本文主要是介绍仿BBC cookie message提示功能,希望对大家解决编程问题提供一定的参考价值,需要的开发者们随着小编来一起学习吧!
功能描述:当用户访问网站时,浏览器会判断是否缓存cookie。若已有缓存,不会提示cookie message;否则,显示cookie message。当用户点击continue按钮时,表示用户同意浏览器缓存cookie,将cookie信息存储在cookie文件,在cookie有效期内不会再提示cookie message;当用户点击change 或者find链接时,跳转到cookie policy 页面。
Html 代码:.csm-message是提示信息,.navbanner是导航部分。
<div class="csm-cookies"><div class="cookies-banner row"><div class="col-md-3"><h2 class="cookies-title">Cookies on the Cashmirino website</h2></div><div class="col-md-6"><p class="cookies-content">This website uses cookies. Cookies are stored in your computer by your browser in the form of small text parcels sent to and from a website. Cookies help a website to identify different users which helps us to provide you with a good experience when you browse our website and also allows us to improve our website. <a href="@Url.Action("CookiePolicy", "Static")">This policy</a> explains how this site uses cookies and how you can control them.</p></div><div class="col-md-3"><ul class="cookies-options"><li id="cookies-continue"><span class="glyphicon glyphicon-ok"></span><a class="continue"> Continue</a></li><li id="cookies-settings"><a href="@Url.Action("CookiePolicy", "Static")"><span class="glyphicon glyphicon-cog"></span> Change settings</a></li><li id="cookies-more"><a href="@Url.Action("CookiePolicy", "Static")"><span class="glyphicon glyphicon-question-sign"></span> Find out more</a></li></ul></div></div>
</div>
<div class="navbanner"></div>
CSS代码:
.csm-cookies { background: $color-brown; color: #fff; padding: 16px 0; display: none; line-height: 1; font-size: 1.3em;a { color: #fff;cursor: pointer; }a:active, a:focus, a:hover, button:active, button:focus, button:hover { color: #e8dbd1; border: none; text-decoration:underline;}span { font-size: 0.8em; }.cookies-banner {margin: 0 auto;.cookies-title {font-size: 1.3em;font-family: "Carrotflower",sans-serif;line-height: 1.2em;margin-top: 40px;font-weight: 700;@media screen and (min-width: 600px) { width: 100%; margin-right: 3.5%; float: left; }}.continue{font-size:1.3em;text-decoration:none !important;}.cookies-content { margin: 0; padding: 0; border: 0; font: inherit; vertical-align: baseline; width: 100%; font-family: "Moderat",sans-serif; line-height: 1.11em; color:#ddd}.cookies-options { list-style: none; margin-top: 25px;/*button { background-color: transparent; background-repeat: no-repeat; text-decoration: underline; line-height: 1.231em; padding: 0; cursor: pointer; border: none; }*/li { padding-top: 8px; }li:first-child { padding-top: 0; }}@media screen and (min-width:1008px) { max-width: 976px; padding: 0 16px; }@media screen and (min-width:400px) { padding: 0 16px; }}.modal-close { right: 5px; top: 6px; }p.title { text-align: center; font-size: 14px; padding: 0; margin: 0; }
}
.navbanner { position: relative; }
JavaScript代码:
function checkCookie() {if ($.cookie('cookies-on-website') !== 'continued') {$('.csm-cookies').slideDown();}
}checkCookie();$('.csm-cookies .continue').click(function () {$.cookie('cookies-on-website', 'continued', { expires: 365 });$('.csm-cookies').slideUp();//location.reload(true);
});
知识点回顾:
1. CSS position注意事项
参考学习:https://segmentfault.com/a/1190000006924181
我的项目中,.navbanner包含多个不同功能的子导航,部分导航使用position:fixed固定在页面顶部,根据需求,cookie message要显示在导航上方。position绝对定位是相对于其父级元素的,所以我为.navbanner添加position:relative达到目的。
2.hide()与slideUp()的区别
hide()直接隐藏目标元素,与show()显示目标元素对应使用。
slideUp()向上滑动隐藏目标元素,与slideDown()向下滑动显示目标元素对应使用。
3.插件jquery.cookie.js的使用
参考学习:https://blog.csdn.net/kevinwuwenboa/article/details/53786857
(官方手册) https://github.com/carhartl/jquery-cookie#readme
基本语法:
1)读取cookie
$.cookie(cookieName) cookieName:要读取cookie的名称
e.g. $.cookie("username")
2)写入设置cookie值
$.cookie(cookiName,cookieValue,[option])
[option] 参数:
expires:有效日期。若不设置,则默认有效期为浏览器关闭前。
path:cookie保存路径。默认值为创建页面路径。
domin:cookie域名属性。默认值为创建页面域名。若主域名二级域名有效则要设置“.xxx.com”
secure:一个布尔值,表示传输cookie值时,是否需要一个安全协议
e.g. $.cookie("username","Yuki",{expires:3000;path:'D:/'});
$.cookie("username",Null)//销毁名称为username的cookie
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