114 lines
2.6 KiB
JavaScript
114 lines
2.6 KiB
JavaScript
'use strict';
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var _ = require('lodash');
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var BpmnModdle = require('bpmn-moddle');
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var Collections = require('diagram-js/lib/util/Collections');
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function BpmnFactory() {
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this._model = BpmnModdle.instance();
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this._uuid = 1;
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}
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BpmnFactory.$inject = [ ];
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BpmnFactory.prototype._needsId = function(element) {
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return element.$instanceOf('bpmn:RootElement') ||
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element.$instanceOf('bpmn:FlowElement') ||
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element.$instanceOf('bpmn:Artifact') ||
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element.$instanceOf('bpmndi:BPMNShape') ||
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element.$instanceOf('bpmndi:BPMNEdge') ||
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element.$instanceOf('bpmndi:BPMNDiagram') ||
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element.$instanceOf('bpmndi:BPMNPlane');
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};
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BpmnFactory.prototype._ensureId = function(element) {
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if (!element.id && this._needsId(element)) {
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element.id = '' + (++this._uuid);
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}
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};
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BpmnFactory.prototype.create = function(type, attrs) {
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var element = this._model.create(type, attrs || {});
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this._ensureId(element);
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return element;
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};
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BpmnFactory.prototype.createDiShape = function(semantic, position, attrs) {
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position = position || { x: 0, y: 0 };
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var bounds;
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if (semantic.$instanceOf('bpmn:Task')) {
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bounds = { width: 100, height: 80 };
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} else {
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bounds = { width: 36, height: 36 };
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}
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_.extend(bounds, {
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x: (position.x || 0) - bounds.width / 2,
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y: (position.y || 0) - bounds.height / 2
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});
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return this.create('bpmndi:BPMNShape', _.extend({
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bpmnElement: semantic,
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bounds: this.createDiBounds(bounds)
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}, attrs));
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};
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BpmnFactory.prototype.createDiBounds = function(bounds) {
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return this.create('dc:Bounds', bounds);
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};
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BpmnFactory.prototype.createDiWaypoint = function(point) {
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return this.create('dc:Point', point);
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};
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BpmnFactory.prototype.createDiEdge = function(sequenceFlow, points, attrs) {
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var waypoints = _.map(points, function(pos) {
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return this.createDiWaypoint(pos);
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}, this);
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return this.create('bpmndi:BPMNEdge', _.extend({
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bpmnElement: sequenceFlow,
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waypoint: waypoints
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}, attrs));
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};
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BpmnFactory.prototype.disconnectSequenceFlow = function(sequenceFlow) {
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Collections.remove(sequenceFlow.sourceRef && sequenceFlow.sourceRef.get('outgoing'), sequenceFlow);
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Collections.remove(sequenceFlow.targetRef && sequenceFlow.targetRef.get('incoming'), sequenceFlow);
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_.extend(sequenceFlow, {
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sourceRef: null,
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targetRef: null
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});
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};
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BpmnFactory.prototype.connectSequenceFlow = function(sequenceFlow, source, target) {
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_.extend(sequenceFlow, {
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sourceRef: source,
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targetRef: target
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});
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source.get('outgoing').push(sequenceFlow);
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target.get('incoming').push(sequenceFlow);
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};
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module.exports = BpmnFactory; |