move = {origin: "+move"}; | |
| 197 | ||
| 198 | // The inverse of countColumn -- find the offset that corresponds to | |
| 199 | // a particular column. | |
| 200 | function findColumn(string, goal, tabSize) { | |
| 201 | for (var pos = 0, col = 0;;) { | |
| 202 | var nextTab = string.indexOf("\t", pos); | |
| 203 | if (nextTab == -1) { nextTab = string.length; } | |
| 204 | var skipped = nextTab - pos; | |
| 205 | if (nextTab == string.length || col + skipped >= goal) | |
| 206 | { return pos + Math.min(skipped, goal - col) } | |
| 207 | col += nextTab - pos; | |
| 208 | col += tabSize - (col % tabSize); | |
| 209 | pos = nextTab + 1; | |
| 210 | if (col >= goal) { return pos } | |
| 211 | } | |
| 212 | } | |
| 213 | ||
| 214 | var spaceStrs = [""]; | |
| 215 | function spaceStr(n) { | |
| 216 | while (spaceStrs.length <= n) | |
| 217 | { spaceStrs.push(lst(spaceStrs) + " "); } | |
| 218 | return spaceStrs[n] | |
| 219 | } | |
| 220 | ||
| 221 | function lst(arr) { return arr[arr.length-1] } | |
| 222 | ||
| 223 | function map(array, f) { | |
| 224 | var out = []; | |
| 225 | for (var i = 0; i < array.length; i++) { out[i] = f(array[i], i); } | |
| 226 | return out | |
| 227 | } | |
| 228 | ||
| 229 | function insertSorted(array, value, score) { | |
| 230 | var pos = 0, priority = score(value); | |
| 231 | while (pos < array.length && score(array[pos]) <= priority) { pos++; } | |
| 232 | array.splice(pos, 0, value); | |
| 233 | } | |
| 234 | ||
| 235 | function nothing() {} | |
| 236 | ||
| 237 | function createObj(base, props) { | |
| 238 | var inst; | |
| 239 | if (Object.create) { | |
| 240 | inst = Object.create(base); | |
| 241 | } else { | |
| 242 | nothing.prototype = base; | |
| 243 | inst = new nothing(); | |
| 244 | } | |
| 245 | if (props) { copyObj(props, inst); } | |
| 246 | return inst | |
| 247 | } | |
| 248 | ||
| 249 | var nonASCIISingleCaseWordChar = /[\u00df\u0587\u0590-\u05f4\u0600-\u06ff\u3040-\u309f\u30a0-\u30ff\u3400-\u4db5\u4e00-\u9fcc\uac00-\ud7af]/; | |
| 250 | function isWordCharBasic(ch) { | |
| 251 | return /\w/.test(ch) || ch > "\x80" && | |
| 252 | (ch.toUpperCase() != ch.toLowerCase() || nonASCIISingleCaseWordChar.test(ch)) | |
| 253 | } | |
| 254 | function isWordChar(ch, helper) { | |
| 255 | if (!helper) { return isWordCharBasic(ch) } | |
| 256 | if (helper.source.indexOf("\\w") > -1 && isWordCharBasic(ch)) { return true } | |
| 257 | return helper.test(ch) | |
| 258 | } | |
| 259 | ||
| 260 | function isEmpty(obj) { | |
| 261 | for (var n in obj) { if (obj.hasOwnProperty(n) && obj[n]) { return false } } | |
| 262 | return true | |
| 263 | } | |
| 264 | ||
| 265 | // Extending unicode characters. A series of a non-extending char + | |
| 266 | // any number of extending chars is treated as a single unit as far | |
| 267 | // as editing and measuring is concerned. This is not fully correct, | |
| 268 | // since some scripts/fonts/browsers also treat other configurations | |
| 269 | // of code points as a group. | |
| 270 | var extendingChars = /[\u0300-\u036f\u0483-\u0489\u0591-\u05bd\u05bf\u05c1\u05c2\u05c4\u05c5\u05c7\u0610-\u061a\u064b-\u065e\u0670\u06d6-\u06dc\u06de-\u06e4\u06e7\u06e8\u06ea-\u06ed\u0711\u0730-\u074a\u07a6-\u07b0\u07eb-\u07f3\u0816-\u0819\u081b-\u0823\u0825-\u0827\u0829-\u082d\u0900-\u0902\u093c\u0941-\u0948\u094d\u0951-\u0955\u0962\u0963\u0981\u09bc\u09be\u09c1-\u09c4\u09cd\u09d7\u09e2\u09e3\u0a01\u0a02\u0a3c\u0a41\u0a42\u0a47\u0a48\u0a4b-\u0a4d\u0a51\u0a70\u0a71\u0a75\u0a81\u0a82\u0abc\u0ac1-\u0ac5\u0ac7\u0ac8\u0acd\u0ae2\u0ae3\u0b01\u0b3c\u0b3e\u0b3f\u0b41-\u0b44\u0b4d\u0b56\u0b57\u0b62\u0b63\u0b82\u0bbe\u0bc0\u0bcd\u0bd7\u0c3e-\u0c40\u0c46-\u0c48\u0c4a-\u0c4d\u0c55\u0c56\u0c62\u0c63\u0cbc\u0cbf\u0cc2\u0cc6\u0ccc\u0ccd\u0cd5\u0cd6\u0ce2\u0ce3\u0d3e\u0d41-\u0d44\u0d4d\u0d57\u0d62\u0d63\u0dca\u0dcf\u0dd2-\u0dd4\u0dd6\u0ddf\u0e31\u0e34-\u0e3a\u0e47-\u0e4e\u0eb1\u0eb4-\u0eb9\u0ebb\u0ebc\u0ec8-\u0ecd\u0f18\u0f19\u0f35\u0f37\u0f39\u0f71-\u0f7e\u0f80-\u0f84\u0f86\u0f87\u0f90-\u0f97\u0f99-\u0fbc\u0fc6\u102d-\u1030\u1032-\u1037\u1039\u103a\u103d\u103e\u1058\u1059\u105e-\u1060\u1071-\u1074\u1082\u1085\u1086\u108d\u109d\u135f\u1712-\u1714\u1732-\u1734\u1752\u1753\u1772\u1773\u17b7-\u17bd\u17c6\u17c9-\u17d3\u17dd\u180b-\u180d\u18a9\u1920-\u1922\u1927\u1928\u1932\u1939-\u193b\u1a17\u1a18\u1a56\u1a58-\u1a5e\u1a60\u1a62\u1a65-\u1a6c\u1a73-\u1a7c\u1a7f\u1b00-\u1b03\u1b34\u1b36-\u1b3a\u1b3c\u1b42\u1b6b-\u1b73\u1b80\u1b81\u1ba2-\u1ba5\u1ba8\u1ba9\u1c2c-\u1c33\u1c36\u1c37\u1cd0-\u1cd2\u1cd4-\u1ce0\u1ce2-\u1ce8\u1ced\u1dc0-\u1de6\u1dfd-\u1dff\u200c\u200d\u20d0-\u20f0\u2cef-\u2cf1\u2de0-\u2dff\u302a-\u302f\u3099\u309a\ua66f-\ua672\ua67c\ua67d\ua6f0\ua6f1\ua802\ua806\ua80b\ua825\ua826\ua8c4\ua8e0-\ua8f1\ua926-\ua92d\ua947-\ua951\ua980-\ua982\ua9b3\ua9b6-\ua9b9\ua9bc\uaa29-\uaa2e\uaa31\uaa32\uaa35\uaa36\uaa43\uaa4c\uaab0\uaab2-\uaab4\uaab7\uaab8\uaabe\uaabf\uaac1\uabe5\uabe8\uabed\udc00-\udfff\ufb1e\ufe00-\ufe0f\ufe20-\ufe26\uff9e\uff9f]/; | |
| 271 | function isExtendingChar(ch) { return ch.charCodeAt(0) >= 768 && extendingChars.test(ch) } | |
| 272 | ||
| 273 | // Returns a number from the range [`0`; `str.length`] unless `pos` is outside that range. | |
| 274 | function skipExtendingChars(str, pos, dir) { | |
| 275 | while ((dir < 0 ? pos > 0 : pos < str.length) && isExtendingChar(str.charAt(pos))) { pos += dir; } | |
| 276 | return pos | |
| 277 | } | |
| 278 | ||
| 279 | // Returns the value from the range [`from`; `to`] that satisfies | |
| 280 | // `pred` and is closest to `from`. Assumes that at least `to` | |
| 281 | // satisfies `pred`. Supports `from` being greater than `to`. | |
| 282 | function findFirst(pred, from, to) { | |
| 283 | // At any point we are certain `to` satisfies `pred`, don't know | |
| 284 | // whether `from` does. | |
| 285 | var dir = from > to ? -1 : 1; | |
| 286 | for (;;) { | |
| 287 | if (from == to) { return from } | |
| 288 | var midF = (from + to) / 2, mid = dir < 0 ? Math.ceil(midF) : Math.floor(midF); | |
| 289 | if (mid == from) { return pred(mid) ? from : to } | |
| 290 | if (pred(mid)) { to = mid; } | |
| 291 | else { from = mid + dir; } | |
| 292 | } | |
| 293 | } | |
| 294 | ||
| 295 | // The display handles the DOM integration, both for input reading | |
| 296 | // and content drawing. It holds references to DOM nodes and | |
| 297 | // display-related state. | |
| 298 | ||
| 299 | function Display(place, doc, input) { | |
| 300 | var d = this; | |
| 301 | this.input = input; | |
| 302 | ||
| 303 | // Covers bottom-right square when both scrollbars are present. | |
| 304 | d.scrollbarFiller = elt("div", null, "CodeMirror-scrollbar-filler"); | |
| 305 | d.scrollbarFiller.setAttribute("cm-not-content", "true"); | |
| 306 | // Covers bottom of gutter when coverGutterNextToScrollbar is on | |
| 307 | // and h scrollbar is present. | |
| 308 | d.gutterFiller = elt("div", null, "CodeMirror-gutter-filler"); | |
| 309 | d.gutterFiller.setAttribute("cm-not-content", "true"); | |
| 310 | // Will contain the actual code, positioned to cover the viewport. | |
| 311 | d.lineDiv = eltP("div", null, "CodeMirror-code"); | |
| 312 | // Elements are added to these to represent selection and cursors. | |
| 313 | d.selectionDiv = elt("div", null, null, "position: relative; z-index: 1"); | |
| 314 | d.cursorDiv = elt("div", null, "CodeMirror-cursors"); | |
| 315 | // A visibility: hidden element used to find the size of things. | |
| 316 | d.measure = elt("div", null, "CodeMirror-measure"); | |
| 317 | // When lines outside of the viewport are measured, they are drawn in this. | |
| 318 | d.lineMeasure = elt("div", null, "CodeMirror-measure"); | |
| 319 | // Wraps everything that needs to exist inside the vertically-padded coordinate system | |
| 320 | d.lineSpace = eltP("div", [d.measure, d.lineMeasure, d.selectionDiv, d.cursorDiv, d.lineDiv], | |
| 321 | null, "position: relative; outline: none"); | |
| 322 | var lines = eltP("div", [d.lineSpace], "CodeMirror-lines"); | |
| 323 | // Moved around its parent to cover visible view. | |
| 324 | d.mover = elt("div", [lines], null, "position: relative"); | |
| 325 | // Set to the height of the document, allowing scrolling. | |
| 326 | d.sizer = elt("div", [d.mover], "CodeMirror-sizer"); | |
| 327 | d.sizerWidth = null; | |
| 328 | // Behavior of elts with overflow: auto and padding is | |
| 329 | // inconsistent across browsers. This is used to ensure the | |
| 330 | // scrollable area is big enough. | |
| 331 | d.heightForcer = elt("div", null, null, "position: absolute; height: " + scrollerGap + "px; width: 1px;"); | |
| 332 | // Will contain the gutters, if any. | |
| 333 | d.gutters = elt("div", null, "CodeMirror-gutters"); | |
| 334 | d.lineGutter = null; | |
| 335 | // Actual scrollable element. | |
| 336 | d.scroller = elt("div", [d.sizer, d.heightForcer, d.gutters], "CodeMirror-scroll"); | |
| 337 | d.scroller.setAttribute("tabIndex", "-1"); | |
| 338 | // The element in which the editor lives. | |
| 339 | d.wrapper = elt("div", [d.scrollbarFiller, d.gutterFiller, d.scroller], "CodeMirror"); | |
| 340 | ||
| 341 | // Work around IE7 z-index bug (not perfect, hence IE7 not really being supported) | |
| 342 | if (ie && ie_version < 8) { d.gutters.style.zIndex = -1; d.scroller.style.paddingRight = 0; } | |
| 343 | if (!webkit && !(gecko && mobile)) { d.scroller.draggable = true; } | |
| 344 | ||
| 345 | if (place) { | |
| 346 | if (place.appendChild) { place.appendChild(d.wrapper); } | |
| 347 | else { place(d.wrapper); } | |
| 348 | } | |
| 349 | ||
| 350 | // Current rendered range (may be bigger than the view window). | |
| 351 | d.viewFrom = d.viewTo = doc.first; | |
| 352 | d.reportedViewFrom = d.reportedViewTo = doc.first; | |
| 353 | // Information about the rendered lines. | |
| 354 | d.view = []; | |
| 355 | d.renderedView = null; | |
| 356 | // Holds info about a single rendered line when it was rendered | |
| 357 | // for measurement, while not in view. | |
| 358 | d.externalMeasured = null; | |
| 359 | // Empty space (in pixels) above the view | |
| 360 | d.viewOffset = 0; | |
| 361 | d.lastWrapHeight = d.lastWrapWidth = 0; | |
| 362 | d.updateLineNumbers = null; | |
| 363 | ||
| 364 | d.nativeBarWidth = d.barHeight = d.barWidth = 0; | |
| 365 | d.scrollbarsClipped = false; | |
| 366 | ||
| 367 | // Used to only resize the line number gutter when necessary (when | |
| 368 | // the amount of lines crosses a boundary that makes its width change) | |
| 369 | d.lineNumWidth = d.lineNumInnerWidth = d.lineNumChars = null; | |
| 370 | // Set to true when a non-horizontal-scrolling line widget is | |
| 371 | // added. As an optimization, line widget aligning is skipped when | |
| 372 | // this is false. | |
| 373 | d.alignWidgets = false; | |
| 374 | ||
| 375 | d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; | |
| 376 | ||
| 377 | // Tracks the maximum line length so that the horizontal scrollbar | |
| 378 | // can be kept static when scrolling. | |
| 379 | d.maxLine = null; | |
| 380 | d.maxLineLength = 0; | |
| 381 | d.maxLineChanged = false; | |
| 382 | ||
| 383 | // Used for measuring wheel scrolling granularity | |
| 384 | d.wheelDX = d.wheelDY = d.wheelStartX = d.wheelStartY = null; | |
| 385 | ||
| 386 | // True when shift is held down. | |
| 387 | d.shift = false; | |
| 388 | ||
| 389 | // Used to track whether anything happened since the context menu | |
| 390 | // was opened. | |
| 391 | d.selForContextMenu = null; | |
| 392 | ||
| 393 | d.activeTouch = null; | |
| 394 | ||
| 395 | input.init(d); | |
| 396 | } | |
| 397 | ||
| 398 | // Find the line object corresponding to the given line number. | |
| 399 | function getLine(doc, n) { | |
| 400 | n -= doc.first; | |
| 401 | if (n < 0 || n >= doc.size) { throw new Error("There is no line " + (n + doc.first) + " in the document.") } | |
| 402 | var chunk = doc; | |
| 403 | while (!chunk.lines) { | |
| 404 | for (var i = 0;; ++i) { | |
| 405 | var child = chunk.children[i], sz = child.chunkSize(); | |
| 406 | if (n < sz) { chunk = child; break } | |
| 407 | n -= sz; | |
| 408 | } | |
| 409 | } | |
| 410 | return chunk.lines[n] | |
| 411 | } | |
| 412 | ||
| 413 | // Get the part of a document between two positions, as an array of | |
| 414 | // strings. | |
| 415 | function getBetween(doc, start, end) { | |
| 416 | var out = [], n = start.line; | |
| 417 | doc.iter(start.line, end.line + 1, function (line) { | |
| 418 | var text = line.text; | |
| 419 | if (n == end.line) { text = text.slice(0, end.ch); } | |
| 420 | if (n == start.line) { text = text.slice(start.ch); } | |
| 421 | out.push(text); | |
| 422 | ++n; | |
| 423 | }); | |
| 424 | return out | |
| 425 | } | |
| 426 | // Get the lines between from and to, as array of strings. | |
| 427 | function getLines(doc, from, to) { | |
| 428 | var out = []; | |
| 429 | doc.iter(from, to, function (line) { out.push(line.text); }); // iter aborts when callback returns truthy value | |
| 430 | return out | |
| 431 | } | |
| 432 | ||
| 433 | // Update the height of a line, propagating the height change | |
| 434 | // upwards to parent nodes. | |
| 435 | function updateLineHeight(line, height) { | |
| 436 | var diff = height - line.height; | |
| 437 | if (diff) { for (var n = line; n; n = n.parent) { n.height += diff; } } | |
| 438 | } | |
| 439 | ||
| 440 | // Given a line object, find its line number by walking up through | |
| 441 | // its parent links. | |
| 442 | function lineNo(line) { | |
| 443 | if (line.parent == null) { return null } | |
| 444 | var cur = line.parent, no = indexOf(cur.lines, line); | |
| 445 | for (var chunk = cur.parent; chunk; cur = chunk, chunk = chunk.parent) { | |
| 446 | for (var i = 0;; ++i) { | |
| 447 | if (chunk.children[i] == cur) { break } | |
| 448 | no += chunk.children[i].chunkSize(); | |
| 449 | } | |
| 450 | } | |
| 451 | return no + cur.first | |
| 452 | } | |
| 453 | ||
| 454 | // Find the line at the given vertical position, using the height | |
| 455 | // information in the document tree. | |
| 456 | function lineAtHeight(chunk, h) { | |
| 457 | var n = chunk.first; | |
| 458 | outer: do { | |
| 459 | for (var i$1 = 0; i$1 < chunk.children.length; ++i$1) { | |
| 460 | var child = chunk.children[i$1], ch = child.height; | |
| 461 | if (h < ch) { chunk = child; continue outer } | |
| 462 | h -= ch; | |
| 463 | n += child.chunkSize(); | |
| 464 | } | |
| 465 | return n | |
| 466 | } while (!chunk.lines) | |
| 467 | var i = 0; | |
| 468 | for (; i < chunk.lines.length; ++i) { | |
| 469 | var line = chunk.lines[i], lh = line.height; | |
| 470 | if (h < lh) { break } | |
| 471 | h -= lh; | |
| 472 | } | |
| 473 | return n + i | |
| 474 | } | |
| 475 | ||
| 476 | function isLine(doc, l) {return l >= doc.first && l < doc.first + doc.size} | |
| 477 | ||
| 478 | function lineNumberFor(options, i) { | |
| 479 | return String(options.lineNumberFormatter(i + options.firstLineNumber)) | |
| 480 | } | |
| 481 | ||
| 482 | // A Pos instance represents a position within the text. | |
| 483 | function Pos(line, ch, sticky) { | |
| 484 | if ( sticky === void 0 ) sticky = null; | |
| 485 | ||
| 486 | if (!(this instanceof Pos)) { return new Pos(line, ch, sticky) } | |
| 487 | this.line = line; | |
| 488 | this.ch = ch; | |
| 489 | this.sticky = sticky; | |
| 490 | } | |
| 491 | ||
| 492 | // Compare two positions, return 0 if they are the same, a negative | |
| 493 | // number when a is less, and a positive number otherwise. | |
| 494 | function cmp(a, b) { return a.line - b.line || a.ch - b.ch } | |
| 495 | ||
| 496 | function equalCursorPos(a, b) { return a.sticky == b.sticky && cmp(a, b) == 0 } | |
| 497 | ||
| 498 | function copyPos(x) {return Pos(x.line, x.ch)} | |
| 499 | function maxPos(a, b) { return cmp(a, b) < 0 ? b : a } | |
| 500 | function minPos(a, b) { return cmp(a, b) < 0 ? a : b } | |
| 501 | ||
| 502 | // Most of the external API clips given positions to make sure they | |
| 503 | // actually exist within the document. | |
| 504 | function clipLine(doc, n) {return Math.max(doc.first, Math.min(n, doc.first + doc.size - 1))} | |
| 505 | function clipPos(doc, pos) { | |
| 506 | if (pos.line < doc.first) { return Pos(doc.first, 0) } | |
| 507 | var last = doc.first + doc.size - 1; | |
| 508 | if (pos.line > last) { return Pos(last, getLine(doc, last).text.length) } | |
| 509 | return clipToLen(pos, getLine(doc, pos.line).text.length) | |
| 510 | } | |
| 511 | function clipToLen(pos, linelen) { | |
| 512 | var ch = pos.ch; | |
| 513 | if (ch == null || ch > linelen) { return Pos(pos.line, linelen) } | |
| 514 | else if (ch < 0) { return Pos(pos.line, 0) } | |
| 515 | else { return pos } | |
| 516 | } | |
| 517 | function clipPosArray(doc, array) { | |
| 518 | var out = []; | |
| 519 | for (var i = 0; i < array.length; i++) { out[i] = clipPos(doc, array[i]); } | |
| 520 | return out | |
| 521 | } | |
| 522 | ||
| 523 | // Optimize some code when these features are not used. | |
| 524 | var sawReadOnlySpans = false, sawCollapsedSpans = false; | |
| 525 | ||
| 526 | function seeReadOnlySpans() { | |
| 527 | sawReadOnlySpans = true; | |
| 528 | } | |
| 529 | ||
| 530 | function seeCollapsedSpans() { | |
| 531 | sawCollapsedSpans = true; | |
| 532 | } | |
| 533 | ||
| 534 | // TEXTMARKER SPANS | |
| 535 | ||
| 536 | function MarkedSpan(marker, from, to) { | |
| 537 | this.marker = marker; | |
| 538 | this.from = from; this.to = to; | |
| 539 | } | |
| 540 | ||
| 541 | // Search an array of spans for a span matching the given marker. | |
| 542 | function getMarkedSpanFor(spans, marker) { | |
| 543 | if (spans) { for (var i = 0; i < spans.length; ++i) { | |
| 544 | var span = spans[i]; | |
| 545 | if (span.marker == marker) { return span } | |
| 546 | } } | |
| 547 | } | |
| 548 | // Remove a span from an array, returning undefined if no spans are | |
| 549 | // left (we don't store arrays for lines without spans). | |
| 550 | function removeMarkedSpan(spans, span) { | |
| 551 | var r; | |
| 552 | for (var i = 0; i < spans.length; ++i) | |
| 553 | { if (spans[i] != span) { (r || (r = [])).push(spans[i]); } } | |
| 554 | return r | |
| 555 | } | |
| 556 | // Add a span to a line. | |
| 557 | function addMarkedSpan(line, span) { | |
| 558 | line.markedSpans = line.markedSpans ? line.markedSpans.concat([span]) : [span]; | |
| 559 | span.marker.attachLine(line); | |
| 560 | } | |
| 561 | ||
| 562 | // Used for the algorithm that adjusts markers for a change in the | |
| 563 | // document. These functions cut an array of spans at a given | |
| 564 | // character position, returning an array of remaining chunks (or | |
| 565 | // undefined if nothing remains). | |
| 566 | function markedSpansBefore(old, startCh, isInsert) { | |
| 567 | var nw; | |
| 568 | if (old) { for (var i = 0; i < old.length; ++i) { | |
| 569 | var span = old[i], marker = span.marker; | |
| 570 | var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= startCh : span.from < startCh); | |
| 571 | if (startsBefore || span.from == startCh && marker.type == "bookmark" && (!isInsert || !span.marker.insertLeft)) { | |
| 572 | var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= startCh : span.to > startCh) | |
| 573 | ;(nw || (nw = [])).push(new MarkedSpan(marker, span.from, endsAfter ? null : span.to)); | |
| 574 | } | |
| 575 | } } | |
| 576 | return nw | |
| 577 | } | |
| 578 | function markedSpansAfter(old, endCh, isInsert) { | |
| 579 | var nw; | |
| 580 | if (old) { for (var i = 0; i < old.length; ++i) { | |
| 581 | var span = old[i], marker = span.marker; | |
| 582 | var endsAfter = span.to == null || (marker.inclusiveRight ? span.to >= endCh : span.to > endCh); | |
| 583 | if (endsAfter || span.from == endCh && marker.type == "bookmark" && (!isInsert || span.marker.insertLeft)) { | |
| 584 | var startsBefore = span.from == null || (marker.inclusiveLeft ? span.from <= endCh : span.from < endCh) | |
| 585 | ;(nw || (nw = [])).push(new MarkedSpan(marker, startsBefore ? null : span.from - endCh, | |
| 586 | span.to == null ? null : span.to - endCh)); | |
| 587 | } | |
| 588 | } } | |
| 589 | return nw | |
| 590 | } | |
| 591 | ||
| 592 | // Given a change object, compute the new set of marker spans that | |
| 593 | // cover the line in which the change took place. Removes spans | |
| 594 | // entirely within the change, reconnects spans belonging to the | |
| 595 | // same marker that appear on both sides of the change, and cuts off | |
| 596 | // spans partially within the change. Returns an array of span | |
| 597 | // arrays with one element for each line in (after) the change. | |
| 598 | function stretchSpansOverChange(doc, change) { | |
| 599 | if (change.full) { return null } | |
| 600 | var oldFirst = isLine(doc, change.from.line) && getLine(doc, change.from.line).markedSpans; | |
| 601 | var oldLast = isLine(doc, change.to.line) && getLine(doc, change.to.line).markedSpans; | |
| 602 | if (!oldFirst && !oldLast) { return null } | |
| 603 | ||
| 604 | var startCh = change.from.ch, endCh = change.to.ch, isInsert = cmp(change.from, change.to) == 0; | |
| 605 | // Get the spans that 'stick out' on both sides | |
| 606 | var first = markedSpansBefore(oldFirst, startCh, isInsert); | |
| 607 | var last = markedSpansAfter(oldLast, endCh, isInsert); | |
| 608 | ||
| 609 | // Next, merge those two ends | |
| 610 | var sameLine = change.text.length == 1, offset = lst(change.text).length + (sameLine ? startCh : 0); | |
| 611 | if (first) { | |
| 612 | // Fix up .to properties of first | |
| 613 | for (var i = 0; i < first.length; ++i) { | |
| 614 | var span = first[i]; | |
| 615 | if (span.to == null) { | |
| 616 | var found = getMarkedSpanFor(last, span.marker); | |
| 617 | if (!found) { span.to = startCh; } | |
| 618 | else if (sameLine) { span.to = found.to == null ? null : found.to + offset; } | |
| 619 | } | |
| 620 | } | |
| 621 | } | |
| 622 | if (last) { | |
| 623 | // Fix up .from in last (or move them into first in case of sameLine) | |
| 624 | for (var i$1 = 0; i$1 < last.length; ++i$1) { | |
| 625 | var span$1 = last[i$1]; | |
| 626 | if (span$1.to != null) { span$1.to += offset; } | |
| 627 | if (span$1.from == null) { | |
| 628 | var found$1 = getMarkedSpanFor(first, span$1.marker); | |
| 629 | if (!found$1) { | |
| 630 | span$1.from = offset; | |
| 631 | if (sameLine) { (first || (first = [])).push(span$1); } | |
| 632 | } | |
| 633 | } else { | |
| 634 | span$1.from += offset; | |
| 635 | if (sameLine) { (first || (first = [])).push(span$1); } | |
| 636 | } | |
| 637 | } | |
| 638 | } | |
| 639 | // Make sure we didn't create any zero-length spans | |
| 640 | if (first) { first = clearEmptySpans(first); } | |
| 641 | if (last && last != first) { last = clearEmptySpans(last); } | |
| 642 | ||
| 643 | var newMarkers = [first]; | |
| 644 | if (!sameLine) { | |
| 645 | // Fill gap with whole-line-spans | |
| 646 | var gap = change.text.length - 2, gapMarkers; | |
| 647 | if (gap > 0 && first) | |
| 648 | { for (var i$2 = 0; i$2 < first.length; ++i$2) | |
| 649 | { if (first[i$2].to == null) | |
| 650 | { (gapMarkers || (gapMarkers = [])).push(new MarkedSpan(first[i$2].marker, null, null)); } } } | |
| 651 | for (var i$3 = 0; i$3 < gap; ++i$3) | |
| 652 | { newMarkers.push(gapMarkers); } | |
| 653 | newMarkers.push(last); | |
| 654 | } | |
| 655 | return newMarkers | |
| 656 | } | |
| 657 | ||
| 658 | // Remove spans that are empty and don't have a clearWhenEmpty | |
| 659 | // option of false. | |
| 660 | function clearEmptySpans(spans) { | |
| 661 | for (var i = 0; i < spans.length; ++i) { | |
| 662 | var span = spans[i]; | |
| 663 | if (span.from != null && span.from == span.to && span.marker.clearWhenEmpty !== false) | |
| 664 | { spans.splice(i--, 1); } | |
| 665 | } | |
| 666 | if (!spans.length) { return null } | |
| 667 | return spans | |
| 668 | } | |
| 669 | ||
| 670 | // Used to 'clip' out readOnly ranges when making a change. | |
| 671 | function removeReadOnlyRanges(doc, from, to) { | |
| 672 | var markers = null; | |
| 673 | doc.iter(from.line, to.line + 1, function (line) { | |
| 674 | if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { | |
| 675 | var mark = line.markedSpans[i].marker; | |
| 676 | if (mark.readOnly && (!markers || indexOf(markers, mark) == -1)) | |
| 677 | { (markers || (markers = [])).push(mark); } | |
| 678 | } } | |
| 679 | }); | |
| 680 | if (!markers) { return null } | |
| 681 | var parts = [{from: from, to: to}]; | |
| 682 | for (var i = 0; i < markers.length; ++i) { | |
| 683 | var mk = markers[i], m = mk.find(0); | |
| 684 | for (var j = 0; j < parts.length; ++j) { | |
| 685 | var p = parts[j]; | |
| 686 | if (cmp(p.to, m.from) < 0 || cmp(p.from, m.to) > 0) { continue } | |
| 687 | var newParts = [j, 1], dfrom = cmp(p.from, m.from), dto = cmp(p.to, m.to); | |
| 688 | if (dfrom < 0 || !mk.inclusiveLeft && !dfrom) | |
| 689 | { newParts.push({from: p.from, to: m.from}); } | |
| 690 | if (dto > 0 || !mk.inclusiveRight && !dto) | |
| 691 | { newParts.push({from: m.to, to: p.to}); } | |
| 692 | parts.splice.apply(parts, newParts); | |
| 693 | j += newParts.length - 3; | |
| 694 | } | |
| 695 | } | |
| 696 | return parts | |
| 697 | } | |
| 698 | ||
| 699 | // Connect or disconnect spans from a line. | |
| 700 | function detachMarkedSpans(line) { | |
| 701 | var spans = line.markedSpans; | |
| 702 | if (!spans) { return } | |
| 703 | for (var i = 0; i < spans.length; ++i) | |
| 704 | { spans[i].marker.detachLine(line); } | |
| 705 | line.markedSpans = null; | |
| 706 | } | |
| 707 | function attachMarkedSpans(line, spans) { | |
| 708 | if (!spans) { return } | |
| 709 | for (var i = 0; i < spans.length; ++i) | |
| 710 | { spans[i].marker.attachLine(line); } | |
| 711 | line.markedSpans = spans; | |
| 712 | } | |
| 713 | ||
| 714 | // Helpers used when computing which overlapping collapsed span | |
| 715 | // counts as the larger one. | |
| 716 | function extraLeft(marker) { return marker.inclusiveLeft ? -1 : 0 } | |
| 717 | function extraRight(marker) { return marker.inclusiveRight ? 1 : 0 } | |
| 718 | ||
| 719 | // Returns a number indicating which of two overlapping collapsed | |
| 720 | // spans is larger (and thus includes the other). Falls back to | |
| 721 | // comparing ids when the spans cover exactly the same range. | |
| 722 | function compareCollapsedMarkers(a, b) { | |
| 723 | var lenDiff = a.lines.length - b.lines.length; | |
| 724 | if (lenDiff != 0) { return lenDiff } | |
| 725 | var aPos = a.find(), bPos = b.find(); | |
| 726 | var fromCmp = cmp(aPos.from, bPos.from) || extraLeft(a) - extraLeft(b); | |
| 727 | if (fromCmp) { return -fromCmp } | |
| 728 | var toCmp = cmp(aPos.to, bPos.to) || extraRight(a) - extraRight(b); | |
| 729 | if (toCmp) { return toCmp } | |
| 730 | return b.id - a.id | |
| 731 | } | |
| 732 | ||
| 733 | // Find out whether a line ends or starts in a collapsed span. If | |
| 734 | // so, return the marker for that span. | |
| 735 | function collapsedSpanAtSide(line, start) { | |
| 736 | var sps = sawCollapsedSpans && line.markedSpans, found; | |
| 737 | if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { | |
| 738 | sp = sps[i]; | |
| 739 | if (sp.marker.collapsed && (start ? sp.from : sp.to) == null && | |
| 740 | (!found || compareCollapsedMarkers(found, sp.marker) < 0)) | |
| 741 | { found = sp.marker; } | |
| 742 | } } | |
| 743 | return found | |
| 744 | } | |
| 745 | function collapsedSpanAtStart(line) { return collapsedSpanAtSide(line, true) } | |
| 746 | function collapsedSpanAtEnd(line) { return collapsedSpanAtSide(line, false) } | |
| 747 | ||
| 748 | function collapsedSpanAround(line, ch) { | |
| 749 | var sps = sawCollapsedSpans && line.markedSpans, found; | |
| 750 | if (sps) { for (var i = 0; i < sps.length; ++i) { | |
| 751 | var sp = sps[i]; | |
| 752 | if (sp.marker.collapsed && (sp.from == null || sp.from < ch) && (sp.to == null || sp.to > ch) && | |
| 753 | (!found || compareCollapsedMarkers(found, sp.marker) < 0)) { found = sp.marker; } | |
| 754 | } } | |
| 755 | return found | |
| 756 | } | |
| 757 | ||
| 758 | // Test whether there exists a collapsed span that partially | |
| 759 | // overlaps (covers the start or end, but not both) of a new span. | |
| 760 | // Such overlap is not allowed. | |
| 761 | function conflictingCollapsedRange(doc, lineNo$$1, from, to, marker) { | |
| 762 | var line = getLine(doc, lineNo$$1); | |
| 763 | var sps = sawCollapsedSpans && line.markedSpans; | |
| 764 | if (sps) { for (var i = 0; i < sps.length; ++i) { | |
| 765 | var sp = sps[i]; | |
| 766 | if (!sp.marker.collapsed) { continue } | |
| 767 | var found = sp.marker.find(0); | |
| 768 | var fromCmp = cmp(found.from, from) || extraLeft(sp.marker) - extraLeft(marker); | |
| 769 | var toCmp = cmp(found.to, to) || extraRight(sp.marker) - extraRight(marker); | |
| 770 | if (fromCmp >= 0 && toCmp <= 0 || fromCmp <= 0 && toCmp >= 0) { continue } | |
| 771 | if (fromCmp <= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.to, from) >= 0 : cmp(found.to, from) > 0) || | |
| 772 | fromCmp >= 0 && (sp.marker.inclusiveRight && marker.inclusiveLeft ? cmp(found.from, to) <= 0 : cmp(found.from, to) < 0)) | |
| 773 | { return true } | |
| 774 | } } | |
| 775 | } | |
| 776 | ||
| 777 | // A visual line is a line as drawn on the screen. Folding, for | |
| 778 | // example, can cause multiple logical lines to appear on the same | |
| 779 | // visual line. This finds the start of the visual line that the | |
| 780 | // given line is part of (usually that is the line itself). | |
| 781 | function visualLine(line) { | |
| 782 | var merged; | |
| 783 | while (merged = collapsedSpanAtStart(line)) | |
| 784 | { line = merged.find(-1, true).line; } | |
| 785 | return line | |
| 786 | } | |
| 787 | ||
| 788 | function visualLineEnd(line) { | |
| 789 | var merged; | |
| 790 | while (merged = collapsedSpanAtEnd(line)) | |
| 791 | { line = merged.find(1, true).line; } | |
| 792 | return line | |
| 793 | } | |
| 794 | ||
| 795 | // Returns an array of logical lines that continue the visual line | |
| 796 | // started by the argument, or undefined if there are no such lines. | |
| 797 | function visualLineContinued(line) { | |
| 798 | var merged, lines; | |
| 799 | while (merged = collapsedSpanAtEnd(line)) { | |
| 800 | line = merged.find(1, true).line | |
| 801 | ;(lines || (lines = [])).push(line); | |
| 802 | } | |
| 803 | return lines | |
| 804 | } | |
| 805 | ||
| 806 | // Get the line number of the start of the visual line that the | |
| 807 | // given line number is part of. | |
| 808 | function visualLineNo(doc, lineN) { | |
| 809 | var line = getLine(doc, lineN), vis = visualLine(line); | |
| 810 | if (line == vis) { return lineN } | |
| 811 | return lineNo(vis) | |
| 812 | } | |
| 813 | ||
| 814 | // Get the line number of the start of the next visual line after | |
| 815 | // the given line. | |
| 816 | function visualLineEndNo(doc, lineN) { | |
| 817 | if (lineN > doc.lastLine()) { return lineN } | |
| 818 | var line = getLine(doc, lineN), merged; | |
| 819 | if (!lineIsHidden(doc, line)) { return lineN } | |
| 820 | while (merged = collapsedSpanAtEnd(line)) | |
| 821 | { line = merged.find(1, true).line; } | |
| 822 | return lineNo(line) + 1 | |
| 823 | } | |
| 824 | ||
| 825 | // Compute whether a line is hidden. Lines count as hidden when they | |
| 826 | // are part of a visual line that starts with another line, or when | |
| 827 | // they are entirely covered by collapsed, non-widget span. | |
| 828 | function lineIsHidden(doc, line) { | |
| 829 | var sps = sawCollapsedSpans && line.markedSpans; | |
| 830 | if (sps) { for (var sp = (void 0), i = 0; i < sps.length; ++i) { | |
| 831 | sp = sps[i]; | |
| 832 | if (!sp.marker.collapsed) { continue } | |
| 833 | if (sp.from == null) { return true } | |
| 834 | if (sp.marker.widgetNode) { continue } | |
| 835 | if (sp.from == 0 && sp.marker.inclusiveLeft && lineIsHiddenInner(doc, line, sp)) | |
| 836 | { return true } | |
| 837 | } } | |
| 838 | } | |
| 839 | function lineIsHiddenInner(doc, line, span) { | |
| 840 | if (span.to == null) { | |
| 841 | var end = span.marker.find(1, true); | |
| 842 | return lineIsHiddenInner(doc, end.line, getMarkedSpanFor(end.line.markedSpans, span.marker)) | |
| 843 | } | |
| 844 | if (span.marker.inclusiveRight && span.to == line.text.length) | |
| 845 | { return true } | |
| 846 | for (var sp = (void 0), i = 0; i < line.markedSpans.length; ++i) { | |
| 847 | sp = line.markedSpans[i]; | |
| 848 | if (sp.marker.collapsed && !sp.marker.widgetNode && sp.from == span.to && | |
| 849 | (sp.to == null || sp.to != span.from) && | |
| 850 | (sp.marker.inclusiveLeft || span.marker.inclusiveRight) && | |
| 851 | lineIsHiddenInner(doc, line, sp)) { return true } | |
| 852 | } | |
| 853 | } | |
| 854 | ||
| 855 | // Find the height above the given line. | |
| 856 | function heightAtLine(lineObj) { | |
| 857 | lineObj = visualLine(lineObj); | |
| 858 | ||
| 859 | var h = 0, chunk = lineObj.parent; | |
| 860 | for (var i = 0; i < chunk.lines.length; ++i) { | |
| 861 | var line = chunk.lines[i]; | |
| 862 | if (line == lineObj) { break } | |
| 863 | else { h += line.height; } | |
| 864 | } | |
| 865 | for (var p = chunk.parent; p; chunk = p, p = chunk.parent) { | |
| 866 | for (var i$1 = 0; i$1 < p.children.length; ++i$1) { | |
| 867 | var cur = p.children[i$1]; | |
| 868 | if (cur == chunk) { break } | |
| 869 | else { h += cur.height; } | |
| 870 | } | |
| 871 | } | |
| 872 | return h | |
| 873 | } | |
| 874 | ||
| 875 | // Compute the character length of a line, taking into account | |
| 876 | // collapsed ranges (see markText) that might hide parts, and join | |
| 877 | // other lines onto it. | |
| 878 | function lineLength(line) { | |
| 879 | if (line.height == 0) { return 0 } | |
| 880 | var len = line.text.length, merged, cur = line; | |
| 881 | while (merged = collapsedSpanAtStart(cur)) { | |
| 882 | var found = merged.find(0, true); | |
| 883 | cur = found.from.line; | |
| 884 | len += found.from.ch - found.to.ch; | |
| 885 | } | |
| 886 | cur = line; | |
| 887 | while (merged = collapsedSpanAtEnd(cur)) { | |
| 888 | var found$1 = merged.find(0, true); | |
| 889 | len -= cur.text.length - found$1.from.ch; | |
| 890 | cur = found$1.to.line; | |
| 891 | len += cur.text.length - found$1.to.ch; | |
| 892 | } | |
| 893 | return len | |
| 894 | } | |
| 895 | ||
| 896 | // Find the longest line in the document. | |
| 897 | function findMaxLine(cm) { | |
| 898 | var d = cm.display, doc = cm.doc; | |
| 899 | d.maxLine = getLine(doc, doc.first); | |
| 900 | d.maxLineLength = lineLength(d.maxLine); | |
| 901 | d.maxLineChanged = true; | |
| 902 | doc.iter(function (line) { | |
| 903 | var len = lineLength(line); | |
| 904 | if (len > d.maxLineLength) { | |
| 905 | d.maxLineLength = len; | |
| 906 | d.maxLine = line; | |
| 907 | } | |
| 908 | }); | |
| 909 | } | |
| 910 | ||
| 911 | // BIDI HELPERS | |
| 912 | ||
| 913 | function iterateBidiSections(order, from, to, f) { | |
| 914 | if (!order) { return f(from, to, "ltr", 0) } | |
| 915 | var found = false; | |
| 916 | for (var i = 0; i < order.length; ++i) { | |
| 917 | var part = order[i]; | |
| 918 | if (part.from < to && part.to > from || from == to && part.to == from) { | |
| 919 | f(Math.max(part.from, from), Math.min(part.to, to), part.level == 1 ? "rtl" : "ltr", i); | |
| 920 | found = true; | |
| 921 | } | |
| 922 | } | |
| 923 | if (!found) { f(from, to, "ltr"); } | |
| 924 | } | |
| 925 | ||
| 926 | var bidiOther = null; | |
| 927 | function getBidiPartAt(order, ch, sticky) { | |
| 928 | var found; | |
| 929 | bidiOther = null; | |
| 930 | for (var i = 0; i < order.length; ++i) { | |
| 931 | var cur = order[i]; | |
| 932 | if (cur.from < ch && cur.to > ch) { return i } | |
| 933 | if (cur.to == ch) { | |
| 934 | if (cur.from != cur.to && sticky == "before") { found = i; } | |
| 935 | else { bidiOther = i; } | |
| 936 | } | |
| 937 | if (cur.from == ch) { | |
| 938 | if (cur.from != cur.to && sticky != "before") { found = i; } | |
| 939 | else { bidiOther = i; } | |
| 940 | } | |
| 941 | } | |
| 942 | return found != null ? found : bidiOther | |
| 943 | } | |
| 944 | ||
| 945 | // Bidirectional ordering algorithm | |
| 946 | // See http://unicode.org/reports/tr9/tr9-13.html for the algorithm | |
| 947 | // that this (partially) implements. | |
| 948 | ||
| 949 | // One-char codes used for character types: | |
| 950 | // L (L): Left-to-Right | |
| 951 | // R (R): Right-to-Left | |
| 952 | // r (AL): Right-to-Left Arabic | |
| 953 | // 1 (EN): European Number | |
| 954 | // + (ES): European Number Separator | |
| 955 | // % (ET): European Number Terminator | |
| 956 | // n (AN): Arabic Number | |
| 957 | // , (CS): Common Number Separator | |
| 958 | // m (NSM): Non-Spacing Mark | |
| 959 | // b (BN): Boundary Neutral | |
| 960 | // s (B): Paragraph Separator | |
| 961 | // t (S): Segment Separator | |
| 962 | // w (WS): Whitespace | |
| 963 | // N (ON): Other Neutrals | |
| 964 | ||
| 965 | // Returns null if characters are ordered as they appear | |
| 966 | // (left-to-right), or an array of sections ({from, to, level} | |
| 967 | // objects) in the order in which they occur visually. | |
| 968 | var bidiOrdering = (function() { | |
| 969 | // Character types for codepoints 0 to 0xff | |
| 970 | var lowTypes = "bbbbbbbbbtstwsbbbbbbbbbbbbbbssstwNN%%%NNNNNN,N,N1111111111NNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNNNLLLLLLLLLLLLLLLLLLLLLLLLLLNNNNbbbbbbsbbbbbbbbbbbbbbbbbbbbbbbbbb,N%%%%NNNNLNNNNN%%11NLNNN1LNNNNNLLLLLLLLLLLLLLLLLLLLLLLNLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLN"; | |
| 971 | // Character types for codepoints 0x600 to 0x6f9 | |
| 972 | var arabicTypes = "nnnnnnNNr%%r,rNNmmmmmmmmmmmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmmmmmmmmmmmmmmmnnnnnnnnnn%nnrrrmrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrmmmmmmmnNmmmmmmrrmmNmmmmrr1111111111"; | |
| 973 | function charType(code) { | |
| 974 | if (code <= 0xf7) { return lowTypes.charAt(code) } | |
| 975 | else if (0x590 <= code && code <= 0x5f4) { return "R" } | |
| 976 | else if (0x600 <= code && code <= 0x6f9) { return arabicTypes.charAt(code - 0x600) } | |
| 977 | else if (0x6ee <= code && code <= 0x8ac) { return "r" } | |
| 978 | else if (0x2000 <= code && code <= 0x200b) { return "w" } | |
| 979 | else if (code == 0x200c) { return "b" } | |
| 980 | else { return "L" } | |
| 981 | } | |
| 982 | ||
| 983 | var bidiRE = /[\u0590-\u05f4\u0600-\u06ff\u0700-\u08ac]/; | |
| 984 | var isNeutral = /[stwN]/, isStrong = /[LRr]/, countsAsLeft = /[Lb1n]/, countsAsNum = /[1n]/; | |
| 985 | ||
| 986 | function BidiSpan(level, from, to) { | |
| 987 | this.level = level; | |
| 988 | this.from = from; this.to = to; | |
| 989 | } | |
| 990 | ||
| 991 | return function(str, direction) { | |
| 992 | var outerType = direction == "ltr" ? "L" : "R"; | |
| 993 | ||
| 994 | if (str.length == 0 || direction == "ltr" && !bidiRE.test(str)) { return false } | |
| 995 | var len = str.length, types = []; | |
| 996 | for (var i = 0; i < len; ++i) | |
| 997 | { types.push(charType(str.charCodeAt(i))); } | |
| 998 | ||
| 999 | // W1. Examine each non-spacing mark (NSM) in the level run, and | |
| 1000 | // change the type of the NSM to the type of the previous | |
| 1001 | // character. If the NSM is at the start of the level run, it will | |
| 1002 | // get the type of sor. | |
| 1003 | for (var i$1 = 0, prev = outerType; i$1 < len; ++i$1) { | |
| 1004 | var type = types[i$1]; | |
| 1005 | if (type == "m") { types[i$1] = prev; } | |
| 1006 | else { prev = type; } | |
| 1007 | } | |
| 1008 | ||
| 1009 | // W2. Search backwards from each instance of a European number | |
| 1010 | // until the first strong type (R, L, AL, or sor) is found. If an | |
| 1011 | // AL is found, change the type of the European number to Arabic | |
| 1012 | // number. | |
| 1013 | // W3. Change all ALs to R. | |
| 1014 | for (var i$2 = 0, cur = outerType; i$2 < len; ++i$2) { | |
| 1015 | var type$1 = types[i$2]; | |
| 1016 | if (type$1 == "1" && cur == "r") { types[i$2] = "n"; } | |
| 1017 | else if (isStrong.test(type$1)) { cur = type$1; if (type$1 == "r") { types[i$2] = "R"; } } | |
| 1018 | } | |
| 1019 | ||
| 1020 | // W4. A single European separator between two European numbers | |
| 1021 | // changes to a European number. A single common separator between | |
| 1022 | // two numbers of the same type changes to that type. | |
| 1023 | for (var i$3 = 1, prev$1 = types[0]; i$3 < len - 1; ++i$3) { | |
| 1024 | var type$2 = types[i$3]; | |
| 1025 | if (type$2 == "+" && prev$1 == "1" && types[i$3+1] == "1") { types[i$3] = "1"; } | |
| 1026 | else if (type$2 == "," && prev$1 == types[i$3+1] && | |
| 1027 | (prev$1 == "1" || prev$1 == "n")) { types[i$3] = prev$1; } | |
| 1028 | prev$1 = type$2; | |
| 1029 | } | |
| 1030 | ||
| 1031 | // W5. A sequence of European terminators adjacent to European | |
| 1032 | // numbers changes to all European numbers. | |
| 1033 | // W6. Otherwise, separators and terminators change to Other | |
| 1034 | // Neutral. | |
| 1035 | for (var i$4 = 0; i$4 < len; ++i$4) { | |
| 1036 | var type$3 = types[i$4]; | |
| 1037 | if (type$3 == ",") { types[i$4] = "N"; } | |
| 1038 | else if (type$3 == "%") { | |
| 1039 | var end = (void 0); | |
| 1040 | for (end = i$4 + 1; end < len && types[end] == "%"; ++end) {} | |
| 1041 | var replace = (i$4 && types[i$4-1] == "!") || (end < len && types[end] == "1") ? "1" : "N"; | |
| 1042 | for (var j = i$4; j < end; ++j) { types[j] = replace; } | |
| 1043 | i$4 = end - 1; | |
| 1044 | } | |
| 1045 | } | |
| 1046 | ||
| 1047 | // W7. Search backwards from each instance of a European number | |
| 1048 | // until the first strong type (R, L, or sor) is found. If an L is | |
| 1049 | // found, then change the type of the European number to L. | |
| 1050 | for (var i$5 = 0, cur$1 = outerType; i$5 < len; ++i$5) { | |
| 1051 | var type$4 = types[i$5]; | |
| 1052 | if (cur$1 == "L" && type$4 == "1") { types[i$5] = "L"; } | |
| 1053 | else if (isStrong.test(type$4)) { cur$1 = type$4; } | |
| 1054 | } | |
| 1055 | ||
| 1056 | // N1. A sequence of neutrals takes the direction of the | |
| 1057 | // surrounding strong text if the text on both sides has the same | |
| 1058 | // direction. European and Arabic numbers act as if they were R in | |
| 1059 | // terms of their influence on neutrals. Start-of-level-run (sor) | |
| 1060 | // and end-of-level-run (eor) are used at level run boundaries. | |
| 1061 | // N2. Any remaining neutrals take the embedding direction. | |
| 1062 | for (var i$6 = 0; i$6 < len; ++i$6) { | |
| 1063 | if (isNeutral.test(types[i$6])) { | |
| 1064 | var end$1 = (void 0); | |
| 1065 | for (end$1 = i$6 + 1; end$1 < len && isNeutral.test(types[end$1]); ++end$1) {} | |
| 1066 | var before = (i$6 ? types[i$6-1] : outerType) == "L"; | |
| 1067 | var after = (end$1 < len ? types[end$1] : outerType) == "L"; | |
| 1068 | var replace$1 = before == after ? (before ? "L" : "R") : outerType; | |
| 1069 | for (var j$1 = i$6; j$1 < end$1; ++j$1) { types[j$1] = replace$1; } | |
| 1070 | i$6 = end$1 - 1; | |
| 1071 | } | |
| 1072 | } | |
| 1073 | ||
| 1074 | // Here we depart from the documented algorithm, in order to avoid | |
| 1075 | // building up an actual levels array. Since there are only three | |
| 1076 | // levels (0, 1, 2) in an implementation that doesn't take | |
| 1077 | // explicit embedding into account, we can build up the order on | |
| 1078 | // the fly, without following the level-based algorithm. | |
| 1079 | var order = [], m; | |
| 1080 | for (var i$7 = 0; i$7 < len;) { | |
| 1081 | if (countsAsLeft.test(types[i$7])) { | |
| 1082 | var start = i$7; | |
| 1083 | for (++i$7; i$7 < len && countsAsLeft.test(types[i$7]); ++i$7) {} | |
| 1084 | order.push(new BidiSpan(0, start, i$7)); | |
| 1085 | } else { | |
| 1086 | var pos = i$7, at = order.length; | |
| 1087 | for (++i$7; i$7 < len && types[i$7] != "L"; ++i$7) {} | |
| 1088 | for (var j$2 = pos; j$2 < i$7;) { | |
| 1089 | if (countsAsNum.test(types[j$2])) { | |
| 1090 | if (pos < j$2) { order.splice(at, 0, new BidiSpan(1, pos, j$2)); } | |
| 1091 | var nstart = j$2; | |
| 1092 | for (++j$2; j$2 < i$7 && countsAsNum.test(types[j$2]); ++j$2) {} | |
| 1093 | order.splice(at, 0, new BidiSpan(2, nstart, j$2)); | |
| 1094 | pos = j$2; | |
| 1095 | } else { ++j$2; } | |
| 1096 | } | |
| 1097 | if (pos < i$7) { order.splice(at, 0, new BidiSpan(1, pos, i$7)); } | |
| 1098 | } | |
| 1099 | } | |
| 1100 | if (direction == "ltr") { | |
| 1101 | if (order[0].level == 1 && (m = str.match(/^\s+/))) { | |
| 1102 | order[0].from = m[0].length; | |
| 1103 | order.unshift(new BidiSpan(0, 0, m[0].length)); | |
| 1104 | } | |
| 1105 | if (lst(order).level == 1 && (m = str.match(/\s+$/))) { | |
| 1106 | lst(order).to -= m[0].length; | |
| 1107 | order.push(new BidiSpan(0, len - m[0].length, len)); | |
| 1108 | } | |
| 1109 | } | |
| 1110 | ||
| 1111 | return direction == "rtl" ? order.reverse() : order | |
| 1112 | } | |
| 1113 | })(); | |
| 1114 | ||
| 1115 | // Get the bidi ordering for the given line (and cache it). Returns | |
| 1116 | // false for lines that are fully left-to-right, and an array of | |
| 1117 | // BidiSpan objects otherwise. | |
| 1118 | function getOrder(line, direction) { | |
| 1119 | var order = line.order; | |
| 1120 | if (order == null) { order = line.order = bidiOrdering(line.text, direction); } | |
| 1121 | return order | |
| 1122 | } | |
| 1123 | ||
| 1124 | // EVENT HANDLING | |
| 1125 | ||
| 1126 | // Lightweight event framework. on/off also work on DOM nodes, | |
| 1127 | // registering native DOM handlers. | |
| 1128 | ||
| 1129 | var noHandlers = []; | |
| 1130 | ||
| 1131 | var on = function(emitter, type, f) { | |
| 1132 | if (emitter.addEventListener) { | |
| 1133 | emitter.addEventListener(type, f, false); | |
| 1134 | } else if (emitter.attachEvent) { | |
| 1135 | emitter.attachEvent("on" + type, f); | |
| 1136 | } else { | |
| 1137 | var map$$1 = emitter._handlers || (emitter._handlers = {}); | |
| 1138 | map$$1[type] = (map$$1[type] || noHandlers).concat(f); | |
| 1139 | } | |
| 1140 | }; | |
| 1141 | ||
| 1142 | function getHandlers(emitter, type) { | |
| 1143 | return emitter._handlers && emitter._handlers[type] || noHandlers | |
| 1144 | } | |
| 1145 | ||
| 1146 | function off(emitter, type, f) { | |
| 1147 | if (emitter.removeEventListener) { | |
| 1148 | emitter.removeEventListener(type, f, false); | |
| 1149 | } else if (emitter.detachEvent) { | |
| 1150 | emitter.detachEvent("on" + type, f); | |
| 1151 | } else { | |
| 1152 | var map$$1 = emitter._handlers, arr = map$$1 && map$$1[type]; | |
| 1153 | if (arr) { | |
| 1154 | var index = indexOf(arr, f); | |
| 1155 | if (index > -1) | |
| 1156 | { map$$1[type] = arr.slice(0, index).concat(arr.slice(index + 1)); } | |
| 1157 | } | |
| 1158 | } | |
| 1159 | } | |
| 1160 | ||
| 1161 | function signal(emitter, type /*, values...*/) { | |
| 1162 | var handlers = getHandlers(emitter, type); | |
| 1163 | if (!handlers.length) { return } | |
| 1164 | var args = Array.prototype.slice.call(arguments, 2); | |
| 1165 | for (var i = 0; i < handlers.length; ++i) { handlers[i].apply(null, args); } | |
| 1166 | } | |
| 1167 | ||
| 1168 | // The DOM events that CodeMirror handles can be overridden by | |
| 1169 | // registering a (non-DOM) handler on the editor for the event name, | |
| 1170 | // and preventDefault-ing the event in that handler. | |
| 1171 | function signalDOMEvent(cm, e, override) { | |
| 1172 | if (typeof e == "string") | |
| 1173 | { e = {type: e, preventDefault: function() { this.defaultPrevented = true; }}; } | |
| 1174 | signal(cm, override || e.type, cm, e); | |
| 1175 | return e_defaultPrevented(e) || e.codemirrorIgnore | |
| 1176 | } | |
| 1177 | ||
| 1178 | function signalCursorActivity(cm) { | |
| 1179 | var arr = cm._handlers && cm._handlers.cursorActivity; | |
| 1180 | if (!arr) { return } | |
| 1181 | var set = cm.curOp.cursorActivityHandlers || (cm.curOp.cursorActivityHandlers = []); | |
| 1182 | for (var i = 0; i < arr.length; ++i) { if (indexOf(set, arr[i]) == -1) | |
| 1183 | { set.push(arr[i]); } } | |
| 1184 | } | |
| 1185 | ||
| 1186 | function hasHandler(emitter, type) { | |
| 1187 | return getHandlers(emitter, type).length > 0 | |
| 1188 | } | |
| 1189 | ||
| 1190 | // Add on and off methods to a constructor's prototype, to make | |
| 1191 | // registering events on such objects more convenient. | |
| 1192 | function eventMixin(ctor) { | |
| 1193 | ctor.prototype.on = function(type, f) {on(this, type, f);}; | |
| 1194 | ctor.prototype.off = function(type, f) {off(this, type, f);}; | |
| 1195 | } | |
| 1196 | ||
| 1197 | // Due to the fact that we still support jurassic IE versions, some | |
| 1198 | // compatibility wrappers are needed. | |
| 1199 | ||
| 1200 | function e_preventDefault(e) { | |
| 1201 | if (e.preventDefault) { e.preventDefault(); } | |
| 1202 | else { e.returnValue = false; } | |
| 1203 | } | |
| 1204 | function e_stopPropagation(e) { | |
| 1205 | if (e.stopPropagation) { e.stopPropagation(); } | |
| 1206 | else { e.cancelBubble = true; } | |
| 1207 | } | |
| 1208 | function e_defaultPrevented(e) { | |
| 1209 | return e.defaultPrevented != null ? e.defaultPrevented : e.returnValue == false | |
| 1210 | } | |
| 1211 | function e_stop(e) {e_preventDefault(e); e_stopPropagation(e);} | |
| 1212 | ||
| 1213 | function e_target(e) {return e.target || e.srcElement} | |
| 1214 | function e_button(e) { | |
| 1215 | var b = e.which; | |
| 1216 | if (b == null) { | |
| 1217 | if (e.button & 1) { b = 1; } | |
| 1218 | else if (e.button & 2) { b = 3; } | |
| 1219 | else if (e.button & 4) { b = 2; } | |
| 1220 | } | |
| 1221 | if (mac && e.ctrlKey && b == 1) { b = 3; } | |
| 1222 | return b | |
| 1223 | } | |
| 1224 | ||
| 1225 | // Detect drag-and-drop | |
| 1226 | var dragAndDrop = function() { | |
| 1227 | // There is *some* kind of drag-and-drop support in IE6-8, but I | |
| 1228 | // couldn't get it to work yet. | |
| 1229 | if (ie && ie_version < 9) { return false } | |
| 1230 | var div = elt('div'); | |
| 1231 | return "draggable" in div || "dragDrop" in div | |
| 1232 | }(); | |
| 1233 | ||
| 1234 | var zwspSupported; | |
| 1235 | function zeroWidthElement(measure) { | |
| 1236 | if (zwspSupported == null) { | |
| 1237 | var test = elt("span", "\u200b"); | |
| 1238 | removeChildrenAndAdd(measure, elt("span", [test, document.createTextNode("x")])); | |
| 1239 | if (measure.firstChild.offsetHeight != 0) | |
| 1240 | { zwspSupported = test.offsetWidth <= 1 && test.offsetHeight > 2 && !(ie && ie_version < 8); } | |
| 1241 | } | |
| 1242 | var node = zwspSupported ? elt("span", "\u200b") : | |
| 1243 | elt("span", "\u00a0", null, "display: inline-block; width: 1px; margin-right: -1px"); | |
| 1244 | node.setAttribute("cm-text", ""); | |
| 1245 | return node | |
| 1246 | } | |
| 1247 | ||
| 1248 | // Feature-detect IE's crummy client rect reporting for bidi text | |
| 1249 | var badBidiRects; | |
| 1250 | function hasBadBidiRects(measure) { | |
| 1251 | if (badBidiRects != null) { return badBidiRects } | |
| 1252 | var txt = removeChildrenAndAdd(measure, document.createTextNode("A\u062eA")); | |
| 1253 | var r0 = range(txt, 0, 1).getBoundingClientRect(); | |
| 1254 | var r1 = range(txt, 1, 2).getBoundingClientRect(); | |
| 1255 | removeChildren(measure); | |
| 1256 | if (!r0 || r0.left == r0.right) { return false } // Safari returns null in some cases (#2780) | |
| 1257 | return badBidiRects = (r1.right - r0.right < 3) | |
| 1258 | } | |
| 1259 | ||
| 1260 | // See if "".split is the broken IE version, if so, provide an | |
| 1261 | // alternative way to split lines. | |
| 1262 | var splitLinesAuto = "\n\nb".split(/\n/).length != 3 ? function (string) { | |
| 1263 | var pos = 0, result = [], l = string.length; | |
| 1264 | while (pos <= l) { | |
| 1265 | var nl = string.indexOf("\n", pos); | |
| 1266 | if (nl == -1) { nl = string.length; } | |
| 1267 | var line = string.slice(pos, string.charAt(nl - 1) == "\r" ? nl - 1 : nl); | |
| 1268 | var rt = line.indexOf("\r"); | |
| 1269 | if (rt != -1) { | |
| 1270 | result.push(line.slice(0, rt)); | |
| 1271 | pos += rt + 1; | |
| 1272 | } else { | |
| 1273 | result.push(line); | |
| 1274 | pos = nl + 1; | |
| 1275 | } | |
| 1276 | } | |
| 1277 | return result | |
| 1278 | } : function (string) { return string.split(/\r\n?|\n/); }; | |
| 1279 | ||
| 1280 | var hasSelection = window.getSelection ? function (te) { | |
| 1281 | try { return te.selectionStart != te.selectionEnd } | |
| 1282 | catch(e) { return false } | |
| 1283 | } : function (te) { | |
| 1284 | var range$$1; | |
| 1285 | try {range$$1 = te.ownerDocument.selection.createRange();} | |
| 1286 | catch(e) {} | |
| 1287 | if (!range$$1 || range$$1.parentElement() != te) { return false } | |
| 1288 | return range$$1.compareEndPoints("StartToEnd", range$$1) != 0 | |
| 1289 | }; | |
| 1290 | ||
| 1291 | var hasCopyEvent = (function () { | |
| 1292 | var e = elt("div"); | |
| 1293 | if ("oncopy" in e) { return true } | |
| 1294 | e.setAttribute("oncopy", "return;"); | |
| 1295 | return typeof e.oncopy == "function" | |
| 1296 | })(); | |
| 1297 | ||
| 1298 | var badZoomedRects = null; | |
| 1299 | function hasBadZoomedRects(measure) { | |
| 1300 | if (badZoomedRects != null) { return badZoomedRects } | |
| 1301 | var node = removeChildrenAndAdd(measure, elt("span", "x")); | |
| 1302 | var normal = node.getBoundingClientRect(); | |
| 1303 | var fromRange = range(node, 0, 1).getBoundingClientRect(); | |
| 1304 | return badZoomedRects = Math.abs(normal.left - fromRange.left) > 1 | |
| 1305 | } | |
| 1306 | ||
| 1307 | // Known modes, by name and by MIME | |
| 1308 | var modes = {}, mimeModes = {}; | |
| 1309 | ||
| 1310 | // Extra arguments are stored as the mode's dependencies, which is | |
| 1311 | // used by (legacy) mechanisms like loadmode.js to automatically | |
| 1312 | // load a mode. (Preferred mechanism is the require/define calls.) | |
| 1313 | function defineMode(name, mode) { | |
| 1314 | if (arguments.length > 2) | |
| 1315 | { mode.dependencies = Array.prototype.slice.call(arguments, 2); } | |
| 1316 | modes[name] = mode; | |
| 1317 | } | |
| 1318 | ||
| 1319 | function defineMIME(mime, spec) { | |
| 1320 | mimeModes[mime] = spec; | |
| 1321 | } | |
| 1322 | ||
| 1323 | // Given a MIME type, a {name, ...options} config object, or a name | |
| 1324 | // string, return a mode config object. | |
| 1325 | function resolveMode(spec) { | |
| 1326 | if (typeof spec == "string" && mimeModes.hasOwnProperty(spec)) { | |
| 1327 | spec = mimeModes[spec]; | |
| 1328 | } else if (spec && typeof spec.name == "string" && mimeModes.hasOwnProperty(spec.name)) { | |
| 1329 | var found = mimeModes[spec.name]; | |
| 1330 | if (typeof found == "string") { found = {name: found}; } | |
| 1331 | spec = createObj(found, spec); | |
| 1332 | spec.name = found.name; | |
| 1333 | } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+xml$/.test(spec)) { | |
| 1334 | return resolveMode("application/xml") | |
| 1335 | } else if (typeof spec == "string" && /^[\w\-]+\/[\w\-]+\+json$/.test(spec)) { | |
| 1336 | return resolveMode("application/json") | |
| 1337 | } | |
| 1338 | if (typeof spec == "string") { return {name: spec} } | |
| 1339 | else { return spec || {name: "null"} } | |
| 1340 | } | |
| 1341 | ||
| 1342 | // Given a mode spec (anything that resolveMode accepts), find and | |
| 1343 | // initialize an actual mode object. | |
| 1344 | function getMode(options, spec) { | |
| 1345 | spec = resolveMode(spec); | |
| 1346 | var mfactory = modes[spec.name]; | |
| 1347 | if (!mfactory) { return getMode(options, "text/plain") } | |
| 1348 | var modeObj = mfactory(options, spec); | |
| 1349 | if (modeExtensions.hasOwnProperty(spec.name)) { | |
| 1350 | var exts = modeExtensions[spec.name]; | |
| 1351 | for (var prop in exts) { | |
| 1352 | if (!exts.hasOwnProperty(prop)) { continue } | |
| 1353 | if (modeObj.hasOwnProperty(prop)) { modeObj["_" + prop] = modeObj[prop]; } | |
| 1354 | modeObj[prop] = exts[prop]; | |
| 1355 | } | |
| 1356 | } | |
| 1357 | modeObj.name = spec.name; | |
| 1358 | if (spec.helperType) { modeObj.helperType = spec.helperType; } | |
| 1359 | if (spec.modeProps) { for (var prop$1 in spec.modeProps) | |
| 1360 | { modeObj[prop$1] = spec.modeProps[prop$1]; } } | |
| 1361 | ||
| 1362 | return modeObj | |
| 1363 | } | |
| 1364 | ||
| 1365 | // This can be used to attach properties to mode objects from | |
| 1366 | // outside the actual mode definition. | |
| 1367 | var modeExtensions = {}; | |
| 1368 | function extendMode(mode, properties) { | |
| 1369 | var exts = modeExtensions.hasOwnProperty(mode) ? modeExtensions[mode] : (modeExtensions[mode] = {}); | |
| 1370 | copyObj(properties, exts); | |
| 1371 | } | |
| 1372 | ||
| 1373 | function copyState(mode, state) { | |
| 1374 | if (state === true) { return state } | |
| 1375 | if (mode.copyState) { return mode.copyState(state) } | |
| 1376 | var nstate = {}; | |
| 1377 | for (var n in state) { | |
| 1378 | var val = state[n]; | |
| 1379 | if (val instanceof Array) { val = val.concat([]); } | |
| 1380 | nstate[n] = val; | |
| 1381 | } | |
| 1382 | return nstate | |
| 1383 | } | |
| 1384 | ||
| 1385 | // Given a mode and a state (for that mode), find the inner mode and | |
| 1386 | // state at the position that the state refers to. | |
| 1387 | function innerMode(mode, state) { | |
