var objCache = { };//值對(duì)象集數(shù)組
var curid;         //當(dāng)前的id
var initConditions = {properties:[],operators:[],values:[],page:1,size:12};
var conditions = initConditions;//條件對(duì)象，對(duì)應(yīng)于java中的com.htxx.service.Condition對(duì)象

//********列表框操作函數(shù)**********

//function:將查詢(xún)結(jié)果填充到頁(yè)面的列表框中，并實(shí)現(xiàn)翻頁(yè)
//parameters:
//       tbodyid:必填參數(shù)，tbody對(duì)象的id
//       resultset:查詢(xún)結(jié)果的結(jié)果集對(duì)象，該對(duì)象對(duì)應(yīng)java中的com.htxx.service.ResultSet對(duì)象
//       func:每行要執(zhí)行的一個(gè)函數(shù)，有id(該行的行號(hào))和obj(該行的值對(duì)象)2個(gè)參數(shù)
fillResult = function(tbodyid, resultset, func){
	// Fill the list of table
	fillTable(tbodyid, resultset.collection, func);
	// Fill the objCache
	setObjCache(resultset.collection);
    // Set tfoot and condition object
	dwr.util.setValues(resultset,{prefix:tbodyid});
	var condition = resultset.condition;
	if(condition===null){ condition = initConditions;}
  	condition["totalRows"] = resultset.totalRows;
	condition["totalPages"] = resultset.totalPages;
	conditions[tbodyid] = condition;
};

//function:用一個(gè)collection去填充一個(gè)頁(yè)面的列表框
//parameters:
//       tbodyid:必填參數(shù)，tbody對(duì)象的id
//       resultset:查詢(xún)結(jié)果的結(jié)果集對(duì)象
//       func:每行要執(zhí)行的一個(gè)函數(shù)，有id(該行的行號(hào)，是用0填充的3位的字符串)和obj(該行的值對(duì)象)2個(gè)參數(shù)
fillTable = function(tbodyid, collection, func){
	if(!collection||collection===null){collection=[];}
	if(!tbodyid){
		dwr.util._debug("Not set the value of 'tbodyid'!");return;
	}
	var prefix, prefixDot="";
	if(tbodyid!=='tbody'){prefix=tbodyid;prefixDot=tbodyid+".";}
	// Delete all the rows except for the "pattern" row
	dwr.util.removeAllRows(tbodyid, { filter:function(tr) {
      return (tr.id != prefixDot+"pattern");
    }});
    // Create a new set cloned from the pattern row
    var obj, id;
    var objs = collection;
    for (var i = 0; i < objs.length; i++) {
    	obj = objs[i];
    	id = i.toString();id=("000"+id).substr(id.length);
    	dwr.util.cloneNode(prefixDot+"pattern", { idSuffix:id });
    	
    	// Execute a function in each row
    	if(func){func(id,obj);}
    	
    	// Set the rownum objects
    	obj['rownum'] = i+1;
    	setValues(obj,{ prefix:prefix, postfix:id });
    	$(prefixDot+"pattern"+id).style.display = "";
    }
};

//function:用頁(yè)面緩存刷新列表框
//parameters:
//    tbodyid:必填參數(shù)，tbody對(duì)象的id
//    func:每行要執(zhí)行的一個(gè)函數(shù)，有id(該行的行號(hào))和obj(該行的值對(duì)象)2個(gè)參數(shù)
fillTableWithCache = function(tbodyid,func){
	var resultset = new ResultSet();
	dwr.util.getValues(resultset);
	resultset.condition = conditions;
	
	var collection = [];
	for(var i = 0; i < objCache.length; i++){
		collection.push(objCache[i]);
	}
	resultset.collection = collection;
	fillResult(tbodyid,resultset,func);
};

//function:單擊列表框中某行時(shí)所做的操作
clickItemTr = function(){
};

//************翻頁(yè)操作函數(shù)*************

//function:翻到首頁(yè)
//parameters:
//     tbodyid:必填參數(shù)，tbody對(duì)象的id
//     func:執(zhí)行查詢(xún)的函數(shù)，通常為init()
first = function(tbodyid, func) {
  var condition = conditions[tbodyid];
  condition.page = 1;
  conditions[tbodyid] = condition;
  func(condition);
};

