/*
This file is part of Ext JS 3.4

Copyright (c) 2011-2013 Sencha Inc

Contact:  http://www.sencha.com/contact

GNU General Public License Usage
This file may be used under the terms of the GNU General Public License version 3.0 as
published by the Free Software Foundation and appearing in the file LICENSE included in the
packaging of this file.

Please review the following information to ensure the GNU General Public License version 3.0
requirements will be met: http://www.gnu.org/copyleft/gpl.html.

If you are unsure which license is appropriate for your use, please contact the sales department
at http://www.sencha.com/contact.

Build date: 2013-04-03 15:07:25
*/
/**
 * @class Ext.grid.CellSelectionModel
 * @extends Ext.grid.AbstractSelectionModel
 * This class provides the basic implementation for <i>single</i> <b>cell</b> selection in a grid.
 * The object stored as the selection contains the following properties:
 * <div class="mdetail-params"><ul>
 * <li><b>cell</b> : see {@link #getSelectedCell} 
 * <li><b>record</b> : Ext.data.record The {@link Ext.data.Record Record}
 * which provides the data for the row containing the selection</li>
 * </ul></div>
 * @constructor
 * @param {Object} config The object containing the configuration of this model.
 */
Ext.grid.CellSelectionModel = Ext.extend(Ext.grid.AbstractSelectionModel,  {
    
    constructor : function(config){
        Ext.apply(this, config);

	    this.selection = null;
	
	    this.addEvents(
	        /**
	         * @event beforecellselect
	         * Fires before a cell is selected, return false to cancel the selection.
	         * @param {SelectionModel} this
	         * @param {Number} rowIndex The selected row index
	         * @param {Number} colIndex The selected cell index
	         */
	        "beforecellselect",
	        /**
	         * @event cellselect
	         * Fires when a cell is selected.
	         * @param {SelectionModel} this
	         * @param {Number} rowIndex The selected row index
	         * @param {Number} colIndex The selected cell index
	         */
	        "cellselect",
	        /**
	         * @event selectionchange
	         * Fires when the active selection changes.
	         * @param {SelectionModel} this
	         * @param {Object} selection null for no selection or an object with two properties
	         * <div class="mdetail-params"><ul>
	         * <li><b>cell</b> : see {@link #getSelectedCell} 
	         * <li><b>record</b> : Ext.data.record<p class="sub-desc">The {@link Ext.data.Record Record}
	         * which provides the data for the row containing the selection</p></li>
	         * </ul></div>
	         */
	        "selectionchange"
	    );
	
	    Ext.grid.CellSelectionModel.superclass.constructor.call(this);
    },

    /** @ignore */
    initEvents : function(){
        this.grid.on('cellmousedown', this.handleMouseDown, this);
        this.grid.on(Ext.EventManager.getKeyEvent(), this.handleKeyDown, this);
        this.grid.getView().on({
            scope: this,
            refresh: this.onViewChange,
            rowupdated: this.onRowUpdated,
            beforerowremoved: this.clearSelections,
            beforerowsinserted: this.clearSelections
        });
        if(this.grid.isEditor){
            this.grid.on('beforeedit', this.beforeEdit,  this);
        }
    },

	//private
    beforeEdit : function(e){
        this.select(e.row, e.column, false, true, e.record);
    },

	//private
    onRowUpdated : function(v, index, r){
        if(this.selection && this.selection.record == r){
            v.onCellSelect(index, this.selection.cell[1]);
        }
    },

	//private
    onViewChange : function(){
        this.clearSelections(true);
    },

	/**
     * Returns an array containing the row and column indexes of the currently selected cell
     * (e.g., [0, 0]), or null if none selected. The array has elements:
     * <div class="mdetail-params"><ul>
     * <li><b>rowIndex</b> : Number<p class="sub-desc">The index of the selected row</p></li>
     * <li><b>cellIndex</b> : Number<p class="sub-desc">The index of the selected cell. 
     * Due to possible column reordering, the cellIndex should <b>not</b> be used as an
     * index into the Record's data. Instead, use the cellIndex to determine the <i>name</i>
     * of the selected cell and use the field name to retrieve the data value from the record:<pre><code>
// get name
var fieldName = grid.getColumnModel().getDataIndex(cellIndex);
// get data value based on name
var data = record.get(fieldName);
     * </code></pre></p></li>
     * </ul></div>
     * @return {Array} An array containing the row and column indexes of the selected cell, or null if none selected.
	 */
    getSelectedCell : function(){
        return this.selection ? this.selection.cell : null;
    },

