DataSet_wev8.js
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var datasetQueue = [];
function $d(str, callbackFn){
if(!str){ return; }
if(str.indexOf(".") != -1){
var tmpArr = str.split(".");
var dSetName = tmpArr[0];
var dKey = tmpArr[1];
if(typeof(Mobile_NS.DataSet) == "undefined"){
datasetQueue.push({"dSetName" : dSetName, "dKey" : dKey, "callbackFn" : callbackFn});
return;
}
var dataSet = Mobile_NS.DataSet.getDataSet(dSetName);
if(!dataSet){
datasetQueue.push({"dSetName" : dSetName, "dKey" : dKey, "callbackFn" : callbackFn});
return;
}
if(!dataSet.initialize){
datasetQueue.push({"dSetName" : dSetName, "dKey" : dKey, "callbackFn" : callbackFn});
return;
}else{
var obj = new Object();
obj.value = dataSet.getDataByKey(dKey);
callbackFn.call(obj);
}
}
}
function DataSet(name, initialize, data){
this.name = name;
this.initialize = initialize;
this.dataObj = data;
this.init();
}
DataSet.prototype.init = function(){
var that = this;
//填充页面上引用的值
$("[data-set='"+that.name+"'],[data-wev]").each(function(){
var dataKey;
var dataWev = $(this).attr("data-wev");
if(dataWev && dataWev.indexOf(".") != -1){
var tmpArr = dataWev.split(".");
var dSetName = tmpArr[0];
if(dSetName == that.name){
dataKey = tmpArr[1];
}else{
return;
}
}else{
dataKey = $(this).attr("data-key");
}
var dataValue = that.getDataByKey(dataKey);
var dataFill = $(this).attr("data-fill");
if(!dataFill){
if(this.tagName.toLowerCase() == "img"){
dataFill = "attr:src";
}else{
dataFill = "text";
}
}
if(dataFill.indexOf("attr:") == 0){
var attrName = dataFill.substring("attr:".length);
$(this).attr(attrName, dataValue);
}else{
$(this).html(dataValue);
}
});
//回调dataset队列
for(var i = (datasetQueue.length-1); i>=0; i--){
var oneQueue = datasetQueue[i];
if(oneQueue["dSetName"] == that.name){
datasetQueue.splice(i, 1);
var dKey = oneQueue["dKey"];
var callbackFn = oneQueue["callbackFn"];
var obj = new Object();
obj.value = that.getDataByKey(dKey);
callbackFn.call(obj);
}
}
};
DataSet.prototype.getDataByKey = function(key){
if(!key){
return "";
}
var dataObj = this.dataObj;
if($.isArray(dataObj)){
dataObj = dataObj[0];
}
if($.isPlainObject(dataObj)){
var value = "";
for(var key2 in dataObj){
if(key2.toLowerCase() == key.toLowerCase()){
value = dataObj[key2];
break;
}
}
return value;
}else{
return "";
}
};
Mobile_NS.DataSet = {};
Mobile_NS.DataSet.dArray = [];
Mobile_NS.DataSet.addDataSet = function(name, init, data){
var dataSet = new DataSet(name, init, data);
this.dArray.push(dataSet);
};
Mobile_NS.DataSet.getDataSet = function(name){
var result = null;
for(var i = 0; i < this.dArray.length; i++){
var dataSet = this.dArray[i];
if(dataSet.name == name){
result = dataSet;
break;
}
}
return result;
};
Mobile_NS.DataSet.onload = function(name, init, data){
this.addDataSet(name, init, data);
};