| 1388 | var info; | |
| 1389 | while (mode.innerMode) { | |
| 1390 | info = mode.innerMode(state); | |
| 1391 | if (!info || info.mode == mode) { break } | |
| 1392 | state = info.state; | |
| 1393 | mode = info.mode; | |
| 1394 | } | |
| 1395 | return info || {mode: mode, state: state} | |
| 1396 | } | |
| 1397 | ||
| 1398 | function startState(mode, a1, a2) { | |
| 1399 | return mode.startState ? mode.startState(a1, a2) : true | |
| 1400 | } | |
| 1401 | ||
| 1402 | // STRING STREAM | |
| 1403 | ||
| 1404 | // Fed to the mode parsers, provides helper functions to make | |
| 1405 | // parsers more succinct. | |
| 1406 | ||
| 1407 | var StringStream = function(string, tabSize, lineOracle) { | |
| 1408 | this.pos = this.start = 0; | |
| 1409 | this.string = string; | |
| 1410 | this.tabSize = tabSize || 8; | |
| 1411 | this.lastColumnPos = this.lastColumnValue = 0; | |
| 1412 | this.lineStart = 0; | |
| 1413 | this.lineOracle = lineOracle; | |
| 1414 | }; | |
| 1415 | ||
| 1416 | StringStream.prototype.eol = function () {return this.pos >= this.string.length}; | |
| 1417 | StringStream.prototype.sol = function () {return this.pos == this.lineStart}; | |
| 1418 | StringStream.prototype.peek = function () {return this.string.charAt(this.pos) || undefined}; | |
| 1419 | StringStream.prototype.next = function () { | |
| 1420 | if (this.pos < this.string.length) | |
| 1421 | { return this.string.charAt(this.pos++) } | |
| 1422 | }; | |
| 1423 | StringStream.prototype.eat = function (match) { | |
| 1424 | var ch = this.string.charAt(this.pos); | |
| 1425 | var ok; | |
| 1426 | if (typeof match == "string") { ok = ch == match; } | |
| 1427 | else { ok = ch && (match.test ? match.test(ch) : match(ch)); } | |
| 1428 | if (ok) {++this.pos; return ch} | |
| 1429 | }; | |
| 1430 | StringStream.prototype.eatWhile = function (match) { | |
| 1431 | var start = this.pos; | |
| 1432 | while (this.eat(match)){} | |
| 1433 | return this.pos > start | |
| 1434 | }; | |
| 1435 | StringStream.prototype.eatSpace = function () { | |
| 1436 | var this$1 = this; | |
| 1437 | ||
| 1438 | var start = this.pos; | |
| 1439 | while (/[\s\u00a0]/.test(this.string.charAt(this.pos))) { ++this$1.pos; } | |
| 1440 | return this.pos > start | |
| 1441 | }; | |
| 1442 | StringStream.prototype.skipToEnd = function () {this.pos = this.string.length;}; | |
| 1443 | StringStream.prototype.skipTo = function (ch) { | |
| 1444 | var found = this.string.indexOf(ch, this.pos); | |
| 1445 | if (found > -1) {this.pos = found; return true} | |
| 1446 | }; | |
| 1447 | StringStream.prototype.backUp = function (n) {this.pos -= n;}; | |
| 1448 | StringStream.prototype.column = function () { | |
| 1449 | if (this.lastColumnPos < this.start) { | |
| 1450 | this.lastColumnValue = countColumn(this.string, this.start, this.tabSize, this.lastColumnPos, this.lastColumnValue); | |
| 1451 | this.lastColumnPos = this.start; | |
| 1452 | } | |
| 1453 | return this.lastColumnValue - (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) | |
| 1454 | }; | |
| 1455 | StringStream.prototype.indentation = function () { | |
| 1456 | return countColumn(this.string, null, this.tabSize) - | |
| 1457 | (this.lineStart ? countColumn(this.string, this.lineStart, this.tabSize) : 0) | |
| 1458 | }; | |
| 1459 | StringStream.prototype.match = function (pattern, consume, caseInsensitive) { | |
| 1460 | if (typeof pattern == "string") { | |
| 1461 | var cased = function (str) { return caseInsensitive ? str.toLowerCase() : str; }; | |
| 1462 | var substr = this.string.substr(this.pos, pattern.length); | |
| 1463 | if (cased(substr) == cased(pattern)) { | |
| 1464 | if (consume !== false) { this.pos += pattern.length; } | |
| 1465 | return true | |
| 1466 | } | |
| 1467 | } else { | |
| 1468 | var match = this.string.slice(this.pos).match(pattern); | |
| 1469 | if (match && match.index > 0) { return null } | |
| 1470 | if (match && consume !== false) { this.pos += match[0].length; } | |
| 1471 | return match | |
| 1472 | } | |
| 1473 | }; | |
| 1474 | StringStream.prototype.current = function (){return this.string.slice(this.start, this.pos)}; | |
| 1475 | StringStream.prototype.hideFirstChars = function (n, inner) { | |
| 1476 | this.lineStart += n; | |
| 1477 | try { return inner() } | |
| 1478 | finally { this.lineStart -= n; } | |
| 1479 | }; | |
| 1480 | StringStream.prototype.lookAhead = function (n) { | |
| 1481 | var oracle = this.lineOracle; | |
| 1482 | return oracle && oracle.lookAhead(n) | |
| 1483 | }; | |
| 1484 | StringStream.prototype.baseToken = function () { | |
| 1485 | var oracle = this.lineOracle; | |
| 1486 | return oracle && oracle.baseToken(this.pos) | |
| 1487 | }; | |
| 1488 | ||
| 1489 | var SavedContext = function(state, lookAhead) { | |
| 1490 | this.state = state; | |
| 1491 | this.lookAhead = lookAhead; | |
| 1492 | }; | |
| 1493 | ||
| 1494 | var Context = function(doc, state, line, lookAhead) { | |
| 1495 | this.state = state; | |
| 1496 | this.doc = doc; | |
| 1497 | this.line = line; | |
| 1498 | this.maxLookAhead = lookAhead || 0; | |
| 1499 | this.baseTokens = null; | |
| 1500 | this.baseTokenPos = 1; | |
| 1501 | }; | |
| 1502 | ||
| 1503 | Context.prototype.lookAhead = function (n) { | |
| 1504 | var line = this.doc.getLine(this.line + n); | |
| 1505 | if (line != null && n > this.maxLookAhead) { this.maxLookAhead = n; } | |
| 1506 | return line | |
| 1507 | }; | |
| 1508 | ||
| 1509 | Context.prototype.baseToken = function (n) { | |
| 1510 | var this$1 = this; | |
| 1511 | ||
| 1512 | if (!this.baseTokens) { return null } | |
| 1513 | while (this.baseTokens[this.baseTokenPos] <= n) | |
| 1514 | { this$1.baseTokenPos += 2; } | |
| 1515 | var type = this.baseTokens[this.baseTokenPos + 1]; | |
| 1516 | return {type: type && type.replace(/( |^)overlay .*/, ""), | |
| 1517 | size: this.baseTokens[this.baseTokenPos] - n} | |
| 1518 | }; | |
| 1519 | ||
| 1520 | Context.prototype.nextLine = function () { | |
| 1521 | this.line++; | |
| 1522 | if (this.maxLookAhead > 0) { this.maxLookAhead--; } | |
| 1523 | }; | |
| 1524 | ||
| 1525 | Context.fromSaved = function (doc, saved, line) { | |
| 1526 | if (saved instanceof SavedContext) | |
| 1527 | { return new Context(doc, copyState(doc.mode, saved.state), line, saved.lookAhead) } | |
| 1528 | else | |
| 1529 | { return new Context(doc, copyState(doc.mode, saved), line) } | |
| 1530 | }; | |
| 1531 | ||
| 1532 | Context.prototype.save = function (copy) { | |
| 1533 | var state = copy !== false ? copyState(this.doc.mode, this.state) : this.state; | |
| 1534 | return this.maxLookAhead > 0 ? new SavedContext(state, this.maxLookAhead) : state | |
| 1535 | }; | |
| 1536 | ||
| 1537 | ||
| 1538 | // Compute a style array (an array starting with a mode generation | |
| 1539 | // -- for invalidation -- followed by pairs of end positions and | |
| 1540 | // style strings), which is used to highlight the tokens on the | |
| 1541 | // line. | |
| 1542 | function highlightLine(cm, line, context, forceToEnd) { | |
| 1543 | // A styles array always starts with a number identifying the | |
| 1544 | // mode/overlays that it is based on (for easy invalidation). | |
| 1545 | var st = [cm.state.modeGen], lineClasses = {}; | |
| 1546 | // Compute the base array of styles | |
| 1547 | runMode(cm, line.text, cm.doc.mode, context, function (end, style) { return st.push(end, style); }, | |
| 1548 | lineClasses, forceToEnd); | |
| 1549 | var state = context.state; | |
| 1550 | ||
| 1551 | // Run overlays, adjust style array. | |
| 1552 | var loop = function ( o ) { | |
| 1553 | context.baseTokens = st; | |
| 1554 | var overlay = cm.state.overlays[o], i = 1, at = 0; | |
| 1555 | context.state = true; | |
| 1556 | runMode(cm, line.text, overlay.mode, context, function (end, style) { | |
| 1557 | var start = i; | |
| 1558 | // Ensure there's a token end at the current position, and that i points at it | |
| 1559 | while (at < end) { | |
| 1560 | var i_end = st[i]; | |
| 1561 | if (i_end > end) | |
| 1562 | { st.splice(i, 1, end, st[i+1], i_end); } | |
| 1563 | i += 2; | |
| 1564 | at = Math.min(end, i_end); | |
| 1565 | } | |
| 1566 | if (!style) { return } | |
| 1567 | if (overlay.opaque) { | |
| 1568 | st.splice(start, i - start, end, "overlay " + style); | |
| 1569 | i = start + 2; | |
| 1570 | } else { | |
| 1571 | for (; start < i; start += 2) { | |
| 1572 | var cur = st[start+1]; | |
| 1573 | st[start+1] = (cur ? cur + " " : "") + "overlay " + style; | |
| 1574 | } | |
| 1575 | } | |
| 1576 | }, lineClasses); | |
| 1577 | context.state = state; | |
| 1578 | context.baseTokens = null; | |
| 1579 | context.baseTokenPos = 1; | |
| 1580 | }; | |
| 1581 | ||
| 1582 | for (var o = 0; o < cm.state.overlays.length; ++o) loop( o ); | |
| 1583 | ||
| 1584 | return {styles: st, classes: lineClasses.bgClass || lineClasses.textClass ? lineClasses : null} | |
| 1585 | } | |
| 1586 | ||
| 1587 | function getLineStyles(cm, line, updateFrontier) { | |
| 1588 | if (!line.styles || line.styles[0] != cm.state.modeGen) { | |
| 1589 | var context = getContextBefore(cm, lineNo(line)); | |
| 1590 | var resetState = line.text.length > cm.options.maxHighlightLength && copyState(cm.doc.mode, context.state); | |
| 1591 | var result = highlightLine(cm, line, context); | |
| 1592 | if (resetState) { context.state = resetState; } | |
| 1593 | line.stateAfter = context.save(!resetState); | |
| 1594 | line.styles = result.styles; | |
| 1595 | if (result.classes) { line.styleClasses = result.classes; } | |
| 1596 | else if (line.styleClasses) { line.styleClasses = null; } | |
| 1597 | if (updateFrontier === cm.doc.highlightFrontier) | |
| 1598 | { cm.doc.modeFrontier = Math.max(cm.doc.modeFrontier, ++cm.doc.highlightFrontier); } | |
| 1599 | } | |
| 1600 | return line.styles | |
| 1601 | } | |
| 1602 | ||
| 1603 | function getContextBefore(cm, n, precise) { | |
| 1604 | var doc = cm.doc, display = cm.display; | |
| 1605 | if (!doc.mode.startState) { return new Context(doc, true, n) } | |
| 1606 | var start = findStartLine(cm, n, precise); | |
| 1607 | var saved = start > doc.first && getLine(doc, start - 1).stateAfter; | |
| 1608 | var context = saved ? Context.fromSaved(doc, saved, start) : new Context(doc, startState(doc.mode), start); | |
| 1609 | ||
| 1610 | doc.iter(start, n, function (line) { | |
| 1611 | processLine(cm, line.text, context); | |
| 1612 | var pos = context.line; | |
| 1613 | line.stateAfter = pos == n - 1 || pos % 5 == 0 || pos >= display.viewFrom && pos < display.viewTo ? context.save() : null; | |
| 1614 | context.nextLine(); | |
| 1615 | }); | |
| 1616 | if (precise) { doc.modeFrontier = context.line; } | |
| 1617 | return context | |
| 1618 | } | |
| 1619 | ||
| 1620 | // Lightweight form of highlight -- proceed over this line and | |
| 1621 | // update state, but don't save a style array. Used for lines that | |
| 1622 | // aren't currently visible. | |
| 1623 | function processLine(cm, text, context, startAt) { | |
| 1624 | var mode = cm.doc.mode; | |
| 1625 | var stream = new StringStream(text, cm.options.tabSize, context); | |
| 1626 | stream.start = stream.pos = startAt || 0; | |
| 1627 | if (text == "") { callBlankLine(mode, context.state); } | |
| 1628 | while (!stream.eol()) { | |
| 1629 | readToken(mode, stream, context.state); | |
| 1630 | stream.start = stream.pos; | |
| 1631 | } | |
| 1632 | } | |
| 1633 | ||
| 1634 | function callBlankLine(mode, state) { | |
| 1635 | if (mode.blankLine) { return mode.blankLine(state) } | |
| 1636 | if (!mode.innerMode) { return } | |
| 1637 | var inner = innerMode(mode, state); | |
| 1638 | if (inner.mode.blankLine) { return inner.mode.blankLine(inner.state) } | |
| 1639 | } | |
| 1640 | ||
| 1641 | function readToken(mode, stream, state, inner) { | |
| 1642 | for (var i = 0; i < 10; i++) { | |
| 1643 | if (inner) { inner[0] = innerMode(mode, state).mode; } | |
| 1644 | var style = mode.token(stream, state); | |
| 1645 | if (stream.pos > stream.start) { return style } | |
| 1646 | } | |
| 1647 | throw new Error("Mode " + mode.name + " failed to advance stream.") | |
| 1648 | } | |
| 1649 | ||
| 1650 | var Token = function(stream, type, state) { | |
| 1651 | this.start = stream.start; this.end = stream.pos; | |
| 1652 | this.string = stream.current(); | |
| 1653 | this.type = type || null; | |
| 1654 | this.state = state; | |
| 1655 | }; | |
| 1656 | ||
| 1657 | // Utility for getTokenAt and getLineTokens | |
| 1658 | function takeToken(cm, pos, precise, asArray) { | |
| 1659 | var doc = cm.doc, mode = doc.mode, style; | |
| 1660 | pos = clipPos(doc, pos); | |
| 1661 | var line = getLine(doc, pos.line), context = getContextBefore(cm, pos.line, precise); | |
| 1662 | var stream = new StringStream(line.text, cm.options.tabSize, context), tokens; | |
| 1663 | if (asArray) { tokens = []; } | |
| 1664 | while ((asArray || stream.pos < pos.ch) && !stream.eol()) { | |
| 1665 | stream.start = stream.pos; | |
| 1666 | style = readToken(mode, stream, context.state); | |
| 1667 | if (asArray) { tokens.push(new Token(stream, style, copyState(doc.mode, context.state))); } | |
| 1668 | } | |
| 1669 | return asArray ? tokens : new Token(stream, style, context.state) | |
| 1670 | } | |
| 1671 | ||
| 1672 | function extractLineClasses(type, output) { | |
| 1673 | if (type) { for (;;) { | |
| 1674 | var lineClass = type.match(/(?:^|\s+)line-(background-)?(\S+)/); | |
| 1675 | if (!lineClass) { break } | |
| 1676 | type = type.slice(0, lineClass.index) + type.slice(lineClass.index + lineClass[0].length); | |
| 1677 | var prop = lineClass[1] ? "bgClass" : "textClass"; | |
| 1678 | if (output[prop] == null) | |
| 1679 | { output[prop] = lineClass[2]; } | |
| 1680 | else if (!(new RegExp("(?:^|\s)" + lineClass[2] + "(?:$|\s)")).test(output[prop])) | |
| 1681 | { output[prop] += " " + lineClass[2]; } | |
| 1682 | } } | |
| 1683 | return type | |
| 1684 | } | |
| 1685 | ||
| 1686 | // Run the given mode's parser over a line, calling f for each token. | |
| 1687 | function runMode(cm, text, mode, context, f, lineClasses, forceToEnd) { | |
| 1688 | var flattenSpans = mode.flattenSpans; | |
| 1689 | if (flattenSpans == null) { flattenSpans = cm.options.flattenSpans; } | |
| 1690 | var curStart = 0, curStyle = null; | |
| 1691 | var stream = new StringStream(text, cm.options.tabSize, context), style; | |
| 1692 | var inner = cm.options.addModeClass && [null]; | |
| 1693 | if (text == "") { extractLineClasses(callBlankLine(mode, context.state), lineClasses); } | |
| 1694 | while (!stream.eol()) { | |
| 1695 | if (stream.pos > cm.options.maxHighlightLength) { | |
| 1696 | flattenSpans = false; | |
| 1697 | if (forceToEnd) { processLine(cm, text, context, stream.pos); } | |
| 1698 | stream.pos = text.length; | |
| 1699 | style = null; | |
| 1700 | } else { | |
| 1701 | style = extractLineClasses(readToken(mode, stream, context.state, inner), lineClasses); | |
| 1702 | } | |
| 1703 | if (inner) { | |
| 1704 | var mName = inner[0].name; | |
| 1705 | if (mName) { style = "m-" + (style ? mName + " " + style : mName); } | |
| 1706 | } | |
| 1707 | if (!flattenSpans || curStyle != style) { | |
| 1708 | while (curStart < stream.start) { | |
| 1709 | curStart = Math.min(stream.start, curStart + 5000); | |
| 1710 | f(curStart, curStyle); | |
| 1711 | } | |
| 1712 | curStyle = style; | |
| 1713 | } | |
| 1714 | stream.start = stream.pos; | |
| 1715 | } | |
| 1716 | while (curStart < stream.pos) { | |
| 1717 | // Webkit seems to refuse to render text nodes longer than 57444 | |
| 1718 | // characters, and returns inaccurate measurements in nodes | |
| 1719 | // starting around 5000 chars. | |
| 1720 | var pos = Math.min(stream.pos, curStart + 5000); | |
| 1721 | f(pos, curStyle); | |
| 1722 | curStart = pos; | |
| 1723 | } | |
| 1724 | } | |
| 1725 | ||
| 1726 | // Finds the line to start with when starting a parse. Tries to | |
| 1727 | // find a line with a stateAfter, so that it can start with a | |
| 1728 | // valid state. If that fails, it returns the line with the | |
| 1729 | // smallest indentation, which tends to need the least context to | |
| 1730 | // parse correctly. | |
| 1731 | function findStartLine(cm, n, precise) { | |
| 1732 | var minindent, minline, doc = cm.doc; | |
| 1733 | var lim = precise ? -1 : n - (cm.doc.mode.innerMode ? 1000 : 100); | |
| 1734 | for (var search = n; search > lim; --search) { | |
| 1735 | if (search <= doc.first) { return doc.first } | |
| 1736 | var line = getLine(doc, search - 1), after = line.stateAfter; | |
| 1737 | if (after && (!precise || search + (after instanceof SavedContext ? after.lookAhead : 0) <= doc.modeFrontier)) | |
| 1738 | { return search } | |
| 1739 | var indented = countColumn(line.text, null, cm.options.tabSize); | |
| 1740 | if (minline == null || minindent > indented) { | |
| 1741 | minline = search - 1; | |
| 1742 | minindent = indented; | |
| 1743 | } | |
| 1744 | } | |
| 1745 | return minline | |
| 1746 | } | |
| 1747 | ||
| 1748 | function retreatFrontier(doc, n) { | |
| 1749 | doc.modeFrontier = Math.min(doc.modeFrontier, n); | |
| 1750 | if (doc.highlightFrontier < n - 10) { return } | |
| 1751 | var start = doc.first; | |
| 1752 | for (var line = n - 1; line > start; line--) { | |
| 1753 | var saved = getLine(doc, line).stateAfter; | |
| 1754 | // change is on 3 | |
| 1755 | // state on line 1 looked ahead 2 -- so saw 3 | |
| 1756 | // test 1 + 2 < 3 should cover this | |
| 1757 | if (saved && (!(saved instanceof SavedContext) || line + saved.lookAhead < n)) { | |
| 1758 | start = line + 1; | |
| 1759 | break | |
| 1760 | } | |
| 1761 | } | |
| 1762 | doc.highlightFrontier = Math.min(doc.highlightFrontier, start); | |
| 1763 | } | |
| 1764 | ||
| 1765 | // LINE DATA STRUCTURE | |
| 1766 | ||
| 1767 | // Line objects. These hold state related to a line, including | |
| 1768 | // highlighting info (the styles array). | |
| 1769 | var Line = function(text, markedSpans, estimateHeight) { | |
| 1770 | this.text = text; | |
| 1771 | attachMarkedSpans(this, markedSpans); | |
| 1772 | this.height = estimateHeight ? estimateHeight(this) : 1; | |
| 1773 | }; | |
| 1774 | ||
| 1775 | Line.prototype.lineNo = function () { return lineNo(this) }; | |
| 1776 | eventMixin(Line); | |
| 1777 | ||
| 1778 | // Change the content (text, markers) of a line. Automatically | |
| 1779 | // invalidates cached information and tries to re-estimate the | |
| 1780 | // line's height. | |
| 1781 | function updateLine(line, text, markedSpans, estimateHeight) { | |
| 1782 | line.text = text; | |
| 1783 | if (line.stateAfter) { line.stateAfter = null; } | |
| 1784 | if (line.styles) { line.styles = null; } | |
| 1785 | if (line.order != null) { line.order = null; } | |
| 1786 | detachMarkedSpans(line); | |
| 1787 | attachMarkedSpans(line, markedSpans); | |
| 1788 | var estHeight = estimateHeight ? estimateHeight(line) : 1; | |
| 1789 | if (estHeight != line.height) { updateLineHeight(line, estHeight); } | |
| 1790 | } | |
| 1791 | ||
| 1792 | // Detach a line from the document tree and its markers. | |
| 1793 | function cleanUpLine(line) { | |
| 1794 | line.parent = null; | |
| 1795 | detachMarkedSpans(line); | |
| 1796 | } | |
| 1797 | ||
| 1798 | // Convert a style as returned by a mode (either null, or a string | |
| 1799 | // containing one or more styles) to a CSS style. This is cached, | |
| 1800 | // and also looks for line-wide styles. | |
| 1801 | var styleToClassCache = {}, styleToClassCacheWithMode = {}; | |
| 1802 | function interpretTokenStyle(style, options) { | |
| 1803 | if (!style || /^\s*$/.test(style)) { return null } | |
| 1804 | var cache = options.addModeClass ? styleToClassCacheWithMode : styleToClassCache; | |
| 1805 | return cache[style] || | |
| 1806 | (cache[style] = style.replace(/\S+/g, "cm-$&")) | |
| 1807 | } | |
| 1808 | ||
| 1809 | // Render the DOM representation of the text of a line. Also builds | |
| 1810 | // up a 'line map', which points at the DOM nodes that represent | |
| 1811 | // specific stretches of text, and is used by the measuring code. | |
| 1812 | // The returned object contains the DOM node, this map, and | |
| 1813 | // information about line-wide styles that were set by the mode. | |
| 1814 | function buildLineContent(cm, lineView) { | |
| 1815 | // The padding-right forces the element to have a 'border', which | |
| 1816 | // is needed on Webkit to be able to get line-level bounding | |
| 1817 | // rectangles for it (in measureChar). | |
| 1818 | var content = eltP("span", null, null, webkit ? "padding-right: .1px" : null); | |
| 1819 | var builder = {pre: eltP("pre", [content], "CodeMirror-line"), content: content, | |
| 1820 | col: 0, pos: 0, cm: cm, | |
| 1821 | trailingSpace: false, | |
| 1822 | splitSpaces: cm.getOption("lineWrapping")}; | |
| 1823 | lineView.measure = {}; | |
| 1824 | ||
| 1825 | // Iterate over the logical lines that make up this visual line. | |
| 1826 | for (var i = 0; i <= (lineView.rest ? lineView.rest.length : 0); i++) { | |
| 1827 | var line = i ? lineView.rest[i - 1] : lineView.line, order = (void 0); | |
| 1828 | builder.pos = 0; | |
| 1829 | builder.addToken = buildToken; | |
| 1830 | // Optionally wire in some hacks into the token-rendering | |
| 1831 | // algorithm, to deal with browser quirks. | |
| 1832 | if (hasBadBidiRects(cm.display.measure) && (order = getOrder(line, cm.doc.direction))) | |
| 1833 | { builder.addToken = buildTokenBadBidi(builder.addToken, order); } | |
| 1834 | builder.map = []; | |
| 1835 | var allowFrontierUpdate = lineView != cm.display.externalMeasured && lineNo(line); | |
| 1836 | insertLineContent(line, builder, getLineStyles(cm, line, allowFrontierUpdate)); | |
| 1837 | if (line.styleClasses) { | |
| 1838 | if (line.styleClasses.bgClass) | |
| 1839 | { builder.bgClass = joinClasses(line.styleClasses.bgClass, builder.bgClass || ""); } | |
| 1840 | if (line.styleClasses.textClass) | |
| 1841 | { builder.textClass = joinClasses(line.styleClasses.textClass, builder.textClass || ""); } | |
| 1842 | } | |
| 1843 | ||
| 1844 | // Ensure at least a single node is present, for measuring. | |
| 1845 | if (builder.map.length == 0) | |
| 1846 | { builder.map.push(0, 0, builder.content.appendChild(zeroWidthElement(cm.display.measure))); } | |
| 1847 | ||
| 1848 | // Store the map and a cache object for the current logical line | |
| 1849 | if (i == 0) { | |
| 1850 | lineView.measure.map = builder.map; | |
| 1851 | lineView.measure.cache = {}; | |
| 1852 | } else { | |
| 1853 | (lineView.measure.maps || (lineView.measure.maps = [])).push(builder.map) | |
| 1854 | ;(lineView.measure.caches || (lineView.measure.caches = [])).push({}); | |
| 1855 | } | |
| 1856 | } | |
| 1857 | ||
| 1858 | // See issue #2901 | |
| 1859 | if (webkit) { | |
| 1860 | var last = builder.content.lastChild; | |
| 1861 | if (/\bcm-tab\b/.test(last.className) || (last.querySelector && last.querySelector(".cm-tab"))) | |
| 1862 | { builder.content.className = "cm-tab-wrap-hack"; } | |
| 1863 | } | |
| 1864 | ||
| 1865 | signal(cm, "renderLine", cm, lineView.line, builder.pre); | |
| 1866 | if (builder.pre.className) | |
| 1867 | { builder.textClass = joinClasses(builder.pre.className, builder.textClass || ""); } | |
| 1868 | ||
| 1869 | return builder | |
| 1870 | } | |
| 1871 | ||
| 1872 | function defaultSpecialCharPlaceholder(ch) { | |
| 1873 | var token = elt("span", "\u2022", "cm-invalidchar"); | |
| 1874 | token.title = "\\u" + ch.charCodeAt(0).toString(16); | |
| 1875 | token.setAttribute("aria-label", token.title); | |
| 1876 | return token | |
| 1877 | } | |
| 1878 | ||
| 1879 | // Build up the DOM representation for a single token, and add it to | |
| 1880 | // the line map. Takes care to render special characters separately. | |
| 1881 | function buildToken(builder, text, style, startStyle, endStyle, title, css) { | |
| 1882 | if (!text) { return } | |
| 1883 | var displayText = builder.splitSpaces ? splitSpaces(text, builder.trailingSpace) : text; | |
| 1884 | var special = builder.cm.state.specialChars, mustWrap = false; | |
| 1885 | var content; | |
| 1886 | if (!special.test(text)) { | |
| 1887 | builder.col += text.length; | |
| 1888 | content = document.createTextNode(displayText); | |
| 1889 | builder.map.push(builder.pos, builder.pos + text.length, content); | |
| 1890 | if (ie && ie_version < 9) { mustWrap = true; } | |
| 1891 | builder.pos += text.length; | |
| 1892 | } else { | |
| 1893 | content = document.createDocumentFragment(); | |
| 1894 | var pos = 0; | |
| 1895 | while (true) { | |
| 1896 | special.lastIndex = pos; | |
| 1897 | var m = special.exec(text); | |
| 1898 | var skipped = m ? m.index - pos : text.length - pos; | |
| 1899 | if (skipped) { | |
| 1900 | var txt = document.createTextNode(displayText.slice(pos, pos + skipped)); | |
| 1901 | if (ie && ie_version < 9) { content.appendChild(elt("span", [txt])); } | |
| 1902 | else { content.appendChild(txt); } | |
| 1903 | builder.map.push(builder.pos, builder.pos + skipped, txt); | |
| 1904 | builder.col += skipped; | |
| 1905 | builder.pos += skipped; | |
| 1906 | } | |
| 1907 | if (!m) { break } | |
| 1908 | pos += skipped + 1; | |
| 1909 | var txt$1 = (void 0); | |
| 1910 | if (m[0] == "\t") { | |
| 1911 | var tabSize = builder.cm.options.tabSize, tabWidth = tabSize - builder.col % tabSize; | |
| 1912 | txt$1 = content.appendChild(elt("span", spaceStr(tabWidth), "cm-tab")); | |
| 1913 | txt$1.setAttribute("role", "presentation"); | |
| 1914 | txt$1.setAttribute("cm-text", "\t"); | |
| 1915 | builder.col += tabWidth; | |
| 1916 | } else if (m[0] == "\r" || m[0] == "\n") { | |
| 1917 | txt$1 = content.appendChild(elt("span", m[0] == "\r" ? "\u240d" : "\u2424", "cm-invalidchar")); | |
| 1918 | txt$1.setAttribute("cm-text", m[0]); | |
| 1919 | builder.col += 1; | |
| 1920 | } else { | |
| 1921 | txt$1 = builder.cm.options.specialCharPlaceholder(m[0]); | |
| 1922 | txt$1.setAttribute("cm-text", m[0]); | |
| 1923 | if (ie && ie_version < 9) { content.appendChild(elt("span", [txt$1])); } | |
| 1924 | else { content.appendChild(txt$1); } | |
| 1925 | builder.col += 1; | |
| 1926 | } | |
| 1927 | builder.map.push(builder.pos, builder.pos + 1, txt$1); | |
| 1928 | builder.pos++; | |
| 1929 | } | |
| 1930 | } | |
| 1931 | builder.trailingSpace = displayText.charCodeAt(text.length - 1) == 32; | |
| 1932 | if (style || startStyle || endStyle || mustWrap || css) { | |
| 1933 | var fullStyle = style || ""; | |
| 1934 | if (startStyle) { fullStyle += startStyle; } | |
| 1935 | if (endStyle) { fullStyle += endStyle; } | |
| 1936 | var token = elt("span", [content], fullStyle, css); | |
| 1937 | if (title) { token.title = title; } | |
| 1938 | return builder.content.appendChild(token) | |
| 1939 | } | |
| 1940 | builder.content.appendChild(content); | |
| 1941 | } | |
| 1942 | ||
| 1943 | // Change some spaces to NBSP to prevent the browser from collapsing | |
| 1944 | // trailing spaces at the end of a line when rendering text (issue #1362). | |
| 1945 | function splitSpaces(text, trailingBefore) { | |
| 1946 | if (text.length > 1 && !/ /.test(text)) { return text } | |
| 1947 | var spaceBefore = trailingBefore, result = ""; | |
| 1948 | for (var i = 0; i < text.length; i++) { | |
| 1949 | var ch = text.charAt(i); | |
| 1950 | if (ch == " " && spaceBefore && (i == text.length - 1 || text.charCodeAt(i + 1) == 32)) | |
| 1951 | { ch = "\u00a0"; } | |
| 1952 | result += ch; | |
| 1953 | spaceBefore = ch == " "; | |
| 1954 | } | |
| 1955 | return result | |
| 1956 | } | |
| 1957 | ||
| 1958 | // Work around nonsense dimensions being reported for stretches of | |
| 1959 | // right-to-left text. | |
| 1960 | function buildTokenBadBidi(inner, order) { | |
| 1961 | return function (builder, text, style, startStyle, endStyle, title, css) { | |
| 1962 | style = style ? style + " cm-force-border" : "cm-force-border"; | |
| 1963 | var start = builder.pos, end = start + text.length; | |
| 1964 | for (;;) { | |
| 1965 | // Find the part that overlaps with the start of this text | |
| 1966 | var part = (void 0); | |
| 1967 | for (var i = 0; i < order.length; i++) { | |
| 1968 | part = order[i]; | |
| 1969 | if (part.to > start && part.from <= start) { break } | |
| 1970 | } | |
| 1971 | if (part.to >= end) { return inner(builder, text, style, startStyle, endStyle, title, css) } | |
| 1972 | inner(builder, text.slice(0, part.to - start), style, startStyle, null, title, css); | |
| 1973 | startStyle = null; | |
| 1974 | text = text.slice(part.to - start); | |
| 1975 | start = part.to; | |
| 1976 | } | |
| 1977 | } | |
| 1978 | } | |
| 1979 | ||
| 1980 | function buildCollapsedSpan(builder, size, marker, ignoreWidget) { | |
| 1981 | var widget = !ignoreWidget && marker.widgetNode; | |
| 1982 | if (widget) { builder.map.push(builder.pos, builder.pos + size, widget); } | |
| 1983 | if (!ignoreWidget && builder.cm.display.input.needsContentAttribute) { | |
| 1984 | if (!widget) | |
| 1985 | { widget = builder.content.appendChild(document.createElement("span")); } | |
| 1986 | widget.setAttribute("cm-marker", marker.id); | |
| 1987 | } | |
| 1988 | if (widget) { | |
| 1989 | builder.cm.display.input.setUneditable(widget); | |
| 1990 | builder.content.appendChild(widget); | |
| 1991 | } | |
| 1992 | builder.pos += size; | |
| 1993 | builder.trailingSpace = false; | |
| 1994 | } | |
| 1995 | ||
| 1996 | // Outputs a number of spans to make up a line, taking highlighting | |
| 1997 | // and marked text into account. | |
| 1998 | function insertLineContent(line, builder, styles) { | |
| 1999 | var spans = line.markedSpans, allText = line.text, at = 0; | |
| 2000 | if (!spans) { | |
| 2001 | for (var i$1 = 1; i$1 < styles.length; i$1+=2) | |
| 2002 | { builder.addToken(builder, allText.slice(at, at = styles[i$1]), interpretTokenStyle(styles[i$1+1], builder.cm.options)); } | |
| 2003 | return | |
| 2004 | } | |
| 2005 | ||
| 2006 | var len = allText.length, pos = 0, i = 1, text = "", style, css; | |
| 2007 | var nextChange = 0, spanStyle, spanEndStyle, spanStartStyle, title, collapsed; | |
| 2008 | for (;;) { | |
| 2009 | if (nextChange == pos) { // Update current marker set | |
| 2010 | spanStyle = spanEndStyle = spanStartStyle = title = css = ""; | |
| 2011 | collapsed = null; nextChange = Infinity; | |
| 2012 | var foundBookmarks = [], endStyles = (void 0); | |
| 2013 | for (var j = 0; j < spans.length; ++j) { | |
| 2014 | var sp = spans[j], m = sp.marker; | |
| 2015 | if (m.type == "bookmark" && sp.from == pos && m.widgetNode) { | |
| 2016 | foundBookmarks.push(m); | |
| 2017 | } else if (sp.from <= pos && (sp.to == null || sp.to > pos || m.collapsed && sp.to == pos && sp.from == pos)) { | |
| 2018 | if (sp.to != null && sp.to != pos && nextChange > sp.to) { | |
| 2019 | nextChange = sp.to; | |
| 2020 | spanEndStyle = ""; | |
| 2021 | } | |
| 2022 | if (m.className) { spanStyle += " " + m.className; } | |
| 2023 | if (m.css) { css = (css ? css + ";" : "") + m.css; } | |
| 2024 | if (m.startStyle && sp.from == pos) { spanStartStyle += " " + m.startStyle; } | |
| 2025 | if (m.endStyle && sp.to == nextChange) { (endStyles || (endStyles = [])).push(m.endStyle, sp.to); } | |
| 2026 | if (m.title && !title) { title = m.title; } | |
| 2027 | if (m.collapsed && (!collapsed || compareCollapsedMarkers(collapsed.marker, m) < 0)) | |
| 2028 | { collapsed = sp; } | |
| 2029 | } else if (sp.from > pos && nextChange > sp.from) { | |
| 2030 | nextChange = sp.from; | |
| 2031 | } | |
| 2032 | } | |
| 2033 | if (endStyles) { for (var j$1 = 0; j$1 < endStyles.length; j$1 += 2) | |
| 2034 | { if (endStyles[j$1 + 1] == nextChange) { spanEndStyle += " " + endStyles[j$1]; } } } | |
| 2035 | ||
| 2036 | if (!collapsed || collapsed.from == pos) { for (var j$2 = 0; j$2 < foundBookmarks.length; ++j$2) | |
| 2037 | { buildCollapsedSpan(builder, 0, foundBookmarks[j$2]); } } | |
| 2038 | if (collapsed && (collapsed.from || 0) == pos) { | |
| 2039 | buildCollapsedSpan(builder, (collapsed.to == null ? len + 1 : collapsed.to) - pos, | |
| 2040 | collapsed.marker, collapsed.from == null); | |
| 2041 | if (collapsed.to == null) { return } | |
| 2042 | if (collapsed.to == pos) { collapsed = false; } | |
| 2043 | } | |
| 2044 | } | |
| 2045 | if (pos >= len) { break } | |
| 2046 | ||
| 2047 | var upto = Math.min(len, nextChange); | |
| 2048 | while (true) { | |
| 2049 | if (text) { | |
| 2050 | var end = pos + text.length; | |
| 2051 | if (!collapsed) { | |
| 2052 | var tokenText = end > upto ? text.slice(0, upto - pos) : text; | |
| 2053 | builder.addToken(builder, tokenText, style ? style + spanStyle : spanStyle, | |
| 2054 | spanStartStyle, pos + tokenText.length == nextChange ? spanEndStyle : "", title, css); | |
| 2055 | } | |
| 2056 | if (end >= upto) {text = text.slice(upto - pos); pos = upto; break} | |
| 2057 | pos = end; | |
| 2058 | spanStartStyle = ""; | |
| 2059 | } | |
| 2060 | text = allText.slice(at, at = styles[i++]); | |
| 2061 | style = interpretTokenStyle(styles[i++], builder.cm.options); | |
| 2062 | } | |
| 2063 | } | |
| 2064 | } | |
| 2065 | ||
| 2066 | ||
| 2067 | // These objects are used to represent the visible (currently drawn) | |
| 2068 | // part of the document. A LineView may correspond to multiple | |
| 2069 | // logical lines, if those are connected by collapsed ranges. | |
| 2070 | function LineView(doc, line, lineN) { | |
| 2071 | // The starting line | |
| 2072 | this.line = line; | |
| 2073 | // Continuing lines, if any | |
| 2074 | this.rest = visualLineContinued(line); | |
| 2075 | // Number of logical lines in this visual line | |
| 2076 | this.size = this.rest ? lineNo(lst(this.rest)) - lineN + 1 : 1; | |
| 2077 | this.node = this.text = null; | |
| 2078 | this.hidden = lineIsHidden(doc, line); | |
| 2079 | } | |
| 2080 | ||
| 2081 | // Create a range of LineView objects for the given lines. | |
| 2082 | function buildViewArray(cm, from, to) { | |
| 2083 | var array = [], nextPos; | |
| 2084 | for (var pos = from; pos < to; pos = nextPos) { | |
| 2085 | var view = new LineView(cm.doc, getLine(cm.doc, pos), pos); | |
| 2086 | nextPos = pos + view.size; | |
| 2087 | array.push(view); | |
| 2088 | } | |
| 2089 | return array | |
| 2090 | } | |
| 2091 | ||
| 2092 | var operationGroup = null; | |
| 2093 | ||
| 2094 | function pushOperation(op) { | |
| 2095 | if (operationGroup) { | |
| 2096 | operationGroup.ops.push(op); | |
| 2097 | } else { | |
| 2098 | op.ownsGroup = operationGroup = { | |
| 2099 | ops: [op], | |
| 2100 | delayedCallbacks: [] | |
| 2101 | }; | |
| 2102 | } | |
| 2103 | } | |
| 2104 | ||
| 2105 | function fireCallbacksForOps(group) { | |
| 2106 | // Calls delayed callbacks and cursorActivity handlers until no | |
| 2107 | // new ones appear | |
| 2108 | var callbacks = group.delayedCallbacks, i = 0; | |
| 2109 | do { | |
| 2110 | for (; i < callbacks.length; i++) | |
| 2111 | { callbacks[i].call(null); } | |
| 2112 | for (var j = 0; j < group.ops.length; j++) { | |
| 2113 | var op = group.ops[j]; | |
| 2114 | if (op.cursorActivityHandlers) | |
| 2115 | { while (op.cursorActivityCalled < op.cursorActivityHandlers.length) | |
| 2116 | { op.cursorActivityHandlers[op.cursorActivityCalled++].call(null, op.cm); } } | |
| 2117 | } | |
| 2118 | } while (i < callbacks.length) | |
| 2119 | } | |
| 2120 | ||
| 2121 | function finishOperation(op, endCb) { | |
| 2122 | var group = op.ownsGroup; | |
| 2123 | if (!group) { return } | |
| 2124 | ||
| 2125 | try { fireCallbacksForOps(group); } | |
| 2126 | finally { | |
| 2127 | operationGroup = null; | |
| 2128 | endCb(group); | |
| 2129 | } | |
| 2130 | } | |
| 2131 | ||
| 2132 | var orphanDelayedCallbacks = null; | |
| 2133 | ||
| 2134 | // Often, we want to signal events at a point where we are in the | |
| 2135 | // middle of some work, but don't want the handler to start calling | |
| 2136 | // other methods on the editor, which might be in an inconsistent | |
| 2137 | // state or simply not expect any other events to happen. | |
| 2138 | // signalLater looks whether there are any handlers, and schedules | |
| 2139 | // them to be executed when the last operation ends, or, if no | |
| 2140 | // operation is active, when a timeout fires. | |
| 2141 | function signalLater(emitter, type /*, values...*/) { | |
| 2142 | var arr = getHandlers(emitter, type); | |
| 2143 | if (!arr.length) { return } | |
| 2144 | var args = Array.prototype.slice.call(arguments, 2), list; | |
| 2145 | if (operationGroup) { | |
| 2146 | list = operationGroup.delayedCallbacks; | |
| 2147 | } else if (orphanDelayedCallbacks) { | |
| 2148 | list = orphanDelayedCallbacks; | |
| 2149 | } else { | |
| 2150 | list = orphanDelayedCallbacks = []; | |
| 2151 | setTimeout(fireOrphanDelayed, 0); | |
| 2152 | } | |
| 2153 | var loop = function ( i ) { | |
| 2154 | list.push(function () { return arr[i].apply(null, args); }); | |
| 2155 | }; | |
| 2156 | ||
| 2157 | for (var i = 0; i < arr.length; ++i) | |
| 2158 | loop( i ); | |
| 2159 | } | |
| 2160 | ||
| 2161 | function fireOrphanDelayed() { | |
| 2162 | var delayed = orphanDelayedCallbacks; | |
| 2163 | orphanDelayedCallbacks = null; | |
| 2164 | for (var i = 0; i < delayed.length; ++i) { delayed[i](); } | |
| 2165 | } | |
| 2166 | ||
| 2167 | // When an aspect of a line changes, a string is added to | |
| 2168 | // lineView.changes. This updates the relevant part of the line's | |
| 2169 | // DOM structure. | |
| 2170 | function updateLineForChanges(cm, lineView, lineN, dims) { | |
| 2171 | for (var j = 0; j < lineView.changes.length; j++) { | |
| 2172 | var type = lineView.changes[j]; | |
| 2173 | if (type == "text") { updateLineText(cm, lineView); } | |
| 2174 | else if (type == "gutter") { updateLineGutter(cm, lineView, lineN, dims); } | |
| 2175 | else if (type == "class") { updateLineClasses(cm, lineView); } | |
| 2176 | else if (type == "widget") { updateLineWidgets(cm, lineView, dims); } | |
| 2177 | } | |
| 2178 | lineView.changes = null; | |
| 2179 | } | |
| 2180 | ||
| 2181 | // Lines with gutter elements, widgets or a background class need to | |
| 2182 | // be wrapped, and have the extra elements added to the wrapper div | |
| 2183 | function ensureLineWrapped(lineView) { | |
| 2184 | if (lineView.node == lineView.text) { | |
| 2185 | lineView.node = elt("div", null, null, "position: relative"); | |
| 2186 | if (lineView.text.parentNode) | |
| 2187 | { lineView.text.parentNode.replaceChild(lineView.node, lineView.text); } | |
| 2188 | lineView.node.appendChild(lineView.text); | |
| 2189 | if (ie && ie_version < 8) { lineView.node.style.zIndex = 2; } | |
| 2190 | } | |
| 2191 | return lineView.node | |
| 2192 | } | |
| 2193 | ||
| 2194 | function updateLineBackground(cm, lineView) { | |
| 2195 | var cls = lineView.bgClass ? lineView.bgClass + " " + (lineView.line.bgClass || "") : lineView.line.bgClass; | |
| 2196 | if (cls) { cls += " CodeMirror-linebackground"; } | |
| 2197 | if (lineView.background) { | |
| 2198 | if (cls) { lineView.background.className = cls; } | |
| 2199 | else { lineView.background.parentNode.removeChild(lineView.background); lineView.background = null; } | |
| 2200 | } else if (cls) { | |
| 2201 | var wrap = ensureLineWrapped(lineView); | |
| 2202 | lineView.background = wrap.insertBefore(elt("div", null, cls), wrap.firstChild); | |
| 2203 | cm.display.input.setUneditable(lineView.background); | |
| 2204 | } | |
| 2205 | } | |
| 2206 | ||
| 2207 | // Wrapper around buildLineContent which will reuse the structure | |
| 2208 | // in display.externalMeasured when possible. | |
| 2209 | function getLineContent(cm, lineView) { | |
| 2210 | var ext = cm.display.externalMeasured; | |
| 2211 | if (ext && ext.line == lineView.line) { | |
| 2212 | cm.display.externalMeasured = null; | |
| 2213 | lineView.measure = ext.measure; | |
| 2214 | return ext.built | |
| 2215 | } | |
| 2216 | return buildLineContent(cm, lineView) | |
| 2217 | } | |
| 2218 | ||
| 2219 | // Redraw the line's text. Interacts with the background and text | |
| 2220 | // classes because the mode may output tokens that influence these | |
| 2221 | // classes. | |
| 2222 | function updateLineText(cm, lineView) { | |
| 2223 | var cls = lineView.text.className; | |
| 2224 | var built = getLineContent(cm, lineView); | |
| 2225 | if (lineView.text == lineView.node) { lineView.node = built.pre; } | |
| 2226 | lineView.text.parentNode.replaceChild(built.pre, lineView.text); | |
| 2227 | lineView.text = built.pre; | |
| 2228 | if (built.bgClass != lineView.bgClass || built.textClass != lineView.textClass) { | |
| 2229 | lineView.bgClass = built.bgClass; | |
| 2230 | lineView.textClass = built.textClass; | |
| 2231 | updateLineClasses(cm, lineView); | |
| 2232 | } else if (cls) { | |
| 2233 | lineView.text.className = cls; | |
| 2234 | } | |
| 2235 | } | |
| 2236 | ||
| 2237 | function updateLineClasses(cm, lineView) { | |
| 2238 | updateLineBackground(cm, lineView); | |
| 2239 | if (lineView.line.wrapClass) | |
| 2240 | { ensureLineWrapped(lineView).className = lineView.line.wrapClass; } | |
| 2241 | else if (lineView.node != lineView.text) | |
| 2242 | { lineView.node.className = ""; } | |
| 2243 | var textClass = lineView.textClass ? lineView.textClass + " " + (lineView.line.textClass || "") : lineView.line.textClass; | |
| 2244 | lineView.text.className = textClass || ""; | |
| 2245 | } | |
| 2246 | ||
| 2247 | function updateLineGutter(cm, lineView, lineN, dims) { | |
| 2248 | if (lineView.gutter) { | |
| 2249 | lineView.node.removeChild(lineView.gutter); | |
| 2250 | lineView.gutter = null; | |
| 2251 | } | |
| 2252 | if (lineView.gutterBackground) { | |
| 2253 | lineView.node.removeChild(lineView.gutterBackground); | |
| 2254 | lineView.gutterBackground = null; | |
| 2255 | } | |
| 2256 | if (lineView.line.gutterClass) { | |
| 2257 | var wrap = ensureLineWrapped(lineView); | |
| 2258 | lineView.gutterBackground = elt("div", null, "CodeMirror-gutter-background " + lineView.line.gutterClass, | |
| 2259 | ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px; width: " + (dims.gutterTotalWidth) + "px")); | |
| 2260 | cm.display.input.setUneditable(lineView.gutterBackground); | |
| 2261 | wrap.insertBefore(lineView.gutterBackground, lineView.text); | |
| 2262 | } | |
| 2263 | var markers = lineView.line.gutterMarkers; | |
| 2264 | if (cm.options.lineNumbers || markers) { | |
| 2265 | var wrap$1 = ensureLineWrapped(lineView); | |
| 2266 | var gutterWrap = lineView.gutter = elt("div", null, "CodeMirror-gutter-wrapper", ("left: " + (cm.options.fixedGutter ? dims.fixedPos : -dims.gutterTotalWidth) + "px")); | |
| 2267 | cm.display.input.setUneditable(gutterWrap); | |
| 2268 | wrap$1.insertBefore(gutterWrap, lineView.text); | |
| 2269 | if (lineView.line.gutterClass) | |
| 2270 | { gutterWrap.className += " " + lineView.line.gutterClass; } | |
| 2271 | if (cm.options.lineNumbers && (!markers || !markers["CodeMirror-linenumbers"])) | |
| 2272 | { lineView.lineNumber = gutterWrap.appendChild( | |
| 2273 | elt("div", lineNumberFor(cm.options, lineN), | |
| 2274 | "CodeMirror-linenumber CodeMirror-gutter-elt", | |
| 2275 | ("left: " + (dims.gutterLeft["CodeMirror-linenumbers"]) + "px; width: " + (cm.display.lineNumInnerWidth) + "px"))); } | |
| 2276 | if (markers) { for (var k = 0; k < cm.options.gutters.length; ++k) { | |
| 2277 | var id = cm.options.gutters[k], found = markers.hasOwnProperty(id) && markers[id]; | |
| 2278 | if (found) | |
| 2279 | { gutterWrap.appendChild(elt("div", [found], "CodeMirror-gutter-elt", | |
| 2280 | ("left: " + (dims.gutterLeft[id]) + "px; width: " + (dims.gutterWidth[id]) + "px"))); } | |
| 2281 | } } | |
| 2282 | } | |
| 2283 | } | |
| 2284 | ||
| 2285 | function updateLineWidgets(cm, lineView, dims) { | |
| 2286 | if (lineView.alignable) { lineView.alignable = null; } | |
| 2287 | for (var node = lineView.node.firstChild, next = (void 0); node; node = next) { | |
| 2288 | next = node.nextSibling; | |
| 2289 | if (node.className == "CodeMirror-linewidget") | |
| 2290 | { lineView.node.removeChild(node); } | |
| 2291 | } | |
| 2292 | insertLineWidgets(cm, lineView, dims); | |
| 2293 | } | |
| 2294 | ||
| 2295 | // Build a line's DOM representation from scratch | |
| 2296 | function buildLineElement(cm, lineView, lineN, dims) { | |
| 2297 | var built = getLineContent(cm, lineView); | |
| 2298 | lineView.text = lineView.node = built.pre; | |
| 2299 | if (built.bgClass) { lineView.bgClass = built.bgClass; } | |
| 2300 | if (built.textClass) { lineView.textClass = built.textClass; } | |
| 2301 | ||
| 2302 | updateLineClasses(cm, lineView); | |
| 2303 | updateLineGutter(cm, lineView, lineN, dims); | |
| 2304 | insertLineWidgets(cm, lineView, dims); | |
| 2305 | return lineView.node | |
| 2306 | } | |
| 2307 | ||
| 2308 | // A lineView may contain multiple logical lines (when merged by | |
| 2309 | // collapsed spans). The widgets for all of them need to be drawn. | |
| 2310 | function insertLineWidgets(cm, lineView, dims) { | |
| 2311 | insertLineWidgetsFor(cm, lineView.line, lineView, dims, true); | |
| 2312 | if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) | |
| 2313 | { insertLineWidgetsFor(cm, lineView.rest[i], lineView, dims, false); } } | |
| 2314 | } | |
| 2315 | ||
| 2316 | function insertLineWidgetsFor(cm, line, lineView, dims, allowAbove) { | |
| 2317 | if (!line.widgets) { return } | |
| 2318 | var wrap = ensureLineWrapped(lineView); | |
| 2319 | for (var i = 0, ws = line.widgets; i < ws.length; ++i) { | |
| 2320 | var widget = ws[i], node = elt("div", [widget.node], "CodeMirror-linewidget"); | |
| 2321 | if (!widget.handleMouseEvents) { node.setAttribute("cm-ignore-events", "true"); } | |
| 2322 | positionLineWidget(widget, node, lineView, dims); | |
| 2323 | cm.display.input.setUneditable(node); | |
| 2324 | if (allowAbove && widget.above) | |
| 2325 | { wrap.insertBefore(node, lineView.gutter || lineView.text); } | |
| 2326 | else | |
| 2327 | { wrap.appendChild(node); } | |
| 2328 | signalLater(widget, "redraw"); | |
| 2329 | } | |
| 2330 | } | |
| 2331 | ||
| 2332 | function positionLineWidget(widget, node, lineView, dims) { | |
| 2333 | if (widget.noHScroll) { | |
| 2334 | (lineView.alignable || (lineView.alignable = [])).push(node); | |
| 2335 | var width = dims.wrapperWidth; | |
| 2336 | node.style.left = dims.fixedPos + "px"; | |
| 2337 | if (!widget.coverGutter) { | |
| 2338 | width -= dims.gutterTotalWidth; | |
| 2339 | node.style.paddingLeft = dims.gutterTotalWidth + "px"; | |
| 2340 | } | |
| 2341 | node.style.width = width + "px"; | |
| 2342 | } | |
| 2343 | if (widget.coverGutter) { | |
| 2344 | node.style.zIndex = 5; | |
| 2345 | node.style.position = "relative"; | |
| 2346 | if (!widget.noHScroll) { node.style.marginLeft = -dims.gutterTotalWidth + "px"; } | |
| 2347 | } | |
| 2348 | } | |
| 2349 | ||
| 2350 | function widgetHeight(widget) { | |
| 2351 | if (widget.height != null) { return widget.height } | |
| 2352 | var cm = widget.doc.cm; | |
| 2353 | if (!cm) { return 0 } | |
| 2354 | if (!contains(document.body, widget.node)) { | |
| 2355 | var parentStyle = "position: relative;"; | |
| 2356 | if (widget.coverGutter) | |
| 2357 | { parentStyle += "margin-left: -" + cm.display.gutters.offsetWidth + "px;"; } | |
| 2358 | if (widget.noHScroll) | |
| 2359 | { parentStyle += "width: " + cm.display.wrapper.clientWidth + "px;"; } | |
| 2360 | removeChildrenAndAdd(cm.display.measure, elt("div", [widget.node], null, parentStyle)); | |
| 2361 | } | |
| 2362 | return widget.height = widget.node.parentNode.offsetHeight | |
| 2363 | } | |
| 2364 | ||
| 2365 | // Return true when the given mouse event happened in a widget | |
| 2366 | function eventInWidget(display, e) { | |
| 2367 | for (var n = e_target(e); n != display.wrapper; n = n.parentNode) { | |
| 2368 | if (!n || (n.nodeType == 1 && n.getAttribute("cm-ignore-events") == "true") || | |
| 2369 | (n.parentNode == display.sizer && n != display.mover)) | |
| 2370 | { return true } | |
| 2371 | } | |
| 2372 | } | |
| 2373 | ||
| 2374 | // POSITION MEASUREMENT | |
| 2375 | ||
| 2376 | function paddingTop(display) {return display.lineSpace.offsetTop} | |
| 2377 | function paddingVert(display) {return display.mover.offsetHeight - display.lineSpace.offsetHeight} | |
| 2378 | function paddingH(display) { | |
| 2379 | if (display.cachedPaddingH) { return display.cachedPaddingH } | |
| 2380 | var e = removeChildrenAndAdd(display.measure, elt("pre", "x")); | |
| 2381 | var style = window.getComputedStyle ? window.getComputedStyle(e) : e.currentStyle; | |
| 2382 | var data = {left: parseInt(style.paddingLeft), right: parseInt(style.paddingRight)}; | |
| 2383 | if (!isNaN(data.left) && !isNaN(data.right)) { display.cachedPaddingH = data; } | |
| 2384 | return data | |
| 2385 | } | |
| 2386 | ||
| 2387 | function scrollGap(cm) { return scrollerGap - cm.display.nativeBarWidth } | |
| 2388 | function displayWidth(cm) { | |
| 2389 | return cm.display.scroller.clientWidth - scrollGap(cm) - cm.display.barWidth | |
| 2390 | } | |
| 2391 | function displayHeight(cm) { | |
| 2392 | return cm.display.scroller.clientHeight - scrollGap(cm) - cm.display.barHeight | |
| 2393 | } | |
| 2394 | ||
| 2395 | // Ensure the lineView.wrapping.heights array is populated. This is | |
| 2396 | // an array of bottom offsets for the lines that make up a drawn | |
| 2397 | // line. When lineWrapping is on, there might be more than one | |
| 2398 | // height. | |
| 2399 | function ensureLineHeights(cm, lineView, rect) { | |
| 2400 | var wrapping = cm.options.lineWrapping; | |
| 2401 | var curWidth = wrapping && displayWidth(cm); | |
| 2402 | if (!lineView.measure.heights || wrapping && lineView.measure.width != curWidth) { | |
| 2403 | var heights = lineView.measure.heights = []; | |
| 2404 | if (wrapping) { | |
| 2405 | lineView.measure.width = curWidth; | |
| 2406 | var rects = lineView.text.firstChild.getClientRects(); | |
| 2407 | for (var i = 0; i < rects.length - 1; i++) { | |
| 2408 | var cur = rects[i], next = rects[i + 1]; | |
| 2409 | if (Math.abs(cur.bottom - next.bottom) > 2) | |
| 2410 | { heights.push((cur.bottom + next.top) / 2 - rect.top); } | |
| 2411 | } | |
| 2412 | } | |
| 2413 | heights.push(rect.bottom - rect.top); | |
| 2414 | } | |
| 2415 | } | |
| 2416 | ||
| 2417 | // Find a line map (mapping character offsets to text nodes) and a | |
| 2418 | // measurement cache for the given line number. (A line view might | |
| 2419 | // contain multiple lines when collapsed ranges are present.) | |
| 2420 | function mapFromLineView(lineView, line, lineN) { | |
| 2421 | if (lineView.line == line) | |
| 2422 | { return {map: lineView.measure.map, cache: lineView.measure.cache} } | |
| 2423 | for (var i = 0; i < lineView.rest.length; i++) | |
| 2424 | { if (lineView.rest[i] == line) | |
| 2425 | { return {map: lineView.measure.maps[i], cache: lineView.measure.caches[i]} } } | |
| 2426 | for (var i$1 = 0; i$1 < lineView.rest.length; i$1++) | |
| 2427 | { if (lineNo(lineView.rest[i$1]) > lineN) | |
| 2428 | { return {map: lineView.measure.maps[i$1], cache: lineView.measure.caches[i$1], before: true} } } | |
| 2429 | } | |
| 2430 | ||
| 2431 | // Render a line into the hidden node display.externalMeasured. Used | |
| 2432 | // when measurement is needed for a line that's not in the viewport. | |
| 2433 | function updateExternalMeasurement(cm, line) { | |
| 2434 | line = visualLine(line); | |
| 2435 | var lineN = lineNo(line); | |
| 2436 | var view = cm.display.externalMeasured = new LineView(cm.doc, line, lineN); | |
| 2437 | view.lineN = lineN; | |
| 2438 | var built = view.built = buildLineContent(cm, view); | |
| 2439 | view.text = built.pre; | |
| 2440 | removeChildrenAndAdd(cm.display.lineMeasure, built.pre); | |
| 2441 | return view | |
| 2442 | } | |
| 2443 | ||
| 2444 | // Get a {top, bottom, left, right} box (in line-local coordinates) | |
| 2445 | // for a given character. | |
| 2446 | function measureChar(cm, line, ch, bias) { | |
| 2447 | return measureCharPrepared(cm, prepareMeasureForLine(cm, line), ch, bias) | |
| 2448 | } | |
| 2449 | ||
| 2450 | // Find a line view that corresponds to the given line number. | |
| 2451 | function findViewForLine(cm, lineN) { | |
| 2452 | if (lineN >= cm.display.viewFrom && lineN < cm.display.viewTo) | |
| 2453 | { return cm.display.view[findViewIndex(cm, lineN)] } | |
| 2454 | var ext = cm.display.externalMeasured; | |
| 2455 | if (ext && lineN >= ext.lineN && lineN < ext.lineN + ext.size) | |
| 2456 | { return ext } | |
| 2457 | } | |
| 2458 | ||
| 2459 | // Measurement can be split in two steps, the set-up work that | |
| 2460 | // applies to the whole line, and the measurement of the actual | |
| 2461 | // character. Functions like coordsChar, that need to do a lot of | |
| 2462 | // measurements in a row, can thus ensure that the set-up work is | |
| 2463 | // only done once. | |
| 2464 | function prepareMeasureForLine(cm, line) { | |
| 2465 | var lineN = lineNo(line); | |
| 2466 | var view = findViewForLine(cm, lineN); | |
| 2467 | if (view && !view.text) { | |
| 2468 | view = null; | |
| 2469 | } else if (view && view.changes) { | |
| 2470 | updateLineForChanges(cm, view, lineN, getDimensions(cm)); | |
| 2471 | cm.curOp.forceUpdate = true; | |
| 2472 | } | |
| 2473 | if (!view) | |
| 2474 | { view = updateExternalMeasurement(cm, line); } | |
| 2475 | ||
| 2476 | var info = mapFromLineView(view, line, lineN); | |
| 2477 | return { | |
| 2478 | line: line, view: view, rect: null, | |
| 2479 | map: info.map, cache: info.cache, before: info.before, | |
| 2480 | hasHeights: false | |
| 2481 | } | |
| 2482 | } | |
| 2483 | ||
| 2484 | // Given a prepared measurement object, measures the position of an | |
| 2485 | // actual character (or fetches it from the cache). | |
| 2486 | function measureCharPrepared(cm, prepared, ch, bias, varHeight) { | |
| 2487 | if (prepared.before) { ch = -1; } | |
| 2488 | var key = ch + (bias || ""), found; | |
| 2489 | if (prepared.cache.hasOwnProperty(key)) { | |
| 2490 | found = prepared.cache[key]; | |
| 2491 | } else { | |
| 2492 | if (!prepared.rect) | |
| 2493 | { prepared.rect = prepared.view.text.getBoundingClientRect(); } | |
| 2494 | if (!prepared.hasHeights) { | |
| 2495 | ensureLineHeights(cm, prepared.view, prepared.rect); | |
| 2496 | prepared.hasHeights = true; | |
| 2497 | } | |
| 2498 | found = measureCharInner(cm, prepared, ch, bias); | |
| 2499 | if (!found.bogus) { prepared.cache[key] = found; } | |
| 2500 | } | |
| 2501 | return {left: found.left, right: found.right, | |
| 2502 | top: varHeight ? found.rtop : found.top, | |
| 2503 | bottom: varHeight ? found.rbottom : found.bottom} | |
| 2504 | } | |
| 2505 | ||
| 2506 | var nullRect = {left: 0, right: 0, top: 0, bottom: 0}; | |
| 2507 | ||
| 2508 | function nodeAndOffsetInLineMap(map$$1, ch, bias) { | |
| 2509 | var node, start, end, collapse, mStart, mEnd; | |
| 2510 | // First, search the line map for the text node corresponding to, | |
| 2511 | // or closest to, the target character. | |
| 2512 | for (var i = 0; i < map$$1.length; i += 3) { | |
| 2513 | mStart = map$$1[i]; | |
| 2514 | mEnd = map$$1[i + 1]; | |
| 2515 | if (ch < mStart) { | |
| 2516 | start = 0; end = 1; | |
| 2517 | collapse = "left"; | |
| 2518 | } else if (ch < mEnd) { | |
| 2519 | start = ch - mStart; | |
| 2520 | end = start + 1; | |
| 2521 | } else if (i == map$$1.length - 3 || ch == mEnd && map$$1[i + 3] > ch) { | |
| 2522 | end = mEnd - mStart; | |
| 2523 | start = end - 1; | |
| 2524 | if (ch >= mEnd) { collapse = "right"; } | |
| 2525 | } | |
| 2526 | if (start != null) { | |
| 2527 | node = map$$1[i + 2]; | |
| 2528 | if (mStart == mEnd && bias == (node.insertLeft ? "left" : "right")) | |
| 2529 | { collapse = bias; } | |
| 2530 | if (bias == "left" && start == 0) | |
| 2531 | { while (i && map$$1[i - 2] == map$$1[i - 3] && map$$1[i - 1].insertLeft) { | |
| 2532 | node = map$$1[(i -= 3) + 2]; | |
| 2533 | collapse = "left"; | |
| 2534 | } } | |
| 2535 | if (bias == "right" && start == mEnd - mStart) | |
| 2536 | { while (i < map$$1.length - 3 && map$$1[i + 3] == map$$1[i + 4] && !map$$1[i + 5].insertLeft) { | |
| 2537 | node = map$$1[(i += 3) + 2]; | |
| 2538 | collapse = "right"; | |
| 2539 | } } | |
| 2540 | break | |
| 2541 | } | |
| 2542 | } | |
| 2543 | return {node: node, start: start, end: end, collapse: collapse, coverStart: mStart, coverEnd: mEnd} | |
| 2544 | } | |
| 2545 | ||
| 2546 | function getUsefulRect(rects, bias) { | |
| 2547 | var rect = nullRect; | |
| 2548 | if (bias == "left") { for (var i = 0; i < rects.length; i++) { | |
| 2549 | if ((rect = rects[i]).left != rect.right) { break } | |
| 2550 | } } else { for (var i$1 = rects.length - 1; i$1 >= 0; i$1--) { | |
| 2551 | if ((rect = rects[i$1]).left != rect.right) { break } | |
| 2552 | } } | |
| 2553 | return rect | |
| 2554 | } | |
| 2555 | ||
| 2556 | function measureCharInner(cm, prepared, ch, bias) { | |
| 2557 | var place = nodeAndOffsetInLineMap(prepared.map, ch, bias); | |
| 2558 | var node = place.node, start = place.start, end = place.end, collapse = place.collapse; | |
| 2559 | ||
| 2560 | var rect; | |
| 2561 | if (node.nodeType == 3) { // If it is a text node, use a range to retrieve the coordinates. | |
| 2562 | for (var i$1 = 0; i$1 < 4; i$1++) { // Retry a maximum of 4 times when nonsense rectangles are returned | |
| 2563 | while (start && isExtendingChar(prepared.line.text.charAt(place.coverStart + start))) { --start; } | |
