111 lines
3.0 KiB
JavaScript
111 lines
3.0 KiB
JavaScript
/*
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Product Name: dhtmlxSuite
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Version: 5.2.0
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Edition: Professional
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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
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Copyright UAB Dinamenta http://www.dhtmlx.com
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*/
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/**
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* @desc: enable Undo/Redo functionality in grid
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* @type: public
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* @edition: Professional
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*/
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dhtmlXGridObject.prototype.enableUndoRedo = function()
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{
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var self = this;
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var func = function() {return self._onEditUndoRedo.apply(self,arguments);}
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this.attachEvent("onEditCell", func);
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var func2 = function(a,b,c) {return self._onEditUndoRedo.apply(self,[2,a,b,(c?1:0),(c?0:1)]);}
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this.attachEvent("onCheckbox", func2);
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this._IsUndoRedoEnabled = true;
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this._UndoRedoData = [];
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this._UndoRedoPos = -1;
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}
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/**
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* @desc: disable Undo/Redo functionality in grid
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* @type: public
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* @edition: Professional
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*/
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dhtmlXGridObject.prototype.disableUndoRedo = function()
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{
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this._IsUndoRedoEnabled = false;
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this._UndoRedoData = [];
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this._UndoRedoPos = -1;
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}
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dhtmlXGridObject.prototype._onEditUndoRedo = function(stage, row_id, cell_index, new_value, old_value)
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{
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if (this._IsUndoRedoEnabled && stage == 2 && old_value != new_value) {
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if (this._UndoRedoPos !== -1 && this._UndoRedoPos != ( this._UndoRedoData.length-1 ) ) {
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this._UndoRedoData = this._UndoRedoData.slice(0, this._UndoRedoPos+1);
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} else if (this._UndoRedoPos === -1 && this._UndoRedoData.length > 0) {
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this._UndoRedoData = [];
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}
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var obj = { old_value:old_value,
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new_value:new_value,
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row_id:row_id,
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cell_index:cell_index
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};
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this._UndoRedoData.push(obj);
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this._UndoRedoPos++;
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}
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return true;
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}
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/**
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* @desc: UnDo
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* @type: public
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* @edition: Professional
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*/
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dhtmlXGridObject.prototype.doUndo = function()
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{
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if (this._UndoRedoPos === -1)
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return false;
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var obj = this._UndoRedoData[this._UndoRedoPos--];
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var c=this.cells(obj.row_id, obj.cell_index);
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if (this.getColType(obj.cell_index)=="tree")
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c.setLabel(obj.old_value);
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else
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c.setValue(obj.old_value);
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this.callEvent("onUndo", [obj.row_id]);
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}
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/**
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* @desc: ReDo
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* @type: public
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* @edition: Professional
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*/
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dhtmlXGridObject.prototype.doRedo = function()
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{
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if (this._UndoRedoPos == this._UndoRedoData.length-1)
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return false;
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var obj = this._UndoRedoData[++this._UndoRedoPos];
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this.cells(obj.row_id, obj.cell_index).setValue(obj.new_value);
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this.callEvent("onUndo", [obj.row_id]);
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}
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/**
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* @desc: get length of available ReDo operations
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* @type: public
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* @edition: Professional
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*/
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dhtmlXGridObject.prototype.getRedo = function()
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{
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if (this._UndoRedoPos == this._UndoRedoData.length-1)
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return [];
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return this._UndoRedoData.slice(this._UndoRedoPos+1);
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}
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/**
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* @desc: get length of available UnDo operations
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* @type: public
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* @edition: Professional
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*/
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dhtmlXGridObject.prototype.getUndo = function()
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{
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if (this._UndoRedoPos == -1)
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return [];
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return this._UndoRedoData.slice(0, this._UndoRedoPos+1);
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}
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//(c)dhtmlx ltd. www.dhtmlx.com
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