80 lines
1.9 KiB
JavaScript
80 lines
1.9 KiB
JavaScript
'use strict';
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var assign = require('lodash/object/assign'),
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inherits = require('inherits');
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var LabelUtil = require('../../util/LabelUtil'),
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is = require('../../util/ModelUtil').is;
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var hasExternalLabel = LabelUtil.hasExternalLabel,
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getExternalLabelMid = LabelUtil.getExternalLabelMid;
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var CommandInterceptor = require('diagram-js/lib/command/CommandInterceptor');
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function LabelSupport(eventBus, modeling, bpmnFactory) {
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CommandInterceptor.call(this, eventBus);
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// create external labels on shape creation
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this.postExecute([ 'shape.create', 'connection.create' ], function(e) {
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var context = e.context;
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var element = context.shape || context.connection,
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businessObject = element.businessObject;
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var position;
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if (hasExternalLabel(businessObject)) {
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position = getExternalLabelMid(element);
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modeling.createLabel(element, position, {
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id: businessObject.id + '_label',
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hidden: !businessObject.name,
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businessObject: businessObject
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});
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}
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});
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// update di information on label movement and creation
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this.executed([ 'label.create', 'shape.moved' ], function(e) {
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var element = e.context.shape,
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businessObject,
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di;
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// we want to trigger on real labels only
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if (!element.labelTarget) {
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return;
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}
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// we want to trigger on BPMN elements only
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if (!is(element.labelTarget || element, 'bpmn:BaseElement')) {
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return;
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}
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businessObject = element.businessObject,
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di = businessObject.di;
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if (!di.label) {
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di.label = bpmnFactory.create('bpmndi:BPMNLabel', {
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bounds: bpmnFactory.create('dc:Bounds')
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});
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}
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assign(di.label.bounds, {
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x: element.x,
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y: element.y,
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width: element.width,
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height: element.height
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});
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});
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}
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inherits(LabelSupport, CommandInterceptor);
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LabelSupport.$inject = [ 'eventBus', 'modeling', 'bpmnFactory' ];
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module.exports = LabelSupport;
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