76 lines
1.6 KiB
JavaScript
76 lines
1.6 KiB
JavaScript
import inherits from 'inherits';
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import CommandInterceptor from 'diagram-js/lib/command/CommandInterceptor';
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import {
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getBusinessObject,
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is
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} from '../../../util/ModelUtil';
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import { isLabel } from '../../../util/LabelUtil';
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/**
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* BPMN specific detach event behavior
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*/
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export default function DetachEventBehavior(eventBus, bpmnReplace) {
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CommandInterceptor.call(this, eventBus);
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/**
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* replace boundary event with intermediate event when
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* detaching from a shape
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*/
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this.preExecute('elements.move', function(context) {
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var shapes = context.shapes,
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host = context.newHost,
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shape,
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eventDefinition,
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intermediateEvent,
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newShape;
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if (shapes.length !== 1) {
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return;
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}
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shape = shapes[0];
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if (!isLabel(shape) && !host && is(shape, 'bpmn:BoundaryEvent')) {
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eventDefinition = getEventDefinition(shape);
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if (eventDefinition) {
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intermediateEvent = {
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type: 'bpmn:IntermediateCatchEvent',
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eventDefinitionType: eventDefinition.$type
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};
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} else {
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intermediateEvent = {
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type: 'bpmn:IntermediateThrowEvent'
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};
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}
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newShape = bpmnReplace.replaceElement(shape, intermediateEvent);
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context.shapes = [ newShape ];
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}
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}, true);
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}
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DetachEventBehavior.$inject = [
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'eventBus',
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'bpmnReplace'
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];
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inherits(DetachEventBehavior, CommandInterceptor);
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// helper /////
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function getEventDefinition(element) {
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var bo = getBusinessObject(element);
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return bo && bo.eventDefinitions && bo.eventDefinitions[0];
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}
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