| /* |
| Copyright (c) 2004-2009, The Dojo Foundation All Rights Reserved. |
| Available via Academic Free License >= 2.1 OR the modified BSD license. |
| see: http://dojotoolkit.org/license for details |
| */ |
| |
| |
| if(!dojo._hasResource["dojox.sketch.UndoStack"]){ |
| dojo._hasResource["dojox.sketch.UndoStack"]=true; |
| dojo.provide("dojox.sketch.UndoStack"); |
| dojo.require("dojox.xml.DomParser"); |
| (function(){ |
| var ta=dojox.sketch; |
| ta.CommandTypes={Create:"Create",Move:"Move",Modify:"Modify",Delete:"Delete",Convert:"Convert"}; |
| dojo.declare("dojox.sketch.UndoStack",null,{constructor:function(_1){ |
| this.figure=_1; |
| this._steps=[]; |
| this._undoedSteps=[]; |
| },apply:function(_2,_3,to){ |
| if(!_3&&!to&&_2.fullText){ |
| this.figure.setValue(_2.fullText); |
| return; |
| } |
| var _4=_3.shapeText; |
| var _5=to.shapeText; |
| if(_4.length==0&&_5.length==0){ |
| return; |
| } |
| if(_4.length==0){ |
| var o=dojox.xml.DomParser.parse(_5).documentElement; |
| var a=this.figure._loadAnnotation(o); |
| if(a){ |
| this.figure._add(a); |
| } |
| return; |
| } |
| if(_5.length==0){ |
| var _6=this.figure.get(_3.shapeId); |
| this.figure._delete([_6],true); |
| return; |
| } |
| var _7=this.figure.get(to.shapeId); |
| var no=dojox.xml.DomParser.parse(_5).documentElement; |
| _7.draw(no); |
| this.figure.select(_7); |
| return; |
| },add:function(_8,_9,_a){ |
| var id=_9?_9.id:""; |
| var _b=_9?_9.serialize():""; |
| if(_8==ta.CommandTypes.Delete){ |
| _b=""; |
| } |
| var _c={cmdname:_8,before:{shapeId:id,shapeText:_a||""},after:{shapeId:id,shapeText:_b}}; |
| this._steps.push(_c); |
| this._undoedSteps=[]; |
| },destroy:function(){ |
| },undo:function(){ |
| var _d=this._steps.pop(); |
| if(_d){ |
| this._undoedSteps.push(_d); |
| this.apply(_d,_d.after,_d.before); |
| } |
| },redo:function(){ |
| var _e=this._undoedSteps.pop(); |
| if(_e){ |
| this._steps.push(_e); |
| this.apply(_e,_e.before,_e.after); |
| } |
| }}); |
| })(); |
| } |
