51 lines
1.1 KiB
JavaScript
51 lines
1.1 KiB
JavaScript
'use strict';
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var inherits = require('inherits');
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var CommandInterceptor = require('diagram-js/lib/command/CommandInterceptor');
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var is = require('../../../util/ModelUtil').is;
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/**
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* BPMN specific remove behavior
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*/
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function RemoveBehavior(eventBus, modeling) {
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CommandInterceptor.call(this, eventBus);
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/**
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* morph collaboration diagram into process diagram
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* after the last participant has been removed
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*/
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this.preExecute('shape.delete', function(context) {
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var shape = context.shape,
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parent = shape.parent;
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// activate the behavior if the shape to be removed
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// is a participant
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if (is(shape, 'bpmn:Participant')) {
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context.collaborationRoot = parent;
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}
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}, true);
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this.postExecute('shape.delete', function(context) {
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var collaborationRoot = context.collaborationRoot;
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if (collaborationRoot && !collaborationRoot.businessObject.participants.length) {
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// replace empty collaboration with process diagram
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modeling.makeProcess();
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}
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}, true);
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}
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RemoveBehavior.$inject = [ 'eventBus', 'modeling' ];
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inherits(RemoveBehavior, CommandInterceptor);
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module.exports = RemoveBehavior; |