| /* |
| 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(_2){ |
| this.figure=_2; |
| this._steps=[]; |
| this._undoedSteps=[]; |
| },apply:function(_3,_4,to){ |
| if(!_4&&!to&&_3.fullText){ |
| this.figure.setValue(_3.fullText); |
| return; |
| } |
| var _6=_4.shapeText; |
| var _7=to.shapeText; |
| if(_6.length==0&&_7.length==0){ |
| return; |
| } |
| if(_6.length==0){ |
| var o=dojox.xml.DomParser.parse(_7).documentElement; |
| var a=this.figure._loadAnnotation(o); |
| if(a){ |
| this.figure._add(a); |
| } |
| return; |
| } |
| if(_7.length==0){ |
| var _a=this.figure.get(_4.shapeId); |
| this.figure._delete([_a],true); |
| return; |
| } |
| var _b=this.figure.get(to.shapeId); |
| var no=dojox.xml.DomParser.parse(_7).documentElement; |
| _b.draw(no); |
| this.figure.select(_b); |
| return; |
| },add:function(_d,_e,_f){ |
| var id=_e?_e.id:""; |
| var _11=_e?_e.serialize():""; |
| if(_d==ta.CommandTypes.Delete){ |
| _11=""; |
| } |
| var _12={cmdname:_d,before:{shapeId:id,shapeText:_f||""},after:{shapeId:id,shapeText:_11}}; |
| this._steps.push(_12); |
| this._undoedSteps=[]; |
| },destroy:function(){ |
| },undo:function(){ |
| var _13=this._steps.pop(); |
| if(_13){ |
| this._undoedSteps.push(_13); |
| this.apply(_13,_13.after,_13.before); |
| } |
| },redo:function(){ |
| var _14=this._undoedSteps.pop(); |
| if(_14){ |
| this._steps.push(_14); |
| this.apply(_14,_14.before,_14.after); |
| } |
| }}); |
| })(); |
| } |
