| 提交 | 用户 | 时间 | ||
| 820397 | 1 | import { isServer } from './is' |
| H | 2 | const ieVersion = isServer ? 0 : Number((document as any).documentMode) |
| 3 | const SPECIAL_CHARS_REGEXP = /([\:\-\_]+(.))/g | |
| 4 | const MOZ_HACK_REGEXP = /^moz([A-Z])/ | |
| 5 | ||
| 6 | export interface ViewportOffsetResult { | |
| 7 | left: number | |
| 8 | top: number | |
| 9 | right: number | |
| 10 | bottom: number | |
| 11 | rightIncludeBody: number | |
| 12 | bottomIncludeBody: number | |
| 13 | } | |
| 14 | ||
| 15 | /* istanbul ignore next */ | |
| 16 | const trim = function (string: string) { | |
| 17 | return (string || '').replace(/^[\s\uFEFF]+|[\s\uFEFF]+$/g, '') | |
| 18 | } | |
| 19 | ||
| 20 | /* istanbul ignore next */ | |
| 21 | const camelCase = function (name: string) { | |
| 22 | return name | |
| 23 | .replace(SPECIAL_CHARS_REGEXP, function (_, __, letter, offset) { | |
| 24 | return offset ? letter.toUpperCase() : letter | |
| 25 | }) | |
| 26 | .replace(MOZ_HACK_REGEXP, 'Moz$1') | |
| 27 | } | |
| 28 | ||
| 29 | /* istanbul ignore next */ | |
| 30 | export function hasClass(el: Element, cls: string) { | |
| 31 | if (!el || !cls) return false | |
| 32 | if (cls.indexOf(' ') !== -1) { | |
| 33 | throw new Error('className should not contain space.') | |
| 34 | } | |
| 35 | if (el.classList) { | |
| 36 | return el.classList.contains(cls) | |
| 37 | } else { | |
| 38 | return (' ' + el.className + ' ').indexOf(' ' + cls + ' ') > -1 | |
| 39 | } | |
| 40 | } | |
| 41 | ||
| 42 | /* istanbul ignore next */ | |
| 43 | export function addClass(el: Element, cls: string) { | |
| 44 | if (!el) return | |
| 45 | let curClass = el.className | |
| 46 | const classes = (cls || '').split(' ') | |
| 47 | ||
| 48 | for (let i = 0, j = classes.length; i < j; i++) { | |
| 49 | const clsName = classes[i] | |
| 50 | if (!clsName) continue | |
| 51 | ||
| 52 | if (el.classList) { | |
| 53 | el.classList.add(clsName) | |
| 54 | } else if (!hasClass(el, clsName)) { | |
| 55 | curClass += ' ' + clsName | |
| 56 | } | |
| 57 | } | |
| 58 | if (!el.classList) { | |
| 59 | el.className = curClass | |
| 60 | } | |
| 61 | } | |
| 62 | ||
| 63 | /* istanbul ignore next */ | |
| 64 | export function removeClass(el: Element, cls: string) { | |
| 65 | if (!el || !cls) return | |
| 66 | const classes = cls.split(' ') | |
| 67 | let curClass = ' ' + el.className + ' ' | |
| 68 | ||
| 69 | for (let i = 0, j = classes.length; i < j; i++) { | |
| 70 | const clsName = classes[i] | |
| 71 | if (!clsName) continue | |
| 72 | ||
| 73 | if (el.classList) { | |
| 74 | el.classList.remove(clsName) | |
| 75 | } else if (hasClass(el, clsName)) { | |
| 76 | curClass = curClass.replace(' ' + clsName + ' ', ' ') | |
| 77 | } | |
| 78 | } | |
| 79 | if (!el.classList) { | |
| 80 | el.className = trim(curClass) | |
| 81 | } | |
| 82 | } | |
| 83 | ||
| 84 | export function getBoundingClientRect(element: Element): DOMRect | number { | |
| 85 | if (!element || !element.getBoundingClientRect) { | |
| 86 | return 0 | |
| 87 | } | |
| 88 | return element.getBoundingClientRect() | |
| 89 | } | |
| 90 | ||
| 91 | /** | |
| 92 | * 获取当前元素的left、top偏移 | |
| 93 | * left：元素最左侧距离文档左侧的距离 | |
| 94 | * top:元素最顶端距离文档顶端的距离 | |
| 95 | * right:元素最右侧距离文档右侧的距离 | |
| 96 | * bottom：元素最底端距离文档底端的距离 | |
| 97 | * rightIncludeBody：元素最左侧距离文档右侧的距离 | |
| 98 | * bottomIncludeBody：元素最底端距离文档最底部的距离 | |
| 99 | * | |
| 100 | * @description: | |
| 101 | */ | |
