57 lines
1.2 KiB
JavaScript
57 lines
1.2 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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/**
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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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export default 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 = [
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'eventBus',
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'modeling'
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];
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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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} |