| dojo.provide("dojo.undo.Manager"); |
| dojo.require("dojo.lang.common"); |
| dojo.undo.Manager=function(_1){ |
| this.clear(); |
| this._parent=_1; |
| }; |
| dojo.extend(dojo.undo.Manager,{_parent:null,_undoStack:null,_redoStack:null,_currentManager:null,canUndo:false,canRedo:false,isUndoing:false,isRedoing:false,onUndo:function(_2,_3){ |
| },onRedo:function(_4,_5){ |
| },onUndoAny:function(_6,_7){ |
| },onRedoAny:function(_8,_9){ |
| },_updateStatus:function(){ |
| this.canUndo=this._undoStack.length>0; |
| this.canRedo=this._redoStack.length>0; |
| },clear:function(){ |
| this._undoStack=[]; |
| this._redoStack=[]; |
| this._currentManager=this; |
| this.isUndoing=false; |
| this.isRedoing=false; |
| this._updateStatus(); |
| },undo:function(){ |
| if(!this.canUndo){ |
| return false; |
| } |
| this.endAllTransactions(); |
| this.isUndoing=true; |
| var _a=this._undoStack.pop(); |
| if(_a instanceof dojo.undo.Manager){ |
| _a.undoAll(); |
| }else{ |
| _a.undo(); |
| } |
| if(_a.redo){ |
| this._redoStack.push(_a); |
| } |
| this.isUndoing=false; |
| this._updateStatus(); |
| this.onUndo(this,_a); |
| if(!(_a instanceof dojo.undo.Manager)){ |
| this.getTop().onUndoAny(this,_a); |
| } |
| return true; |
| },redo:function(){ |
| if(!this.canRedo){ |
| return false; |
| } |
| this.isRedoing=true; |
| var _b=this._redoStack.pop(); |
| if(_b instanceof dojo.undo.Manager){ |
| _b.redoAll(); |
| }else{ |
| _b.redo(); |
| } |
| this._undoStack.push(_b); |
| this.isRedoing=false; |
| this._updateStatus(); |
| this.onRedo(this,_b); |
| if(!(_b instanceof dojo.undo.Manager)){ |
| this.getTop().onRedoAny(this,_b); |
| } |
| return true; |
| },undoAll:function(){ |
| while(this._undoStack.length>0){ |
| this.undo(); |
| } |
| },redoAll:function(){ |
| while(this._redoStack.length>0){ |
| this.redo(); |
| } |
| },push:function(_c,_d,_e){ |
| if(!_c){ |
| return; |
| } |
| if(this._currentManager==this){ |
| this._undoStack.push({undo:_c,redo:_d,description:_e}); |
| }else{ |
| this._currentManager.push.apply(this._currentManager,arguments); |
| } |
| this._redoStack=[]; |
| this._updateStatus(); |
| },concat:function(_f){ |
| if(!_f){ |
| return; |
| } |
| if(this._currentManager==this){ |
| for(var x=0;x<_f._undoStack.length;x++){ |
| this._undoStack.push(_f._undoStack[x]); |
| } |
| if(_f._undoStack.length>0){ |
| this._redoStack=[]; |
| } |
| this._updateStatus(); |
| }else{ |
| this._currentManager.concat.apply(this._currentManager,arguments); |
| } |
| },beginTransaction:function(_11){ |
| if(this._currentManager==this){ |
| var mgr=new dojo.undo.Manager(this); |
| mgr.description=_11?_11:""; |
| this._undoStack.push(mgr); |
| this._currentManager=mgr; |
| return mgr; |
| }else{ |
| this._currentManager=this._currentManager.beginTransaction.apply(this._currentManager,arguments); |
| } |
| },endTransaction:function(_13){ |
| if(this._currentManager==this){ |
| if(this._parent){ |
| this._parent._currentManager=this._parent; |
| if(this._undoStack.length==0||_13){ |
| var idx=dojo.lang.find(this._parent._undoStack,this); |
| if(idx>=0){ |
| this._parent._undoStack.splice(idx,1); |
| if(_13){ |
| for(var x=0;x<this._undoStack.length;x++){ |
| this._parent._undoStack.splice(idx++,0,this._undoStack[x]); |
| } |
| this._updateStatus(); |
| } |
| } |
| } |
| return this._parent; |
| } |
| }else{ |
| this._currentManager=this._currentManager.endTransaction.apply(this._currentManager,arguments); |
| } |
| },endAllTransactions:function(){ |
| while(this._currentManager!=this){ |
| this.endTransaction(); |
| } |
| },getTop:function(){ |
| if(this._parent){ |
| return this._parent.getTop(); |
| }else{ |
| return this; |
| } |
| }}); |
