javascript – 为什么mouseleave和mouseout不能在Chrome上使用bootstrap选项卡显示事件？

我一直在定制 this bootstrap responsive tabs示例.我想要的是当用户将鼠标悬停在左/右箭头图标上时,就像滑块一样循环选项卡.与此同时,如果用户持续悬停在左/右箭头图标上,我也希望滑块继续骑自行车.我写了以下代码：

(function() {


  function changeTab() {

    console.log("mouseenterd on ",$(this));

    if ($(this).closest("li").hasClass("next") && !$(this).closest("li").hasClass("hovered")) {
      $(this).closest(".nav-tabs").children("li").removeClass("hovered");
      $(this).tab('show');
    } else if ($(this).closest("li").hasClass("prev") && !$(this).closest("li").hasClass("hovered")) {
      $(this).closest(".nav-tabs").children("li").removeClass("hovered");
      $(this).tab('show');
    }
  }

  function outOfHover() {

    console.log("mouseleave on ",$(this));

    if ($(this).closest("li").hasClass("hovered")) {
      $(this).closest(".nav-tabs").children("li").removeClass("hovered");
    }

  }




  $('[data-toggle="tab"],[data-toggle="pill"]').on('mouseleave',outOfHover); //removes class hovered
  $('[data-toggle="tab"],[data-toggle="pill"]').on('mouseenter',changeTab); //runs bootstrap tabs like slider

  var triggerClickTab;
  var triggerClickCarousel;

  function triggerClick(that) {
    $(that).tab('show');
    console.log("show triggered " + " ",$(that));
  }

  $('[data-toggle="tab"],function() {
    var that = this;
    triggerClickTab = setInterval(triggerClick,1650,that);
  });

  $('[data-toggle="tab"],function() {
    clearInterval(triggerClickTab);
  });



  $("#myCarousel .carousel-control").on('mouseenter',function() {

    if ($(this).hasClass("left")) {
      $("#myCarousel").carousel('prev');
    } else if ($(this).hasClass("right")) {
      $("#myCarousel").carousel('next');
    }

    var that = this;
    triggerClickCarousel = setInterval(triggerClick,that);
  });

  $("#myCarousel .carousel-control").on('click',function() {

    clearInterval(triggerClickCarousel);

    var that = this;
    triggerClickCarousel = setInterval(triggerClick,that)
  });

  $("#myCarousel .carousel-control").on('mouseleave',function() {
    clearInterval(triggerClickCarousel);
  });

  /* end if Condition for non-touch device finsihes here */

  $(document).on('show.bs.tab','.nav-tabs [data-toggle="pill"],.nav-tabs [data-toggle="tab"]',function(e) {
    var $target = $(e.target);
    var $tabs = $target.closest('.nav-tabs');
    var $current = $target.closest('li');
    var $parent = $current.closest('li.dropdown');
    $current = $parent.length > 0 ? $parent : $current;
    var $next = $current.next();
    var $prev = $current.prev();

    var updateDropdownMenu = function($el,position) {
      $el
        .find('.dropdown-menu')
        .removeClass('pull-left pull-center pull-right')
        .addClass('pull-' + position);
    };

    $tabs.find('>li').removeClass('hovered');

    if ($current.hasClass("next")) {
      $next.addClass('hovered');

    } else if ($current.hasClass("prev")) {
      $prev.addClass('hovered');
    }

    $tabs.find('>li').removeClass('next prev');
    $prev.addClass('prev');
    $next.addClass('next');

    updateDropdownMenu($prev,'left');
    updateDropdownMenu($current,'center');
    updateDropdownMenu($next,'right');
  });



}());

