/*
 * Ext JS Library 2.3.0
 * Copyright(c) 2006-2009, Ext JS, LLC.
 * licensing@extjs.com
 * 
 * http://extjs.com/license
 */


Ext.form.ComboBox=Ext.extend(Ext.form.TriggerField,{defaultAutoCreate:{tag:"input",type:"text",size:"24",autocomplete:"off"},listClass:'',selectedClass:'x-combo-selected',triggerClass:'x-form-arrow-trigger',shadow:'sides',listAlign:'tl-bl?',maxHeight:300,minHeight:90,triggerAction:'query',minChars:4,typeAhead:false,queryDelay:500,pageSize:0,selectOnFocus:false,queryParam:'query',loadingText:'Loading...',resizable:false,handleHeight:8,editable:true,allQuery:'',mode:'remote',minListWidth:70,forceSelection:false,typeAheadDelay:250,lazyInit:true,initComponent:function(){Ext.form.ComboBox.superclass.initComponent.call(this);this.addEvents('expand','collapse','beforeselect','select','beforequery');if(this.transform){this.allowDomMove=false;var s=Ext.getDom(this.transform);if(!this.hiddenName){this.hiddenName=s.name;}
if(!this.store){this.mode='local';var d=[],opts=s.options;for(var i=0,len=opts.length;i<len;i++){var o=opts[i],value=(o.hasAttribute?o.hasAttribute('value'):o.getAttributeNode('value').specified)?o.value:o.text;if(o.selected){this.value=value;}
d.push([value,o.text]);}
this.store=new Ext.data.SimpleStore({'id':0,fields:['value','text'],data:d});this.valueField='value';this.displayField='text';}
s.name=Ext.id();if(!this.lazyRender){this.target=true;this.el=Ext.DomHelper.insertBefore(s,this.autoCreate||this.defaultAutoCreate);Ext.removeNode(s);this.render(this.el.parentNode);}else{Ext.removeNode(s);}}
else if(Ext.isArray(this.store)){if(Ext.isArray(this.store[0])){this.store=new Ext.data.SimpleStore({fields:['value','text'],data:this.store});this.valueField='value';}else{this.store=new Ext.data.SimpleStore({fields:['text'],data:this.store,expandData:true});this.valueField='text';}
this.displayField='text';this.mode='local';}
this.selectedIndex=-1;if(this.mode=='local'){if(this.initialConfig.queryDelay===undefined){this.queryDelay=10;}
if(this.initialConfig.minChars===undefined){this.minChars=0;}}},onRender:function(ct,position){Ext.form.ComboBox.superclass.onRender.call(this,ct,position);if(this.hiddenName){this.hiddenField=this.el.insertSibling({tag:'input',type:'hidden',name:this.hiddenName,id:(this.hiddenId||this.hiddenName)},'before',true);this.el.dom.removeAttribute('name');}
if(Ext.isGecko){this.el.dom.setAttribute('autocomplete','off');}
if(!this.lazyInit){this.initList();}else{this.on('focus',this.initList,this,{single:true});}
if(!this.editable){this.editable=true;this.setEditable(false);}},initValue:function(){Ext.form.ComboBox.superclass.initValue.call(this);if(this.hiddenField){this.hiddenField.value=this.hiddenValue!==undefined?this.hiddenValue:this.value!==undefined?this.value:'';}},initList:function(){if(!this.list){var cls='x-combo-list';this.list=new Ext.Layer({shadow:this.shadow,cls:[cls,this.listClass].join(' '),constrain:false});var lw=this.listWidth||Math.max(this.wrap.getWidth(),this.minListWidth);this.list.setWidth(lw);this.list.swallowEvent('mousewheel');this.assetHeight=0;if(this.title){this.header=this.list.createChild({cls:cls+'-hd',html:this.title});this.assetHeight+=this.header.getHeight();}
