    /**
     * @class YAHOO.ext.grid.CellEditor
     * Base class for all EditorGrid editors
     */
    YAHOO.ext.grid.CellEditor = function(element){
        this.colIndex = null;
        this.rowIndex = null;
        this.grid = null;
        this.editing = false;
        this.originalValue = null;
        this.element = getEl(element, true);
        this.element.addClass('ygrid-editor');
        this.element.dom.tabIndex = 1;
        this.initialized = false;
        this.callback = null;
    };

    YAHOO.ext.grid.CellEditor.prototype = {
        init : function(grid, bodyElement, callback){
            // there's no way for the grid to know if multiple columns
            // share the same editor so it will try to initialize the
            // same one over and over
            if(this.initialized) return;
            this.initialized = true;
            this.callback = callback;
            this.grid = grid;
            bodyElement.appendChild(this.element.dom);
            this.initEvents();
        },

        initEvents : function(){
            var stopOnEnter = function(e){
                if(e.browserEvent.keyCode == e.RETURN){
                    this.stopEditing(true);
                }else if(e.browserEvent.keyCode == e.ESC){
                    this.setValue(this.originalValue);
                    this.stopEditing(true);
                }
            }
            this.element.mon('keydown', stopOnEnter, this, true);
            this.element.on('blur', this.stopEditing, this, true);
        },

        startEditing : function(value, row, cell){
            this.originalValue = value;
            this.rowIndex = row.rowIndex;
            this.colIndex = cell.columnIndex;
            this.cell = cell;
            this.setValue(value);
            var cellbox = getEl(cell, true).getBox();
            this.fitToCell(cellbox);
            this.editing = true;
            this.show();
        },

        stopEditing : function(focusCell){
             if(this.editing){
                 this.editing = false;
                 var newValue = this.getValue();
                 this.hide();
                 //if(focusCell){try{this.cell.focus();}catch(e){}}; // try to give the cell focus so keyboard nav still works
                 if(this.originalValue != newValue){
                    this.callback(newValue, this.rowIndex, this.colIndex);
                 }
             }
         },

        setValue : function(value){
            this.element.dom.value = value;
        },

        getValue : function(){
            return this.element.dom.value;
        },

        fitToCell : function(box){
            this.element.setBox(box, true);
        },

        show : function(){
            this.element.show();
            this.element.focus();
        },

        hide : function(){
            try{
                this.element.dom.blur();
            }catch(e){}
            this.element.hide();
        }
    };

Copyright © 2006 Jack Slocum. All rights reserved.