    /**
     * If anything is selected, clears all selections and fires the selectionchange event.
     * @param {Boolean} preventNotify <tt>true</tt> to prevent the gridview from
     * being notified about the change.
     */
    clearSelections : function(preventNotify){
        var s = this.selection;
        if(s){
            if(preventNotify !== true){
                this.grid.view.onCellDeselect(s.cell[0], s.cell[1]);
            }
            this.selection = null;
            this.fireEvent("selectionchange", this, null);
        }
    },

    /**
     * Returns <tt>true</tt> if there is a selection.
     * @return {Boolean}
     */
    hasSelection : function(){
        return this.selection ? true : false;
    },

    /** @ignore */
    handleMouseDown : function(g, row, cell, e){
        if(e.button !== 0 || this.isLocked()){
            return;
        }
        this.select(row, cell);
    },

    /**
     * Selects a cell.  Before selecting a cell, fires the
     * {@link #beforecellselect} event.  If this check is satisfied the cell
     * will be selected and followed up by  firing the {@link #cellselect} and
     * {@link #selectionchange} events.
     * @param {Number} rowIndex The index of the row to select
     * @param {Number} colIndex The index of the column to select
     * @param {Boolean} preventViewNotify (optional) Specify <tt>true</tt> to
     * prevent notifying the view (disables updating the selected appearance)
     * @param {Boolean} preventFocus (optional) Whether to prevent the cell at
     * the specified rowIndex / colIndex from being focused.
     * @param {Ext.data.Record} r (optional) The record to select
     */
    select : function(rowIndex, colIndex, preventViewNotify, preventFocus, /*internal*/ r){
        if(this.fireEvent("beforecellselect", this, rowIndex, colIndex) !== false){
            this.clearSelections();
            r = r || this.grid.store.getAt(rowIndex);
            this.selection = {
                record : r,
                cell : [rowIndex, colIndex]
            };
            if(!preventViewNotify){
                var v = this.grid.getView();
                v.onCellSelect(rowIndex, colIndex);
                if(preventFocus !== true){
                    v.focusCell(rowIndex, colIndex);
                }
            }
            this.fireEvent("cellselect", this, rowIndex, colIndex);
            this.fireEvent("selectionchange", this, this.selection);
        }
    },

	//private
    isSelectable : function(rowIndex, colIndex, cm){
        return !cm.isHidden(colIndex);
    },
    
    // private
    onEditorKey: function(field, e){
        if(e.getKey() == e.TAB){
            this.handleKeyDown(e);
        }
    },

    /** @ignore */
    handleKeyDown : function(e){
        if(!e.isNavKeyPress()){
            return;
        }
        
        var k = e.getKey(),
            g = this.grid,
            s = this.selection,
            sm = this,
            walk = function(row, col, step){
                return g.walkCells(
                    row,
                    col,
                    step,
                    g.isEditor && g.editing ? sm.acceptsNav : sm.isSelectable, // *** handle tabbing while editorgrid is in edit mode
                    sm
                );
            },
            cell, newCell, r, c, ae;

        switch(k){
            case e.ESC:
            case e.PAGE_UP:
            case e.PAGE_DOWN:
                // do nothing
                break;
            default:
                // *** call e.stopEvent() only for non ESC, PAGE UP/DOWN KEYS
                e.stopEvent();
                break;
        }

        if(!s){
            cell = walk(0, 0, 1); // *** use private walk() function defined above
            if(cell){
                this.select(cell[0], cell[1]);
            }
            return;
        }

        cell = s.cell;  // currently selected cell
        r = cell[0];    // current row
        c = cell[1];    // current column
        
        switch(k){
            case e.TAB:
                if(e.shiftKey){
                    newCell = walk(r, c - 1, -1);
                }else{
                    newCell = walk(r, c + 1, 1);
                }
                break;
            case e.DOWN:
                newCell = walk(r + 1, c, 1);
                break;
            case e.UP:
                newCell = walk(r - 1, c, -1);
                break;
            case e.RIGHT:
                newCell = walk(r, c + 1, 1);
                break;
            case e.LEFT:
                newCell = walk(r, c - 1, -1);
                break;
            case e.ENTER:
                if (g.isEditor && !g.editing) {
                    g.startEditing(r, c);
                    return;
                }
                break;
        }