this.innerList=this.list.createChild({cls:cls+'-inner'});this.innerList.on('mouseover',this.onViewOver,this);this.innerList.on('mousemove',this.onViewMove,this);this.innerList.setWidth(lw-this.list.getFrameWidth('lr'));if(this.pageSize){this.footer=this.list.createChild({cls:cls+'-ft'});this.pageTb=new Ext.PagingToolbar({store:this.store,pageSize:this.pageSize,renderTo:this.footer});this.assetHeight+=this.footer.getHeight();}
if(!this.tpl){this.tpl='<tpl for="."><div class="'+cls+'-item">{'+this.displayField+'}</div></tpl>';}
this.view=new Ext.DataView({applyTo:this.innerList,tpl:this.tpl,singleSelect:true,selectedClass:this.selectedClass,itemSelector:this.itemSelector||'.'+cls+'-item'});this.view.on('click',this.onViewClick,this);this.bindStore(this.store,true);if(this.resizable){this.resizer=new Ext.Resizable(this.list,{pinned:true,handles:'se'});this.resizer.on('resize',function(r,w,h){this.maxHeight=h-this.handleHeight-this.list.getFrameWidth('tb')-this.assetHeight;this.listWidth=w;this.innerList.setWidth(w-this.list.getFrameWidth('lr'));this.restrictHeight();},this);this[this.pageSize?'footer':'innerList'].setStyle('margin-bottom',this.handleHeight+'px');}}},getStore:function(){return this.store;},bindStore:function(store,initial){if(this.store&&!initial){this.store.un('beforeload',this.onBeforeLoad,this);this.store.un('load',this.onLoad,this);this.store.un('loadexception',this.collapse,this);if(!store){this.store=null;if(this.view){this.view.setStore(null);}}}
if(store){this.store=Ext.StoreMgr.lookup(store);this.store.on('beforeload',this.onBeforeLoad,this);this.store.on('load',this.onLoad,this);this.store.on('loadexception',this.collapse,this);if(this.view){this.view.setStore(store);}}},initEvents:function(){Ext.form.ComboBox.superclass.initEvents.call(this);this.keyNav=new Ext.KeyNav(this.el,{"up":function(e){this.inKeyMode=true;this.selectPrev();},"down":function(e){if(!this.isExpanded()){this.onTriggerClick();}else{this.inKeyMode=true;this.selectNext();}},"enter":function(e){this.onViewClick();this.delayedCheck=true;this.unsetDelayCheck.defer(10,this);},"esc":function(e){this.collapse();},"tab":function(e){this.onViewClick(false);return true;},scope:this,doRelay:function(foo,bar,hname){if(hname=='down'||this.scope.isExpanded()){return Ext.KeyNav.prototype.doRelay.apply(this,arguments);}
return true;},forceKeyDown:true});this.queryDelay=Math.max(this.queryDelay||10,this.mode=='local'?10:250);this.dqTask=new Ext.util.DelayedTask(this.initQuery,this);if(this.typeAhead){this.taTask=new Ext.util.DelayedTask(this.onTypeAhead,this);}
if(this.editable!==false&&!this.enableKeyEvents){this.el.on("keyup",this.onKeyUp,this);}},onDestroy:function(){if(this.dqTask){this.dqTask.cancel();this.dqTask=null;}
this.bindStore(null);Ext.destroy(this.resizer,this.view,this.pageTb,this.innerList,this.list);Ext.form.ComboBox.superclass.onDestroy.call(this);},unsetDelayCheck:function(){delete this.delayedCheck;},fireKey:function(e){var fn=function(ev){if(ev.isNavKeyPress()&&!this.isExpanded()&&!this.delayedCheck){this.fireEvent("specialkey",this,ev);}};if(this.inEditor&&Ext.isWebKit&&e.getKey()==e.TAB){fn.defer(10,this,[new Ext.EventObjectImpl(e)]);}else{fn.call(this,e);}},onResize:function(w,h){Ext.form.ComboBox.superclass.onResize.apply(this,arguments);if(this.list&&this.listWidth===undefined){var lw=Math.max(w,this.minListWidth);this.list.setWidth(lw);this.innerList.setWidth(lw-this.list.getFrameWidth('lr'));}},onEnable:function(){Ext.form.ComboBox.superclass.onEnable.apply(this,arguments);if(this.hiddenField){this.hiddenField.disabled=false;}},onDisable:function(){Ext.form.ComboBox.superclass.onDisable.apply(this,arguments);if(this.hiddenField){this.hiddenField.disabled=true;}},setEditable:function(value){if(value==this.editable){return;}
