当用户点击菜单外部时,如何关闭Bootstrap导航栏下拉列表?

时间:2015-09-08 06:41:48

标签: javascript twitter-bootstrap navbar

我有一个Bootstrap导航栏,当缩小/点击切换按钮时,缩小时会折叠并作为菜单下拉。但是,一旦打开,它将保持打开状态,直到再次单击切换按钮。当用户A)在菜单区域外点击时,有没有办法自动关闭它,B)在移动设备上向上或向下滚动页面?以下是折叠时导航栏的外观:

enter image description here

这是下拉列表:

enter image description here

当点击黄色区域或任何菜单项时(搜索框除外),我需要下拉列表折叠。到目前为止,我的JS看起来像这样:

// prevent search box from vanishing upon click in responsive mode
$('input.form-control').click(function(e) { e.stopPropagation(); });

// re-collapse nav dropdown menu after selection (in responsive mode)
    $('.navbar-fixed-top').click('li', function() {
        $('.navbar-collapse').collapse('hide');
    });


// close drop-down nav when user clicks outside
    $(document).ready(function () {
        function CloseNav() {
            $(".navbar-collapse").stop().css({ 'height': '1px' }).removeClass('in').addClass("collapse");
            $(".navbar-toggle").stop().removeClass('collapsed');
        }

        $('html').click(function (event) {
            var clickover = $(event.target);
            var _opened = $(".navbar-collapse").hasClass("navbar-collapse in");
            if (_opened === true && !clickover.hasClass("navbar-toggle")) {
                CloseNav();
            }

        });
    });

这是相关的HTML代码段:

<!-- Nav bar -->
    <div class="navbar navbar-default navbar-fixed-top top-nav" role="navigation">
      <div class="container-fluid">
        <div class="navbar-header">
          <button type="button" class="navbar-toggle" data-toggle="collapse" data-target=".navbar-collapse">
            <span class="sr-only">Toggle navigation</span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
            <span class="icon-bar"></span>
          </button>
          <a class="navbar-brand" href="#"><img src="bootstrap/img/gray_logo.png" class="site-logo"><span class="site-name-first">Always</span><span class="site-name-second">Spanish</span></a>
        </div>

        <!-- Navbar links -->
        <div class="collapse navbar-collapse" ng-controller="HeaderController">
          <!-- Search box start --> 
            <form class="navbar-form navbar-right search-box" role="search">
              <div class="input-group">
                <input type="text" class="form-control" placeholder="Search" name="srch-term" id="srch-term">
                <div class="input-group-btn">
                  <button class="btn btn-default" type="submit"><i class="glyphicon glyphicon-search"></i></button>
                </div>
              </div>
            </form>
            <!-- Search box start -->
            <ul class="nav navbar-nav pull-right">
                <li ng-class="{ active: isActive('/about')}"><a href="#about">About</a></li>
                <li ng-class="{ active: isActive('/blog')}"><a href="#blog">Blog</a></li>
                <li><a href="#">Premium</a></li>
                <li><a href="#">Books</a></li>
                <li><a href="javascript:;" data-target="#contact" data-toggle="modal">Contact</a></li>
            </ul>
        </div>
      </div>
    </div>

在3个JS脚本中,前两个似乎工作正常。这只是最后一个没有的。另外,我还不知道如何对滚动事件进行分析。我相信我在做一些非常愚蠢的事情。请帮忙!

1 个答案:

答案 0 :(得分:0)

听取窗口上的所有点击,并检查这里是否有没有父级的导航栏。您可以使用closest https://developer.mozilla.org/en-US/docs/Web/API/Element/closest Polyfill:https://github.com/jonathantneal/closest