//function:翻到前一頁(yè)
//parameters:
//     tbodyid:必填參數(shù)，tbody對(duì)象的id
//     func:執(zhí)行查詢(xún)的函數(shù)，通常為init()
prior = function(tbodyid, func) {
  var condition = conditions[tbodyid];
  if(condition.page===1){
  	alert("this is the first page!");
  }else{
  	condition.page = condition.page - 1;
  	conditions[tbodyid] = condition;
  	func(condition);
  }
};

//function:翻到后一頁(yè)
//parameters:
//     tbodyid:必填參數(shù)，tbody對(duì)象的id
//     func:執(zhí)行查詢(xún)的函數(shù)，通常為init()
next = function(tbodyid, func) {
  var condition = conditions[tbodyid];
  if(condition.page===condition.totalPages){
  	alert("this is the last page!");
  }else{
  	condition.page = condition.page + 1;
  	conditions[tbodyid] = condition;
  	func(condition);
  }
};

//function:翻到末頁(yè)
//parameters:
//     tbodyid:必填參數(shù)，tbody對(duì)象的id
//     func:執(zhí)行查詢(xún)的函數(shù)，通常為init()
last = function(tbodyid, func) {
  var condition = conditions[tbodyid];
  condition.page = condition.totalPages;
  conditions[tbodyid] = condition;
  func(condition);
};

//function:翻到指定頁(yè)
//parameters:
//     tbodyid:必填參數(shù)，tbody對(duì)象的id
//     func:執(zhí)行查詢(xún)的函數(shù)，通常為init()
topage = function(tbodyid, func) {
  var condition = conditions[tbodyid];
  var page = dwr.util.getValue("btnGoto",{prefix:tbodyid});
  if(page<1||page>condition.totalPages){
  	alert("the page you input is out of range!");
  }else{
  	condition.page = page;
  	conditions[tbodyid] = condition;
  	func(condition);
  }
};

//**********DWR重新實(shí)現(xiàn)函數(shù)*******************

//function: 重新實(shí)現(xiàn)了dwr.util.setValues，但增加了后綴(postfix)的功能
//parameters:
//     map:必填參數(shù)，值對(duì)象
//     options:選項(xiàng)，如果設(shè)置prefix屬性則設(shè)置前綴，如果設(shè)置postfix屬性則設(shè)置后綴。
setValues = function(map, options) {
  var prefixes = [];
  if (options && options.prefix) {prefixes.push(options.prefix);}
  var postfix = null ;
  if (options && options.postfix) {postfix = options.postfix;}
  _getDataProperties(map, prefixes, postfix);
};

//function: 重新實(shí)現(xiàn)了dwr.util._getDataProperties，但增加了處理Date類(lèi)型的功能（原函數(shù)無(wú)法正確將日期按規(guī)定格式顯示在頁(yè)面）
//parameters:
//     map:必填參數(shù)，值對(duì)象
//     prefixes:前綴
//     postfix:后綴
_getDataProperties = function(map, prefixes, postfix) {
  for (var property in map) {
  	// Only recurse into plain objects, ie not functions, arrays, etc
    if (dwr.util._isObject(map[property]) && !dwr.util._isArray(map[property]) && !dwr.util._isDate(map[property])) {
      var prefixClone = [];
      for (var i = 0; i < prefixes.length; i++) {
        prefixClone.push(prefixes[i]);
      }
      prefixClone.push(property);
      _getDataProperties(map[property], prefixClone, postfix);
    } else {
      var nestedProperty = property;
      if (prefixes.length > 0) {
        nestedProperty = (prefixes.join(".")) + "." + property;
      }
      
      if(postfix!==null){nestedProperty = nestedProperty + postfix;}
      
      // Are there any elements with that id or name
      if (dwr.util.byId(nestedProperty) !== null || document.getElementsByName(nestedProperty).length >= 1) {
        if(dwr.util._isDate(map[property])){
        	var d = map[property];
        	var s = d.getYear()+"-"+(d.getMonth()+1)+"-"+d.getDate();
        	dwr.util.setValue(nestedProperty, s);
        }else{
        	dwr.util.setValue(nestedProperty, map[property]);
        }
      }
    }
  }
};

