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/*!
* Ext JS Library 3.0.3
* Copyright(c) 2006-2009 Ext JS, LLC
* licensing@extjs.com
* http://www.extjs.com/license
*/
Ext.ns('Ext.ux.grid');
/**
* @class Ext.ux.grid.RowExpander
* @extends Ext.util.Observable
* Plugin (ptype = 'rowexpander') that adds the ability to have a Column in a grid which enables
* a second row body which expands/contracts. The expand/contract behavior is configurable to react
* on clicking of the column, double click of the row, and/or hitting enter while a row is selected.
*
* @ptype rowexpander
*/
Ext.ux.grid.RowExpander = Ext.extend(Ext.util.Observable, {
/**
* @cfg {Boolean} expandOnEnter
* <tt>true</tt> to toggle selected row(s) between expanded/collapsed when the enter
* key is pressed (defaults to <tt>true</tt>).
*/
expandOnEnter : true,
/**
* @cfg {Boolean} expandOnDblClick
* <tt>true</tt> to toggle a row between expanded/collapsed when double clicked
* (defaults to <tt>true</tt>).
*/
expandOnDblClick : true,
header : '',
width : 20,
sortable : false,
fixed : true,
menuDisabled : true,
dataIndex : '',
id : 'expander',
lazyRender : true,
enableCaching : true,
constructor: function(config){
Ext.apply(this, config);
this.addEvents({
/**
* @event beforeexpand
* Fires before the row expands. Have the listener return false to prevent the row from expanding.
* @param {Object} this RowExpander object.
* @param {Object} Ext.data.Record Record for the selected row.
* @param {Object} body body element for the secondary row.
* @param {Number} rowIndex The current row index.
*/
beforeexpand: true,
/**
* @event expand
* Fires after the row expands.
* @param {Object} this RowExpander object.
* @param {Object} Ext.data.Record Record for the selected row.
* @param {Object} body body element for the secondary row.
* @param {Number} rowIndex The current row index.
*/
expand: true,
/**
* @event beforecollapse
* Fires before the row collapses. Have the listener return false to prevent the row from collapsing.
* @param {Object} this RowExpander object.
* @param {Object} Ext.data.Record Record for the selected row.
* @param {Object} body body element for the secondary row.
* @param {Number} rowIndex The current row index.
*/
beforecollapse: true,
/**
* @event collapse
* Fires after the row collapses.
* @param {Object} this RowExpander object.
* @param {Object} Ext.data.Record Record for the selected row.
* @param {Object} body body element for the secondary row.
* @param {Number} rowIndex The current row index.
*/
collapse: true
});
Ext.ux.grid.RowExpander.superclass.constructor.call(this);
if(this.tpl){
if(typeof this.tpl == 'string'){
this.tpl = new Ext.Template(this.tpl);
}
this.tpl.compile();
}
this.state = {};
this.bodyContent = {};
},
getRowClass : function(record, rowIndex, p, ds){
p.cols = p.cols-1;
var content = this.bodyContent[record.id];
if(!content && !this.lazyRender){
content = this.getBodyContent(record, rowIndex);
}
if(content){
p.body = content;
}
return this.state[record.id] ? 'x-grid3-row-expanded' : 'x-grid3-row-collapsed';
},
init : function(grid){
this.grid = grid;
var view = grid.getView();
view.getRowClass = this.getRowClass.createDelegate(this);
view.enableRowBody = true;
grid.on('render', this.onRender, this);
grid.on('destroy', this.onDestroy, this);
},
// @private
onRender: function() {
var grid = this.grid;
var mainBody = grid.getView().mainBody;
mainBody.on('mousedown', this.onMouseDown, this, {delegate: '.x-grid3-row-expander'});
if (this.expandOnEnter) {
this.keyNav = new Ext.KeyNav(this.grid.getGridEl(), {
'enter' : this.onEnter,
scope: this
});
}
if (this.expandOnDblClick) {
grid.on('rowdblclick', this.onRowDblClick, this);
}
},
// @private
onDestroy: function() {
if(this.keyNav){
this.keyNav.disable();
delete this.keyNav;
}
/*
* A majority of the time, the plugin will be destroyed along with the grid,
* which means the mainBody won't be available. On the off chance that the plugin
* isn't destroyed with the grid, take care of removing the listener.
*/
var mainBody = this.grid.getView().mainBody;
if(mainBody){
mainBody.un('mousedown', this.onMouseDown, this);
}
},
// @private
onRowDblClick: function(grid, rowIdx, e) {
this.toggleRow(rowIdx);
},
onEnter: function(e) {
var g = this.grid;
var sm = g.getSelectionModel();
var sels = sm.getSelections();
for (var i = 0, len = sels.length; i < len; i++) {
var rowIdx = g.getStore().indexOf(sels[i]);
this.toggleRow(rowIdx);
}
},
getBodyContent : function(record, index){
if(!this.enableCaching){
return this.tpl.apply(record.data);
}
var content = this.bodyContent[record.id];
if(!content){
content = this.tpl.apply(record.data);
this.bodyContent[record.id] = content;
}
return content;
},
onMouseDown : function(e, t){
e.stopEvent();
var row = e.getTarget('.x-grid3-row');
this.toggleRow(row);
},
renderer : function(v, p, record){
p.cellAttr = 'rowspan="2"';
return '<div class="x-grid3-row-expander"> </div>';
},
beforeExpand : function(record, body, rowIndex){
if(this.fireEvent('beforeexpand', this, record, body, rowIndex) !== false){
if(this.tpl && this.lazyRender){
body.innerHTML = this.getBodyContent(record, rowIndex);
}
return true;
}else{
return false;
}
},
toggleRow : function(row){
if(typeof row == 'number'){
row = this.grid.view.getRow(row);
}
this[Ext.fly(row).hasClass('x-grid3-row-collapsed') ? 'expandRow' : 'collapseRow'](row);
},
expandRow : function(row){
if(typeof row == 'number'){
row = this.grid.view.getRow(row);
}
var record = this.grid.store.getAt(row.rowIndex);
var body = Ext.DomQuery.selectNode('tr:nth(2) div.x-grid3-row-body', row);
if(this.beforeExpand(record, body, row.rowIndex)){
this.state[record.id] = true;
Ext.fly(row).replaceClass('x-grid3-row-collapsed', 'x-grid3-row-expanded');
this.fireEvent('expand', this, record, body, row.rowIndex);
}
},
collapseRow : function(row){
if(typeof row == 'number'){
row = this.grid.view.getRow(row);
}
var record = this.grid.store.getAt(row.rowIndex);
var body = Ext.fly(row).child('tr:nth(1) div.x-grid3-row-body', true);
if(this.fireEvent('beforecollapse', this, record, body, row.rowIndex) !== false){
this.state[record.id] = false;
Ext.fly(row).replaceClass('x-grid3-row-expanded', 'x-grid3-row-collapsed');
this.fireEvent('collapse', this, record, body, row.rowIndex);
}
}
});
Ext.preg('rowexpander', Ext.ux.grid.RowExpander);
//backwards compat
Ext.grid.RowExpander = Ext.ux.grid.RowExpander;
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