309         this._batchAction = this._undo.action.create();
536             var action = undo.action.create([command]);
537             undo.logAction(action);
592         this.action = {  class in AnonymousFunction4dce81d40100.AnonymousFunction4dce81d42100.Undo.Undo
596             invert: function (action) {  argument
598                 var revert = gantt.copy(action);
600                 for (var i = 0; i < action.commands.length; i++) {
670         var action = this._pop(this._undoStack);
671         if (action) {
672             this._reorderCommands(action);
674         if (gantt.callEvent("onBeforeUndo", [action]) !== false) {
675             if (action) {
676                 this._applyAction(this.action.invert(action));
677                 this._push(this._redoStack, gantt.copy(action));
678                 gantt.callEvent("onAfterUndo", [action]);
689         var action = this._pop(this._redoStack);
690         if (action) {
691             this._reorderCommands(action);
693         if (gantt.callEvent("onBeforeRedo", [action]) !== false) {
694             if (action) {
695                 this._applyAction(action);
696                 this._push(this._undoStack, gantt.copy(action));
697                 gantt.callEvent("onAfterRedo", [action]);
704     Undo.prototype.logAction = function (action) {  argument
705         this._push(this._undoStack, action);
708     Undo.prototype._push = function (stack, action) {  argument
709         if (!action.commands.length) {
713         if (gantt.callEvent(event, [action]) === false) {
717         if (!action.commands.length) {
720         stack.push(action);
724         return action;
729     Undo.prototype._reorderCommands = function (action) {  argument
735         action.commands.sort(function (a, b) {
754     Undo.prototype._applyAction = function (action) {  argument
775             for (var i = 0; i < action.commands.length; i++) {
776                 command = action.commands[i];