单击按钮的标题或按钮图标后，按钮的事件不起作用 [英] Button's event doesn't work after click on button's title or button's icon

问题描述

我创建了一个带标签和向下插入图标的下拉按钮。当下拉菜单打开时，向下插入图标应该向上旋转，这是有效的。

I created a dropdown button with tag and a "down-caret" icon. when dropdown menu is open, "down-caret" icon should rotate up and this is working.

但如果我点击按钮标题或向下插入图标，此事件将无效。

But if I click on button title or "down-caret" icon, this event not work.

$(document).ready(function() {
  $('.dropdown').click(function(e) {
    $($(e.target).find('.down-caret').toggleClass('open-caret'));
    e.stopPropagation();
    $(document).click(function() {
      $('.dropdown-menu').removeClass('open');
      $('.down-caret').removeClass('open-caret');
    });
  });
});

a {
  text-decoration: none;
}

.dropdown {
  position: relative;
  display: inline-block;
}

.dropdown .drop {
  background-color: #3498db;
  color: #fff;
  padding: 1rem;
  border-radius: 6px;
  position: relative;
  display: inline-block;
}

.down-caret {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 5px 0 5px;
  border-color: #ffffff transparent transparent transparent;
  display: inline-block;
  margin-left: 6px;
  top: -3px;
  position: relative;
  transform: rotate(0deg);
  transition: all 0.25s ease-in;
}

.open-caret {
  transform: rotate(180deg);
  transition: all 0.25s ease-out;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<li class="dropdown">
  <a class="drop" href="#">
    <span>Dropdown</span>
    <i class="down-caret"></i>
  </a>
</li>

我需要跨度&安培;我标记存在于我的代码中。

I need span & i tags to be exist in my code.

这是我的完整代码 jsFiddle

推荐答案

原因是，您正在使用当前点击的元素 $（e.target）用类 down-caret 查找里面的元素。

The reason is, you are using currently clicked element $(e.target) to find an element inside with class down-caret.

如果你点击 icon 或文字内部没有指定类的元素。

And if you click on icon or the text there is no element inside with that specified class.

您只需将 $（e.target）更改为 $（'。下拉'），你就完成了。

You just need to change $(e.target) to $('.dropdown') and you are done.

$(document).ready(function(){
  $('.dropdown').click(function(e){
    $('.dropdown').find('.down-caret').toggleClass('open-caret');
 
  });
  
 
});

a {
  text-decoration: none;
}
.dropdown {
  position: relative;
  display: inline-block;
}
.dropdown .drop {
  background-color: #3498db;
  color: #fff;
  padding: 1rem;
  border-radius: 6px;
  position: relative;
  display: inline-block;
}
.down-caret {
  width: 0;
  height: 0;
  border-style: solid;
  border-width: 5px 5px 0 5px;
  border-color: #ffffff transparent transparent transparent;
  display: inline-block;
  margin-left: 6px;
  top: -3px;
  position: relative;
  transform: rotate(0deg);
  transition: all 0.25s ease-in;
}
.open-caret {
  transform: rotate(180deg);
  transition: all 0.25s ease-out;
}

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>

<li class="dropdown">
   <a class="drop" href="#">
      <span>Dropdown</span>
      <i class="down-caret"></i>
   </a>
</li>

这是 fiddle

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