| 102 | export function getViewportOffset(element: Element): ViewportOffsetResult { | |
| 103 | const doc = document.documentElement | |
| 104 | ||
| 105 | const docScrollLeft = doc.scrollLeft | |
| 106 | const docScrollTop = doc.scrollTop | |
| 107 | const docClientLeft = doc.clientLeft | |
| 108 | const docClientTop = doc.clientTop | |
| 109 | ||
| 110 | const pageXOffset = window.pageXOffset | |
| 111 | const pageYOffset = window.pageYOffset | |
| 112 | ||
| 113 | const box = getBoundingClientRect(element) | |
| 114 | ||
| 115 | const { left: retLeft, top: rectTop, width: rectWidth, height: rectHeight } = box as DOMRect | |
| 116 | ||
| 117 | const scrollLeft = (pageXOffset || docScrollLeft) - (docClientLeft || 0) | |
| 118 | const scrollTop = (pageYOffset || docScrollTop) - (docClientTop || 0) | |
| 119 | const offsetLeft = retLeft + pageXOffset | |
| 120 | const offsetTop = rectTop + pageYOffset | |
| 121 | ||
| 122 | const left = offsetLeft - scrollLeft | |
| 123 | const top = offsetTop - scrollTop | |
| 124 | ||
| 125 | const clientWidth = window.document.documentElement.clientWidth | |
| 126 | const clientHeight = window.document.documentElement.clientHeight | |
| 127 | return { | |
| 128 | left: left, | |
| 129 | top: top, | |
| 130 | right: clientWidth - rectWidth - left, | |
| 131 | bottom: clientHeight - rectHeight - top, | |
| 132 | rightIncludeBody: clientWidth - left, | |
| 133 | bottomIncludeBody: clientHeight - top | |
| 134 | } | |
| 135 | } | |
| 136 | ||
| 137 | /* istanbul ignore next */ | |
| 138 | export const on = function ( | |
| 139 | element: HTMLElement | Document | Window, | |
| 140 | event: string, | |
| 141 | handler: EventListenerOrEventListenerObject | |
| 142 | ): void { | |
| 143 | if (element && event && handler) { | |
| 144 | element.addEventListener(event, handler, false) | |
| 145 | } | |
| 146 | } | |
| 147 | ||
| 148 | /* istanbul ignore next */ | |
| 149 | export const off = function ( | |
| 150 | element: HTMLElement | Document | Window, | |
| 151 | event: string, | |
| 152 | handler: any | |
| 153 | ): void { | |
| 154 | if (element && event && handler) { | |
| 155 | element.removeEventListener(event, handler, false) | |
| 156 | } | |
| 157 | } | |
| 158 | ||
| 159 | /* istanbul ignore next */ | |
| 160 | export const once = function (el: HTMLElement, event: string, fn: EventListener): void { | |
| 161 | const listener = function (this: any, ...args: unknown[]) { | |
| 162 | if (fn) { | |
| 163 | // @ts-ignore | |
| 164 | fn.apply(this, args) | |
| 165 | } | |
| 166 | off(el, event, listener) | |
| 167 | } | |
| 168 | on(el, event, listener) | |
| 169 | } | |
| 170 | ||
| 171 | /* istanbul ignore next */ | |
| 172 | export const getStyle = | |
| 173 | ieVersion < 9 | |
| 174 | ? function (element: Element | any, styleName: string) { | |
| 175 | if (isServer) return | |
| 176 | if (!element || !styleName) return null | |
| 177 | styleName = camelCase(styleName) | |
| 178 | if (styleName === 'float') { | |
| 179 | styleName = 'styleFloat' | |
| 180 | } | |
| 181 | try { | |
| 182 | switch (styleName) { | |
| 183 | case 'opacity': | |
| 184 | try { | |
| 185 | return element.filters.item('alpha').opacity / 100 | |
| 186 | } catch (e) { | |
| 187 | return 1.0 | |
| 188 | } | |
| 189 | default: | |
| 190 | return element.style[styleName] || element.currentStyle | |
| 191 | ? element.currentStyle[styleName] | |
| 192 | : null | |
