Roo/UndoManager.js

diff --git a/Roo/UndoManager.js b/Roo/UndoManager.js
index 3e7f840..e18b2bf 100644 (file)
--- a/Roo/UndoManager.js
+++ b/Roo/UndoManager.js
@@ -26,63 +26,69 @@ function UndoManager(limit, undoScopeHost) {
                this.position = 0;
                this.length = 0;
 
-               this.transact = function (transaction, merge) {
-                       if (arguments.length < 2)
-                               throw new TypeError('Not enough arguments to UndoManager.transact.');
+}
+        
+Roo.UndoManager.prototype = {
+    transact : function (transaction, merge)
+    {
+        if (arguments.length < 2)
+            throw new TypeError('Not enough arguments to UndoManager.transact.');
 
-                       transaction.execute();
+        transaction.execute();
 
-                       stack.splice(0, this.position);
-                       if (merge && this.length)
-                               stack[0].push(transaction);
-                       else
-                               stack.unshift([transaction]);
-                       this.position = 0;
+        stack.splice(0, this.position);
+        if (merge && this.length)
+            stack[0].push(transaction);
+        else
+            stack.unshift([transaction]);
+        this.position = 0;
 
-                       if (limit && stack.length > limit)
-                               this.length = stack.length = limit;
-                       else
-                               this.length = stack.length;
+        if (limit && stack.length > limit)
+            this.length = stack.length = limit;
+        else
+            this.length = stack.length;
 
-                       if (fireEvent)
-                               undoScopeHost.dispatchEvent(new CustomEvent('DOMTransaction', {detail: {transactions: stack[0].slice()}, bubbles: true, cancelable: false}));
-               };
+        if (fireEvent)
+            undoScopeHost.dispatchEvent(new CustomEvent('DOMTransaction', {detail: {transactions: stack[0].slice()}, bubbles: true, cancelable: false}));
+    },
 
-               this.undo = function () {
-                       if (this.position < this.length) {
-                               for (var i = stack[this.position].length - 1; i >= 0; i--)
-                                       stack[this.position][i].undo();
-                               this.position++;
+    undo : function ()
+    {
+        if (this.position < this.length) {
+            for (var i = stack[this.position].length - 1; i >= 0; i--)
+                stack[this.position][i].undo();
+            this.position++;
 
-                               if (fireEvent)
-                                       undoScopeHost.dispatchEvent(new CustomEvent('undo', {detail: {transactions: stack[this.position - 1].slice()}, bubbles: true, cancelable: false}));
-                       }
-               };
+            if (fireEvent)
+                undoScopeHost.dispatchEvent(new CustomEvent('undo', {detail: {transactions: stack[this.position - 1].slice()}, bubbles: true, cancelable: false}));
+        }
+    },
 
-               this.redo = function () {
-                       if (this.position > 0) {
-                               for (var i = 0, n = stack[this.position - 1].length; i < n; i++)
-                                       stack[this.position - 1][i].redo();
-                               this.position--;
+    redo : function () {
+        if (this.position > 0) {
+            for (var i = 0, n = stack[this.position - 1].length; i < n; i++)
+                stack[this.position - 1][i].redo();
+            this.position--;
 
-                               if (fireEvent)
-                                       undoScopeHost.dispatchEvent(new CustomEvent('redo', {detail: {transactions: stack[this.position].slice()}, bubbles: true, cancelable: false}));
-                       }
-               };
+            if (fireEvent)
+                undoScopeHost.dispatchEvent(new CustomEvent('redo', {detail: {transactions: stack[this.position].slice()}, bubbles: true, cancelable: false}));
+        }
+    },
 
-               this.item = function (index) {
-                       if (index >= 0 && index < this.length)
-                               return stack[index].slice();
-                       return null;
-               };
+    item : function (index)
+    {
+        if (index >= 0 && index < this.length)
+            return stack[index].slice();
+        return null;
+    },
 
-               this.clearUndo = function () {
-                       stack.length = this.length = this.position;
-               };
+    clearUndo : function () {
+        stack.length = this.length = this.position;
+    },
 
-               this.clearRedo = function () {
-                       stack.splice(0, this.position);
-                       this.position = 0;
-                       this.length = stack.length;
-               };
-       }
\ No newline at end of file
+    clearRedo : function () {
+        stack.splice(0, this.position);
+        this.position = 0;
+        this.length = stack.length;
+    }
+}
\ No newline at end of file