| 2564 | while (place.coverStart + end < place.coverEnd && isExtendingChar(prepared.line.text.charAt(place.coverStart + end))) { ++end; } | |
| 2565 | if (ie && ie_version < 9 && start == 0 && end == place.coverEnd - place.coverStart) | |
| 2566 | { rect = node.parentNode.getBoundingClientRect(); } | |
| 2567 | else | |
| 2568 | { rect = getUsefulRect(range(node, start, end).getClientRects(), bias); } | |
| 2569 | if (rect.left || rect.right || start == 0) { break } | |
| 2570 | end = start; | |
| 2571 | start = start - 1; | |
| 2572 | collapse = "right"; | |
| 2573 | } | |
| 2574 | if (ie && ie_version < 11) { rect = maybeUpdateRectForZooming(cm.display.measure, rect); } | |
| 2575 | } else { // If it is a widget, simply get the box for the whole widget. | |
| 2576 | if (start > 0) { collapse = bias = "right"; } | |
| 2577 | var rects; | |
| 2578 | if (cm.options.lineWrapping && (rects = node.getClientRects()).length > 1) | |
| 2579 | { rect = rects[bias == "right" ? rects.length - 1 : 0]; } | |
| 2580 | else | |
| 2581 | { rect = node.getBoundingClientRect(); } | |
| 2582 | } | |
| 2583 | if (ie && ie_version < 9 && !start && (!rect || !rect.left && !rect.right)) { | |
| 2584 | var rSpan = node.parentNode.getClientRects()[0]; | |
| 2585 | if (rSpan) | |
| 2586 | { rect = {left: rSpan.left, right: rSpan.left + charWidth(cm.display), top: rSpan.top, bottom: rSpan.bottom}; } | |
| 2587 | else | |
| 2588 | { rect = nullRect; } | |
| 2589 | } | |
| 2590 | ||
| 2591 | var rtop = rect.top - prepared.rect.top, rbot = rect.bottom - prepared.rect.top; | |
| 2592 | var mid = (rtop + rbot) / 2; | |
| 2593 | var heights = prepared.view.measure.heights; | |
| 2594 | var i = 0; | |
| 2595 | for (; i < heights.length - 1; i++) | |
| 2596 | { if (mid < heights[i]) { break } } | |
| 2597 | var top = i ? heights[i - 1] : 0, bot = heights[i]; | |
| 2598 | var result = {left: (collapse == "right" ? rect.right : rect.left) - prepared.rect.left, | |
| 2599 | right: (collapse == "left" ? rect.left : rect.right) - prepared.rect.left, | |
| 2600 | top: top, bottom: bot}; | |
| 2601 | if (!rect.left && !rect.right) { result.bogus = true; } | |
| 2602 | if (!cm.options.singleCursorHeightPerLine) { result.rtop = rtop; result.rbottom = rbot; } | |
| 2603 | ||
| 2604 | return result | |
| 2605 | } | |
| 2606 | ||
| 2607 | // Work around problem with bounding client rects on ranges being | |
| 2608 | // returned incorrectly when zoomed on IE10 and below. | |
| 2609 | function maybeUpdateRectForZooming(measure, rect) { | |
| 2610 | if (!window.screen || screen.logicalXDPI == null || | |
| 2611 | screen.logicalXDPI == screen.deviceXDPI || !hasBadZoomedRects(measure)) | |
| 2612 | { return rect } | |
| 2613 | var scaleX = screen.logicalXDPI / screen.deviceXDPI; | |
| 2614 | var scaleY = screen.logicalYDPI / screen.deviceYDPI; | |
| 2615 | return {left: rect.left * scaleX, right: rect.right * scaleX, | |
| 2616 | top: rect.top * scaleY, bottom: rect.bottom * scaleY} | |
| 2617 | } | |
| 2618 | ||
| 2619 | function clearLineMeasurementCacheFor(lineView) { | |
| 2620 | if (lineView.measure) { | |
| 2621 | lineView.measure.cache = {}; | |
| 2622 | lineView.measure.heights = null; | |
| 2623 | if (lineView.rest) { for (var i = 0; i < lineView.rest.length; i++) | |
| 2624 | { lineView.measure.caches[i] = {}; } } | |
| 2625 | } | |
| 2626 | } | |
| 2627 | ||
| 2628 | function clearLineMeasurementCache(cm) { | |
| 2629 | cm.display.externalMeasure = null; | |
| 2630 | removeChildren(cm.display.lineMeasure); | |
| 2631 | for (var i = 0; i < cm.display.view.length; i++) | |
| 2632 | { clearLineMeasurementCacheFor(cm.display.view[i]); } | |
| 2633 | } | |
| 2634 | ||
| 2635 | function clearCaches(cm) { | |
| 2636 | clearLineMeasurementCache(cm); | |
| 2637 | cm.display.cachedCharWidth = cm.display.cachedTextHeight = cm.display.cachedPaddingH = null; | |
| 2638 | if (!cm.options.lineWrapping) { cm.display.maxLineChanged = true; } | |
| 2639 | cm.display.lineNumChars = null; | |
| 2640 | } | |
| 2641 | ||
| 2642 | function pageScrollX() { | |
| 2643 | // Work around https://bugs.chromium.org/p/chromium/issues/detail?id=489206 | |
| 2644 | // which causes page_Offset and bounding client rects to use | |
| 2645 | // different reference viewports and invalidate our calculations. | |
| 2646 | if (chrome && android) { return -(document.body.getBoundingClientRect().left - parseInt(getComputedStyle(document.body).marginLeft)) } | |
| 2647 | return window.pageXOffset || (document.documentElement || document.body).scrollLeft | |
| 2648 | } | |
| 2649 | function pageScrollY() { | |
| 2650 | if (chrome && android) { return -(document.body.getBoundingClientRect().top - parseInt(getComputedStyle(document.body).marginTop)) } | |
| 2651 | return window.pageYOffset || (document.documentElement || document.body).scrollTop | |
| 2652 | } | |
| 2653 | ||
| 2654 | function widgetTopHeight(lineObj) { | |
| 2655 | var height = 0; | |
| 2656 | if (lineObj.widgets) { for (var i = 0; i < lineObj.widgets.length; ++i) { if (lineObj.widgets[i].above) | |
| 2657 | { height += widgetHeight(lineObj.widgets[i]); } } } | |
| 2658 | return height | |
| 2659 | } | |
| 2660 | ||
| 2661 | // Converts a {top, bottom, left, right} box from line-local | |
| 2662 | // coordinates into another coordinate system. Context may be one of | |
| 2663 | // "line", "div" (display.lineDiv), "local"./null (editor), "window", | |
| 2664 | // or "page". | |
| 2665 | function intoCoordSystem(cm, lineObj, rect, context, includeWidgets) { | |
| 2666 | if (!includeWidgets) { | |
| 2667 | var height = widgetTopHeight(lineObj); | |
| 2668 | rect.top += height; rect.bottom += height; | |
| 2669 | } | |
| 2670 | if (context == "line") { return rect } | |
| 2671 | if (!context) { context = "local"; } | |
| 2672 | var yOff = heightAtLine(lineObj); | |
| 2673 | if (context == "local") { yOff += paddingTop(cm.display); } | |
| 2674 | else { yOff -= cm.display.viewOffset; } | |
| 2675 | if (context == "page" || context == "window") { | |
| 2676 | var lOff = cm.display.lineSpace.getBoundingClientRect(); | |
| 2677 | yOff += lOff.top + (context == "window" ? 0 : pageScrollY()); | |
| 2678 | var xOff = lOff.left + (context == "window" ? 0 : pageScrollX()); | |
| 2679 | rect.left += xOff; rect.right += xOff; | |
| 2680 | } | |
| 2681 | rect.top += yOff; rect.bottom += yOff; | |
| 2682 | return rect | |
| 2683 | } | |
| 2684 | ||
| 2685 | // Coverts a box from "div" coords to another coordinate system. | |
| 2686 | // Context may be "window", "page", "div", or "local"./null. | |
| 2687 | function fromCoordSystem(cm, coords, context) { | |
| 2688 | if (context == "div") { return coords } | |
| 2689 | var left = coords.left, top = coords.top; | |
| 2690 | // First move into "page" coordinate system | |
| 2691 | if (context == "page") { | |
| 2692 | left -= pageScrollX(); | |
| 2693 | top -= pageScrollY(); | |
| 2694 | } else if (context == "local" || !context) { | |
| 2695 | var localBox = cm.display.sizer.getBoundingClientRect(); | |
| 2696 | left += localBox.left; | |
| 2697 | top += localBox.top; | |
| 2698 | } | |
| 2699 | ||
| 2700 | var lineSpaceBox = cm.display.lineSpace.getBoundingClientRect(); | |
| 2701 | return {left: left - lineSpaceBox.left, top: top - lineSpaceBox.top} | |
| 2702 | } | |
| 2703 | ||
| 2704 | function charCoords(cm, pos, context, lineObj, bias) { | |
| 2705 | if (!lineObj) { lineObj = getLine(cm.doc, pos.line); } | |
| 2706 | return intoCoordSystem(cm, lineObj, measureChar(cm, lineObj, pos.ch, bias), context) | |
| 2707 | } | |
| 2708 | ||
| 2709 | // Returns a box for a given cursor position, which may have an | |
| 2710 | // 'other' property containing the position of the secondary cursor | |
| 2711 | // on a bidi boundary. | |
| 2712 | // A cursor Pos(line, char, "before") is on the same visual line as `char - 1` | |
| 2713 | // and after `char - 1` in writing order of `char - 1` | |
| 2714 | // A cursor Pos(line, char, "after") is on the same visual line as `char` | |
| 2715 | // and before `char` in writing order of `char` | |
| 2716 | // Examples (upper-case letters are RTL, lower-case are LTR): | |
| 2717 | // Pos(0, 1, ...) | |
| 2718 | // before after | |
| 2719 | // ab a|b a|b | |
| 2720 | // aB a|B aB| | |
| 2721 | // Ab |Ab A|b | |
| 2722 | // AB B|A B|A | |
| 2723 | // Every position after the last character on a line is considered to stick | |
| 2724 | // to the last character on the line. | |
| 2725 | function cursorCoords(cm, pos, context, lineObj, preparedMeasure, varHeight) { | |
| 2726 | lineObj = lineObj || getLine(cm.doc, pos.line); | |
| 2727 | if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } | |
| 2728 | function get(ch, right) { | |
| 2729 | var m = measureCharPrepared(cm, preparedMeasure, ch, right ? "right" : "left", varHeight); | |
| 2730 | if (right) { m.left = m.right; } else { m.right = m.left; } | |
| 2731 | return intoCoordSystem(cm, lineObj, m, context) | |
| 2732 | } | |
| 2733 | var order = getOrder(lineObj, cm.doc.direction), ch = pos.ch, sticky = pos.sticky; | |
| 2734 | if (ch >= lineObj.text.length) { | |
| 2735 | ch = lineObj.text.length; | |
| 2736 | sticky = "before"; | |
| 2737 | } else if (ch <= 0) { | |
| 2738 | ch = 0; | |
| 2739 | sticky = "after"; | |
| 2740 | } | |
| 2741 | if (!order) { return get(sticky == "before" ? ch - 1 : ch, sticky == "before") } | |
| 2742 | ||
| 2743 | function getBidi(ch, partPos, invert) { | |
| 2744 | var part = order[partPos], right = part.level == 1; | |
| 2745 | return get(invert ? ch - 1 : ch, right != invert) | |
| 2746 | } | |
| 2747 | var partPos = getBidiPartAt(order, ch, sticky); | |
| 2748 | var other = bidiOther; | |
| 2749 | var val = getBidi(ch, partPos, sticky == "before"); | |
| 2750 | if (other != null) { val.other = getBidi(ch, other, sticky != "before"); } | |
| 2751 | return val | |
| 2752 | } | |
| 2753 | ||
| 2754 | // Used to cheaply estimate the coordinates for a position. Used for | |
| 2755 | // intermediate scroll updates. | |
| 2756 | function estimateCoords(cm, pos) { | |
| 2757 | var left = 0; | |
| 2758 | pos = clipPos(cm.doc, pos); | |
| 2759 | if (!cm.options.lineWrapping) { left = charWidth(cm.display) * pos.ch; } | |
| 2760 | var lineObj = getLine(cm.doc, pos.line); | |
| 2761 | var top = heightAtLine(lineObj) + paddingTop(cm.display); | |
| 2762 | return {left: left, right: left, top: top, bottom: top + lineObj.height} | |
| 2763 | } | |
| 2764 | ||
| 2765 | // Positions returned by coordsChar contain some extra information. | |
| 2766 | // xRel is the relative x position of the input coordinates compared | |
| 2767 | // to the found position (so xRel > 0 means the coordinates are to | |
| 2768 | // the right of the character position, for example). When outside | |
| 2769 | // is true, that means the coordinates lie outside the line's | |
| 2770 | // vertical range. | |
| 2771 | function PosWithInfo(line, ch, sticky, outside, xRel) { | |
| 2772 | var pos = Pos(line, ch, sticky); | |
| 2773 | pos.xRel = xRel; | |
| 2774 | if (outside) { pos.outside = true; } | |
| 2775 | return pos | |
| 2776 | } | |
| 2777 | ||
| 2778 | // Compute the character position closest to the given coordinates. | |
| 2779 | // Input must be lineSpace-local ("div" coordinate system). | |
| 2780 | function coordsChar(cm, x, y) { | |
| 2781 | var doc = cm.doc; | |
| 2782 | y += cm.display.viewOffset; | |
| 2783 | if (y < 0) { return PosWithInfo(doc.first, 0, null, true, -1) } | |
| 2784 | var lineN = lineAtHeight(doc, y), last = doc.first + doc.size - 1; | |
| 2785 | if (lineN > last) | |
| 2786 | { return PosWithInfo(doc.first + doc.size - 1, getLine(doc, last).text.length, null, true, 1) } | |
| 2787 | if (x < 0) { x = 0; } | |
| 2788 | ||
| 2789 | var lineObj = getLine(doc, lineN); | |
| 2790 | for (;;) { | |
| 2791 | var found = coordsCharInner(cm, lineObj, lineN, x, y); | |
| 2792 | var collapsed = collapsedSpanAround(lineObj, found.ch + (found.xRel > 0 ? 1 : 0)); | |
| 2793 | if (!collapsed) { return found } | |
| 2794 | var rangeEnd = collapsed.find(1); | |
| 2795 | if (rangeEnd.line == lineN) { return rangeEnd } | |
| 2796 | lineObj = getLine(doc, lineN = rangeEnd.line); | |
| 2797 | } | |
| 2798 | } | |
| 2799 | ||
| 2800 | function wrappedLineExtent(cm, lineObj, preparedMeasure, y) { | |
| 2801 | y -= widgetTopHeight(lineObj); | |
| 2802 | var end = lineObj.text.length; | |
| 2803 | var begin = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch - 1).bottom <= y; }, end, 0); | |
| 2804 | end = findFirst(function (ch) { return measureCharPrepared(cm, preparedMeasure, ch).top > y; }, begin, end); | |
| 2805 | return {begin: begin, end: end} | |
| 2806 | } | |
| 2807 | ||
| 2808 | function wrappedLineExtentChar(cm, lineObj, preparedMeasure, target) { | |
| 2809 | if (!preparedMeasure) { preparedMeasure = prepareMeasureForLine(cm, lineObj); } | |
| 2810 | var targetTop = intoCoordSystem(cm, lineObj, measureCharPrepared(cm, preparedMeasure, target), "line").top; | |
| 2811 | return wrappedLineExtent(cm, lineObj, preparedMeasure, targetTop) | |
| 2812 | } | |
| 2813 | ||
| 2814 | // Returns true if the given side of a box is after the given | |
| 2815 | // coordinates, in top-to-bottom, left-to-right order. | |
| 2816 | function boxIsAfter(box, x, y, left) { | |
| 2817 | return box.bottom <= y ? false : box.top > y ? true : (left ? box.left : box.right) > x | |
| 2818 | } | |
| 2819 | ||
| 2820 | function coordsCharInner(cm, lineObj, lineNo$$1, x, y) { | |
| 2821 | // Move y into line-local coordinate space | |
| 2822 | y -= heightAtLine(lineObj); | |
| 2823 | var preparedMeasure = prepareMeasureForLine(cm, lineObj); | |
| 2824 | // When directly calling `measureCharPrepared`, we have to adjust | |
| 2825 | // for the widgets at this line. | |
| 2826 | var widgetHeight$$1 = widgetTopHeight(lineObj); | |
| 2827 | var begin = 0, end = lineObj.text.length, ltr = true; | |
| 2828 | ||
| 2829 | var order = getOrder(lineObj, cm.doc.direction); | |
| 2830 | // If the line isn't plain left-to-right text, first figure out | |
| 2831 | // which bidi section the coordinates fall into. | |
| 2832 | if (order) { | |
| 2833 | var part = (cm.options.lineWrapping ? coordsBidiPartWrapped : coordsBidiPart) | |
| 2834 | (cm, lineObj, lineNo$$1, preparedMeasure, order, x, y); | |
| 2835 | ltr = part.level != 1; | |
| 2836 | // The awkward -1 offsets are needed because findFirst (called | |
| 2837 | // on these below) will treat its first bound as inclusive, | |
| 2838 | // second as exclusive, but we want to actually address the | |
| 2839 | // characters in the part's range | |
| 2840 | begin = ltr ? part.from : part.to - 1; | |
| 2841 | end = ltr ? part.to : part.from - 1; | |
| 2842 | } | |
| 2843 | ||
| 2844 | // A binary search to find the first character whose bounding box | |
| 2845 | // starts after the coordinates. If we run across any whose box wrap | |
| 2846 | // the coordinates, store that. | |
| 2847 | var chAround = null, boxAround = null; | |
| 2848 | var ch = findFirst(function (ch) { | |
| 2849 | var box = measureCharPrepared(cm, preparedMeasure, ch); | |
| 2850 | box.top += widgetHeight$$1; box.bottom += widgetHeight$$1; | |
| 2851 | if (!boxIsAfter(box, x, y, false)) { return false } | |
| 2852 | if (box.top <= y && box.left <= x) { | |
| 2853 | chAround = ch; | |
| 2854 | boxAround = box; | |
| 2855 | } | |
| 2856 | return true | |
| 2857 | }, begin, end); | |
| 2858 | ||
| 2859 | var baseX, sticky, outside = false; | |
| 2860 | // If a box around the coordinates was found, use that | |
| 2861 | if (boxAround) { | |
| 2862 | // Distinguish coordinates nearer to the left or right side of the box | |
| 2863 | var atLeft = x - boxAround.left < boxAround.right - x, atStart = atLeft == ltr; | |
| 2864 | ch = chAround + (atStart ? 0 : 1); | |
| 2865 | sticky = atStart ? "after" : "before"; | |
| 2866 | baseX = atLeft ? boxAround.left : boxAround.right; | |
| 2867 | } else { | |
| 2868 | // (Adjust for extended bound, if necessary.) | |
| 2869 | if (!ltr && (ch == end || ch == begin)) { ch++; } | |
| 2870 | // To determine which side to associate with, get the box to the | |
| 2871 | // left of the character and compare it's vertical position to the | |
| 2872 | // coordinates | |
| 2873 | sticky = ch == 0 ? "after" : ch == lineObj.text.length ? "before" : | |
| 2874 | (measureCharPrepared(cm, preparedMeasure, ch - (ltr ? 1 : 0)).bottom + widgetHeight$$1 <= y) == ltr ? | |
| 2875 | "after" : "before"; | |
| 2876 | // Now get accurate coordinates for this place, in order to get a | |
| 2877 | // base X position | |
| 2878 | var coords = cursorCoords(cm, Pos(lineNo$$1, ch, sticky), "line", lineObj, preparedMeasure); | |
| 2879 | baseX = coords.left; | |
| 2880 | outside = y < coords.top || y >= coords.bottom; | |
| 2881 | } | |
| 2882 | ||
| 2883 | ch = skipExtendingChars(lineObj.text, ch, 1); | |
| 2884 | return PosWithInfo(lineNo$$1, ch, sticky, outside, x - baseX) | |
| 2885 | } | |
| 2886 | ||
| 2887 | function coordsBidiPart(cm, lineObj, lineNo$$1, preparedMeasure, order, x, y) { | |
| 2888 | // Bidi parts are sorted left-to-right, and in a non-line-wrapping | |
| 2889 | // situation, we can take this ordering to correspond to the visual | |
| 2890 | // ordering. This finds the first part whose end is after the given | |
| 2891 | // coordinates. | |
| 2892 | var index = findFirst(function (i) { | |
| 2893 | var part = order[i], ltr = part.level != 1; | |
| 2894 | return boxIsAfter(cursorCoords(cm, Pos(lineNo$$1, ltr ? part.to : part.from, ltr ? "before" : "after"), | |
| 2895 | "line", lineObj, preparedMeasure), x, y, true) | |
| 2896 | }, 0, order.length - 1); | |
| 2897 | var part = order[index]; | |
| 2898 | // If this isn't the first part, the part's start is also after | |
| 2899 | // the coordinates, and the coordinates aren't on the same line as | |
| 2900 | // that start, move one part back. | |
| 2901 | if (index > 0) { | |
| 2902 | var ltr = part.level != 1; | |
| 2903 | var start = cursorCoords(cm, Pos(lineNo$$1, ltr ? part.from : part.to, ltr ? "after" : "before"), | |
| 2904 | "line", lineObj, preparedMeasure); | |
| 2905 | if (boxIsAfter(start, x, y, true) && start.top > y) | |
| 2906 | { part = order[index - 1]; } | |
| 2907 | } | |
| 2908 | return part | |
| 2909 | } | |
| 2910 | ||
| 2911 | function coordsBidiPartWrapped(cm, lineObj, _lineNo, preparedMeasure, order, x, y) { | |
| 2912 | // In a wrapped line, rtl text on wrapping boundaries can do things | |
| 2913 | // that don't correspond to the ordering in our `order` array at | |
| 2914 | // all, so a binary search doesn't work, and we want to return a | |
| 2915 | // part that only spans one line so that the binary search in | |
| 2916 | // coordsCharInner is safe. As such, we first find the extent of the | |
| 2917 | // wrapped line, and then do a flat search in which we discard any | |
| 2918 | // spans that aren't on the line. | |
| 2919 | var ref = wrappedLineExtent(cm, lineObj, preparedMeasure, y); | |
| 2920 | var begin = ref.begin; | |
| 2921 | var end = ref.end; | |
| 2922 | if (/\s/.test(lineObj.text.charAt(end - 1))) { end--; } | |
| 2923 | var part = null, closestDist = null; | |
| 2924 | for (var i = 0; i < order.length; i++) { | |
| 2925 | var p = order[i]; | |
| 2926 | if (p.from >= end || p.to <= begin) { continue } | |
| 2927 | var ltr = p.level != 1; | |
| 2928 | var endX = measureCharPrepared(cm, preparedMeasure, ltr ? Math.min(end, p.to) - 1 : Math.max(begin, p.from)).right; | |
| 2929 | // Weigh against spans ending before this, so that they are only | |
| 2930 | // picked if nothing ends after | |
| 2931 | var dist = endX < x ? x - endX + 1e9 : endX - x; | |
| 2932 | if (!part || closestDist > dist) { | |
| 2933 | part = p; | |
| 2934 | closestDist = dist; | |
| 2935 | } | |
| 2936 | } | |
| 2937 | if (!part) { part = order[order.length - 1]; } | |
| 2938 | // Clip the part to the wrapped line. | |
| 2939 | if (part.from < begin) { part = {from: begin, to: part.to, level: part.level}; } | |
| 2940 | if (part.to > end) { part = {from: part.from, to: end, level: part.level}; } | |
| 2941 | return part | |
| 2942 | } | |
| 2943 | ||
| 2944 | var measureText; | |
| 2945 | // Compute the default text height. | |
| 2946 | function textHeight(display) { | |
| 2947 | if (display.cachedTextHeight != null) { return display.cachedTextHeight } | |
| 2948 | if (measureText == null) { | |
| 2949 | measureText = elt("pre"); | |
| 2950 | // Measure a bunch of lines, for browsers that compute | |
| 2951 | // fractional heights. | |
| 2952 | for (var i = 0; i < 49; ++i) { | |
| 2953 | measureText.appendChild(document.createTextNode("x")); | |
| 2954 | measureText.appendChild(elt("br")); | |
| 2955 | } | |
| 2956 | measureText.appendChild(document.createTextNode("x")); | |
| 2957 | } | |
| 2958 | removeChildrenAndAdd(display.measure, measureText); | |
| 2959 | var height = measureText.offsetHeight / 50; | |
| 2960 | if (height > 3) { display.cachedTextHeight = height; } | |
| 2961 | removeChildren(display.measure); | |
| 2962 | return height || 1 | |
| 2963 | } | |
| 2964 | ||
| 2965 | // Compute the default character width. | |
| 2966 | function charWidth(display) { | |
| 2967 | if (display.cachedCharWidth != null) { return display.cachedCharWidth } | |
| 2968 | var anchor = elt("span", "xxxxxxxxxx"); | |
| 2969 | var pre = elt("pre", [anchor]); | |
| 2970 | removeChildrenAndAdd(display.measure, pre); | |
| 2971 | var rect = anchor.getBoundingClientRect(), width = (rect.right - rect.left) / 10; | |
| 2972 | if (width > 2) { display.cachedCharWidth = width; } | |
| 2973 | return width || 10 | |
| 2974 | } | |
| 2975 | ||
| 2976 | // Do a bulk-read of the DOM positions and sizes needed to draw the | |
| 2977 | // view, so that we don't interleave reading and writing to the DOM. | |
| 2978 | function getDimensions(cm) { | |
| 2979 | var d = cm.display, left = {}, width = {}; | |
| 2980 | var gutterLeft = d.gutters.clientLeft; | |
| 2981 | for (var n = d.gutters.firstChild, i = 0; n; n = n.nextSibling, ++i) { | |
| 2982 | left[cm.options.gutters[i]] = n.offsetLeft + n.clientLeft + gutterLeft; | |
| 2983 | width[cm.options.gutters[i]] = n.clientWidth; | |
| 2984 | } | |
| 2985 | return {fixedPos: compensateForHScroll(d), | |
| 2986 | gutterTotalWidth: d.gutters.offsetWidth, | |
| 2987 | gutterLeft: left, | |
| 2988 | gutterWidth: width, | |
| 2989 | wrapperWidth: d.wrapper.clientWidth} | |
| 2990 | } | |
| 2991 | ||
| 2992 | // Computes display.scroller.scrollLeft + display.gutters.offsetWidth, | |
| 2993 | // but using getBoundingClientRect to get a sub-pixel-accurate | |
| 2994 | // result. | |
| 2995 | function compensateForHScroll(display) { | |
| 2996 | return display.scroller.getBoundingClientRect().left - display.sizer.getBoundingClientRect().left | |
| 2997 | } | |
| 2998 | ||
| 2999 | // Returns a function that estimates the height of a line, to use as | |
| 3000 | // first approximation until the line becomes visible (and is thus | |
| 3001 | // properly measurable). | |
| 3002 | function estimateHeight(cm) { | |
| 3003 | var th = textHeight(cm.display), wrapping = cm.options.lineWrapping; | |
| 3004 | var perLine = wrapping && Math.max(5, cm.display.scroller.clientWidth / charWidth(cm.display) - 3); | |
| 3005 | return function (line) { | |
| 3006 | if (lineIsHidden(cm.doc, line)) { return 0 } | |
| 3007 | ||
| 3008 | var widgetsHeight = 0; | |
| 3009 | if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) { | |
| 3010 | if (line.widgets[i].height) { widgetsHeight += line.widgets[i].height; } | |
| 3011 | } } | |
| 3012 | ||
| 3013 | if (wrapping) | |
| 3014 | { return widgetsHeight + (Math.ceil(line.text.length / perLine) || 1) * th } | |
| 3015 | else | |
| 3016 | { return widgetsHeight + th } | |
| 3017 | } | |
| 3018 | } | |
| 3019 | ||
| 3020 | function estimateLineHeights(cm) { | |
| 3021 | var doc = cm.doc, est = estimateHeight(cm); | |
| 3022 | doc.iter(function (line) { | |
| 3023 | var estHeight = est(line); | |
| 3024 | if (estHeight != line.height) { updateLineHeight(line, estHeight); } | |
| 3025 | }); | |
| 3026 | } | |
| 3027 | ||
| 3028 | // Given a mouse event, find the corresponding position. If liberal | |
| 3029 | // is false, it checks whether a gutter or scrollbar was clicked, | |
| 3030 | // and returns null if it was. forRect is used by rectangular | |
| 3031 | // selections, and tries to estimate a character position even for | |
| 3032 | // coordinates beyond the right of the text. | |
| 3033 | function posFromMouse(cm, e, liberal, forRect) { | |
| 3034 | var display = cm.display; | |
| 3035 | if (!liberal && e_target(e).getAttribute("cm-not-content") == "true") { return null } | |
| 3036 | ||
| 3037 | var x, y, space = display.lineSpace.getBoundingClientRect(); | |
| 3038 | // Fails unpredictably on IE[67] when mouse is dragged around quickly. | |
| 3039 | try { x = e.clientX - space.left; y = e.clientY - space.top; } | |
| 3040 | catch (e) { return null } | |
| 3041 | var coords = coordsChar(cm, x, y), line; | |
| 3042 | if (forRect && coords.xRel == 1 && (line = getLine(cm.doc, coords.line).text).length == coords.ch) { | |
| 3043 | var colDiff = countColumn(line, line.length, cm.options.tabSize) - line.length; | |
| 3044 | coords = Pos(coords.line, Math.max(0, Math.round((x - paddingH(cm.display).left) / charWidth(cm.display)) - colDiff)); | |
| 3045 | } | |
| 3046 | return coords | |
| 3047 | } | |
| 3048 | ||
| 3049 | // Find the view element corresponding to a given line. Return null | |
| 3050 | // when the line isn't visible. | |
| 3051 | function findViewIndex(cm, n) { | |
| 3052 | if (n >= cm.display.viewTo) { return null } | |
| 3053 | n -= cm.display.viewFrom; | |
| 3054 | if (n < 0) { return null } | |
| 3055 | var view = cm.display.view; | |
| 3056 | for (var i = 0; i < view.length; i++) { | |
| 3057 | n -= view[i].size; | |
| 3058 | if (n < 0) { return i } | |
| 3059 | } | |
| 3060 | } | |
| 3061 | ||
| 3062 | function updateSelection(cm) { | |
| 3063 | cm.display.input.showSelection(cm.display.input.prepareSelection()); | |
| 3064 | } | |
| 3065 | ||
| 3066 | function prepareSelection(cm, primary) { | |
| 3067 | if ( primary === void 0 ) primary = true; | |
| 3068 | ||
| 3069 | var doc = cm.doc, result = {}; | |
| 3070 | var curFragment = result.cursors = document.createDocumentFragment(); | |
| 3071 | var selFragment = result.selection = document.createDocumentFragment(); | |
| 3072 | ||
| 3073 | for (var i = 0; i < doc.sel.ranges.length; i++) { | |
| 3074 | if (!primary && i == doc.sel.primIndex) { continue } | |
| 3075 | var range$$1 = doc.sel.ranges[i]; | |
| 3076 | if (range$$1.from().line >= cm.display.viewTo || range$$1.to().line < cm.display.viewFrom) { continue } | |
| 3077 | var collapsed = range$$1.empty(); | |
| 3078 | if (collapsed || cm.options.showCursorWhenSelecting) | |
| 3079 | { drawSelectionCursor(cm, range$$1.head, curFragment); } | |
| 3080 | if (!collapsed) | |
| 3081 | { drawSelectionRange(cm, range$$1, selFragment); } | |
| 3082 | } | |
| 3083 | return result | |
| 3084 | } | |
| 3085 | ||
| 3086 | // Draws a cursor for the given range | |
| 3087 | function drawSelectionCursor(cm, head, output) { | |
| 3088 | var pos = cursorCoords(cm, head, "div", null, null, !cm.options.singleCursorHeightPerLine); | |
| 3089 | ||
| 3090 | var cursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor")); | |
| 3091 | cursor.style.left = pos.left + "px"; | |
| 3092 | cursor.style.top = pos.top + "px"; | |
| 3093 | cursor.style.height = Math.max(0, pos.bottom - pos.top) * cm.options.cursorHeight + "px"; | |
| 3094 | ||
| 3095 | if (pos.other) { | |
| 3096 | // Secondary cursor, shown when on a 'jump' in bi-directional text | |
| 3097 | var otherCursor = output.appendChild(elt("div", "\u00a0", "CodeMirror-cursor CodeMirror-secondarycursor")); | |
| 3098 | otherCursor.style.display = ""; | |
| 3099 | otherCursor.style.left = pos.other.left + "px"; | |
| 3100 | otherCursor.style.top = pos.other.top + "px"; | |
| 3101 | otherCursor.style.height = (pos.other.bottom - pos.other.top) * .85 + "px"; | |
| 3102 | } | |
| 3103 | } | |
| 3104 | ||
| 3105 | function cmpCoords(a, b) { return a.top - b.top || a.left - b.left } | |
| 3106 | ||
| 3107 | // Draws the given range as a highlighted selection | |
| 3108 | function drawSelectionRange(cm, range$$1, output) { | |
| 3109 | var display = cm.display, doc = cm.doc; | |
| 3110 | var fragment = document.createDocumentFragment(); | |
| 3111 | var padding = paddingH(cm.display), leftSide = padding.left; | |
| 3112 | var rightSide = Math.max(display.sizerWidth, displayWidth(cm) - display.sizer.offsetLeft) - padding.right; | |
| 3113 | var docLTR = doc.direction == "ltr"; | |
| 3114 | ||
| 3115 | function add(left, top, width, bottom) { | |
| 3116 | if (top < 0) { top = 0; } | |
| 3117 | top = Math.round(top); | |
| 3118 | bottom = Math.round(bottom); | |
| 3119 | fragment.appendChild(elt("div", null, "CodeMirror-selected", ("position: absolute; left: " + left + "px;\n top: " + top + "px; width: " + (width == null ? rightSide - left : width) + "px;\n height: " + (bottom - top) + "px"))); | |
| 3120 | } | |
| 3121 | ||
| 3122 | function drawForLine(line, fromArg, toArg) { | |
| 3123 | var lineObj = getLine(doc, line); | |
| 3124 | var lineLen = lineObj.text.length; | |
| 3125 | var start, end; | |
| 3126 | function coords(ch, bias) { | |
| 3127 | return charCoords(cm, Pos(line, ch), "div", lineObj, bias) | |
| 3128 | } | |
| 3129 | ||
| 3130 | function wrapX(pos, dir, side) { | |
| 3131 | var extent = wrappedLineExtentChar(cm, lineObj, null, pos); | |
| 3132 | var prop = (dir == "ltr") == (side == "after") ? "left" : "right"; | |
| 3133 | var ch = side == "after" ? extent.begin : extent.end - (/\s/.test(lineObj.text.charAt(extent.end - 1)) ? 2 : 1); | |
| 3134 | return coords(ch, prop)[prop] | |
| 3135 | } | |
| 3136 | ||
| 3137 | var order = getOrder(lineObj, doc.direction); | |
| 3138 | iterateBidiSections(order, fromArg || 0, toArg == null ? lineLen : toArg, function (from, to, dir, i) { | |
| 3139 | var ltr = dir == "ltr"; | |
| 3140 | var fromPos = coords(from, ltr ? "left" : "right"); | |
| 3141 | var toPos = coords(to - 1, ltr ? "right" : "left"); | |
| 3142 | ||
| 3143 | var openStart = fromArg == null && from == 0, openEnd = toArg == null && to == lineLen; | |
| 3144 | var first = i == 0, last = !order || i == order.length - 1; | |
| 3145 | if (toPos.top - fromPos.top <= 3) { // Single line | |
| 3146 | var openLeft = (docLTR ? openStart : openEnd) && first; | |
| 3147 | var openRight = (docLTR ? openEnd : openStart) && last; | |
| 3148 | var left = openLeft ? leftSide : (ltr ? fromPos : toPos).left; | |
| 3149 | var right = openRight ? rightSide : (ltr ? toPos : fromPos).right; | |
| 3150 | add(left, fromPos.top, right - left, fromPos.bottom); | |
| 3151 | } else { // Multiple lines | |
| 3152 | var topLeft, topRight, botLeft, botRight; | |
| 3153 | if (ltr) { | |
| 3154 | topLeft = docLTR && openStart && first ? leftSide : fromPos.left; | |
| 3155 | topRight = docLTR ? rightSide : wrapX(from, dir, "before"); | |
| 3156 | botLeft = docLTR ? leftSide : wrapX(to, dir, "after"); | |
| 3157 | botRight = docLTR && openEnd && last ? rightSide : toPos.right; | |
| 3158 | } else { | |
| 3159 | topLeft = !docLTR ? leftSide : wrapX(from, dir, "before"); | |
| 3160 | topRight = !docLTR && openStart && first ? rightSide : fromPos.right; | |
| 3161 | botLeft = !docLTR && openEnd && last ? leftSide : toPos.left; | |
| 3162 | botRight = !docLTR ? rightSide : wrapX(to, dir, "after"); | |
| 3163 | } | |
| 3164 | add(topLeft, fromPos.top, topRight - topLeft, fromPos.bottom); | |
| 3165 | if (fromPos.bottom < toPos.top) { add(leftSide, fromPos.bottom, null, toPos.top); } | |
| 3166 | add(botLeft, toPos.top, botRight - botLeft, toPos.bottom); | |
| 3167 | } | |
| 3168 | ||
| 3169 | if (!start || cmpCoords(fromPos, start) < 0) { start = fromPos; } | |
| 3170 | if (cmpCoords(toPos, start) < 0) { start = toPos; } | |
| 3171 | if (!end || cmpCoords(fromPos, end) < 0) { end = fromPos; } | |
| 3172 | if (cmpCoords(toPos, end) < 0) { end = toPos; } | |
| 3173 | }); | |
| 3174 | return {start: start, end: end} | |
| 3175 | } | |
| 3176 | ||
| 3177 | var sFrom = range$$1.from(), sTo = range$$1.to(); | |
| 3178 | if (sFrom.line == sTo.line) { | |
| 3179 | drawForLine(sFrom.line, sFrom.ch, sTo.ch); | |
| 3180 | } else { | |
| 3181 | var fromLine = getLine(doc, sFrom.line), toLine = getLine(doc, sTo.line); | |
| 3182 | var singleVLine = visualLine(fromLine) == visualLine(toLine); | |
| 3183 | var leftEnd = drawForLine(sFrom.line, sFrom.ch, singleVLine ? fromLine.text.length + 1 : null).end; | |
| 3184 | var rightStart = drawForLine(sTo.line, singleVLine ? 0 : null, sTo.ch).start; | |
| 3185 | if (singleVLine) { | |
| 3186 | if (leftEnd.top < rightStart.top - 2) { | |
| 3187 | add(leftEnd.right, leftEnd.top, null, leftEnd.bottom); | |
| 3188 | add(leftSide, rightStart.top, rightStart.left, rightStart.bottom); | |
| 3189 | } else { | |
| 3190 | add(leftEnd.right, leftEnd.top, rightStart.left - leftEnd.right, leftEnd.bottom); | |
| 3191 | } | |
| 3192 | } | |
| 3193 | if (leftEnd.bottom < rightStart.top) | |
| 3194 | { add(leftSide, leftEnd.bottom, null, rightStart.top); } | |
| 3195 | } | |
| 3196 | ||
| 3197 | output.appendChild(fragment); | |
| 3198 | } | |
| 3199 | ||
| 3200 | // Cursor-blinking | |
| 3201 | function restartBlink(cm) { | |
| 3202 | if (!cm.state.focused) { return } | |
| 3203 | var display = cm.display; | |
| 3204 | clearInterval(display.blinker); | |
| 3205 | var on = true; | |
| 3206 | display.cursorDiv.style.visibility = ""; | |
| 3207 | if (cm.options.cursorBlinkRate > 0) | |
| 3208 | { display.blinker = setInterval(function () { return display.cursorDiv.style.visibility = (on = !on) ? "" : "hidden"; }, | |
| 3209 | cm.options.cursorBlinkRate); } | |
| 3210 | else if (cm.options.cursorBlinkRate < 0) | |
| 3211 | { display.cursorDiv.style.visibility = "hidden"; } | |
| 3212 | } | |
| 3213 | ||
| 3214 | function ensureFocus(cm) { | |
| 3215 | if (!cm.state.focused) { cm.display.input.focus(); onFocus(cm); } | |
| 3216 | } | |
| 3217 | ||
| 3218 | function delayBlurEvent(cm) { | |
| 3219 | cm.state.delayingBlurEvent = true; | |
| 3220 | setTimeout(function () { if (cm.state.delayingBlurEvent) { | |
| 3221 | cm.state.delayingBlurEvent = false; | |
| 3222 | onBlur(cm); | |
| 3223 | } }, 100); | |
| 3224 | } | |
| 3225 | ||
| 3226 | function onFocus(cm, e) { | |
| 3227 | if (cm.state.delayingBlurEvent) { cm.state.delayingBlurEvent = false; } | |
| 3228 | ||
| 3229 | if (cm.options.readOnly == "nocursor") { return } | |
| 3230 | if (!cm.state.focused) { | |
| 3231 | signal(cm, "focus", cm, e); | |
| 3232 | cm.state.focused = true; | |
| 3233 | addClass(cm.display.wrapper, "CodeMirror-focused"); | |
| 3234 | // This test prevents this from firing when a context | |
| 3235 | // menu is closed (since the input reset would kill the | |
| 3236 | // select-all detection hack) | |
| 3237 | if (!cm.curOp && cm.display.selForContextMenu != cm.doc.sel) { | |
| 3238 | cm.display.input.reset(); | |
| 3239 | if (webkit) { setTimeout(function () { return cm.display.input.reset(true); }, 20); } // Issue #1730 | |
| 3240 | } | |
| 3241 | cm.display.input.receivedFocus(); | |
| 3242 | } | |
| 3243 | restartBlink(cm); | |
| 3244 | } | |
| 3245 | function onBlur(cm, e) { | |
| 3246 | if (cm.state.delayingBlurEvent) { return } | |
| 3247 | ||
| 3248 | if (cm.state.focused) { | |
| 3249 | signal(cm, "blur", cm, e); | |
| 3250 | cm.state.focused = false; | |
| 3251 | rmClass(cm.display.wrapper, "CodeMirror-focused"); | |
| 3252 | } | |
| 3253 | clearInterval(cm.display.blinker); | |
| 3254 | setTimeout(function () { if (!cm.state.focused) { cm.display.shift = false; } }, 150); | |
| 3255 | } | |
| 3256 | ||
| 3257 | // Read the actual heights of the rendered lines, and update their | |
| 3258 | // stored heights to match. | |
| 3259 | function updateHeightsInViewport(cm) { | |
| 3260 | var display = cm.display; | |
| 3261 | var prevBottom = display.lineDiv.offsetTop; | |
| 3262 | for (var i = 0; i < display.view.length; i++) { | |
| 3263 | var cur = display.view[i], height = (void 0); | |
| 3264 | if (cur.hidden) { continue } | |
| 3265 | if (ie && ie_version < 8) { | |
| 3266 | var bot = cur.node.offsetTop + cur.node.offsetHeight; | |
| 3267 | height = bot - prevBottom; | |
| 3268 | prevBottom = bot; | |
| 3269 | } else { | |
| 3270 | var box = cur.node.getBoundingClientRect(); | |
| 3271 | height = box.bottom - box.top; | |
| 3272 | } | |
| 3273 | var diff = cur.line.height - height; | |
| 3274 | if (height < 2) { height = textHeight(display); } | |
| 3275 | if (diff > .005 || diff < -.005) { | |
| 3276 | updateLineHeight(cur.line, height); | |
| 3277 | updateWidgetHeight(cur.line); | |
| 3278 | if (cur.rest) { for (var j = 0; j < cur.rest.length; j++) | |
| 3279 | { updateWidgetHeight(cur.rest[j]); } } | |
| 3280 | } | |
| 3281 | } | |
| 3282 | } | |
| 3283 | ||
| 3284 | // Read and store the height of line widgets associated with the | |
| 3285 | // given line. | |
| 3286 | function updateWidgetHeight(line) { | |
| 3287 | if (line.widgets) { for (var i = 0; i < line.widgets.length; ++i) { | |
| 3288 | var w = line.widgets[i], parent = w.node.parentNode; | |
| 3289 | if (parent) { w.height = parent.offsetHeight; } | |
| 3290 | } } | |
| 3291 | } | |
| 3292 | ||
| 3293 | // Compute the lines that are visible in a given viewport (defaults | |
| 3294 | // the the current scroll position). viewport may contain top, | |
| 3295 | // height, and ensure (see op.scrollToPos) properties. | |
| 3296 | function visibleLines(display, doc, viewport) { | |
| 3297 | var top = viewport && viewport.top != null ? Math.max(0, viewport.top) : display.scroller.scrollTop; | |
| 3298 | top = Math.floor(top - paddingTop(display)); | |
| 3299 | var bottom = viewport && viewport.bottom != null ? viewport.bottom : top + display.wrapper.clientHeight; | |
| 3300 | ||
| 3301 | var from = lineAtHeight(doc, top), to = lineAtHeight(doc, bottom); | |
| 3302 | // Ensure is a {from: {line, ch}, to: {line, ch}} object, and | |
| 3303 | // forces those lines into the viewport (if possible). | |
| 3304 | if (viewport && viewport.ensure) { | |
| 3305 | var ensureFrom = viewport.ensure.from.line, ensureTo = viewport.ensure.to.line; | |
| 3306 | if (ensureFrom < from) { | |
| 3307 | from = ensureFrom; | |
| 3308 | to = lineAtHeight(doc, heightAtLine(getLine(doc, ensureFrom)) + display.wrapper.clientHeight); | |
| 3309 | } else if (Math.min(ensureTo, doc.lastLine()) >= to) { | |
| 3310 | from = lineAtHeight(doc, heightAtLine(getLine(doc, ensureTo)) - display.wrapper.clientHeight); | |
| 3311 | to = ensureTo; | |
| 3312 | } | |
| 3313 | } | |
| 3314 | return {from: from, to: Math.max(to, from + 1)} | |
| 3315 | } | |
| 3316 | ||
| 3317 | // Re-align line numbers and gutter marks to compensate for | |
| 3318 | // horizontal scrolling. | |
| 3319 | function alignHorizontally(cm) { | |
| 3320 | var display = cm.display, view = display.view; | |
| 3321 | if (!display.alignWidgets && (!display.gutters.firstChild || !cm.options.fixedGutter)) { return } | |
| 3322 | var comp = compensateForHScroll(display) - display.scroller.scrollLeft + cm.doc.scrollLeft; | |
| 3323 | var gutterW = display.gutters.offsetWidth, left = comp + "px"; | |
| 3324 | for (var i = 0; i < view.length; i++) { if (!view[i].hidden) { | |
| 3325 | if (cm.options.fixedGutter) { | |
| 3326 | if (view[i].gutter) | |
| 3327 | { view[i].gutter.style.left = left; } | |
| 3328 | if (view[i].gutterBackground) | |
| 3329 | { view[i].gutterBackground.style.left = left; } | |
| 3330 | } | |
| 3331 | var align = view[i].alignable; | |
| 3332 | if (align) { for (var j = 0; j < align.length; j++) | |
| 3333 | { align[j].style.left = left; } } | |
| 3334 | } } | |
| 3335 | if (cm.options.fixedGutter) | |
| 3336 | { display.gutters.style.left = (comp + gutterW) + "px"; } | |
| 3337 | } | |
| 3338 | ||
| 3339 | // Used to ensure that the line number gutter is still the right | |
| 3340 | // size for the current document size. Returns true when an update | |
| 3341 | // is needed. | |
| 3342 | function maybeUpdateLineNumberWidth(cm) { | |
| 3343 | if (!cm.options.lineNumbers) { return false } | |
| 3344 | var doc = cm.doc, last = lineNumberFor(cm.options, doc.first + doc.size - 1), display = cm.display; | |
| 3345 | if (last.length != display.lineNumChars) { | |
| 3346 | var test = display.measure.appendChild(elt("div", [elt("div", last)], | |
| 3347 | "CodeMirror-linenumber CodeMirror-gutter-elt")); | |
| 3348 | var innerW = test.firstChild.offsetWidth, padding = test.offsetWidth - innerW; | |
| 3349 | display.lineGutter.style.width = ""; | |
| 3350 | display.lineNumInnerWidth = Math.max(innerW, display.lineGutter.offsetWidth - padding) + 1; | |
| 3351 | display.lineNumWidth = display.lineNumInnerWidth + padding; | |
| 3352 | display.lineNumChars = display.lineNumInnerWidth ? last.length : -1; | |
| 3353 | display.lineGutter.style.width = display.lineNumWidth + "px"; | |
| 3354 | updateGutterSpace(cm); | |
| 3355 | return true | |
| 3356 | } | |
| 3357 | return false | |
| 3358 | } | |
| 3359 | ||
| 3360 | // SCROLLING THINGS INTO VIEW | |
| 3361 | ||
| 3362 | // If an editor sits on the top or bottom of the window, partially | |
| 3363 | // scrolled out of view, this ensures that the cursor is visible. | |
| 3364 | function maybeScrollWindow(cm, rect) { | |
| 3365 | if (signalDOMEvent(cm, "scrollCursorIntoView")) { return } | |
| 3366 | ||
| 3367 | var display = cm.display, box = display.sizer.getBoundingClientRect(), doScroll = null; | |
| 3368 | if (rect.top + box.top < 0) { doScroll = true; } | |
| 3369 | else if (rect.bottom + box.top > (window.innerHeight || document.documentElement.clientHeight)) { doScroll = false; } | |
| 3370 | if (doScroll != null && !phantom) { | |
| 3371 | var scrollNode = elt("div", "\u200b", null, ("position: absolute;\n top: " + (rect.top - display.viewOffset - paddingTop(cm.display)) + "px;\n height: " + (rect.bottom - rect.top + scrollGap(cm) + display.barHeight) + "px;\n left: " + (rect.left) + "px; width: " + (Math.max(2, rect.right - rect.left)) + "px;")); | |
| 3372 | cm.display.lineSpace.appendChild(scrollNode); | |
| 3373 | scrollNode.scrollIntoView(doScroll); | |
| 3374 | cm.display.lineSpace.removeChild(scrollNode); | |
| 3375 | } | |
| 3376 | } | |
| 3377 | ||
| 3378 | // Scroll a given position into view (immediately), verifying that | |
| 3379 | // it actually became visible (as line heights are accurately | |
| 3380 | // measured, the position of something may 'drift' during drawing). | |
| 3381 | function scrollPosIntoView(cm, pos, end, margin) { | |
| 3382 | if (margin == null) { margin = 0; } | |
| 3383 | var rect; | |
| 3384 | if (!cm.options.lineWrapping && pos == end) { | |
| 3385 | // Set pos and end to the cursor positions around the character pos sticks to | |
| 3386 | // If pos.sticky == "before", that is around pos.ch - 1, otherwise around pos.ch | |
| 3387 | // If pos == Pos(_, 0, "before"), pos and end are unchanged | |
| 3388 | pos = pos.ch ? Pos(pos.line, pos.sticky == "before" ? pos.ch - 1 : pos.ch, "after") : pos; | |
| 3389 | end = pos.sticky == "before" ? Pos(pos.line, pos.ch + 1, "before") : pos; | |
| 3390 | } | |
| 3391 | for (var limit = 0; limit < 5; limit++) { | |
| 3392 | var changed = false; | |
| 3393 | var coords = cursorCoords(cm, pos); | |
| 3394 | var endCoords = !end || end == pos ? coords : cursorCoords(cm, end); | |
| 3395 | rect = {left: Math.min(coords.left, endCoords.left), | |
| 3396 | top: Math.min(coords.top, endCoords.top) - margin, | |
| 3397 | right: Math.max(coords.left, endCoords.left), | |
| 3398 | bottom: Math.max(coords.bottom, endCoords.bottom) + margin}; | |
| 3399 | var scrollPos = calculateScrollPos(cm, rect); | |
| 3400 | var startTop = cm.doc.scrollTop, startLeft = cm.doc.scrollLeft; | |
| 3401 | if (scrollPos.scrollTop != null) { | |
| 3402 | updateScrollTop(cm, scrollPos.scrollTop); | |
| 3403 | if (Math.abs(cm.doc.scrollTop - startTop) > 1) { changed = true; } | |
| 3404 | } | |
| 3405 | if (scrollPos.scrollLeft != null) { | |
| 3406 | setScrollLeft(cm, scrollPos.scrollLeft); | |
| 3407 | if (Math.abs(cm.doc.scrollLeft - startLeft) > 1) { changed = true; } | |
| 3408 | } | |
| 3409 | if (!changed) { break } | |
| 3410 | } | |
| 3411 | return rect | |
| 3412 | } | |
| 3413 | ||
| 3414 | // Scroll a given set of coordinates into view (immediately). | |
| 3415 | function scrollIntoView(cm, rect) { | |
| 3416 | var scrollPos = calculateScrollPos(cm, rect); | |
| 3417 | if (scrollPos.scrollTop != null) { updateScrollTop(cm, scrollPos.scrollTop); } | |
| 3418 | if (scrollPos.scrollLeft != null) { setScrollLeft(cm, scrollPos.scrollLeft); } | |
| 3419 | } | |
| 3420 | ||
| 3421 | // Calculate a new scroll position needed to scroll the given | |
| 3422 | // rectangle into view. Returns an object with scrollTop and | |
| 3423 | // scrollLeft properties. When these are undefined, the | |
| 3424 | // vertical/horizontal position does not need to be adjusted. | |
| 3425 | function calculateScrollPos(cm, rect) { | |
| 3426 | var display = cm.display, snapMargin = textHeight(cm.display); | |
| 3427 | if (rect.top < 0) { rect.top = 0; } | |
| 3428 | var screentop = cm.curOp && cm.curOp.scrollTop != null ? cm.curOp.scrollTop : display.scroller.scrollTop; | |
| 3429 | var screen = displayHeight(cm), result = {}; | |
| 3430 | if (rect.bottom - rect.top > screen) { rect.bottom = rect.top + screen; } | |
| 3431 | var docBottom = cm.doc.height + paddingVert(display); | |
| 3432 | var atTop = rect.top < snapMargin, atBottom = rect.bottom > docBottom - snapMargin; | |
| 3433 | if (rect.top < screentop) { | |
| 3434 | result.scrollTop = atTop ? 0 : rect.top; | |
| 3435 | } else if (rect.bottom > screentop + screen) { | |
| 3436 | var newTop = Math.min(rect.top, (atBottom ? docBottom : rect.bottom) - screen); | |
| 3437 | if (newTop != screentop) { result.scrollTop = newTop; } | |
| 3438 | } | |
| 3439 | ||
| 3440 | var screenleft = cm.curOp && cm.curOp.scrollLeft != null ? cm.curOp.scrollLeft : display.scroller.scrollLeft; | |
| 3441 | var screenw = displayWidth(cm) - (cm.options.fixedGutter ? display.gutters.offsetWidth : 0); | |
| 3442 | var tooWide = rect.right - rect.left > screenw; | |
| 3443 | if (tooWide) { rect.right = rect.left + screenw; } | |
| 3444 | if (rect.left < 10) | |
| 3445 | { result.scrollLeft = 0; } | |
| 3446 | else if (rect.left < screenleft) | |
| 3447 | { result.scrollLeft = Math.max(0, rect.left - (tooWide ? 0 : 10)); } | |
| 3448 | else if (rect.right > screenw + screenleft - 3) | |
| 3449 | { result.scrollLeft = rect.right + (tooWide ? 0 : 10) - screenw; } | |
| 3450 | return result | |
| 3451 | } | |
| 3452 | ||
| 3453 | // Store a relative adjustment to the scroll position in the current | |
| 3454 | // operation (to be applied when the operation finishes). | |
| 3455 | function addToScrollTop(cm, top) { | |
| 3456 | if (top == null) { return } | |
| 3457 | resolveScrollToPos(cm); | |
| 3458 | cm.curOp.scrollTop = (cm.curOp.scrollTop == null ? cm.doc.scrollTop : cm.curOp.scrollTop) + top; | |
| 3459 | } | |
| 3460 | ||
| 3461 | // Make sure that at the end of the operation the current cursor is | |
| 3462 | // shown. | |
| 3463 | function ensureCursorVisible(cm) { | |
| 3464 | resolveScrollToPos(cm); | |
| 3465 | var cur = cm.getCursor(); | |
| 3466 | cm.curOp.scrollToPos = {from: cur, to: cur, margin: cm.options.cursorScrollMargin}; | |
| 3467 | } | |
| 3468 | ||
| 3469 | function scrollToCoords(cm, x, y) { | |
| 3470 | if (x != null || y != null) { resolveScrollToPos(cm); } | |
| 3471 | if (x != null) { cm.curOp.scrollLeft = x; } | |
| 3472 | if (y != null) { cm.curOp.scrollTop = y; } | |
| 3473 | } | |
| 3474 | ||
| 3475 | function scrollToRange(cm, range$$1) { | |
| 3476 | resolveScrollToPos(cm); | |
| 3477 | cm.curOp.scrollToPos = range$$1; | |
| 3478 | } | |
| 3479 | ||
| 3480 | // When an operation has its scrollToPos property set, and another | |
| 3481 | // scroll action is applied before the end of the operation, this | |
| 3482 | // 'simulates' scrolling that position into view in a cheap way, so | |
| 3483 | // that the effect of intermediate scroll commands is not ignored. | |
| 3484 | function resolveScrollToPos(cm) { | |
| 3485 | var range$$1 = cm.curOp.scrollToPos; | |
| 3486 | if (range$$1) { | |
| 3487 | cm.curOp.scrollToPos = null; | |
| 3488 | var from = estimateCoords(cm, range$$1.from), to = estimateCoords(cm, range$$1.to); | |
| 3489 | scrollToCoordsRange(cm, from, to, range$$1.margin); | |
| 3490 | } | |
| 3491 | } | |
| 3492 | ||
| 3493 | function scrollToCoordsRange(cm, from, to, margin) { | |
| 3494 | var sPos = calculateScrollPos(cm, { | |
| 3495 | left: Math.min(from.left, to.left), | |
| 3496 | top: Math.min(from.top, to.top) - margin, | |
| 3497 | right: Math.max(from.right, to.right), | |
| 3498 | bottom: Math.max(from.bottom, to.bottom) + margin | |
| 3499 | }); | |
| 3500 | scrollToCoords(cm, sPos.scrollLeft, sPos.scrollTop); | |
| 3501 | } | |
| 3502 | ||
| 3503 | // Sync the scrollable area and scrollbars, ensure the viewport | |
| 3504 | // covers the visible area. | |
| 3505 | function updateScrollTop(cm, val) { | |
| 3506 | if (Math.abs(cm.doc.scrollTop - val) < 2) { return } | |
| 3507 | if (!gecko) { updateDisplaySimple(cm, {top: val}); } | |
| 3508 | setScrollTop(cm, val, true); | |
| 3509 | if (gecko) { updateDisplaySimple(cm); } | |
| 3510 | startWorker(cm, 100); | |
| 3511 | } | |
| 3512 | ||
| 3513 | function setScrollTop(cm, val, forceScroll) { | |
| 3514 | val = Math.min(cm.display.scroller.scrollHeight - cm.display.scroller.clientHeight, val); | |
| 3515 | if (cm.display.scroller.scrollTop == val && !forceScroll) { return } | |
| 3516 | cm.doc.scrollTop = val; | |
| 3517 | cm.display.scrollbars.setScrollTop(val); | |
| 3518 | if (cm.display.scroller.scrollTop != val) { cm.display.scroller.scrollTop = val; } | |
| 3519 | } | |
| 3520 | ||
| 3521 | // Sync scroller and scrollbar, ensure the gutter elements are | |
| 3522 | // aligned. | |
| 3523 | function setScrollLeft(cm, val, isScroller, forceScroll) { | |
| 3524 | val = Math.min(val, cm.display.scroller.scrollWidth - cm.display.scroller.clientWidth); | |
| 3525 | if ((isScroller ? val == cm.doc.scrollLeft : Math.abs(cm.doc.scrollLeft - val) < 2) && !forceScroll) { return } | |
| 3526 | cm.doc.scrollLeft = val; | |
| 3527 | alignHorizontally(cm); | |
| 3528 | if (cm.display.scroller.scrollLeft != val) { cm.display.scroller.scrollLeft = val; } | |
| 3529 | cm.display.scrollbars.setScrollLeft(val); | |
| 3530 | } | |
| 3531 | ||
| 3532 | // SCROLLBARS | |
| 3533 | ||
| 3534 | // Prepare DOM reads needed to update the scrollbars. Done in one | |
| 3535 | // shot to minimize update/measure roundtrips. | |
| 3536 | function measureForScrollbars(cm) { | |
| 3537 | var d = cm.display, gutterW = d.gutters.offsetWidth; | |
| 3538 | var docH = Math.round(cm.doc.height + paddingVert(cm.display)); | |
| 3539 | return { | |
| 3540 | clientHeight: d.scroller.clientHeight, | |
| 3541 | viewHeight: d.wrapper.clientHeight, | |
| 3542 | scrollWidth: d.scroller.scrollWidth, clientWidth: d.scroller.clientWidth, | |
| 3543 | viewWidth: d.wrapper.clientWidth, | |
| 3544 | barLeft: cm.options.fixedGutter ? gutterW : 0, | |
| 3545 | docHeight: docH, | |
| 3546 | scrollHeight: docH + scrollGap(cm) + d.barHeight, | |
| 3547 | nativeBarWidth: d.nativeBarWidth, | |
| 3548 | gutterWidth: gutterW | |
| 3549 | } | |
| 3550 | } | |
| 3551 | ||
| 3552 | var NativeScrollbars = function(place, scroll, cm) { | |
| 3553 | this.cm = cm; | |
| 3554 | var vert = this.vert = elt("div", [elt("div", null, null, "min-width: 1px")], "CodeMirror-vscrollbar"); | |
| 3555 | var horiz = this.horiz = elt("div", [elt("div", null, null, "height: 100%; min-height: 1px")], "CodeMirror-hscrollbar"); | |
| 3556 | vert.tabIndex = horiz.tabIndex = -1; | |
| 3557 | place(vert); place(horiz); | |
| 3558 | ||
| 3559 | on(vert, "scroll", function () { | |
| 3560 | if (vert.clientHeight) { scroll(vert.scrollTop, "vertical"); } | |
| 3561 | }); | |
| 3562 | on(horiz, "scroll", function () { | |
| 3563 | if (horiz.clientWidth) { scroll(horiz.scrollLeft, "horizontal"); } | |
| 3564 | }); | |
| 3565 | ||
| 3566 | this.checkedZeroWidth = false; | |
| 3567 | // Need to set a minimum width to see the scrollbar on IE7 (but must not set it on IE8). | |
| 3568 | if (ie && ie_version < 8) { this.horiz.style.minHeight = this.vert.style.minWidth = "18px"; } | |
| 3569 | }; | |
| 3570 | ||
| 3571 | NativeScrollbars.prototype.update = function (measure) { | |
| 3572 | var needsH = measure.scrollWidth > measure.clientWidth + 1; | |
| 3573 | var needsV = measure.scrollHeight > measure.clientHeight + 1; | |
| 3574 | var sWidth = measure.nativeBarWidth; | |
| 3575 | ||
| 3576 | if (needsV) { | |
| 3577 | this.vert.style.display = "block"; | |
| 3578 | this.vert.style.bottom = needsH ? sWidth + "px" : "0"; | |
| 3579 | var totalHeight = measure.viewHeight - (needsH ? sWidth : 0); | |
| 3580 | // A bug in IE8 can cause this value to be negative, so guard it. | |
| 3581 | this.vert.firstChild.style.height = | |
| 3582 | Math.max(0, measure.scrollHeight - measure.clientHeight + totalHeight) + "px"; | |
| 3583 | } else { | |
| 3584 | this.vert.style.display = ""; | |
| 3585 | this.vert.firstChild.style.height = "0"; | |
| 3586 | } | |
| 3587 | ||
| 3588 | if (needsH) { | |
| 3589 | this.horiz.style.display = "block"; | |
| 3590 | this.horiz.style.right = needsV ? sWidth + "px" : "0"; | |
| 3591 | this.horiz.style.left = measure.barLeft + "px"; | |
| 3592 | var totalWidth = measure.viewWidth - measure.barLeft - (needsV ? sWidth : 0); | |
| 3593 | this.horiz.firstChild.style.width = | |
| 3594 | Math.max(0, measure.scrollWidth - measure.clientWidth + totalWidth) + "px"; | |
| 3595 | } else { | |
| 3596 | this.horiz.style.display = ""; | |
| 3597 | this.horiz.firstChild.style.width = "0"; | |
| 3598 | } | |
| 3599 | ||
| 3600 | if (!this.checkedZeroWidth && measure.clientHeight > 0) { | |
| 3601 | if (sWidth == 0) { this.zeroWidthHack(); } | |
| 3602 | this.checkedZeroWidth = true; | |
| 3603 | } | |
| 3604 | ||
| 3605 | return {right: needsV ? sWidth : 0, bottom: needsH ? sWidth : 0} | |
| 3606 | }; | |
| 3607 | ||
| 3608 | NativeScrollbars.prototype.setScrollLeft = function (pos) { | |
| 3609 | if (this.horiz.scrollLeft != pos) { this.horiz.scrollLeft = pos; } | |
| 3610 | if (this.disableHoriz) { this.enableZeroWidthBar(this.horiz, this.disableHoriz, "horiz"); } | |
| 3611 | }; | |
| 3612 | ||
| 3613 | NativeScrollbars.prototype.setScrollTop = function (pos) { | |
| 3614 | if (this.vert.scrollTop != pos) { this.vert.scrollTop = pos; } | |
| 3615 | if (this.disableVert) { this.enableZeroWidthBar(this.vert, this.disableVert, "vert"); } | |
| 3616 | }; | |
| 3617 | ||
| 3618 | NativeScrollbars.prototype.zeroWidthHack = function () { | |
| 3619 | var w = mac && !mac_geMountainLion ? "12px" : "18px"; | |
| 3620 | this.horiz.style.height = this.vert.style.width = w; | |
| 3621 | this.horiz.style.pointerEvents = this.vert.style.pointerEvents = "none"; | |
| 3622 | this.disableHoriz = new Delayed; | |
| 3623 | this.disableVert = new Delayed; | |
| 3624 | }; | |
| 3625 | ||
| 3626 | NativeScrollbars.prototype.enableZeroWidthBar = function (bar, delay, type) { | |
| 3627 | bar.style.pointerEvents = "auto"; | |
| 3628 | function maybeDisable() { | |
| 3629 | // To find out whether the scrollbar is still visible, we | |
| 3630 | // check whether the element under the pixel in the bottom | |
| 3631 | // right corner of the scrollbar box is the scrollbar box | |
| 3632 | // itself (when the bar is still visible) or its filler child | |
| 3633 | // (when the bar is hidden). If it is still visible, we keep | |
| 3634 | // it enabled, if it's hidden, we disable pointer events. | |
| 3635 | var box = bar.getBoundingClientRect(); | |
| 3636 | var elt$$1 = type == "vert" ? document.elementFromPoint(box.right - 1, (box.top + box.bottom) / 2) | |
| 3637 | : document.elementFromPoint((box.right + box.left) / 2, box.bottom - 1); | |
| 3638 | if (elt$$1 != bar) { bar.style.pointerEvents = "none"; } | |
| 3639 | else { delay.set(1000, maybeDisable); } | |
| 3640 | } | |
| 3641 | delay.set(1000, maybeDisable); | |
| 3642 | }; | |
| 3643 | ||
| 3644 | NativeScrollbars.prototype.clear = function () { | |
| 3645 | var parent = this.horiz.parentNode; | |
| 3646 | parent.removeChild(this.horiz); | |
| 3647 | parent.removeChild(this.vert); | |
| 3648 | }; | |
| 3649 | ||
| 3650 | var NullScrollbars = function () {}; | |
| 3651 | ||
| 3652 | NullScrollbars.prototype.update = function () { return {bottom: 0, right: 0} }; | |
| 3653 | NullScrollbars.prototype.setScrollLeft = function () {}; | |
| 3654 | NullScrollbars.prototype.setScrollTop = function () {}; | |
| 3655 | NullScrollbars.prototype.clear = function () {}; | |
| 3656 | ||
| 3657 | function updateScrollbars(cm, measure) { | |
| 3658 | if (!measure) { measure = measureForScrollbars(cm); } | |
| 3659 | var startWidth = cm.display.barWidth, startHeight = cm.display.barHeight; | |
| 3660 | updateScrollbarsInner(cm, measure); | |
| 3661 | for (var i = 0; i < 4 && startWidth != cm.display.barWidth || startHeight != cm.display.barHeight; i++) { | |
