root / trunk / web / dojo / dojox / sketch / UndoStack.js
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| 1 | 9 | andrej.cim | /*
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| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
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| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
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| 4 | see: http://dojotoolkit.org/license for details
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| 5 | */
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| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.sketch.UndoStack"]){ |
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| 9 | dojo._hasResource["dojox.sketch.UndoStack"]=true; |
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| 10 | dojo.provide("dojox.sketch.UndoStack");
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| 11 | dojo.require("dojox.xml.DomParser");
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| 12 | (function(){
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| 13 | var ta=dojox.sketch;
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| 14 | ta.CommandTypes={Create:"Create",Move:"Move",Modify:"Modify",Delete:"Delete",Convert:"Convert"};
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| 15 | dojo.declare("dojox.sketch.UndoStack",null,{constructor:function(_1){ |
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| 16 | this.figure=_1;
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| 17 | this._steps=[];
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| 18 | this._undoedSteps=[];
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| 19 | },apply:function(_2,_3,to){ |
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| 20 | if(!_3&&!to&&_2.fullText){
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| 21 | this.figure.setValue(_2.fullText);
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| 22 | return;
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| 23 | } |
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| 24 | var _4=_3.shapeText;
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| 25 | var _5=to.shapeText;
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| 26 | if(_4.length==0&&_5.length==0){ |
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| 27 | return;
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| 28 | } |
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| 29 | if(_4.length==0){ |
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| 30 | var o=dojox.xml.DomParser.parse(_5).documentElement;
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| 31 | var a=this.figure._loadAnnotation(o); |
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| 32 | if(a){
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| 33 | this.figure._add(a);
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| 34 | } |
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| 35 | return;
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| 36 | } |
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| 37 | if(_5.length==0){ |
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| 38 | var _6=this.figure.getAnnotator(_3.shapeId); |
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| 39 | this.figure._delete([_6],true); |
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| 40 | return;
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| 41 | } |
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| 42 | var _7=this.figure.getAnnotator(to.shapeId); |
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| 43 | var no=dojox.xml.DomParser.parse(_5).documentElement;
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| 44 | _7.draw(no); |
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| 45 | this.figure.select(_7);
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| 46 | return;
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| 47 | },add:function(_8,_9,_a){ |
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| 48 | var id=_9?_9.id:""; |
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| 49 | var _b=_9?_9.serialize():""; |
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| 50 | if(_8==ta.CommandTypes.Delete){
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| 51 | _b="";
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| 52 | } |
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| 53 | var _c={cmdname:_8,before:{shapeId:id,shapeText:_a||""},after:{shapeId:id,shapeText:_b}}; |
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| 54 | this._steps.push(_c);
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| 55 | this._undoedSteps=[];
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| 56 | },destroy:function(){ |
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| 57 | },undo:function(){ |
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| 58 | var _d=this._steps.pop(); |
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| 59 | if(_d){
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| 60 | this._undoedSteps.push(_d);
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| 61 | this.apply(_d,_d.after,_d.before);
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| 62 | } |
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| 63 | },redo:function(){ |
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| 64 | var _e=this._undoedSteps.pop(); |
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| 65 | if(_e){
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| 66 | this._steps.push(_e);
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| 67 | this.apply(_e,_e.before,_e.after);
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| 68 | } |
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| 69 | }}); |
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| 70 | })(); |
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| 71 | } |