Bootstrap: How to close an open collapsed navbar when clicking outside of the MENU?

问题

I want to have my menu closed when the user clicks outside the menu, not only outside the navbar element. Because I have more collapses in my menu, this solution did not work for me: How to close an open collapsed navbar when clicking outside of the navbar element in Bootstrap 3? The menu disapeares when I click outside the menu, but when I click on the link with a dropdown, the whole menu collapses.

<div class="collapse navbar-collapse nav-mobile" id="bs-example-navbar-collapse-1">
    <ul class="nav navbar-nav">
        <li class="list-group panel">
            <a href="#submenu-1" class="list-group-item" data-toggle="collapse" data-parent="#MainMenu">Webshop</a>
            <ul class="collapse" id="submenu-1">
                <a href="#SubMenu1" class="list-group-item" data-toggle="collapse" data-parent="#SubMenu1">Industriële verpakkingen</a>
                <a href="javascript:;" class="list-group-item">Promotionele verpakkingen</a>
                <a href="javascript:;" class="list-group-item">Gelamineerde verpakkingen</a>
                <a href="javascript:;" class="list-group-item">Enveloppen &verzend verpakkingen</a>
                <a href="javascript:;" class="list-group-item">Medische verpakkingen</a>
                <a href="javascript:;" class="list-group-item">Co-packing</a>
            </ul>
        </li>
    </ul>

回答1:

You can use this to collapse if not clicking a link: fiddle

$(document).click(function(e) {
    if (!$(e.target).is('a')) {
        $('.collapse').collapse('hide');        
    }
});

回答2:

another alternative, you can add code below :

<script>
	$(document).ready(function(){
		$(".list-group ").hover(            
		function() {
			$('.collapse', this).stop( true, true ).slideDown("fast");
			$(this).toggleClass('open');        
		},
		function() {
			$('.collapse', this).stop( true, true ).slideUp("fast");
			$(this).toggleClass('open');       
		}
		);
	});
</script>

another example : dtc-eng

回答3:

Here is my take on this:

$(document).on('click', function(event){
  var $clickedOn = $(event.target),
      $collapsableItems = $('.collapse'),
      isToggleButton = ($clickedOn.closest('.navbar-toggle').length == 1),
      isLink = ($clickedOn.closest('a').length == 1),
      isOutsideNavbar = ($clickedOn.parents('.navbar').length == 0);

  if( (!isToggleButton && isLink) || isOutsideNavbar ) {
    $collapsableItems.each(function(){
      $(this).collapse('hide');
    });
  }
});

This solution handles:

single page website/applications (and will work on multi-pages too).
clicks on:
- .navbar-toggle elements (could be <buttons> or <a>, and it handles clicks on potential inner elements like <span> or <strong> or whatever).
- on simple <a> elements (again, it handles clicks on inner elements).
- just outside some particular parent (ie. .navbar).
multiple collapsable (.collapse) elements that might be open (indistinct to where they are placed in the DOM).

Not enough for you? No problem. You can customize most of the selectors passed to jQuery (document, .collapse, .navbar, etc) to suit your needs or even add more conditions.

来源：https://stackoverflow.com/questions/33824255/bootstrap-how-to-close-an-open-collapsed-navbar-when-clicking-outside-of-the-me

标签

jquery

collapse

dropdown