62 lines
1.3 KiB
JavaScript
62 lines
1.3 KiB
JavaScript
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//>>built
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// wrapped by build app
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define("dojox/drawing/manager/Undo", ["dijit","dojo","dojox"], function(dijit,dojo,dojox){
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dojo.provide("dojox.drawing.manager.Undo");
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dojox.drawing.manager.Undo = dojox.drawing.util.oo.declare(
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// summary
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// Handles the Undo in drawing.
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// NOTE: Only partially implemented!!! There is very
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// little actual undo functionality!
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//
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function(options){
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this.keys = options.keys;
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this.undostack = [];
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this.redostack = [];
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dojo.connect(this.keys, "onKeyDown", this, "onKeyDown");
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},
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{
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onKeyDown: function(evt){
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if(!evt.cmmd){ return; }
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if(evt.keyCode==90 && !evt.shift){
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this.undo();
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}else if((evt.keyCode == 90 && evt.shift) || evt.keyCode==89){
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this.redo();
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}
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},
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add: function(stack){
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//console.log("undo add", stack)
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stack.args = dojo.mixin({}, stack.args);
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this.undostack.push(stack);
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},
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apply: function(scope, method, args){
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dojo.hitch(scope, method)(args);
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},
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undo: function(){
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var o = this.undostack.pop();
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console.log("undo!", o);
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if(!o){ return; }
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o.before();
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this.redostack.push(o);
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},
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redo: function(){
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console.log("redo!");
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var o = this.redostack.pop();
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if(!o){ return; }
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if(o.after){
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o.after();
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}else{
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o.before(); ///??????
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}
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this.undostack.push(o);
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}
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}
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);
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});
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