RowExpander_wev8.js
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/*
* Ext JS Library 2.0.2
* Copyright(c) 2006-2008, Ext JS, LLC.
* licensing@extjs.com
*
* http://extjs.com/license
*/
Ext.grid.RowExpander = function(config){
Ext.apply(this, config);
this.addEvents({
beforeexpand : true,
expand: true,
beforecollapse: true,
collapse: true
});
Ext.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 = {};
};
Ext.extend(Ext.grid.RowExpander, Ext.util.Observable, {
header: "",
width: 20,
sortable: false,
fixed:true,
menuDisabled:true,
dataIndex: '',
id: 'expander',
lazyRender : true,
enableCaching: true,
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', function(){
view.mainBody.on('mousedown', this.onMouseDown, this);
}, this);
},
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){
if(t.className == 'x-grid3-row-expander'){
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('beforcollapse', 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);
}
}
});