/**
 * Responsive Bootstrap Tabs by @hayatbiralem
 * 15 May 2015
 */

@media screen and (max-width: 479px) {
  .nav-tabs-responsive > li {
    display: none;
    width: 23%;
  }
  .nav-tabs-responsive > li > a {
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    word-wrap: normal;
    width: 100%;
    width: 100%;
    text-align: center;
    vertical-align: top;
  }
  .nav-tabs-responsive > li.active {
    width: 54%;
  }
  .nav-tabs-responsive > li.active:first-child {
    margin-left: 23%;
  }
  .nav-tabs-responsive > li.active,.nav-tabs-responsive > li.prev,.nav-tabs-responsive > li.next {
    display: block;
  }
  .nav-tabs-responsive > li.prev,.nav-tabs-responsive > li.next {
    -webkit-transform: scale(0.9);
    transform: scale(0.9);
  }
  .nav-tabs-responsive > li.next > a,.nav-tabs-responsive > li.prev > a {
    -webkit-transition: none;
    transition: none;
  }
  .nav-tabs-responsive > li.next > a .text,.nav-tabs-responsive > li.prev > a .text {
    display: none;
  }
  .nav-tabs-responsive > li.next > a:after,.nav-tabs-responsive > li.next > a:after,.nav-tabs-responsive > li.prev > a:after,.nav-tabs-responsive > li.prev > a:after {
    position: relative;
    top: 1px;
    display: inline-block;
    font-family: 'Glyphicons Halflings';
    font-style: normal;
    font-weight: 400;
    line-height: 1;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
  }
  .nav-tabs-responsive > li.prev > a:after {
    content: "\e079";
  }
  .nav-tabs-responsive > li.next > a:after {
    content: "\e080";
  }
  .nav-tabs-responsive > li.dropdown > a > .caret {
    display: none;
  }
  .nav-tabs-responsive > li.dropdown > a:after {
    content: "\e114";
  }
  .nav-tabs-responsive > li.dropdown.active > a:after {
    display: none;
  }
  .nav-tabs-responsive > li.dropdown.active > a > .caret {
    display: inline-block;
  }
  .nav-tabs-responsive > li.dropdown .dropdown-menu.pull-xs-left {
    left: 0;
    right: auto;
  }
  .nav-tabs-responsive > li.dropdown .dropdown-menu.pull-xs-center {
    right: auto;
    left: 50%;
    -webkit-transform: translateX(-50%);
    -moz-transform: translateX(-50%);
    -ms-transform: translateX(-50%);
    -o-transform: translateX(-50%);
    transform: translateX(-50%);
  }
  .nav-tabs-responsive > li.dropdown .dropdown-menu.pull-xs-right {
    left: auto;
    right: 0;
  }
}
/**
 * Demo Styles
 */

.wrapper {
  padding: 15px 0;
}
.bs-example-tabs .nav-tabs {
  margin-bottom: 15px;
}
@media (max-width: 479px) {
  #narrow-browser-alert {
    display: none;
  }
}

