(function () {
window.Storage = (function () {
//有关flash的
var flash = {
id: "Storage_Flash_",
path: "/Resource/Js/storage-flash.swf",
cache: function () { return document.getElementById(this.id) },
insert: function () {
if (this.cache()) { return true; } //如果有了不用新建了
var html = [];
try {//解决遨游的一个bug
if (external.max_language_id != undefined) {
this.path += "?random=" + Math.random();
}
}
catch (ex) { }
if ("ActiveXObject" in window) {
html.push("<object classid='clsid:d27cdb6e-ae6d-11cf-96b8-444553540000' " +
"codebase='http://download.macromedia.com/pub/shockwave/cabs/flash/" +
"swflash.cab#version=10,0,0,0' id='" + this.id + "' width='1' height='1'>");
html.push("<param name='allowScriptAccess' value='always' />");
html.push("<param name='movie' value='" + this.path + "' />");
html.push("</object>");
} else {
html.push("<embed id='" + this.id + "' name='" + this.id + "' src='" + this.path + "' " +
"width='1' height='1' align='middle' allowScriptAccess='always' " +
"type='application/x-shockwave-flash' " +
"pluginspage='http://www.adobe.com/go/getflashplayer_cn' />");
};
var container = document.createElement("div");
container.style.position = "absolute";
container.style.top = "-999px";
container.innerHTML = html.join("");
try {
//document.documentElement.appendChild(container);
document.documentElement.insertBefore(container, document.documentElement.firstChild);
return true;
}
catch (ex) { return false; }
},
version: function () {
var version = 0, n = navigator;
if (n.plugins && n.plugins.length) {
for (var i = 0; i < n.plugins.length; i++) {
if (n.plugins[i].name.indexOf("Shockwave Flash") != -1) {
version = n.plugins[i].description.split("Shockwave Flash")[1];
break;
}
}
} else if ("ActiveXObject" in window) {
for (var i = 15; i > 7; i--) {
try {
if (new ActiveXObject("ShockwaveFlash.ShockwaveFlash." + i)) {
version = parseInt(i);
break;
}
} catch (ex) { }
}
}
return parseInt(version);
},
check: function () {
var bool = false;
if (this.version() >= 10) {
bool = this.insert();
}
return bool;
}
};
var o = {
ls: (typeof window.localStorage == "object") ? true : false, //再支持localstorage
t: (navigator.appVersion.toString().indexOf("MSIE") > 0
&& navigator.appVersion.toString().indexOf("MSIE 9.0") < 0) ? true : false,
//ie9以下版本,在本地无法保存，采用服务器保存的方案
g: (window.google && google.gears && google.gears.factory.create) ? true : false, //有gears再支持gears
gs: (typeof window.globalStorage == "object") ? true : false, //再支持globalStorage
f: (1 == 2) ? true : false, //有flash支持flashStorage//flash.check()
u: false //ie9以下版本,由于不支持跨页，所以放弃
};
//alert(o.ls+","+o.t+","+o.g+","+o.gs);
//gears方案
var g = (function () {
var db = (o.g) ? google.gears.factory.create("beta.database", "1.0") : null;
return {
Set: function (name, key, val) {
var complete = false;
db.open("beta.database");
with (db) try {
execute("create table if not exists storage" + name + " (itemkey text unique not null PRIMARY key,itemval text not null)");
var rs = execute("select itemkey from storage" + name + " where itemkey=?", [key]);
if (rs.isValidRow()) { execute("update storage" + name + " set itemval=? where itemkey=?", [val, key]); } else { execute("insert into storage" + name + " values (?,?)", [key, val]); };
rs.close();
complete = true;
} catch (e) { }; //alert(e.message);
db.close();
return complete;
},
Get: function (name, key) {
var backval = "";
db.open("beta.database");
try {
var rs = db.execute("select itemkey,itemval from storage" + name + " where itemkey=?", [key]);
if (rs.isValidRow()) {
backval = rs.field(1);
backval = (backval == null || backval == undefined) ? "" : backval;
}
rs.close();
} catch (e) { };
db.close();
return backval;
},
Del: function (name, key) {
var complete = false;
db.open("beta.database");
try {
db.execute("delete from storage" + name + " where itemkey=?", [key]);
complete = true;
} catch (e) { };
db.close();
return complete;
},
Remove: function (name) {
var complete = false;
db.open("beta.database");
try {
db.execute("drop table storage" + name);
complete = true;
} catch (e) { };
close();
return complete;
}
}
})();
//localStorage和globalStorage方案(二者类似firefox,chrome,opear,ie8/9支持localStorage)
var gs, ls;
gs = ls = (function () {
