jQuery插件cookie
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2024-03-05 15:04:36
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在jquery中插入第三方插件时要注意:先加载css样式,再加载jquery,之后再加载其他js的其他样式
在jQuery的创建中,我们需要第三网站的插件,这些插件可以方便我们减少代码的编写,有时不需要书写代码就可以实现。
例如cookie插件,在NET中他是一个页面传值的方法,在这里我用cookie来进行皮肤换肤:
首先是cookie的插件,也可以在网上搜索下载cookie的插件,如果不想下载的话,可以创建一个js文件夹,在里面把下面cookie的插件给复制进去,然后引用就可以了:
换肤图:
jquery.cookie插件:
/*!
* jQuery Cookie Plugin v1.4.0
* https://github.com/carhartl/jquery-cookie
*
* Copyright 2013 Klaus Hartl
* Released under the MIT license
*/
(function (factory) {
if (typeof define === 'function' && define.amd) {
// AMD. Register as anonymous module.
define(['jquery'], factory);
} else {
// Browser globals.
factory(jQuery);
}
}(function ($) {
var pluses = /\+/g;
function encode(s) {
return config.raw ? s : encodeURIComponent(s);
}
function decode(s) {
return config.raw ? s : decodeURIComponent(s);
}
function stringifyCookieValue(value) {
return encode(config.json ? JSON.stringify(value) : String(value));
}
function parseCookieValue(s) {
if (s.indexOf('"') === 0) {
// This is a quoted cookie as according to RFC2068, unescape...
s = s.slice(1, -1).replace(/\\"/g, '"').replace(/\\\\/g, '\\');
}
try {
// Replace server-side written pluses with spaces.
// If we can't decode the cookie, ignore it, it's unusable.
s = decodeURIComponent(s.replace(pluses, ' '));
} catch(e) {
return;
}
try {
// If we can't parse the cookie, ignore it, it's unusable.
return config.json ? JSON.parse(s) : s;
} catch(e) {}
}
function read(s, converter) {
var value = config.raw ? s : parseCookieValue(s);
return $.isFunction(converter) ? converter(value) : value;
}
var config = $.cookie = function (key, value, options) {
// Write
if (value !== undefined && !$.isFunction(value)) {
options = $.extend({}, config.defaults, options);
if (typeof options.expires === 'number') {
var days = options.expires, t = options.expires = new Date();
t.setDate(t.getDate() + days);
}
return (document.cookie = [
encode(key), '=', stringifyCookieValue(value),
options.expires ? '; expires=' + options.expires.toUTCString() : '', // use expires attribute, max-age is not supported by IE
options.path ? '; path=' + options.path : '',
options.domain ? '; domain=' + options.domain : '',
options.secure ? '; secure' : ''
].join(''));
}
// Read
var result = key ? undefined : {};
// To prevent the for loop in the first place assign an empty array
// in case there are no cookies at all. Also prevents odd result when
// calling $.cookie().
var cookies = document.cookie ? document.cookie.split('; ') : [];
for (var i = 0, l = cookies.length; i < l; i++) {
var parts = cookies[i].split('=');
var name = decode(parts.shift());
var cookie = parts.join('=');
if (key && key === name) {
// If second argument (value) is a function it's a converter...
result = read(cookie, value);
break;
}
// Prevent storing a cookie that we couldn't decode.
if (!key && (cookie = read(cookie)) !== undefined) {
result[name] = cookie;
}
}
return result;
};
config.defaults = {};
$.removeCookie = function (key, options) {
if ($.cookie(key) !== undefined) {
// Must not alter options, thus extending a fresh object...
$.cookie(key, '', $.extend({}, options, { expires: -1 }));
return true;
}
return false;
};
}));
然后就是cookie的在jQuery中的$(funtion)({});事件,你也可以引用js文件,这样也是可以实现的。
$(function () {
//--换肤
//获取li的点击事件
var $li = $("#skin li");
$li.click(function () {
switchs(this.id);
});
var $cook = $.cookie('MyName');
if ($cook) {
switchs($cook);
}
});
function switchs(skinName) {
$("#" + skinName).addClass("selected").siblings().removeClass("selected");
$("#cssfile").prop({ "href": "styles/skin/" + skinName + ".css" });
$.cookie('MyName', skinName, { expires: 7, path: '/' });
}
这是引用js文件的效果图