Add version files and new GIF images for UI components

themes/sources4.0/dhtmlxGrid/codebase/ext/dhtmlxgrid_undo.js

@@ -0,0 +1,110 @@
+/*
+Product Name: dhtmlxSuite 
+Version: 4.0.3 
+Edition: Professional 
+License: content of this file is covered by DHTMLX Commercial or Enterprise license. Usage without proper license is prohibited. To obtain it contact sales@dhtmlx.com
+Copyright UAB Dinamenta http://www.dhtmlx.com
+*/
+
+/**
+*	@desc: enable Undo/Redo functionality in grid
+*	@type: public
+*	@edition: Professional
+*/
+dhtmlXGridObject.prototype.enableUndoRedo = function()
+{ 
+	var self = this;
+	var func = function() {return self._onEditUndoRedo.apply(self,arguments);}
+	this.attachEvent("onEditCell", func);
+	var func2 = function(a,b,c) {return self._onEditUndoRedo.apply(self,[2,a,b,(c?1:0),(c?0:1)]);}		
+	this.attachEvent("onCheckbox", func2);
+	this._IsUndoRedoEnabled = true;
+	this._UndoRedoData = [];
+	this._UndoRedoPos = -1;
+}
+/**
+*	@desc: disable Undo/Redo functionality in grid
+*	@type: public
+*	@edition: Professional
+*/
+dhtmlXGridObject.prototype.disableUndoRedo = function()
+{
+	this._IsUndoRedoEnabled = false;
+	this._UndoRedoData = [];
+	this._UndoRedoPos = -1;
+}
+
+dhtmlXGridObject.prototype._onEditUndoRedo = function(stage, row_id, cell_index, new_value, old_value)
+{
+	if (this._IsUndoRedoEnabled && stage == 2 && old_value != new_value) {
+	    if (this._UndoRedoPos !== -1 && this._UndoRedoPos != ( this._UndoRedoData.length-1 ) ) {
+	        this._UndoRedoData = this._UndoRedoData.slice(0, this._UndoRedoPos+1);
+	    } else if (this._UndoRedoPos === -1 && this._UndoRedoData.length > 0) {
+	        this._UndoRedoData = [];
+	    }
+
+	    var obj = { old_value:old_value,
+	                new_value:new_value,
+	                row_id:row_id,
+	                cell_index:cell_index
+	    };
+	    this._UndoRedoData.push(obj);
+	    this._UndoRedoPos++;
+	}
+	return true;
+}
+/**
+*	@desc: UnDo
+*	@type: public
+*	@edition: Professional
+*/
+dhtmlXGridObject.prototype.doUndo = function()
+{
+	if (this._UndoRedoPos === -1)
+		return false;
+	var obj = this._UndoRedoData[this._UndoRedoPos--];
+	var c=this.cells(obj.row_id, obj.cell_index);
+	if (this.getColType(obj.cell_index)=="tree")
+		c.setLabel(obj.old_value);
+	else
+		c.setValue(obj.old_value);
+
+	this.callEvent("onUndo", [obj.row_id]);
+}
+/**
+*	@desc: ReDo
+*	@type: public
+*	@edition: Professional
+*/
+dhtmlXGridObject.prototype.doRedo = function()
+{
+	if (this._UndoRedoPos == this._UndoRedoData.length-1)
+		return false;
+	var obj = this._UndoRedoData[++this._UndoRedoPos];
+	this.cells(obj.row_id, obj.cell_index).setValue(obj.new_value);
+
+	this.callEvent("onUndo", [obj.row_id]);
+}
+/**
+*	@desc: get length of available ReDo operations
+*	@type: public
+*	@edition: Professional
+*/
+dhtmlXGridObject.prototype.getRedo = function()
+{
+	if (this._UndoRedoPos == this._UndoRedoData.length-1)
+		return [];
+	return this._UndoRedoData.slice(this._UndoRedoPos+1);
+}
+/**
+*	@desc: get length of available UnDo operations
+*	@type: public
+*	@edition: Professional
+*/
+dhtmlXGridObject.prototype.getUndo = function()
+{
+	if (this._UndoRedoPos == -1)
+		return [];
+	return this._UndoRedoData.slice(0, this._UndoRedoPos+1);
+}
+//(c)dhtmlx ltd. www.dhtmlx.com