| 提交 | 用户 | 时间 | ||
| 820397 | 1 | 'use strict' |
| H | 2 | |
| 3 | import { isFunction, isObject, some } from 'min-dash' | |
| 4 | ||
| 5 | // const isFunction = isFunction, | |
| 6 | // isObject = isObject, | |
| 7 | // some = some | |
| 8 | // const isFunction = require('min-dash').isFunction, | |
| 9 | // isObject = require('min-dash').isObject, | |
| 10 | // some = require('min-dash').some | |
| 11 | ||
| 12 | const WILDCARD = '*' | |
| 13 | ||
| 14 | function CamundaModdleExtension(eventBus) { | |
| 15 | // eslint-disable-next-line @typescript-eslint/no-this-alias | |
| 16 | const self = this | |
| 17 | ||
| 18 | eventBus.on('moddleCopy.canCopyProperty', function (context) { | |
| 19 | const property = context.property, | |
| 20 | parent = context.parent | |
| 21 | ||
| 22 | return self.canCopyProperty(property, parent) | |
| 23 | }) | |
| 24 | } | |
| 25 | ||
| 26 | CamundaModdleExtension.$inject = ['eventBus'] | |
| 27 | ||
| 28 | /** | |
| 29 | * Check wether to disallow copying property. | |
| 30 | */ | |
| 31 | CamundaModdleExtension.prototype.canCopyProperty = function (property, parent) { | |
| 32 | // (1) check wether property is allowed in parent | |
| 33 | if (isObject(property) && !isAllowedInParent(property, parent)) { | |
| 34 | return false | |
| 35 | } | |
| 36 | ||
| 37 | // (2) check more complex scenarios | |
| 38 | ||
| 39 | if (is(property, 'camunda:InputOutput') && !this.canHostInputOutput(parent)) { | |
| 40 | return false | |
| 41 | } | |
| 42 | ||
| 43 | if (isAny(property, ['camunda:Connector', 'camunda:Field']) && !this.canHostConnector(parent)) { | |
| 44 | return false | |
| 45 | } | |
| 46 | ||
| 47 | if (is(property, 'camunda:In') && !this.canHostIn(parent)) { | |
| 48 | return false | |
| 49 | } | |
| 50 | } | |
| 51 | ||
| 52 | CamundaModdleExtension.prototype.canHostInputOutput = function (parent) { | |
| 53 | // allowed in camunda:Connector | |
| 54 | const connector = getParent(parent, 'camunda:Connector') | |
| 55 | ||
| 56 | if (connector) { | |
| 57 | return true | |
| 58 | } | |
| 59 | ||
| 60 | // special rules inside bpmn:FlowNode | |
| 61 | const flowNode = getParent(parent, 'bpmn:FlowNode') | |
| 62 | ||
| 63 | if (!flowNode) { | |
| 64 | return false | |
| 65 | } | |
| 66 | ||
| 67 | if (isAny(flowNode, ['bpmn:StartEvent', 'bpmn:Gateway', 'bpmn:BoundaryEvent'])) { | |
| 68 | return false | |
| 69 | } | |
| 70 | ||
| 71 | return !(is(flowNode, 'bpmn:SubProcess') && flowNode.get('triggeredByEvent')) | |
| 72 | } | |
| 73 | ||
| 74 | CamundaModdleExtension.prototype.canHostConnector = function (parent) { | |
| 75 | const serviceTaskLike = getParent(parent, 'camunda:ServiceTaskLike') | |
| 76 | ||
| 77 | if (is(serviceTaskLike, 'bpmn:MessageEventDefinition')) { | |
| 78 | // only allow on throw and end events | |
| 79 | return getParent(parent, 'bpmn:IntermediateThrowEvent') || getParent(parent, 'bpmn:EndEvent') | |
| 80 | } | |
| 81 | ||
| 82 | return true | |
| 83 | } | |
| 84 | ||
| 85 | CamundaModdleExtension.prototype.canHostIn = function (parent) { | |
| 86 | const callActivity = getParent(parent, 'bpmn:CallActivity') | |
| 87 | ||
| 88 | if (callActivity) { | |
| 89 | return true | |
| 90 | } | |
| 91 | ||
| 92 | const signalEventDefinition = getParent(parent, 'bpmn:SignalEventDefinition') | |
| 93 | ||
| 94 | if (signalEventDefinition) { | |
| 95 | // only allow on throw and end events | |
| 96 | return getParent(parent, 'bpmn:IntermediateThrowEvent') || getParent(parent, 'bpmn:EndEvent') | |
| 97 | } | |
| 98 | ||
| 99 | return true | |
| 100 | } | |
| 101 | ||
| 102 | // module.exports = CamundaModdleExtension; | |
| 103 | export default CamundaModdleExtension | |
| 104 | ||
| 105 | // helpers ////////// | |
| 106 | ||
| 107 | function is(element, type) { | |
| 108 | return element && isFunction(element.$instanceOf) && element.$instanceOf(type) | |
| 109 | } | |
| 110 | ||
| 111 | function isAny(element, types) { | |
| 112 | return some(types, function (t) { | |
| 113 | return is(element, t) | |
| 114 | }) | |
| 115 | } | |
| 116 | ||
| 117 | function getParent(element, type) { | |
| 118 | if (!type) { | |
| 119 | return element.$parent | |
| 120 | } | |
| 121 | ||
| 122 | if (is(element, type)) { | |
| 123 | return element | |
| 124 | } | |
| 125 | ||
| 126 | if (!element.$parent) { | |
| 127 | return | |
| 128 | } | |
| 129 | ||
| 130 | return getParent(element.$parent, type) | |
| 131 | } | |
| 132 | ||
| 133 | function isAllowedInParent(property, parent) { | |
| 134 | // (1) find property descriptor | |
| 135 | const descriptor = property.$type && property.$model.getTypeDescriptor(property.$type) | |
| 136 | ||
| 137 | const allowedIn = descriptor && descriptor.meta && descriptor.meta.allowedIn | |
| 138 | ||
| 139 | if (!allowedIn || isWildcard(allowedIn)) { | |
| 140 | return true | |
| 141 | } | |
| 142 | ||
| 143 | // (2) check wether property has parent of allowed type | |
| 144 | return some(allowedIn, function (type) { | |
| 145 | return getParent(parent, type) | |
| 146 | }) | |
| 147 | } | |
| 148 | ||
| 149 | function isWildcard(allowedIn) { | |
| 150 | return allowedIn.indexOf(WILDCARD) !== -1 | |
| 151 | } | |