this.editable=value;if(!value){this.el.dom.setAttribute('readOnly',true);this.el.on('mousedown',this.onTriggerClick,this);this.el.addClass('x-combo-noedit');}else{this.el.dom.removeAttribute('readOnly');this.el.un('mousedown',this.onTriggerClick,this);this.el.removeClass('x-combo-noedit');}},onBeforeLoad:function(){if(!this.hasFocus){return;}
this.innerList.update(this.loadingText?'<div class="loading-indicator">'+this.loadingText+'</div>':'');this.restrictHeight();this.selectedIndex=-1;},onLoad:function(){if(!this.hasFocus){return;}
if(this.store.getCount()>0){this.expand();this.restrictHeight();if(this.lastQuery==this.allQuery){if(this.editable){this.el.dom.select();}
if(!this.selectByValue(this.value,true)){this.select(0,true);}}else{this.selectNext();if(this.typeAhead&&this.lastKey!=Ext.EventObject.BACKSPACE&&this.lastKey!=Ext.EventObject.DELETE){this.taTask.delay(this.typeAheadDelay);}}}else{this.onEmptyResults();}},onTypeAhead:function(){if(this.store.getCount()>0){var r=this.store.getAt(0);var newValue=r.data[this.displayField];var len=newValue.length;var selStart=this.getRawValue().length;if(selStart!=len){this.setRawValue(newValue);this.selectText(selStart,newValue.length);}}},onSelect:function(record,index){if(this.fireEvent('beforeselect',this,record,index)!==false){this.setValue(record.data[this.valueField||this.displayField]);this.collapse();this.fireEvent('select',this,record,index);}},getName:function(){var hf=this.hiddenField;return hf&&hf.name?hf.name:this.hiddenName||Ext.form.ComboBox.superclass.getName.call(this);},getValue:function(){if(this.valueField){return typeof this.value!='undefined'?this.value:'';}else{return Ext.form.ComboBox.superclass.getValue.call(this);}},clearValue:function(){if(this.hiddenField){this.hiddenField.value='';}
this.setRawValue('');this.lastSelectionText='';this.applyEmptyText();this.value='';},setValue:function(v){var text=v;if(this.valueField){var r=this.findRecord(this.valueField,v);if(r){text=r.data[this.displayField];}else if(this.valueNotFoundText!==undefined){text=this.valueNotFoundText;}}
this.lastSelectionText=text;if(this.hiddenField){this.hiddenField.value=v;}
Ext.form.ComboBox.superclass.setValue.call(this,text);this.value=v;},findRecord:function(prop,value){var record;if(this.store.getCount()>0){this.store.each(function(r){if(r.data[prop]==value){record=r;return false;}});}
return record;},onViewMove:function(e,t){this.inKeyMode=false;},onViewOver:function(e,t){if(this.inKeyMode){return;}
var item=this.view.findItemFromChild(t);if(item){var index=this.view.indexOf(item);this.select(index,false);}},onViewClick:function(doFocus){var index=this.view.getSelectedIndexes()[0];var r=this.store.getAt(index);if(r){this.onSelect(r,index);}
