'use strict'
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import { isFunction, isObject, some } from 'min-dash'
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// const isFunction = isFunction,
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// isObject = isObject,
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// some = some
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// const isFunction = require('min-dash').isFunction,
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// isObject = require('min-dash').isObject,
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// some = require('min-dash').some
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const WILDCARD = '*'
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function CamundaModdleExtension(eventBus) {
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// eslint-disable-next-line @typescript-eslint/no-this-alias
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const self = this
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eventBus.on('moddleCopy.canCopyProperty', function (context) {
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const property = context.property,
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parent = context.parent
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return self.canCopyProperty(property, parent)
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})
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}
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CamundaModdleExtension.$inject = ['eventBus']
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/**
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* Check wether to disallow copying property.
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*/
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CamundaModdleExtension.prototype.canCopyProperty = function (property, parent) {
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// (1) check wether property is allowed in parent
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if (isObject(property) && !isAllowedInParent(property, parent)) {
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return false
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}
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// (2) check more complex scenarios
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if (is(property, 'camunda:InputOutput') && !this.canHostInputOutput(parent)) {
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return false
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}
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if (isAny(property, ['camunda:Connector', 'camunda:Field']) && !this.canHostConnector(parent)) {
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return false
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}
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if (is(property, 'camunda:In') && !this.canHostIn(parent)) {
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return false
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}
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}
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CamundaModdleExtension.prototype.canHostInputOutput = function (parent) {
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// allowed in camunda:Connector
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const connector = getParent(parent, 'camunda:Connector')
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if (connector) {
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return true
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}
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// special rules inside bpmn:FlowNode
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const flowNode = getParent(parent, 'bpmn:FlowNode')
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if (!flowNode) {
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return false
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}
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if (isAny(flowNode, ['bpmn:StartEvent', 'bpmn:Gateway', 'bpmn:BoundaryEvent'])) {
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return false
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}
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return !(is(flowNode, 'bpmn:SubProcess') && flowNode.get('triggeredByEvent'))
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}
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CamundaModdleExtension.prototype.canHostConnector = function (parent) {
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const serviceTaskLike = getParent(parent, 'camunda:ServiceTaskLike')
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if (is(serviceTaskLike, 'bpmn:MessageEventDefinition')) {
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// only allow on throw and end events
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return getParent(parent, 'bpmn:IntermediateThrowEvent') || getParent(parent, 'bpmn:EndEvent')
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}
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return true
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}
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CamundaModdleExtension.prototype.canHostIn = function (parent) {
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const callActivity = getParent(parent, 'bpmn:CallActivity')
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if (callActivity) {
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return true
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}
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const signalEventDefinition = getParent(parent, 'bpmn:SignalEventDefinition')
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if (signalEventDefinition) {
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// only allow on throw and end events
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return getParent(parent, 'bpmn:IntermediateThrowEvent') || getParent(parent, 'bpmn:EndEvent')
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}
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return true
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}
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// module.exports = CamundaModdleExtension;
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export default CamundaModdleExtension
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// helpers //////////
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function is(element, type) {
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return element && isFunction(element.$instanceOf) && element.$instanceOf(type)
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}
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function isAny(element, types) {
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return some(types, function (t) {
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return is(element, t)
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})
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}
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function getParent(element, type) {
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if (!type) {
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return element.$parent
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}
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if (is(element, type)) {
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return element
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}
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if (!element.$parent) {
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return
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}
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return getParent(element.$parent, type)
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}
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function isAllowedInParent(property, parent) {
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// (1) find property descriptor
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const descriptor = property.$type && property.$model.getTypeDescriptor(property.$type)
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const allowedIn = descriptor && descriptor.meta && descriptor.meta.allowedIn
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if (!allowedIn || isWildcard(allowedIn)) {
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return true
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}
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// (2) check wether property has parent of allowed type
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return some(allowedIn, function (type) {
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return getParent(parent, type)
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})
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}
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function isWildcard(allowedIn) {
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return allowedIn.indexOf(WILDCARD) !== -1
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}
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