| /* |
| 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.drawing.manager.Undo"]){ |
| dojo._hasResource["dojox.drawing.manager.Undo"]=true; |
| dojo.provide("dojox.drawing.manager.Undo"); |
| dojox.drawing.manager.Undo=dojox.drawing.util.oo.declare(function(_1){ |
| this.keys=_1.keys; |
| this.undostack=[]; |
| this.redostack=[]; |
| dojo.connect(this.keys,"onKeyDown",this,"onKeyDown"); |
| },{onKeyDown:function(_2){ |
| if(!_2.cmmd){ |
| return; |
| } |
| if(_2.keyCode==90&&!_2.shift){ |
| this.undo(); |
| }else{ |
| if((_2.keyCode==90&&_2.shift)||_2.keyCode==89){ |
| this.redo(); |
| } |
| } |
| },add:function(_3){ |
| _3.args=dojo.mixin({},_3.args); |
| this.undostack.push(_3); |
| },apply:function(_4,_5,_6){ |
| dojo.hitch(_4,_5)(_6); |
| },undo:function(){ |
| var o=this.undostack.pop(); |
| if(!o){ |
| return; |
| } |
| o.before(); |
| this.redostack.push(o); |
| },redo:function(){ |
| var o=this.redostack.pop(); |
| if(!o){ |
| return; |
| } |
| if(o.after){ |
| o.after(); |
| }else{ |
| o.before(); |
| } |
| this.undostack.push(o); |
| }}); |
| } |