        if(newCell){
            // *** reassign r & c variables to newly-selected cell's row and column
            r = newCell[0];
            c = newCell[1];

            this.select(r, c); // *** highlight newly-selected cell and update selection

            if(g.isEditor && g.editing){ // *** handle tabbing while editorgrid is in edit mode
                ae = g.activeEditor;
                if(ae && ae.field.triggerBlur){
                    // *** if activeEditor is a TriggerField, explicitly call its triggerBlur() method
                    ae.field.triggerBlur();
                }
                g.startEditing(r, c);
            }
        }
    },

    acceptsNav : function(row, col, cm){
        return !cm.isHidden(col) && cm.isCellEditable(col, row);
    }
});/**
 * @class Ext.grid.EditorGridPanel
 * @extends Ext.grid.GridPanel
 * <p>This class extends the {@link Ext.grid.GridPanel GridPanel Class} to provide cell editing
 * on selected {@link Ext.grid.Column columns}. The editable columns are specified by providing
 * an {@link Ext.grid.ColumnModel#editor editor} in the {@link Ext.grid.Column column configuration}.</p>
 * <p>Editability of columns may be controlled programatically by inserting an implementation
 * of {@link Ext.grid.ColumnModel#isCellEditable isCellEditable} into the
 * {@link Ext.grid.ColumnModel ColumnModel}.</p>
 * <p>Editing is performed on the value of the <i>field</i> specified by the column's
 * <tt>{@link Ext.grid.ColumnModel#dataIndex dataIndex}</tt> in the backing {@link Ext.data.Store Store}
 * (so if you are using a {@link Ext.grid.ColumnModel#setRenderer renderer} in order to display
 * transformed data, this must be accounted for).</p>
 * <p>If a value-to-description mapping is used to render a column, then a {@link Ext.form.Field#ComboBox ComboBox}
 * which uses the same {@link Ext.form.Field#valueField value}-to-{@link Ext.form.Field#displayFieldField description}
 * mapping would be an appropriate editor.</p>
 * If there is a more complex mismatch between the visible data in the grid, and the editable data in
 * the {@link Edt.data.Store Store}, then code to transform the data both before and after editing can be
 * injected using the {@link #beforeedit} and {@link #afteredit} events.
 * @constructor
 * @param {Object} config The config object
 * @xtype editorgrid
 */
Ext.grid.EditorGridPanel = Ext.extend(Ext.grid.GridPanel, {
    /**
     * @cfg {Number} clicksToEdit
     * <p>The number of clicks on a cell required to display the cell's editor (defaults to 2).</p>
     * <p>Setting this option to 'auto' means that mousedown <i>on the selected cell</i> starts
     * editing that cell.</p>
     */
    clicksToEdit: 2,

    /**
    * @cfg {Boolean} forceValidation
    * True to force validation even if the value is unmodified (defaults to false)
    */
    forceValidation: false,

    // private
    isEditor : true,
    // private
    detectEdit: false,

    /**
     * @cfg {Boolean} autoEncode
     * True to automatically HTML encode and decode values pre and post edit (defaults to false)
     */
    autoEncode : false,

    /**
     * @cfg {Boolean} trackMouseOver @hide
     */
    // private
    trackMouseOver: false, // causes very odd FF errors

    // private
    initComponent : function(){
        Ext.grid.EditorGridPanel.superclass.initComponent.call(this);

        if(!this.selModel){
            /**
             * @cfg {Object} selModel Any subclass of AbstractSelectionModel that will provide the selection model for
             * the grid (defaults to {@link Ext.grid.CellSelectionModel} if not specified).
             */
            this.selModel = new Ext.grid.CellSelectionModel();
        }

        this.activeEditor = null;