| 3662 | if (startWidth != cm.display.barWidth && cm.options.lineWrapping) | |
| 3663 | { updateHeightsInViewport(cm); } | |
| 3664 | updateScrollbarsInner(cm, measureForScrollbars(cm)); | |
| 3665 | startWidth = cm.display.barWidth; startHeight = cm.display.barHeight; | |
| 3666 | } | |
| 3667 | } | |
| 3668 | ||
| 3669 | // Re-synchronize the fake scrollbars with the actual size of the | |
| 3670 | // content. | |
| 3671 | function updateScrollbarsInner(cm, measure) { | |
| 3672 | var d = cm.display; | |
| 3673 | var sizes = d.scrollbars.update(measure); | |
| 3674 | ||
| 3675 | d.sizer.style.paddingRight = (d.barWidth = sizes.right) + "px"; | |
| 3676 | d.sizer.style.paddingBottom = (d.barHeight = sizes.bottom) + "px"; | |
| 3677 | d.heightForcer.style.borderBottom = sizes.bottom + "px solid transparent"; | |
| 3678 | ||
| 3679 | if (sizes.right && sizes.bottom) { | |
| 3680 | d.scrollbarFiller.style.display = "block"; | |
| 3681 | d.scrollbarFiller.style.height = sizes.bottom + "px"; | |
| 3682 | d.scrollbarFiller.style.width = sizes.right + "px"; | |
| 3683 | } else { d.scrollbarFiller.style.display = ""; } | |
| 3684 | if (sizes.bottom && cm.options.coverGutterNextToScrollbar && cm.options.fixedGutter) { | |
| 3685 | d.gutterFiller.style.display = "block"; | |
| 3686 | d.gutterFiller.style.height = sizes.bottom + "px"; | |
| 3687 | d.gutterFiller.style.width = measure.gutterWidth + "px"; | |
| 3688 | } else { d.gutterFiller.style.display = ""; } | |
| 3689 | } | |
| 3690 | ||
| 3691 | var scrollbarModel = {"native": NativeScrollbars, "null": NullScrollbars}; | |
| 3692 | ||
| 3693 | function initScrollbars(cm) { | |
| 3694 | if (cm.display.scrollbars) { | |
| 3695 | cm.display.scrollbars.clear(); | |
| 3696 | if (cm.display.scrollbars.addClass) | |
| 3697 | { rmClass(cm.display.wrapper, cm.display.scrollbars.addClass); } | |
| 3698 | } | |
| 3699 | ||
| 3700 | cm.display.scrollbars = new scrollbarModel[cm.options.scrollbarStyle](function (node) { | |
| 3701 | cm.display.wrapper.insertBefore(node, cm.display.scrollbarFiller); | |
| 3702 | // Prevent clicks in the scrollbars from killing focus | |
| 3703 | on(node, "mousedown", function () { | |
| 3704 | if (cm.state.focused) { setTimeout(function () { return cm.display.input.focus(); }, 0); } | |
| 3705 | }); | |
| 3706 | node.setAttribute("cm-not-content", "true"); | |
| 3707 | }, function (pos, axis) { | |
| 3708 | if (axis == "horizontal") { setScrollLeft(cm, pos); } | |
| 3709 | else { updateScrollTop(cm, pos); } | |
| 3710 | }, cm); | |
| 3711 | if (cm.display.scrollbars.addClass) | |
| 3712 | { addClass(cm.display.wrapper, cm.display.scrollbars.addClass); } | |
| 3713 | } | |
| 3714 | ||
| 3715 | // Operations are used to wrap a series of changes to the editor | |
| 3716 | // state in such a way that each change won't have to update the | |
| 3717 | // cursor and display (which would be awkward, slow, and | |
| 3718 | // error-prone). Instead, display updates are batched and then all | |
| 3719 | // combined and executed at once. | |
| 3720 | ||
| 3721 | var nextOpId = 0; | |
| 3722 | // Start a new operation. | |
| 3723 | function startOperation(cm) { | |
| 3724 | cm.curOp = { | |
| 3725 | cm: cm, | |
| 3726 | viewChanged: false, // Flag that indicates that lines might need to be redrawn | |
| 3727 | startHeight: cm.doc.height, // Used to detect need to update scrollbar | |
| 3728 | forceUpdate: false, // Used to force a redraw | |
| 3729 | updateInput: null, // Whether to reset the input textarea | |
| 3730 | typing: false, // Whether this reset should be careful to leave existing text (for compositing) | |
| 3731 | changeObjs: null, // Accumulated changes, for firing change events | |
| 3732 | cursorActivityHandlers: null, // Set of handlers to fire cursorActivity on | |
| 3733 | cursorActivityCalled: 0, // Tracks which cursorActivity handlers have been called already | |
| 3734 | selectionChanged: false, // Whether the selection needs to be redrawn | |
| 3735 | updateMaxLine: false, // Set when the widest line needs to be determined anew | |
| 3736 | scrollLeft: null, scrollTop: null, // Intermediate scroll position, not pushed to DOM yet | |
| 3737 | scrollToPos: null, // Used to scroll to a specific position | |
| 3738 | focus: false, | |
| 3739 | id: ++nextOpId // Unique ID | |
| 3740 | }; | |
| 3741 | pushOperation(cm.curOp); | |
| 3742 | } | |
| 3743 | ||
| 3744 | // Finish an operation, updating the display and signalling delayed events | |
| 3745 | function endOperation(cm) { | |
| 3746 | var op = cm.curOp; | |
| 3747 | if (op) { finishOperation(op, function (group) { | |
| 3748 | for (var i = 0; i < group.ops.length; i++) | |
| 3749 | { group.ops[i].cm.curOp = null; } | |
| 3750 | endOperations(group); | |
| 3751 | }); } | |
| 3752 | } | |
| 3753 | ||
| 3754 | // The DOM updates done when an operation finishes are batched so | |
| 3755 | // that the minimum number of relayouts are required. | |
| 3756 | function endOperations(group) { | |
| 3757 | var ops = group.ops; | |
| 3758 | for (var i = 0; i < ops.length; i++) // Read DOM | |
| 3759 | { endOperation_R1(ops[i]); } | |
| 3760 | for (var i$1 = 0; i$1 < ops.length; i$1++) // Write DOM (maybe) | |
| 3761 | { endOperation_W1(ops[i$1]); } | |
| 3762 | for (var i$2 = 0; i$2 < ops.length; i$2++) // Read DOM | |
| 3763 | { endOperation_R2(ops[i$2]); } | |
| 3764 | for (var i$3 = 0; i$3 < ops.length; i$3++) // Write DOM (maybe) | |
| 3765 | { endOperation_W2(ops[i$3]); } | |
| 3766 | for (var i$4 = 0; i$4 < ops.length; i$4++) // Read DOM | |
| 3767 | { endOperation_finish(ops[i$4]); } | |
| 3768 | } | |
| 3769 | ||
| 3770 | function endOperation_R1(op) { | |
| 3771 | var cm = op.cm, display = cm.display; | |
| 3772 | maybeClipScrollbars(cm); | |
| 3773 | if (op.updateMaxLine) { findMaxLine(cm); } | |
| 3774 | ||
| 3775 | op.mustUpdate = op.viewChanged || op.forceUpdate || op.scrollTop != null || | |
| 3776 | op.scrollToPos && (op.scrollToPos.from.line < display.viewFrom || | |
| 3777 | op.scrollToPos.to.line >= display.viewTo) || | |
| 3778 | display.maxLineChanged && cm.options.lineWrapping; | |
| 3779 | op.update = op.mustUpdate && | |
| 3780 | new DisplayUpdate(cm, op.mustUpdate && {top: op.scrollTop, ensure: op.scrollToPos}, op.forceUpdate); | |
| 3781 | } | |
| 3782 | ||
| 3783 | function endOperation_W1(op) { | |
| 3784 | op.updatedDisplay = op.mustUpdate && updateDisplayIfNeeded(op.cm, op.update); | |
| 3785 | } | |
| 3786 | ||
| 3787 | function endOperation_R2(op) { | |
| 3788 | var cm = op.cm, display = cm.display; | |
| 3789 | if (op.updatedDisplay) { updateHeightsInViewport(cm); } | |
| 3790 | ||
| 3791 | op.barMeasure = measureForScrollbars(cm); | |
| 3792 | ||
| 3793 | // If the max line changed since it was last measured, measure it, | |
| 3794 | // and ensure the document's width matches it. | |
| 3795 | // updateDisplay_W2 will use these properties to do the actual resizing | |
| 3796 | if (display.maxLineChanged && !cm.options.lineWrapping) { | |
| 3797 | op.adjustWidthTo = measureChar(cm, display.maxLine, display.maxLine.text.length).left + 3; | |
| 3798 | cm.display.sizerWidth = op.adjustWidthTo; | |
| 3799 | op.barMeasure.scrollWidth = | |
| 3800 | Math.max(display.scroller.clientWidth, display.sizer.offsetLeft + op.adjustWidthTo + scrollGap(cm) + cm.display.barWidth); | |
| 3801 | op.maxScrollLeft = Math.max(0, display.sizer.offsetLeft + op.adjustWidthTo - displayWidth(cm)); | |
| 3802 | } | |
| 3803 | ||
| 3804 | if (op.updatedDisplay || op.selectionChanged) | |
| 3805 | { op.preparedSelection = display.input.prepareSelection(); } | |
| 3806 | } | |
| 3807 | ||
| 3808 | function endOperation_W2(op) { | |
| 3809 | var cm = op.cm; | |
| 3810 | ||
| 3811 | if (op.adjustWidthTo != null) { | |
| 3812 | cm.display.sizer.style.minWidth = op.adjustWidthTo + "px"; | |
| 3813 | if (op.maxScrollLeft < cm.doc.scrollLeft) | |
| 3814 | { setScrollLeft(cm, Math.min(cm.display.scroller.scrollLeft, op.maxScrollLeft), true); } | |
| 3815 | cm.display.maxLineChanged = false; | |
| 3816 | } | |
| 3817 | ||
| 3818 | var takeFocus = op.focus && op.focus == activeElt(); | |
| 3819 | if (op.preparedSelection) | |
| 3820 | { cm.display.input.showSelection(op.preparedSelection, takeFocus); } | |
| 3821 | if (op.updatedDisplay || op.startHeight != cm.doc.height) | |
| 3822 | { updateScrollbars(cm, op.barMeasure); } | |
| 3823 | if (op.updatedDisplay) | |
| 3824 | { setDocumentHeight(cm, op.barMeasure); } | |
| 3825 | ||
| 3826 | if (op.selectionChanged) { restartBlink(cm); } | |
| 3827 | ||
| 3828 | if (cm.state.focused && op.updateInput) | |
| 3829 | { cm.display.input.reset(op.typing); } | |
| 3830 | if (takeFocus) { ensureFocus(op.cm); } | |
| 3831 | } | |
| 3832 | ||
| 3833 | function endOperation_finish(op) { | |
| 3834 | var cm = op.cm, display = cm.display, doc = cm.doc; | |
| 3835 | ||
| 3836 | if (op.updatedDisplay) { postUpdateDisplay(cm, op.update); } | |
| 3837 | ||
| 3838 | // Abort mouse wheel delta measurement, when scrolling explicitly | |
| 3839 | if (display.wheelStartX != null && (op.scrollTop != null || op.scrollLeft != null || op.scrollToPos)) | |
| 3840 | { display.wheelStartX = display.wheelStartY = null; } | |
| 3841 | ||
| 3842 | // Propagate the scroll position to the actual DOM scroller | |
| 3843 | if (op.scrollTop != null) { setScrollTop(cm, op.scrollTop, op.forceScroll); } | |
| 3844 | ||
| 3845 | if (op.scrollLeft != null) { setScrollLeft(cm, op.scrollLeft, true, true); } | |
| 3846 | // If we need to scroll a specific position into view, do so. | |
| 3847 | if (op.scrollToPos) { | |
| 3848 | var rect = scrollPosIntoView(cm, clipPos(doc, op.scrollToPos.from), | |
| 3849 | clipPos(doc, op.scrollToPos.to), op.scrollToPos.margin); | |
| 3850 | maybeScrollWindow(cm, rect); | |
| 3851 | } | |
| 3852 | ||
| 3853 | // Fire events for markers that are hidden/unidden by editing or | |
| 3854 | // undoing | |
| 3855 | var hidden = op.maybeHiddenMarkers, unhidden = op.maybeUnhiddenMarkers; | |
| 3856 | if (hidden) { for (var i = 0; i < hidden.length; ++i) | |
| 3857 | { if (!hidden[i].lines.length) { signal(hidden[i], "hide"); } } } | |
| 3858 | if (unhidden) { for (var i$1 = 0; i$1 < unhidden.length; ++i$1) | |
| 3859 | { if (unhidden[i$1].lines.length) { signal(unhidden[i$1], "unhide"); } } } | |
| 3860 | ||
| 3861 | if (display.wrapper.offsetHeight) | |
| 3862 | { doc.scrollTop = cm.display.scroller.scrollTop; } | |
| 3863 | ||
| 3864 | // Fire change events, and delayed event handlers | |
| 3865 | if (op.changeObjs) | |
| 3866 | { signal(cm, "changes", cm, op.changeObjs); } | |
| 3867 | if (op.update) | |
| 3868 | { op.update.finish(); } | |
| 3869 | } | |
| 3870 | ||
| 3871 | // Run the given function in an operation | |
| 3872 | function runInOp(cm, f) { | |
| 3873 | if (cm.curOp) { return f() } | |
| 3874 | startOperation(cm); | |
| 3875 | try { return f() } | |
| 3876 | finally { endOperation(cm); } | |
| 3877 | } | |
| 3878 | // Wraps a function in an operation. Returns the wrapped function. | |
| 3879 | function operation(cm, f) { | |
| 3880 | return function() { | |
| 3881 | if (cm.curOp) { return f.apply(cm, arguments) } | |
| 3882 | startOperation(cm); | |
| 3883 | try { return f.apply(cm, arguments) } | |
| 3884 | finally { endOperation(cm); } | |
| 3885 | } | |
| 3886 | } | |
| 3887 | // Used to add methods to editor and doc instances, wrapping them in | |
| 3888 | // operations. | |
| 3889 | function methodOp(f) { | |
| 3890 | return function() { | |
| 3891 | if (this.curOp) { return f.apply(this, arguments) } | |
| 3892 | startOperation(this); | |
| 3893 | try { return f.apply(this, arguments) } | |
| 3894 | finally { endOperation(this); } | |
| 3895 | } | |
| 3896 | } | |
| 3897 | function docMethodOp(f) { | |
| 3898 | return function() { | |
| 3899 | var cm = this.cm; | |
| 3900 | if (!cm || cm.curOp) { return f.apply(this, arguments) } | |
| 3901 | startOperation(cm); | |
| 3902 | try { return f.apply(this, arguments) } | |
| 3903 | finally { endOperation(cm); } | |
| 3904 | } | |
| 3905 | } | |
| 3906 | ||
| 3907 | // Updates the display.view data structure for a given change to the | |
| 3908 | // document. From and to are in pre-change coordinates. Lendiff is | |
| 3909 | // the amount of lines added or subtracted by the change. This is | |
| 3910 | // used for changes that span multiple lines, or change the way | |
| 3911 | // lines are divided into visual lines. regLineChange (below) | |
| 3912 | // registers single-line changes. | |
| 3913 | function regChange(cm, from, to, lendiff) { | |
| 3914 | if (from == null) { from = cm.doc.first; } | |
| 3915 | if (to == null) { to = cm.doc.first + cm.doc.size; } | |
| 3916 | if (!lendiff) { lendiff = 0; } | |
| 3917 | ||
| 3918 | var display = cm.display; | |
| 3919 | if (lendiff && to < display.viewTo && | |
| 3920 | (display.updateLineNumbers == null || display.updateLineNumbers > from)) | |
| 3921 | { display.updateLineNumbers = from; } | |
| 3922 | ||
| 3923 | cm.curOp.viewChanged = true; | |
| 3924 | ||
| 3925 | if (from >= display.viewTo) { // Change after | |
| 3926 | if (sawCollapsedSpans && visualLineNo(cm.doc, from) < display.viewTo) | |
| 3927 | { resetView(cm); } | |
| 3928 | } else if (to <= display.viewFrom) { // Change before | |
| 3929 | if (sawCollapsedSpans && visualLineEndNo(cm.doc, to + lendiff) > display.viewFrom) { | |
| 3930 | resetView(cm); | |
| 3931 | } else { | |
| 3932 | display.viewFrom += lendiff; | |
| 3933 | display.viewTo += lendiff; | |
| 3934 | } | |
| 3935 | } else if (from <= display.viewFrom && to >= display.viewTo) { // Full overlap | |
| 3936 | resetView(cm); | |
| 3937 | } else if (from <= display.viewFrom) { // Top overlap | |
| 3938 | var cut = viewCuttingPoint(cm, to, to + lendiff, 1); | |
| 3939 | if (cut) { | |
| 3940 | display.view = display.view.slice(cut.index); | |
| 3941 | display.viewFrom = cut.lineN; | |
| 3942 | display.viewTo += lendiff; | |
| 3943 | } else { | |
| 3944 | resetView(cm); | |
| 3945 | } | |
| 3946 | } else if (to >= display.viewTo) { // Bottom overlap | |
| 3947 | var cut$1 = viewCuttingPoint(cm, from, from, -1); | |
| 3948 | if (cut$1) { | |
| 3949 | display.view = display.view.slice(0, cut$1.index); | |
| 3950 | display.viewTo = cut$1.lineN; | |
| 3951 | } else { | |
| 3952 | resetView(cm); | |
| 3953 | } | |
| 3954 | } else { // Gap in the middle | |
| 3955 | var cutTop = viewCuttingPoint(cm, from, from, -1); | |
| 3956 | var cutBot = viewCuttingPoint(cm, to, to + lendiff, 1); | |
| 3957 | if (cutTop && cutBot) { | |
| 3958 | display.view = display.view.slice(0, cutTop.index) | |
| 3959 | .concat(buildViewArray(cm, cutTop.lineN, cutBot.lineN)) | |
| 3960 | .concat(display.view.slice(cutBot.index)); | |
| 3961 | display.viewTo += lendiff; | |
| 3962 | } else { | |
| 3963 | resetView(cm); | |
| 3964 | } | |
| 3965 | } | |
| 3966 | ||
| 3967 | var ext = display.externalMeasured; | |
| 3968 | if (ext) { | |
| 3969 | if (to < ext.lineN) | |
| 3970 | { ext.lineN += lendiff; } | |
| 3971 | else if (from < ext.lineN + ext.size) | |
| 3972 | { display.externalMeasured = null; } | |
| 3973 | } | |
| 3974 | } | |
| 3975 | ||
| 3976 | // Register a change to a single line. Type must be one of "text", | |
| 3977 | // "gutter", "class", "widget" | |
| 3978 | function regLineChange(cm, line, type) { | |
| 3979 | cm.curOp.viewChanged = true; | |
| 3980 | var display = cm.display, ext = cm.display.externalMeasured; | |
| 3981 | if (ext && line >= ext.lineN && line < ext.lineN + ext.size) | |
| 3982 | { display.externalMeasured = null; } | |
| 3983 | ||
| 3984 | if (line < display.viewFrom || line >= display.viewTo) { return } | |
| 3985 | var lineView = display.view[findViewIndex(cm, line)]; | |
| 3986 | if (lineView.node == null) { return } | |
| 3987 | var arr = lineView.changes || (lineView.changes = []); | |
| 3988 | if (indexOf(arr, type) == -1) { arr.push(type); } | |
| 3989 | } | |
| 3990 | ||
| 3991 | // Clear the view. | |
| 3992 | function resetView(cm) { | |
| 3993 | cm.display.viewFrom = cm.display.viewTo = cm.doc.first; | |
| 3994 | cm.display.view = []; | |
| 3995 | cm.display.viewOffset = 0; | |
| 3996 | } | |
| 3997 | ||
| 3998 | function viewCuttingPoint(cm, oldN, newN, dir) { | |
| 3999 | var index = findViewIndex(cm, oldN), diff, view = cm.display.view; | |
| 4000 | if (!sawCollapsedSpans || newN == cm.doc.first + cm.doc.size) | |
| 4001 | { return {index: index, lineN: newN} } | |
| 4002 | var n = cm.display.viewFrom; | |
| 4003 | for (var i = 0; i < index; i++) | |
| 4004 | { n += view[i].size; } | |
| 4005 | if (n != oldN) { | |
| 4006 | if (dir > 0) { | |
| 4007 | if (index == view.length - 1) { return null } | |
| 4008 | diff = (n + view[index].size) - oldN; | |
| 4009 | index++; | |
| 4010 | } else { | |
| 4011 | diff = n - oldN; | |
| 4012 | } | |
| 4013 | oldN += diff; newN += diff; | |
| 4014 | } | |
| 4015 | while (visualLineNo(cm.doc, newN) != newN) { | |
| 4016 | if (index == (dir < 0 ? 0 : view.length - 1)) { return null } | |
| 4017 | newN += dir * view[index - (dir < 0 ? 1 : 0)].size; | |
| 4018 | index += dir; | |
| 4019 | } | |
| 4020 | return {index: index, lineN: newN} | |
| 4021 | } | |
| 4022 | ||
| 4023 | // Force the view to cover a given range, adding empty view element | |
| 4024 | // or clipping off existing ones as needed. | |
| 4025 | function adjustView(cm, from, to) { | |
| 4026 | var display = cm.display, view = display.view; | |
| 4027 | if (view.length == 0 || from >= display.viewTo || to <= display.viewFrom) { | |
| 4028 | display.view = buildViewArray(cm, from, to); | |
| 4029 | display.viewFrom = from; | |
| 4030 | } else { | |
| 4031 | if (display.viewFrom > from) | |
| 4032 | { display.view = buildViewArray(cm, from, display.viewFrom).concat(display.view); } | |
| 4033 | else if (display.viewFrom < from) | |
| 4034 | { display.view = display.view.slice(findViewIndex(cm, from)); } | |
| 4035 | display.viewFrom = from; | |
| 4036 | if (display.viewTo < to) | |
| 4037 | { display.view = display.view.concat(buildViewArray(cm, display.viewTo, to)); } | |
| 4038 | else if (display.viewTo > to) | |
| 4039 | { display.view = display.view.slice(0, findViewIndex(cm, to)); } | |
| 4040 | } | |
| 4041 | display.viewTo = to; | |
| 4042 | } | |
| 4043 | ||
| 4044 | // Count the number of lines in the view whose DOM representation is | |
| 4045 | // out of date (or nonexistent). | |
| 4046 | function countDirtyView(cm) { | |
| 4047 | var view = cm.display.view, dirty = 0; | |
| 4048 | for (var i = 0; i < view.length; i++) { | |
| 4049 | var lineView = view[i]; | |
| 4050 | if (!lineView.hidden && (!lineView.node || lineView.changes)) { ++dirty; } | |
| 4051 | } | |
| 4052 | return dirty | |
| 4053 | } | |
| 4054 | ||
| 4055 | // HIGHLIGHT WORKER | |
| 4056 | ||
| 4057 | function startWorker(cm, time) { | |
| 4058 | if (cm.doc.highlightFrontier < cm.display.viewTo) | |
| 4059 | { cm.state.highlight.set(time, bind(highlightWorker, cm)); } | |
| 4060 | } | |
| 4061 | ||
| 4062 | function highlightWorker(cm) { | |
| 4063 | var doc = cm.doc; | |
| 4064 | if (doc.highlightFrontier >= cm.display.viewTo) { return } | |
| 4065 | var end = +new Date + cm.options.workTime; | |
| 4066 | var context = getContextBefore(cm, doc.highlightFrontier); | |
| 4067 | var changedLines = []; | |
| 4068 | ||
| 4069 | doc.iter(context.line, Math.min(doc.first + doc.size, cm.display.viewTo + 500), function (line) { | |
| 4070 | if (context.line >= cm.display.viewFrom) { // Visible | |
| 4071 | var oldStyles = line.styles; | |
| 4072 | var resetState = line.text.length > cm.options.maxHighlightLength ? copyState(doc.mode, context.state) : null; | |
| 4073 | var highlighted = highlightLine(cm, line, context, true); | |
| 4074 | if (resetState) { context.state = resetState; } | |
| 4075 | line.styles = highlighted.styles; | |
| 4076 | var oldCls = line.styleClasses, newCls = highlighted.classes; | |
| 4077 | if (newCls) { line.styleClasses = newCls; } | |
| 4078 | else if (oldCls) { line.styleClasses = null; } | |
| 4079 | var ischange = !oldStyles || oldStyles.length != line.styles.length || | |
| 4080 | oldCls != newCls && (!oldCls || !newCls || oldCls.bgClass != newCls.bgClass || oldCls.textClass != newCls.textClass); | |
| 4081 | for (var i = 0; !ischange && i < oldStyles.length; ++i) { ischange = oldStyles[i] != line.styles[i]; } | |
| 4082 | if (ischange) { changedLines.push(context.line); } | |
| 4083 | line.stateAfter = context.save(); | |
| 4084 | context.nextLine(); | |
| 4085 | } else { | |
| 4086 | if (line.text.length <= cm.options.maxHighlightLength) | |
| 4087 | { processLine(cm, line.text, context); } | |
| 4088 | line.stateAfter = context.line % 5 == 0 ? context.save() : null; | |
| 4089 | context.nextLine(); | |
| 4090 | } | |
| 4091 | if (+new Date > end) { | |
| 4092 | startWorker(cm, cm.options.workDelay); | |
| 4093 | return true | |
| 4094 | } | |
| 4095 | }); | |
| 4096 | doc.highlightFrontier = context.line; | |
| 4097 | doc.modeFrontier = Math.max(doc.modeFrontier, context.line); | |
| 4098 | if (changedLines.length) { runInOp(cm, function () { | |
| 4099 | for (var i = 0; i < changedLines.length; i++) | |
| 4100 | { regLineChange(cm, changedLines[i], "text"); } | |
| 4101 | }); } | |
| 4102 | } | |
| 4103 | ||
| 4104 | // DISPLAY DRAWING | |
| 4105 | ||
| 4106 | var DisplayUpdate = function(cm, viewport, force) { | |
| 4107 | var display = cm.display; | |
| 4108 | ||
| 4109 | this.viewport = viewport; | |
| 4110 | // Store some values that we'll need later (but don't want to force a relayout for) | |
| 4111 | this.visible = visibleLines(display, cm.doc, viewport); | |
| 4112 | this.editorIsHidden = !display.wrapper.offsetWidth; | |
| 4113 | this.wrapperHeight = display.wrapper.clientHeight; | |
| 4114 | this.wrapperWidth = display.wrapper.clientWidth; | |
| 4115 | this.oldDisplayWidth = displayWidth(cm); | |
| 4116 | this.force = force; | |
| 4117 | this.dims = getDimensions(cm); | |
| 4118 | this.events = []; | |
| 4119 | }; | |
| 4120 | ||
| 4121 | DisplayUpdate.prototype.signal = function (emitter, type) { | |
| 4122 | if (hasHandler(emitter, type)) | |
| 4123 | { this.events.push(arguments); } | |
| 4124 | }; | |
| 4125 | DisplayUpdate.prototype.finish = function () { | |
| 4126 | var this$1 = this; | |
| 4127 | ||
| 4128 | for (var i = 0; i < this.events.length; i++) | |
| 4129 | { signal.apply(null, this$1.events[i]); } | |
| 4130 | }; | |
| 4131 | ||
| 4132 | function maybeClipScrollbars(cm) { | |
| 4133 | var display = cm.display; | |
| 4134 | if (!display.scrollbarsClipped && display.scroller.offsetWidth) { | |
| 4135 | display.nativeBarWidth = display.scroller.offsetWidth - display.scroller.clientWidth; | |
| 4136 | display.heightForcer.style.height = scrollGap(cm) + "px"; | |
| 4137 | display.sizer.style.marginBottom = -display.nativeBarWidth + "px"; | |
| 4138 | display.sizer.style.borderRightWidth = scrollGap(cm) + "px"; | |
| 4139 | display.scrollbarsClipped = true; | |
| 4140 | } | |
| 4141 | } | |
| 4142 | ||
| 4143 | function selectionSnapshot(cm) { | |
| 4144 | if (cm.hasFocus()) { return null } | |
| 4145 | var active = activeElt(); | |
| 4146 | if (!active || !contains(cm.display.lineDiv, active)) { return null } | |
| 4147 | var result = {activeElt: active}; | |
| 4148 | if (window.getSelection) { | |
| 4149 | var sel = window.getSelection(); | |
| 4150 | if (sel.anchorNode && sel.extend && contains(cm.display.lineDiv, sel.anchorNode)) { | |
| 4151 | result.anchorNode = sel.anchorNode; | |
| 4152 | result.anchorOffset = sel.anchorOffset; | |
| 4153 | result.focusNode = sel.focusNode; | |
| 4154 | result.focusOffset = sel.focusOffset; | |
| 4155 | } | |
| 4156 | } | |
| 4157 | return result | |
| 4158 | } | |
| 4159 | ||
| 4160 | function restoreSelection(snapshot) { | |
| 4161 | if (!snapshot || !snapshot.activeElt || snapshot.activeElt == activeElt()) { return } | |
| 4162 | snapshot.activeElt.focus(); | |
| 4163 | if (snapshot.anchorNode && contains(document.body, snapshot.anchorNode) && contains(document.body, snapshot.focusNode)) { | |
| 4164 | var sel = window.getSelection(), range$$1 = document.createRange(); | |
| 4165 | range$$1.setEnd(snapshot.anchorNode, snapshot.anchorOffset); | |
| 4166 | range$$1.collapse(false); | |
| 4167 | sel.removeAllRanges(); | |
| 4168 | sel.addRange(range$$1); | |
| 4169 | sel.extend(snapshot.focusNode, snapshot.focusOffset); | |
| 4170 | } | |
| 4171 | } | |
| 4172 | ||
| 4173 | // Does the actual updating of the line display. Bails out | |
| 4174 | // (returning false) when there is nothing to be done and forced is | |
| 4175 | // false. | |
| 4176 | function updateDisplayIfNeeded(cm, update) { | |
| 4177 | var display = cm.display, doc = cm.doc; | |
| 4178 | ||
| 4179 | if (update.editorIsHidden) { | |
| 4180 | resetView(cm); | |
| 4181 | return false | |
| 4182 | } | |
| 4183 | ||
| 4184 | // Bail out if the visible area is already rendered and nothing changed. | |
| 4185 | if (!update.force && | |
| 4186 | update.visible.from >= display.viewFrom && update.visible.to <= display.viewTo && | |
| 4187 | (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo) && | |
| 4188 | display.renderedView == display.view && countDirtyView(cm) == 0) | |
| 4189 | { return false } | |
| 4190 | ||
| 4191 | if (maybeUpdateLineNumberWidth(cm)) { | |
| 4192 | resetView(cm); | |
| 4193 | update.dims = getDimensions(cm); | |
| 4194 | } | |
| 4195 | ||
| 4196 | // Compute a suitable new viewport (from & to) | |
| 4197 | var end = doc.first + doc.size; | |
| 4198 | var from = Math.max(update.visible.from - cm.options.viewportMargin, doc.first); | |
| 4199 | var to = Math.min(end, update.visible.to + cm.options.viewportMargin); | |
| 4200 | if (display.viewFrom < from && from - display.viewFrom < 20) { from = Math.max(doc.first, display.viewFrom); } | |
| 4201 | if (display.viewTo > to && display.viewTo - to < 20) { to = Math.min(end, display.viewTo); } | |
| 4202 | if (sawCollapsedSpans) { | |
| 4203 | from = visualLineNo(cm.doc, from); | |
| 4204 | to = visualLineEndNo(cm.doc, to); | |
| 4205 | } | |
| 4206 | ||
| 4207 | var different = from != display.viewFrom || to != display.viewTo || | |
| 4208 | display.lastWrapHeight != update.wrapperHeight || display.lastWrapWidth != update.wrapperWidth; | |
| 4209 | adjustView(cm, from, to); | |
| 4210 | ||
| 4211 | display.viewOffset = heightAtLine(getLine(cm.doc, display.viewFrom)); | |
| 4212 | // Position the mover div to align with the current scroll position | |
| 4213 | cm.display.mover.style.top = display.viewOffset + "px"; | |
| 4214 | ||
| 4215 | var toUpdate = countDirtyView(cm); | |
| 4216 | if (!different && toUpdate == 0 && !update.force && display.renderedView == display.view && | |
| 4217 | (display.updateLineNumbers == null || display.updateLineNumbers >= display.viewTo)) | |
| 4218 | { return false } | |
| 4219 | ||
| 4220 | // For big changes, we hide the enclosing element during the | |
| 4221 | // update, since that speeds up the operations on most browsers. | |
| 4222 | var selSnapshot = selectionSnapshot(cm); | |
| 4223 | if (toUpdate > 4) { display.lineDiv.style.display = "none"; } | |
| 4224 | patchDisplay(cm, display.updateLineNumbers, update.dims); | |
| 4225 | if (toUpdate > 4) { display.lineDiv.style.display = ""; } | |
| 4226 | display.renderedView = display.view; | |
| 4227 | // There might have been a widget with a focused element that got | |
| 4228 | // hidden or updated, if so re-focus it. | |
| 4229 | restoreSelection(selSnapshot); | |
| 4230 | ||
| 4231 | // Prevent selection and cursors from interfering with the scroll | |
| 4232 | // width and height. | |
| 4233 | removeChildren(display.cursorDiv); | |
| 4234 | removeChildren(display.selectionDiv); | |
| 4235 | display.gutters.style.height = display.sizer.style.minHeight = 0; | |
| 4236 | ||
| 4237 | if (different) { | |
| 4238 | display.lastWrapHeight = update.wrapperHeight; | |
| 4239 | display.lastWrapWidth = update.wrapperWidth; | |
| 4240 | startWorker(cm, 400); | |
| 4241 | } | |
| 4242 | ||
| 4243 | display.updateLineNumbers = null; | |
| 4244 | ||
| 4245 | return true | |
| 4246 | } | |
| 4247 | ||
| 4248 | function postUpdateDisplay(cm, update) { | |
| 4249 | var viewport = update.viewport; | |
| 4250 | ||
| 4251 | for (var first = true;; first = false) { | |
| 4252 | if (!first || !cm.options.lineWrapping || update.oldDisplayWidth == displayWidth(cm)) { | |
| 4253 | // Clip forced viewport to actual scrollable area. | |
| 4254 | if (viewport && viewport.top != null) | |
| 4255 | { viewport = {top: Math.min(cm.doc.height + paddingVert(cm.display) - displayHeight(cm), viewport.top)}; } | |
| 4256 | // Updated line heights might result in the drawn area not | |
| 4257 | // actually covering the viewport. Keep looping until it does. | |
| 4258 | update.visible = visibleLines(cm.display, cm.doc, viewport); | |
| 4259 | if (update.visible.from >= cm.display.viewFrom && update.visible.to <= cm.display.viewTo) | |
| 4260 | { break } | |
| 4261 | } | |
| 4262 | if (!updateDisplayIfNeeded(cm, update)) { break } | |
| 4263 | updateHeightsInViewport(cm); | |
| 4264 | var barMeasure = measureForScrollbars(cm); | |
| 4265 | updateSelection(cm); | |
| 4266 | updateScrollbars(cm, barMeasure); | |
| 4267 | setDocumentHeight(cm, barMeasure); | |
| 4268 | update.force = false; | |
| 4269 | } | |
| 4270 | ||
| 4271 | update.signal(cm, "update", cm); | |
| 4272 | if (cm.display.viewFrom != cm.display.reportedViewFrom || cm.display.viewTo != cm.display.reportedViewTo) { | |
| 4273 | update.signal(cm, "viewportChange", cm, cm.display.viewFrom, cm.display.viewTo); | |
| 4274 | cm.display.reportedViewFrom = cm.display.viewFrom; cm.display.reportedViewTo = cm.display.viewTo; | |
| 4275 | } | |
| 4276 | } | |
| 4277 | ||
| 4278 | function updateDisplaySimple(cm, viewport) { | |
| 4279 | var update = new DisplayUpdate(cm, viewport); | |
| 4280 | if (updateDisplayIfNeeded(cm, update)) { | |
| 4281 | updateHeightsInViewport(cm); | |
| 4282 | postUpdateDisplay(cm, update); | |
| 4283 | var barMeasure = measureForScrollbars(cm); | |
| 4284 | updateSelection(cm); | |
| 4285 | updateScrollbars(cm, barMeasure); | |
| 4286 | setDocumentHeight(cm, barMeasure); | |
| 4287 | update.finish(); | |
| 4288 | } | |
| 4289 | } | |
| 4290 | ||
| 4291 | // Sync the actual display DOM structure with display.view, removing | |
| 4292 | // nodes for lines that are no longer in view, and creating the ones | |
| 4293 | // that are not there yet, and updating the ones that are out of | |
| 4294 | // date. | |
| 4295 | function patchDisplay(cm, updateNumbersFrom, dims) { | |
| 4296 | var display = cm.display, lineNumbers = cm.options.lineNumbers; | |
| 4297 | var container = display.lineDiv, cur = container.firstChild; | |
| 4298 | ||
| 4299 | function rm(node) { | |
| 4300 | var next = node.nextSibling; | |
| 4301 | // Works around a throw-scroll bug in OS X Webkit | |
| 4302 | if (webkit && mac && cm.display.currentWheelTarget == node) | |
| 4303 | { node.style.display = "none"; } | |
| 4304 | else | |
| 4305 | { node.parentNode.removeChild(node); } | |
| 4306 | return next | |
| 4307 | } | |
| 4308 | ||
| 4309 | var view = display.view, lineN = display.viewFrom; | |
| 4310 | // Loop over the elements in the view, syncing cur (the DOM nodes | |
| 4311 | // in display.lineDiv) with the view as we go. | |
| 4312 | for (var i = 0; i < view.length; i++) { | |
| 4313 | var lineView = view[i]; | |
| 4314 | if (lineView.hidden) ; else if (!lineView.node || lineView.node.parentNode != container) { // Not drawn yet | |
| 4315 | var node = buildLineElement(cm, lineView, lineN, dims); | |
| 4316 | container.insertBefore(node, cur); | |
| 4317 | } else { // Already drawn | |
| 4318 | while (cur != lineView.node) { cur = rm(cur); } | |
| 4319 | var updateNumber = lineNumbers && updateNumbersFrom != null && | |
| 4320 | updateNumbersFrom <= lineN && lineView.lineNumber; | |
| 4321 | if (lineView.changes) { | |
| 4322 | if (indexOf(lineView.changes, "gutter") > -1) { updateNumber = false; } | |
| 4323 | updateLineForChanges(cm, lineView, lineN, dims); | |
| 4324 | } | |
| 4325 | if (updateNumber) { | |
| 4326 | removeChildren(lineView.lineNumber); | |
| 4327 | lineView.lineNumber.appendChild(document.createTextNode(lineNumberFor(cm.options, lineN))); | |
| 4328 | } | |
| 4329 | cur = lineView.node.nextSibling; | |
| 4330 | } | |
| 4331 | lineN += lineView.size; | |
| 4332 | } | |
| 4333 | while (cur) { cur = rm(cur); } | |
| 4334 | } | |
| 4335 | ||
| 4336 | function updateGutterSpace(cm) { | |
| 4337 | var width = cm.display.gutters.offsetWidth; | |
| 4338 | cm.display.sizer.style.marginLeft = width + "px"; | |
| 4339 | } | |
| 4340 | ||
| 4341 | function setDocumentHeight(cm, measure) { | |
| 4342 | cm.display.sizer.style.minHeight = measure.docHeight + "px"; | |
| 4343 | cm.display.heightForcer.style.top = measure.docHeight + "px"; | |
| 4344 | cm.display.gutters.style.height = (measure.docHeight + cm.display.barHeight + scrollGap(cm)) + "px"; | |
| 4345 | } | |
| 4346 | ||
| 4347 | // Rebuild the gutter elements, ensure the margin to the left of the | |
| 4348 | // code matches their width. | |
| 4349 | function updateGutters(cm) { | |
| 4350 | var gutters = cm.display.gutters, specs = cm.options.gutters; | |
| 4351 | removeChildren(gutters); | |
| 4352 | var i = 0; | |
| 4353 | for (; i < specs.length; ++i) { | |
| 4354 | var gutterClass = specs[i]; | |
| 4355 | var gElt = gutters.appendChild(elt("div", null, "CodeMirror-gutter " + gutterClass)); | |
| 4356 | if (gutterClass == "CodeMirror-linenumbers") { | |
| 4357 | cm.display.lineGutter = gElt; | |
| 4358 | gElt.style.width = (cm.display.lineNumWidth || 1) + "px"; | |
| 4359 | } | |
| 4360 | } | |
| 4361 | gutters.style.display = i ? "" : "none"; | |
| 4362 | updateGutterSpace(cm); | |
| 4363 | } | |
| 4364 | ||
| 4365 | // Make sure the gutters options contains the element | |
| 4366 | // "CodeMirror-linenumbers" when the lineNumbers option is true. | |
| 4367 | function setGuttersForLineNumbers(options) { | |
| 4368 | var found = indexOf(options.gutters, "CodeMirror-linenumbers"); | |
| 4369 | if (found == -1 && options.lineNumbers) { | |
| 4370 | options.gutters = options.gutters.concat(["CodeMirror-linenumbers"]); | |
| 4371 | } else if (found > -1 && !options.lineNumbers) { | |
| 4372 | options.gutters = options.gutters.slice(0); | |
| 4373 | options.gutters.splice(found, 1); | |
| 4374 | } | |
| 4375 | } | |
| 4376 | ||
| 4377 | // Since the delta values reported on mouse wheel events are | |
| 4378 | // unstandardized between browsers and even browser versions, and | |
| 4379 | // generally horribly unpredictable, this code starts by measuring | |
| 4380 | // the scroll effect that the first few mouse wheel events have, | |
| 4381 | // and, from that, detects the way it can convert deltas to pixel | |
| 4382 | // offsets afterwards. | |
| 4383 | // | |
| 4384 | // The reason we want to know the amount a wheel event will scroll | |
| 4385 | // is that it gives us a chance to update the display before the | |
| 4386 | // actual scrolling happens, reducing flickering. | |
| 4387 | ||
| 4388 | var wheelSamples = 0, wheelPixelsPerUnit = null; | |
| 4389 | // Fill in a browser-detected starting value on browsers where we | |
| 4390 | // know one. These don't have to be accurate -- the result of them | |
| 4391 | // being wrong would just be a slight flicker on the first wheel | |
| 4392 | // scroll (if it is large enough). | |
| 4393 | if (ie) { wheelPixelsPerUnit = -.53; } | |
| 4394 | else if (gecko) { wheelPixelsPerUnit = 15; } | |
| 4395 | else if (chrome) { wheelPixelsPerUnit = -.7; } | |
| 4396 | else if (safari) { wheelPixelsPerUnit = -1/3; } | |
| 4397 | ||
| 4398 | function wheelEventDelta(e) { | |
| 4399 | var dx = e.wheelDeltaX, dy = e.wheelDeltaY; | |
| 4400 | if (dx == null && e.detail && e.axis == e.HORIZONTAL_AXIS) { dx = e.detail; } | |
| 4401 | if (dy == null && e.detail && e.axis == e.VERTICAL_AXIS) { dy = e.detail; } | |
| 4402 | else if (dy == null) { dy = e.wheelDelta; } | |
| 4403 | return {x: dx, y: dy} | |
| 4404 | } | |
| 4405 | function wheelEventPixels(e) { | |
| 4406 | var delta = wheelEventDelta(e); | |
| 4407 | delta.x *= wheelPixelsPerUnit; | |
| 4408 | delta.y *= wheelPixelsPerUnit; | |
| 4409 | return delta | |
| 4410 | } | |
| 4411 | ||
| 4412 | function onScrollWheel(cm, e) { | |
| 4413 | var delta = wheelEventDelta(e), dx = delta.x, dy = delta.y; | |
| 4414 | ||
| 4415 | var display = cm.display, scroll = display.scroller; | |
| 4416 | // Quit if there's nothing to scroll here | |
| 4417 | var canScrollX = scroll.scrollWidth > scroll.clientWidth; | |
| 4418 | var canScrollY = scroll.scrollHeight > scroll.clientHeight; | |
| 4419 | if (!(dx && canScrollX || dy && canScrollY)) { return } | |
| 4420 | ||
| 4421 | // Webkit browsers on OS X abort momentum scrolls when the target | |
| 4422 | // of the scroll event is removed from the scrollable element. | |
| 4423 | // This hack (see related code in patchDisplay) makes sure the | |
| 4424 | // element is kept around. | |
| 4425 | if (dy && mac && webkit) { | |
| 4426 | outer: for (var cur = e.target, view = display.view; cur != scroll; cur = cur.parentNode) { | |
| 4427 | for (var i = 0; i < view.length; i++) { | |
| 4428 | if (view[i].node == cur) { | |
| 4429 | cm.display.currentWheelTarget = cur; | |
| 4430 | break outer | |
| 4431 | } | |
| 4432 | } | |
| 4433 | } | |
| 4434 | } | |
| 4435 | ||
| 4436 | // On some browsers, horizontal scrolling will cause redraws to | |
| 4437 | // happen before the gutter has been realigned, causing it to | |
| 4438 | // wriggle around in a most unseemly way. When we have an | |
| 4439 | // estimated pixels/delta value, we just handle horizontal | |
| 4440 | // scrolling entirely here. It'll be slightly off from native, but | |
| 4441 | // better than glitching out. | |
| 4442 | if (dx && !gecko && !presto && wheelPixelsPerUnit != null) { | |
| 4443 | if (dy && canScrollY) | |
| 4444 | { updateScrollTop(cm, Math.max(0, scroll.scrollTop + dy * wheelPixelsPerUnit)); } | |
| 4445 | setScrollLeft(cm, Math.max(0, scroll.scrollLeft + dx * wheelPixelsPerUnit)); | |
| 4446 | // Only prevent default scrolling if vertical scrolling is | |
| 4447 | // actually possible. Otherwise, it causes vertical scroll | |
| 4448 | // jitter on OSX trackpads when deltaX is small and deltaY | |
| 4449 | // is large (issue #3579) | |
| 4450 | if (!dy || (dy && canScrollY)) | |
| 4451 | { e_preventDefault(e); } | |
| 4452 | display.wheelStartX = null; // Abort measurement, if in progress | |
| 4453 | return | |
| 4454 | } | |
| 4455 | ||
| 4456 | // 'Project' the visible viewport to cover the area that is being | |
| 4457 | // scrolled into view (if we know enough to estimate it). | |
| 4458 | if (dy && wheelPixelsPerUnit != null) { | |
| 4459 | var pixels = dy * wheelPixelsPerUnit; | |
| 4460 | var top = cm.doc.scrollTop, bot = top + display.wrapper.clientHeight; | |
| 4461 | if (pixels < 0) { top = Math.max(0, top + pixels - 50); } | |
| 4462 | else { bot = Math.min(cm.doc.height, bot + pixels + 50); } | |
| 4463 | updateDisplaySimple(cm, {top: top, bottom: bot}); | |
| 4464 | } | |
| 4465 | ||
| 4466 | if (wheelSamples < 20) { | |
| 4467 | if (display.wheelStartX == null) { | |
| 4468 | display.wheelStartX = scroll.scrollLeft; display.wheelStartY = scroll.scrollTop; | |
| 4469 | display.wheelDX = dx; display.wheelDY = dy; | |
| 4470 | setTimeout(function () { | |
| 4471 | if (display.wheelStartX == null) { return } | |
| 4472 | var movedX = scroll.scrollLeft - display.wheelStartX; | |
| 4473 | var movedY = scroll.scrollTop - display.wheelStartY; | |
| 4474 | var sample = (movedY && display.wheelDY && movedY / display.wheelDY) || | |
| 4475 | (movedX && display.wheelDX && movedX / display.wheelDX); | |
| 4476 | display.wheelStartX = display.wheelStartY = null; | |
| 4477 | if (!sample) { return } | |
| 4478 | wheelPixelsPerUnit = (wheelPixelsPerUnit * wheelSamples + sample) / (wheelSamples + 1); | |
| 4479 | ++wheelSamples; | |
| 4480 | }, 200); | |
| 4481 | } else { | |
| 4482 | display.wheelDX += dx; display.wheelDY += dy; | |
| 4483 | } | |
| 4484 | } | |
| 4485 | } | |
| 4486 | ||
| 4487 | // Selection objects are immutable. A new one is created every time | |
| 4488 | // the selection changes. A selection is one or more non-overlapping | |
| 4489 | // (and non-touching) ranges, sorted, and an integer that indicates | |
| 4490 | // which one is the primary selection (the one that's scrolled into | |
| 4491 | // view, that getCursor returns, etc). | |
| 4492 | var Selection = function(ranges, primIndex) { | |
| 4493 | this.ranges = ranges; | |
| 4494 | this.primIndex = primIndex; | |
| 4495 | }; | |
| 4496 | ||
| 4497 | Selection.prototype.primary = function () { return this.ranges[this.primIndex] }; | |
| 4498 | ||
| 4499 | Selection.prototype.equals = function (other) { | |
| 4500 | var this$1 = this; | |
| 4501 | ||
| 4502 | if (other == this) { return true } | |
| 4503 | if (other.primIndex != this.primIndex || other.ranges.length != this.ranges.length) { return false } | |
| 4504 | for (var i = 0; i < this.ranges.length; i++) { | |
| 4505 | var here = this$1.ranges[i], there = other.ranges[i]; | |
| 4506 | if (!equalCursorPos(here.anchor, there.anchor) || !equalCursorPos(here.head, there.head)) { return false } | |
| 4507 | } | |
| 4508 | return true | |
| 4509 | }; | |
| 4510 | ||
| 4511 | Selection.prototype.deepCopy = function () { | |
| 4512 | var this$1 = this; | |
| 4513 | ||
| 4514 | var out = []; | |
| 4515 | for (var i = 0; i < this.ranges.length; i++) | |
| 4516 | { out[i] = new Range(copyPos(this$1.ranges[i].anchor), copyPos(this$1.ranges[i].head)); } | |
| 4517 | return new Selection(out, this.primIndex) | |
| 4518 | }; | |
| 4519 | ||
| 4520 | Selection.prototype.somethingSelected = function () { | |
| 4521 | var this$1 = this; | |
| 4522 | ||
| 4523 | for (var i = 0; i < this.ranges.length; i++) | |
| 4524 | { if (!this$1.ranges[i].empty()) { return true } } | |
| 4525 | return false | |
| 4526 | }; | |
| 4527 | ||
| 4528 | Selection.prototype.contains = function (pos, end) { | |
| 4529 | var this$1 = this; | |
| 4530 | ||
| 4531 | if (!end) { end = pos; } | |
| 4532 | for (var i = 0; i < this.ranges.length; i++) { | |
| 4533 | var range = this$1.ranges[i]; | |
| 4534 | if (cmp(end, range.from()) >= 0 && cmp(pos, range.to()) <= 0) | |
| 4535 | { return i } | |
| 4536 | } | |
| 4537 | return -1 | |
| 4538 | }; | |
| 4539 | ||
| 4540 | var Range = function(anchor, head) { | |
| 4541 | this.anchor = anchor; this.head = head; | |
| 4542 | }; | |
| 4543 | ||
| 4544 | Range.prototype.from = function () { return minPos(this.anchor, this.head) }; | |
| 4545 | Range.prototype.to = function () { return maxPos(this.anchor, this.head) }; | |
| 4546 | Range.prototype.empty = function () { return this.head.line == this.anchor.line && this.head.ch == this.anchor.ch }; | |
| 4547 | ||
| 4548 | // Take an unsorted, potentially overlapping set of ranges, and | |
| 4549 | // build a selection out of it. 'Consumes' ranges array (modifying | |
| 4550 | // it). | |
| 4551 | function normalizeSelection(cm, ranges, primIndex) { | |
| 4552 | var mayTouch = cm && cm.options.selectionsMayTouch; | |
| 4553 | var prim = ranges[primIndex]; | |
| 4554 | ranges.sort(function (a, b) { return cmp(a.from(), b.from()); }); | |
| 4555 | primIndex = indexOf(ranges, prim); | |
| 4556 | for (var i = 1; i < ranges.length; i++) { | |
| 4557 | var cur = ranges[i], prev = ranges[i - 1]; | |
| 4558 | var diff = cmp(prev.to(), cur.from()); | |
| 4559 | if (mayTouch && !cur.empty() ? diff > 0 : diff >= 0) { | |
| 4560 | var from = minPos(prev.from(), cur.from()), to = maxPos(prev.to(), cur.to()); | |
| 4561 | var inv = prev.empty() ? cur.from() == cur.head : prev.from() == prev.head; | |
| 4562 | if (i <= primIndex) { --primIndex; } | |
| 4563 | ranges.splice(--i, 2, new Range(inv ? to : from, inv ? from : to)); | |
| 4564 | } | |
| 4565 | } | |
| 4566 | return new Selection(ranges, primIndex) | |
| 4567 | } | |
| 4568 | ||
| 4569 | function simpleSelection(anchor, head) { | |
| 4570 | return new Selection([new Range(anchor, head || anchor)], 0) | |
| 4571 | } | |
| 4572 | ||
| 4573 | // Compute the position of the end of a change (its 'to' property | |
| 4574 | // refers to the pre-change end). | |
| 4575 | function changeEnd(change) { | |
| 4576 | if (!change.text) { return change.to } | |
| 4577 | return Pos(change.from.line + change.text.length - 1, | |
| 4578 | lst(change.text).length + (change.text.length == 1 ? change.from.ch : 0)) | |
| 4579 | } | |
| 4580 | ||
| 4581 | // Adjust a position to refer to the post-change position of the | |
| 4582 | // same text, or the end of the change if the change covers it. | |
| 4583 | function adjustForChange(pos, change) { | |
| 4584 | if (cmp(pos, change.from) < 0) { return pos } | |
| 4585 | if (cmp(pos, change.to) <= 0) { return changeEnd(change) } | |
| 4586 | ||
| 4587 | var line = pos.line + change.text.length - (change.to.line - change.from.line) - 1, ch = pos.ch; | |
| 4588 | if (pos.line == change.to.line) { ch += changeEnd(change).ch - change.to.ch; } | |
| 4589 | return Pos(line, ch) | |
| 4590 | } | |
| 4591 | ||
| 4592 | function computeSelAfterChange(doc, change) { | |
| 4593 | var out = []; | |
| 4594 | for (var i = 0; i < doc.sel.ranges.length; i++) { | |
| 4595 | var range = doc.sel.ranges[i]; | |
| 4596 | out.push(new Range(adjustForChange(range.anchor, change), | |
| 4597 | adjustForChange(range.head, change))); | |
| 4598 | } | |
| 4599 | return normalizeSelection(doc.cm, out, doc.sel.primIndex) | |
| 4600 | } | |
| 4601 | ||
| 4602 | function offsetPos(pos, old, nw) { | |
| 4603 | if (pos.line == old.line) | |
| 4604 | { return Pos(nw.line, pos.ch - old.ch + nw.ch) } | |
| 4605 | else | |
| 4606 | { return Pos(nw.line + (pos.line - old.line), pos.ch) } | |
| 4607 | } | |
| 4608 | ||
| 4609 | // Used by replaceSelections to allow moving the selection to the | |
| 4610 | // start or around the replaced test. Hint may be "start" or "around". | |
| 4611 | function computeReplacedSel(doc, changes, hint) { | |
| 4612 | var out = []; | |
| 4613 | var oldPrev = Pos(doc.first, 0), newPrev = oldPrev; | |
| 4614 | for (var i = 0; i < changes.length; i++) { | |
| 4615 | var change = changes[i]; | |
| 4616 | var from = offsetPos(change.from, oldPrev, newPrev); | |
| 4617 | var to = offsetPos(changeEnd(change), oldPrev, newPrev); | |
| 4618 | oldPrev = change.to; | |
| 4619 | newPrev = to; | |
| 4620 | if (hint == "around") { | |
| 4621 | var range = doc.sel.ranges[i], inv = cmp(range.head, range.anchor) < 0; | |
| 4622 | out[i] = new Range(inv ? to : from, inv ? from : to); | |
| 4623 | } else { | |
| 4624 | out[i] = new Range(from, from); | |
| 4625 | } | |
| 4626 | } | |
| 4627 | return new Selection(out, doc.sel.primIndex) | |
| 4628 | } | |
| 4629 | ||
| 4630 | // Used to get the editor into a consistent state again when options change. | |
| 4631 | ||
| 4632 | function loadMode(cm) { | |
| 4633 | cm.doc.mode = getMode(cm.options, cm.doc.modeOption); | |
| 4634 | resetModeState(cm); | |
| 4635 | } | |
| 4636 | ||
| 4637 | function resetModeState(cm) { | |
| 4638 | cm.doc.iter(function (line) { | |
| 4639 | if (line.stateAfter) { line.stateAfter = null; } | |
| 4640 | if (line.styles) { line.styles = null; } | |
| 4641 | }); | |
| 4642 | cm.doc.modeFrontier = cm.doc.highlightFrontier = cm.doc.first; | |
| 4643 | startWorker(cm, 100); | |
| 4644 | cm.state.modeGen++; | |
| 4645 | if (cm.curOp) { regChange(cm); } | |
| 4646 | } | |
| 4647 | ||
| 4648 | // DOCUMENT DATA STRUCTURE | |
| 4649 | ||
| 4650 | // By default, updates that start and end at the beginning of a line | |
| 4651 | // are treated specially, in order to make the association of line | |
| 4652 | // widgets and marker elements with the text behave more intuitive. | |
| 4653 | function isWholeLineUpdate(doc, change) { | |
| 4654 | return change.from.ch == 0 && change.to.ch == 0 && lst(change.text) == "" && | |
| 4655 | (!doc.cm || doc.cm.options.wholeLineUpdateBefore) | |
| 4656 | } | |
| 4657 | ||
| 4658 | // Perform a change on the document data structure. | |
| 4659 | function updateDoc(doc, change, markedSpans, estimateHeight$$1) { | |
| 4660 | function spansFor(n) {return markedSpans ? markedSpans[n] : null} | |
| 4661 | function update(line, text, spans) { | |
| 4662 | updateLine(line, text, spans, estimateHeight$$1); | |
| 4663 | signalLater(line, "change", line, change); | |
| 4664 | } | |
| 4665 | function linesFor(start, end) { | |
| 4666 | var result = []; | |
| 4667 | for (var i = start; i < end; ++i) | |
| 4668 | { result.push(new Line(text[i], spansFor(i), estimateHeight$$1)); } | |
| 4669 | return result | |
| 4670 | } | |
| 4671 | ||
| 4672 | var from = change.from, to = change.to, text = change.text; | |
| 4673 | var firstLine = getLine(doc, from.line), lastLine = getLine(doc, to.line); | |
| 4674 | var lastText = lst(text), lastSpans = spansFor(text.length - 1), nlines = to.line - from.line; | |
| 4675 | ||
| 4676 | // Adjust the line structure | |
| 4677 | if (change.full) { | |
| 4678 | doc.insert(0, linesFor(0, text.length)); | |
| 4679 | doc.remove(text.length, doc.size - text.length); | |
| 4680 | } else if (isWholeLineUpdate(doc, change)) { | |
| 4681 | // This is a whole-line replace. Treated specially to make | |
| 4682 | // sure line objects move the way they are supposed to. | |
| 4683 | var added = linesFor(0, text.length - 1); | |
| 4684 | update(lastLine, lastLine.text, lastSpans); | |
| 4685 | if (nlines) { doc.remove(from.line, nlines); } | |
| 4686 | if (added.length) { doc.insert(from.line, added); } | |
| 4687 | } else if (firstLine == lastLine) { | |
| 4688 | if (text.length == 1) { | |
| 4689 | update(firstLine, firstLine.text.slice(0, from.ch) + lastText + firstLine.text.slice(to.ch), lastSpans); | |
| 4690 | } else { | |
| 4691 | var added$1 = linesFor(1, text.length - 1); | |
| 4692 | added$1.push(new Line(lastText + firstLine.text.slice(to.ch), lastSpans, estimateHeight$$1)); | |
| 4693 | update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); | |
| 4694 | doc.insert(from.line + 1, added$1); | |
| 4695 | } | |
| 4696 | } else if (text.length == 1) { | |
| 4697 | update(firstLine, firstLine.text.slice(0, from.ch) + text[0] + lastLine.text.slice(to.ch), spansFor(0)); | |
| 4698 | doc.remove(from.line + 1, nlines); | |
| 4699 | } else { | |
| 4700 | update(firstLine, firstLine.text.slice(0, from.ch) + text[0], spansFor(0)); | |
| 4701 | update(lastLine, lastText + lastLine.text.slice(to.ch), lastSpans); | |
| 4702 | var added$2 = linesFor(1, text.length - 1); | |
| 4703 | if (nlines > 1) { doc.remove(from.line + 1, nlines - 1); } | |
| 4704 | doc.insert(from.line + 1, added$2); | |
| 4705 | } | |
| 4706 | ||
| 4707 | signalLater(doc, "change", doc, change); | |
| 4708 | } | |
| 4709 | ||
| 4710 | // Call f for all linked documents. | |
| 4711 | function linkedDocs(doc, f, sharedHistOnly) { | |
| 4712 | function propagate(doc, skip, sharedHist) { | |
| 4713 | if (doc.linked) { for (var i = 0; i < doc.linked.length; ++i) { | |
| 4714 | var rel = doc.linked[i]; | |
| 4715 | if (rel.doc == skip) { continue } | |
| 4716 | var shared = sharedHist && rel.sharedHist; | |
| 4717 | if (sharedHistOnly && !shared) { continue } | |
| 4718 | f(rel.doc, shared); | |
| 4719 | propagate(rel.doc, doc, shared); | |
| 4720 | } } | |
| 4721 | } | |
| 4722 | propagate(doc, null, true); | |
| 4723 | } | |
| 4724 | ||
| 4725 | // Attach a document to an editor. | |
| 4726 | function attachDoc(cm, doc) { | |
| 4727 | if (doc.cm) { throw new Error("This document is already in use.") } | |
| 4728 | cm.doc = doc; | |
| 4729 | doc.cm = cm; | |
| 4730 | estimateLineHeights(cm); | |
| 4731 | loadMode(cm); | |
| 4732 | setDirectionClass(cm); | |
| 4733 | if (!cm.options.lineWrapping) { findMaxLine(cm); } | |
| 4734 | cm.options.mode = doc.modeOption; | |
| 4735 | regChange(cm); | |
| 4736 | } | |
| 4737 | ||
| 4738 | function setDirectionClass(cm) { | |
| 4739 | (cm.doc.direction == "rtl" ? addClass : rmClass)(cm.display.lineDiv, "CodeMirror-rtl"); | |
| 4740 | } | |
| 4741 | ||
| 4742 | function directionChanged(cm) { | |
| 4743 | runInOp(cm, function () { | |
| 4744 | setDirectionClass(cm); | |
| 4745 | regChange(cm); | |
| 4746 | }); | |
| 4747 | } | |
| 4748 | ||
| 4749 | function History(startGen) { | |
| 4750 | // Arrays of change events and selections. Doing something adds an | |
| 4751 | // event to done and clears undo. Undoing moves events from done | |
| 4752 | // to undone, redoing moves them in the other direction. | |
| 4753 | this.done = []; this.undone = []; | |
| 4754 | this.undoDepth = Infinity; | |
| 4755 | // Used to track when changes can be merged into a single undo | |
| 4756 | // event | |
| 4757 | this.lastModTime = this.lastSelTime = 0; | |
| 4758 | this.lastOp = this.lastSelOp = null; | |
| 4759 | this.lastOrigin = this.lastSelOrigin = null; | |
| 4760 | // Used by the isClean() method | |
| 4761 | this.generation = this.maxGeneration = startGen || 1; | |
| 4762 | } | |
| 4763 | ||
| 4764 | // Create a history change event from an updateDoc-style change | |
| 4765 | // object. | |
| 4766 | function historyChangeFromChange(doc, change) { | |
| 4767 | var histChange = {from: copyPos(change.from), to: changeEnd(change), text: getBetween(doc, change.from, change.to)}; | |
| 4768 | attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); | |
| 4769 | linkedDocs(doc, function (doc) { return attachLocalSpans(doc, histChange, change.from.line, change.to.line + 1); }, true); | |
| 4770 | return histChange | |
| 4771 | } | |
| 4772 | ||
| 4773 | // Pop all selection events off the end of a history array. Stop at | |
| 4774 | // a change event. | |
| 4775 | function clearSelectionEvents(array) { | |
| 4776 | while (array.length) { | |
| 4777 | var last = lst(array); | |
| 4778 | if (last.ranges) { array.pop(); } | |
| 4779 | else { break } | |
| 4780 | } | |
| 4781 | } | |
| 4782 | ||
| 4783 | // Find the top change event in the history. Pop off selection | |
| 4784 | // events that are in the way. | |
| 4785 | function lastChangeEvent(hist, force) { | |
| 4786 | if (force) { | |
| 4787 | clearSelectionEvents(hist.done); | |
| 4788 | return lst(hist.done) | |
| 4789 | } else if (hist.done.length && !lst(hist.done).ranges) { | |
| 4790 | return lst(hist.done) | |
| 4791 | } else if (hist.done.length > 1 && !hist.done[hist.done.length - 2].ranges) { | |
| 4792 | hist.done.pop(); | |
| 4793 | return lst(hist.done) | |
| 4794 | } | |
| 4795 | } | |
| 4796 | ||
| 4797 | // Register a change in the history. Merges changes that are within | |
| 4798 | // a single operation, or are close together with an origin that | |
| 4799 | // allows merging (starting with "+") into a single event. | |
| 4800 | function addChangeToHistory(doc, change, selAfter, opId) { | |
| 4801 | var hist = doc.history; | |
| 4802 | hist.undone.length = 0; | |
| 4803 | var time = +new Date, cur; | |
| 4804 | var last; | |
| 4805 | ||
| 4806 | if ((hist.lastOp == opId || | |
| 4807 | hist.lastOrigin == change.origin && change.origin && | |
| 4808 | ((change.origin.charAt(0) == "+" && hist.lastModTime > time - (doc.cm ? doc.cm.options.historyEventDelay : 500)) || | |
| 4809 | change.origin.charAt(0) == "*")) && | |
| 4810 | (cur = lastChangeEvent(hist, hist.lastOp == opId))) { | |
| 4811 | // Merge this change into the last event | |
| 4812 | last = lst(cur.changes); | |
| 4813 | if (cmp(change.from, change.to) == 0 && cmp(change.from, last.to) == 0) { | |
| 4814 | // Optimized case for simple insertion -- don't want to add | |
| 4815 | // new changesets for every character typed | |
| 4816 | last.to = changeEnd(change); | |
| 4817 | } else { | |
| 4818 | // Add new sub-event | |
| 4819 | cur.changes.push(historyChangeFromChange(doc, change)); | |
| 4820 | } | |
| 4821 | } else { | |
| 4822 | // Can not be merged, start a new event. | |
| 4823 | var before = lst(hist.done); | |
| 4824 | if (!before || !before.ranges) | |
| 4825 | { pushSelectionToHistory(doc.sel, hist.done); } | |
| 4826 | cur = {changes: [historyChangeFromChange(doc, change)], | |
| 4827 | generation: hist.generation}; | |
| 4828 | hist.done.push(cur); | |
| 4829 | while (hist.done.length > hist.undoDepth) { | |
| 4830 | hist.done.shift(); | |
| 4831 | if (!hist.done[0].ranges) { hist.done.shift(); } | |
| 4832 | } | |
| 4833 | } | |
| 4834 | hist.done.push(selAfter); | |
| 4835 | hist.generation = ++hist.maxGeneration; | |
| 4836 | hist.lastModTime = hist.lastSelTime = time; | |
| 4837 | hist.lastOp = hist.lastSelOp = opId; | |
| 4838 | hist.lastOrigin = hist.lastSelOrigin = change.origin; | |
| 4839 | ||
| 4840 | if (!last) { signal(doc, "historyAdded"); } | |
| 4841 | } | |
| 4842 | ||
| 4843 | function selectionEventCanBeMerged(doc, origin, prev, sel) { | |
| 4844 | var ch = origin.charAt(0); | |
| 4845 | return ch == "*" || | |
| 4846 | ch == "+" && | |
| 4847 | prev.ranges.length == sel.ranges.length && | |
| 4848 | prev.somethingSelected() == sel.somethingSelected() && | |
| 4849 | new Date - doc.history.lastSelTime <= (doc.cm ? doc.cm.options.historyEventDelay : 500) | |
| 4850 | } | |
| 4851 | ||
| 4852 | // Called whenever the selection changes, sets the new selection as | |
