90 lines
2.3 KiB
JavaScript
90 lines
2.3 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 create participant behavior
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*/
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function CreateParticipantBehavior(eventBus, modeling, elementFactory, bpmnFactory) {
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CommandInterceptor.call(this, eventBus);
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/**
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* morph process into collaboration before adding
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* participant onto collaboration
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*/
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this.preExecute('shape.create', function(context) {
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var parent = context.parent,
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shape = context.shape,
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position = context.position;
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if (is(parent, 'bpmn:Process') && is(shape, 'bpmn:Participant')) {
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// this is going to detach the process root
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// and set the returned collaboration element
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// as the new root element
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var collaborationElement = modeling.makeCollaboration();
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// monkey patch the create context
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// so that the participant is being dropped
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// onto the new collaboration root instead
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context.position = position;
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context.parent = collaborationElement;
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context.processRoot = parent;
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}
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}, true);
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this.execute('shape.create', function(context) {
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var processRoot = context.processRoot,
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shape = context.shape;
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if (processRoot) {
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context.oldProcessRef = shape.businessObject.processRef;
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// assign the participant processRef
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shape.businessObject.processRef = processRoot.businessObject;
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}
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}, true);
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this.revert('shape.create', function(context) {
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var processRoot = context.processRoot,
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shape = context.shape;
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if (processRoot) {
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// assign the participant processRef
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shape.businessObject.processRef = context.oldProcessRef;
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}
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}, true);
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this.postExecute('shape.create', function(context) {
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var processRoot = context.processRoot,
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shape = context.shape;
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if (processRoot) {
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// process root is already detached at this point
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var processChildren = processRoot.children.slice();
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modeling.moveElements(processChildren, { x: 0, y: 0 }, shape);
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}
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}, true);
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}
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CreateParticipantBehavior.$inject = [ 'eventBus', 'modeling', 'elementFactory', 'bpmnFactory' ];
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inherits(CreateParticipantBehavior, CommandInterceptor);
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module.exports = CreateParticipantBehavior;
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