var storage = (o.ls) ? window.localStorage : (o.gs) ? window.globalStorage[location.hostname] : null;
return {
Set: function (name, key, val) {
var loadval = storage.getItem(name);
if (loadval == undefined || loadval == null) {
storage.setItem(name, key + "=" + val);
} else {
var array = loadval.split(";");
var len = array.length;
var addnew = true;
for (var i = 0; i < len; i++) {
if (array[i].indexOf(key + "=") == 0) {
array[i] = key + "=" + val;
addnew = false;
break;
}
}
if (addnew) {
array.push(key + "=" + val);
}
storage.setItem(name, array.join(";"));
}
return true;
},
Get: function (name, key) {
var backval = "";
var loadval = storage.getItem(name);
if (loadval != undefined && loadval != null) {
var array = loadval.split(";");
var len = array.length;
for (var i = 0; i < len; i++) {
if (array[i].indexOf(key + "=") == 0) {
backval = array[i].substr(array[i].indexOf("=") + 1);
break;
}
}
}
return backval;
},
Del: function (name, key) {
return this.Set(name, key, "");
},
Remove: function (name) {
if (storage.getItem(name)) {
storage.setItem(name, "");
}
return true;
}
}
})();
//flashShare方案，flash方案有一定的局限性，需要页面加载完成后才可以使用。
var f = (function () {
return {
//外部循环检查flash对象是否准备妥当
IsReady: function () {
return (flash.cache().set) ? true : false;
},
Set: function (name, key, val) {
flash.cache().set(name, key, val);
},
Get: function (name, key) {
return flash.cache().get(name, key);
},
Del: function (name, key) {
return flash.cache().del(name, key);
},
Remove: function (name) {
flash.cache().remove(name);
}
}
})();
//userData方案ie6/7， 该方案不支持跨页。
var u = (function () {
if (o.u) document.documentElement.addBehavior("#default#userdata");
return {
Set: function (name, key, val) {
with (document.documentElement) try {
load(name);
setAttribute(key, val);
save(name);
return true;
}
catch (e) {
return false;
}
},
Get: function (name, key) {
var backval = "";
with (document.documentElement) try {
load(name);
backval = getAttribute(key);
if (backval == undefined || backval == null) { backval = ""; }
} catch (e) { }
return backval;
},
Del: function (name, key) {
return this.Set(name, key, "");
},
Remove: function (name) {
with (document.documentElement) try {
load(name);
expires = new Date(315532799000).toUTCString();
save(name);
return true;
}
catch (e) { return false; }
}
}
})();
//服务器端保存方案，在ie6.0下才是必须使用的方式
var t=(function(){
return{
Set:function(name,key,val){
var postdata = {"Do": "Set",name: name,Key:key,value: val};
var ret=false;
$.ajax({
url: "/Web/Handler1.ashx?action=SvrStorage",
type:"post",
data:postdata,
async: false,
success:function(){
ret=true;
},
error:function(){
}
});
return true;
},
Get:function(name,key){
var postdata = {"Do": "Get",name: name,Key:key};
var ret="";
$.ajax({
url: "/Web/Handler1.ashx?action=SvrStorage",
type:"post",
data:postdata,
async: false,
success:function(data){
ret=data;
},
error:function(){
}
});
return ret;
},
Del:function(name,key){
var postdata = {"Do": "Del",name: name,Key:key};
var ret=false;
$.ajax({
url: "/Web/Handler1.ashx?action=SvrStorage",
type:"post",
data:postdata,
async: false,
success:function(data){
ret=true;
},
error:function(){
}
});
return ret;
},
Remove:function(name){
var postdata = {"Do": "Remove",name: name};
var ret=false;
$.ajax({
url: "/Web/Handler1.ashx?action=SvrStorage",
type:"post",
data:postdata,
async: false,
success:function(data){
ret=true;
},
error:function(){
}
});
return ret;
}
}
})();
//Public方法
return {
Set: function (name, key, val) {
for (var s in o) {
if (eval("o." + s)) {
return (eval(s + ".Set(\"" + name + "\",\"" + key + "\",\"" + encodeURIComponent(val) + "\")"));
}
}
},
Get: function (name, key) {
for (var s in o) {
if (eval("o." + s)) {
return decodeURIComponent(eval(s + ".Get(\"" + name + "\",\"" + key + "\")"));
}
}
},
Del: function (name, key) {
for (var s in o) {
if (eval("o." + s)) {
return (eval(s + ".Del(\"" + name + "\",\"" + key + "\")"));
}
}
},
Remove: function (name) {
for (var s in o) {
if (eval("o." + s)) {
return (eval(s + ".Remove(\"" + name + "\")"));
}
}
},
IsReady: function () {
for (var s in o) {
if (eval("o." + s)) {
if (s == "f") {//flash
return f.IsReady();
} else {
return true;
}
//return (eval(s + ".IsReady()"));
}
}
}
}
})();
})();