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broadcast.js
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/*
* @Author: huzc
* @Date: 2015-01-27 09:45:16
* @Last Modified by: Administrator
* @Last Modified time: 2015-06-08 10:29:09
*/
(function(root, factory){
'use strict';
// CommonJS
if (typeof exports === 'object' && module){
module.exports = factory();
// AMD
} else if (typeof define === 'function' && define.amd){
define(factory);
// Browser
} else {
root.BroadCast = factory();
}
}( ( typeof window === 'object' && window ) || this, function(){
var BroadCast = { handlers:{},windowList:[]};
BroadCast.storage={};
BroadCast.timeStep=5000;
window.BroadCast=BroadCast;
var ie678 = !+"\v1";
/**
* [on 收听广播]
* @author huzc
* @date 2015-06-06
* @param {[type]} eventType [广播频道]
* @param {[type]} handler [收到的广播数据]
* @return {[type]} [无]
*/
BroadCast.on = function(eventType, handler) {
if(!this.handlers[eventType]) {
this.handlers[eventType] = [];
}
this.handlers[eventType].push(handler);
return this;
}
/**
* [emit 发送广播]
* @author huzc
* @date 2015-06-06
* @param {[type]} eventType [发送广播频道]
* @param {[type]} data [发送广播数据]
* @return {[type]} [无]
*/
BroadCast.emit = function(eventType,data) {
if(!data){
data={};
}
BroadCast.handlers[eventType]=[];
data["_random"]=Math.random();
BroadCast.emitToWindow(window,eventType,data);
//BroadCast.emitToFrames(window.top,eventType,data);
}
/**
* [emitToWindow 发送广播到其他窗口,内部函数]
* @author huzc
* @date 2015-06-06
* @param {[type]} win [description]
* @param {[type]} eventType [description]
* @param {[type]} data [description]
* @return {[type]} [description]
*/
BroadCast.emitToWindow=function(win,eventType,data){
if(typeof(win)!="object"){return}
var oldData=win.localStorage.getItem(eventType);
if(!oldData){var oldobj={}}
else{
try{var oldobj=JSON.parse(oldData);}
catch(e){var oldobj={};}
}
if(typeof(data)=="string"||typeof(data)=="number"){
data=data+"";
var obj={
EMIT_NAME:eventType,
value:data,
url:location.href
};
}
else if(typeof(data)=="object"){
data.EMIT_NAME=eventType;
data.url=location.href;
var obj=data;
}
var str=JSON.stringify(obj);
win.localStorage.setItem(eventType,str);
win.postMessage(str,"*");
if(ie678){
BroadCast.SetCookie(eventType,str);
}
}
BroadCast.on("ask-online",function(data){
BroadCast.emit("anwser-online",{"data":"online"});
});
/**
* [count 统计有哪些听众]
* @author huzc
* @date 2015-06-06
* @param {Function} fn [回调,参数为听众信息的数组]
* @return {[type]} [无]
*/
BroadCast.count=function(fn,flag){
var A=[];
BroadCast.on("anwser-online",function(data){
A.push(data);
});
BroadCast.emit("ask-online",{"data":"hello"});
if(flag){
fn&&fn(A);
}else{
setTimeout(function(){
fn&&fn(A);
},100);
}
}
/**
* [checkPage 检查页面是否存在]
* @author huzc
* @date 2015-06-08
* @param {[type]} url [description]
* @param {Function} fn [description]
* @return {[type]} [description]
*/
BroadCast.checkPage=function(url,fn){
var List=[];
BroadCast.count(function(A){
if(A[i].url.indexOf(url)){
List.push(A[i]);
}
},false);
fn&&fn(List);
}
BroadCast.emitToWindowList=function(windows,eventType,data){
var L=windows.length;
for(var i=0;i<=L-1;i++){
BroadCast.emitToWindow(windows[i],eventType,data);
}
}
/**
* [getFrames 统计iframe信息]
* @author huzc
* @date 2015-06-06
* @param {[type]} win [window对象,需要需要的页面window对象]
* @return {[type]} [description]
*/
BroadCast.getFrames=function(win){
var self=this;
var A=[];
var L=win.frames.length;
for(var i=0;i<=L-1;i++){
(function(k){
A.push(win.frames[k]);
A.concat(self.getFrames(win.frames[k]));
})(i);
}
return A;
}
/**
* [emitToFrames 向指定窗口发送广播]
* @author huzc
* @date 2015-06-06
* @param {[type]} win [窗口window对象]
* @param {[type]} eventType [广播频道]
* @param {[type]} data [广播数据]
* @return {[type]} [无]
*/
BroadCast.emitToFrames=function(win,eventType,data){
var A=this.getFrames(win);
var L=A.length;
for(var i=0;i<=L-1;i++)
{
BroadCast.emitToWindow(A[i],eventType,data);
}
}
BroadCast.listenOpened=function(fn){
BroadCast.BindEvent("message",function(evt){
var data=evt.data;
var obj=JSON.parse(data);
if(obj.type=="windowList"){
var A=BroadCast.windowList.length;
for(var i=0;i<=L-1;i++){
if(BroadCast.windowList[i].id==obj.id) {
