javascript - jquery 添加/删除父 div 之外的多个元素的类

Question

我知道会有一个简单的方法来完成这个，只是努力让我的头脑绕过它。所以我有一个父 div，它包含多个 div，如果单击父 div 之外的 div，则需要一个开放类归因于它们。将尝试通过 html 示例进行解释。

HTML

<div id="mediaPlayer">
    <div class="playerViewer">
        <div class="playerViewControls">
            <img src="img/player-button-prev.png" class="playerPrev" alt="prev" />
            <img src="img/player-button-next.png" class="playerNext" alt="next" />
        </div>
        <div class="playerAll playerView">
            <img src="img/placeholder/player-image.jpg" alt="placeholder image" />
        </div>
        <div class="playerPhoto playerView">
            <img src="img/placeholder/player-image.jpg" alt="placeholder image" />
        </div>
        <div class="playerVideo playerView">
            <img src="img/placeholder/player-image.jpg" alt="placeholder image" />
        </div>
        <div class="playerMap playerView">
            <img src="img/placeholder/player-image.jpg" alt="placeholder image" />
        </div>
        <div class="playerRelated playerView">
            <img src="img/placeholder/player-image.jpg" alt="placeholder image" />
        </div>
    </div>
    <div class="playerControl">
        <div class="playerBtn playerAll">
            <img src="img/player-button-all.jpg" alt="player button all" />
            <p>(120) ALL<br />MEDIA</p>
        </div>
        <div class="playerBtn playerPhoto">
            <img src="img/player-button-photo.jpg" alt="player button photo" />
            <p>(40) PLACE<br />PHOTOS</p>
        </div>
        <div class="playerBtn playerVideo">
            <img src="img/player-button-video.jpg" alt="player button video" />
            <p>(40) PLACE<br />VIDEOS</p>
        </div>
        <div class="playerBtn playerMap">
            <img src="img/player-button-map.jpg" alt="player button map" />
            <p>LOCATION<br />MAP</p>
        </div>
        <div class="playerBtn playerRelated">
            <img src="img/player-button-related.jpg" alt="player button related" />
            <p>(40) RELATED<br />MEDIA</p>
        </div>
    </div>
</div>

因此，如果单击 .playerBtn.playerAll，我希望该 div 和它在 .playerViewer 中的相应 div(在本例中为 .playerAll.playerView)接收打开的类以及在内部打开该类的任何其他 div # mediaPlayer 以打开类。

Answer 1

这是一个可能会起作用的 jQuery 函数。复杂的 DOM 遍历的原因是考虑到单个页面上可能有多个玩家的情况。

$(function() {
    $('.playerControl .playerBtn').click(function() {
        var $playerViewer = $(this).parent('.playerControl').prev('.playerViewer'),
            // Remove the first class called playerBtn
            $relatedEle = $playerViewer.find('.'+$(this).attr('class').replace(/playerBtn\s/gi,''));

        // Add class
 $(this).add($relatedEle).addClass('open');

        // Remove class from siblings in two separate containers
        $(this).siblings().removeClass('open');
        $relatedEle.siblings().removeClass('open');
    });
});

请在此处查看概念验证 fiddle :http://jsfiddle.net/kYqcn/