55 lines
1.3 KiB
JavaScript
55 lines
1.3 KiB
JavaScript
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'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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getBusinessObject = require('../../../util/ModelUtil').getBusinessObject;
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/**
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* A behavior that unsets the Default property of
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* sequence flow source on element delete, if the
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* removed element is the Gateway or Task's default flow.
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*
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* @param {EventBus} eventBus
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* @param {Modeling} modeling
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*/
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function DeleteSequenceFlowBehavior(eventBus, modeling) {
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CommandInterceptor.call(this, eventBus);
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this.preExecute('connection.delete', function(event) {
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var context = event.context,
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connection = context.connection,
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source = connection.source;
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if (isDefaultFlow(connection, source)) {
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modeling.updateProperties(source, {
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'default': null
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});
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}
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});
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}
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inherits(DeleteSequenceFlowBehavior, CommandInterceptor);
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DeleteSequenceFlowBehavior.$inject = [ 'eventBus', 'modeling' ];
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module.exports = DeleteSequenceFlowBehavior;
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/////// helpers ///////////////////////////
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function isDefaultFlow(connection, source) {
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if (!is(connection, 'bpmn:SequenceFlow')) {
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return false;
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}
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var sourceBo = getBusinessObject(source),
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sequenceFlow = getBusinessObject(connection);
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return sourceBo.get('default') === sequenceFlow;
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}
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