        this.addEvents(
            /**
             * @event beforeedit
             * Fires before cell editing is triggered. The edit event object has the following properties <br />
             * <ul style="padding:5px;padding-left:16px;">
             * <li>grid - This grid</li>
             * <li>record - The record being edited</li>
             * <li>field - The field name being edited</li>
             * <li>value - The value for the field being edited.</li>
             * <li>row - The grid row index</li>
             * <li>column - The grid column index</li>
             * <li>cancel - Set this to true to cancel the edit or return false from your handler.</li>
             * </ul>
             * @param {Object} e An edit event (see above for description)
             */
            "beforeedit",
            /**
             * @event afteredit
             * Fires after a cell is edited. The edit event object has the following properties <br />
             * <ul style="padding:5px;padding-left:16px;">
             * <li>grid - This grid</li>
             * <li>record - The record being edited</li>
             * <li>field - The field name being edited</li>
             * <li>value - The value being set</li>
             * <li>originalValue - The original value for the field, before the edit.</li>
             * <li>row - The grid row index</li>
             * <li>column - The grid column index</li>
             * </ul>
             *
             * <pre><code>
grid.on('afteredit', afterEdit, this );

function afterEdit(e) {
    // execute an XHR to send/commit data to the server, in callback do (if successful):
    e.record.commit();
};
             * </code></pre>
             * @param {Object} e An edit event (see above for description)
             */
            "afteredit",
            /**
             * @event validateedit
             * Fires after a cell is edited, but before the value is set in the record. Return false
             * to cancel the change. The edit event object has the following properties <br />
             * <ul style="padding:5px;padding-left:16px;">
             * <li>grid - This grid</li>
             * <li>record - The record being edited</li>
             * <li>field - The field name being edited</li>
             * <li>value - The value being set</li>
             * <li>originalValue - The original value for the field, before the edit.</li>
             * <li>row - The grid row index</li>
             * <li>column - The grid column index</li>
             * <li>cancel - Set this to true to cancel the edit or return false from your handler.</li>
             * </ul>
             * Usage example showing how to remove the red triangle (dirty record indicator) from some
             * records (not all).  By observing the grid's validateedit event, it can be cancelled if
             * the edit occurs on a targeted row (for example) and then setting the field's new value
             * in the Record directly:
             * <pre><code>
grid.on('validateedit', function(e) {
  var myTargetRow = 6;

  if (e.row == myTargetRow) {
    e.cancel = true;
    e.record.data[e.field] = e.value;
  }
});
             * </code></pre>
             * @param {Object} e An edit event (see above for description)
             */
            "validateedit"
        );
    },

    // private
    initEvents : function(){
        Ext.grid.EditorGridPanel.superclass.initEvents.call(this);

        this.getGridEl().on('mousewheel', this.stopEditing.createDelegate(this, [true]), this);
        this.on('columnresize', this.stopEditing, this, [true]);

        if(this.clicksToEdit == 1){
            this.on("cellclick", this.onCellDblClick, this);
        }else {
            var view = this.getView();
            if(this.clicksToEdit == 'auto' && view.mainBody){
                view.mainBody.on('mousedown', this.onAutoEditClick, this);
            }
            this.on('celldblclick', this.onCellDblClick, this);
        }
    },

    onResize : function(){
        Ext.grid.EditorGridPanel.superclass.onResize.apply(this, arguments);
        var ae = this.activeEditor;
        if(this.editing && ae){
            ae.realign(true);
        }
    },

    // private
    onCellDblClick : function(g, row, col){
        this.startEditing(row, col);
    },

    // private
    onAutoEditClick : function(e, t){
        if(e.button !== 0){
            return;
        }
        var row = this.view.findRowIndex(t),
            col = this.view.findCellIndex(t);
        if(row !== false && col !== false){
            this.stopEditing();
            if(this.selModel.getSelectedCell){ // cell sm
                var sc = this.selModel.getSelectedCell();
                if(sc && sc[0] === row && sc[1] === col){
                    this.startEditing(row, col);
                }
            }else{
                if(this.selModel.isSelected(row)){
                    this.startEditing(row, col);
                }
            }
        }
    },

    // private
    onEditComplete : function(ed, value, startValue){
        this.editing = false;
        this.lastActiveEditor = this.activeEditor;
        this.activeEditor = null;

        var r = ed.record,
            field = this.colModel.getDataIndex(ed.col);
        value = this.postEditValue(value, startValue, r, field);
        if(this.forceValidation === true || String(value) !== String(startValue)){
            var e = {
                grid: this,
                record: r,
                field: field,
                originalValue: startValue,
                value: value,
                row: ed.row,
                column: ed.col,
                cancel:false
            };
            if(this.fireEvent("validateedit", e) !== false && !e.cancel && String(value) !== String(startValue)){
                r.set(field, e.value);
                delete e.cancel;
                this.fireEvent("afteredit", e);
            }
        }
        this.view.focusCell(ed.row, ed.col);
    },