| 4853 | // the pending selection in the history, and pushes the old pending | |
| 4854 | // selection into the 'done' array when it was significantly | |
| 4855 | // different (in number of selected ranges, emptiness, or time). | |
| 4856 | function addSelectionToHistory(doc, sel, opId, options) { | |
| 4857 | var hist = doc.history, origin = options && options.origin; | |
| 4858 | ||
| 4859 | // A new event is started when the previous origin does not match | |
| 4860 | // the current, or the origins don't allow matching. Origins | |
| 4861 | // starting with * are always merged, those starting with + are | |
| 4862 | // merged when similar and close together in time. | |
| 4863 | if (opId == hist.lastSelOp || | |
| 4864 | (origin && hist.lastSelOrigin == origin && | |
| 4865 | (hist.lastModTime == hist.lastSelTime && hist.lastOrigin == origin || | |
| 4866 | selectionEventCanBeMerged(doc, origin, lst(hist.done), sel)))) | |
| 4867 | { hist.done[hist.done.length - 1] = sel; } | |
| 4868 | else | |
| 4869 | { pushSelectionToHistory(sel, hist.done); } | |
| 4870 | ||
| 4871 | hist.lastSelTime = +new Date; | |
| 4872 | hist.lastSelOrigin = origin; | |
| 4873 | hist.lastSelOp = opId; | |
| 4874 | if (options && options.clearRedo !== false) | |
| 4875 | { clearSelectionEvents(hist.undone); } | |
| 4876 | } | |
| 4877 | ||
| 4878 | function pushSelectionToHistory(sel, dest) { | |
| 4879 | var top = lst(dest); | |
| 4880 | if (!(top && top.ranges && top.equals(sel))) | |
| 4881 | { dest.push(sel); } | |
| 4882 | } | |
| 4883 | ||
| 4884 | // Used to store marked span information in the history. | |
| 4885 | function attachLocalSpans(doc, change, from, to) { | |
| 4886 | var existing = change["spans_" + doc.id], n = 0; | |
| 4887 | doc.iter(Math.max(doc.first, from), Math.min(doc.first + doc.size, to), function (line) { | |
| 4888 | if (line.markedSpans) | |
| 4889 | { (existing || (existing = change["spans_" + doc.id] = {}))[n] = line.markedSpans; } | |
| 4890 | ++n; | |
| 4891 | }); | |
| 4892 | } | |
| 4893 | ||
| 4894 | // When un/re-doing restores text containing marked spans, those | |
| 4895 | // that have been explicitly cleared should not be restored. | |
| 4896 | function removeClearedSpans(spans) { | |
| 4897 | if (!spans) { return null } | |
| 4898 | var out; | |
| 4899 | for (var i = 0; i < spans.length; ++i) { | |
| 4900 | if (spans[i].marker.explicitlyCleared) { if (!out) { out = spans.slice(0, i); } } | |
| 4901 | else if (out) { out.push(spans[i]); } | |
| 4902 | } | |
| 4903 | return !out ? spans : out.length ? out : null | |
| 4904 | } | |
| 4905 | ||
| 4906 | // Retrieve and filter the old marked spans stored in a change event. | |
| 4907 | function getOldSpans(doc, change) { | |
| 4908 | var found = change["spans_" + doc.id]; | |
| 4909 | if (!found) { return null } | |
| 4910 | var nw = []; | |
| 4911 | for (var i = 0; i < change.text.length; ++i) | |
| 4912 | { nw.push(removeClearedSpans(found[i])); } | |
| 4913 | return nw | |
| 4914 | } | |
| 4915 | ||
| 4916 | // Used for un/re-doing changes from the history. Combines the | |
| 4917 | // result of computing the existing spans with the set of spans that | |
| 4918 | // existed in the history (so that deleting around a span and then | |
| 4919 | // undoing brings back the span). | |
| 4920 | function mergeOldSpans(doc, change) { | |
| 4921 | var old = getOldSpans(doc, change); | |
| 4922 | var stretched = stretchSpansOverChange(doc, change); | |
| 4923 | if (!old) { return stretched } | |
| 4924 | if (!stretched) { return old } | |
| 4925 | ||
| 4926 | for (var i = 0; i < old.length; ++i) { | |
| 4927 | var oldCur = old[i], stretchCur = stretched[i]; | |
| 4928 | if (oldCur && stretchCur) { | |
| 4929 | spans: for (var j = 0; j < stretchCur.length; ++j) { | |
| 4930 | var span = stretchCur[j]; | |
| 4931 | for (var k = 0; k < oldCur.length; ++k) | |
| 4932 | { if (oldCur[k].marker == span.marker) { continue spans } } | |
| 4933 | oldCur.push(span); | |
| 4934 | } | |
| 4935 | } else if (stretchCur) { | |
| 4936 | old[i] = stretchCur; | |
| 4937 | } | |
| 4938 | } | |
| 4939 | return old | |
| 4940 | } | |
| 4941 | ||
| 4942 | // Used both to provide a JSON-safe object in .getHistory, and, when | |
| 4943 | // detaching a document, to split the history in two | |
| 4944 | function copyHistoryArray(events, newGroup, instantiateSel) { | |
| 4945 | var copy = []; | |
| 4946 | for (var i = 0; i < events.length; ++i) { | |
| 4947 | var event = events[i]; | |
| 4948 | if (event.ranges) { | |
| 4949 | copy.push(instantiateSel ? Selection.prototype.deepCopy.call(event) : event); | |
| 4950 | continue | |
| 4951 | } | |
| 4952 | var changes = event.changes, newChanges = []; | |
| 4953 | copy.push({changes: newChanges}); | |
| 4954 | for (var j = 0; j < changes.length; ++j) { | |
| 4955 | var change = changes[j], m = (void 0); | |
| 4956 | newChanges.push({from: change.from, to: change.to, text: change.text}); | |
| 4957 | if (newGroup) { for (var prop in change) { if (m = prop.match(/^spans_(\d+)$/)) { | |
| 4958 | if (indexOf(newGroup, Number(m[1])) > -1) { | |
| 4959 | lst(newChanges)[prop] = change[prop]; | |
| 4960 | delete change[prop]; | |
| 4961 | } | |
| 4962 | } } } | |
| 4963 | } | |
| 4964 | } | |
| 4965 | return copy | |
| 4966 | } | |
| 4967 | ||
| 4968 | // The 'scroll' parameter given to many of these indicated whether | |
| 4969 | // the new cursor position should be scrolled into view after | |
| 4970 | // modifying the selection. | |
| 4971 | ||
| 4972 | // If shift is held or the extend flag is set, extends a range to | |
| 4973 | // include a given position (and optionally a second position). | |
| 4974 | // Otherwise, simply returns the range between the given positions. | |
| 4975 | // Used for cursor motion and such. | |
| 4976 | function extendRange(range, head, other, extend) { | |
| 4977 | if (extend) { | |
| 4978 | var anchor = range.anchor; | |
| 4979 | if (other) { | |
| 4980 | var posBefore = cmp(head, anchor) < 0; | |
| 4981 | if (posBefore != (cmp(other, anchor) < 0)) { | |
| 4982 | anchor = head; | |
| 4983 | head = other; | |
| 4984 | } else if (posBefore != (cmp(head, other) < 0)) { | |
| 4985 | head = other; | |
| 4986 | } | |
| 4987 | } | |
| 4988 | return new Range(anchor, head) | |
| 4989 | } else { | |
| 4990 | return new Range(other || head, head) | |
| 4991 | } | |
| 4992 | } | |
| 4993 | ||
| 4994 | // Extend the primary selection range, discard the rest. | |
| 4995 | function extendSelection(doc, head, other, options, extend) { | |
| 4996 | if (extend == null) { extend = doc.cm && (doc.cm.display.shift || doc.extend); } | |
| 4997 | setSelection(doc, new Selection([extendRange(doc.sel.primary(), head, other, extend)], 0), options); | |
| 4998 | } | |
| 4999 | ||
| 5000 | // Extend all selections (pos is an array of selections with length | |
| 5001 | // equal the number of selections) | |
| 5002 | function extendSelections(doc, heads, options) { | |
| 5003 | var out = []; | |
| 5004 | var extend = doc.cm && (doc.cm.display.shift || doc.extend); | |
| 5005 | for (var i = 0; i < doc.sel.ranges.length; i++) | |
| 5006 | { out[i] = extendRange(doc.sel.ranges[i], heads[i], null, extend); } | |
| 5007 | var newSel = normalizeSelection(doc.cm, out, doc.sel.primIndex); | |
| 5008 | setSelection(doc, newSel, options); | |
| 5009 | } | |
| 5010 | ||
| 5011 | // Updates a single range in the selection. | |
| 5012 | function replaceOneSelection(doc, i, range, options) { | |
| 5013 | var ranges = doc.sel.ranges.slice(0); | |
| 5014 | ranges[i] = range; | |
| 5015 | setSelection(doc, normalizeSelection(doc.cm, ranges, doc.sel.primIndex), options); | |
| 5016 | } | |
| 5017 | ||
| 5018 | // Reset the selection to a single range. | |
| 5019 | function setSimpleSelection(doc, anchor, head, options) { | |
| 5020 | setSelection(doc, simpleSelection(anchor, head), options); | |
| 5021 | } | |
| 5022 | ||
| 5023 | // Give beforeSelectionChange handlers a change to influence a | |
| 5024 | // selection update. | |
| 5025 | function filterSelectionChange(doc, sel, options) { | |
| 5026 | var obj = { | |
| 5027 | ranges: sel.ranges, | |
| 5028 | update: function(ranges) { | |
| 5029 | var this$1 = this; | |
| 5030 | ||
| 5031 | this.ranges = []; | |
| 5032 | for (var i = 0; i < ranges.length; i++) | |
| 5033 | { this$1.ranges[i] = new Range(clipPos(doc, ranges[i].anchor), | |
| 5034 | clipPos(doc, ranges[i].head)); } | |
| 5035 | }, | |
| 5036 | origin: options && options.origin | |
| 5037 | }; | |
| 5038 | signal(doc, "beforeSelectionChange", doc, obj); | |
| 5039 | if (doc.cm) { signal(doc.cm, "beforeSelectionChange", doc.cm, obj); } | |
| 5040 | if (obj.ranges != sel.ranges) { return normalizeSelection(doc.cm, obj.ranges, obj.ranges.length - 1) } | |
| 5041 | else { return sel } | |
| 5042 | } | |
| 5043 | ||
| 5044 | function setSelectionReplaceHistory(doc, sel, options) { | |
| 5045 | var done = doc.history.done, last = lst(done); | |
| 5046 | if (last && last.ranges) { | |
| 5047 | done[done.length - 1] = sel; | |
| 5048 | setSelectionNoUndo(doc, sel, options); | |
| 5049 | } else { | |
| 5050 | setSelection(doc, sel, options); | |
| 5051 | } | |
| 5052 | } | |
| 5053 | ||
| 5054 | // Set a new selection. | |
| 5055 | function setSelection(doc, sel, options) { | |
| 5056 | setSelectionNoUndo(doc, sel, options); | |
| 5057 | addSelectionToHistory(doc, doc.sel, doc.cm ? doc.cm.curOp.id : NaN, options); | |
| 5058 | } | |
| 5059 | ||
| 5060 | function setSelectionNoUndo(doc, sel, options) { | |
| 5061 | if (hasHandler(doc, "beforeSelectionChange") || doc.cm && hasHandler(doc.cm, "beforeSelectionChange")) | |
| 5062 | { sel = filterSelectionChange(doc, sel, options); } | |
| 5063 | ||
| 5064 | var bias = options && options.bias || | |
| 5065 | (cmp(sel.primary().head, doc.sel.primary().head) < 0 ? -1 : 1); | |
| 5066 | setSelectionInner(doc, skipAtomicInSelection(doc, sel, bias, true)); | |
| 5067 | ||
| 5068 | if (!(options && options.scroll === false) && doc.cm) | |
| 5069 | { ensureCursorVisible(doc.cm); } | |
| 5070 | } | |
| 5071 | ||
| 5072 | function setSelectionInner(doc, sel) { | |
| 5073 | if (sel.equals(doc.sel)) { return } | |
| 5074 | ||
| 5075 | doc.sel = sel; | |
| 5076 | ||
| 5077 | if (doc.cm) { | |
| 5078 | doc.cm.curOp.updateInput = doc.cm.curOp.selectionChanged = true; | |
| 5079 | signalCursorActivity(doc.cm); | |
| 5080 | } | |
| 5081 | signalLater(doc, "cursorActivity", doc); | |
| 5082 | } | |
| 5083 | ||
| 5084 | // Verify that the selection does not partially select any atomic | |
| 5085 | // marked ranges. | |
| 5086 | function reCheckSelection(doc) { | |
| 5087 | setSelectionInner(doc, skipAtomicInSelection(doc, doc.sel, null, false)); | |
| 5088 | } | |
| 5089 | ||
| 5090 | // Return a selection that does not partially select any atomic | |
| 5091 | // ranges. | |
| 5092 | function skipAtomicInSelection(doc, sel, bias, mayClear) { | |
| 5093 | var out; | |
| 5094 | for (var i = 0; i < sel.ranges.length; i++) { | |
| 5095 | var range = sel.ranges[i]; | |
| 5096 | var old = sel.ranges.length == doc.sel.ranges.length && doc.sel.ranges[i]; | |
| 5097 | var newAnchor = skipAtomic(doc, range.anchor, old && old.anchor, bias, mayClear); | |
| 5098 | var newHead = skipAtomic(doc, range.head, old && old.head, bias, mayClear); | |
| 5099 | if (out || newAnchor != range.anchor || newHead != range.head) { | |
| 5100 | if (!out) { out = sel.ranges.slice(0, i); } | |
| 5101 | out[i] = new Range(newAnchor, newHead); | |
| 5102 | } | |
| 5103 | } | |
| 5104 | return out ? normalizeSelection(doc.cm, out, sel.primIndex) : sel | |
| 5105 | } | |
| 5106 | ||
| 5107 | function skipAtomicInner(doc, pos, oldPos, dir, mayClear) { | |
| 5108 | var line = getLine(doc, pos.line); | |
| 5109 | if (line.markedSpans) { for (var i = 0; i < line.markedSpans.length; ++i) { | |
| 5110 | var sp = line.markedSpans[i], m = sp.marker; | |
| 5111 | if ((sp.from == null || (m.inclusiveLeft ? sp.from <= pos.ch : sp.from < pos.ch)) && | |
| 5112 | (sp.to == null || (m.inclusiveRight ? sp.to >= pos.ch : sp.to > pos.ch))) { | |
| 5113 | if (mayClear) { | |
| 5114 | signal(m, "beforeCursorEnter"); | |
| 5115 | if (m.explicitlyCleared) { | |
| 5116 | if (!line.markedSpans) { break } | |
| 5117 | else {--i; continue} | |
| 5118 | } | |
| 5119 | } | |
| 5120 | if (!m.atomic) { continue } | |
| 5121 | ||
| 5122 | if (oldPos) { | |
| 5123 | var near = m.find(dir < 0 ? 1 : -1), diff = (void 0); | |
| 5124 | if (dir < 0 ? m.inclusiveRight : m.inclusiveLeft) | |
| 5125 | { near = movePos(doc, near, -dir, near && near.line == pos.line ? line : null); } | |
| 5126 | if (near && near.line == pos.line && (diff = cmp(near, oldPos)) && (dir < 0 ? diff < 0 : diff > 0)) | |
| 5127 | { return skipAtomicInner(doc, near, pos, dir, mayClear) } | |
| 5128 | } | |
| 5129 | ||
| 5130 | var far = m.find(dir < 0 ? -1 : 1); | |
| 5131 | if (dir < 0 ? m.inclusiveLeft : m.inclusiveRight) | |
| 5132 | { far = movePos(doc, far, dir, far.line == pos.line ? line : null); } | |
| 5133 | return far ? skipAtomicInner(doc, far, pos, dir, mayClear) : null | |
| 5134 | } | |
| 5135 | } } | |
| 5136 | return pos | |
| 5137 | } | |
| 5138 | ||
| 5139 | // Ensure a given position is not inside an atomic range. | |
| 5140 | function skipAtomic(doc, pos, oldPos, bias, mayClear) { | |
| 5141 | var dir = bias || 1; | |
| 5142 | var found = skipAtomicInner(doc, pos, oldPos, dir, mayClear) || | |
| 5143 | (!mayClear && skipAtomicInner(doc, pos, oldPos, dir, true)) || | |
| 5144 | skipAtomicInner(doc, pos, oldPos, -dir, mayClear) || | |
| 5145 | (!mayClear && skipAtomicInner(doc, pos, oldPos, -dir, true)); | |
| 5146 | if (!found) { | |
| 5147 | doc.cantEdit = true; | |
| 5148 | return Pos(doc.first, 0) | |
| 5149 | } | |
| 5150 | return found | |
| 5151 | } | |
| 5152 | ||
| 5153 | function movePos(doc, pos, dir, line) { | |
| 5154 | if (dir < 0 && pos.ch == 0) { | |
| 5155 | if (pos.line > doc.first) { return clipPos(doc, Pos(pos.line - 1)) } | |
| 5156 | else { return null } | |
| 5157 | } else if (dir > 0 && pos.ch == (line || getLine(doc, pos.line)).text.length) { | |
| 5158 | if (pos.line < doc.first + doc.size - 1) { return Pos(pos.line + 1, 0) } | |
| 5159 | else { return null } | |
| 5160 | } else { | |
| 5161 | return new Pos(pos.line, pos.ch + dir) | |
| 5162 | } | |
| 5163 | } | |
| 5164 | ||
| 5165 | function selectAll(cm) { | |
| 5166 | cm.setSelection(Pos(cm.firstLine(), 0), Pos(cm.lastLine()), sel_dontScroll); | |
| 5167 | } | |
| 5168 | ||
| 5169 | // UPDATING | |
| 5170 | ||
| 5171 | // Allow "beforeChange" event handlers to influence a change | |
| 5172 | function filterChange(doc, change, update) { | |
| 5173 | var obj = { | |
| 5174 | canceled: false, | |
| 5175 | from: change.from, | |
| 5176 | to: change.to, | |
| 5177 | text: change.text, | |
| 5178 | origin: change.origin, | |
| 5179 | cancel: function () { return obj.canceled = true; } | |
| 5180 | }; | |
| 5181 | if (update) { obj.update = function (from, to, text, origin) { | |
| 5182 | if (from) { obj.from = clipPos(doc, from); } | |
| 5183 | if (to) { obj.to = clipPos(doc, to); } | |
| 5184 | if (text) { obj.text = text; } | |
| 5185 | if (origin !== undefined) { obj.origin = origin; } | |
| 5186 | }; } | |
| 5187 | signal(doc, "beforeChange", doc, obj); | |
| 5188 | if (doc.cm) { signal(doc.cm, "beforeChange", doc.cm, obj); } | |
| 5189 | ||
| 5190 | if (obj.canceled) { return null } | |
| 5191 | return {from: obj.from, to: obj.to, text: obj.text, origin: obj.origin} | |
| 5192 | } | |
| 5193 | ||
| 5194 | // Apply a change to a document, and add it to the document's | |
| 5195 | // history, and propagating it to all linked documents. | |
| 5196 | function makeChange(doc, change, ignoreReadOnly) { | |
| 5197 | if (doc.cm) { | |
| 5198 | if (!doc.cm.curOp) { return operation(doc.cm, makeChange)(doc, change, ignoreReadOnly) } | |
| 5199 | if (doc.cm.state.suppressEdits) { return } | |
| 5200 | } | |
| 5201 | ||
| 5202 | if (hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange")) { | |
| 5203 | change = filterChange(doc, change, true); | |
| 5204 | if (!change) { return } | |
| 5205 | } | |
| 5206 | ||
| 5207 | // Possibly split or suppress the update based on the presence | |
| 5208 | // of read-only spans in its range. | |
| 5209 | var split = sawReadOnlySpans && !ignoreReadOnly && removeReadOnlyRanges(doc, change.from, change.to); | |
| 5210 | if (split) { | |
| 5211 | for (var i = split.length - 1; i >= 0; --i) | |
| 5212 | { makeChangeInner(doc, {from: split[i].from, to: split[i].to, text: i ? [""] : change.text, origin: change.origin}); } | |
| 5213 | } else { | |
| 5214 | makeChangeInner(doc, change); | |
| 5215 | } | |
| 5216 | } | |
| 5217 | ||
| 5218 | function makeChangeInner(doc, change) { | |
| 5219 | if (change.text.length == 1 && change.text[0] == "" && cmp(change.from, change.to) == 0) { return } | |
| 5220 | var selAfter = computeSelAfterChange(doc, change); | |
| 5221 | addChangeToHistory(doc, change, selAfter, doc.cm ? doc.cm.curOp.id : NaN); | |
| 5222 | ||
| 5223 | makeChangeSingleDoc(doc, change, selAfter, stretchSpansOverChange(doc, change)); | |
| 5224 | var rebased = []; | |
| 5225 | ||
| 5226 | linkedDocs(doc, function (doc, sharedHist) { | |
| 5227 | if (!sharedHist && indexOf(rebased, doc.history) == -1) { | |
| 5228 | rebaseHist(doc.history, change); | |
| 5229 | rebased.push(doc.history); | |
| 5230 | } | |
| 5231 | makeChangeSingleDoc(doc, change, null, stretchSpansOverChange(doc, change)); | |
| 5232 | }); | |
| 5233 | } | |
| 5234 | ||
| 5235 | // Revert a change stored in a document's history. | |
| 5236 | function makeChangeFromHistory(doc, type, allowSelectionOnly) { | |
| 5237 | var suppress = doc.cm && doc.cm.state.suppressEdits; | |
| 5238 | if (suppress && !allowSelectionOnly) { return } | |
| 5239 | ||
| 5240 | var hist = doc.history, event, selAfter = doc.sel; | |
| 5241 | var source = type == "undo" ? hist.done : hist.undone, dest = type == "undo" ? hist.undone : hist.done; | |
| 5242 | ||
| 5243 | // Verify that there is a useable event (so that ctrl-z won't | |
| 5244 | // needlessly clear selection events) | |
| 5245 | var i = 0; | |
| 5246 | for (; i < source.length; i++) { | |
| 5247 | event = source[i]; | |
| 5248 | if (allowSelectionOnly ? event.ranges && !event.equals(doc.sel) : !event.ranges) | |
| 5249 | { break } | |
| 5250 | } | |
| 5251 | if (i == source.length) { return } | |
| 5252 | hist.lastOrigin = hist.lastSelOrigin = null; | |
| 5253 | ||
| 5254 | for (;;) { | |
| 5255 | event = source.pop(); | |
| 5256 | if (event.ranges) { | |
| 5257 | pushSelectionToHistory(event, dest); | |
| 5258 | if (allowSelectionOnly && !event.equals(doc.sel)) { | |
| 5259 | setSelection(doc, event, {clearRedo: false}); | |
| 5260 | return | |
| 5261 | } | |
| 5262 | selAfter = event; | |
| 5263 | } else if (suppress) { | |
| 5264 | source.push(event); | |
| 5265 | return | |
| 5266 | } else { break } | |
| 5267 | } | |
| 5268 | ||
| 5269 | // Build up a reverse change object to add to the opposite history | |
| 5270 | // stack (redo when undoing, and vice versa). | |
| 5271 | var antiChanges = []; | |
| 5272 | pushSelectionToHistory(selAfter, dest); | |
| 5273 | dest.push({changes: antiChanges, generation: hist.generation}); | |
| 5274 | hist.generation = event.generation || ++hist.maxGeneration; | |
| 5275 | ||
| 5276 | var filter = hasHandler(doc, "beforeChange") || doc.cm && hasHandler(doc.cm, "beforeChange"); | |
| 5277 | ||
| 5278 | var loop = function ( i ) { | |
| 5279 | var change = event.changes[i]; | |
| 5280 | change.origin = type; | |
| 5281 | if (filter && !filterChange(doc, change, false)) { | |
| 5282 | source.length = 0; | |
| 5283 | return {} | |
| 5284 | } | |
| 5285 | ||
| 5286 | antiChanges.push(historyChangeFromChange(doc, change)); | |
| 5287 | ||
| 5288 | var after = i ? computeSelAfterChange(doc, change) : lst(source); | |
| 5289 | makeChangeSingleDoc(doc, change, after, mergeOldSpans(doc, change)); | |
| 5290 | if (!i && doc.cm) { doc.cm.scrollIntoView({from: change.from, to: changeEnd(change)}); } | |
| 5291 | var rebased = []; | |
| 5292 | ||
| 5293 | // Propagate to the linked documents | |
| 5294 | linkedDocs(doc, function (doc, sharedHist) { | |
| 5295 | if (!sharedHist && indexOf(rebased, doc.history) == -1) { | |
| 5296 | rebaseHist(doc.history, change); | |
| 5297 | rebased.push(doc.history); | |
| 5298 | } | |
| 5299 | makeChangeSingleDoc(doc, change, null, mergeOldSpans(doc, change)); | |
| 5300 | }); | |
| 5301 | }; | |
| 5302 | ||
| 5303 | for (var i$1 = event.changes.length - 1; i$1 >= 0; --i$1) { | |
| 5304 | var returned = loop( i$1 ); | |
| 5305 | ||
| 5306 | if ( returned ) return returned.v; | |
| 5307 | } | |
| 5308 | } | |
| 5309 | ||
| 5310 | // Sub-views need their line numbers shifted when text is added | |
| 5311 | // above or below them in the parent document. | |
| 5312 | function shiftDoc(doc, distance) { | |
| 5313 | if (distance == 0) { return } | |
| 5314 | doc.first += distance; | |
| 5315 | doc.sel = new Selection(map(doc.sel.ranges, function (range) { return new Range( | |
| 5316 | Pos(range.anchor.line + distance, range.anchor.ch), | |
| 5317 | Pos(range.head.line + distance, range.head.ch) | |
| 5318 | ); }), doc.sel.primIndex); | |
| 5319 | if (doc.cm) { | |
| 5320 | regChange(doc.cm, doc.first, doc.first - distance, distance); | |
| 5321 | for (var d = doc.cm.display, l = d.viewFrom; l < d.viewTo; l++) | |
| 5322 | { regLineChange(doc.cm, l, "gutter"); } | |
| 5323 | } | |
| 5324 | } | |
| 5325 | ||
| 5326 | // More lower-level change function, handling only a single document | |
| 5327 | // (not linked ones). | |
| 5328 | function makeChangeSingleDoc(doc, change, selAfter, spans) { | |
| 5329 | if (doc.cm && !doc.cm.curOp) | |
| 5330 | { return operation(doc.cm, makeChangeSingleDoc)(doc, change, selAfter, spans) } | |
| 5331 | ||
| 5332 | if (change.to.line < doc.first) { | |
| 5333 | shiftDoc(doc, change.text.length - 1 - (change.to.line - change.from.line)); | |
| 5334 | return | |
| 5335 | } | |
| 5336 | if (change.from.line > doc.lastLine()) { return } | |
| 5337 | ||
| 5338 | // Clip the change to the size of this doc | |
| 5339 | if (change.from.line < doc.first) { | |
| 5340 | var shift = change.text.length - 1 - (doc.first - change.from.line); | |
| 5341 | shiftDoc(doc, shift); | |
| 5342 | change = {from: Pos(doc.first, 0), to: Pos(change.to.line + shift, change.to.ch), | |
| 5343 | text: [lst(change.text)], origin: change.origin}; | |
| 5344 | } | |
| 5345 | var last = doc.lastLine(); | |
| 5346 | if (change.to.line > last) { | |
| 5347 | change = {from: change.from, to: Pos(last, getLine(doc, last).text.length), | |
| 5348 | text: [change.text[0]], origin: change.origin}; | |
| 5349 | } | |
| 5350 | ||
| 5351 | change.removed = getBetween(doc, change.from, change.to); | |
| 5352 | ||
| 5353 | if (!selAfter) { selAfter = computeSelAfterChange(doc, change); } | |
| 5354 | if (doc.cm) { makeChangeSingleDocInEditor(doc.cm, change, spans); } | |
| 5355 | else { updateDoc(doc, change, spans); } | |
| 5356 | setSelectionNoUndo(doc, selAfter, sel_dontScroll); | |
| 5357 | } | |
| 5358 | ||
| 5359 | // Handle the interaction of a change to a document with the editor | |
| 5360 | // that this document is part of. | |
| 5361 | function makeChangeSingleDocInEditor(cm, change, spans) { | |
| 5362 | var doc = cm.doc, display = cm.display, from = change.from, to = change.to; | |
| 5363 | ||
| 5364 | var recomputeMaxLength = false, checkWidthStart = from.line; | |
| 5365 | if (!cm.options.lineWrapping) { | |
| 5366 | checkWidthStart = lineNo(visualLine(getLine(doc, from.line))); | |
| 5367 | doc.iter(checkWidthStart, to.line + 1, function (line) { | |
| 5368 | if (line == display.maxLine) { | |
| 5369 | recomputeMaxLength = true; | |
| 5370 | return true | |
| 5371 | } | |
| 5372 | }); | |
| 5373 | } | |
| 5374 | ||
| 5375 | if (doc.sel.contains(change.from, change.to) > -1) | |
| 5376 | { signalCursorActivity(cm); } | |
| 5377 | ||
| 5378 | updateDoc(doc, change, spans, estimateHeight(cm)); | |
| 5379 | ||
| 5380 | if (!cm.options.lineWrapping) { | |
| 5381 | doc.iter(checkWidthStart, from.line + change.text.length, function (line) { | |
| 5382 | var len = lineLength(line); | |
| 5383 | if (len > display.maxLineLength) { | |
| 5384 | display.maxLine = line; | |
| 5385 | display.maxLineLength = len; | |
| 5386 | display.maxLineChanged = true; | |
| 5387 | recomputeMaxLength = false; | |
| 5388 | } | |
| 5389 | }); | |
| 5390 | if (recomputeMaxLength) { cm.curOp.updateMaxLine = true; } | |
| 5391 | } | |
| 5392 | ||
| 5393 | retreatFrontier(doc, from.line); | |
| 5394 | startWorker(cm, 400); | |
| 5395 | ||
| 5396 | var lendiff = change.text.length - (to.line - from.line) - 1; | |
| 5397 | // Remember that these lines changed, for updating the display | |
| 5398 | if (change.full) | |
| 5399 | { regChange(cm); } | |
| 5400 | else if (from.line == to.line && change.text.length == 1 && !isWholeLineUpdate(cm.doc, change)) | |
| 5401 | { regLineChange(cm, from.line, "text"); } | |
| 5402 | else | |
| 5403 | { regChange(cm, from.line, to.line + 1, lendiff); } | |
| 5404 | ||
| 5405 | var changesHandler = hasHandler(cm, "changes"), changeHandler = hasHandler(cm, "change"); | |
| 5406 | if (changeHandler || changesHandler) { | |
| 5407 | var obj = { | |
| 5408 | from: from, to: to, | |
| 5409 | text: change.text, | |
| 5410 | removed: change.removed, | |
| 5411 | origin: change.origin | |
| 5412 | }; | |
| 5413 | if (changeHandler) { signalLater(cm, "change", cm, obj); } | |
| 5414 | if (changesHandler) { (cm.curOp.changeObjs || (cm.curOp.changeObjs = [])).push(obj); } | |
| 5415 | } | |
| 5416 | cm.display.selForContextMenu = null; | |
| 5417 | } | |
| 5418 | ||
| 5419 | function replaceRange(doc, code, from, to, origin) { | |
| 5420 | var assign; | |
| 5421 | ||
| 5422 | if (!to) { to = from; } | |
| 5423 | if (cmp(to, from) < 0) { (assign = [to, from], from = assign[0], to = assign[1]); } | |
| 5424 | if (typeof code == "string") { code = doc.splitLines(code); } | |
| 5425 | makeChange(doc, {from: from, to: to, text: code, origin: origin}); | |
| 5426 | } | |
| 5427 | ||
| 5428 | // Rebasing/resetting history to deal with externally-sourced changes | |
| 5429 | ||
| 5430 | function rebaseHistSelSingle(pos, from, to, diff) { | |
| 5431 | if (to < pos.line) { | |
| 5432 | pos.line += diff; | |
| 5433 | } else if (from < pos.line) { | |
| 5434 | pos.line = from; | |
| 5435 | pos.ch = 0; | |
| 5436 | } | |
| 5437 | } | |
| 5438 | ||
| 5439 | // Tries to rebase an array of history events given a change in the | |
| 5440 | // document. If the change touches the same lines as the event, the | |
| 5441 | // event, and everything 'behind' it, is discarded. If the change is | |
| 5442 | // before the event, the event's positions are updated. Uses a | |
| 5443 | // copy-on-write scheme for the positions, to avoid having to | |
| 5444 | // reallocate them all on every rebase, but also avoid problems with | |
| 5445 | // shared position objects being unsafely updated. | |
| 5446 | function rebaseHistArray(array, from, to, diff) { | |
| 5447 | for (var i = 0; i < array.length; ++i) { | |
| 5448 | var sub = array[i], ok = true; | |
| 5449 | if (sub.ranges) { | |
| 5450 | if (!sub.copied) { sub = array[i] = sub.deepCopy(); sub.copied = true; } | |
| 5451 | for (var j = 0; j < sub.ranges.length; j++) { | |
| 5452 | rebaseHistSelSingle(sub.ranges[j].anchor, from, to, diff); | |
| 5453 | rebaseHistSelSingle(sub.ranges[j].head, from, to, diff); | |
| 5454 | } | |
| 5455 | continue | |
| 5456 | } | |
| 5457 | for (var j$1 = 0; j$1 < sub.changes.length; ++j$1) { | |
| 5458 | var cur = sub.changes[j$1]; | |
| 5459 | if (to < cur.from.line) { | |
| 5460 | cur.from = Pos(cur.from.line + diff, cur.from.ch); | |
| 5461 | cur.to = Pos(cur.to.line + diff, cur.to.ch); | |
| 5462 | } else if (from <= cur.to.line) { | |
| 5463 | ok = false; | |
| 5464 | break | |
| 5465 | } | |
| 5466 | } | |
| 5467 | if (!ok) { | |
| 5468 | array.splice(0, i + 1); | |
| 5469 | i = 0; | |
| 5470 | } | |
| 5471 | } | |
| 5472 | } | |
| 5473 | ||
| 5474 | function rebaseHist(hist, change) { | |
| 5475 | var from = change.from.line, to = change.to.line, diff = change.text.length - (to - from) - 1; | |
| 5476 | rebaseHistArray(hist.done, from, to, diff); | |
| 5477 | rebaseHistArray(hist.undone, from, to, diff); | |
| 5478 | } | |
| 5479 | ||
| 5480 | // Utility for applying a change to a line by handle or number, | |
| 5481 | // returning the number and optionally registering the line as | |
| 5482 | // changed. | |
| 5483 | function changeLine(doc, handle, changeType, op) { | |
| 5484 | var no = handle, line = handle; | |
| 5485 | if (typeof handle == "number") { line = getLine(doc, clipLine(doc, handle)); } | |
| 5486 | else { no = lineNo(handle); } | |
| 5487 | if (no == null) { return null } | |
| 5488 | if (op(line, no) && doc.cm) { regLineChange(doc.cm, no, changeType); } | |
| 5489 | return line | |
| 5490 | } | |
| 5491 | ||
| 5492 | // The document is represented as a BTree consisting of leaves, with | |
| 5493 | // chunk of lines in them, and branches, with up to ten leaves or | |
| 5494 | // other branch nodes below them. The top node is always a branch | |
| 5495 | // node, and is the document object itself (meaning it has | |
| 5496 | // additional methods and properties). | |
| 5497 | // | |
| 5498 | // All nodes have parent links. The tree is used both to go from | |
| 5499 | // line numbers to line objects, and to go from objects to numbers. | |
| 5500 | // It also indexes by height, and is used to convert between height | |
| 5501 | // and line object, and to find the total height of the document. | |
| 5502 | // | |
| 5503 | // See also http://marijnhaverbeke.nl/blog/codemirror-line-tree.html | |
| 5504 | ||
| 5505 | function LeafChunk(lines) { | |
| 5506 | var this$1 = this; | |
| 5507 | ||
| 5508 | this.lines = lines; | |
| 5509 | this.parent = null; | |
| 5510 | var height = 0; | |
| 5511 | for (var i = 0; i < lines.length; ++i) { | |
| 5512 | lines[i].parent = this$1; | |
| 5513 | height += lines[i].height; | |
| 5514 | } | |
| 5515 | this.height = height; | |
| 5516 | } | |
| 5517 | ||
| 5518 | LeafChunk.prototype = { | |
| 5519 | chunkSize: function() { return this.lines.length }, | |
| 5520 | ||
| 5521 | // Remove the n lines at offset 'at'. | |
| 5522 | removeInner: function(at, n) { | |
| 5523 | var this$1 = this; | |
| 5524 | ||
| 5525 | for (var i = at, e = at + n; i < e; ++i) { | |
| 5526 | var line = this$1.lines[i]; | |
| 5527 | this$1.height -= line.height; | |
| 5528 | cleanUpLine(line); | |
| 5529 | signalLater(line, "delete"); | |
| 5530 | } | |
| 5531 | this.lines.splice(at, n); | |
| 5532 | }, | |
| 5533 | ||
| 5534 | // Helper used to collapse a small branch into a single leaf. | |
| 5535 | collapse: function(lines) { | |
| 5536 | lines.push.apply(lines, this.lines); | |
| 5537 | }, | |
| 5538 | ||
| 5539 | // Insert the given array of lines at offset 'at', count them as | |
| 5540 | // having the given height. | |
| 5541 | insertInner: function(at, lines, height) { | |
| 5542 | var this$1 = this; | |
| 5543 | ||
| 5544 | this.height += height; | |
| 5545 | this.lines = this.lines.slice(0, at).concat(lines).concat(this.lines.slice(at)); | |
| 5546 | for (var i = 0; i < lines.length; ++i) { lines[i].parent = this$1; } | |
| 5547 | }, | |
| 5548 | ||
| 5549 | // Used to iterate over a part of the tree. | |
| 5550 | iterN: function(at, n, op) { | |
| 5551 | var this$1 = this; | |
| 5552 | ||
| 5553 | for (var e = at + n; at < e; ++at) | |
| 5554 | { if (op(this$1.lines[at])) { return true } } | |
| 5555 | } | |
| 5556 | }; | |
| 5557 | ||
| 5558 | function BranchChunk(children) { | |
| 5559 | var this$1 = this; | |
| 5560 | ||
| 5561 | this.children = children; | |
| 5562 | var size = 0, height = 0; | |
| 5563 | for (var i = 0; i < children.length; ++i) { | |
| 5564 | var ch = children[i]; | |
| 5565 | size += ch.chunkSize(); height += ch.height; | |
| 5566 | ch.parent = this$1; | |
| 5567 | } | |
| 5568 | this.size = size; | |
| 5569 | this.height = height; | |
| 5570 | this.parent = null; | |
| 5571 | } | |
| 5572 | ||
| 5573 | BranchChunk.prototype = { | |
| 5574 | chunkSize: function() { return this.size }, | |
| 5575 | ||
| 5576 | removeInner: function(at, n) { | |
| 5577 | var this$1 = this; | |
| 5578 | ||
| 5579 | this.size -= n; | |
| 5580 | for (var i = 0; i < this.children.length; ++i) { | |
| 5581 | var child = this$1.children[i], sz = child.chunkSize(); | |
| 5582 | if (at < sz) { | |
| 5583 | var rm = Math.min(n, sz - at), oldHeight = child.height; | |
| 5584 | child.removeInner(at, rm); | |
| 5585 | this$1.height -= oldHeight - child.height; | |
| 5586 | if (sz == rm) { this$1.children.splice(i--, 1); child.parent = null; } | |
| 5587 | if ((n -= rm) == 0) { break } | |
| 5588 | at = 0; | |
| 5589 | } else { at -= sz; } | |
| 5590 | } | |
| 5591 | // If the result is smaller than 25 lines, ensure that it is a | |
| 5592 | // single leaf node. | |
| 5593 | if (this.size - n < 25 && | |
| 5594 | (this.children.length > 1 || !(this.children[0] instanceof LeafChunk))) { | |
| 5595 | var lines = []; | |
| 5596 | this.collapse(lines); | |
| 5597 | this.children = [new LeafChunk(lines)]; | |
| 5598 | this.children[0].parent = this; | |
| 5599 | } | |
| 5600 | }, | |
| 5601 | ||
| 5602 | collapse: function(lines) { | |
| 5603 | var this$1 = this; | |
| 5604 | ||
| 5605 | for (var i = 0; i < this.children.length; ++i) { this$1.children[i].collapse(lines); } | |
| 5606 | }, | |
| 5607 | ||
| 5608 | insertInner: function(at, lines, height) { | |
| 5609 | var this$1 = this; | |
| 5610 | ||
| 5611 | this.size += lines.length; | |
| 5612 | this.height += height; | |
| 5613 | for (var i = 0; i < this.children.length; ++i) { | |
| 5614 | var child = this$1.children[i], sz = child.chunkSize(); | |
| 5615 | if (at <= sz) { | |
| 5616 | child.insertInner(at, lines, height); | |
| 5617 | if (child.lines && child.lines.length > 50) { | |
| 5618 | // To avoid memory thrashing when child.lines is huge (e.g. first view of a large file), it's never spliced. | |
| 5619 | // Instead, small slices are taken. They're taken in order because sequential memory accesses are fastest. | |
| 5620 | var remaining = child.lines.length % 25 + 25; | |
| 5621 | for (var pos = remaining; pos < child.lines.length;) { | |
| 5622 | var leaf = new LeafChunk(child.lines.slice(pos, pos += 25)); | |
| 5623 | child.height -= leaf.height; | |
| 5624 | this$1.children.splice(++i, 0, leaf); | |
| 5625 | leaf.parent = this$1; | |
| 5626 | } | |
| 5627 | child.lines = child.lines.slice(0, remaining); | |
| 5628 | this$1.maybeSpill(); | |
| 5629 | } | |
| 5630 | break | |
| 5631 | } | |
| 5632 | at -= sz; | |
| 5633 | } | |
| 5634 | }, | |
| 5635 | ||
| 5636 | // When a node has grown, check whether it should be split. | |
| 5637 | maybeSpill: function() { | |
| 5638 | if (this.children.length <= 10) { return } | |
| 5639 | var me = this; | |
| 5640 | do { | |
| 5641 | var spilled = me.children.splice(me.children.length - 5, 5); | |
| 5642 | var sibling = new BranchChunk(spilled); | |
| 5643 | if (!me.parent) { // Become the parent node | |
| 5644 | var copy = new BranchChunk(me.children); | |
| 5645 | copy.parent = me; | |
| 5646 | me.children = [copy, sibling]; | |
| 5647 | me = copy; | |
| 5648 | } else { | |
| 5649 | me.size -= sibling.size; | |
| 5650 | me.height -= sibling.height; | |
| 5651 | var myIndex = indexOf(me.parent.children, me); | |
| 5652 | me.parent.children.splice(myIndex + 1, 0, sibling); | |
| 5653 | } | |
| 5654 | sibling.parent = me.parent; | |
| 5655 | } while (me.children.length > 10) | |
| 5656 | me.parent.maybeSpill(); | |
| 5657 | }, | |
| 5658 | ||
| 5659 | iterN: function(at, n, op) { | |
| 5660 | var this$1 = this; | |
| 5661 | ||
| 5662 | for (var i = 0; i < this.children.length; ++i) { | |
| 5663 | var child = this$1.children[i], sz = child.chunkSize(); | |
| 5664 | if (at < sz) { | |
| 5665 | var used = Math.min(n, sz - at); | |
| 5666 | if (child.iterN(at, used, op)) { return true } | |
| 5667 | if ((n -= used) == 0) { break } | |
| 5668 | at = 0; | |
| 5669 | } else { at -= sz; } | |
| 5670 | } | |
| 5671 | } | |
| 5672 | }; | |
| 5673 | ||
| 5674 | // Line widgets are block elements displayed above or below a line. | |
| 5675 | ||
| 5676 | var LineWidget = function(doc, node, options) { | |
| 5677 | var this$1 = this; | |
| 5678 | ||
| 5679 | if (options) { for (var opt in options) { if (options.hasOwnProperty(opt)) | |
| 5680 | { this$1[opt] = options[opt]; } } } | |
| 5681 | this.doc = doc; | |
| 5682 | this.node = node; | |
| 5683 | }; | |
| 5684 | ||
| 5685 | LineWidget.prototype.clear = function () { | |
| 5686 | var this$1 = this; | |
| 5687 | ||
| 5688 | var cm = this.doc.cm, ws = this.line.widgets, line = this.line, no = lineNo(line); | |
| 5689 | if (no == null || !ws) { return } | |
| 5690 | for (var i = 0; i < ws.length; ++i) { if (ws[i] == this$1) { ws.splice(i--, 1); } } | |
| 5691 | if (!ws.length) { line.widgets = null; } | |
| 5692 | var height = widgetHeight(this); | |
| 5693 | updateLineHeight(line, Math.max(0, line.height - height)); | |
| 5694 | if (cm) { | |
| 5695 | runInOp(cm, function () { | |
| 5696 | adjustScrollWhenAboveVisible(cm, line, -height); | |
| 5697 | regLineChange(cm, no, "widget"); | |
| 5698 | }); | |
| 5699 | signalLater(cm, "lineWidgetCleared", cm, this, no); | |
| 5700 | } | |
| 5701 | }; | |
| 5702 | ||
| 5703 | LineWidget.prototype.changed = function () { | |
| 5704 | var this$1 = this; | |
| 5705 | ||
| 5706 | var oldH = this.height, cm = this.doc.cm, line = this.line; | |
| 5707 | this.height = null; | |
| 5708 | var diff = widgetHeight(this) - oldH; | |
| 5709 | if (!diff) { return } | |
| 5710 | if (!lineIsHidden(this.doc, line)) { updateLineHeight(line, line.height + diff); } | |
| 5711 | if (cm) { | |
| 5712 | runInOp(cm, function () { | |
| 5713 | cm.curOp.forceUpdate = true; | |
| 5714 | adjustScrollWhenAboveVisible(cm, line, diff); | |
| 5715 | signalLater(cm, "lineWidgetChanged", cm, this$1, lineNo(line)); | |
| 5716 | }); | |
| 5717 | } | |
| 5718 | }; | |
| 5719 | eventMixin(LineWidget); | |
| 5720 | ||
| 5721 | function adjustScrollWhenAboveVisible(cm, line, diff) { | |
| 5722 | if (heightAtLine(line) < ((cm.curOp && cm.curOp.scrollTop) || cm.doc.scrollTop)) | |
| 5723 | { addToScrollTop(cm, diff); } | |
| 5724 | } | |
| 5725 | ||
| 5726 | function addLineWidget(doc, handle, node, options) { | |
| 5727 | var widget = new LineWidget(doc, node, options); | |
| 5728 | var cm = doc.cm; | |
| 5729 | if (cm && widget.noHScroll) { cm.display.alignWidgets = true; } | |
| 5730 | changeLine(doc, handle, "widget", function (line) { | |
| 5731 | var widgets = line.widgets || (line.widgets = []); | |
| 5732 | if (widget.insertAt == null) { widgets.push(widget); } | |
| 5733 | else { widgets.splice(Math.min(widgets.length - 1, Math.max(0, widget.insertAt)), 0, widget); } | |
| 5734 | widget.line = line; | |
| 5735 | if (cm && !lineIsHidden(doc, line)) { | |
| 5736 | var aboveVisible = heightAtLine(line) < doc.scrollTop; | |
| 5737 | updateLineHeight(line, line.height + widgetHeight(widget)); | |
| 5738 | if (aboveVisible) { addToScrollTop(cm, widget.height); } | |
| 5739 | cm.curOp.forceUpdate = true; | |
| 5740 | } | |
| 5741 | return true | |
| 5742 | }); | |
| 5743 | if (cm) { signalLater(cm, "lineWidgetAdded", cm, widget, typeof handle == "number" ? handle : lineNo(handle)); } | |
| 5744 | return widget | |
| 5745 | } | |
| 5746 | ||
| 5747 | // TEXTMARKERS | |
| 5748 | ||
| 5749 | // Created with markText and setBookmark methods. A TextMarker is a | |
| 5750 | // handle that can be used to clear or find a marked position in the | |
| 5751 | // document. Line objects hold arrays (markedSpans) containing | |
| 5752 | // {from, to, marker} object pointing to such marker objects, and | |
| 5753 | // indicating that such a marker is present on that line. Multiple | |
| 5754 | // lines may point to the same marker when it spans across lines. | |
| 5755 | // The spans will have null for their from/to properties when the | |
| 5756 | // marker continues beyond the start/end of the line. Markers have | |
| 5757 | // links back to the lines they currently touch. | |
| 5758 | ||
| 5759 | // Collapsed markers have unique ids, in order to be able to order | |
| 5760 | // them, which is needed for uniquely determining an outer marker | |
| 5761 | // when they overlap (they may nest, but not partially overlap). | |
| 5762 | var nextMarkerId = 0; | |
| 5763 | ||
| 5764 | var TextMarker = function(doc, type) { | |
| 5765 | this.lines = []; | |
| 5766 | this.type = type; | |
| 5767 | this.doc = doc; | |
| 5768 | this.id = ++nextMarkerId; | |
| 5769 | }; | |
| 5770 | ||
| 5771 | // Clear the marker. | |
| 5772 | TextMarker.prototype.clear = function () { | |
| 5773 | var this$1 = this; | |
| 5774 | ||
| 5775 | if (this.explicitlyCleared) { return } | |
| 5776 | var cm = this.doc.cm, withOp = cm && !cm.curOp; | |
| 5777 | if (withOp) { startOperation(cm); } | |
| 5778 | if (hasHandler(this, "clear")) { | |
| 5779 | var found = this.find(); | |
| 5780 | if (found) { signalLater(this, "clear", found.from, found.to); } | |
| 5781 | } | |
| 5782 | var min = null, max = null; | |
| 5783 | for (var i = 0; i < this.lines.length; ++i) { | |
| 5784 | var line = this$1.lines[i]; | |
| 5785 | var span = getMarkedSpanFor(line.markedSpans, this$1); | |
| 5786 | if (cm && !this$1.collapsed) { regLineChange(cm, lineNo(line), "text"); } | |
| 5787 | else if (cm) { | |
| 5788 | if (span.to != null) { max = lineNo(line); } | |
| 5789 | if (span.from != null) { min = lineNo(line); } | |
| 5790 | } | |
| 5791 | line.markedSpans = removeMarkedSpan(line.markedSpans, span); | |
| 5792 | if (span.from == null && this$1.collapsed && !lineIsHidden(this$1.doc, line) && cm) | |
| 5793 | { updateLineHeight(line, textHeight(cm.display)); } | |
| 5794 | } | |
| 5795 | if (cm && this.collapsed && !cm.options.lineWrapping) { for (var i$1 = 0; i$1 < this.lines.length; ++i$1) { | |
| 5796 | var visual = visualLine(this$1.lines[i$1]), len = lineLength(visual); | |
| 5797 | if (len > cm.display.maxLineLength) { | |
| 5798 | cm.display.maxLine = visual; | |
| 5799 | cm.display.maxLineLength = len; | |
| 5800 | cm.display.maxLineChanged = true; | |
| 5801 | } | |
| 5802 | } } | |
| 5803 | ||
| 5804 | if (min != null && cm && this.collapsed) { regChange(cm, min, max + 1); } | |
| 5805 | this.lines.length = 0; | |
| 5806 | this.explicitlyCleared = true; | |
| 5807 | if (this.atomic && this.doc.cantEdit) { | |
| 5808 | this.doc.cantEdit = false; | |
| 5809 | if (cm) { reCheckSelection(cm.doc); } | |
| 5810 | } | |
| 5811 | if (cm) { signalLater(cm, "markerCleared", cm, this, min, max); } | |
| 5812 | if (withOp) { endOperation(cm); } | |
| 5813 | if (this.parent) { this.parent.clear(); } | |
| 5814 | }; | |
| 5815 | ||
| 5816 | // Find the position of the marker in the document. Returns a {from, | |
| 5817 | // to} object by default. Side can be passed to get a specific side | |
| 5818 | // -- 0 (both), -1 (left), or 1 (right). When lineObj is true, the | |
| 5819 | // Pos objects returned contain a line object, rather than a line | |
| 5820 | // number (used to prevent looking up the same line twice). | |
| 5821 | TextMarker.prototype.find = function (side, lineObj) { | |
| 5822 | var this$1 = this; | |
| 5823 | ||
| 5824 | if (side == null && this.type == "bookmark") { side = 1; } | |
| 5825 | var from, to; | |
| 5826 | for (var i = 0; i < this.lines.length; ++i) { | |
| 5827 | var line = this$1.lines[i]; | |
| 5828 | var span = getMarkedSpanFor(line.markedSpans, this$1); | |
| 5829 | if (span.from != null) { | |
| 5830 | from = Pos(lineObj ? line : lineNo(line), span.from); | |
| 5831 | if (side == -1) { return from } | |
| 5832 | } | |
| 5833 | if (span.to != null) { | |
| 5834 | to = Pos(lineObj ? line : lineNo(line), span.to); | |
| 5835 | if (side == 1) { return to } | |
| 5836 | } | |
| 5837 | } | |
| 5838 | return from && {from: from, to: to} | |
| 5839 | }; | |
| 5840 | ||
| 5841 | // Signals that the marker's widget changed, and surrounding layout | |
| 5842 | // should be recomputed. | |
| 5843 | TextMarker.prototype.changed = function () { | |
| 5844 | var this$1 = this; | |
| 5845 | ||
| 5846 | var pos = this.find(-1, true), widget = this, cm = this.doc.cm; | |
| 5847 | if (!pos || !cm) { return } | |
| 5848 | runInOp(cm, function () { | |
| 5849 | var line = pos.line, lineN = lineNo(pos.line); | |
| 5850 | var view = findViewForLine(cm, lineN); | |
| 5851 | if (view) { | |
| 5852 | clearLineMeasurementCacheFor(view); | |
| 5853 | cm.curOp.selectionChanged = cm.curOp.forceUpdate = true; | |
| 5854 | } | |
| 5855 | cm.curOp.updateMaxLine = true; | |
| 5856 | if (!lineIsHidden(widget.doc, line) && widget.height != null) { | |
| 5857 | var oldHeight = widget.height; | |
| 5858 | widget.height = null; | |
| 5859 | var dHeight = widgetHeight(widget) - oldHeight; | |
| 5860 | if (dHeight) | |
| 5861 | { updateLineHeight(line, line.height + dHeight); } | |
| 5862 | } | |
| 5863 | signalLater(cm, "markerChanged", cm, this$1); | |
| 5864 | }); | |
| 5865 | }; | |
| 5866 | ||
| 5867 | TextMarker.prototype.attachLine = function (line) { | |
| 5868 | if (!this.lines.length && this.doc.cm) { | |
| 5869 | var op = this.doc.cm.curOp; | |
| 5870 | if (!op.maybeHiddenMarkers || indexOf(op.maybeHiddenMarkers, this) == -1) | |
| 5871 | { (op.maybeUnhiddenMarkers || (op.maybeUnhiddenMarkers = [])).push(this); } | |
| 5872 | } | |
| 5873 | this.lines.push(line); | |
| 5874 | }; | |
| 5875 | ||
| 5876 | TextMarker.prototype.detachLine = function (line) { | |
| 5877 | this.lines.splice(indexOf(this.lines, line), 1); | |
| 5878 | if (!this.lines.length && this.doc.cm) { | |
| 5879 | var op = this.doc.cm.curOp | |
| 5880 | ;(op.maybeHiddenMarkers || (op.maybeHiddenMarkers = [])).push(this); | |
| 5881 | } | |
| 5882 | }; | |
| 5883 | eventMixin(TextMarker); | |
| 5884 | ||
| 5885 | // Create a marker, wire it up to the right lines, and | |
| 5886 | function markText(doc, from, to, options, type) { | |
| 5887 | // Shared markers (across linked documents) are handled separately | |
| 5888 | // (markTextShared will call out to this again, once per | |
| 5889 | // document). | |
| 5890 | if (options && options.shared) { return markTextShared(doc, from, to, options, type) } | |
| 5891 | // Ensure we are in an operation. | |
| 5892 | if (doc.cm && !doc.cm.curOp) { return operation(doc.cm, markText)(doc, from, to, options, type) } | |
| 5893 | ||
| 5894 | var marker = new TextMarker(doc, type), diff = cmp(from, to); | |
| 5895 | if (options) { copyObj(options, marker, false); } | |
| 5896 | // Don't connect empty markers unless clearWhenEmpty is false | |
| 5897 | if (diff > 0 || diff == 0 && marker.clearWhenEmpty !== false) | |
| 5898 | { return marker } | |
| 5899 | if (marker.replacedWith) { | |
| 5900 | // Showing up as a widget implies collapsed (widget replaces text) | |
| 5901 | marker.collapsed = true; | |
| 5902 | marker.widgetNode = eltP("span", [marker.replacedWith], "CodeMirror-widget"); | |
| 5903 | if (!options.handleMouseEvents) { marker.widgetNode.setAttribute("cm-ignore-events", "true"); } | |
| 5904 | if (options.insertLeft) { marker.widgetNode.insertLeft = true; } | |
| 5905 | } | |
| 5906 | if (marker.collapsed) { | |
| 5907 | if (conflictingCollapsedRange(doc, from.line, from, to, marker) || | |
| 5908 | from.line != to.line && conflictingCollapsedRange(doc, to.line, from, to, marker)) | |
| 5909 | { throw new Error("Inserting collapsed marker partially overlapping an existing one") } | |
| 5910 | seeCollapsedSpans(); | |
| 5911 | } | |
| 5912 | ||
| 5913 | if (marker.addToHistory) | |
| 5914 | { addChangeToHistory(doc, {from: from, to: to, origin: "markText"}, doc.sel, NaN); } | |
| 5915 | ||
| 5916 | var curLine = from.line, cm = doc.cm, updateMaxLine; | |
| 5917 | doc.iter(curLine, to.line + 1, function (line) { | |
| 5918 | if (cm && marker.collapsed && !cm.options.lineWrapping && visualLine(line) == cm.display.maxLine) | |
| 5919 | { updateMaxLine = true; } | |
| 5920 | if (marker.collapsed && curLine != from.line) { updateLineHeight(line, 0); } | |
| 5921 | addMarkedSpan(line, new MarkedSpan(marker, | |
| 5922 | curLine == from.line ? from.ch : null, | |
| 5923 | curLine == to.line ? to.ch : null)); | |
| 5924 | ++curLine; | |
| 5925 | }); | |
| 5926 | // lineIsHidden depends on the presence of the spans, so needs a second pass | |
| 5927 | if (marker.collapsed) { doc.iter(from.line, to.line + 1, function (line) { | |
| 5928 | if (lineIsHidden(doc, line)) { updateLineHeight(line, 0); } | |
| 5929 | }); } | |
| 5930 | ||
| 5931 | if (marker.clearOnEnter) { on(marker, "beforeCursorEnter", function () { return marker.clear(); }); } | |
| 5932 | ||
| 5933 | if (marker.readOnly) { | |
| 5934 | seeReadOnlySpans(); | |
| 5935 | if (doc.history.done.length || doc.history.undone.length) | |
| 5936 | { doc.clearHistory(); } | |
| 5937 | } | |
| 5938 | if (marker.collapsed) { | |
| 5939 | marker.id = ++nextMarkerId; | |
| 5940 | marker.atomic = true; | |
| 5941 | } | |
| 5942 | if (cm) { | |
| 5943 | // Sync editor state | |
| 5944 | if (updateMaxLine) { cm.curOp.updateMaxLine = true; } | |
| 5945 | if (marker.collapsed) | |
| 5946 | { regChange(cm, from.line, to.line + 1); } | |
| 5947 | else if (marker.className || marker.title || marker.startStyle || marker.endStyle || marker.css) | |
| 5948 | { for (var i = from.line; i <= to.line; i++) { regLineChange(cm, i, "text"); } } | |
| 5949 | if (marker.atomic) { reCheckSelection(cm.doc); } | |
| 5950 | signalLater(cm, "markerAdded", cm, marker); | |
| 5951 | } | |
| 5952 | return marker | |
| 5953 | } | |
| 5954 | ||
| 5955 | // SHARED TEXTMARKERS | |
| 5956 | ||
| 5957 | // A shared marker spans multiple linked documents. It is | |
| 5958 | // implemented as a meta-marker-object controlling multiple normal | |
| 5959 | // markers. | |
| 5960 | var SharedTextMarker = function(markers, primary) { | |
| 5961 | var this$1 = this; | |
| 5962 | ||
| 5963 | this.markers = markers; | |
| 5964 | this.primary = primary; | |
| 5965 | for (var i = 0; i < markers.length; ++i) | |
| 5966 | { markers[i].parent = this$1; } | |
| 5967 | }; | |
| 5968 | ||
| 5969 | SharedTextMarker.prototype.clear = function () { | |
| 5970 | var this$1 = this; | |
| 5971 | ||
| 5972 | if (this.explicitlyCleared) { return } | |
| 5973 | this.explicitlyCleared = true; | |
| 5974 | for (var i = 0; i < this.markers.length; ++i) | |
| 5975 | { this$1.markers[i].clear(); } | |
| 5976 | signalLater(this, "clear"); | |
| 5977 | }; | |
| 5978 | ||
| 5979 | SharedTextMarker.prototype.find = function (side, lineObj) { | |
| 5980 | return this.primary.find(side, lineObj) | |
| 5981 | }; | |
| 5982 | eventMixin(SharedTextMarker); | |
| 5983 | ||
| 5984 | function markTextShared(doc, from, to, options, type) { | |
| 5985 | options = copyObj(options); | |
| 5986 | options.shared = false; | |
| 5987 | var markers = [markText(doc, from, to, options, type)], primary = markers[0]; | |
| 5988 | var widget = options.widgetNode; | |
| 5989 | linkedDocs(doc, function (doc) { | |
| 5990 | if (widget) { options.widgetNode = widget.cloneNode(true); } | |
| 5991 | markers.push(markText(doc, clipPos(doc, from), clipPos(doc, to), options, type)); | |
| 5992 | for (var i = 0; i < doc.linked.length; ++i) | |
| 5993 | { if (doc.linked[i].isParent) { return } } | |
| 5994 | primary = lst(markers); | |
| 5995 | }); | |
| 5996 | return new SharedTextMarker(markers, primary) | |
| 5997 | } | |
| 5998 | ||
| 5999 | function findSharedMarkers(doc) { | |
| 6000 | return doc.findMarks(Pos(doc.first, 0), doc.clipPos(Pos(doc.lastLine())), function (m) { return m.parent; }) | |
| 6001 | } | |
| 6002 | ||
| 6003 | function copySharedMarkers(doc, markers) { | |
| 6004 | for (var i = 0; i < markers.length; i++) { | |
| 6005 | var marker = markers[i], pos = marker.find(); | |
| 6006 | var mFrom = doc.clipPos(pos.from), mTo = doc.clipPos(pos.to); | |
| 6007 | if (cmp(mFrom, mTo)) { | |
| 6008 | var subMark = markText(doc, mFrom, mTo, marker.primary, marker.primary.type); | |
| 6009 | marker.markers.push(subMark); | |
| 6010 | subMark.parent = marker; | |
| 6011 | } | |
| 6012 | } | |
| 6013 | } | |
| 6014 | ||
| 6015 | function detachSharedMarkers(markers) { | |
| 6016 | var loop = function ( i ) { | |
| 6017 | var marker = markers[i], linked = [marker.primary.doc]; | |
| 6018 | linkedDocs(marker.primary.doc, function (d) { return linked.push(d); }); | |
| 6019 | for (var j = 0; j < marker.markers.length; j++) { | |
| 6020 | var subMarker = marker.markers[j]; | |
| 6021 | if (indexOf(linked, subMarker.doc) == -1) { | |
| 6022 | subMarker.parent = null; | |
| 6023 | marker.markers.splice(j--, 1); | |
| 6024 | } | |
| 6025 | } | |
| 6026 | }; | |
| 6027 | ||
| 6028 | for (var i = 0; i < markers.length; i++) loop( i ); | |
| 6029 | } | |
| 6030 | ||
| 6031 | var nextDocId = 0; | |
| 6032 | var Doc = function(text, mode, firstLine, lineSep, direction) { | |
| 6033 | if (!(this instanceof Doc)) { return new Doc(text, mode, firstLine, lineSep, direction) } | |
| 6034 | if (firstLine == null) { firstLine = 0; } | |
| 6035 | ||
| 6036 | BranchChunk.call(this, [new LeafChunk([new Line("", null)])]); | |
| 6037 | this.first = firstLine; | |
| 6038 | this.scrollTop = this.scrollLeft = 0; | |
| 6039 | this.cantEdit = false; | |
| 6040 | this.cleanGeneration = 1; | |
| 6041 | this.modeFrontier = this.highlightFrontier = firstLine; | |
| 6042 | var start = Pos(firstLine, 0); | |
| 6043 | this.sel = simpleSelection(start); | |
| 6044 | this.history = new History(null); | |
| 6045 | this.id = ++nextDocId; | |
| 6046 | this.modeOption = mode; | |
| 6047 | this.lineSep = lineSep; | |
| 6048 | this.direction = (direction == "rtl") ? "rtl" : "ltr"; | |
| 6049 | this.extend = false; | |
| 6050 | ||
| 6051 | if (typeof text == "string") { text = this.splitLines(text); } | |
| 6052 | updateDoc(this, {from: start, to: start, text: text}); | |
| 6053 | setSelection(this, simpleSelection(start), sel_dontScroll); | |
| 6054 | }; | |
| 6055 | ||
| 6056 | Doc.prototype = createObj(BranchChunk.prototype, { | |
| 6057 | constructor: Doc, | |
| 6058 | // Iterate over the document. Supports two forms -- with only one | |
| 6059 | // argument, it calls that for each line in the document. With | |
| 6060 | // three, it iterates over the range given by the first two (with | |
| 6061 | // the second being non-inclusive). | |
| 6062 | iter: function(from, to, op) { | |
| 6063 | if (op) { this.iterN(from - this.first, to - from, op); } | |
| 6064 | else { this.iterN(this.first, this.first + this.size, from); } | |
| 6065 | }, | |
| 6066 | ||
| 6067 | // Non-public interface for adding and removing lines. | |
| 6068 | insert: function(at, lines) { | |
| 6069 | var height = 0; | |
| 6070 | for (var i = 0; i < lines.length; ++i) { height += lines[i].height; } | |
| 6071 | this.insertInner(at - this.first, lines, height); | |
| 6072 | }, | |
| 6073 | remove: function(at, n) { this.removeInner(at - this.first, n); }, | |
| 6074 | ||
| 6075 | // From here, the methods are part of the public interface. Most | |
| 6076 | // are also available from CodeMirror (editor) instances. | |
| 6077 | ||
| 6078 | getValue: function(lineSep) { | |
| 6079 | var lines = getLines(this, this.first, this.first + this.size); | |
| 6080 | if (lineSep === false) { return lines } | |
| 6081 | return lines.join(lineSep || this.lineSeparator()) | |
| 6082 | }, | |
| 6083 | setValue: docMethodOp(function(code) { | |
| 6084 | var top = Pos(this.first, 0), last = this.first + this.size - 1; | |
| 6085 | makeChange(this, {from: top, to: Pos(last, getLine(this, last).text.length), | |
| 6086 | text: this.splitLines(code), origin: "setValue", full: true}, true); | |
| 6087 | if (this.cm) { scrollToCoords(this.cm, 0, 0); } | |
| 6088 | setSelection(this, simpleSelection(top), sel_dontScroll); | |
| 6089 | }), | |
| 6090 | replaceRange: function(code, from, to, origin) { | |
| 6091 | from = clipPos(this, from); | |
| 6092 | to = to ? clipPos(this, to) : from; | |
| 6093 | replaceRange(this, code, from, to, origin); | |
| 6094 | }, | |
| 6095 | getRange: function(from, to, lineSep) { | |
| 6096 | var lines = getBetween(this, clipPos(this, from), clipPos(this, to)); | |
| 6097 | if (lineSep === false) { return lines } | |
| 6098 | return lines.join(lineSep || this.lineSeparator()) | |
| 6099 | }, | |
| 6100 | ||
| 6101 | getLine: function(line) {var l = this.getLineHandle(line); return l && l.text}, | |
| 6102 | ||
| 6103 | getLineHandle: function(line) {if (isLine(this, line)) { return getLine(this, line) }}, | |
| 6104 | getLineNumber: function(line) {return lineNo(line)}, | |
| 6105 | ||
| 6106 | getLineHandleVisualStart: function(line) { | |
| 6107 | if (typeof line == "number") { line = getLine(this, line); } | |
| 6108 | return visualLine(line) | |
| 6109 | }, | |
| 6110 | ||
| 6111 | lineCount: function() {return this.size}, | |
| 6112 | firstLine: function() {return this.first}, | |
| 6113 | lastLine: function() {return this.first + this.size - 1}, | |
| 6114 | ||
| 6115 | clipPos: function(pos) {return clipPos(this, pos)}, | |
| 6116 | ||
| 6117 | getCursor: function(start) { | |
| 6118 | var range$$1 = this.sel.primary(), pos; | |
