root / trunk / web / dojo / dojox / sketch / UndoStack.js @ 12
History | View | Annotate | Download (1.69 KB)
| 1 | 9 | andrej.cim | /*
|
|---|---|---|---|
| 2 | Copyright (c) 2004-2010, The Dojo Foundation All Rights Reserved.
|
||
| 3 | Available via Academic Free License >= 2.1 OR the modified BSD license.
|
||
| 4 | see: http://dojotoolkit.org/license for details
|
||
| 5 | */
|
||
| 6 | |||
| 7 | |||
| 8 | if(!dojo._hasResource["dojox.sketch.UndoStack"]){ |
||
| 9 | dojo._hasResource["dojox.sketch.UndoStack"]=true; |
||
| 10 | dojo.provide("dojox.sketch.UndoStack");
|
||
| 11 | dojo.require("dojox.xml.DomParser");
|
||
| 12 | (function(){
|
||
| 13 | var ta=dojox.sketch;
|
||
| 14 | ta.CommandTypes={Create:"Create",Move:"Move",Modify:"Modify",Delete:"Delete",Convert:"Convert"};
|
||
| 15 | dojo.declare("dojox.sketch.UndoStack",null,{constructor:function(_1){ |
||
| 16 | this.figure=_1;
|
||
| 17 | this._steps=[];
|
||
| 18 | this._undoedSteps=[];
|
||
| 19 | },apply:function(_2,_3,to){ |
||
| 20 | if(!_3&&!to&&_2.fullText){
|
||
| 21 | this.figure.setValue(_2.fullText);
|
||
| 22 | return;
|
||
| 23 | } |
||
| 24 | var _4=_3.shapeText;
|
||
| 25 | var _5=to.shapeText;
|
||
| 26 | if(_4.length==0&&_5.length==0){ |
||
| 27 | return;
|
||
| 28 | } |
||
| 29 | if(_4.length==0){ |
||
| 30 | var o=dojox.xml.DomParser.parse(_5).documentElement;
|
||
| 31 | var a=this.figure._loadAnnotation(o); |
||
| 32 | if(a){
|
||
| 33 | this.figure._add(a);
|
||
| 34 | } |
||
| 35 | return;
|
||
| 36 | } |
||
| 37 | if(_5.length==0){ |
||
| 38 | var _6=this.figure.getAnnotator(_3.shapeId); |
||
| 39 | this.figure._delete([_6],true); |
||
| 40 | return;
|
||
| 41 | } |
||
| 42 | var _7=this.figure.getAnnotator(to.shapeId); |
||
| 43 | var no=dojox.xml.DomParser.parse(_5).documentElement;
|
||
| 44 | _7.draw(no); |
||
| 45 | this.figure.select(_7);
|
||
| 46 | return;
|
||
| 47 | },add:function(_8,_9,_a){ |
||
| 48 | var id=_9?_9.id:""; |
||
| 49 | var _b=_9?_9.serialize():""; |
||
| 50 | if(_8==ta.CommandTypes.Delete){
|
||
| 51 | _b="";
|
||
| 52 | } |
||
| 53 | var _c={cmdname:_8,before:{shapeId:id,shapeText:_a||""},after:{shapeId:id,shapeText:_b}}; |
||
| 54 | this._steps.push(_c);
|
||
| 55 | this._undoedSteps=[];
|
||
| 56 | },destroy:function(){ |
||
| 57 | },undo:function(){ |
||
| 58 | var _d=this._steps.pop(); |
||
| 59 | if(_d){
|
||
| 60 | this._undoedSteps.push(_d);
|
||
| 61 | this.apply(_d,_d.after,_d.before);
|
||
| 62 | } |
||
| 63 | },redo:function(){ |
||
| 64 | var _e=this._undoedSteps.pop(); |
||
| 65 | if(_e){
|
||
| 66 | this._steps.push(_e);
|
||
| 67 | this.apply(_e,_e.before,_e.after);
|
||
| 68 | } |
||
| 69 | }}); |
||
| 70 | })(); |
||
| 71 | } |