fn(BroadCast.windowList[i].window);
break;
}
}
}
});
}
BroadCast.BindEvent=function(obj,name,fn){
if(obj.addEventListener){
obj.addEventListener(name,fn,false);
} else if(obj.attachEvent){
obj.attachEvent("on"+name,fn);
}
}
BroadCast.UnBindEvent=function(obj,name,fn){
if(obj.removeEventListener){
obj.removeEventListener(name,fn,false);
}
else if(obj.attachEvent){
obj.detachEvent("on"+name,fn);
}
}
BroadCast.getOpenWindow=function(id,fn){
var A=BroadCast.windowList;
var L=A.length;
for(var i=0;i<=L-1;i++){
if(A[i].id===id){
fn(A[i].window);
break;
}
}
}
BroadCast.getDefaultStorage=function(){
var storage={};
for(var x in window.localStorage){
storage[x]=window.localStorage.getItem(x);
}
BroadCast.storage=storage;
return storage;
}
BroadCast.delCookie=function(name)//删除cookie
{
document.cookie = name+"=;expires="+(new Date(0)).toGMTString();
}
BroadCast.getCookie=function(objName){//获取指定名称的cookie的值
var arrStr = document.cookie.split("; ");
for(var i = 0;i < arrStr.length;i ++){
var temp = arrStr[i].split("=");
if(temp[0] == objName){
return unescape(temp[1]);
}
}
}
BroadCast.addCookie=function(objName,objValue,objHours){
var str = objName + "=" + escape(objValue);
if(!objHours){
objHours=24;
}
if(objHours > 0){
var date = new Date();
var ms = objHours*3600*1000;
date.setTime(date.getTime() + ms);
str += "; expires=" + date.toGMTString();
}
document.cookie = str;
}
BroadCast.SetCookie=function(name,value)//两个参数,一个是cookie的名子,一个是值
{
var Days = 30; //此 cookie 将被保存 30 天
var exp = new Date(); //new Date("December 31, 9998");
exp.setTime(exp.getTime() + Days*24*60*60*1000);
document.cookie = name + "="+ escape (value) + ";expires=" + exp.toGMTString();
}
BroadCast.cookietoJSON=function(data)
{
var obj={};
var A = data.split("; ");
for(var i = 0;i < A.length;i ++){
var temp = A[i].split("=");
obj[temp[0]]=temp[1];
}
return obj;
}
BroadCast.cookies=document.cookie;
BroadCast.timeStep=1000;
var ieVersion = eval("''+/*@cc_on"+" @_jscript_version@*/-0")*1;
var ie67=(ieVersion === 5.6)||(ieVersion === 5.7);
BroadCast.cookieEvent=function(fn){
if(document.referrer){return}
if(ieVersion === 5.9){return}
if(!!window.addEventListener){return}
setInterval(function(){
var Flag=(document.cookie!= BroadCast.cookies);
Flag=Flag&&(!BroadCast.BasePage||BroadCast.getCookie==false)||ie67;
if(Flag){
var localCookie=BroadCast.cookietoJSON(BroadCast.cookies);
var realCookie=BroadCast.cookietoJSON(document.cookie);
for(var x in realCookie){
if(localCookie[x]!==realCookie[x]){
var realCookieobj=JSON.parse(unescape(realCookie[x]));
realCookieobj.EMIT_NAME=realCookieobj.name;
var evt=realCookieobj;
fn(evt);
break;
}
}
BroadCast.cookies=document.cookie;
}
},BroadCast.timeStep);
}
BroadCast.BindEvent(window,"message",function(evt){
setTimeout(function(){
evt=evt||window.event;
var obj=JSON.parse(evt.data);
var A=BroadCast.handlers[obj.EMIT_NAME];
if(A){
var L=A.length;
for(var i=0;i<=L-1;i++)
{
A[i](obj);
}
}
},200);
});
BroadCast.BindEvent(window,"storage",function(evt){
evt=evt||window.event;
var key=evt.key;
if(!evt.newValue){return}
try{
var Eventobj=JSON.parse(evt.newValue);
}catch(e){
return;
}
Eventobj.EMIT_NAME=key;
var A=BroadCast.handlers[key];
if(A) {
var L=A.length;
for(var i=0;i<=L-1;i++)
{
A[i](Eventobj);
}
}
});
// var handle=ie678?document:window;
//IE8下发现,evt.key无效,evt下的数据只有url有价值
BroadCast.BindEvent(document,"storagecommit",function(evt){
return;
evt=evt||window.event;
var str="";
for(var x in evt)
{
str=str+";\n"+(x+","+evt[x]);
}
if(!evt.key){return}
var A=BroadCast.handlers[evt.key];
if(A)
{
var L=A.length;
for(var i=0;i<=L-1;i++)
{
A[i](evt);
}
}
});
BroadCast.getDefaultStorage();
//IE8加的
BroadCast.BindEvent(document,"storage",function(evt){
setTimeout(function(){
for(var x in window.localStorage){
var Item=window.localStorage.getItem(x);
if(BroadCast.storage[x]!==Item){
var obj=JSON.parse(Item);
obj.EMIT_NAME=x;
var A=BroadCast.handlers[x];
if(A){
var L=A.length;
for(var i=0;i<=L-1;i++){
A[i](obj);
}
}
BroadCast.storage[x]=Item;
break;
}
}
},0);
});
BroadCast.cookieEvent(function(evt){
var A=BroadCast.handlers[evt.key];
if(A){
var L=A.length;
for(var i=0;i<=L-1;i++){
A[i](evt);
}
}
});
return BroadCast;
}));