Ext.namespace('Ext.ux.Andrie');Ext.ux.Andrie.pPageSize=function(config){Ext.apply(this,config);};Ext.extend(Ext.ux.Andrie.pPageSize,Ext.util.Observable,{beforeText:'Show',afterText:'items',addBefore:'-',addAfter:null,dynamic:false,variations:[5,10,20,50,100,200,500,1000],comboCfg:undefined,init:function(pagingToolbar){this.pagingToolbar=pagingToolbar;this.pagingToolbar.pageSizeCombo=this;this.pagingToolbar.setPageSize=this.setPageSize.createDelegate(this);this.pagingToolbar.getPageSize=function(){return this.pageSize;}
this.pagingToolbar.on('render',this.onRender,this);},addSize:function(value){if(value>0){this.sizes.push([value]);}},updateStore:function(){if(this.dynamic){var middleValue=this.pagingToolbar.pageSize,start;middleValue=(middleValue>0)?middleValue:1;this.sizes=[];var v=this.variations;for(var i=0,len=v.length;i<len;i++){this.addSize(middleValue-v[v.length-1-i]);}
this.addToStore(middleValue);for(var i=0,len=v.length;i<len;i++){this.addSize(middleValue+v[i]);}}else{if(!this.staticSizes){this.sizes=[];var v=this.variations;var middleValue=0;for(var i=0,len=v.length;i<len;i++){this.addSize(middleValue+v[i]);}
this.staticSizes=this.sizes.slice(0);}else{this.sizes=this.staticSizes.slice(0);}}
this.combo.store.loadData(this.sizes);this.combo.collapse();this.combo.setValue(this.pagingToolbar.pageSize);},setPageSize:function(value,forced){var pt=this.pagingToolbar;this.combo.collapse();value=parseInt(value)||parseInt(this.combo.getValue());value=(value>0)?value:1;if(value==pt.pageSize){return;}else if(value<pt.pageSize){pt.pageSize=value;var ap=Math.round(pt.cursor/value)+1;var cursor=(ap-1)*value;var store=pt.store;if(cursor>store.getTotalCount()){this.pagingToolbar.pageSize=value;this.pagingToolbar.doLoad(cursor-value);}else{store.suspendEvents();for(var i=0,len=cursor-pt.cursor;i<len;i++){store.remove(store.getAt(0));}
while(store.getCount()>value){store.remove(store.getAt(store.getCount()-1));}
store.resumeEvents();store.fireEvent('datachanged',store);pt.cursor=cursor;var d=pt.getPageData();pt.afterTextEl.el.innerHTML=String.format(pt.afterPageText,d.pages);pt.field.dom.value=ap;pt.first.setDisabled(ap==1);pt.prev.setDisabled(ap==1);pt.next.setDisabled(ap==d.pages);pt.last.setDisabled(ap==d.pages);pt.updateInfo();}}else{this.pagingToolbar.pageSize=value;this.pagingToolbar.doLoad(Math.floor(this.pagingToolbar.cursor/this.pagingToolbar.pageSize)*this.pagingToolbar.pageSize);}
this.updateStore();},onRender:function(){this.combo=Ext.ComponentMgr.create(Ext.applyIf(this.comboCfg||{},{store:new Ext.data.SimpleStore({fields:['pageSize'],data:[]}),displayField:'pageSize',valueField:'pageSize',mode:'local',triggerAction:'all',width:50,xtype:'combo'}));this.combo.on('select',this.setPageSize,this);this.updateStore();if(this.addBefore){this.pagingToolbar.add(this.addBefore);}
if(this.beforeText){this.pagingToolbar.add(this.beforeText);}
this.pagingToolbar.add(this.combo);if(this.afterText){this.pagingToolbar.add(this.afterText);}
if(this.addAfter){this.pagingToolbar.add(this.addAfter);}}})