| 6119 | if (start == null || start == "head") { pos = range$$1.head; } | |
| 6120 | else if (start == "anchor") { pos = range$$1.anchor; } | |
| 6121 | else if (start == "end" || start == "to" || start === false) { pos = range$$1.to(); } | |
| 6122 | else { pos = range$$1.from(); } | |
| 6123 | return pos | |
| 6124 | }, | |
| 6125 | listSelections: function() { return this.sel.ranges }, | |
| 6126 | somethingSelected: function() {return this.sel.somethingSelected()}, | |
| 6127 | ||
| 6128 | setCursor: docMethodOp(function(line, ch, options) { | |
| 6129 | setSimpleSelection(this, clipPos(this, typeof line == "number" ? Pos(line, ch || 0) : line), null, options); | |
| 6130 | }), | |
| 6131 | setSelection: docMethodOp(function(anchor, head, options) { | |
| 6132 | setSimpleSelection(this, clipPos(this, anchor), clipPos(this, head || anchor), options); | |
| 6133 | }), | |
| 6134 | extendSelection: docMethodOp(function(head, other, options) { | |
| 6135 | extendSelection(this, clipPos(this, head), other && clipPos(this, other), options); | |
| 6136 | }), | |
| 6137 | extendSelections: docMethodOp(function(heads, options) { | |
| 6138 | extendSelections(this, clipPosArray(this, heads), options); | |
| 6139 | }), | |
| 6140 | extendSelectionsBy: docMethodOp(function(f, options) { | |
| 6141 | var heads = map(this.sel.ranges, f); | |
| 6142 | extendSelections(this, clipPosArray(this, heads), options); | |
| 6143 | }), | |
| 6144 | setSelections: docMethodOp(function(ranges, primary, options) { | |
| 6145 | var this$1 = this; | |
| 6146 | ||
| 6147 | if (!ranges.length) { return } | |
| 6148 | var out = []; | |
| 6149 | for (var i = 0; i < ranges.length; i++) | |
| 6150 | { out[i] = new Range(clipPos(this$1, ranges[i].anchor), | |
| 6151 | clipPos(this$1, ranges[i].head)); } | |
| 6152 | if (primary == null) { primary = Math.min(ranges.length - 1, this.sel.primIndex); } | |
| 6153 | setSelection(this, normalizeSelection(this.cm, out, primary), options); | |
| 6154 | }), | |
| 6155 | addSelection: docMethodOp(function(anchor, head, options) { | |
| 6156 | var ranges = this.sel.ranges.slice(0); | |
| 6157 | ranges.push(new Range(clipPos(this, anchor), clipPos(this, head || anchor))); | |
| 6158 | setSelection(this, normalizeSelection(this.cm, ranges, ranges.length - 1), options); | |
| 6159 | }), | |
| 6160 | ||
| 6161 | getSelection: function(lineSep) { | |
| 6162 | var this$1 = this; | |
| 6163 | ||
| 6164 | var ranges = this.sel.ranges, lines; | |
| 6165 | for (var i = 0; i < ranges.length; i++) { | |
| 6166 | var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()); | |
| 6167 | lines = lines ? lines.concat(sel) : sel; | |
| 6168 | } | |
| 6169 | if (lineSep === false) { return lines } | |
| 6170 | else { return lines.join(lineSep || this.lineSeparator()) } | |
| 6171 | }, | |
| 6172 | getSelections: function(lineSep) { | |
| 6173 | var this$1 = this; | |
| 6174 | ||
| 6175 | var parts = [], ranges = this.sel.ranges; | |
| 6176 | for (var i = 0; i < ranges.length; i++) { | |
| 6177 | var sel = getBetween(this$1, ranges[i].from(), ranges[i].to()); | |
| 6178 | if (lineSep !== false) { sel = sel.join(lineSep || this$1.lineSeparator()); } | |
| 6179 | parts[i] = sel; | |
| 6180 | } | |
| 6181 | return parts | |
| 6182 | }, | |
| 6183 | replaceSelection: function(code, collapse, origin) { | |
| 6184 | var dup = []; | |
| 6185 | for (var i = 0; i < this.sel.ranges.length; i++) | |
| 6186 | { dup[i] = code; } | |
| 6187 | this.replaceSelections(dup, collapse, origin || "+input"); | |
| 6188 | }, | |
| 6189 | replaceSelections: docMethodOp(function(code, collapse, origin) { | |
| 6190 | var this$1 = this; | |
| 6191 | ||
| 6192 | var changes = [], sel = this.sel; | |
| 6193 | for (var i = 0; i < sel.ranges.length; i++) { | |
| 6194 | var range$$1 = sel.ranges[i]; | |
| 6195 | changes[i] = {from: range$$1.from(), to: range$$1.to(), text: this$1.splitLines(code[i]), origin: origin}; | |
| 6196 | } | |
| 6197 | var newSel = collapse && collapse != "end" && computeReplacedSel(this, changes, collapse); | |
| 6198 | for (var i$1 = changes.length - 1; i$1 >= 0; i$1--) | |
| 6199 | { makeChange(this$1, changes[i$1]); } | |
| 6200 | if (newSel) { setSelectionReplaceHistory(this, newSel); } | |
| 6201 | else if (this.cm) { ensureCursorVisible(this.cm); } | |
| 6202 | }), | |
| 6203 | undo: docMethodOp(function() {makeChangeFromHistory(this, "undo");}), | |
| 6204 | redo: docMethodOp(function() {makeChangeFromHistory(this, "redo");}), | |
| 6205 | undoSelection: docMethodOp(function() {makeChangeFromHistory(this, "undo", true);}), | |
| 6206 | redoSelection: docMethodOp(function() {makeChangeFromHistory(this, "redo", true);}), | |
| 6207 | ||
| 6208 | setExtending: function(val) {this.extend = val;}, | |
| 6209 | getExtending: function() {return this.extend}, | |
| 6210 | ||
| 6211 | historySize: function() { | |
| 6212 | var hist = this.history, done = 0, undone = 0; | |
| 6213 | for (var i = 0; i < hist.done.length; i++) { if (!hist.done[i].ranges) { ++done; } } | |
| 6214 | for (var i$1 = 0; i$1 < hist.undone.length; i$1++) { if (!hist.undone[i$1].ranges) { ++undone; } } | |
| 6215 | return {undo: done, redo: undone} | |
| 6216 | }, | |
| 6217 | clearHistory: function() {this.history = new History(this.history.maxGeneration);}, | |
| 6218 | ||
| 6219 | markClean: function() { | |
| 6220 | this.cleanGeneration = this.changeGeneration(true); | |
| 6221 | }, | |
| 6222 | changeGeneration: function(forceSplit) { | |
| 6223 | if (forceSplit) | |
| 6224 | { this.history.lastOp = this.history.lastSelOp = this.history.lastOrigin = null; } | |
| 6225 | return this.history.generation | |
| 6226 | }, | |
| 6227 | isClean: function (gen) { | |
| 6228 | return this.history.generation == (gen || this.cleanGeneration) | |
| 6229 | }, | |
| 6230 | ||
| 6231 | getHistory: function() { | |
| 6232 | return {done: copyHistoryArray(this.history.done), | |
| 6233 | undone: copyHistoryArray(this.history.undone)} | |
| 6234 | }, | |
| 6235 | setHistory: function(histData) { | |
| 6236 | var hist = this.history = new History(this.history.maxGeneration); | |
| 6237 | hist.done = copyHistoryArray(histData.done.slice(0), null, true); | |
| 6238 | hist.undone = copyHistoryArray(histData.undone.slice(0), null, true); | |
| 6239 | }, | |
| 6240 | ||
| 6241 | setGutterMarker: docMethodOp(function(line, gutterID, value) { | |
| 6242 | return changeLine(this, line, "gutter", function (line) { | |
| 6243 | var markers = line.gutterMarkers || (line.gutterMarkers = {}); | |
| 6244 | markers[gutterID] = value; | |
| 6245 | if (!value && isEmpty(markers)) { line.gutterMarkers = null; } | |
| 6246 | return true | |
| 6247 | }) | |
| 6248 | }), | |
| 6249 | ||
| 6250 | clearGutter: docMethodOp(function(gutterID) { | |
| 6251 | var this$1 = this; | |
| 6252 | ||
| 6253 | this.iter(function (line) { | |
| 6254 | if (line.gutterMarkers && line.gutterMarkers[gutterID]) { | |
| 6255 | changeLine(this$1, line, "gutter", function () { | |
| 6256 | line.gutterMarkers[gutterID] = null; | |
| 6257 | if (isEmpty(line.gutterMarkers)) { line.gutterMarkers = null; } | |
| 6258 | return true | |
| 6259 | }); | |
| 6260 | } | |
| 6261 | }); | |
| 6262 | }), | |
| 6263 | ||
| 6264 | lineInfo: function(line) { | |
| 6265 | var n; | |
| 6266 | if (typeof line == "number") { | |
| 6267 | if (!isLine(this, line)) { return null } | |
| 6268 | n = line; | |
| 6269 | line = getLine(this, line); | |
| 6270 | if (!line) { return null } | |
| 6271 | } else { | |
| 6272 | n = lineNo(line); | |
| 6273 | if (n == null) { return null } | |
| 6274 | } | |
| 6275 | return {line: n, handle: line, text: line.text, gutterMarkers: line.gutterMarkers, | |
| 6276 | textClass: line.textClass, bgClass: line.bgClass, wrapClass: line.wrapClass, | |
| 6277 | widgets: line.widgets} | |
| 6278 | }, | |
| 6279 | ||
| 6280 | addLineClass: docMethodOp(function(handle, where, cls) { | |
| 6281 | return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { | |
| 6282 | var prop = where == "text" ? "textClass" | |
| 6283 | : where == "background" ? "bgClass" | |
| 6284 | : where == "gutter" ? "gutterClass" : "wrapClass"; | |
| 6285 | if (!line[prop]) { line[prop] = cls; } | |
| 6286 | else if (classTest(cls).test(line[prop])) { return false } | |
| 6287 | else { line[prop] += " " + cls; } | |
| 6288 | return true | |
| 6289 | }) | |
| 6290 | }), | |
| 6291 | removeLineClass: docMethodOp(function(handle, where, cls) { | |
| 6292 | return changeLine(this, handle, where == "gutter" ? "gutter" : "class", function (line) { | |
| 6293 | var prop = where == "text" ? "textClass" | |
| 6294 | : where == "background" ? "bgClass" | |
| 6295 | : where == "gutter" ? "gutterClass" : "wrapClass"; | |
| 6296 | var cur = line[prop]; | |
| 6297 | if (!cur) { return false } | |
| 6298 | else if (cls == null) { line[prop] = null; } | |
| 6299 | else { | |
| 6300 | var found = cur.match(classTest(cls)); | |
| 6301 | if (!found) { return false } | |
| 6302 | var end = found.index + found[0].length; | |
| 6303 | line[prop] = cur.slice(0, found.index) + (!found.index || end == cur.length ? "" : " ") + cur.slice(end) || null; | |
| 6304 | } | |
| 6305 | return true | |
| 6306 | }) | |
| 6307 | }), | |
| 6308 | ||
| 6309 | addLineWidget: docMethodOp(function(handle, node, options) { | |
| 6310 | return addLineWidget(this, handle, node, options) | |
| 6311 | }), | |
| 6312 | removeLineWidget: function(widget) { widget.clear(); }, | |
| 6313 | ||
| 6314 | markText: function(from, to, options) { | |
| 6315 | return markText(this, clipPos(this, from), clipPos(this, to), options, options && options.type || "range") | |
| 6316 | }, | |
| 6317 | setBookmark: function(pos, options) { | |
| 6318 | var realOpts = {replacedWith: options && (options.nodeType == null ? options.widget : options), | |
| 6319 | insertLeft: options && options.insertLeft, | |
| 6320 | clearWhenEmpty: false, shared: options && options.shared, | |
| 6321 | handleMouseEvents: options && options.handleMouseEvents}; | |
| 6322 | pos = clipPos(this, pos); | |
| 6323 | return markText(this, pos, pos, realOpts, "bookmark") | |
| 6324 | }, | |
| 6325 | findMarksAt: function(pos) { | |
| 6326 | pos = clipPos(this, pos); | |
| 6327 | var markers = [], spans = getLine(this, pos.line).markedSpans; | |
| 6328 | if (spans) { for (var i = 0; i < spans.length; ++i) { | |
| 6329 | var span = spans[i]; | |
| 6330 | if ((span.from == null || span.from <= pos.ch) && | |
| 6331 | (span.to == null || span.to >= pos.ch)) | |
| 6332 | { markers.push(span.marker.parent || span.marker); } | |
| 6333 | } } | |
| 6334 | return markers | |
| 6335 | }, | |
| 6336 | findMarks: function(from, to, filter) { | |
| 6337 | from = clipPos(this, from); to = clipPos(this, to); | |
| 6338 | var found = [], lineNo$$1 = from.line; | |
| 6339 | this.iter(from.line, to.line + 1, function (line) { | |
| 6340 | var spans = line.markedSpans; | |
| 6341 | if (spans) { for (var i = 0; i < spans.length; i++) { | |
| 6342 | var span = spans[i]; | |
| 6343 | if (!(span.to != null && lineNo$$1 == from.line && from.ch >= span.to || | |
| 6344 | span.from == null && lineNo$$1 != from.line || | |
| 6345 | span.from != null && lineNo$$1 == to.line && span.from >= to.ch) && | |
| 6346 | (!filter || filter(span.marker))) | |
| 6347 | { found.push(span.marker.parent || span.marker); } | |
| 6348 | } } | |
| 6349 | ++lineNo$$1; | |
| 6350 | }); | |
| 6351 | return found | |
| 6352 | }, | |
| 6353 | getAllMarks: function() { | |
| 6354 | var markers = []; | |
| 6355 | this.iter(function (line) { | |
| 6356 | var sps = line.markedSpans; | |
| 6357 | if (sps) { for (var i = 0; i < sps.length; ++i) | |
| 6358 | { if (sps[i].from != null) { markers.push(sps[i].marker); } } } | |
| 6359 | }); | |
| 6360 | return markers | |
| 6361 | }, | |
| 6362 | ||
| 6363 | posFromIndex: function(off) { | |
| 6364 | var ch, lineNo$$1 = this.first, sepSize = this.lineSeparator().length; | |
| 6365 | this.iter(function (line) { | |
| 6366 | var sz = line.text.length + sepSize; | |
| 6367 | if (sz > off) { ch = off; return true } | |
| 6368 | off -= sz; | |
| 6369 | ++lineNo$$1; | |
| 6370 | }); | |
| 6371 | return clipPos(this, Pos(lineNo$$1, ch)) | |
| 6372 | }, | |
| 6373 | indexFromPos: function (coords) { | |
| 6374 | coords = clipPos(this, coords); | |
| 6375 | var index = coords.ch; | |
| 6376 | if (coords.line < this.first || coords.ch < 0) { return 0 } | |
| 6377 | var sepSize = this.lineSeparator().length; | |
| 6378 | this.iter(this.first, coords.line, function (line) { // iter aborts when callback returns a truthy value | |
| 6379 | index += line.text.length + sepSize; | |
| 6380 | }); | |
| 6381 | return index | |
| 6382 | }, | |
| 6383 | ||
| 6384 | copy: function(copyHistory) { | |
| 6385 | var doc = new Doc(getLines(this, this.first, this.first + this.size), | |
| 6386 | this.modeOption, this.first, this.lineSep, this.direction); | |
| 6387 | doc.scrollTop = this.scrollTop; doc.scrollLeft = this.scrollLeft; | |
| 6388 | doc.sel = this.sel; | |
| 6389 | doc.extend = false; | |
| 6390 | if (copyHistory) { | |
| 6391 | doc.history.undoDepth = this.history.undoDepth; | |
| 6392 | doc.setHistory(this.getHistory()); | |
| 6393 | } | |
| 6394 | return doc | |
| 6395 | }, | |
| 6396 | ||
| 6397 | linkedDoc: function(options) { | |
| 6398 | if (!options) { options = {}; } | |
| 6399 | var from = this.first, to = this.first + this.size; | |
| 6400 | if (options.from != null && options.from > from) { from = options.from; } | |
| 6401 | if (options.to != null && options.to < to) { to = options.to; } | |
| 6402 | var copy = new Doc(getLines(this, from, to), options.mode || this.modeOption, from, this.lineSep, this.direction); | |
| 6403 | if (options.sharedHist) { copy.history = this.history | |
| 6404 | ; }(this.linked || (this.linked = [])).push({doc: copy, sharedHist: options.sharedHist}); | |
| 6405 | copy.linked = [{doc: this, isParent: true, sharedHist: options.sharedHist}]; | |
| 6406 | copySharedMarkers(copy, findSharedMarkers(this)); | |
| 6407 | return copy | |
| 6408 | }, | |
| 6409 | unlinkDoc: function(other) { | |
| 6410 | var this$1 = this; | |
| 6411 | ||
| 6412 | if (other instanceof CodeMirror) { other = other.doc; } | |
| 6413 | if (this.linked) { for (var i = 0; i < this.linked.length; ++i) { | |
| 6414 | var link = this$1.linked[i]; | |
| 6415 | if (link.doc != other) { continue } | |
| 6416 | this$1.linked.splice(i, 1); | |
| 6417 | other.unlinkDoc(this$1); | |
| 6418 | detachSharedMarkers(findSharedMarkers(this$1)); | |
| 6419 | break | |
| 6420 | } } | |
| 6421 | // If the histories were shared, split them again | |
| 6422 | if (other.history == this.history) { | |
| 6423 | var splitIds = [other.id]; | |
| 6424 | linkedDocs(other, function (doc) { return splitIds.push(doc.id); }, true); | |
| 6425 | other.history = new History(null); | |
| 6426 | other.history.done = copyHistoryArray(this.history.done, splitIds); | |
| 6427 | other.history.undone = copyHistoryArray(this.history.undone, splitIds); | |
| 6428 | } | |
| 6429 | }, | |
| 6430 | iterLinkedDocs: function(f) {linkedDocs(this, f);}, | |
| 6431 | ||
| 6432 | getMode: function() {return this.mode}, | |
| 6433 | getEditor: function() {return this.cm}, | |
| 6434 | ||
| 6435 | splitLines: function(str) { | |
| 6436 | if (this.lineSep) { return str.split(this.lineSep) } | |
| 6437 | return splitLinesAuto(str) | |
| 6438 | }, | |
| 6439 | lineSeparator: function() { return this.lineSep || "\n" }, | |
| 6440 | ||
| 6441 | setDirection: docMethodOp(function (dir) { | |
| 6442 | if (dir != "rtl") { dir = "ltr"; } | |
| 6443 | if (dir == this.direction) { return } | |
| 6444 | this.direction = dir; | |
| 6445 | this.iter(function (line) { return line.order = null; }); | |
| 6446 | if (this.cm) { directionChanged(this.cm); } | |
| 6447 | }) | |
| 6448 | }); | |
| 6449 | ||
| 6450 | // Public alias. | |
| 6451 | Doc.prototype.eachLine = Doc.prototype.iter; | |
| 6452 | ||
| 6453 | // Kludge to work around strange IE behavior where it'll sometimes | |
| 6454 | // re-fire a series of drag-related events right after the drop (#1551) | |
| 6455 | var lastDrop = 0; | |
| 6456 | ||
| 6457 | function onDrop(e) { | |
| 6458 | var cm = this; | |
| 6459 | clearDragCursor(cm); | |
| 6460 | if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) | |
| 6461 | { return } | |
| 6462 | e_preventDefault(e); | |
| 6463 | if (ie) { lastDrop = +new Date; } | |
| 6464 | var pos = posFromMouse(cm, e, true), files = e.dataTransfer.files; | |
| 6465 | if (!pos || cm.isReadOnly()) { return } | |
| 6466 | // Might be a file drop, in which case we simply extract the text | |
| 6467 | // and insert it. | |
| 6468 | if (files && files.length && window.FileReader && window.File) { | |
| 6469 | var n = files.length, text = Array(n), read = 0; | |
| 6470 | var loadFile = function (file, i) { | |
| 6471 | if (cm.options.allowDropFileTypes && | |
| 6472 | indexOf(cm.options.allowDropFileTypes, file.type) == -1) | |
| 6473 | { return } | |
| 6474 | ||
| 6475 | var reader = new FileReader; | |
| 6476 | reader.onload = operation(cm, function () { | |
| 6477 | var content = reader.result; | |
| 6478 | if (/[\x00-\x08\x0e-\x1f]{2}/.test(content)) { content = ""; } | |
| 6479 | text[i] = content; | |
| 6480 | if (++read == n) { | |
| 6481 | pos = clipPos(cm.doc, pos); | |
| 6482 | var change = {from: pos, to: pos, | |
| 6483 | text: cm.doc.splitLines(text.join(cm.doc.lineSeparator())), | |
| 6484 | origin: "paste"}; | |
| 6485 | makeChange(cm.doc, change); | |
| 6486 | setSelectionReplaceHistory(cm.doc, simpleSelection(pos, changeEnd(change))); | |
| 6487 | } | |
| 6488 | }); | |
| 6489 | reader.readAsText(file); | |
| 6490 | }; | |
| 6491 | for (var i = 0; i < n; ++i) { loadFile(files[i], i); } | |
| 6492 | } else { // Normal drop | |
| 6493 | // Don't do a replace if the drop happened inside of the selected text. | |
| 6494 | if (cm.state.draggingText && cm.doc.sel.contains(pos) > -1) { | |
| 6495 | cm.state.draggingText(e); | |
| 6496 | // Ensure the editor is re-focused | |
| 6497 | setTimeout(function () { return cm.display.input.focus(); }, 20); | |
| 6498 | return | |
| 6499 | } | |
| 6500 | try { | |
| 6501 | var text$1 = e.dataTransfer.getData("Text"); | |
| 6502 | if (text$1) { | |
| 6503 | var selected; | |
| 6504 | if (cm.state.draggingText && !cm.state.draggingText.copy) | |
| 6505 | { selected = cm.listSelections(); } | |
| 6506 | setSelectionNoUndo(cm.doc, simpleSelection(pos, pos)); | |
| 6507 | if (selected) { for (var i$1 = 0; i$1 < selected.length; ++i$1) | |
| 6508 | { replaceRange(cm.doc, "", selected[i$1].anchor, selected[i$1].head, "drag"); } } | |
| 6509 | cm.replaceSelection(text$1, "around", "paste"); | |
| 6510 | cm.display.input.focus(); | |
| 6511 | } | |
| 6512 | } | |
| 6513 | catch(e){} | |
| 6514 | } | |
| 6515 | } | |
| 6516 | ||
| 6517 | function onDragStart(cm, e) { | |
| 6518 | if (ie && (!cm.state.draggingText || +new Date - lastDrop < 100)) { e_stop(e); return } | |
| 6519 | if (signalDOMEvent(cm, e) || eventInWidget(cm.display, e)) { return } | |
| 6520 | ||
| 6521 | e.dataTransfer.setData("Text", cm.getSelection()); | |
| 6522 | e.dataTransfer.effectAllowed = "copyMove"; | |
| 6523 | ||
| 6524 | // Use dummy image instead of default browsers image. | |
| 6525 | // Recent Safari (~6.0.2) have a tendency to segfault when this happens, so we don't do it there. | |
| 6526 | if (e.dataTransfer.setDragImage && !safari) { | |
| 6527 | var img = elt("img", null, null, "position: fixed; left: 0; top: 0;"); | |
| 6528 | img.src = "data:image/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw=="; | |
| 6529 | if (presto) { | |
| 6530 | img.width = img.height = 1; | |
| 6531 | cm.display.wrapper.appendChild(img); | |
| 6532 | // Force a relayout, or Opera won't use our image for some obscure reason | |
| 6533 | img._top = img.offsetTop; | |
| 6534 | } | |
| 6535 | e.dataTransfer.setDragImage(img, 0, 0); | |
| 6536 | if (presto) { img.parentNode.removeChild(img); } | |
| 6537 | } | |
| 6538 | } | |
| 6539 | ||
| 6540 | function onDragOver(cm, e) { | |
| 6541 | var pos = posFromMouse(cm, e); | |
| 6542 | if (!pos) { return } | |
| 6543 | var frag = document.createDocumentFragment(); | |
| 6544 | drawSelectionCursor(cm, pos, frag); | |
| 6545 | if (!cm.display.dragCursor) { | |
| 6546 | cm.display.dragCursor = elt("div", null, "CodeMirror-cursors CodeMirror-dragcursors"); | |
| 6547 | cm.display.lineSpace.insertBefore(cm.display.dragCursor, cm.display.cursorDiv); | |
| 6548 | } | |
| 6549 | removeChildrenAndAdd(cm.display.dragCursor, frag); | |
| 6550 | } | |
| 6551 | ||
| 6552 | function clearDragCursor(cm) { | |
| 6553 | if (cm.display.dragCursor) { | |
| 6554 | cm.display.lineSpace.removeChild(cm.display.dragCursor); | |
| 6555 | cm.display.dragCursor = null; | |
| 6556 | } | |
| 6557 | } | |
| 6558 | ||
| 6559 | // These must be handled carefully, because naively registering a | |
| 6560 | // handler for each editor will cause the editors to never be | |
| 6561 | // garbage collected. | |
| 6562 | ||
| 6563 | function forEachCodeMirror(f) { | |
| 6564 | if (!document.getElementsByClassName) { return } | |
| 6565 | var byClass = document.getElementsByClassName("CodeMirror"); | |
| 6566 | for (var i = 0; i < byClass.length; i++) { | |
| 6567 | var cm = byClass[i].CodeMirror; | |
| 6568 | if (cm) { f(cm); } | |
| 6569 | } | |
| 6570 | } | |
| 6571 | ||
| 6572 | var globalsRegistered = false; | |
| 6573 | function ensureGlobalHandlers() { | |
| 6574 | if (globalsRegistered) { return } | |
| 6575 | registerGlobalHandlers(); | |
| 6576 | globalsRegistered = true; | |
| 6577 | } | |
| 6578 | function registerGlobalHandlers() { | |
| 6579 | // When the window resizes, we need to refresh active editors. | |
| 6580 | var resizeTimer; | |
| 6581 | on(window, "resize", function () { | |
| 6582 | if (resizeTimer == null) { resizeTimer = setTimeout(function () { | |
| 6583 | resizeTimer = null; | |
| 6584 | forEachCodeMirror(onResize); | |
| 6585 | }, 100); } | |
| 6586 | }); | |
| 6587 | // When the window loses focus, we want to show the editor as blurred | |
| 6588 | on(window, "blur", function () { return forEachCodeMirror(onBlur); }); | |
| 6589 | } | |
| 6590 | // Called when the window resizes | |
| 6591 | function onResize(cm) { | |
| 6592 | var d = cm.display; | |
| 6593 | // Might be a text scaling operation, clear size caches. | |
| 6594 | d.cachedCharWidth = d.cachedTextHeight = d.cachedPaddingH = null; | |
| 6595 | d.scrollbarsClipped = false; | |
| 6596 | cm.setSize(); | |
| 6597 | } | |
| 6598 | ||
| 6599 | var keyNames = { | |
| 6600 | 3: "Pause", 8: "Backspace", 9: "Tab", 13: "Enter", 16: "Shift", 17: "Ctrl", 18: "Alt", | |
| 6601 | 19: "Pause", 20: "CapsLock", 27: "Esc", 32: "Space", 33: "PageUp", 34: "PageDown", 35: "End", | |
| 6602 | 36: "Home", 37: "Left", 38: "Up", 39: "Right", 40: "Down", 44: "PrintScrn", 45: "Insert", | |
| 6603 | 46: "Delete", 59: ";", 61: "=", 91: "Mod", 92: "Mod", 93: "Mod", | |
| 6604 | 106: "*", 107: "=", 109: "-", 110: ".", 111: "/", 127: "Delete", 145: "ScrollLock", | |
| 6605 | 173: "-", 186: ";", 187: "=", 188: ",", 189: "-", 190: ".", 191: "/", 192: "`", 219: "[", 220: "\\", | |
| 6606 | 221: "]", 222: "'", 63232: "Up", 63233: "Down", 63234: "Left", 63235: "Right", 63272: "Delete", | |
| 6607 | 63273: "Home", 63275: "End", 63276: "PageUp", 63277: "PageDown", 63302: "Insert" | |
| 6608 | }; | |
| 6609 | ||
| 6610 | // Number keys | |
| 6611 | for (var i = 0; i < 10; i++) { keyNames[i + 48] = keyNames[i + 96] = String(i); } | |
| 6612 | // Alphabetic keys | |
| 6613 | for (var i$1 = 65; i$1 <= 90; i$1++) { keyNames[i$1] = String.fromCharCode(i$1); } | |
| 6614 | // Function keys | |
| 6615 | for (var i$2 = 1; i$2 <= 12; i$2++) { keyNames[i$2 + 111] = keyNames[i$2 + 63235] = "F" + i$2; } | |
| 6616 | ||
| 6617 | var keyMap = {}; | |
| 6618 | ||
| 6619 | keyMap.basic = { | |
| 6620 | "Left": "goCharLeft", "Right": "goCharRight", "Up": "goLineUp", "Down": "goLineDown", | |
| 6621 | "End": "goLineEnd", "Home": "goLineStartSmart", "PageUp": "goPageUp", "PageDown": "goPageDown", | |
| 6622 | "Delete": "delCharAfter", "Backspace": "delCharBefore", "Shift-Backspace": "delCharBefore", | |
| 6623 | "Tab": "defaultTab", "Shift-Tab": "indentAuto", | |
| 6624 | "Enter": "newlineAndIndent", "Insert": "toggleOverwrite", | |
| 6625 | "Esc": "singleSelection" | |
| 6626 | }; | |
| 6627 | // Note that the save and find-related commands aren't defined by | |
| 6628 | // default. User code or addons can define them. Unknown commands | |
| 6629 | // are simply ignored. | |
| 6630 | keyMap.pcDefault = { | |
| 6631 | "Ctrl-A": "selectAll", "Ctrl-D": "deleteLine", "Ctrl-Z": "undo", "Shift-Ctrl-Z": "redo", "Ctrl-Y": "redo", | |
| 6632 | "Ctrl-Home": "goDocStart", "Ctrl-End": "goDocEnd", "Ctrl-Up": "goLineUp", "Ctrl-Down": "goLineDown", | |
| 6633 | "Ctrl-Left": "goGroupLeft", "Ctrl-Right": "goGroupRight", "Alt-Left": "goLineStart", "Alt-Right": "goLineEnd", | |
| 6634 | "Ctrl-Backspace": "delGroupBefore", "Ctrl-Delete": "delGroupAfter", "Ctrl-S": "save", "Ctrl-F": "find", | |
| 6635 | "Ctrl-G": "findNext", "Shift-Ctrl-G": "findPrev", "Shift-Ctrl-F": "replace", "Shift-Ctrl-R": "replaceAll", | |
| 6636 | "Ctrl-[": "indentLess", "Ctrl-]": "indentMore", | |
| 6637 | "Ctrl-U": "undoSelection", "Shift-Ctrl-U": "redoSelection", "Alt-U": "redoSelection", | |
| 6638 | "fallthrough": "basic" | |
| 6639 | }; | |
| 6640 | // Very basic readline/emacs-style bindings, which are standard on Mac. | |
| 6641 | keyMap.emacsy = { | |
| 6642 | "Ctrl-F": "goCharRight", "Ctrl-B": "goCharLeft", "Ctrl-P": "goLineUp", "Ctrl-N": "goLineDown", | |
| 6643 | "Alt-F": "goWordRight", "Alt-B": "goWordLeft", "Ctrl-A": "goLineStart", "Ctrl-E": "goLineEnd", | |
| 6644 | "Ctrl-V": "goPageDown", "Shift-Ctrl-V": "goPageUp", "Ctrl-D": "delCharAfter", "Ctrl-H": "delCharBefore", | |
| 6645 | "Alt-D": "delWordAfter", "Alt-Backspace": "delWordBefore", "Ctrl-K": "killLine", "Ctrl-T": "transposeChars", | |
| 6646 | "Ctrl-O": "openLine" | |
| 6647 | }; | |
| 6648 | keyMap.macDefault = { | |
| 6649 | "Cmd-A": "selectAll", "Cmd-D": "deleteLine", "Cmd-Z": "undo", "Shift-Cmd-Z": "redo", "Cmd-Y": "redo", | |
| 6650 | "Cmd-Home": "goDocStart", "Cmd-Up": "goDocStart", "Cmd-End": "goDocEnd", "Cmd-Down": "goDocEnd", "Alt-Left": "goGroupLeft", | |
| 6651 | "Alt-Right": "goGroupRight", "Cmd-Left": "goLineLeft", "Cmd-Right": "goLineRight", "Alt-Backspace": "delGroupBefore", | |
| 6652 | "Ctrl-Alt-Backspace": "delGroupAfter", "Alt-Delete": "delGroupAfter", "Cmd-S": "save", "Cmd-F": "find", | |
| 6653 | "Cmd-G": "findNext", "Shift-Cmd-G": "findPrev", "Cmd-Alt-F": "replace", "Shift-Cmd-Alt-F": "replaceAll", | |
| 6654 | "Cmd-[": "indentLess", "Cmd-]": "indentMore", "Cmd-Backspace": "delWrappedLineLeft", "Cmd-Delete": "delWrappedLineRight", | |
| 6655 | "Cmd-U": "undoSelection", "Shift-Cmd-U": "redoSelection", "Ctrl-Up": "goDocStart", "Ctrl-Down": "goDocEnd", | |
| 6656 | "fallthrough": ["basic", "emacsy"] | |
| 6657 | }; | |
| 6658 | keyMap["default"] = mac ? keyMap.macDefault : keyMap.pcDefault; | |
| 6659 | ||
| 6660 | // KEYMAP DISPATCH | |
| 6661 | ||
| 6662 | function normalizeKeyName(name) { | |
| 6663 | var parts = name.split(/-(?!$)/); | |
| 6664 | name = parts[parts.length - 1]; | |
| 6665 | var alt, ctrl, shift, cmd; | |
| 6666 | for (var i = 0; i < parts.length - 1; i++) { | |
| 6667 | var mod = parts[i]; | |
| 6668 | if (/^(cmd|meta|m)$/i.test(mod)) { cmd = true; } | |
| 6669 | else if (/^a(lt)?$/i.test(mod)) { alt = true; } | |
| 6670 | else if (/^(c|ctrl|control)$/i.test(mod)) { ctrl = true; } | |
| 6671 | else if (/^s(hift)?$/i.test(mod)) { shift = true; } | |
| 6672 | else { throw new Error("Unrecognized modifier name: " + mod) } | |
| 6673 | } | |
| 6674 | if (alt) { name = "Alt-" + name; } | |
| 6675 | if (ctrl) { name = "Ctrl-" + name; } | |
| 6676 | if (cmd) { name = "Cmd-" + name; } | |
| 6677 | if (shift) { name = "Shift-" + name; } | |
| 6678 | return name | |
| 6679 | } | |
| 6680 | ||
| 6681 | // This is a kludge to keep keymaps mostly working as raw objects | |
| 6682 | // (backwards compatibility) while at the same time support features | |
| 6683 | // like normalization and multi-stroke key bindings. It compiles a | |
| 6684 | // new normalized keymap, and then updates the old object to reflect | |
| 6685 | // this. | |
| 6686 | function normalizeKeyMap(keymap) { | |
| 6687 | var copy = {}; | |
| 6688 | for (var keyname in keymap) { if (keymap.hasOwnProperty(keyname)) { | |
| 6689 | var value = keymap[keyname]; | |
| 6690 | if (/^(name|fallthrough|(de|at)tach)$/.test(keyname)) { continue } | |
| 6691 | if (value == "...") { delete keymap[keyname]; continue } | |
| 6692 | ||
| 6693 | var keys = map(keyname.split(" "), normalizeKeyName); | |
| 6694 | for (var i = 0; i < keys.length; i++) { | |
| 6695 | var val = (void 0), name = (void 0); | |
| 6696 | if (i == keys.length - 1) { | |
| 6697 | name = keys.join(" "); | |
| 6698 | val = value; | |
| 6699 | } else { | |
| 6700 | name = keys.slice(0, i + 1).join(" "); | |
| 6701 | val = "..."; | |
| 6702 | } | |
| 6703 | var prev = copy[name]; | |
| 6704 | if (!prev) { copy[name] = val; } | |
| 6705 | else if (prev != val) { throw new Error("Inconsistent bindings for " + name) } | |
| 6706 | } | |
| 6707 | delete keymap[keyname]; | |
| 6708 | } } | |
| 6709 | for (var prop in copy) { keymap[prop] = copy[prop]; } | |
| 6710 | return keymap | |
| 6711 | } | |
| 6712 | ||
| 6713 | function lookupKey(key, map$$1, handle, context) { | |
| 6714 | map$$1 = getKeyMap(map$$1); | |
| 6715 | var found = map$$1.call ? map$$1.call(key, context) : map$$1[key]; | |
| 6716 | if (found === false) { return "nothing" } | |
| 6717 | if (found === "...") { return "multi" } | |
| 6718 | if (found != null && handle(found)) { return "handled" } | |
| 6719 | ||
| 6720 | if (map$$1.fallthrough) { | |
| 6721 | if (Object.prototype.toString.call(map$$1.fallthrough) != "[object Array]") | |
| 6722 | { return lookupKey(key, map$$1.fallthrough, handle, context) } | |
| 6723 | for (var i = 0; i < map$$1.fallthrough.length; i++) { | |
| 6724 | var result = lookupKey(key, map$$1.fallthrough[i], handle, context); | |
| 6725 | if (result) { return result } | |
| 6726 | } | |
| 6727 | } | |
| 6728 | } | |
| 6729 | ||
| 6730 | // Modifier key presses don't count as 'real' key presses for the | |
| 6731 | // purpose of keymap fallthrough. | |
| 6732 | function isModifierKey(value) { | |
| 6733 | var name = typeof value == "string" ? value : keyNames[value.keyCode]; | |
| 6734 | return name == "Ctrl" || name == "Alt" || name == "Shift" || name == "Mod" | |
| 6735 | } | |
| 6736 | ||
| 6737 | function addModifierNames(name, event, noShift) { | |
| 6738 | var base = name; | |
| 6739 | if (event.altKey && base != "Alt") { name = "Alt-" + name; } | |
| 6740 | if ((flipCtrlCmd ? event.metaKey : event.ctrlKey) && base != "Ctrl") { name = "Ctrl-" + name; } | |
| 6741 | if ((flipCtrlCmd ? event.ctrlKey : event.metaKey) && base != "Cmd") { name = "Cmd-" + name; } | |
| 6742 | if (!noShift && event.shiftKey && base != "Shift") { name = "Shift-" + name; } | |
| 6743 | return name | |
| 6744 | } | |
| 6745 | ||
| 6746 | // Look up the name of a key as indicated by an event object. | |
| 6747 | function keyName(event, noShift) { | |
| 6748 | if (presto && event.keyCode == 34 && event["char"]) { return false } | |
| 6749 | var name = keyNames[event.keyCode]; | |
| 6750 | if (name == null || event.altGraphKey) { return false } | |
| 6751 | // Ctrl-ScrollLock has keyCode 3, same as Ctrl-Pause, | |
| 6752 | // so we'll use event.code when available (Chrome 48+, FF 38+, Safari 10.1+) | |
| 6753 | if (event.keyCode == 3 && event.code) { name = event.code; } | |
| 6754 | return addModifierNames(name, event, noShift) | |
| 6755 | } | |
| 6756 | ||
| 6757 | function getKeyMap(val) { | |
| 6758 | return typeof val == "string" ? keyMap[val] : val | |
| 6759 | } | |
| 6760 | ||
| 6761 | // Helper for deleting text near the selection(s), used to implement | |
| 6762 | // backspace, delete, and similar functionality. | |
| 6763 | function deleteNearSelection(cm, compute) { | |
| 6764 | var ranges = cm.doc.sel.ranges, kill = []; | |
| 6765 | // Build up a set of ranges to kill first, merging overlapping | |
| 6766 | // ranges. | |
| 6767 | for (var i = 0; i < ranges.length; i++) { | |
| 6768 | var toKill = compute(ranges[i]); | |
| 6769 | while (kill.length && cmp(toKill.from, lst(kill).to) <= 0) { | |
| 6770 | var replaced = kill.pop(); | |
| 6771 | if (cmp(replaced.from, toKill.from) < 0) { | |
| 6772 | toKill.from = replaced.from; | |
| 6773 | break | |
| 6774 | } | |
| 6775 | } | |
| 6776 | kill.push(toKill); | |
| 6777 | } | |
| 6778 | // Next, remove those actual ranges. | |
| 6779 | runInOp(cm, function () { | |
| 6780 | for (var i = kill.length - 1; i >= 0; i--) | |
| 6781 | { replaceRange(cm.doc, "", kill[i].from, kill[i].to, "+delete"); } | |
| 6782 | ensureCursorVisible(cm); | |
| 6783 | }); | |
| 6784 | } | |
| 6785 | ||
| 6786 | function moveCharLogically(line, ch, dir) { | |
| 6787 | var target = skipExtendingChars(line.text, ch + dir, dir); | |
| 6788 | return target < 0 || target > line.text.length ? null : target | |
| 6789 | } | |
| 6790 | ||
| 6791 | function moveLogically(line, start, dir) { | |
| 6792 | var ch = moveCharLogically(line, start.ch, dir); | |
| 6793 | return ch == null ? null : new Pos(start.line, ch, dir < 0 ? "after" : "before") | |
| 6794 | } | |
| 6795 | ||
| 6796 | function endOfLine(visually, cm, lineObj, lineNo, dir) { | |
| 6797 | if (visually) { | |
| 6798 | var order = getOrder(lineObj, cm.doc.direction); | |
| 6799 | if (order) { | |
| 6800 | var part = dir < 0 ? lst(order) : order[0]; | |
| 6801 | var moveInStorageOrder = (dir < 0) == (part.level == 1); | |
| 6802 | var sticky = moveInStorageOrder ? "after" : "before"; | |
| 6803 | var ch; | |
| 6804 | // With a wrapped rtl chunk (possibly spanning multiple bidi parts), | |
| 6805 | // it could be that the last bidi part is not on the last visual line, | |
| 6806 | // since visual lines contain content order-consecutive chunks. | |
| 6807 | // Thus, in rtl, we are looking for the first (content-order) character | |
| 6808 | // in the rtl chunk that is on the last line (that is, the same line | |
| 6809 | // as the last (content-order) character). | |
| 6810 | if (part.level > 0 || cm.doc.direction == "rtl") { | |
| 6811 | var prep = prepareMeasureForLine(cm, lineObj); | |
| 6812 | ch = dir < 0 ? lineObj.text.length - 1 : 0; | |
| 6813 | var targetTop = measureCharPrepared(cm, prep, ch).top; | |
| 6814 | ch = findFirst(function (ch) { return measureCharPrepared(cm, prep, ch).top == targetTop; }, (dir < 0) == (part.level == 1) ? part.from : part.to - 1, ch); | |
| 6815 | if (sticky == "before") { ch = moveCharLogically(lineObj, ch, 1); } | |
| 6816 | } else { ch = dir < 0 ? part.to : part.from; } | |
| 6817 | return new Pos(lineNo, ch, sticky) | |
| 6818 | } | |
| 6819 | } | |
| 6820 | return new Pos(lineNo, dir < 0 ? lineObj.text.length : 0, dir < 0 ? "before" : "after") | |
| 6821 | } | |
| 6822 | ||
| 6823 | function moveVisually(cm, line, start, dir) { | |
| 6824 | var bidi = getOrder(line, cm.doc.direction); | |
| 6825 | if (!bidi) { return moveLogically(line, start, dir) } | |
| 6826 | if (start.ch >= line.text.length) { | |
| 6827 | start.ch = line.text.length; | |
| 6828 | start.sticky = "before"; | |
| 6829 | } else if (start.ch <= 0) { | |
| 6830 | start.ch = 0; | |
| 6831 | start.sticky = "after"; | |
| 6832 | } | |
| 6833 | var partPos = getBidiPartAt(bidi, start.ch, start.sticky), part = bidi[partPos]; | |
| 6834 | if (cm.doc.direction == "ltr" && part.level % 2 == 0 && (dir > 0 ? part.to > start.ch : part.from < start.ch)) { | |
| 6835 | // Case 1: We move within an ltr part in an ltr editor. Even with wrapped lines, | |
| 6836 | // nothing interesting happens. | |
| 6837 | return moveLogically(line, start, dir) | |
| 6838 | } | |
| 6839 | ||
| 6840 | var mv = function (pos, dir) { return moveCharLogically(line, pos instanceof Pos ? pos.ch : pos, dir); }; | |
| 6841 | var prep; | |
| 6842 | var getWrappedLineExtent = function (ch) { | |
| 6843 | if (!cm.options.lineWrapping) { return {begin: 0, end: line.text.length} } | |
| 6844 | prep = prep || prepareMeasureForLine(cm, line); | |
| 6845 | return wrappedLineExtentChar(cm, line, prep, ch) | |
| 6846 | }; | |
| 6847 | var wrappedLineExtent = getWrappedLineExtent(start.sticky == "before" ? mv(start, -1) : start.ch); | |
| 6848 | ||
| 6849 | if (cm.doc.direction == "rtl" || part.level == 1) { | |
| 6850 | var moveInStorageOrder = (part.level == 1) == (dir < 0); | |
| 6851 | var ch = mv(start, moveInStorageOrder ? 1 : -1); | |
| 6852 | if (ch != null && (!moveInStorageOrder ? ch >= part.from && ch >= wrappedLineExtent.begin : ch <= part.to && ch <= wrappedLineExtent.end)) { | |
| 6853 | // Case 2: We move within an rtl part or in an rtl editor on the same visual line | |
| 6854 | var sticky = moveInStorageOrder ? "before" : "after"; | |
| 6855 | return new Pos(start.line, ch, sticky) | |
| 6856 | } | |
| 6857 | } | |
| 6858 | ||
| 6859 | // Case 3: Could not move within this bidi part in this visual line, so leave | |
| 6860 | // the current bidi part | |
| 6861 | ||
| 6862 | var searchInVisualLine = function (partPos, dir, wrappedLineExtent) { | |
| 6863 | var getRes = function (ch, moveInStorageOrder) { return moveInStorageOrder | |
| 6864 | ? new Pos(start.line, mv(ch, 1), "before") | |
| 6865 | : new Pos(start.line, ch, "after"); }; | |
| 6866 | ||
| 6867 | for (; partPos >= 0 && partPos < bidi.length; partPos += dir) { | |
| 6868 | var part = bidi[partPos]; | |
| 6869 | var moveInStorageOrder = (dir > 0) == (part.level != 1); | |
| 6870 | var ch = moveInStorageOrder ? wrappedLineExtent.begin : mv(wrappedLineExtent.end, -1); | |
| 6871 | if (part.from <= ch && ch < part.to) { return getRes(ch, moveInStorageOrder) } | |
| 6872 | ch = moveInStorageOrder ? part.from : mv(part.to, -1); | |
| 6873 | if (wrappedLineExtent.begin <= ch && ch < wrappedLineExtent.end) { return getRes(ch, moveInStorageOrder) } | |
| 6874 | } | |
| 6875 | }; | |
| 6876 | ||
| 6877 | // Case 3a: Look for other bidi parts on the same visual line | |
| 6878 | var res = searchInVisualLine(partPos + dir, dir, wrappedLineExtent); | |
| 6879 | if (res) { return res } | |
| 6880 | ||
| 6881 | // Case 3b: Look for other bidi parts on the next visual line | |
| 6882 | var nextCh = dir > 0 ? wrappedLineExtent.end : mv(wrappedLineExtent.begin, -1); | |
| 6883 | if (nextCh != null && !(dir > 0 && nextCh == line.text.length)) { | |
| 6884 | res = searchInVisualLine(dir > 0 ? 0 : bidi.length - 1, dir, getWrappedLineExtent(nextCh)); | |
| 6885 | if (res) { return res } | |
| 6886 | } | |
| 6887 | ||
| 6888 | // Case 4: Nowhere to move | |
| 6889 | return null | |
| 6890 | } | |
| 6891 | ||
| 6892 | // Commands are parameter-less actions that can be performed on an | |
| 6893 | // editor, mostly used for keybindings. | |
| 6894 | var commands = { | |
| 6895 | selectAll: selectAll, | |
| 6896 | singleSelection: function (cm) { return cm.setSelection(cm.getCursor("anchor"), cm.getCursor("head"), sel_dontScroll); }, | |
| 6897 | killLine: function (cm) { return deleteNearSelection(cm, function (range) { | |
| 6898 | if (range.empty()) { | |
| 6899 | var len = getLine(cm.doc, range.head.line).text.length; | |
| 6900 | if (range.head.ch == len && range.head.line < cm.lastLine()) | |
| 6901 | { return {from: range.head, to: Pos(range.head.line + 1, 0)} } | |
| 6902 | else | |
| 6903 | { return {from: range.head, to: Pos(range.head.line, len)} } | |
| 6904 | } else { | |
| 6905 | return {from: range.from(), to: range.to()} | |
| 6906 | } | |
| 6907 | }); }, | |
| 6908 | deleteLine: function (cm) { return deleteNearSelection(cm, function (range) { return ({ | |
| 6909 | from: Pos(range.from().line, 0), | |
| 6910 | to: clipPos(cm.doc, Pos(range.to().line + 1, 0)) | |
| 6911 | }); }); }, | |
| 6912 | delLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { return ({ | |
| 6913 | from: Pos(range.from().line, 0), to: range.from() | |
| 6914 | }); }); }, | |
| 6915 | delWrappedLineLeft: function (cm) { return deleteNearSelection(cm, function (range) { | |
| 6916 | var top = cm.charCoords(range.head, "div").top + 5; | |
| 6917 | var leftPos = cm.coordsChar({left: 0, top: top}, "div"); | |
| 6918 | return {from: leftPos, to: range.from()} | |
| 6919 | }); }, | |
| 6920 | delWrappedLineRight: function (cm) { return deleteNearSelection(cm, function (range) { | |
| 6921 | var top = cm.charCoords(range.head, "div").top + 5; | |
| 6922 | var rightPos = cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div"); | |
| 6923 | return {from: range.from(), to: rightPos } | |
| 6924 | }); }, | |
| 6925 | undo: function (cm) { return cm.undo(); }, | |
| 6926 | redo: function (cm) { return cm.redo(); }, | |
| 6927 | undoSelection: function (cm) { return cm.undoSelection(); }, | |
| 6928 | redoSelection: function (cm) { return cm.redoSelection(); }, | |
| 6929 | goDocStart: function (cm) { return cm.extendSelection(Pos(cm.firstLine(), 0)); }, | |
| 6930 | goDocEnd: function (cm) { return cm.extendSelection(Pos(cm.lastLine())); }, | |
| 6931 | goLineStart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStart(cm, range.head.line); }, | |
| 6932 | {origin: "+move", bias: 1} | |
| 6933 | ); }, | |
| 6934 | goLineStartSmart: function (cm) { return cm.extendSelectionsBy(function (range) { return lineStartSmart(cm, range.head); }, | |
| 6935 | {origin: "+move", bias: 1} | |
| 6936 | ); }, | |
| 6937 | goLineEnd: function (cm) { return cm.extendSelectionsBy(function (range) { return lineEnd(cm, range.head.line); }, | |
| 6938 | {origin: "+move", bias: -1} | |
| 6939 | ); }, | |
| 6940 | goLineRight: function (cm) { return cm.extendSelectionsBy(function (range) { | |
| 6941 | var top = cm.cursorCoords(range.head, "div").top + 5; | |
| 6942 | return cm.coordsChar({left: cm.display.lineDiv.offsetWidth + 100, top: top}, "div") | |
| 6943 | }, sel_move); }, | |
| 6944 | goLineLeft: function (cm) { return cm.extendSelectionsBy(function (range) { | |
| 6945 | var top = cm.cursorCoords(range.head, "div").top + 5; | |
| 6946 | return cm.coordsChar({left: 0, top: top}, "div") | |
| 6947 | }, sel_move); }, | |
| 6948 | goLineLeftSmart: function (cm) { return cm.extendSelectionsBy(function (range) { | |
| 6949 | var top = cm.cursorCoords(range.head, "div").top + 5; | |
| 6950 | var pos = cm.coordsChar({left: 0, top: top}, "div"); | |
| 6951 | if (pos.ch < cm.getLine(pos.line).search(/\S/)) { return lineStartSmart(cm, range.head) } | |
| 6952 | return pos | |
| 6953 | }, sel_move); }, | |
| 6954 | goLineUp: function (cm) { return cm.moveV(-1, "line"); }, | |
| 6955 | goLineDown: function (cm) { return cm.moveV(1, "line"); }, | |
| 6956 | goPageUp: function (cm) { return cm.moveV(-1, "page"); }, | |
| 6957 | goPageDown: function (cm) { return cm.moveV(1, "page"); }, | |
| 6958 | goCharLeft: function (cm) { return cm.moveH(-1, "char"); }, | |
| 6959 | goCharRight: function (cm) { return cm.moveH(1, "char"); }, | |
| 6960 | goColumnLeft: function (cm) { return cm.moveH(-1, "column"); }, | |
| 6961 | goColumnRight: function (cm) { return cm.moveH(1, "column"); }, | |
| 6962 | goWordLeft: function (cm) { return cm.moveH(-1, "word"); }, | |
| 6963 | goGroupRight: function (cm) { return cm.moveH(1, "group"); }, | |
| 6964 | goGroupLeft: function (cm) { return cm.moveH(-1, "group"); }, | |
| 6965 | goWordRight: function (cm) { return cm.moveH(1, "word"); }, | |
| 6966 | delCharBefore: function (cm) { return cm.deleteH(-1, "char"); }, | |
| 6967 | delCharAfter: function (cm) { return cm.deleteH(1, "char"); }, | |
| 6968 | delWordBefore: function (cm) { return cm.deleteH(-1, "word"); }, | |
| 6969 | delWordAfter: function (cm) { return cm.deleteH(1, "word"); }, | |
| 6970 | delGroupBefore: function (cm) { return cm.deleteH(-1, "group"); }, | |
| 6971 | delGroupAfter: function (cm) { return cm.deleteH(1, "group"); }, | |
| 6972 | indentAuto: function (cm) { return cm.indentSelection("smart"); }, | |
| 6973 | indentMore: function (cm) { return cm.indentSelection("add"); }, | |
| 6974 | indentLess: function (cm) { return cm.indentSelection("subtract"); }, | |
| 6975 | insertTab: function (cm) { return cm.replaceSelection("\t"); }, | |
| 6976 | insertSoftTab: function (cm) { | |
| 6977 | var spaces = [], ranges = cm.listSelections(), tabSize = cm.options.tabSize; | |
| 6978 | for (var i = 0; i < ranges.length; i++) { | |
| 6979 | var pos = ranges[i].from(); | |
| 6980 | var col = countColumn(cm.getLine(pos.line), pos.ch, tabSize); | |
| 6981 | spaces.push(spaceStr(tabSize - col % tabSize)); | |
| 6982 | } | |
| 6983 | cm.replaceSelections(spaces); | |
| 6984 | }, | |
| 6985 | defaultTab: function (cm) { | |
| 6986 | if (cm.somethingSelected()) { cm.indentSelection("add"); } | |
| 6987 | else { cm.execCommand("insertTab"); } | |
| 6988 | }, | |
| 6989 | // Swap the two chars left and right of each selection's head. | |
| 6990 | // Move cursor behind the two swapped characters afterwards. | |
| 6991 | // | |
| 6992 | // Doesn't consider line feeds a character. | |
| 6993 | // Doesn't scan more than one line above to find a character. | |
| 6994 | // Doesn't do anything on an empty line. | |
| 6995 | // Doesn't do anything with non-empty selections. | |
| 6996 | transposeChars: function (cm) { return runInOp(cm, function () { | |
| 6997 | var ranges = cm.listSelections(), newSel = []; | |
| 6998 | for (var i = 0; i < ranges.length; i++) { | |
| 6999 | if (!ranges[i].empty()) { continue } | |
| 7000 | var cur = ranges[i].head, line = getLine(cm.doc, cur.line).text; | |
| 7001 | if (line) { | |
| 7002 | if (cur.ch == line.length) { cur = new Pos(cur.line, cur.ch - 1); } | |
| 7003 | if (cur.ch > 0) { | |
| 7004 | cur = new Pos(cur.line, cur.ch + 1); | |
| 7005 | cm.replaceRange(line.charAt(cur.ch - 1) + line.charAt(cur.ch - 2), | |
| 7006 | Pos(cur.line, cur.ch - 2), cur, "+transpose"); | |
| 7007 | } else if (cur.line > cm.doc.first) { | |
| 7008 | var prev = getLine(cm.doc, cur.line - 1).text; | |
| 7009 | if (prev) { | |
| 7010 | cur = new Pos(cur.line, 1); | |
| 7011 | cm.replaceRange(line.charAt(0) + cm.doc.lineSeparator() + | |
| 7012 | prev.charAt(prev.length - 1), | |
| 7013 | Pos(cur.line - 1, prev.length - 1), cur, "+transpose"); | |
| 7014 | } | |
| 7015 | } | |
| 7016 | } | |
| 7017 | newSel.push(new Range(cur, cur)); | |
| 7018 | } | |
| 7019 | cm.setSelections(newSel); | |
| 7020 | }); }, | |
| 7021 | newlineAndIndent: function (cm) { return runInOp(cm, function () { | |
| 7022 | var sels = cm.listSelections(); | |
| 7023 | for (var i = sels.length - 1; i >= 0; i--) | |
| 7024 | { cm.replaceRange(cm.doc.lineSeparator(), sels[i].anchor, sels[i].head, "+input"); } | |
| 7025 | sels = cm.listSelections(); | |
| 7026 | for (var i$1 = 0; i$1 < sels.length; i$1++) | |
| 7027 | { cm.indentLine(sels[i$1].from().line, null, true); } | |
| 7028 | ensureCursorVisible(cm); | |
| 7029 | }); }, | |
| 7030 | openLine: function (cm) { return cm.replaceSelection("\n", "start"); }, | |
| 7031 | toggleOverwrite: function (cm) { return cm.toggleOverwrite(); } | |
| 7032 | }; | |
| 7033 | ||
| 7034 | ||
| 7035 | function lineStart(cm, lineN) { | |
| 7036 | var line = getLine(cm.doc, lineN); | |
| 7037 | var visual = visualLine(line); | |
| 7038 | if (visual != line) { lineN = lineNo(visual); } | |
| 7039 | return endOfLine(true, cm, visual, lineN, 1) | |
| 7040 | } | |
| 7041 | function lineEnd(cm, lineN) { | |
| 7042 | var line = getLine(cm.doc, lineN); | |
| 7043 | var visual = visualLineEnd(line); | |
| 7044 | if (visual != line) { lineN = lineNo(visual); } | |
| 7045 | return endOfLine(true, cm, line, lineN, -1) | |
| 7046 | } | |
| 7047 | function lineStartSmart(cm, pos) { | |
| 7048 | var start = lineStart(cm, pos.line); | |
| 7049 | var line = getLine(cm.doc, start.line); | |
| 7050 | var order = getOrder(line, cm.doc.direction); | |
| 7051 | if (!order || order[0].level == 0) { | |
| 7052 | var firstNonWS = Math.max(0, line.text.search(/\S/)); | |
| 7053 | var inWS = pos.line == start.line && pos.ch <= firstNonWS && pos.ch; | |
| 7054 | return Pos(start.line, inWS ? 0 : firstNonWS, start.sticky) | |
| 7055 | } | |
| 7056 | return start | |
| 7057 | } | |
| 7058 | ||
| 7059 | // Run a handler that was bound to a key. | |
| 7060 | function doHandleBinding(cm, bound, dropShift) { | |
| 7061 | if (typeof bound == "string") { | |
| 7062 | bound = commands[bound]; | |
| 7063 | if (!bound) { return false } | |
| 7064 | } | |
| 7065 | // Ensure previous input has been read, so that the handler sees a | |
| 7066 | // consistent view of the document | |
| 7067 | cm.display.input.ensurePolled(); | |
| 7068 | var prevShift = cm.display.shift, done = false; | |
| 7069 | try { | |
| 7070 | if (cm.isReadOnly()) { cm.state.suppressEdits = true; } | |
| 7071 | if (dropShift) { cm.display.shift = false; } | |
| 7072 | done = bound(cm) != Pass; | |
| 7073 | } finally { | |
| 7074 | cm.display.shift = prevShift; | |
| 7075 | cm.state.suppressEdits = false; | |
| 7076 | } | |
| 7077 | return done | |
| 7078 | } | |
| 7079 | ||
| 7080 | function lookupKeyForEditor(cm, name, handle) { | |
| 7081 | for (var i = 0; i < cm.state.keyMaps.length; i++) { | |
| 7082 | var result = lookupKey(name, cm.state.keyMaps[i], handle, cm); | |
| 7083 | if (result) { return result } | |
| 7084 | } | |
| 7085 | return (cm.options.extraKeys && lookupKey(name, cm.options.extraKeys, handle, cm)) | |
| 7086 | || lookupKey(name, cm.options.keyMap, handle, cm) | |
| 7087 | } | |
| 7088 | ||
| 7089 | // Note that, despite the name, this function is also used to check | |
| 7090 | // for bound mouse clicks. | |
| 7091 | ||
| 7092 | var stopSeq = new Delayed; | |
| 7093 | ||
| 7094 | function dispatchKey(cm, name, e, handle) { | |
| 7095 | var seq = cm.state.keySeq; | |
| 7096 | if (seq) { | |
| 7097 | if (isModifierKey(name)) { return "handled" } | |
| 7098 | if (/\'$/.test(name)) | |
| 7099 | { cm.state.keySeq = null; } | |
| 7100 | else | |
| 7101 | { stopSeq.set(50, function () { | |
| 7102 | if (cm.state.keySeq == seq) { | |
| 7103 | cm.state.keySeq = null; | |
| 7104 | cm.display.input.reset(); | |
| 7105 | } | |
| 7106 | }); } | |
| 7107 | if (dispatchKeyInner(cm, seq + " " + name, e, handle)) { return true } | |
| 7108 | } | |
| 7109 | return dispatchKeyInner(cm, name, e, handle) | |
| 7110 | } | |
| 7111 | ||
| 7112 | function dispatchKeyInner(cm, name, e, handle) { | |
| 7113 | var result = lookupKeyForEditor(cm, name, handle); | |
| 7114 | ||
| 7115 | if (result == "multi") | |
| 7116 | { cm.state.keySeq = name; } | |
| 7117 | if (result == "handled") | |
| 7118 | { signalLater(cm, "keyHandled", cm, name, e); } | |
| 7119 | ||
| 7120 | if (result == "handled" || result == "multi") { | |
| 7121 | e_preventDefault(e); | |
| 7122 | restartBlink(cm); | |
| 7123 | } | |
| 7124 | ||
| 7125 | return !!result | |
| 7126 | } | |
| 7127 | ||
| 7128 | // Handle a key from the keydown event. | |
| 7129 | function handleKeyBinding(cm, e) { | |
| 7130 | var name = keyName(e, true); | |
| 7131 | if (!name) { return false } | |
| 7132 | ||
| 7133 | if (e.shiftKey && !cm.state.keySeq) { | |
| 7134 | // First try to resolve full name (including 'Shift-'). Failing | |
| 7135 | // that, see if there is a cursor-motion command (starting with | |
| 7136 | // 'go') bound to the keyname without 'Shift-'. | |
| 7137 | return dispatchKey(cm, "Shift-" + name, e, function (b) { return doHandleBinding(cm, b, true); }) | |
| 7138 | || dispatchKey(cm, name, e, function (b) { | |
| 7139 | if (typeof b == "string" ? /^go[A-Z]/.test(b) : b.motion) | |
| 7140 | { return doHandleBinding(cm, b) } | |
| 7141 | }) | |
| 7142 | } else { | |
| 7143 | return dispatchKey(cm, name, e, function (b) { return doHandleBinding(cm, b); }) | |
| 7144 | } | |
| 7145 | } | |
| 7146 | ||
| 7147 | // Handle a key from the keypress event | |
| 7148 | function handleCharBinding(cm, e, ch) { | |
| 7149 | return dispatchKey(cm, "'" + ch + "'", e, function (b) { return doHandleBinding(cm, b, true); }) | |
| 7150 | } | |
| 7151 | ||
| 7152 | var lastStoppedKey = null; | |
| 7153 | function onKeyDown(e) { | |
| 7154 | var cm = this; | |
| 7155 | cm.curOp.focus = activeElt(); | |
| 7156 | if (signalDOMEvent(cm, e)) { return } | |
| 7157 | // IE does strange things with escape. | |
| 7158 | if (ie && ie_version < 11 && e.keyCode == 27) { e.returnValue = false; } | |
| 7159 | var code = e.keyCode; | |
| 7160 | cm.display.shift = code == 16 || e.shiftKey; | |
| 7161 | var handled = handleKeyBinding(cm, e); | |
| 7162 | if (presto) { | |
| 7163 | lastStoppedKey = handled ? code : null; | |
| 7164 | // Opera has no cut event... we try to at least catch the key combo | |
| 7165 | if (!handled && code == 88 && !hasCopyEvent && (mac ? e.metaKey : e.ctrlKey)) | |
| 7166 | { cm.replaceSelection("", null, "cut"); } | |
| 7167 | } | |
| 7168 | ||
| 7169 | // Turn mouse into crosshair when Alt is held on Mac. | |
| 7170 | if (code == 18 && !/\bCodeMirror-crosshair\b/.test(cm.display.lineDiv.className)) | |
| 7171 | { showCrossHair(cm); } | |
| 7172 | } | |
| 7173 | ||
| 7174 | function showCrossHair(cm) { | |
| 7175 | var lineDiv = cm.display.lineDiv; | |
| 7176 | addClass(lineDiv, "CodeMirror-crosshair"); | |
| 7177 | ||
| 7178 | function up(e) { | |
| 7179 | if (e.keyCode == 18 || !e.altKey) { | |
| 7180 | rmClass(lineDiv, "CodeMirror-crosshair"); | |
| 7181 | off(document, "keyup", up); | |
| 7182 | off(document, "mouseover", up); | |
| 7183 | } | |
| 7184 | } | |
| 7185 | on(document, "keyup", up); | |
| 7186 | on(document, "mouseover", up); | |
| 7187 | } | |
| 7188 | ||
| 7189 | function onKeyUp(e) { | |
| 7190 | if (e.keyCode == 16) { this.doc.sel.shift = false; } | |
| 7191 | signalDOMEvent(this, e); | |
| 7192 | } | |
| 7193 | ||
| 7194 | function onKeyPress(e) { | |
| 7195 | var cm = this; | |
| 7196 | if (eventInWidget(cm.display, e) || signalDOMEvent(cm, e) || e.ctrlKey && !e.altKey || mac && e.metaKey) { return } | |
| 7197 | var keyCode = e.keyCode, charCode = e.charCode; | |
| 7198 | if (presto && keyCode == lastStoppedKey) {lastStoppedKey = null; e_preventDefault(e); return} | |
| 7199 | if ((presto && (!e.which || e.which < 10)) && handleKeyBinding(cm, e)) { return } | |
| 7200 | var ch = String.fromCharCode(charCode == null ? keyCode : charCode); | |
| 7201 | // Some browsers fire keypress events for backspace | |
| 7202 | if (ch == "\x08") { return } | |
| 7203 | if (handleCharBinding(cm, e, ch)) { return } | |
| 7204 | cm.display.input.onKeyPress(e); | |
| 7205 | } | |
| 7206 | ||
| 7207 | var DOUBLECLICK_DELAY = 400; | |
| 7208 | ||
| 7209 | var PastClick = function(time, pos, button) { | |
| 7210 | this.time = time; | |
| 7211 | this.pos = pos; | |
| 7212 | this.button = button; | |
| 7213 | }; | |
| 7214 | ||
| 7215 | PastClick.prototype.compare = function (time, pos, button) { | |
| 7216 | return this.time + DOUBLECLICK_DELAY > time && | |
| 7217 | cmp(pos, this.pos) == 0 && button == this.button | |
| 7218 | }; | |
| 7219 | ||
| 7220 | var lastClick, lastDoubleClick; | |
| 7221 | function clickRepeat(pos, button) { | |
| 7222 | var now = +new Date; | |
| 7223 | if (lastDoubleClick && lastDoubleClick.compare(now, pos, button)) { | |
| 7224 | lastClick = lastDoubleClick = null; | |
| 7225 | return "triple" | |
| 7226 | } else if (lastClick && lastClick.compare(now, pos, button)) { | |
| 7227 | lastDoubleClick = new PastClick(now, pos, button); | |
| 7228 | lastClick = null; | |
| 7229 | return "double" | |
| 7230 | } else { | |
| 7231 | lastClick = new PastClick(now, pos, button); | |
| 7232 | lastDoubleClick = null; | |
| 7233 | return "single" | |
| 7234 | } | |
| 7235 | } | |
| 7236 | ||
| 7237 | // A mouse down can be a single click, double click, triple click, | |
| 7238 | // start of selection drag, start of text drag, new cursor | |
| 7239 | // (ctrl-click), rectangle drag (alt-drag), or xwin | |
| 7240 | // middle-click-paste. Or it might be a click on something we should | |
| 7241 | // not interfere with, such as a scrollbar or widget. | |
| 7242 | function onMouseDown(e) { | |
| 7243 | var cm = this, display = cm.display; | |
| 7244 | if (signalDOMEvent(cm, e) || display.activeTouch && display.input.supportsTouch()) { return } | |
| 7245 | display.input.ensurePolled(); | |
| 7246 | display.shift = e.shiftKey; | |
| 7247 | ||
| 7248 | if (eventInWidget(display, e)) { | |
| 7249 | if (!webkit) { | |
| 7250 | // Briefly turn off draggability, to allow widgets to do | |
| 7251 | // normal dragging things. | |
| 7252 | display.scroller.draggable = false; | |
| 7253 | setTimeout(function () { return display.scroller.draggable = true; }, 100); | |
| 7254 | } | |
| 7255 | return | |
| 7256 | } | |
| 7257 | if (clickInGutter(cm, e)) { return } | |
| 7258 | var pos = posFromMouse(cm, e), button = e_button(e), repeat = pos ? clickRepeat(pos, button) : "single"; | |
| 7259 | window.focus(); | |
| 7260 | ||
| 7261 | // #3261: make sure, that we're not starting a second selection | |
| 7262 | if (button == 1 && cm.state.selectingText) | |
| 7263 | { cm.state.selectingText(e); } | |
| 7264 | ||
| 7265 | if (pos && handleMappedButton(cm, button, pos, repeat, e)) { return } | |
