使用jQuery'cookie'维护网站上的选定选项卡

时间:2011-10-23 12:38:39

标签: javascript jquery cookies tabs tabbed

有人可以解释我如何使用jQuery Cookie plugin在我的整个网站上保留所选标签吗?

这是我在JSFiddle表单中的当前代码:http://jsfiddle.net/mcgarriers/RXkyC/

如果单击Tab2并单击指向Google的链接,我仍然希望当我返回该页面时该标签保持打开状态。

有人可以向我解释我是如何实现这一目标的吗?

我已将我的代码附在此处以供参考:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
        <meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
    <title>Conforming XHTML 1.0 Strict Template</title>

    <script src='http://ajax.googleapis.com/ajax/libs/jquery/1.6.1/jquery.min.js'></script>

<script type="text/javascript">
$(function() {
    var timeouts = [],
        nTimeouts = 0;
    // A helper function that allows multiple LI elements to be either
    // faded in or out or slide toggled up and down
    function fadeOutItems(ele, delay) {
        var $$ = $(ele), $n = $$.next();
        // Toggle the active class
        $$.toggleClass('active');
        // Clear any timeout's still waiting
        while (nTimeouts--) {
            clearTimeout(timeouts[nTimeouts]);
        }
        // Ensure the next element exists and has the correct nodeType
        // of an unordered list aka "UL"
        if ($n.length && $n[0].nodeName === 'UL') {
            nTimeouts = $('li', $n).length;
            $('li', $n).each(function(i) {
                // Determine whether to use a fade effect or a very quick
                // sliding effect
                // cache this
                var _this = $(this);
                timeouts[i] = setTimeout(function() {
                    delay ? _this.fadeToggle('slow') : _this.slideToggle('fast');
                }, 400*i);
            });
        }
    }
    // Retrieves the URL parameters from the window object and allows
    // for custom query parameter requests by name
    function getParameterByName(name) {
        name = name.replace(/[\[]/, '\\\[').replace(/[\]]/, '\\\]');
        var regexS  = '[\\?&]' + name + '=([^&#]*)';
        var regex   = new RegExp(regexS);
        var results = regex.exec(window.location.href);
        if (results === null) {
            return false;
        } else {
            return decodeURIComponent(results[1].replace(/\+/g, ' '));
        }
    }
    // This is the jQuery event that controls the click event for the
    // tabs on the page by using a class to cut down on code
    $('a', '.tabs').click(function(e) {     
        //e.preventDefault();
        $('.tabs ul li').hide();
        // Check on the other tabs, if the anchor link contains the
        // class "active" fade out the UL list items
        var $ca = $('a.active', '.tabs');
        if ($ca.length) {
            // Check the currently selected tab against the one just clicked,
            // if they are the same end the code right here!
            if ($(this).parent().attr('id') === $ca.parent().attr('id')) {
                return false;
            }
            fadeOutItems($ca, false);
        }
        fadeOutItems(this, true);
    });
    // Check the URL query string, if a tab hash is present we can
    // force the click event on the selected tab
    //
    // Eg. http://www.example.com/my-page.html#tab2
    var query = getParameterByName('tab');
    if (query !== false) {
        document.getElementById(query)[0].click();
    }
});
</script>

    <style type="text/css">
    body {
    font-family: Arial;
    font-size: 13px;
    line-height: 16px;
    }

    .tabs a {
        background-color: #dedede;
        color: #565656;
        display: block;
        margin-bottom: 5px;
        padding: 5px 8px;
        text-decoration: none;
    }

    .tabs ul {
        margin: 0 0 10px;
        padding: 0;
    }

    .tabs li {
        background-color: #eee;
        border: 1px solid #ccc;
        color: #1a1a1a;
        display: none;
        border-radius: 5px;
        margin-bottom: 1px;
        padding: 5px 10px;
    }
    </style>

</head>
<body>

<div id="tabs">

    <div id="tab1" class="tabs">
    <a href="#" id="tab1link">Tab 1</a>

        <ul>
            <li>1</li>
            <li>2</li>
        </ul>
    </div>

    <div id="tab2" class="tabs">
        <a href="#" id="tab2link">Tab 2</a>

        <ul>
            <li>1</li>
            <li>2</li>
            <li>3</li>
            <li><a href="http://www.google.com/">4</a></li>
        </ul>
    </div>

</div>

</body>
</html>

非常感谢任何指示。

1 个答案:

答案 0 :(得分:0)

首先需要设计一种机制,允许您以编程方式选择选项卡。例如,在jQuery UI选项卡实现中,这是通过select方法实现的。您还需要一种方法来读取当前选定的选项卡。 E.g:

var selected = $tabs.tabs('option', 'selected');

然后在页面unload事件中存储cookie中所选选项卡的值。在页面加载事件中,从cookie中读取值并选择相应的选项卡。