<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/css/bootstrap.min.css" integrity="sha384-BVYiiSIFeK1dGmJRAkycuHAHRg32OmUcww7on3RYdg4Va+PmSTsz/K68vbdEjh4u" crossorigin="anonymous">
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.7/js/bootstrap.min.js" integrity="sha384-Tc5IQib027qvyjSMfHjOMaLkfuWVxZxUPnCJA7l2mCWNIpG9mGCD8wGNIcPD7Txa" crossorigin="anonymous"></script>
<div class="wrapper">
  <div class="container">
    <div id="narrow-browser-alert" class="alert alert-info text-center">
      <strong>Heads up!</strong>
      <br>Narrow your browser!</div>
    <div class="bs-example bs-example-tabs" role="tabpanel" data-example-id="togglable-tabs">
      <ul id="myTab" class="nav nav-tabs nav-tabs-responsive" role="tablist">
        <li role="presentation" class="active">
          <a href="#home" id="home-tab" role="tab" data-toggle="tab" aria-controls="home" aria-expanded="true">
            <span class="text">Home</span>
          </a>
        </li>
        <li role="presentation" class="next">
          <a href="#profile" role="tab" id="profile-tab" data-toggle="tab" aria-controls="profile">
            <span class="text">Profile</span>
          </a>
        </li>
        <li role="presentation">
          <a href="#samsa" role="tab" id="samsa-tab" data-toggle="tab" aria-controls="samsa">
            <span class="text">Metamorfoz by Franz Kafka</span>
          </a>
        </li>
        <li role="presentation">
          <a href="#samsa2" role="tab" id="samsa-tab" data-toggle="tab" aria-controls="samsa">
            <span class="text">Nup</span>
          </a>
        </li>
        <li role="presentation">
          <a href="#samsa3" role="tab" id="samsa-tab" data-toggle="tab" aria-controls="samsa">
            <span class="text">haha lol</span>
          </a>
        </li>
      </ul>
      <div id="myTabContent" class="tab-content">
        <div role="tabpanel" class="tab-pane fade in active" id="home" aria-labelledby="home-tab">
          <p>
            Raw denim you probably haven't heard of them jean shorts Austin. Nesciunt tofu stumptown aliqua,retro synth master cleanse. Mustache cliche tempor,williamsburg carles vegan helvetica. Reprehenderit butcher retro keffiyeh dreamcatcher synth. Cosby sweater
            eu banh mi,qui irure terry richardson ex squid. Aliquip placeat salvia cillum iphone. Seitan aliquip quis cardigan american apparel,butcher voluptate nisi qui.
          </p>
        </div>
        <div role="tabpanel" class="tab-pane fade" id="profile" aria-labelledby="profile-tab">
          <p>
            Food truck fixie locavore,accusamus mcsweeney's marfa nulla single-origin coffee squid. Exercitation +1 labore velit,blog sartorial PBR leggings next level wes anderson artisan four loko farm-to-table craft beer twee. Qui photo booth letterpress,commodo
            enim craft beer mlkshk aliquip jean shorts ullamco ad vinyl cillum PBR. Homo nostrud organic,assumenda labore aesthetic magna delectus mollit. Keytar helvetica VHS salvia yr,vero magna velit sapiente labore stumptown. Vegan fanny pack odio
            cillum wes anderson 8-bit,sustainable jean shorts beard ut DIY ethical culpa terry richardson biodiesel. Art party scenester stumptown,tumblr butcher vero sint qui sapiente accusamus tattooed echo park.
          </p>
        </div>

        <div role="tabpanel" class="tab-pane fade" id="samsa" aria-labelledby="samsa-tab">
          <p>
            One morning,when Gregor Samsa woke from troubled dreams,he found himself transformed in his bed into a horrible vermin.
          </p>
          <p>
            He lay on his armour-like back,and if he lifted his head a little he could see his brown belly,slightly domed and divided by arches into stiff sections.
          </p>
        </div>
        <div role="tabpanel" class="tab-pane fade" id="samsa2" aria-labelledby="samsa-tab">
          <p>
            He lay on his armour-like back,slightly domed and divided by arches into stiff sections.
          </p>
        </div>
        <div role="tabpanel" class="tab-pane fade" id="samsa3" aria-labelledby="samsa-tab">
          <p>
            One morning,slightly domed and divided by arches into stiff sections.
          </p>
        </div>
      </div>
    </div>
  </div>
</div>

由于媒体查询,代码在stackoverflow上无法正常工作.请尝试这个filddle具有完全相同的代码,工作正常：https://jsfiddle.net/hhtm1on3/
Plz缩小输出的宽度,直到看到左/右箭头的标签版本.

jsfiddle代码在firefox浏览器中正常工作,但不在chrome浏览器中.当特定事件触发时,我已经在控制台中添加了评论.正如你可以在firefox中看到的,mouseleave在每个选项卡都显示但不是chrome后保持触发.鼠标事件也会发生.

题：

>为什么mouseleave和mouSEOut不能在Chrome上使用bootstrap选项卡显示事件？
>这是什么解决方法？

解决方法

如果光标不移动,Chrome就不会处理一些鼠标事件.与UI重绘优化有关.

一个解决方法可能是强制在每个间隔回调UI重绘.有很多方法强制重绘,一个是重新绘制元素本身,例如：

function triggerClick(that) {                    
    $(that).tab('show').hide().show(0); // force a repaint
    console.log("show triggered " + " ",$(that));
}

见：-updated jsFiddle-

原文链接：https://www.f2er.com/js/152906.html

javascript – 为什么mouseleave和mouseout不能在Chrome上使用bootstrap选项卡显示事件？

解决方法

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