//******************Cache操作函數(shù)*******************

//function:將結(jié)果集按數(shù)組的形式填入到objCache中
//parameters:collection 結(jié)果集
setObjCache = function(collection){
	if(!collection||collection===null){collection=[];}
	var obj, id;
    var objs = collection;
    for (var i = 0; i < objs.length; i++) {
    	obj = objs[i];
    	id = i.toString();id=("000"+id).substr(id.length);
    	objCache[id] = obj;
    }
};

//function:得到當(dāng)前值對(duì)象
getCurObj = function(){
	return objCache[curid];
};

//function:設(shè)置當(dāng)前值對(duì)象
//parameters:eleid 頁(yè)面tr對(duì)象的id，其后3位為行號(hào)
//return:返回當(dāng)前值對(duì)象
setCurrent = function(eleid){
	eleid = eleid.substring(eleid.length-3);
	curid = eleid;
	return getCurObj;
};

//function:得到當(dāng)前值對(duì)象序號(hào)
getCurrent = function(){
	return curid;
};

//function:得到某行的值對(duì)象
//parameters:eleid 頁(yè)面tr對(duì)象的id，其后3位為行號(hào)
//return:返回值對(duì)象
getObj = function(eleid) {
  return objCache[eleid.substring(eleid.length-3)];
};

//function:為單行編輯框中的select對(duì)象設(shè)置可選項(xiàng)，實(shí)際上是重新實(shí)現(xiàn)了dwr.util.addOptions，為其增加了一個(gè)“Please select”行
//parameters:
//    eleid:select對(duì)象的id
//    data:可選項(xiàng)的內(nèi)容，應(yīng)當(dāng)是一個(gè)集合對(duì)象
//    valueprop:作為option對(duì)象的value的值對(duì)象屬性名
//    textprop:作為option對(duì)象的text的值對(duì)象屬性名
addOptions = function(eleid, data, valueprop, textprop) {
  dwr.util.addOptions(eleid, ['<--Please select-->']);
  dwr.util.addOptions(eleid, data, valueprop, textprop);
};

//******************單行編輯框操作函數(shù)*********************

//function:當(dāng)從列表框中選擇一行記錄以后，將該行記錄顯示在一個(gè)單行編輯框中
//parameters:
//    eleid:頁(yè)面tr對(duì)象的id，其后3位為行號(hào)
//    prefix:前綴
editObj = function(eleid, prefix) {
  var obj = setCurrent(eleid);
  setValues(obj,{ prefix:prefix });
  return obj;
};

//function:保存單行編輯框中的信息，該函數(shù)實(shí)現(xiàn)了dwr的批處理功能
//parameters:
//    obj:值對(duì)象
//    func:執(zhí)行保存的函數(shù)
saveObj = function(obj, func) {
  dwr.engine.beginBatch();
  if(func(obj)){
  	setValues(obj);
  	}
  dwr.engine.endBatch();
  objCache[curid] = obj;
};

//function:從列表框中刪除一行數(shù)據(jù)
//parameters:
//    eleid 頁(yè)面tr對(duì)象的id，其后3位為行號(hào)
//    tbodyid:必填參數(shù)，tbody對(duì)象的id
//    func:執(zhí)行刪除的函數(shù)
delObj = function(eleid, tbodyid, func) {
  eleid = eleid.substring(eleid.length-3);
  var obj = objCache[eleid];
  dwr.engine.beginBatch();
  if(func(obj)){
  	$(tbodyid).deleteRow(eleid);
  	}
  dwr.engine.endBatch();
};

//*************輔助函數(shù)*****************

//function:彈出對(duì)話框，顯示某個(gè)值的內(nèi)容或某個(gè)對(duì)象的所有屬性的值
//parameters:value 要顯示的值
alertValue = function(value){
	if(value!==null&&typeof value == 'object') {alert(dwr.util.toDescriptiveString(value, 2));}
	else{ alert(value);}
};

//function:得到一個(gè)iframe包含的網(wǎng)頁(yè)，以便于對(duì)該網(wǎng)頁(yè)進(jìn)行操作
//parameters:ifr 一個(gè)iframe
//return:該iframe所包含的網(wǎng)頁(yè)
ifrwindow = function(ifr){
	if(ifr.window){return ifr.window;}
  	if(ifr.contentWindow){return ifr.contentWindow;}
  	return null;
};