| 7266 | ||
| 7267 | if (button == 1) { | |
| 7268 | if (pos) { leftButtonDown(cm, pos, repeat, e); } | |
| 7269 | else if (e_target(e) == display.scroller) { e_preventDefault(e); } | |
| 7270 | } else if (button == 2) { | |
| 7271 | if (pos) { extendSelection(cm.doc, pos); } | |
| 7272 | setTimeout(function () { return display.input.focus(); }, 20); | |
| 7273 | } else if (button == 3) { | |
| 7274 | if (captureRightClick) { cm.display.input.onContextMenu(e); } | |
| 7275 | else { delayBlurEvent(cm); } | |
| 7276 | } | |
| 7277 | } | |
| 7278 | ||
| 7279 | function handleMappedButton(cm, button, pos, repeat, event) { | |
| 7280 | var name = "Click"; | |
| 7281 | if (repeat == "double") { name = "Double" + name; } | |
| 7282 | else if (repeat == "triple") { name = "Triple" + name; } | |
| 7283 | name = (button == 1 ? "Left" : button == 2 ? "Middle" : "Right") + name; | |
| 7284 | ||
| 7285 | return dispatchKey(cm, addModifierNames(name, event), event, function (bound) { | |
| 7286 | if (typeof bound == "string") { bound = commands[bound]; } | |
| 7287 | if (!bound) { return false } | |
| 7288 | var done = false; | |
| 7289 | try { | |
| 7290 | if (cm.isReadOnly()) { cm.state.suppressEdits = true; } | |
| 7291 | done = bound(cm, pos) != Pass; | |
| 7292 | } finally { | |
| 7293 | cm.state.suppressEdits = false; | |
| 7294 | } | |
| 7295 | return done | |
| 7296 | }) | |
| 7297 | } | |
| 7298 | ||
| 7299 | function configureMouse(cm, repeat, event) { | |
| 7300 | var option = cm.getOption("configureMouse"); | |
| 7301 | var value = option ? option(cm, repeat, event) : {}; | |
| 7302 | if (value.unit == null) { | |
| 7303 | var rect = chromeOS ? event.shiftKey && event.metaKey : event.altKey; | |
| 7304 | value.unit = rect ? "rectangle" : repeat == "single" ? "char" : repeat == "double" ? "word" : "line"; | |
| 7305 | } | |
| 7306 | if (value.extend == null || cm.doc.extend) { value.extend = cm.doc.extend || event.shiftKey; } | |
| 7307 | if (value.addNew == null) { value.addNew = mac ? event.metaKey : event.ctrlKey; } | |
| 7308 | if (value.moveOnDrag == null) { value.moveOnDrag = !(mac ? event.altKey : event.ctrlKey); } | |
| 7309 | return value | |
| 7310 | } | |
| 7311 | ||
| 7312 | function leftButtonDown(cm, pos, repeat, event) { | |
| 7313 | if (ie) { setTimeout(bind(ensureFocus, cm), 0); } | |
| 7314 | else { cm.curOp.focus = activeElt(); } | |
| 7315 | ||
| 7316 | var behavior = configureMouse(cm, repeat, event); | |
| 7317 | ||
| 7318 | var sel = cm.doc.sel, contained; | |
| 7319 | if (cm.options.dragDrop && dragAndDrop && !cm.isReadOnly() && | |
| 7320 | repeat == "single" && (contained = sel.contains(pos)) > -1 && | |
| 7321 | (cmp((contained = sel.ranges[contained]).from(), pos) < 0 || pos.xRel > 0) && | |
| 7322 | (cmp(contained.to(), pos) > 0 || pos.xRel < 0)) | |
| 7323 | { leftButtonStartDrag(cm, event, pos, behavior); } | |
| 7324 | else | |
| 7325 | { leftButtonSelect(cm, event, pos, behavior); } | |
| 7326 | } | |
| 7327 | ||
| 7328 | // Start a text drag. When it ends, see if any dragging actually | |
| 7329 | // happen, and treat as a click if it didn't. | |
| 7330 | function leftButtonStartDrag(cm, event, pos, behavior) { | |
| 7331 | var display = cm.display, moved = false; | |
| 7332 | var dragEnd = operation(cm, function (e) { | |
| 7333 | if (webkit) { display.scroller.draggable = false; } | |
| 7334 | cm.state.draggingText = false; | |
| 7335 | off(display.wrapper.ownerDocument, "mouseup", dragEnd); | |
| 7336 | off(display.wrapper.ownerDocument, "mousemove", mouseMove); | |
| 7337 | off(display.scroller, "dragstart", dragStart); | |
| 7338 | off(display.scroller, "drop", dragEnd); | |
| 7339 | if (!moved) { | |
| 7340 | e_preventDefault(e); | |
| 7341 | if (!behavior.addNew) | |
| 7342 | { extendSelection(cm.doc, pos, null, null, behavior.extend); } | |
| 7343 | // Work around unexplainable focus problem in IE9 (#2127) and Chrome (#3081) | |
| 7344 | if (webkit || ie && ie_version == 9) | |
| 7345 | { setTimeout(function () {display.wrapper.ownerDocument.body.focus(); display.input.focus();}, 20); } | |
| 7346 | else | |
| 7347 | { display.input.focus(); } | |
| 7348 | } | |
| 7349 | }); | |
| 7350 | var mouseMove = function(e2) { | |
| 7351 | moved = moved || Math.abs(event.clientX - e2.clientX) + Math.abs(event.clientY - e2.clientY) >= 10; | |
| 7352 | }; | |
| 7353 | var dragStart = function () { return moved = true; }; | |
| 7354 | // Let the drag handler handle this. | |
| 7355 | if (webkit) { display.scroller.draggable = true; } | |
| 7356 | cm.state.draggingText = dragEnd; | |
| 7357 | dragEnd.copy = !behavior.moveOnDrag; | |
| 7358 | // IE's approach to draggable | |
| 7359 | if (display.scroller.dragDrop) { display.scroller.dragDrop(); } | |
| 7360 | on(display.wrapper.ownerDocument, "mouseup", dragEnd); | |
| 7361 | on(display.wrapper.ownerDocument, "mousemove", mouseMove); | |
| 7362 | on(display.scroller, "dragstart", dragStart); | |
| 7363 | on(display.scroller, "drop", dragEnd); | |
| 7364 | ||
| 7365 | delayBlurEvent(cm); | |
| 7366 | setTimeout(function () { return display.input.focus(); }, 20); | |
| 7367 | } | |
| 7368 | ||
| 7369 | function rangeForUnit(cm, pos, unit) { | |
| 7370 | if (unit == "char") { return new Range(pos, pos) } | |
| 7371 | if (unit == "word") { return cm.findWordAt(pos) } | |
| 7372 | if (unit == "line") { return new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))) } | |
| 7373 | var result = unit(cm, pos); | |
| 7374 | return new Range(result.from, result.to) | |
| 7375 | } | |
| 7376 | ||
| 7377 | // Normal selection, as opposed to text dragging. | |
| 7378 | function leftButtonSelect(cm, event, start, behavior) { | |
| 7379 | var display = cm.display, doc = cm.doc; | |
| 7380 | e_preventDefault(event); | |
| 7381 | ||
| 7382 | var ourRange, ourIndex, startSel = doc.sel, ranges = startSel.ranges; | |
| 7383 | if (behavior.addNew && !behavior.extend) { | |
| 7384 | ourIndex = doc.sel.contains(start); | |
| 7385 | if (ourIndex > -1) | |
| 7386 | { ourRange = ranges[ourIndex]; } | |
| 7387 | else | |
| 7388 | { ourRange = new Range(start, start); } | |
| 7389 | } else { | |
| 7390 | ourRange = doc.sel.primary(); | |
| 7391 | ourIndex = doc.sel.primIndex; | |
| 7392 | } | |
| 7393 | ||
| 7394 | if (behavior.unit == "rectangle") { | |
| 7395 | if (!behavior.addNew) { ourRange = new Range(start, start); } | |
| 7396 | start = posFromMouse(cm, event, true, true); | |
| 7397 | ourIndex = -1; | |
| 7398 | } else { | |
| 7399 | var range$$1 = rangeForUnit(cm, start, behavior.unit); | |
| 7400 | if (behavior.extend) | |
| 7401 | { ourRange = extendRange(ourRange, range$$1.anchor, range$$1.head, behavior.extend); } | |
| 7402 | else | |
| 7403 | { ourRange = range$$1; } | |
| 7404 | } | |
| 7405 | ||
| 7406 | if (!behavior.addNew) { | |
| 7407 | ourIndex = 0; | |
| 7408 | setSelection(doc, new Selection([ourRange], 0), sel_mouse); | |
| 7409 | startSel = doc.sel; | |
| 7410 | } else if (ourIndex == -1) { | |
| 7411 | ourIndex = ranges.length; | |
| 7412 | setSelection(doc, normalizeSelection(cm, ranges.concat([ourRange]), ourIndex), | |
| 7413 | {scroll: false, origin: "*mouse"}); | |
| 7414 | } else if (ranges.length > 1 && ranges[ourIndex].empty() && behavior.unit == "char" && !behavior.extend) { | |
| 7415 | setSelection(doc, normalizeSelection(cm, ranges.slice(0, ourIndex).concat(ranges.slice(ourIndex + 1)), 0), | |
| 7416 | {scroll: false, origin: "*mouse"}); | |
| 7417 | startSel = doc.sel; | |
| 7418 | } else { | |
| 7419 | replaceOneSelection(doc, ourIndex, ourRange, sel_mouse); | |
| 7420 | } | |
| 7421 | ||
| 7422 | var lastPos = start; | |
| 7423 | function extendTo(pos) { | |
| 7424 | if (cmp(lastPos, pos) == 0) { return } | |
| 7425 | lastPos = pos; | |
| 7426 | ||
| 7427 | if (behavior.unit == "rectangle") { | |
| 7428 | var ranges = [], tabSize = cm.options.tabSize; | |
| 7429 | var startCol = countColumn(getLine(doc, start.line).text, start.ch, tabSize); | |
| 7430 | var posCol = countColumn(getLine(doc, pos.line).text, pos.ch, tabSize); | |
| 7431 | var left = Math.min(startCol, posCol), right = Math.max(startCol, posCol); | |
| 7432 | for (var line = Math.min(start.line, pos.line), end = Math.min(cm.lastLine(), Math.max(start.line, pos.line)); | |
| 7433 | line <= end; line++) { | |
| 7434 | var text = getLine(doc, line).text, leftPos = findColumn(text, left, tabSize); | |
| 7435 | if (left == right) | |
| 7436 | { ranges.push(new Range(Pos(line, leftPos), Pos(line, leftPos))); } | |
| 7437 | else if (text.length > leftPos) | |
| 7438 | { ranges.push(new Range(Pos(line, leftPos), Pos(line, findColumn(text, right, tabSize)))); } | |
| 7439 | } | |
| 7440 | if (!ranges.length) { ranges.push(new Range(start, start)); } | |
| 7441 | setSelection(doc, normalizeSelection(cm, startSel.ranges.slice(0, ourIndex).concat(ranges), ourIndex), | |
| 7442 | {origin: "*mouse", scroll: false}); | |
| 7443 | cm.scrollIntoView(pos); | |
| 7444 | } else { | |
| 7445 | var oldRange = ourRange; | |
| 7446 | var range$$1 = rangeForUnit(cm, pos, behavior.unit); | |
| 7447 | var anchor = oldRange.anchor, head; | |
| 7448 | if (cmp(range$$1.anchor, anchor) > 0) { | |
| 7449 | head = range$$1.head; | |
| 7450 | anchor = minPos(oldRange.from(), range$$1.anchor); | |
| 7451 | } else { | |
| 7452 | head = range$$1.anchor; | |
| 7453 | anchor = maxPos(oldRange.to(), range$$1.head); | |
| 7454 | } | |
| 7455 | var ranges$1 = startSel.ranges.slice(0); | |
| 7456 | ranges$1[ourIndex] = bidiSimplify(cm, new Range(clipPos(doc, anchor), head)); | |
| 7457 | setSelection(doc, normalizeSelection(cm, ranges$1, ourIndex), sel_mouse); | |
| 7458 | } | |
| 7459 | } | |
| 7460 | ||
| 7461 | var editorSize = display.wrapper.getBoundingClientRect(); | |
| 7462 | // Used to ensure timeout re-tries don't fire when another extend | |
| 7463 | // happened in the meantime (clearTimeout isn't reliable -- at | |
| 7464 | // least on Chrome, the timeouts still happen even when cleared, | |
| 7465 | // if the clear happens after their scheduled firing time). | |
| 7466 | var counter = 0; | |
| 7467 | ||
| 7468 | function extend(e) { | |
| 7469 | var curCount = ++counter; | |
| 7470 | var cur = posFromMouse(cm, e, true, behavior.unit == "rectangle"); | |
| 7471 | if (!cur) { return } | |
| 7472 | if (cmp(cur, lastPos) != 0) { | |
| 7473 | cm.curOp.focus = activeElt(); | |
| 7474 | extendTo(cur); | |
| 7475 | var visible = visibleLines(display, doc); | |
| 7476 | if (cur.line >= visible.to || cur.line < visible.from) | |
| 7477 | { setTimeout(operation(cm, function () {if (counter == curCount) { extend(e); }}), 150); } | |
| 7478 | } else { | |
| 7479 | var outside = e.clientY < editorSize.top ? -20 : e.clientY > editorSize.bottom ? 20 : 0; | |
| 7480 | if (outside) { setTimeout(operation(cm, function () { | |
| 7481 | if (counter != curCount) { return } | |
| 7482 | display.scroller.scrollTop += outside; | |
| 7483 | extend(e); | |
| 7484 | }), 50); } | |
| 7485 | } | |
| 7486 | } | |
| 7487 | ||
| 7488 | function done(e) { | |
| 7489 | cm.state.selectingText = false; | |
| 7490 | counter = Infinity; | |
| 7491 | e_preventDefault(e); | |
| 7492 | display.input.focus(); | |
| 7493 | off(display.wrapper.ownerDocument, "mousemove", move); | |
| 7494 | off(display.wrapper.ownerDocument, "mouseup", up); | |
| 7495 | doc.history.lastSelOrigin = null; | |
| 7496 | } | |
| 7497 | ||
| 7498 | var move = operation(cm, function (e) { | |
| 7499 | if (e.buttons === 0 || !e_button(e)) { done(e); } | |
| 7500 | else { extend(e); } | |
| 7501 | }); | |
| 7502 | var up = operation(cm, done); | |
| 7503 | cm.state.selectingText = up; | |
| 7504 | on(display.wrapper.ownerDocument, "mousemove", move); | |
| 7505 | on(display.wrapper.ownerDocument, "mouseup", up); | |
| 7506 | } | |
| 7507 | ||
| 7508 | // Used when mouse-selecting to adjust the anchor to the proper side | |
| 7509 | // of a bidi jump depending on the visual position of the head. | |
| 7510 | function bidiSimplify(cm, range$$1) { | |
| 7511 | var anchor = range$$1.anchor; | |
| 7512 | var head = range$$1.head; | |
| 7513 | var anchorLine = getLine(cm.doc, anchor.line); | |
| 7514 | if (cmp(anchor, head) == 0 && anchor.sticky == head.sticky) { return range$$1 } | |
| 7515 | var order = getOrder(anchorLine); | |
| 7516 | if (!order) { return range$$1 } | |
| 7517 | var index = getBidiPartAt(order, anchor.ch, anchor.sticky), part = order[index]; | |
| 7518 | if (part.from != anchor.ch && part.to != anchor.ch) { return range$$1 } | |
| 7519 | var boundary = index + ((part.from == anchor.ch) == (part.level != 1) ? 0 : 1); | |
| 7520 | if (boundary == 0 || boundary == order.length) { return range$$1 } | |
| 7521 | ||
| 7522 | // Compute the relative visual position of the head compared to the | |
| 7523 | // anchor (<0 is to the left, >0 to the right) | |
| 7524 | var leftSide; | |
| 7525 | if (head.line != anchor.line) { | |
| 7526 | leftSide = (head.line - anchor.line) * (cm.doc.direction == "ltr" ? 1 : -1) > 0; | |
| 7527 | } else { | |
| 7528 | var headIndex = getBidiPartAt(order, head.ch, head.sticky); | |
| 7529 | var dir = headIndex - index || (head.ch - anchor.ch) * (part.level == 1 ? -1 : 1); | |
| 7530 | if (headIndex == boundary - 1 || headIndex == boundary) | |
| 7531 | { leftSide = dir < 0; } | |
| 7532 | else | |
| 7533 | { leftSide = dir > 0; } | |
| 7534 | } | |
| 7535 | ||
| 7536 | var usePart = order[boundary + (leftSide ? -1 : 0)]; | |
| 7537 | var from = leftSide == (usePart.level == 1); | |
| 7538 | var ch = from ? usePart.from : usePart.to, sticky = from ? "after" : "before"; | |
| 7539 | return anchor.ch == ch && anchor.sticky == sticky ? range$$1 : new Range(new Pos(anchor.line, ch, sticky), head) | |
| 7540 | } | |
| 7541 | ||
| 7542 | ||
| 7543 | // Determines whether an event happened in the gutter, and fires the | |
| 7544 | // handlers for the corresponding event. | |
| 7545 | function gutterEvent(cm, e, type, prevent) { | |
| 7546 | var mX, mY; | |
| 7547 | if (e.touches) { | |
| 7548 | mX = e.touches[0].clientX; | |
| 7549 | mY = e.touches[0].clientY; | |
| 7550 | } else { | |
| 7551 | try { mX = e.clientX; mY = e.clientY; } | |
| 7552 | catch(e) { return false } | |
| 7553 | } | |
| 7554 | if (mX >= Math.floor(cm.display.gutters.getBoundingClientRect().right)) { return false } | |
| 7555 | if (prevent) { e_preventDefault(e); } | |
| 7556 | ||
| 7557 | var display = cm.display; | |
| 7558 | var lineBox = display.lineDiv.getBoundingClientRect(); | |
| 7559 | ||
| 7560 | if (mY > lineBox.bottom || !hasHandler(cm, type)) { return e_defaultPrevented(e) } | |
| 7561 | mY -= lineBox.top - display.viewOffset; | |
| 7562 | ||
| 7563 | for (var i = 0; i < cm.options.gutters.length; ++i) { | |
| 7564 | var g = display.gutters.childNodes[i]; | |
| 7565 | if (g && g.getBoundingClientRect().right >= mX) { | |
| 7566 | var line = lineAtHeight(cm.doc, mY); | |
| 7567 | var gutter = cm.options.gutters[i]; | |
| 7568 | signal(cm, type, cm, line, gutter, e); | |
| 7569 | return e_defaultPrevented(e) | |
| 7570 | } | |
| 7571 | } | |
| 7572 | } | |
| 7573 | ||
| 7574 | function clickInGutter(cm, e) { | |
| 7575 | return gutterEvent(cm, e, "gutterClick", true) | |
| 7576 | } | |
| 7577 | ||
| 7578 | // CONTEXT MENU HANDLING | |
| 7579 | ||
| 7580 | // To make the context menu work, we need to briefly unhide the | |
| 7581 | // textarea (making it as unobtrusive as possible) to let the | |
| 7582 | // right-click take effect on it. | |
| 7583 | function onContextMenu(cm, e) { | |
| 7584 | if (eventInWidget(cm.display, e) || contextMenuInGutter(cm, e)) { return } | |
| 7585 | if (signalDOMEvent(cm, e, "contextmenu")) { return } | |
| 7586 | if (!captureRightClick) { cm.display.input.onContextMenu(e); } | |
| 7587 | } | |
| 7588 | ||
| 7589 | function contextMenuInGutter(cm, e) { | |
| 7590 | if (!hasHandler(cm, "gutterContextMenu")) { return false } | |
| 7591 | return gutterEvent(cm, e, "gutterContextMenu", false) | |
| 7592 | } | |
| 7593 | ||
| 7594 | function themeChanged(cm) { | |
| 7595 | cm.display.wrapper.className = cm.display.wrapper.className.replace(/\s*cm-s-\S+/g, "") + | |
| 7596 | cm.options.theme.replace(/(^|\s)\s*/g, " cm-s-"); | |
| 7597 | clearCaches(cm); | |
| 7598 | } | |
| 7599 | ||
| 7600 | var Init = {toString: function(){return "CodeMirror.Init"}}; | |
| 7601 | ||
| 7602 | var defaults = {}; | |
| 7603 | var optionHandlers = {}; | |
| 7604 | ||
| 7605 | function defineOptions(CodeMirror) { | |
| 7606 | var optionHandlers = CodeMirror.optionHandlers; | |
| 7607 | ||
| 7608 | function option(name, deflt, handle, notOnInit) { | |
| 7609 | CodeMirror.defaults[name] = deflt; | |
| 7610 | if (handle) { optionHandlers[name] = | |
| 7611 | notOnInit ? function (cm, val, old) {if (old != Init) { handle(cm, val, old); }} : handle; } | |
| 7612 | } | |
| 7613 | ||
| 7614 | CodeMirror.defineOption = option; | |
| 7615 | ||
| 7616 | // Passed to option handlers when there is no old value. | |
| 7617 | CodeMirror.Init = Init; | |
| 7618 | ||
| 7619 | // These two are, on init, called from the constructor because they | |
| 7620 | // have to be initialized before the editor can start at all. | |
| 7621 | option("value", "", function (cm, val) { return cm.setValue(val); }, true); | |
| 7622 | option("mode", null, function (cm, val) { | |
| 7623 | cm.doc.modeOption = val; | |
| 7624 | loadMode(cm); | |
| 7625 | }, true); | |
| 7626 | ||
| 7627 | option("indentUnit", 2, loadMode, true); | |
| 7628 | option("indentWithTabs", false); | |
| 7629 | option("smartIndent", true); | |
| 7630 | option("tabSize", 4, function (cm) { | |
| 7631 | resetModeState(cm); | |
| 7632 | clearCaches(cm); | |
| 7633 | regChange(cm); | |
| 7634 | }, true); | |
| 7635 | ||
| 7636 | option("lineSeparator", null, function (cm, val) { | |
| 7637 | cm.doc.lineSep = val; | |
| 7638 | if (!val) { return } | |
| 7639 | var newBreaks = [], lineNo = cm.doc.first; | |
| 7640 | cm.doc.iter(function (line) { | |
| 7641 | for (var pos = 0;;) { | |
| 7642 | var found = line.text.indexOf(val, pos); | |
| 7643 | if (found == -1) { break } | |
| 7644 | pos = found + val.length; | |
| 7645 | newBreaks.push(Pos(lineNo, found)); | |
| 7646 | } | |
| 7647 | lineNo++; | |
| 7648 | }); | |
| 7649 | for (var i = newBreaks.length - 1; i >= 0; i--) | |
| 7650 | { replaceRange(cm.doc, val, newBreaks[i], Pos(newBreaks[i].line, newBreaks[i].ch + val.length)); } | |
| 7651 | }); | |
| 7652 | option("specialChars", /[\u0000-\u001f\u007f-\u009f\u00ad\u061c\u200b-\u200f\u2028\u2029\ufeff]/g, function (cm, val, old) { | |
| 7653 | cm.state.specialChars = new RegExp(val.source + (val.test("\t") ? "" : "|\t"), "g"); | |
| 7654 | if (old != Init) { cm.refresh(); } | |
| 7655 | }); | |
| 7656 | option("specialCharPlaceholder", defaultSpecialCharPlaceholder, function (cm) { return cm.refresh(); }, true); | |
| 7657 | option("electricChars", true); | |
| 7658 | option("inputStyle", mobile ? "contenteditable" : "textarea", function () { | |
| 7659 | throw new Error("inputStyle can not (yet) be changed in a running editor") // FIXME | |
| 7660 | }, true); | |
| 7661 | option("spellcheck", false, function (cm, val) { return cm.getInputField().spellcheck = val; }, true); | |
| 7662 | option("rtlMoveVisually", !windows); | |
| 7663 | option("wholeLineUpdateBefore", true); | |
| 7664 | ||
| 7665 | option("theme", "default", function (cm) { | |
| 7666 | themeChanged(cm); | |
| 7667 | guttersChanged(cm); | |
| 7668 | }, true); | |
| 7669 | option("keyMap", "default", function (cm, val, old) { | |
| 7670 | var next = getKeyMap(val); | |
| 7671 | var prev = old != Init && getKeyMap(old); | |
| 7672 | if (prev && prev.detach) { prev.detach(cm, next); } | |
| 7673 | if (next.attach) { next.attach(cm, prev || null); } | |
| 7674 | }); | |
| 7675 | option("extraKeys", null); | |
| 7676 | option("configureMouse", null); | |
| 7677 | ||
| 7678 | option("lineWrapping", false, wrappingChanged, true); | |
| 7679 | option("gutters", [], function (cm) { | |
| 7680 | setGuttersForLineNumbers(cm.options); | |
| 7681 | guttersChanged(cm); | |
| 7682 | }, true); | |
| 7683 | option("fixedGutter", true, function (cm, val) { | |
| 7684 | cm.display.gutters.style.left = val ? compensateForHScroll(cm.display) + "px" : "0"; | |
| 7685 | cm.refresh(); | |
| 7686 | }, true); | |
| 7687 | option("coverGutterNextToScrollbar", false, function (cm) { return updateScrollbars(cm); }, true); | |
| 7688 | option("scrollbarStyle", "native", function (cm) { | |
| 7689 | initScrollbars(cm); | |
| 7690 | updateScrollbars(cm); | |
| 7691 | cm.display.scrollbars.setScrollTop(cm.doc.scrollTop); | |
| 7692 | cm.display.scrollbars.setScrollLeft(cm.doc.scrollLeft); | |
| 7693 | }, true); | |
| 7694 | option("lineNumbers", false, function (cm) { | |
| 7695 | setGuttersForLineNumbers(cm.options); | |
| 7696 | guttersChanged(cm); | |
| 7697 | }, true); | |
| 7698 | option("firstLineNumber", 1, guttersChanged, true); | |
| 7699 | option("lineNumberFormatter", function (integer) { return integer; }, guttersChanged, true); | |
| 7700 | option("showCursorWhenSelecting", false, updateSelection, true); | |
| 7701 | ||
| 7702 | option("resetSelectionOnContextMenu", true); | |
| 7703 | option("lineWiseCopyCut", true); | |
| 7704 | option("pasteLinesPerSelection", true); | |
| 7705 | option("selectionsMayTouch", false); | |
| 7706 | ||
| 7707 | option("readOnly", false, function (cm, val) { | |
| 7708 | if (val == "nocursor") { | |
| 7709 | onBlur(cm); | |
| 7710 | cm.display.input.blur(); | |
| 7711 | } | |
| 7712 | cm.display.input.readOnlyChanged(val); | |
| 7713 | }); | |
| 7714 | option("disableInput", false, function (cm, val) {if (!val) { cm.display.input.reset(); }}, true); | |
| 7715 | option("dragDrop", true, dragDropChanged); | |
| 7716 | option("allowDropFileTypes", null); | |
| 7717 | ||
| 7718 | option("cursorBlinkRate", 530); | |
| 7719 | option("cursorScrollMargin", 0); | |
| 7720 | option("cursorHeight", 1, updateSelection, true); | |
| 7721 | option("singleCursorHeightPerLine", true, updateSelection, true); | |
| 7722 | option("workTime", 100); | |
| 7723 | option("workDelay", 100); | |
| 7724 | option("flattenSpans", true, resetModeState, true); | |
| 7725 | option("addModeClass", false, resetModeState, true); | |
| 7726 | option("pollInterval", 100); | |
| 7727 | option("undoDepth", 200, function (cm, val) { return cm.doc.history.undoDepth = val; }); | |
| 7728 | option("historyEventDelay", 1250); | |
| 7729 | option("viewportMargin", 10, function (cm) { return cm.refresh(); }, true); | |
| 7730 | option("maxHighlightLength", 10000, resetModeState, true); | |
| 7731 | option("moveInputWithCursor", true, function (cm, val) { | |
| 7732 | if (!val) { cm.display.input.resetPosition(); } | |
| 7733 | }); | |
| 7734 | ||
| 7735 | option("tabindex", null, function (cm, val) { return cm.display.input.getField().tabIndex = val || ""; }); | |
| 7736 | option("autofocus", null); | |
| 7737 | option("direction", "ltr", function (cm, val) { return cm.doc.setDirection(val); }, true); | |
| 7738 | option("phrases", null); | |
| 7739 | } | |
| 7740 | ||
| 7741 | function guttersChanged(cm) { | |
| 7742 | updateGutters(cm); | |
| 7743 | regChange(cm); | |
| 7744 | alignHorizontally(cm); | |
| 7745 | } | |
| 7746 | ||
| 7747 | function dragDropChanged(cm, value, old) { | |
| 7748 | var wasOn = old && old != Init; | |
| 7749 | if (!value != !wasOn) { | |
| 7750 | var funcs = cm.display.dragFunctions; | |
| 7751 | var toggle = value ? on : off; | |
| 7752 | toggle(cm.display.scroller, "dragstart", funcs.start); | |
| 7753 | toggle(cm.display.scroller, "dragenter", funcs.enter); | |
| 7754 | toggle(cm.display.scroller, "dragover", funcs.over); | |
| 7755 | toggle(cm.display.scroller, "dragleave", funcs.leave); | |
| 7756 | toggle(cm.display.scroller, "drop", funcs.drop); | |
| 7757 | } | |
| 7758 | } | |
| 7759 | ||
| 7760 | function wrappingChanged(cm) { | |
| 7761 | if (cm.options.lineWrapping) { | |
| 7762 | addClass(cm.display.wrapper, "CodeMirror-wrap"); | |
| 7763 | cm.display.sizer.style.minWidth = ""; | |
| 7764 | cm.display.sizerWidth = null; | |
| 7765 | } else { | |
| 7766 | rmClass(cm.display.wrapper, "CodeMirror-wrap"); | |
| 7767 | findMaxLine(cm); | |
| 7768 | } | |
| 7769 | estimateLineHeights(cm); | |
| 7770 | regChange(cm); | |
| 7771 | clearCaches(cm); | |
| 7772 | setTimeout(function () { return updateScrollbars(cm); }, 100); | |
| 7773 | } | |
| 7774 | ||
| 7775 | // A CodeMirror instance represents an editor. This is the object | |
| 7776 | // that user code is usually dealing with. | |
| 7777 | ||
| 7778 | function CodeMirror(place, options) { | |
| 7779 | var this$1 = this; | |
| 7780 | ||
| 7781 | if (!(this instanceof CodeMirror)) { return new CodeMirror(place, options) } | |
| 7782 | ||
| 7783 | this.options = options = options ? copyObj(options) : {}; | |
| 7784 | // Determine effective options based on given values and defaults. | |
| 7785 | copyObj(defaults, options, false); | |
| 7786 | setGuttersForLineNumbers(options); | |
| 7787 | ||
| 7788 | var doc = options.value; | |
| 7789 | if (typeof doc == "string") { doc = new Doc(doc, options.mode, null, options.lineSeparator, options.direction); } | |
| 7790 | else if (options.mode) { doc.modeOption = options.mode; } | |
| 7791 | this.doc = doc; | |
| 7792 | ||
| 7793 | var input = new CodeMirror.inputStyles[options.inputStyle](this); | |
| 7794 | var display = this.display = new Display(place, doc, input); | |
| 7795 | display.wrapper.CodeMirror = this; | |
| 7796 | updateGutters(this); | |
| 7797 | themeChanged(this); | |
| 7798 | if (options.lineWrapping) | |
| 7799 | { this.display.wrapper.className += " CodeMirror-wrap"; } | |
| 7800 | initScrollbars(this); | |
| 7801 | ||
| 7802 | this.state = { | |
| 7803 | keyMaps: [], // stores maps added by addKeyMap | |
| 7804 | overlays: [], // highlighting overlays, as added by addOverlay | |
| 7805 | modeGen: 0, // bumped when mode/overlay changes, used to invalidate highlighting info | |
| 7806 | overwrite: false, | |
| 7807 | delayingBlurEvent: false, | |
| 7808 | focused: false, | |
| 7809 | suppressEdits: false, // used to disable editing during key handlers when in readOnly mode | |
| 7810 | pasteIncoming: false, cutIncoming: false, // help recognize paste/cut edits in input.poll | |
| 7811 | selectingText: false, | |
| 7812 | draggingText: false, | |
| 7813 | highlight: new Delayed(), // stores highlight worker timeout | |
| 7814 | keySeq: null, // Unfinished key sequence | |
| 7815 | specialChars: null | |
| 7816 | }; | |
| 7817 | ||
| 7818 | if (options.autofocus && !mobile) { display.input.focus(); } | |
| 7819 | ||
| 7820 | // Override magic textarea content restore that IE sometimes does | |
| 7821 | // on our hidden textarea on reload | |
| 7822 | if (ie && ie_version < 11) { setTimeout(function () { return this$1.display.input.reset(true); }, 20); } | |
| 7823 | ||
| 7824 | registerEventHandlers(this); | |
| 7825 | ensureGlobalHandlers(); | |
| 7826 | ||
| 7827 | startOperation(this); | |
| 7828 | this.curOp.forceUpdate = true; | |
| 7829 | attachDoc(this, doc); | |
| 7830 | ||
| 7831 | if ((options.autofocus && !mobile) || this.hasFocus()) | |
| 7832 | { setTimeout(bind(onFocus, this), 20); } | |
| 7833 | else | |
| 7834 | { onBlur(this); } | |
| 7835 | ||
| 7836 | for (var opt in optionHandlers) { if (optionHandlers.hasOwnProperty(opt)) | |
| 7837 | { optionHandlers[opt](this$1, options[opt], Init); } } | |
| 7838 | maybeUpdateLineNumberWidth(this); | |
| 7839 | if (options.finishInit) { options.finishInit(this); } | |
| 7840 | for (var i = 0; i < initHooks.length; ++i) { initHooks[i](this$1); } | |
| 7841 | endOperation(this); | |
| 7842 | // Suppress optimizelegibility in Webkit, since it breaks text | |
| 7843 | // measuring on line wrapping boundaries. | |
| 7844 | if (webkit && options.lineWrapping && | |
| 7845 | getComputedStyle(display.lineDiv).textRendering == "optimizelegibility") | |
| 7846 | { display.lineDiv.style.textRendering = "auto"; } | |
| 7847 | } | |
| 7848 | ||
| 7849 | // The default configuration options. | |
| 7850 | CodeMirror.defaults = defaults; | |
| 7851 | // Functions to run when options are changed. | |
| 7852 | CodeMirror.optionHandlers = optionHandlers; | |
| 7853 | ||
| 7854 | // Attach the necessary event handlers when initializing the editor | |
| 7855 | function registerEventHandlers(cm) { | |
| 7856 | var d = cm.display; | |
| 7857 | on(d.scroller, "mousedown", operation(cm, onMouseDown)); | |
| 7858 | // Older IE's will not fire a second mousedown for a double click | |
| 7859 | if (ie && ie_version < 11) | |
| 7860 | { on(d.scroller, "dblclick", operation(cm, function (e) { | |
| 7861 | if (signalDOMEvent(cm, e)) { return } | |
| 7862 | var pos = posFromMouse(cm, e); | |
| 7863 | if (!pos || clickInGutter(cm, e) || eventInWidget(cm.display, e)) { return } | |
| 7864 | e_preventDefault(e); | |
| 7865 | var word = cm.findWordAt(pos); | |
| 7866 | extendSelection(cm.doc, word.anchor, word.head); | |
| 7867 | })); } | |
| 7868 | else | |
| 7869 | { on(d.scroller, "dblclick", function (e) { return signalDOMEvent(cm, e) || e_preventDefault(e); }); } | |
| 7870 | // Some browsers fire contextmenu *after* opening the menu, at | |
| 7871 | // which point we can't mess with it anymore. Context menu is | |
| 7872 | // handled in onMouseDown for these browsers. | |
| 7873 | on(d.scroller, "contextmenu", function (e) { return onContextMenu(cm, e); }); | |
| 7874 | ||
| 7875 | // Used to suppress mouse event handling when a touch happens | |
| 7876 | var touchFinished, prevTouch = {end: 0}; | |
| 7877 | function finishTouch() { | |
| 7878 | if (d.activeTouch) { | |
| 7879 | touchFinished = setTimeout(function () { return d.activeTouch = null; }, 1000); | |
| 7880 | prevTouch = d.activeTouch; | |
| 7881 | prevTouch.end = +new Date; | |
| 7882 | } | |
| 7883 | } | |
| 7884 | function isMouseLikeTouchEvent(e) { | |
| 7885 | if (e.touches.length != 1) { return false } | |
| 7886 | var touch = e.touches[0]; | |
| 7887 | return touch.radiusX <= 1 && touch.radiusY <= 1 | |
| 7888 | } | |
| 7889 | function farAway(touch, other) { | |
| 7890 | if (other.left == null) { return true } | |
| 7891 | var dx = other.left - touch.left, dy = other.top - touch.top; | |
| 7892 | return dx * dx + dy * dy > 20 * 20 | |
| 7893 | } | |
| 7894 | on(d.scroller, "touchstart", function (e) { | |
| 7895 | if (!signalDOMEvent(cm, e) && !isMouseLikeTouchEvent(e) && !clickInGutter(cm, e)) { | |
| 7896 | d.input.ensurePolled(); | |
| 7897 | clearTimeout(touchFinished); | |
| 7898 | var now = +new Date; | |
| 7899 | d.activeTouch = {start: now, moved: false, | |
| 7900 | prev: now - prevTouch.end <= 300 ? prevTouch : null}; | |
| 7901 | if (e.touches.length == 1) { | |
| 7902 | d.activeTouch.left = e.touches[0].pageX; | |
| 7903 | d.activeTouch.top = e.touches[0].pageY; | |
| 7904 | } | |
| 7905 | } | |
| 7906 | }); | |
| 7907 | on(d.scroller, "touchmove", function () { | |
| 7908 | if (d.activeTouch) { d.activeTouch.moved = true; } | |
| 7909 | }); | |
| 7910 | on(d.scroller, "touchend", function (e) { | |
| 7911 | var touch = d.activeTouch; | |
| 7912 | if (touch && !eventInWidget(d, e) && touch.left != null && | |
| 7913 | !touch.moved && new Date - touch.start < 300) { | |
| 7914 | var pos = cm.coordsChar(d.activeTouch, "page"), range; | |
| 7915 | if (!touch.prev || farAway(touch, touch.prev)) // Single tap | |
| 7916 | { range = new Range(pos, pos); } | |
| 7917 | else if (!touch.prev.prev || farAway(touch, touch.prev.prev)) // Double tap | |
| 7918 | { range = cm.findWordAt(pos); } | |
| 7919 | else // Triple tap | |
| 7920 | { range = new Range(Pos(pos.line, 0), clipPos(cm.doc, Pos(pos.line + 1, 0))); } | |
| 7921 | cm.setSelection(range.anchor, range.head); | |
| 7922 | cm.focus(); | |
| 7923 | e_preventDefault(e); | |
| 7924 | } | |
| 7925 | finishTouch(); | |
| 7926 | }); | |
| 7927 | on(d.scroller, "touchcancel", finishTouch); | |
| 7928 | ||
| 7929 | // Sync scrolling between fake scrollbars and real scrollable | |
| 7930 | // area, ensure viewport is updated when scrolling. | |
| 7931 | on(d.scroller, "scroll", function () { | |
| 7932 | if (d.scroller.clientHeight) { | |
| 7933 | updateScrollTop(cm, d.scroller.scrollTop); | |
| 7934 | setScrollLeft(cm, d.scroller.scrollLeft, true); | |
| 7935 | signal(cm, "scroll", cm); | |
| 7936 | } | |
| 7937 | }); | |
| 7938 | ||
| 7939 | // Listen to wheel events in order to try and update the viewport on time. | |
| 7940 | on(d.scroller, "mousewheel", function (e) { return onScrollWheel(cm, e); }); | |
| 7941 | on(d.scroller, "DOMMouseScroll", function (e) { return onScrollWheel(cm, e); }); | |
| 7942 | ||
| 7943 | // Prevent wrapper from ever scrolling | |
| 7944 | on(d.wrapper, "scroll", function () { return d.wrapper.scrollTop = d.wrapper.scrollLeft = 0; }); | |
| 7945 | ||
| 7946 | d.dragFunctions = { | |
| 7947 | enter: function (e) {if (!signalDOMEvent(cm, e)) { e_stop(e); }}, | |
| 7948 | over: function (e) {if (!signalDOMEvent(cm, e)) { onDragOver(cm, e); e_stop(e); }}, | |
| 7949 | start: function (e) { return onDragStart(cm, e); }, | |
| 7950 | drop: operation(cm, onDrop), | |
| 7951 | leave: function (e) {if (!signalDOMEvent(cm, e)) { clearDragCursor(cm); }} | |
| 7952 | }; | |
| 7953 | ||
| 7954 | var inp = d.input.getField(); | |
| 7955 | on(inp, "keyup", function (e) { return onKeyUp.call(cm, e); }); | |
| 7956 | on(inp, "keydown", operation(cm, onKeyDown)); | |
| 7957 | on(inp, "keypress", operation(cm, onKeyPress)); | |
| 7958 | on(inp, "focus", function (e) { return onFocus(cm, e); }); | |
| 7959 | on(inp, "blur", function (e) { return onBlur(cm, e); }); | |
| 7960 | } | |
| 7961 | ||
| 7962 | var initHooks = []; | |
| 7963 | CodeMirror.defineInitHook = function (f) { return initHooks.push(f); }; | |
| 7964 | ||
| 7965 | // Indent the given line. The how parameter can be "smart", | |
| 7966 | // "add"/null, "subtract", or "prev". When aggressive is false | |
| 7967 | // (typically set to true for forced single-line indents), empty | |
| 7968 | // lines are not indented, and places where the mode returns Pass | |
| 7969 | // are left alone. | |
| 7970 | function indentLine(cm, n, how, aggressive) { | |
| 7971 | var doc = cm.doc, state; | |
| 7972 | if (how == null) { how = "add"; } | |
| 7973 | if (how == "smart") { | |
| 7974 | // Fall back to "prev" when the mode doesn't have an indentation | |
| 7975 | // method. | |
| 7976 | if (!doc.mode.indent) { how = "prev"; } | |
| 7977 | else { state = getContextBefore(cm, n).state; } | |
| 7978 | } | |
| 7979 | ||
| 7980 | var tabSize = cm.options.tabSize; | |
| 7981 | var line = getLine(doc, n), curSpace = countColumn(line.text, null, tabSize); | |
| 7982 | if (line.stateAfter) { line.stateAfter = null; } | |
| 7983 | var curSpaceString = line.text.match(/^\s*/)[0], indentation; | |
| 7984 | if (!aggressive && !/\S/.test(line.text)) { | |
| 7985 | indentation = 0; | |
| 7986 | how = "not"; | |
| 7987 | } else if (how == "smart") { | |
| 7988 | indentation = doc.mode.indent(state, line.text.slice(curSpaceString.length), line.text); | |
| 7989 | if (indentation == Pass || indentation > 150) { | |
| 7990 | if (!aggressive) { return } | |
| 7991 | how = "prev"; | |
| 7992 | } | |
| 7993 | } | |
| 7994 | if (how == "prev") { | |
| 7995 | if (n > doc.first) { indentation = countColumn(getLine(doc, n-1).text, null, tabSize); } | |
| 7996 | else { indentation = 0; } | |
| 7997 | } else if (how == "add") { | |
| 7998 | indentation = curSpace + cm.options.indentUnit; | |
| 7999 | } else if (how == "subtract") { | |
| 8000 | indentation = curSpace - cm.options.indentUnit; | |
| 8001 | } else if (typeof how == "number") { | |
| 8002 | indentation = curSpace + how; | |
| 8003 | } | |
| 8004 | indentation = Math.max(0, indentation); | |
| 8005 | ||
| 8006 | var indentString = "", pos = 0; | |
| 8007 | if (cm.options.indentWithTabs) | |
| 8008 | { for (var i = Math.floor(indentation / tabSize); i; --i) {pos += tabSize; indentString += "\t";} } | |
| 8009 | if (pos < indentation) { indentString += spaceStr(indentation - pos); } | |
| 8010 | ||
| 8011 | if (indentString != curSpaceString) { | |
| 8012 | replaceRange(doc, indentString, Pos(n, 0), Pos(n, curSpaceString.length), "+input"); | |
| 8013 | line.stateAfter = null; | |
| 8014 | return true | |
| 8015 | } else { | |
| 8016 | // Ensure that, if the cursor was in the whitespace at the start | |
| 8017 | // of the line, it is moved to the end of that space. | |
| 8018 | for (var i$1 = 0; i$1 < doc.sel.ranges.length; i$1++) { | |
| 8019 | var range = doc.sel.ranges[i$1]; | |
| 8020 | if (range.head.line == n && range.head.ch < curSpaceString.length) { | |
| 8021 | var pos$1 = Pos(n, curSpaceString.length); | |
| 8022 | replaceOneSelection(doc, i$1, new Range(pos$1, pos$1)); | |
| 8023 | break | |
| 8024 | } | |
| 8025 | } | |
| 8026 | } | |
| 8027 | } | |
| 8028 | ||
| 8029 | // This will be set to a {lineWise: bool, text: [string]} object, so | |
| 8030 | // that, when pasting, we know what kind of selections the copied | |
| 8031 | // text was made out of. | |
| 8032 | var lastCopied = null; | |
| 8033 | ||
| 8034 | function setLastCopied(newLastCopied) { | |
| 8035 | lastCopied = newLastCopied; | |
| 8036 | } | |
| 8037 | ||
| 8038 | function applyTextInput(cm, inserted, deleted, sel, origin) { | |
| 8039 | var doc = cm.doc; | |
| 8040 | cm.display.shift = false; | |
| 8041 | if (!sel) { sel = doc.sel; } | |
| 8042 | ||
| 8043 | var paste = cm.state.pasteIncoming || origin == "paste"; | |
| 8044 | var textLines = splitLinesAuto(inserted), multiPaste = null; | |
| 8045 | // When pasting N lines into N selections, insert one line per selection | |
| 8046 | if (paste && sel.ranges.length > 1) { | |
| 8047 | if (lastCopied && lastCopied.text.join("\n") == inserted) { | |
| 8048 | if (sel.ranges.length % lastCopied.text.length == 0) { | |
| 8049 | multiPaste = []; | |
| 8050 | for (var i = 0; i < lastCopied.text.length; i++) | |
| 8051 | { multiPaste.push(doc.splitLines(lastCopied.text[i])); } | |
| 8052 | } | |
| 8053 | } else if (textLines.length == sel.ranges.length && cm.options.pasteLinesPerSelection) { | |
| 8054 | multiPaste = map(textLines, function (l) { return [l]; }); | |
| 8055 | } | |
| 8056 | } | |
| 8057 | ||
| 8058 | var updateInput; | |
| 8059 | // Normal behavior is to insert the new text into every selection | |
| 8060 | for (var i$1 = sel.ranges.length - 1; i$1 >= 0; i$1--) { | |
| 8061 | var range$$1 = sel.ranges[i$1]; | |
| 8062 | var from = range$$1.from(), to = range$$1.to(); | |
| 8063 | if (range$$1.empty()) { | |
| 8064 | if (deleted && deleted > 0) // Handle deletion | |
| 8065 | { from = Pos(from.line, from.ch - deleted); } | |
| 8066 | else if (cm.state.overwrite && !paste) // Handle overwrite | |
| 8067 | { to = Pos(to.line, Math.min(getLine(doc, to.line).text.length, to.ch + lst(textLines).length)); } | |
| 8068 | else if (paste && lastCopied && lastCopied.lineWise && lastCopied.text.join("\n") == inserted) | |
| 8069 | { from = to = Pos(from.line, 0); } | |
| 8070 | } | |
| 8071 | updateInput = cm.curOp.updateInput; | |
| 8072 | var changeEvent = {from: from, to: to, text: multiPaste ? multiPaste[i$1 % multiPaste.length] : textLines, | |
| 8073 | origin: origin || (paste ? "paste" : cm.state.cutIncoming ? "cut" : "+input")}; | |
| 8074 | makeChange(cm.doc, changeEvent); | |
| 8075 | signalLater(cm, "inputRead", cm, changeEvent); | |
| 8076 | } | |
| 8077 | if (inserted && !paste) | |
| 8078 | { triggerElectric(cm, inserted); } | |
| 8079 | ||
| 8080 | ensureCursorVisible(cm); | |
| 8081 | cm.curOp.updateInput = updateInput; | |
| 8082 | cm.curOp.typing = true; | |
| 8083 | cm.state.pasteIncoming = cm.state.cutIncoming = false; | |
| 8084 | } | |
| 8085 | ||
| 8086 | function handlePaste(e, cm) { | |
| 8087 | var pasted = e.clipboardData && e.clipboardData.getData("Text"); | |
| 8088 | if (pasted) { | |
| 8089 | e.preventDefault(); | |
| 8090 | if (!cm.isReadOnly() && !cm.options.disableInput) | |
| 8091 | { runInOp(cm, function () { return applyTextInput(cm, pasted, 0, null, "paste"); }); } | |
| 8092 | return true | |
| 8093 | } | |
| 8094 | } | |
| 8095 | ||
| 8096 | function triggerElectric(cm, inserted) { | |
| 8097 | // When an 'electric' character is inserted, immediately trigger a reindent | |
| 8098 | if (!cm.options.electricChars || !cm.options.smartIndent) { return } | |
| 8099 | var sel = cm.doc.sel; | |
| 8100 | ||
| 8101 | for (var i = sel.ranges.length - 1; i >= 0; i--) { | |
| 8102 | var range$$1 = sel.ranges[i]; | |
| 8103 | if (range$$1.head.ch > 100 || (i && sel.ranges[i - 1].head.line == range$$1.head.line)) { continue } | |
| 8104 | var mode = cm.getModeAt(range$$1.head); | |
| 8105 | var indented = false; | |
| 8106 | if (mode.electricChars) { | |
| 8107 | for (var j = 0; j < mode.electricChars.length; j++) | |
| 8108 | { if (inserted.indexOf(mode.electricChars.charAt(j)) > -1) { | |
| 8109 | indented = indentLine(cm, range$$1.head.line, "smart"); | |
| 8110 | break | |
| 8111 | } } | |
| 8112 | } else if (mode.electricInput) { | |
| 8113 | if (mode.electricInput.test(getLine(cm.doc, range$$1.head.line).text.slice(0, range$$1.head.ch))) | |
| 8114 | { indented = indentLine(cm, range$$1.head.line, "smart"); } | |
| 8115 | } | |
| 8116 | if (indented) { signalLater(cm, "electricInput", cm, range$$1.head.line); } | |
| 8117 | } | |
| 8118 | } | |
| 8119 | ||
| 8120 | function copyableRanges(cm) { | |
| 8121 | var text = [], ranges = []; | |
| 8122 | for (var i = 0; i < cm.doc.sel.ranges.length; i++) { | |
| 8123 | var line = cm.doc.sel.ranges[i].head.line; | |
| 8124 | var lineRange = {anchor: Pos(line, 0), head: Pos(line + 1, 0)}; | |
| 8125 | ranges.push(lineRange); | |
| 8126 | text.push(cm.getRange(lineRange.anchor, lineRange.head)); | |
| 8127 | } | |
| 8128 | return {text: text, ranges: ranges} | |
| 8129 | } | |
| 8130 | ||
| 8131 | function disableBrowserMagic(field, spellcheck) { | |
| 8132 | field.setAttribute("autocorrect", "off"); | |
| 8133 | field.setAttribute("autocapitalize", "off"); | |
| 8134 | field.setAttribute("spellcheck", !!spellcheck); | |
| 8135 | } | |
| 8136 | ||
| 8137 | function hiddenTextarea() { | |
| 8138 | var te = elt("textarea", null, null, "position: absolute; bottom: -1em; padding: 0; width: 1px; height: 1em; outline: none"); | |
| 8139 | var div = elt("div", [te], null, "overflow: hidden; position: relative; width: 3px; height: 0px;"); | |
| 8140 | // The textarea is kept positioned near the cursor to prevent the | |
| 8141 | // fact that it'll be scrolled into view on input from scrolling | |
| 8142 | // our fake cursor out of view. On webkit, when wrap=off, paste is | |
| 8143 | // very slow. So make the area wide instead. | |
| 8144 | if (webkit) { te.style.width = "1000px"; } | |
| 8145 | else { te.setAttribute("wrap", "off"); } | |
| 8146 | // If border: 0; -- iOS fails to open keyboard (issue #1287) | |
| 8147 | if (ios) { te.style.border = "1px solid black"; } | |
| 8148 | disableBrowserMagic(te); | |
| 8149 | return div | |
| 8150 | } | |
| 8151 | ||
| 8152 | // The publicly visible API. Note that methodOp(f) means | |
| 8153 | // 'wrap f in an operation, performed on its `this` parameter'. | |
| 8154 | ||
| 8155 | // This is not the complete set of editor methods. Most of the | |
| 8156 | // methods defined on the Doc type are also injected into | |
| 8157 | // CodeMirror.prototype, for backwards compatibility and | |
| 8158 | // convenience. | |
| 8159 | ||
| 8160 | function addEditorMethods(CodeMirror) { | |
| 8161 | var optionHandlers = CodeMirror.optionHandlers; | |
| 8162 | ||
| 8163 | var helpers = CodeMirror.helpers = {}; | |
| 8164 | ||
| 8165 | CodeMirror.prototype = { | |
| 8166 | constructor: CodeMirror, | |
| 8167 | focus: function(){window.focus(); this.display.input.focus();}, | |
| 8168 | ||
| 8169 | setOption: function(option, value) { | |
| 8170 | var options = this.options, old = options[option]; | |
| 8171 | if (options[option] == value && option != "mode") { return } | |
| 8172 | options[option] = value; | |
| 8173 | if (optionHandlers.hasOwnProperty(option)) | |
| 8174 | { operation(this, optionHandlers[option])(this, value, old); } | |
| 8175 | signal(this, "optionChange", this, option); | |
| 8176 | }, | |
| 8177 | ||
| 8178 | getOption: function(option) {return this.options[option]}, | |
| 8179 | getDoc: function() {return this.doc}, | |
| 8180 | ||
| 8181 | addKeyMap: function(map$$1, bottom) { | |
| 8182 | this.state.keyMaps[bottom ? "push" : "unshift"](getKeyMap(map$$1)); | |
| 8183 | }, | |
| 8184 | removeKeyMap: function(map$$1) { | |
| 8185 | var maps = this.state.keyMaps; | |
| 8186 | for (var i = 0; i < maps.length; ++i) | |
| 8187 | { if (maps[i] == map$$1 || maps[i].name == map$$1) { | |
| 8188 | maps.splice(i, 1); | |
| 8189 | return true | |
| 8190 | } } | |
| 8191 | }, | |
| 8192 | ||
| 8193 | addOverlay: methodOp(function(spec, options) { | |
| 8194 | var mode = spec.token ? spec : CodeMirror.getMode(this.options, spec); | |
| 8195 | if (mode.startState) { throw new Error("Overlays may not be stateful.") } | |
| 8196 | insertSorted(this.state.overlays, | |
| 8197 | {mode: mode, modeSpec: spec, opaque: options && options.opaque, | |
| 8198 | priority: (options && options.priority) || 0}, | |
| 8199 | function (overlay) { return overlay.priority; }); | |
| 8200 | this.state.modeGen++; | |
| 8201 | regChange(this); | |
| 8202 | }), | |
| 8203 | removeOverlay: methodOp(function(spec) { | |
| 8204 | var this$1 = this; | |
| 8205 | ||
| 8206 | var overlays = this.state.overlays; | |
| 8207 | for (var i = 0; i < overlays.length; ++i) { | |
| 8208 | var cur = overlays[i].modeSpec; | |
| 8209 | if (cur == spec || typeof spec == "string" && cur.name == spec) { | |
| 8210 | overlays.splice(i, 1); | |
| 8211 | this$1.state.modeGen++; | |
| 8212 | regChange(this$1); | |
| 8213 | return | |
| 8214 | } | |
| 8215 | } | |
| 8216 | }), | |
| 8217 | ||
| 8218 | indentLine: methodOp(function(n, dir, aggressive) { | |
| 8219 | if (typeof dir != "string" && typeof dir != "number") { | |
| 8220 | if (dir == null) { dir = this.options.smartIndent ? "smart" : "prev"; } | |
| 8221 | else { dir = dir ? "add" : "subtract"; } | |
| 8222 | } | |
| 8223 | if (isLine(this.doc, n)) { indentLine(this, n, dir, aggressive); } | |
| 8224 | }), | |
| 8225 | indentSelection: methodOp(function(how) { | |
| 8226 | var this$1 = this; | |
| 8227 | ||
| 8228 | var ranges = this.doc.sel.ranges, end = -1; | |
| 8229 | for (var i = 0; i < ranges.length; i++) { | |
| 8230 | var range$$1 = ranges[i]; | |
| 8231 | if (!range$$1.empty()) { | |
| 8232 | var from = range$$1.from(), to = range$$1.to(); | |
| 8233 | var start = Math.max(end, from.line); | |
| 8234 | end = Math.min(this$1.lastLine(), to.line - (to.ch ? 0 : 1)) + 1; | |
| 8235 | for (var j = start; j < end; ++j) | |
| 8236 | { indentLine(this$1, j, how); } | |
| 8237 | var newRanges = this$1.doc.sel.ranges; | |
| 8238 | if (from.ch == 0 && ranges.length == newRanges.length && newRanges[i].from().ch > 0) | |
| 8239 | { replaceOneSelection(this$1.doc, i, new Range(from, newRanges[i].to()), sel_dontScroll); } | |
| 8240 | } else if (range$$1.head.line > end) { | |
| 8241 | indentLine(this$1, range$$1.head.line, how, true); | |
| 8242 | end = range$$1.head.line; | |
| 8243 | if (i == this$1.doc.sel.primIndex) { ensureCursorVisible(this$1); } | |
| 8244 | } | |
| 8245 | } | |
| 8246 | }), | |
| 8247 | ||
| 8248 | // Fetch the parser token for a given character. Useful for hacks | |
| 8249 | // that want to inspect the mode state (say, for completion). | |
| 8250 | getTokenAt: function(pos, precise) { | |
| 8251 | return takeToken(this, pos, precise) | |
| 8252 | }, | |
| 8253 | ||
| 8254 | getLineTokens: function(line, precise) { | |
| 8255 | return takeToken(this, Pos(line), precise, true) | |
| 8256 | }, | |
| 8257 | ||
| 8258 | getTokenTypeAt: function(pos) { | |
| 8259 | pos = clipPos(this.doc, pos); | |
| 8260 | var styles = getLineStyles(this, getLine(this.doc, pos.line)); | |
| 8261 | var before = 0, after = (styles.length - 1) / 2, ch = pos.ch; | |
| 8262 | var type; | |
| 8263 | if (ch == 0) { type = styles[2]; } | |
| 8264 | else { for (;;) { | |
| 8265 | var mid = (before + after) >> 1; | |
| 8266 | if ((mid ? styles[mid * 2 - 1] : 0) >= ch) { after = mid; } | |
| 8267 | else if (styles[mid * 2 + 1] < ch) { before = mid + 1; } | |
| 8268 | else { type = styles[mid * 2 + 2]; break } | |
| 8269 | } } | |
| 8270 | var cut = type ? type.indexOf("overlay ") : -1; | |
| 8271 | return cut < 0 ? type : cut == 0 ? null : type.slice(0, cut - 1) | |
| 8272 | }, | |
| 8273 | ||
| 8274 | getModeAt: function(pos) { | |
| 8275 | var mode = this.doc.mode; | |
| 8276 | if (!mode.innerMode) { return mode } | |
| 8277 | return CodeMirror.innerMode(mode, this.getTokenAt(pos).state).mode | |
| 8278 | }, | |
| 8279 | ||
| 8280 | getHelper: function(pos, type) { | |
| 8281 | return this.getHelpers(pos, type)[0] | |
| 8282 | }, | |
| 8283 | ||
| 8284 | getHelpers: function(pos, type) { | |
| 8285 | var this$1 = this; | |
| 8286 | ||
| 8287 | var found = []; | |
| 8288 | if (!helpers.hasOwnProperty(type)) { return found } | |
| 8289 | var help = helpers[type], mode = this.getModeAt(pos); | |
| 8290 | if (typeof mode[type] == "string") { | |
| 8291 | if (help[mode[type]]) { found.push(help[mode[type]]); } | |
| 8292 | } else if (mode[type]) { | |
| 8293 | for (var i = 0; i < mode[type].length; i++) { | |
| 8294 | var val = help[mode[type][i]]; | |
| 8295 | if (val) { found.push(val); } | |
| 8296 | } | |
| 8297 | } else if (mode.helperType && help[mode.helperType]) { | |
| 8298 | found.push(help[mode.helperType]); | |
| 8299 | } else if (help[mode.name]) { | |
| 8300 | found.push(help[mode.name]); | |
| 8301 | } | |
| 8302 | for (var i$1 = 0; i$1 < help._global.length; i$1++) { | |
| 8303 | var cur = help._global[i$1]; | |
| 8304 | if (cur.pred(mode, this$1) && indexOf(found, cur.val) == -1) | |
| 8305 | { found.push(cur.val); } | |
| 8306 | } | |
| 8307 | return found | |
| 8308 | }, | |
| 8309 | ||
| 8310 | getStateAfter: function(line, precise) { | |
| 8311 | var doc = this.doc; | |
| 8312 | line = clipLine(doc, line == null ? doc.first + doc.size - 1: line); | |
| 8313 | return getContextBefore(this, line + 1, precise).state | |
| 8314 | }, | |
| 8315 | ||
| 8316 | cursorCoords: function(start, mode) { | |
| 8317 | var pos, range$$1 = this.doc.sel.primary(); | |
| 8318 | if (start == null) { pos = range$$1.head; } | |
| 8319 | else if (typeof start == "object") { pos = clipPos(this.doc, start); } | |
| 8320 | else { pos = start ? range$$1.from() : range$$1.to(); } | |
| 8321 | return cursorCoords(this, pos, mode || "page") | |
| 8322 | }, | |
| 8323 | ||
| 8324 | charCoords: function(pos, mode) { | |
| 8325 | return charCoords(this, clipPos(this.doc, pos), mode || "page") | |
| 8326 | }, | |
| 8327 | ||
| 8328 | coordsChar: function(coords, mode) { | |
| 8329 | coords = fromCoordSystem(this, coords, mode || "page"); | |
| 8330 | return coordsChar(this, coords.left, coords.top) | |
| 8331 | }, | |
| 8332 | ||
| 8333 | lineAtHeight: function(height, mode) { | |
| 8334 | height = fromCoordSystem(this, {top: height, left: 0}, mode || "page").top; | |
| 8335 | return lineAtHeight(this.doc, height + this.display.viewOffset) | |
| 8336 | }, | |
| 8337 | heightAtLine: function(line, mode, includeWidgets) { | |
| 8338 | var end = false, lineObj; | |
| 8339 | if (typeof line == "number") { | |
| 8340 | var last = this.doc.first + this.doc.size - 1; | |
| 8341 | if (line < this.doc.first) { line = this.doc.first; } | |
| 8342 | else if (line > last) { line = last; end = true; } | |
| 8343 | lineObj = getLine(this.doc, line); | |
| 8344 | } else { | |
| 8345 | lineObj = line; | |
| 8346 | } | |
| 8347 | return intoCoordSystem(this, lineObj, {top: 0, left: 0}, mode || "page", includeWidgets || end).top + | |
| 8348 | (end ? this.doc.height - heightAtLine(lineObj) : 0) | |
| 8349 | }, | |
| 8350 | ||
| 8351 | defaultTextHeight: function() { return textHeight(this.display) }, | |
| 8352 | defaultCharWidth: function() { return charWidth(this.display) }, | |
| 8353 | ||
| 8354 | getViewport: function() { return {from: this.display.viewFrom, to: this.display.viewTo}}, | |
| 8355 | ||
| 8356 | addWidget: function(pos, node, scroll, vert, horiz) { | |
| 8357 | var display = this.display; | |
| 8358 | pos = cursorCoords(this, clipPos(this.doc, pos)); | |
| 8359 | var top = pos.bottom, left = pos.left; | |
| 8360 | node.style.position = "absolute"; | |
| 8361 | node.setAttribute("cm-ignore-events", "true"); | |
| 8362 | this.display.input.setUneditable(node); | |
| 8363 | display.sizer.appendChild(node); | |
| 8364 | if (vert == "over") { | |
| 8365 | top = pos.top; | |
| 8366 | } else if (vert == "above" || vert == "near") { | |
| 8367 | var vspace = Math.max(display.wrapper.clientHeight, this.doc.height), | |
| 8368 | hspace = Math.max(display.sizer.clientWidth, display.lineSpace.clientWidth); | |
| 8369 | // Default to positioning above (if specified and possible); otherwise default to positioning below | |
| 8370 | if ((vert == 'above' || pos.bottom + node.offsetHeight > vspace) && pos.top > node.offsetHeight) | |
| 8371 | { top = pos.top - node.offsetHeight; } | |
| 8372 | else if (pos.bottom + node.offsetHeight <= vspace) | |
| 8373 | { top = pos.bottom; } | |
| 8374 | if (left + node.offsetWidth > hspace) | |
| 8375 | { left = hspace - node.offsetWidth; } | |
| 8376 | } | |
| 8377 | node.style.top = top + "px"; | |
| 8378 | node.style.left = node.style.right = ""; | |
| 8379 | if (horiz == "right") { | |
| 8380 | left = display.sizer.clientWidth - node.offsetWidth; | |
| 8381 | node.style.right = "0px"; | |
| 8382 | } else { | |
| 8383 | if (horiz == "left") { left = 0; } | |
| 8384 | else if (horiz == "middle") { left = (display.sizer.clientWidth - node.offsetWidth) / 2; } | |
| 8385 | node.style.left = left + "px"; | |
| 8386 | } | |
| 8387 | if (scroll) | |
| 8388 | { scrollIntoView(this, {left: left, top: top, right: left + node.offsetWidth, bottom: top + node.offsetHeight}); } | |
| 8389 | }, | |
| 8390 | ||
| 8391 | triggerOnKeyDown: methodOp(onKeyDown), | |
| 8392 | triggerOnKeyPress: methodOp(onKeyPress), | |
| 8393 | triggerOnKeyUp: onKeyUp, | |
| 8394 | triggerOnMouseDown: methodOp(onMouseDown), | |
| 8395 | ||
| 8396 | execCommand: function(cmd) { | |
| 8397 | if (commands.hasOwnProperty(cmd)) | |
| 8398 | { return commands[cmd].call(null, this) } | |
| 8399 | }, | |
| 8400 | ||
| 8401 | triggerElectric: methodOp(function(text) { triggerElectric(this, text); }), | |
| 8402 | ||
| 8403 | findPosH: function(from, amount, unit, visually) { | |
| 8404 | var this$1 = this; | |
| 8405 | ||
| 8406 | var dir = 1; | |
| 8407 | if (amount < 0) { dir = -1; amount = -amount; } | |
| 8408 | var cur = clipPos(this.doc, from); | |
| 8409 | for (var i = 0; i < amount; ++i) { | |
| 8410 | cur = findPosH(this$1.doc, cur, dir, unit, visually); | |
| 8411 | if (cur.hitSide) { break } | |
| 8412 | } | |
| 8413 | return cur | |
| 8414 | }, | |
| 8415 | ||
| 8416 | moveH: methodOp(function(dir, unit) { | |
| 8417 | var this$1 = this; | |
| 8418 | ||
| 8419 | this.extendSelectionsBy(function (range$$1) { | |
| 8420 | if (this$1.display.shift || this$1.doc.extend || range$$1.empty()) | |
| 8421 | { return findPosH(this$1.doc, range$$1.head, dir, unit, this$1.options.rtlMoveVisually) } | |
| 8422 | else | |
| 8423 | { return dir < 0 ? range$$1.from() : range$$1.to() } | |
| 8424 | }, sel_move); | |
| 8425 | }), | |
| 8426 | ||
| 8427 | deleteH: methodOp(function(dir, unit) { | |
| 8428 | var sel = this.doc.sel, doc = this.doc; | |
| 8429 | if (sel.somethingSelected()) | |
| 8430 | { doc.replaceSelection("", null, "+delete"); } | |
| 8431 | else | |
| 8432 | { deleteNearSelection(this, function (range$$1) { | |
| 8433 | var other = findPosH(doc, range$$1.head, dir, unit, false); | |
| 8434 | return dir < 0 ? {from: other, to: range$$1.head} : {from: range$$1.head, to: other} | |
| 8435 | }); } | |
| 8436 | }), | |
| 8437 | ||
| 8438 | findPosV: function(from, amount, unit, goalColumn) { | |
| 8439 | var this$1 = this; | |
| 8440 | ||
| 8441 | var dir = 1, x = goalColumn; | |
| 8442 | if (amount < 0) { dir = -1; amount = -amount; } | |
| 8443 | var cur = clipPos(this.doc, from); | |
| 8444 | for (var i = 0; i < amount; ++i) { | |
| 8445 | var coords = cursorCoords(this$1, cur, "div"); | |
| 8446 | if (x == null) { x = coords.left; } | |
| 8447 | else { coords.left = x; } | |
| 8448 | cur = findPosV(this$1, coords, dir, unit); | |
| 8449 | if (cur.hitSide) { break } | |
| 8450 | } | |
| 8451 | return cur | |
| 8452 | }, | |
| 8453 | ||
| 8454 | moveV: methodOp(function(dir, unit) { | |
| 8455 | var this$1 = this; | |
| 8456 | ||
| 8457 | var doc = this.doc, goals = []; | |
| 8458 | var collapse = !this.display.shift && !doc.extend && doc.sel.somethingSelected(); | |
| 8459 | doc.extendSelectionsBy(function (range$$1) { | |
| 8460 | if (collapse) | |
| 8461 | { return dir < 0 ? range$$1.from() : range$$1.to() } | |
| 8462 | var headPos = cursorCoords(this$1, range$$1.head, "div"); | |
| 8463 | if (range$$1.goalColumn != null) { headPos.left = range$$1.goalColumn; } | |
| 8464 | goals.push(headPos.left); | |
| 8465 | var pos = findPosV(this$1, headPos, dir, unit); | |