    /**
     * Starts editing the specified for the specified row/column
     * @param {Number} rowIndex
     * @param {Number} colIndex
     */
    startEditing : function(row, col){
        this.stopEditing();
        if(this.colModel.isCellEditable(col, row)){
            this.view.ensureVisible(row, col, true);
            var r = this.store.getAt(row),
                field = this.colModel.getDataIndex(col),
                e = {
                    grid: this,
                    record: r,
                    field: field,
                    value: r.data[field],
                    row: row,
                    column: col,
                    cancel:false
                };
            if(this.fireEvent("beforeedit", e) !== false && !e.cancel){
                this.editing = true;
                var ed = this.colModel.getCellEditor(col, row);
                if(!ed){
                    return;
                }
                if(!ed.rendered){
                    ed.parentEl = this.view.getEditorParent(ed);
                    ed.on({
                        scope: this,
                        render: {
                            fn: function(c){
                                c.field.focus(false, true);
                            },
                            single: true,
                            scope: this
                        },
                        specialkey: function(field, e){
                            this.getSelectionModel().onEditorKey(field, e);
                        },
                        complete: this.onEditComplete,
                        canceledit: this.stopEditing.createDelegate(this, [true])
                    });
                }
                Ext.apply(ed, {
                    row     : row,
                    col     : col,
                    record  : r
                });
                this.lastEdit = {
                    row: row,
                    col: col
                };
                this.activeEditor = ed;
                if (ed.field.isXType('checkbox')) {
                    ed.allowBlur = false;
                    this.setupCheckbox(ed.field);    
                }
                // Set the selectSameEditor flag if we are reusing the same editor again and
                // need to prevent the editor from firing onBlur on itself.
                ed.selectSameEditor = (this.activeEditor == this.lastActiveEditor);
                var v = this.preEditValue(r, field);
                ed.startEdit(this.view.getCell(row, col).firstChild, Ext.isDefined(v) ? v : '');

                // Clear the selectSameEditor flag
                (function(){
                    delete ed.selectSameEditor;
                }).defer(50);
            }
        }
    },
    
    setupCheckbox: function(field){
        var me = this,
            fn = function() {
                field.el.on('click', me.onCheckClick, me, {single: true});
            };
        if (field.rendered) {
            fn();
        } else {
            field.on('render', fn, null, {single: true});
        }
    },
    
    onCheckClick: function(){
        var ed = this.activeEditor;
        ed.allowBlur = true;
        ed.field.focus(false, 10);   
    },

    // private
    preEditValue : function(r, field){
        var value = r.data[field];
        return this.autoEncode && Ext.isString(value) ? Ext.util.Format.htmlDecode(value) : value;
    },

    // private
    postEditValue : function(value, originalValue, r, field){
        return this.autoEncode && Ext.isString(value) ? Ext.util.Format.htmlEncode(value) : value;
    },

    /**
     * Stops any active editing
     * @param {Boolean} cancel (optional) True to cancel any changes
     */
    stopEditing : function(cancel){
        if(this.editing){
            // Store the lastActiveEditor to check if it is changing
            var ae = this.lastActiveEditor = this.activeEditor;
            if(ae){
                ae[cancel === true ? 'cancelEdit' : 'completeEdit']();
                this.view.focusCell(ae.row, ae.col);
            }
            this.activeEditor = null;
        }
        this.editing = false;
    }
});
Ext.reg('editorgrid', Ext.grid.EditorGridPanel);// private
// This is a support class used internally by the Grid components
Ext.grid.GridEditor = function(field, config){
    Ext.grid.GridEditor.superclass.constructor.call(this, field, config);
    field.monitorTab = false;
};

Ext.extend(Ext.grid.GridEditor, Ext.Editor, {
    alignment: "tl-tl",
    autoSize: "width",
    hideEl : false,
    cls: "x-small-editor x-grid-editor",
    shim:false,
    shadow:false
});