www.gusucode.com > 一个基于extjs的强大聊天插件源码程序 > 一个基于extjs的强大聊天插件/extjame/ext-jame/js/ext2/source/widgets/grid/EditorGrid.js
/*
* Ext JS Library 2.0.2
* Copyright(c) 2006-2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
/**
* @class Ext.grid.EditorGridPanel
* @extends Ext.grid.GridPanel
* Class for creating and editable grid.
* @constructor
* @param {Object} config The config object
*/
Ext.grid.EditorGridPanel = Ext.extend(Ext.grid.GridPanel, {
/**
* @cfg {Number} clicksToEdit
* The number of clicks on a cell required to display the cell's editor (defaults to 2)
*/
clicksToEdit: 2,
// 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){
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. <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>
* @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>
* @param {Object} e An edit event (see above for description)
*/
"validateedit"
);
},
// private
initEvents : function(){
Ext.grid.EditorGridPanel.superclass.initEvents.call(this);
this.on("bodyscroll", this.stopEditing, this, [true]);
if(this.clicksToEdit == 1){
this.on("cellclick", this.onCellDblClick, this);
}else {
if(this.clicksToEdit == 'auto' && this.view.mainBody){
this.view.mainBody.on("mousedown", this.onAutoEditClick, this);
}
this.on("celldblclick", this.onCellDblClick, this);
}
this.getGridEl().addClass("xedit-grid");
},
// 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);
var 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.cell[0] === row && sc.cell[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.activeEditor = null;
ed.un("specialkey", this.selModel.onEditorKey, this.selModel);
var r = ed.record;
var field = this.colModel.getDataIndex(ed.col);
value = this.postEditValue(value, startValue, r, field);
if(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){
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);
var field = this.colModel.getDataIndex(col);
var 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.rendered){
ed.render(this.view.getEditorParent(ed));
}
(function(){ // complex but required for focus issues in safari, ie and opera
ed.row = row;
ed.col = col;
ed.record = r;
ed.on("complete", this.onEditComplete, this, {single: true});
ed.on("specialkey", this.selModel.onEditorKey, this.selModel);
this.activeEditor = ed;
var v = this.preEditValue(r, field);
ed.startEdit(this.view.getCell(row, col), v);
}).defer(50, this);
}
}
},
preEditValue : function(r, field){
return this.autoEncode && typeof value == 'string' ? Ext.util.Format.htmlDecode(r.data[field]) : r.data[field];
},
postEditValue : function(value, originalValue, r, field){
return this.autoEncode && typeof value == 'string' ? Ext.util.Format.htmlEncode(value) : value;
},
/**
* Stops any active editing
* @param {Boolean} cancel (optional) True to cancel any changes
*/
stopEditing : function(cancel){
if(this.activeEditor){
this.activeEditor[cancel === true ? 'cancelEdit' : 'completeEdit']();
}
this.activeEditor = null;
}
});
Ext.reg('editorgrid', Ext.grid.EditorGridPanel);