| 193 | } | |
| 194 | } catch (e) { | |
| 195 | return element.style[styleName] | |
| 196 | } | |
| 197 | } | |
| 198 | : function (element: Element | any, styleName: string) { | |
| 199 | if (isServer) return | |
| 200 | if (!element || !styleName) return null | |
| 201 | styleName = camelCase(styleName) | |
| 202 | if (styleName === 'float') { | |
| 203 | styleName = 'cssFloat' | |
| 204 | } | |
| 205 | try { | |
| 206 | const computed = (document as any).defaultView.getComputedStyle(element, '') | |
| 207 | return element.style[styleName] || computed ? computed[styleName] : null | |
| 208 | } catch (e) { | |
| 209 | return element.style[styleName] | |
| 210 | } | |
| 211 | } | |
| 212 | ||
| 213 | /* istanbul ignore next */ | |
| 214 | export function setStyle(element: Element | any, styleName: any, value: any) { | |
| 215 | if (!element || !styleName) return | |
| 216 | ||
| 217 | if (typeof styleName === 'object') { | |
| 218 | for (const prop in styleName) { | |
| 219 | if (Object.prototype.hasOwnProperty.call(styleName, prop)) { | |
| 220 | setStyle(element, prop, styleName[prop]) | |
| 221 | } | |
| 222 | } | |
| 223 | } else { | |
| 224 | styleName = camelCase(styleName) | |
| 225 | if (styleName === 'opacity' && ieVersion < 9) { | |
| 226 | element.style.filter = isNaN(value) ? '' : 'alpha(opacity=' + value * 100 + ')' | |
| 227 | } else { | |
| 228 | element.style[styleName] = value | |
| 229 | } | |
| 230 | } | |
| 231 | } | |
| 232 | ||
| 233 | /* istanbul ignore next */ | |
| 234 | export const isScroll = (el: Element, vertical: any) => { | |
| 235 | if (isServer) return | |
| 236 | ||
| 237 | const determinedDirection = vertical !== null || vertical !== undefined | |
| 238 | const overflow = determinedDirection | |
| 239 | ? vertical | |
| 240 | ? getStyle(el, 'overflow-y') | |
| 241 | : getStyle(el, 'overflow-x') | |
| 242 | : getStyle(el, 'overflow') | |
| 243 | ||
| 244 | return overflow.match(/(scroll|auto)/) | |
| 245 | } | |
| 246 | ||
| 247 | /* istanbul ignore next */ | |
| 248 | export const getScrollContainer = (el: Element, vertical?: any) => { | |
| 249 | if (isServer) return | |
| 250 | ||
| 251 | let parent: any = el | |
| 252 | while (parent) { | |
| 253 | if ([window, document, document.documentElement].includes(parent)) { | |
| 254 | return window | |
| 255 | } | |
| 256 | if (isScroll(parent, vertical)) { | |
| 257 | return parent | |
| 258 | } | |
| 259 | parent = parent.parentNode | |
| 260 | } | |
| 261 | ||
| 262 | return parent | |
| 263 | } | |
| 264 | ||
| 265 | /* istanbul ignore next */ | |
| 266 | export const isInContainer = (el: Element, container: any) => { | |
| 267 | if (isServer || !el || !container) return false | |
| 268 | ||
| 269 | const elRect = el.getBoundingClientRect() | |
| 270 | let containerRect | |
| 271 | ||
| 272 | if ([window, document, document.documentElement, null, undefined].includes(container)) { | |
| 273 | containerRect = { | |
| 274 | top: 0, | |
| 275 | right: window.innerWidth, | |
| 276 | bottom: window.innerHeight, | |
| 277 | left: 0 | |
| 278 | } | |
| 279 | } else { | |
| 280 | containerRect = container.getBoundingClientRect() | |
| 281 | } | |
| 282 | ||
| 283 | return ( | |
| 284 | elRect.top < containerRect.bottom && | |
| 285 | elRect.bottom > containerRect.top && | |
| 286 | elRect.right > containerRect.left && | |
| 287 | elRect.left < containerRect.right | |
| 288 | ) | |
| 289 | } | |
