欢迎您访问程序员文章站本站旨在为大家提供分享程序员计算机编程知识!
您现在的位置是: 首页

jQuery插件cookie

程序员文章站 2024-03-05 15:04:36
...

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插件cookie

jQuery插件cookie

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

jQuery插件cookie