| 8466 | if (unit == "page" && range$$1 == doc.sel.primary()) | |
| 8467 | { addToScrollTop(this$1, charCoords(this$1, pos, "div").top - headPos.top); } | |
| 8468 | return pos | |
| 8469 | }, sel_move); | |
| 8470 | if (goals.length) { for (var i = 0; i < doc.sel.ranges.length; i++) | |
| 8471 | { doc.sel.ranges[i].goalColumn = goals[i]; } } | |
| 8472 | }), | |
| 8473 | ||
| 8474 | // Find the word at the given position (as returned by coordsChar). | |
| 8475 | findWordAt: function(pos) { | |
| 8476 | var doc = this.doc, line = getLine(doc, pos.line).text; | |
| 8477 | var start = pos.ch, end = pos.ch; | |
| 8478 | if (line) { | |
| 8479 | var helper = this.getHelper(pos, "wordChars"); | |
| 8480 | if ((pos.sticky == "before" || end == line.length) && start) { --start; } else { ++end; } | |
| 8481 | var startChar = line.charAt(start); | |
| 8482 | var check = isWordChar(startChar, helper) | |
| 8483 | ? function (ch) { return isWordChar(ch, helper); } | |
| 8484 | : /\s/.test(startChar) ? function (ch) { return /\s/.test(ch); } | |
| 8485 | : function (ch) { return (!/\s/.test(ch) && !isWordChar(ch)); }; | |
| 8486 | while (start > 0 && check(line.charAt(start - 1))) { --start; } | |
| 8487 | while (end < line.length && check(line.charAt(end))) { ++end; } | |
| 8488 | } | |
| 8489 | return new Range(Pos(pos.line, start), Pos(pos.line, end)) | |
| 8490 | }, | |
| 8491 | ||
| 8492 | toggleOverwrite: function(value) { | |
| 8493 | if (value != null && value == this.state.overwrite) { return } | |
| 8494 | if (this.state.overwrite = !this.state.overwrite) | |
| 8495 | { addClass(this.display.cursorDiv, "CodeMirror-overwrite"); } | |
| 8496 | else | |
| 8497 | { rmClass(this.display.cursorDiv, "CodeMirror-overwrite"); } | |
| 8498 | ||
| 8499 | signal(this, "overwriteToggle", this, this.state.overwrite); | |
| 8500 | }, | |
| 8501 | hasFocus: function() { return this.display.input.getField() == activeElt() }, | |
| 8502 | isReadOnly: function() { return !!(this.options.readOnly || this.doc.cantEdit) }, | |
| 8503 | ||
| 8504 | scrollTo: methodOp(function (x, y) { scrollToCoords(this, x, y); }), | |
| 8505 | getScrollInfo: function() { | |
| 8506 | var scroller = this.display.scroller; | |
| 8507 | return {left: scroller.scrollLeft, top: scroller.scrollTop, | |
| 8508 | height: scroller.scrollHeight - scrollGap(this) - this.display.barHeight, | |
| 8509 | width: scroller.scrollWidth - scrollGap(this) - this.display.barWidth, | |
| 8510 | clientHeight: displayHeight(this), clientWidth: displayWidth(this)} | |
| 8511 | }, | |
| 8512 | ||
| 8513 | scrollIntoView: methodOp(function(range$$1, margin) { | |
| 8514 | if (range$$1 == null) { | |
| 8515 | range$$1 = {from: this.doc.sel.primary().head, to: null}; | |
| 8516 | if (margin == null) { margin = this.options.cursorScrollMargin; } | |
| 8517 | } else if (typeof range$$1 == "number") { | |
| 8518 | range$$1 = {from: Pos(range$$1, 0), to: null}; | |
| 8519 | } else if (range$$1.from == null) { | |
| 8520 | range$$1 = {from: range$$1, to: null}; | |
| 8521 | } | |
| 8522 | if (!range$$1.to) { range$$1.to = range$$1.from; } | |
| 8523 | range$$1.margin = margin || 0; | |
| 8524 | ||
| 8525 | if (range$$1.from.line != null) { | |
| 8526 | scrollToRange(this, range$$1); | |
| 8527 | } else { | |
| 8528 | scrollToCoordsRange(this, range$$1.from, range$$1.to, range$$1.margin); | |
| 8529 | } | |
| 8530 | }), | |
| 8531 | ||
| 8532 | setSize: methodOp(function(width, height) { | |
| 8533 | var this$1 = this; | |
| 8534 | ||
| 8535 | var interpret = function (val) { return typeof val == "number" || /^\d+$/.test(String(val)) ? val + "px" : val; }; | |
| 8536 | if (width != null) { this.display.wrapper.style.width = interpret(width); } | |
| 8537 | if (height != null) { this.display.wrapper.style.height = interpret(height); } | |
| 8538 | if (this.options.lineWrapping) { clearLineMeasurementCache(this); } | |
| 8539 | var lineNo$$1 = this.display.viewFrom; | |
| 8540 | this.doc.iter(lineNo$$1, this.display.viewTo, function (line) { | |
| 8541 | if (line.widgets) { for (var i = 0; i < line.widgets.length; i++) | |
| 8542 | { if (line.widgets[i].noHScroll) { regLineChange(this$1, lineNo$$1, "widget"); break } } } | |
| 8543 | ++lineNo$$1; | |
| 8544 | }); | |
| 8545 | this.curOp.forceUpdate = true; | |
| 8546 | signal(this, "refresh", this); | |
| 8547 | }), | |
| 8548 | ||
| 8549 | operation: function(f){return runInOp(this, f)}, | |
| 8550 | startOperation: function(){return startOperation(this)}, | |
| 8551 | endOperation: function(){return endOperation(this)}, | |
| 8552 | ||
| 8553 | refresh: methodOp(function() { | |
| 8554 | var oldHeight = this.display.cachedTextHeight; | |
| 8555 | regChange(this); | |
| 8556 | this.curOp.forceUpdate = true; | |
| 8557 | clearCaches(this); | |
| 8558 | scrollToCoords(this, this.doc.scrollLeft, this.doc.scrollTop); | |
| 8559 | updateGutterSpace(this); | |
| 8560 | if (oldHeight == null || Math.abs(oldHeight - textHeight(this.display)) > .5) | |
| 8561 | { estimateLineHeights(this); } | |
| 8562 | signal(this, "refresh", this); | |
| 8563 | }), | |
| 8564 | ||
| 8565 | swapDoc: methodOp(function(doc) { | |
| 8566 | var old = this.doc; | |
| 8567 | old.cm = null; | |
| 8568 | attachDoc(this, doc); | |
| 8569 | clearCaches(this); | |
| 8570 | this.display.input.reset(); | |
| 8571 | scrollToCoords(this, doc.scrollLeft, doc.scrollTop); | |
| 8572 | this.curOp.forceScroll = true; | |
| 8573 | signalLater(this, "swapDoc", this, old); | |
| 8574 | return old | |
| 8575 | }), | |
| 8576 | ||
| 8577 | phrase: function(phraseText) { | |
| 8578 | var phrases = this.options.phrases; | |
| 8579 | return phrases && Object.prototype.hasOwnProperty.call(phrases, phraseText) ? phrases[phraseText] : phraseText | |
| 8580 | }, | |
| 8581 | ||
| 8582 | getInputField: function(){return this.display.input.getField()}, | |
| 8583 | getWrapperElement: function(){return this.display.wrapper}, | |
| 8584 | getScrollerElement: function(){return this.display.scroller}, | |
| 8585 | getGutterElement: function(){return this.display.gutters} | |
| 8586 | }; | |
| 8587 | eventMixin(CodeMirror); | |
| 8588 | ||
| 8589 | CodeMirror.registerHelper = function(type, name, value) { | |
| 8590 | if (!helpers.hasOwnProperty(type)) { helpers[type] = CodeMirror[type] = {_global: []}; } | |
| 8591 | helpers[type][name] = value; | |
| 8592 | }; | |
| 8593 | CodeMirror.registerGlobalHelper = function(type, name, predicate, value) { | |
| 8594 | CodeMirror.registerHelper(type, name, value); | |
| 8595 | helpers[type]._global.push({pred: predicate, val: value}); | |
| 8596 | }; | |
| 8597 | } | |
| 8598 | ||
| 8599 | // Used for horizontal relative motion. Dir is -1 or 1 (left or | |
| 8600 | // right), unit can be "char", "column" (like char, but doesn't | |
| 8601 | // cross line boundaries), "word" (across next word), or "group" (to | |
| 8602 | // the start of next group of word or non-word-non-whitespace | |
| 8603 | // chars). The visually param controls whether, in right-to-left | |
| 8604 | // text, direction 1 means to move towards the next index in the | |
| 8605 | // string, or towards the character to the right of the current | |
| 8606 | // position. The resulting position will have a hitSide=true | |
| 8607 | // property if it reached the end of the document. | |
| 8608 | function findPosH(doc, pos, dir, unit, visually) { | |
| 8609 | var oldPos = pos; | |
| 8610 | var origDir = dir; | |
| 8611 | var lineObj = getLine(doc, pos.line); | |
| 8612 | function findNextLine() { | |
| 8613 | var l = pos.line + dir; | |
| 8614 | if (l < doc.first || l >= doc.first + doc.size) { return false } | |
| 8615 | pos = new Pos(l, pos.ch, pos.sticky); | |
| 8616 | return lineObj = getLine(doc, l) | |
| 8617 | } | |
| 8618 | function moveOnce(boundToLine) { | |
| 8619 | var next; | |
| 8620 | if (visually) { | |
| 8621 | next = moveVisually(doc.cm, lineObj, pos, dir); | |
| 8622 | } else { | |
| 8623 | next = moveLogically(lineObj, pos, dir); | |
| 8624 | } | |
| 8625 | if (next == null) { | |
| 8626 | if (!boundToLine && findNextLine()) | |
| 8627 | { pos = endOfLine(visually, doc.cm, lineObj, pos.line, dir); } | |
| 8628 | else | |
| 8629 | { return false } | |
| 8630 | } else { | |
| 8631 | pos = next; | |
| 8632 | } | |
| 8633 | return true | |
| 8634 | } | |
| 8635 | ||
| 8636 | if (unit == "char") { | |
| 8637 | moveOnce(); | |
| 8638 | } else if (unit == "column") { | |
| 8639 | moveOnce(true); | |
| 8640 | } else if (unit == "word" || unit == "group") { | |
| 8641 | var sawType = null, group = unit == "group"; | |
| 8642 | var helper = doc.cm && doc.cm.getHelper(pos, "wordChars"); | |
| 8643 | for (var first = true;; first = false) { | |
| 8644 | if (dir < 0 && !moveOnce(!first)) { break } | |
| 8645 | var cur = lineObj.text.charAt(pos.ch) || "\n"; | |
| 8646 | var type = isWordChar(cur, helper) ? "w" | |
| 8647 | : group && cur == "\n" ? "n" | |
| 8648 | : !group || /\s/.test(cur) ? null | |
| 8649 | : "p"; | |
| 8650 | if (group && !first && !type) { type = "s"; } | |
| 8651 | if (sawType && sawType != type) { | |
| 8652 | if (dir < 0) {dir = 1; moveOnce(); pos.sticky = "after";} | |
| 8653 | break | |
| 8654 | } | |
| 8655 | ||
| 8656 | if (type) { sawType = type; } | |
| 8657 | if (dir > 0 && !moveOnce(!first)) { break } | |
| 8658 | } | |
| 8659 | } | |
| 8660 | var result = skipAtomic(doc, pos, oldPos, origDir, true); | |
| 8661 | if (equalCursorPos(oldPos, result)) { result.hitSide = true; } | |
| 8662 | return result | |
| 8663 | } | |
| 8664 | ||
| 8665 | // For relative vertical movement. Dir may be -1 or 1. Unit can be | |
| 8666 | // "page" or "line". The resulting position will have a hitSide=true | |
| 8667 | // property if it reached the end of the document. | |
| 8668 | function findPosV(cm, pos, dir, unit) { | |
| 8669 | var doc = cm.doc, x = pos.left, y; | |
| 8670 | if (unit == "page") { | |
| 8671 | var pageSize = Math.min(cm.display.wrapper.clientHeight, window.innerHeight || document.documentElement.clientHeight); | |
| 8672 | var moveAmount = Math.max(pageSize - .5 * textHeight(cm.display), 3); | |
| 8673 | y = (dir > 0 ? pos.bottom : pos.top) + dir * moveAmount; | |
| 8674 | ||
| 8675 | } else if (unit == "line") { | |
| 8676 | y = dir > 0 ? pos.bottom + 3 : pos.top - 3; | |
| 8677 | } | |
| 8678 | var target; | |
| 8679 | for (;;) { | |
| 8680 | target = coordsChar(cm, x, y); | |
| 8681 | if (!target.outside) { break } | |
| 8682 | if (dir < 0 ? y <= 0 : y >= doc.height) { target.hitSide = true; break } | |
| 8683 | y += dir * 5; | |
| 8684 | } | |
| 8685 | return target | |
| 8686 | } | |
| 8687 | ||
| 8688 | // CONTENTEDITABLE INPUT STYLE | |
| 8689 | ||
| 8690 | var ContentEditableInput = function(cm) { | |
| 8691 | this.cm = cm; | |
| 8692 | this.lastAnchorNode = this.lastAnchorOffset = this.lastFocusNode = this.lastFocusOffset = null; | |
| 8693 | this.polling = new Delayed(); | |
| 8694 | this.composing = null; | |
| 8695 | this.gracePeriod = false; | |
| 8696 | this.readDOMTimeout = null; | |
| 8697 | }; | |
| 8698 | ||
| 8699 | ContentEditableInput.prototype.init = function (display) { | |
| 8700 | var this$1 = this; | |
| 8701 | ||
| 8702 | var input = this, cm = input.cm; | |
| 8703 | var div = input.div = display.lineDiv; | |
| 8704 | disableBrowserMagic(div, cm.options.spellcheck); | |
| 8705 | ||
| 8706 | on(div, "paste", function (e) { | |
| 8707 | if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } | |
| 8708 | // IE doesn't fire input events, so we schedule a read for the pasted content in this way | |
| 8709 | if (ie_version <= 11) { setTimeout(operation(cm, function () { return this$1.updateFromDOM(); }), 20); } | |
| 8710 | }); | |
| 8711 | ||
| 8712 | on(div, "compositionstart", function (e) { | |
| 8713 | this$1.composing = {data: e.data, done: false}; | |
| 8714 | }); | |
| 8715 | on(div, "compositionupdate", function (e) { | |
| 8716 | if (!this$1.composing) { this$1.composing = {data: e.data, done: false}; } | |
| 8717 | }); | |
| 8718 | on(div, "compositionend", function (e) { | |
| 8719 | if (this$1.composing) { | |
| 8720 | if (e.data != this$1.composing.data) { this$1.readFromDOMSoon(); } | |
| 8721 | this$1.composing.done = true; | |
| 8722 | } | |
| 8723 | }); | |
| 8724 | ||
| 8725 | on(div, "touchstart", function () { return input.forceCompositionEnd(); }); | |
| 8726 | ||
| 8727 | on(div, "input", function () { | |
| 8728 | if (!this$1.composing) { this$1.readFromDOMSoon(); } | |
| 8729 | }); | |
| 8730 | ||
| 8731 | function onCopyCut(e) { | |
| 8732 | if (signalDOMEvent(cm, e)) { return } | |
| 8733 | if (cm.somethingSelected()) { | |
| 8734 | setLastCopied({lineWise: false, text: cm.getSelections()}); | |
| 8735 | if (e.type == "cut") { cm.replaceSelection("", null, "cut"); } | |
| 8736 | } else if (!cm.options.lineWiseCopyCut) { | |
| 8737 | return | |
| 8738 | } else { | |
| 8739 | var ranges = copyableRanges(cm); | |
| 8740 | setLastCopied({lineWise: true, text: ranges.text}); | |
| 8741 | if (e.type == "cut") { | |
| 8742 | cm.operation(function () { | |
| 8743 | cm.setSelections(ranges.ranges, 0, sel_dontScroll); | |
| 8744 | cm.replaceSelection("", null, "cut"); | |
| 8745 | }); | |
| 8746 | } | |
| 8747 | } | |
| 8748 | if (e.clipboardData) { | |
| 8749 | e.clipboardData.clearData(); | |
| 8750 | var content = lastCopied.text.join("\n"); | |
| 8751 | // iOS exposes the clipboard API, but seems to discard content inserted into it | |
| 8752 | e.clipboardData.setData("Text", content); | |
| 8753 | if (e.clipboardData.getData("Text") == content) { | |
| 8754 | e.preventDefault(); | |
| 8755 | return | |
| 8756 | } | |
| 8757 | } | |
| 8758 | // Old-fashioned briefly-focus-a-textarea hack | |
| 8759 | var kludge = hiddenTextarea(), te = kludge.firstChild; | |
| 8760 | cm.display.lineSpace.insertBefore(kludge, cm.display.lineSpace.firstChild); | |
| 8761 | te.value = lastCopied.text.join("\n"); | |
| 8762 | var hadFocus = document.activeElement; | |
| 8763 | selectInput(te); | |
| 8764 | setTimeout(function () { | |
| 8765 | cm.display.lineSpace.removeChild(kludge); | |
| 8766 | hadFocus.focus(); | |
| 8767 | if (hadFocus == div) { input.showPrimarySelection(); } | |
| 8768 | }, 50); | |
| 8769 | } | |
| 8770 | on(div, "copy", onCopyCut); | |
| 8771 | on(div, "cut", onCopyCut); | |
| 8772 | }; | |
| 8773 | ||
| 8774 | ContentEditableInput.prototype.prepareSelection = function () { | |
| 8775 | var result = prepareSelection(this.cm, false); | |
| 8776 | result.focus = this.cm.state.focused; | |
| 8777 | return result | |
| 8778 | }; | |
| 8779 | ||
| 8780 | ContentEditableInput.prototype.showSelection = function (info, takeFocus) { | |
| 8781 | if (!info || !this.cm.display.view.length) { return } | |
| 8782 | if (info.focus || takeFocus) { this.showPrimarySelection(); } | |
| 8783 | this.showMultipleSelections(info); | |
| 8784 | }; | |
| 8785 | ||
| 8786 | ContentEditableInput.prototype.getSelection = function () { | |
| 8787 | return this.cm.display.wrapper.ownerDocument.getSelection() | |
| 8788 | }; | |
| 8789 | ||
| 8790 | ContentEditableInput.prototype.showPrimarySelection = function () { | |
| 8791 | var sel = this.getSelection(), cm = this.cm, prim = cm.doc.sel.primary(); | |
| 8792 | var from = prim.from(), to = prim.to(); | |
| 8793 | ||
| 8794 | if (cm.display.viewTo == cm.display.viewFrom || from.line >= cm.display.viewTo || to.line < cm.display.viewFrom) { | |
| 8795 | sel.removeAllRanges(); | |
| 8796 | return | |
| 8797 | } | |
| 8798 | ||
| 8799 | var curAnchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); | |
| 8800 | var curFocus = domToPos(cm, sel.focusNode, sel.focusOffset); | |
| 8801 | if (curAnchor && !curAnchor.bad && curFocus && !curFocus.bad && | |
| 8802 | cmp(minPos(curAnchor, curFocus), from) == 0 && | |
| 8803 | cmp(maxPos(curAnchor, curFocus), to) == 0) | |
| 8804 | { return } | |
| 8805 | ||
| 8806 | var view = cm.display.view; | |
| 8807 | var start = (from.line >= cm.display.viewFrom && posToDOM(cm, from)) || | |
| 8808 | {node: view[0].measure.map[2], offset: 0}; | |
| 8809 | var end = to.line < cm.display.viewTo && posToDOM(cm, to); | |
| 8810 | if (!end) { | |
| 8811 | var measure = view[view.length - 1].measure; | |
| 8812 | var map$$1 = measure.maps ? measure.maps[measure.maps.length - 1] : measure.map; | |
| 8813 | end = {node: map$$1[map$$1.length - 1], offset: map$$1[map$$1.length - 2] - map$$1[map$$1.length - 3]}; | |
| 8814 | } | |
| 8815 | ||
| 8816 | if (!start || !end) { | |
| 8817 | sel.removeAllRanges(); | |
| 8818 | return | |
| 8819 | } | |
| 8820 | ||
| 8821 | var old = sel.rangeCount && sel.getRangeAt(0), rng; | |
| 8822 | try { rng = range(start.node, start.offset, end.offset, end.node); } | |
| 8823 | catch(e) {} // Our model of the DOM might be outdated, in which case the range we try to set can be impossible | |
| 8824 | if (rng) { | |
| 8825 | if (!gecko && cm.state.focused) { | |
| 8826 | sel.collapse(start.node, start.offset); | |
| 8827 | if (!rng.collapsed) { | |
| 8828 | sel.removeAllRanges(); | |
| 8829 | sel.addRange(rng); | |
| 8830 | } | |
| 8831 | } else { | |
| 8832 | sel.removeAllRanges(); | |
| 8833 | sel.addRange(rng); | |
| 8834 | } | |
| 8835 | if (old && sel.anchorNode == null) { sel.addRange(old); } | |
| 8836 | else if (gecko) { this.startGracePeriod(); } | |
| 8837 | } | |
| 8838 | this.rememberSelection(); | |
| 8839 | }; | |
| 8840 | ||
| 8841 | ContentEditableInput.prototype.startGracePeriod = function () { | |
| 8842 | var this$1 = this; | |
| 8843 | ||
| 8844 | clearTimeout(this.gracePeriod); | |
| 8845 | this.gracePeriod = setTimeout(function () { | |
| 8846 | this$1.gracePeriod = false; | |
| 8847 | if (this$1.selectionChanged()) | |
| 8848 | { this$1.cm.operation(function () { return this$1.cm.curOp.selectionChanged = true; }); } | |
| 8849 | }, 20); | |
| 8850 | }; | |
| 8851 | ||
| 8852 | ContentEditableInput.prototype.showMultipleSelections = function (info) { | |
| 8853 | removeChildrenAndAdd(this.cm.display.cursorDiv, info.cursors); | |
| 8854 | removeChildrenAndAdd(this.cm.display.selectionDiv, info.selection); | |
| 8855 | }; | |
| 8856 | ||
| 8857 | ContentEditableInput.prototype.rememberSelection = function () { | |
| 8858 | var sel = this.getSelection(); | |
| 8859 | this.lastAnchorNode = sel.anchorNode; this.lastAnchorOffset = sel.anchorOffset; | |
| 8860 | this.lastFocusNode = sel.focusNode; this.lastFocusOffset = sel.focusOffset; | |
| 8861 | }; | |
| 8862 | ||
| 8863 | ContentEditableInput.prototype.selectionInEditor = function () { | |
| 8864 | var sel = this.getSelection(); | |
| 8865 | if (!sel.rangeCount) { return false } | |
| 8866 | var node = sel.getRangeAt(0).commonAncestorContainer; | |
| 8867 | return contains(this.div, node) | |
| 8868 | }; | |
| 8869 | ||
| 8870 | ContentEditableInput.prototype.focus = function () { | |
| 8871 | if (this.cm.options.readOnly != "nocursor") { | |
| 8872 | if (!this.selectionInEditor()) | |
| 8873 | { this.showSelection(this.prepareSelection(), true); } | |
| 8874 | this.div.focus(); | |
| 8875 | } | |
| 8876 | }; | |
| 8877 | ContentEditableInput.prototype.blur = function () { this.div.blur(); }; | |
| 8878 | ContentEditableInput.prototype.getField = function () { return this.div }; | |
| 8879 | ||
| 8880 | ContentEditableInput.prototype.supportsTouch = function () { return true }; | |
| 8881 | ||
| 8882 | ContentEditableInput.prototype.receivedFocus = function () { | |
| 8883 | var input = this; | |
| 8884 | if (this.selectionInEditor()) | |
| 8885 | { this.pollSelection(); } | |
| 8886 | else | |
| 8887 | { runInOp(this.cm, function () { return input.cm.curOp.selectionChanged = true; }); } | |
| 8888 | ||
| 8889 | function poll() { | |
| 8890 | if (input.cm.state.focused) { | |
| 8891 | input.pollSelection(); | |
| 8892 | input.polling.set(input.cm.options.pollInterval, poll); | |
| 8893 | } | |
| 8894 | } | |
| 8895 | this.polling.set(this.cm.options.pollInterval, poll); | |
| 8896 | }; | |
| 8897 | ||
| 8898 | ContentEditableInput.prototype.selectionChanged = function () { | |
| 8899 | var sel = this.getSelection(); | |
| 8900 | return sel.anchorNode != this.lastAnchorNode || sel.anchorOffset != this.lastAnchorOffset || | |
| 8901 | sel.focusNode != this.lastFocusNode || sel.focusOffset != this.lastFocusOffset | |
| 8902 | }; | |
| 8903 | ||
| 8904 | ContentEditableInput.prototype.pollSelection = function () { | |
| 8905 | if (this.readDOMTimeout != null || this.gracePeriod || !this.selectionChanged()) { return } | |
| 8906 | var sel = this.getSelection(), cm = this.cm; | |
| 8907 | // On Android Chrome (version 56, at least), backspacing into an | |
| 8908 | // uneditable block element will put the cursor in that element, | |
| 8909 | // and then, because it's not editable, hide the virtual keyboard. | |
| 8910 | // Because Android doesn't allow us to actually detect backspace | |
| 8911 | // presses in a sane way, this code checks for when that happens | |
| 8912 | // and simulates a backspace press in this case. | |
| 8913 | if (android && chrome && this.cm.options.gutters.length && isInGutter(sel.anchorNode)) { | |
| 8914 | this.cm.triggerOnKeyDown({type: "keydown", keyCode: 8, preventDefault: Math.abs}); | |
| 8915 | this.blur(); | |
| 8916 | this.focus(); | |
| 8917 | return | |
| 8918 | } | |
| 8919 | if (this.composing) { return } | |
| 8920 | this.rememberSelection(); | |
| 8921 | var anchor = domToPos(cm, sel.anchorNode, sel.anchorOffset); | |
| 8922 | var head = domToPos(cm, sel.focusNode, sel.focusOffset); | |
| 8923 | if (anchor && head) { runInOp(cm, function () { | |
| 8924 | setSelection(cm.doc, simpleSelection(anchor, head), sel_dontScroll); | |
| 8925 | if (anchor.bad || head.bad) { cm.curOp.selectionChanged = true; } | |
| 8926 | }); } | |
| 8927 | }; | |
| 8928 | ||
| 8929 | ContentEditableInput.prototype.pollContent = function () { | |
| 8930 | if (this.readDOMTimeout != null) { | |
| 8931 | clearTimeout(this.readDOMTimeout); | |
| 8932 | this.readDOMTimeout = null; | |
| 8933 | } | |
| 8934 | ||
| 8935 | var cm = this.cm, display = cm.display, sel = cm.doc.sel.primary(); | |
| 8936 | var from = sel.from(), to = sel.to(); | |
| 8937 | if (from.ch == 0 && from.line > cm.firstLine()) | |
| 8938 | { from = Pos(from.line - 1, getLine(cm.doc, from.line - 1).length); } | |
| 8939 | if (to.ch == getLine(cm.doc, to.line).text.length && to.line < cm.lastLine()) | |
| 8940 | { to = Pos(to.line + 1, 0); } | |
| 8941 | if (from.line < display.viewFrom || to.line > display.viewTo - 1) { return false } | |
| 8942 | ||
| 8943 | var fromIndex, fromLine, fromNode; | |
| 8944 | if (from.line == display.viewFrom || (fromIndex = findViewIndex(cm, from.line)) == 0) { | |
| 8945 | fromLine = lineNo(display.view[0].line); | |
| 8946 | fromNode = display.view[0].node; | |
| 8947 | } else { | |
| 8948 | fromLine = lineNo(display.view[fromIndex].line); | |
| 8949 | fromNode = display.view[fromIndex - 1].node.nextSibling; | |
| 8950 | } | |
| 8951 | var toIndex = findViewIndex(cm, to.line); | |
| 8952 | var toLine, toNode; | |
| 8953 | if (toIndex == display.view.length - 1) { | |
| 8954 | toLine = display.viewTo - 1; | |
| 8955 | toNode = display.lineDiv.lastChild; | |
| 8956 | } else { | |
| 8957 | toLine = lineNo(display.view[toIndex + 1].line) - 1; | |
| 8958 | toNode = display.view[toIndex + 1].node.previousSibling; | |
| 8959 | } | |
| 8960 | ||
| 8961 | if (!fromNode) { return false } | |
| 8962 | var newText = cm.doc.splitLines(domTextBetween(cm, fromNode, toNode, fromLine, toLine)); | |
| 8963 | var oldText = getBetween(cm.doc, Pos(fromLine, 0), Pos(toLine, getLine(cm.doc, toLine).text.length)); | |
| 8964 | while (newText.length > 1 && oldText.length > 1) { | |
| 8965 | if (lst(newText) == lst(oldText)) { newText.pop(); oldText.pop(); toLine--; } | |
| 8966 | else if (newText[0] == oldText[0]) { newText.shift(); oldText.shift(); fromLine++; } | |
| 8967 | else { break } | |
| 8968 | } | |
| 8969 | ||
| 8970 | var cutFront = 0, cutEnd = 0; | |
| 8971 | var newTop = newText[0], oldTop = oldText[0], maxCutFront = Math.min(newTop.length, oldTop.length); | |
| 8972 | while (cutFront < maxCutFront && newTop.charCodeAt(cutFront) == oldTop.charCodeAt(cutFront)) | |
| 8973 | { ++cutFront; } | |
| 8974 | var newBot = lst(newText), oldBot = lst(oldText); | |
| 8975 | var maxCutEnd = Math.min(newBot.length - (newText.length == 1 ? cutFront : 0), | |
| 8976 | oldBot.length - (oldText.length == 1 ? cutFront : 0)); | |
| 8977 | while (cutEnd < maxCutEnd && | |
| 8978 | newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) | |
| 8979 | { ++cutEnd; } | |
| 8980 | // Try to move start of change to start of selection if ambiguous | |
| 8981 | if (newText.length == 1 && oldText.length == 1 && fromLine == from.line) { | |
| 8982 | while (cutFront && cutFront > from.ch && | |
| 8983 | newBot.charCodeAt(newBot.length - cutEnd - 1) == oldBot.charCodeAt(oldBot.length - cutEnd - 1)) { | |
| 8984 | cutFront--; | |
| 8985 | cutEnd++; | |
| 8986 | } | |
| 8987 | } | |
| 8988 | ||
| 8989 | newText[newText.length - 1] = newBot.slice(0, newBot.length - cutEnd).replace(/^\u200b+/, ""); | |
| 8990 | newText[0] = newText[0].slice(cutFront).replace(/\u200b+$/, ""); | |
| 8991 | ||
| 8992 | var chFrom = Pos(fromLine, cutFront); | |
| 8993 | var chTo = Pos(toLine, oldText.length ? lst(oldText).length - cutEnd : 0); | |
| 8994 | if (newText.length > 1 || newText[0] || cmp(chFrom, chTo)) { | |
| 8995 | replaceRange(cm.doc, newText, chFrom, chTo, "+input"); | |
| 8996 | return true | |
| 8997 | } | |
| 8998 | }; | |
| 8999 | ||
| 9000 | ContentEditableInput.prototype.ensurePolled = function () { | |
| 9001 | this.forceCompositionEnd(); | |
| 9002 | }; | |
| 9003 | ContentEditableInput.prototype.reset = function () { | |
| 9004 | this.forceCompositionEnd(); | |
| 9005 | }; | |
| 9006 | ContentEditableInput.prototype.forceCompositionEnd = function () { | |
| 9007 | if (!this.composing) { return } | |
| 9008 | clearTimeout(this.readDOMTimeout); | |
| 9009 | this.composing = null; | |
| 9010 | this.updateFromDOM(); | |
| 9011 | this.div.blur(); | |
| 9012 | this.div.focus(); | |
| 9013 | }; | |
| 9014 | ContentEditableInput.prototype.readFromDOMSoon = function () { | |
| 9015 | var this$1 = this; | |
| 9016 | ||
| 9017 | if (this.readDOMTimeout != null) { return } | |
| 9018 | this.readDOMTimeout = setTimeout(function () { | |
| 9019 | this$1.readDOMTimeout = null; | |
| 9020 | if (this$1.composing) { | |
| 9021 | if (this$1.composing.done) { this$1.composing = null; } | |
| 9022 | else { return } | |
| 9023 | } | |
| 9024 | this$1.updateFromDOM(); | |
| 9025 | }, 80); | |
| 9026 | }; | |
| 9027 | ||
| 9028 | ContentEditableInput.prototype.updateFromDOM = function () { | |
| 9029 | var this$1 = this; | |
| 9030 | ||
| 9031 | if (this.cm.isReadOnly() || !this.pollContent()) | |
| 9032 | { runInOp(this.cm, function () { return regChange(this$1.cm); }); } | |
| 9033 | }; | |
| 9034 | ||
| 9035 | ContentEditableInput.prototype.setUneditable = function (node) { | |
| 9036 | node.contentEditable = "false"; | |
| 9037 | }; | |
| 9038 | ||
| 9039 | ContentEditableInput.prototype.onKeyPress = function (e) { | |
| 9040 | if (e.charCode == 0 || this.composing) { return } | |
| 9041 | e.preventDefault(); | |
| 9042 | if (!this.cm.isReadOnly()) | |
| 9043 | { operation(this.cm, applyTextInput)(this.cm, String.fromCharCode(e.charCode == null ? e.keyCode : e.charCode), 0); } | |
| 9044 | }; | |
| 9045 | ||
| 9046 | ContentEditableInput.prototype.readOnlyChanged = function (val) { | |
| 9047 | this.div.contentEditable = String(val != "nocursor"); | |
| 9048 | }; | |
| 9049 | ||
| 9050 | ContentEditableInput.prototype.onContextMenu = function () {}; | |
| 9051 | ContentEditableInput.prototype.resetPosition = function () {}; | |
| 9052 | ||
| 9053 | ContentEditableInput.prototype.needsContentAttribute = true; | |
| 9054 | ||
| 9055 | function posToDOM(cm, pos) { | |
| 9056 | var view = findViewForLine(cm, pos.line); | |
| 9057 | if (!view || view.hidden) { return null } | |
| 9058 | var line = getLine(cm.doc, pos.line); | |
| 9059 | var info = mapFromLineView(view, line, pos.line); | |
| 9060 | ||
| 9061 | var order = getOrder(line, cm.doc.direction), side = "left"; | |
| 9062 | if (order) { | |
| 9063 | var partPos = getBidiPartAt(order, pos.ch); | |
| 9064 | side = partPos % 2 ? "right" : "left"; | |
| 9065 | } | |
| 9066 | var result = nodeAndOffsetInLineMap(info.map, pos.ch, side); | |
| 9067 | result.offset = result.collapse == "right" ? result.end : result.start; | |
| 9068 | return result | |
| 9069 | } | |
| 9070 | ||
| 9071 | function isInGutter(node) { | |
| 9072 | for (var scan = node; scan; scan = scan.parentNode) | |
| 9073 | { if (/CodeMirror-gutter-wrapper/.test(scan.className)) { return true } } | |
| 9074 | return false | |
| 9075 | } | |
| 9076 | ||
| 9077 | function badPos(pos, bad) { if (bad) { pos.bad = true; } return pos } | |
| 9078 | ||
| 9079 | function domTextBetween(cm, from, to, fromLine, toLine) { | |
| 9080 | var text = "", closing = false, lineSep = cm.doc.lineSeparator(), extraLinebreak = false; | |
| 9081 | function recognizeMarker(id) { return function (marker) { return marker.id == id; } } | |
| 9082 | function close() { | |
| 9083 | if (closing) { | |
| 9084 | text += lineSep; | |
| 9085 | if (extraLinebreak) { text += lineSep; } | |
| 9086 | closing = extraLinebreak = false; | |
| 9087 | } | |
| 9088 | } | |
| 9089 | function addText(str) { | |
| 9090 | if (str) { | |
| 9091 | close(); | |
| 9092 | text += str; | |
| 9093 | } | |
| 9094 | } | |
| 9095 | function walk(node) { | |
| 9096 | if (node.nodeType == 1) { | |
| 9097 | var cmText = node.getAttribute("cm-text"); | |
| 9098 | if (cmText) { | |
| 9099 | addText(cmText); | |
| 9100 | return | |
| 9101 | } | |
| 9102 | var markerID = node.getAttribute("cm-marker"), range$$1; | |
| 9103 | if (markerID) { | |
| 9104 | var found = cm.findMarks(Pos(fromLine, 0), Pos(toLine + 1, 0), recognizeMarker(+markerID)); | |
| 9105 | if (found.length && (range$$1 = found[0].find(0))) | |
| 9106 | { addText(getBetween(cm.doc, range$$1.from, range$$1.to).join(lineSep)); } | |
| 9107 | return | |
| 9108 | } | |
| 9109 | if (node.getAttribute("contenteditable") == "false") { return } | |
| 9110 | var isBlock = /^(pre|div|p|li|table|br)$/i.test(node.nodeName); | |
| 9111 | if (!/^br$/i.test(node.nodeName) && node.textContent.length == 0) { return } | |
| 9112 | ||
| 9113 | if (isBlock) { close(); } | |
| 9114 | for (var i = 0; i < node.childNodes.length; i++) | |
| 9115 | { walk(node.childNodes[i]); } | |
| 9116 | ||
| 9117 | if (/^(pre|p)$/i.test(node.nodeName)) { extraLinebreak = true; } | |
| 9118 | if (isBlock) { closing = true; } | |
| 9119 | } else if (node.nodeType == 3) { | |
| 9120 | addText(node.nodeValue.replace(/\u200b/g, "").replace(/\u00a0/g, " ")); | |
| 9121 | } | |
| 9122 | } | |
| 9123 | for (;;) { | |
| 9124 | walk(from); | |
| 9125 | if (from == to) { break } | |
| 9126 | from = from.nextSibling; | |
| 9127 | extraLinebreak = false; | |
| 9128 | } | |
| 9129 | return text | |
| 9130 | } | |
| 9131 | ||
| 9132 | function domToPos(cm, node, offset) { | |
| 9133 | var lineNode; | |
| 9134 | if (node == cm.display.lineDiv) { | |
| 9135 | lineNode = cm.display.lineDiv.childNodes[offset]; | |
| 9136 | if (!lineNode) { return badPos(cm.clipPos(Pos(cm.display.viewTo - 1)), true) } | |
| 9137 | node = null; offset = 0; | |
| 9138 | } else { | |
| 9139 | for (lineNode = node;; lineNode = lineNode.parentNode) { | |
| 9140 | if (!lineNode || lineNode == cm.display.lineDiv) { return null } | |
| 9141 | if (lineNode.parentNode && lineNode.parentNode == cm.display.lineDiv) { break } | |
| 9142 | } | |
| 9143 | } | |
| 9144 | for (var i = 0; i < cm.display.view.length; i++) { | |
| 9145 | var lineView = cm.display.view[i]; | |
| 9146 | if (lineView.node == lineNode) | |
| 9147 | { return locateNodeInLineView(lineView, node, offset) } | |
| 9148 | } | |
| 9149 | } | |
| 9150 | ||
| 9151 | function locateNodeInLineView(lineView, node, offset) { | |
| 9152 | var wrapper = lineView.text.firstChild, bad = false; | |
| 9153 | if (!node || !contains(wrapper, node)) { return badPos(Pos(lineNo(lineView.line), 0), true) } | |
| 9154 | if (node == wrapper) { | |
| 9155 | bad = true; | |
| 9156 | node = wrapper.childNodes[offset]; | |
| 9157 | offset = 0; | |
| 9158 | if (!node) { | |
| 9159 | var line = lineView.rest ? lst(lineView.rest) : lineView.line; | |
| 9160 | return badPos(Pos(lineNo(line), line.text.length), bad) | |
| 9161 | } | |
| 9162 | } | |
| 9163 | ||
| 9164 | var textNode = node.nodeType == 3 ? node : null, topNode = node; | |
| 9165 | if (!textNode && node.childNodes.length == 1 && node.firstChild.nodeType == 3) { | |
| 9166 | textNode = node.firstChild; | |
| 9167 | if (offset) { offset = textNode.nodeValue.length; } | |
| 9168 | } | |
| 9169 | while (topNode.parentNode != wrapper) { topNode = topNode.parentNode; } | |
| 9170 | var measure = lineView.measure, maps = measure.maps; | |
| 9171 | ||
| 9172 | function find(textNode, topNode, offset) { | |
| 9173 | for (var i = -1; i < (maps ? maps.length : 0); i++) { | |
| 9174 | var map$$1 = i < 0 ? measure.map : maps[i]; | |
| 9175 | for (var j = 0; j < map$$1.length; j += 3) { | |
| 9176 | var curNode = map$$1[j + 2]; | |
| 9177 | if (curNode == textNode || curNode == topNode) { | |
| 9178 | var line = lineNo(i < 0 ? lineView.line : lineView.rest[i]); | |
| 9179 | var ch = map$$1[j] + offset; | |
| 9180 | if (offset < 0 || curNode != textNode) { ch = map$$1[j + (offset ? 1 : 0)]; } | |
| 9181 | return Pos(line, ch) | |
| 9182 | } | |
| 9183 | } | |
| 9184 | } | |
| 9185 | } | |
| 9186 | var found = find(textNode, topNode, offset); | |
| 9187 | if (found) { return badPos(found, bad) } | |
| 9188 | ||
| 9189 | // FIXME this is all really shaky. might handle the few cases it needs to handle, but likely to cause problems | |
| 9190 | for (var after = topNode.nextSibling, dist = textNode ? textNode.nodeValue.length - offset : 0; after; after = after.nextSibling) { | |
| 9191 | found = find(after, after.firstChild, 0); | |
| 9192 | if (found) | |
| 9193 | { return badPos(Pos(found.line, found.ch - dist), bad) } | |
| 9194 | else | |
| 9195 | { dist += after.textContent.length; } | |
| 9196 | } | |
| 9197 | for (var before = topNode.previousSibling, dist$1 = offset; before; before = before.previousSibling) { | |
| 9198 | found = find(before, before.firstChild, -1); | |
| 9199 | if (found) | |
| 9200 | { return badPos(Pos(found.line, found.ch + dist$1), bad) } | |
| 9201 | else | |
| 9202 | { dist$1 += before.textContent.length; } | |
| 9203 | } | |
| 9204 | } | |
| 9205 | ||
| 9206 | // TEXTAREA INPUT STYLE | |
| 9207 | ||
| 9208 | var TextareaInput = function(cm) { | |
| 9209 | this.cm = cm; | |
| 9210 | // See input.poll and input.reset | |
| 9211 | this.prevInput = ""; | |
| 9212 | ||
| 9213 | // Flag that indicates whether we expect input to appear real soon | |
| 9214 | // now (after some event like 'keypress' or 'input') and are | |
| 9215 | // polling intensively. | |
| 9216 | this.pollingFast = false; | |
| 9217 | // Self-resetting timeout for the poller | |
| 9218 | this.polling = new Delayed(); | |
| 9219 | // Used to work around IE issue with selection being forgotten when focus moves away from textarea | |
| 9220 | this.hasSelection = false; | |
| 9221 | this.composing = null; | |
| 9222 | }; | |
| 9223 | ||
| 9224 | TextareaInput.prototype.init = function (display) { | |
| 9225 | var this$1 = this; | |
| 9226 | ||
| 9227 | var input = this, cm = this.cm; | |
| 9228 | this.createField(display); | |
| 9229 | var te = this.textarea; | |
| 9230 | ||
| 9231 | display.wrapper.insertBefore(this.wrapper, display.wrapper.firstChild); | |
| 9232 | ||
| 9233 | // Needed to hide big blue blinking cursor on Mobile Safari (doesn't seem to work in iOS 8 anymore) | |
| 9234 | if (ios) { te.style.width = "0px"; } | |
| 9235 | ||
| 9236 | on(te, "input", function () { | |
| 9237 | if (ie && ie_version >= 9 && this$1.hasSelection) { this$1.hasSelection = null; } | |
| 9238 | input.poll(); | |
| 9239 | }); | |
| 9240 | ||
| 9241 | on(te, "paste", function (e) { | |
| 9242 | if (signalDOMEvent(cm, e) || handlePaste(e, cm)) { return } | |
| 9243 | ||
| 9244 | cm.state.pasteIncoming = true; | |
| 9245 | input.fastPoll(); | |
| 9246 | }); | |
| 9247 | ||
| 9248 | function prepareCopyCut(e) { | |
| 9249 | if (signalDOMEvent(cm, e)) { return } | |
| 9250 | if (cm.somethingSelected()) { | |
| 9251 | setLastCopied({lineWise: false, text: cm.getSelections()}); | |
| 9252 | } else if (!cm.options.lineWiseCopyCut) { | |
| 9253 | return | |
| 9254 | } else { | |
| 9255 | var ranges = copyableRanges(cm); | |
| 9256 | setLastCopied({lineWise: true, text: ranges.text}); | |
| 9257 | if (e.type == "cut") { | |
| 9258 | cm.setSelections(ranges.ranges, null, sel_dontScroll); | |
| 9259 | } else { | |
| 9260 | input.prevInput = ""; | |
| 9261 | te.value = ranges.text.join("\n"); | |
| 9262 | selectInput(te); | |
| 9263 | } | |
| 9264 | } | |
| 9265 | if (e.type == "cut") { cm.state.cutIncoming = true; } | |
| 9266 | } | |
| 9267 | on(te, "cut", prepareCopyCut); | |
| 9268 | on(te, "copy", prepareCopyCut); | |
| 9269 | ||
| 9270 | on(display.scroller, "paste", function (e) { | |
| 9271 | if (eventInWidget(display, e) || signalDOMEvent(cm, e)) { return } | |
| 9272 | cm.state.pasteIncoming = true; | |
| 9273 | input.focus(); | |
| 9274 | }); | |
| 9275 | ||
| 9276 | // Prevent normal selection in the editor (we handle our own) | |
| 9277 | on(display.lineSpace, "selectstart", function (e) { | |
| 9278 | if (!eventInWidget(display, e)) { e_preventDefault(e); } | |
| 9279 | }); | |
| 9280 | ||
| 9281 | on(te, "compositionstart", function () { | |
| 9282 | var start = cm.getCursor("from"); | |
| 9283 | if (input.composing) { input.composing.range.clear(); } | |
| 9284 | input.composing = { | |
| 9285 | start: start, | |
| 9286 | range: cm.markText(start, cm.getCursor("to"), {className: "CodeMirror-composing"}) | |
| 9287 | }; | |
| 9288 | }); | |
| 9289 | on(te, "compositionend", function () { | |
| 9290 | if (input.composing) { | |
| 9291 | input.poll(); | |
| 9292 | input.composing.range.clear(); | |
| 9293 | input.composing = null; | |
| 9294 | } | |
| 9295 | }); | |
| 9296 | }; | |
| 9297 | ||
| 9298 | TextareaInput.prototype.createField = function (_display) { | |
| 9299 | // Wraps and hides input textarea | |
| 9300 | this.wrapper = hiddenTextarea(); | |
| 9301 | // The semihidden textarea that is focused when the editor is | |
| 9302 | // focused, and receives input. | |
| 9303 | this.textarea = this.wrapper.firstChild; | |
| 9304 | }; | |
| 9305 | ||
| 9306 | TextareaInput.prototype.prepareSelection = function () { | |
| 9307 | // Redraw the selection and/or cursor | |
| 9308 | var cm = this.cm, display = cm.display, doc = cm.doc; | |
| 9309 | var result = prepareSelection(cm); | |
| 9310 | ||
| 9311 | // Move the hidden textarea near the cursor to prevent scrolling artifacts | |
| 9312 | if (cm.options.moveInputWithCursor) { | |
| 9313 | var headPos = cursorCoords(cm, doc.sel.primary().head, "div"); | |
| 9314 | var wrapOff = display.wrapper.getBoundingClientRect(), lineOff = display.lineDiv.getBoundingClientRect(); | |
| 9315 | result.teTop = Math.max(0, Math.min(display.wrapper.clientHeight - 10, | |
| 9316 | headPos.top + lineOff.top - wrapOff.top)); | |
| 9317 | result.teLeft = Math.max(0, Math.min(display.wrapper.clientWidth - 10, | |
| 9318 | headPos.left + lineOff.left - wrapOff.left)); | |
| 9319 | } | |
| 9320 | ||
| 9321 | return result | |
| 9322 | }; | |
| 9323 | ||
| 9324 | TextareaInput.prototype.showSelection = function (drawn) { | |
| 9325 | var cm = this.cm, display = cm.display; | |
| 9326 | removeChildrenAndAdd(display.cursorDiv, drawn.cursors); | |
| 9327 | removeChildrenAndAdd(display.selectionDiv, drawn.selection); | |
| 9328 | if (drawn.teTop != null) { | |
| 9329 | this.wrapper.style.top = drawn.teTop + "px"; | |
| 9330 | this.wrapper.style.left = drawn.teLeft + "px"; | |
| 9331 | } | |
| 9332 | }; | |
| 9333 | ||
| 9334 | // Reset the input to correspond to the selection (or to be empty, | |
| 9335 | // when not typing and nothing is selected) | |
| 9336 | TextareaInput.prototype.reset = function (typing) { | |
| 9337 | if (this.contextMenuPending || this.composing) { return } | |
| 9338 | var cm = this.cm; | |
| 9339 | if (cm.somethingSelected()) { | |
| 9340 | this.prevInput = ""; | |
| 9341 | var content = cm.getSelection(); | |
| 9342 | this.textarea.value = content; | |
| 9343 | if (cm.state.focused) { selectInput(this.textarea); } | |
| 9344 | if (ie && ie_version >= 9) { this.hasSelection = content; } | |
| 9345 | } else if (!typing) { | |
| 9346 | this.prevInput = this.textarea.value = ""; | |
| 9347 | if (ie && ie_version >= 9) { this.hasSelection = null; } | |
| 9348 | } | |
| 9349 | }; | |
| 9350 | ||
| 9351 | TextareaInput.prototype.getField = function () { return this.textarea }; | |
| 9352 | ||
| 9353 | TextareaInput.prototype.supportsTouch = function () { return false }; | |
| 9354 | ||
| 9355 | TextareaInput.prototype.focus = function () { | |
| 9356 | if (this.cm.options.readOnly != "nocursor" && (!mobile || activeElt() != this.textarea)) { | |
| 9357 | try { this.textarea.focus(); } | |
| 9358 | catch (e) {} // IE8 will throw if the textarea is display: none or not in DOM | |
| 9359 | } | |
| 9360 | }; | |
| 9361 | ||
| 9362 | TextareaInput.prototype.blur = function () { this.textarea.blur(); }; | |
| 9363 | ||
| 9364 | TextareaInput.prototype.resetPosition = function () { | |
| 9365 | this.wrapper.style.top = this.wrapper.style.left = 0; | |
| 9366 | }; | |
| 9367 | ||
| 9368 | TextareaInput.prototype.receivedFocus = function () { this.slowPoll(); }; | |
| 9369 | ||
| 9370 | // Poll for input changes, using the normal rate of polling. This | |
| 9371 | // runs as long as the editor is focused. | |
| 9372 | TextareaInput.prototype.slowPoll = function () { | |
| 9373 | var this$1 = this; | |
| 9374 | ||
| 9375 | if (this.pollingFast) { return } | |
| 9376 | this.polling.set(this.cm.options.pollInterval, function () { | |
| 9377 | this$1.poll(); | |
| 9378 | if (this$1.cm.state.focused) { this$1.slowPoll(); } | |
| 9379 | }); | |
| 9380 | }; | |
| 9381 | ||
| 9382 | // When an event has just come in that is likely to add or change | |
| 9383 | // something in the input textarea, we poll faster, to ensure that | |
| 9384 | // the change appears on the screen quickly. | |
| 9385 | TextareaInput.prototype.fastPoll = function () { | |
| 9386 | var missed = false, input = this; | |
| 9387 | input.pollingFast = true; | |
| 9388 | function p() { | |
| 9389 | var changed = input.poll(); | |
| 9390 | if (!changed && !missed) {missed = true; input.polling.set(60, p);} | |
| 9391 | else {input.pollingFast = false; input.slowPoll();} | |
| 9392 | } | |
| 9393 | input.polling.set(20, p); | |
| 9394 | }; | |
| 9395 | ||
| 9396 | // Read input from the textarea, and update the document to match. | |
| 9397 | // When something is selected, it is present in the textarea, and | |
| 9398 | // selected (unless it is huge, in which case a placeholder is | |
| 9399 | // used). When nothing is selected, the cursor sits after previously | |
| 9400 | // seen text (can be empty), which is stored in prevInput (we must | |
| 9401 | // not reset the textarea when typing, because that breaks IME). | |
| 9402 | TextareaInput.prototype.poll = function () { | |
| 9403 | var this$1 = this; | |
| 9404 | ||
| 9405 | var cm = this.cm, input = this.textarea, prevInput = this.prevInput; | |
| 9406 | // Since this is called a *lot*, try to bail out as cheaply as | |
| 9407 | // possible when it is clear that nothing happened. hasSelection | |
| 9408 | // will be the case when there is a lot of text in the textarea, | |
| 9409 | // in which case reading its value would be expensive. | |
| 9410 | if (this.contextMenuPending || !cm.state.focused || | |
| 9411 | (hasSelection(input) && !prevInput && !this.composing) || | |
| 9412 | cm.isReadOnly() || cm.options.disableInput || cm.state.keySeq) | |
| 9413 | { return false } | |
| 9414 | ||
| 9415 | var text = input.value; | |
| 9416 | // If nothing changed, bail. | |
| 9417 | if (text == prevInput && !cm.somethingSelected()) { return false } | |
| 9418 | // Work around nonsensical selection resetting in IE9/10, and | |
| 9419 | // inexplicable appearance of private area unicode characters on | |
| 9420 | // some key combos in Mac (#2689). | |
| 9421 | if (ie && ie_version >= 9 && this.hasSelection === text || | |
| 9422 | mac && /[\uf700-\uf7ff]/.test(text)) { | |
| 9423 | cm.display.input.reset(); | |
| 9424 | return false | |
| 9425 | } | |
| 9426 | ||
| 9427 | if (cm.doc.sel == cm.display.selForContextMenu) { | |
| 9428 | var first = text.charCodeAt(0); | |
| 9429 | if (first == 0x200b && !prevInput) { prevInput = "\u200b"; } | |
| 9430 | if (first == 0x21da) { this.reset(); return this.cm.execCommand("undo") } | |
| 9431 | } | |
| 9432 | // Find the part of the input that is actually new | |
| 9433 | var same = 0, l = Math.min(prevInput.length, text.length); | |
| 9434 | while (same < l && prevInput.charCodeAt(same) == text.charCodeAt(same)) { ++same; } | |
| 9435 | ||
| 9436 | runInOp(cm, function () { | |
| 9437 | applyTextInput(cm, text.slice(same), prevInput.length - same, | |
| 9438 | null, this$1.composing ? "*compose" : null); | |
| 9439 | ||
| 9440 | // Don't leave long text in the textarea, since it makes further polling slow | |
| 9441 | if (text.length > 1000 || text.indexOf("\n") > -1) { input.value = this$1.prevInput = ""; } | |
| 9442 | else { this$1.prevInput = text; } | |
| 9443 | ||
| 9444 | if (this$1.composing) { | |
| 9445 | this$1.composing.range.clear(); | |
| 9446 | this$1.composing.range = cm.markText(this$1.composing.start, cm.getCursor("to"), | |
| 9447 | {className: "CodeMirror-composing"}); | |
| 9448 | } | |
| 9449 | }); | |
| 9450 | return true | |
| 9451 | }; | |
| 9452 | ||
| 9453 | TextareaInput.prototype.ensurePolled = function () { | |
| 9454 | if (this.pollingFast && this.poll()) { this.pollingFast = false; } | |
| 9455 | }; | |
| 9456 | ||
| 9457 | TextareaInput.prototype.onKeyPress = function () { | |
| 9458 | if (ie && ie_version >= 9) { this.hasSelection = null; } | |
| 9459 | this.fastPoll(); | |
| 9460 | }; | |
| 9461 | ||
| 9462 | TextareaInput.prototype.onContextMenu = function (e) { | |
| 9463 | var input = this, cm = input.cm, display = cm.display, te = input.textarea; | |
| 9464 | var pos = posFromMouse(cm, e), scrollPos = display.scroller.scrollTop; | |
| 9465 | if (!pos || presto) { return } // Opera is difficult. | |
| 9466 | ||
| 9467 | // Reset the current text selection only if the click is done outside of the selection | |
| 9468 | // and 'resetSelectionOnContextMenu' option is true. | |
| 9469 | var reset = cm.options.resetSelectionOnContextMenu; | |
| 9470 | if (reset && cm.doc.sel.contains(pos) == -1) | |
| 9471 | { operation(cm, setSelection)(cm.doc, simpleSelection(pos), sel_dontScroll); } | |
| 9472 | ||
| 9473 | var oldCSS = te.style.cssText, oldWrapperCSS = input.wrapper.style.cssText; | |
| 9474 | input.wrapper.style.cssText = "position: absolute"; | |
| 9475 | var wrapperBox = input.wrapper.getBoundingClientRect(); | |
| 9476 | te.style.cssText = "position: absolute; width: 30px; height: 30px;\n top: " + (e.clientY - wrapperBox.top - 5) + "px; left: " + (e.clientX - wrapperBox.left - 5) + "px;\n z-index: 1000; background: " + (ie ? "rgba(255, 255, 255, .05)" : "transparent") + ";\n outline: none; border-width: 0; outline: none; overflow: hidden; opacity: .05; filter: alpha(opacity=5);"; | |
| 9477 | var oldScrollY; | |
| 9478 | if (webkit) { oldScrollY = window.scrollY; } // Work around Chrome issue (#2712) | |
| 9479 | display.input.focus(); | |
| 9480 | if (webkit) { window.scrollTo(null, oldScrollY); } | |
| 9481 | display.input.reset(); | |
| 9482 | // Adds "Select all" to context menu in FF | |
| 9483 | if (!cm.somethingSelected()) { te.value = input.prevInput = " "; } | |
| 9484 | input.contextMenuPending = true; | |
| 9485 | display.selForContextMenu = cm.doc.sel; | |
| 9486 | clearTimeout(display.detectingSelectAll); | |
| 9487 | ||
| 9488 | // Select-all will be greyed out if there's nothing to select, so | |
| 9489 | // this adds a zero-width space so that we can later check whether | |
| 9490 | // it got selected. | |
| 9491 | function prepareSelectAllHack() { | |
| 9492 | if (te.selectionStart != null) { | |
| 9493 | var selected = cm.somethingSelected(); | |
| 9494 | var extval = "\u200b" + (selected ? te.value : ""); | |
| 9495 | te.value = "\u21da"; // Used to catch context-menu undo | |
| 9496 | te.value = extval; | |
| 9497 | input.prevInput = selected ? "" : "\u200b"; | |
| 9498 | te.selectionStart = 1; te.selectionEnd = extval.length; | |
| 9499 | // Re-set this, in case some other handler touched the | |
| 9500 | // selection in the meantime. | |
| 9501 | display.selForContextMenu = cm.doc.sel; | |
| 9502 | } | |
| 9503 | } | |
| 9504 | function rehide() { | |
| 9505 | input.contextMenuPending = false; | |
| 9506 | input.wrapper.style.cssText = oldWrapperCSS; | |
| 9507 | te.style.cssText = oldCSS; | |
| 9508 | if (ie && ie_version < 9) { display.scrollbars.setScrollTop(display.scroller.scrollTop = scrollPos); } | |
| 9509 | ||
| 9510 | // Try to detect the user choosing select-all | |
| 9511 | if (te.selectionStart != null) { | |
| 9512 | if (!ie || (ie && ie_version < 9)) { prepareSelectAllHack(); } | |
| 9513 | var i = 0, poll = function () { | |
| 9514 | if (display.selForContextMenu == cm.doc.sel && te.selectionStart == 0 && | |
| 9515 | te.selectionEnd > 0 && input.prevInput == "\u200b") { | |
| 9516 | operation(cm, selectAll)(cm); | |
| 9517 | } else if (i++ < 10) { | |
| 9518 | display.detectingSelectAll = setTimeout(poll, 500); | |
| 9519 | } else { | |
| 9520 | display.selForContextMenu = null; | |
| 9521 | display.input.reset(); | |
| 9522 | } | |
| 9523 | }; | |
| 9524 | display.detectingSelectAll = setTimeout(poll, 200); | |
| 9525 | } | |
| 9526 | } | |
| 9527 | ||
| 9528 | if (ie && ie_version >= 9) { prepareSelectAllHack(); } | |
| 9529 | if (captureRightClick) { | |
| 9530 | e_stop(e); | |
| 9531 | var mouseup = function () { | |
| 9532 | off(window, "mouseup", mouseup); | |
| 9533 | setTimeout(rehide, 20); | |
| 9534 | }; | |
| 9535 | on(window, "mouseup", mouseup); | |
| 9536 | } else { | |
| 9537 | setTimeout(rehide, 50); | |
| 9538 | } | |
| 9539 | }; | |
| 9540 | ||
| 9541 | TextareaInput.prototype.readOnlyChanged = function (val) { | |
| 9542 | if (!val) { this.reset(); } | |
| 9543 | this.textarea.disabled = val == "nocursor"; | |
| 9544 | }; | |
| 9545 | ||
| 9546 | TextareaInput.prototype.setUneditable = function () {}; | |
| 9547 | ||
| 9548 | TextareaInput.prototype.needsContentAttribute = false; | |
| 9549 | ||
| 9550 | function fromTextArea(textarea, options) { | |
| 9551 | options = options ? copyObj(options) : {}; | |
| 9552 | options.value = textarea.value; | |
| 9553 | if (!options.tabindex && textarea.tabIndex) | |
| 9554 | { options.tabindex = textarea.tabIndex; } | |
| 9555 | if (!options.placeholder && textarea.placeholder) | |
| 9556 | { options.placeholder = textarea.placeholder; } | |
| 9557 | // Set autofocus to true if this textarea is focused, or if it has | |
| 9558 | // autofocus and no other element is focused. | |
| 9559 | if (options.autofocus == null) { | |
| 9560 | var hasFocus = activeElt(); | |
| 9561 | options.autofocus = hasFocus == textarea || | |
| 9562 | textarea.getAttribute("autofocus") != null && hasFocus == document.body; | |
| 9563 | } | |
| 9564 | ||
| 9565 | function save() {textarea.value = cm.getValue();} | |
| 9566 | ||
| 9567 | var realSubmit; | |
| 9568 | if (textarea.form) { | |
| 9569 | on(textarea.form, "submit", save); | |
| 9570 | // Deplorable hack to make the submit method do the right thing. | |
| 9571 | if (!options.leaveSubmitMethodAlone) { | |
| 9572 | var form = textarea.form; | |
| 9573 | realSubmit = form.submit; | |
| 9574 | try { | |
| 9575 | var wrappedSubmit = form.submit = function () { | |
| 9576 | save(); | |
| 9577 | form.submit = realSubmit; | |
| 9578 | form.submit(); | |
| 9579 | form.submit = wrappedSubmit; | |
| 9580 | }; | |
| 9581 | } catch(e) {} | |
| 9582 | } | |
| 9583 | } | |
| 9584 | ||
| 9585 | options.finishInit = function (cm) { | |
| 9586 | cm.save = save; | |
| 9587 | cm.getTextArea = function () { return textarea; }; | |
| 9588 | cm.toTextArea = function () { | |
| 9589 | cm.toTextArea = isNaN; // Prevent this from being ran twice | |
| 9590 | save(); | |
| 9591 | textarea.parentNode.removeChild(cm.getWrapperElement()); | |
| 9592 | textarea.style.display = ""; | |
| 9593 | if (textarea.form) { | |
| 9594 | off(textarea.form, "submit", save); | |
| 9595 | if (typeof textarea.form.submit == "function") | |
| 9596 | { textarea.form.submit = realSubmit; } | |
| 9597 | } | |
| 9598 | }; | |
| 9599 | }; | |
| 9600 | ||
| 9601 | textarea.style.display = "none"; | |
| 9602 | var cm = CodeMirror(function (node) { return textarea.parentNode.insertBefore(node, textarea.nextSibling); }, | |
| 9603 | options); | |
| 9604 | return cm | |
| 9605 | } | |
| 9606 | ||
| 9607 | function addLegacyProps(CodeMirror) { | |
| 9608 | CodeMirror.off = off; | |
| 9609 | CodeMirror.on = on; | |
| 9610 | CodeMirror.wheelEventPixels = wheelEventPixels; | |
| 9611 | CodeMirror.Doc = Doc; | |
| 9612 | CodeMirror.splitLines = splitLinesAuto; | |
| 9613 | CodeMirror.countColumn = countColumn; | |
| 9614 | CodeMirror.findColumn = findColumn; | |
| 9615 | CodeMirror.isWordChar = isWordCharBasic; | |
| 9616 | CodeMirror.Pass = Pass; | |
| 9617 | CodeMirror.signal = signal; | |
| 9618 | CodeMirror.Line = Line; | |
| 9619 | CodeMirror.changeEnd = changeEnd; | |
| 9620 | CodeMirror.scrollbarModel = scrollbarModel; | |
| 9621 | CodeMirror.Pos = Pos; | |
| 9622 | CodeMirror.cmpPos = cmp; | |
| 9623 | CodeMirror.modes = modes; | |
| 9624 | CodeMirror.mimeModes = mimeModes; | |
| 9625 | CodeMirror.resolveMode = resolveMode; | |
| 9626 | CodeMirror.getMode = getMode; | |
| 9627 | CodeMirror.modeExtensions = modeExtensions; | |
| 9628 | CodeMirror.extendMode = extendMode; | |
| 9629 | CodeMirror.copyState = copyState; | |
| 9630 | CodeMirror.startState = startState; | |
| 9631 | CodeMirror.innerMode = innerMode; | |
| 9632 | CodeMirror.commands = commands; | |
| 9633 | CodeMirror.keyMap = keyMap; | |
| 9634 | CodeMirror.keyName = keyName; | |
| 9635 | CodeMirror.isModifierKey = isModifierKey; | |
| 9636 | CodeMirror.lookupKey = lookupKey; | |
| 9637 | CodeMirror.normalizeKeyMap = normalizeKeyMap; | |
| 9638 | CodeMirror.StringStream = StringStream; | |
| 9639 | CodeMirror.SharedTextMarker = SharedTextMarker; | |
| 9640 | CodeMirror.TextMarker = TextMarker; | |
| 9641 | CodeMirror.LineWidget = LineWidget; | |
| 9642 | CodeMirror.e_preventDefault = e_preventDefault; | |
| 9643 | CodeMirror.e_stopPropagation = e_stopPropagation; | |
| 9644 | CodeMirror.e_stop = e_stop; | |
| 9645 | CodeMirror.addClass = addClass; | |
| 9646 | CodeMirror.contains = contains; | |
| 9647 | CodeMirror.rmClass = rmClass; | |
| 9648 | CodeMirror.keyNames = keyNames; | |
| 9649 | } | |
| 9650 | ||
| 9651 | // EDITOR CONSTRUCTOR | |
| 9652 | ||
| 9653 | defineOptions(CodeMirror); | |
| 9654 | ||
| 9655 | addEditorMethods(CodeMirror); | |
| 9656 | ||
| 9657 | // Set up methods on CodeMirror's prototype to redirect to the editor's document. | |
| 9658 | var dontDelegate = "iter insert remove copy getEditor constructor".split(" "); | |
| 9659 | for (var prop in Doc.prototype) { if (Doc.prototype.hasOwnProperty(prop) && indexOf(dontDelegate, prop) < 0) | |
| 9660 | { CodeMirror.prototype[prop] = (function(method) { | |
| 9661 | return function() {return method.apply(this.doc, arguments)} | |
| 9662 | })(Doc.prototype[prop]); } } | |
| 9663 | ||
| 9664 | eventMixin(Doc); | |
| 9665 | CodeMirror.inputStyles = {"textarea": TextareaInput, "contenteditable": ContentEditableInput}; | |
| 9666 | ||
| 9667 | // Extra arguments are stored as the mode's dependencies, which is | |
| 9668 | // used by (legacy) mechanisms like loadmode.js to automatically | |
| 9669 | // load a mode. (Preferred mechanism is the require/define calls.) | |
| 9670 | CodeMirror.defineMode = function(name/*, mode, …*/) { | |
| 9671 | if (!CodeMirror.defaults.mode && name != "null") { CodeMirror.defaults.mode = name; } | |
| 9672 | defineMode.apply(this, arguments); | |
| 9673 | }; | |
| 9674 | ||
| 9675 | CodeMirror.defineMIME = defineMIME; | |
| 9676 | ||
| 9677 | // Minimal default mode. | |
| 9678 | CodeMirror.defineMode("null", function () { return ({token: function (stream) { return stream.skipToEnd(); }}); }); | |
| 9679 | CodeMirror.defineMIME("text/plain", "null"); | |
| 9680 | ||
| 9681 | // EXTENSIONS | |
| 9682 | ||
| 9683 | CodeMirror.defineExtension = function (name, func) { | |
| 9684 | CodeMirror.prototype[name] = func; | |
| 9685 | }; | |
| 9686 | CodeMirror.defineDocExtension = function (name, func) { | |
| 9687 | Doc.prototype[name] = func; | |
| 9688 | }; | |
| 9689 | ||
| 9690 | CodeMirror.fromTextArea = fromTextArea; | |
| 9691 | ||
| 9692 | addLegacyProps(CodeMirror); | |
| 9693 | ||
| 9694 | CodeMirror.version = "5.41.0"; | |
| 9695 | ||
| 9696 | return CodeMirror; | |
| 9697 | ||
| 9698 | }))); | |