if(doFocus!==false){this.el.focus();}},restrictHeight:function(){this.innerList.dom.style.height='';var inner=this.innerList.dom;var pad=this.list.getFrameWidth('tb')+(this.resizable?this.handleHeight:0)+this.assetHeight;var h=Math.max(inner.clientHeight,inner.offsetHeight,inner.scrollHeight);var ha=this.getPosition()[1]-Ext.getBody().getScroll().top;var hb=Ext.lib.Dom.getViewHeight()-ha-this.getSize().height;var space=Math.max(ha,hb,this.minHeight||0)-this.list.shadowOffset-pad-5;h=Math.min(h,space,this.maxHeight);this.innerList.setHeight(h);this.list.beginUpdate();this.list.setHeight(h+pad);this.list.alignTo(this.wrap,this.listAlign);this.list.endUpdate();},onEmptyResults:function(){this.collapse();},isExpanded:function(){return this.list&&this.list.isVisible();},selectByValue:function(v,scrollIntoView){if(v!==undefined&&v!==null){var r=this.findRecord(this.valueField||this.displayField,v);if(r){this.select(this.store.indexOf(r),scrollIntoView);return true;}}
return false;},select:function(index,scrollIntoView){this.selectedIndex=index;this.view.select(index);if(scrollIntoView!==false){var el=this.view.getNode(index);if(el){this.innerList.scrollChildIntoView(el,false);}}},selectNext:function(){var ct=this.store.getCount();if(ct>0){if(this.selectedIndex==-1){this.select(0);}else if(this.selectedIndex<ct-1){this.select(this.selectedIndex+1);}}},selectPrev:function(){var ct=this.store.getCount();if(ct>0){if(this.selectedIndex==-1){this.select(0);}else if(this.selectedIndex!=0){this.select(this.selectedIndex-1);}}},onKeyUp:function(e){var k=e.getKey();if(this.editable!==false&&(k==e.BACKSPACE||!e.isSpecialKey())){this.lastKey=k;this.dqTask.delay(this.queryDelay);}
Ext.form.ComboBox.superclass.onKeyUp.call(this,e);},validateBlur:function(){return!this.list||!this.list.isVisible();},initQuery:function(){this.doQuery(this.getRawValue());},beforeBlur:function(){var val=this.getRawValue();if(this.forceSelection){if(val.length>0&&val!=this.emptyText){this.el.dom.value=this.lastSelectionText===undefined?'':this.lastSelectionText;this.applyEmptyText();}else{this.clearValue();}}else{var rec=this.findRecord(this.displayField,val);if(rec){val=rec.get(this.valueField||this.displayField);}
this.setValue(val);}},doQuery:function(q,forceAll){if(q===undefined||q===null){q='';}
var qe={query:q,forceAll:forceAll,combo:this,cancel:false};if(this.fireEvent('beforequery',qe)===false||qe.cancel){return false;}
q=qe.query;forceAll=qe.forceAll;if(forceAll===true||(q.length>=this.minChars)){if(this.lastQuery!==q){this.lastQuery=q;if(this.mode=='local'){this.selectedIndex=-1;if(forceAll){this.store.clearFilter();}else{this.store.filter(this.displayField,q);}
this.onLoad();}else{this.store.baseParams[this.queryParam]=q;this.store.load({params:this.getParams(q)});this.expand();}}else{this.selectedIndex=-1;this.onLoad();}}},getParams:function(q){var p={};if(this.pageSize){p.start=0;p.limit=this.pageSize;}
return p;},collapse:function(){if(!this.isExpanded()){return;}
this.list.hide();Ext.getDoc().un('mousewheel',this.collapseIf,this);Ext.getDoc().un('mousedown',this.collapseIf,this);this.fireEvent('collapse',this);},collapseIf:function(e){if(!e.within(this.wrap)&&!e.within(this.list)){this.collapse();}},expand:function(){if(this.isExpanded()||!this.hasFocus){return;}
this.list.alignTo(this.wrap,this.listAlign);this.list.show();if(Ext.isGecko2){this.innerList.setOverflow('auto');}
Ext.getDoc().on('mousewheel',this.collapseIf,this);Ext.getDoc().on('mousedown',this.collapseIf,this);this.fireEvent('expand',this);},onTriggerClick:function(){if(this.disabled){return;}
if(this.isExpanded()){this.collapse();this.el.focus();}else{this.onFocus({});if(this.triggerAction=='all'){this.doQuery(this.allQuery,true);}else{this.doQuery(this.getRawValue());}
this.el.focus();}}});Ext.reg('combo',Ext.form.ComboBox);