79 lines
2.2 KiB
JavaScript
79 lines
2.2 KiB
JavaScript
'use strict';
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var Collections = require('diagram-js/lib/util/Collections');
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function UpdateCanvasRootHandler(canvas, modeling) {
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this._canvas = canvas;
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this._modeling = modeling;
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}
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UpdateCanvasRootHandler.$inject = [ 'canvas', 'modeling' ];
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module.exports = UpdateCanvasRootHandler;
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UpdateCanvasRootHandler.prototype.execute = function(context) {
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var canvas = this._canvas;
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var newRoot = context.newRoot,
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newRootBusinessObject = newRoot.businessObject,
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oldRoot = canvas.getRootElement(),
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oldRootBusinessObject = oldRoot.businessObject,
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bpmnDefinitions = oldRootBusinessObject.$parent,
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diPlane = oldRootBusinessObject.di;
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// (1) replace process old <> new root
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canvas.setRootElement(newRoot, true);
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// (2) update root elements
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Collections.add(bpmnDefinitions.rootElements, newRootBusinessObject);
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newRootBusinessObject.$parent = bpmnDefinitions;
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Collections.remove(bpmnDefinitions.rootElements, oldRootBusinessObject);
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oldRootBusinessObject.$parent = null;
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// (3) wire di
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oldRootBusinessObject.di = null;
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diPlane.bpmnElement = newRootBusinessObject;
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newRootBusinessObject.di = diPlane;
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context.oldRoot = oldRoot;
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// TODO(nikku): return changed elements?
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// return [ newRoot, oldRoot ];
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};
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UpdateCanvasRootHandler.prototype.revert = function(context) {
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var canvas = this._canvas;
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var newRoot = context.newRoot,
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newRootBusinessObject = newRoot.businessObject,
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oldRoot = context.oldRoot,
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oldRootBusinessObject = oldRoot.businessObject,
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bpmnDefinitions = newRootBusinessObject.$parent,
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diPlane = newRootBusinessObject.di;
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// (1) replace process old <> new root
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canvas.setRootElement(oldRoot, true);
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// (2) update root elements
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Collections.remove(bpmnDefinitions.rootElements, newRootBusinessObject);
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newRootBusinessObject.$parent = null;
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Collections.add(bpmnDefinitions.rootElements, oldRootBusinessObject);
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oldRootBusinessObject.$parent = bpmnDefinitions;
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// (3) wire di
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newRootBusinessObject.di = null;
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diPlane.bpmnElement = oldRootBusinessObject;
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oldRootBusinessObject.di = diPlane;
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// TODO(nikku): return changed elements?
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// return [ newRoot, oldRoot ];
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}; |