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,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">&#160;</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);}}});