我有一些HTML菜单,当用户单击这些菜单的头部时,我会完全显示这些菜单。当用户在菜单区域外单击时,我希望隐藏这些元素。

jQuery是否可以实现这样的功能?

$("#menuscontainer").clickOutsideThisElement(function() {
    // Hide the menus
});

当前回答

$(document).on('click.menu.hide', function(e){
  if ( !$(e.target).closest('#my_menu').length ) {
    $('#my_menu').find('ul').toggleClass('active', false);
  }
});

$(document).on('click.menu.show', '#my_menu li', function(e){
  $(this).find('ul').toggleClass('active');
});
div {
  float: left;
}

ul {
  padding: 0;
  position: relative;
}
ul li {
  padding: 5px 25px 5px 10px;
  border: 1px solid silver;
  cursor: pointer;
  list-style: none;
  margin-top: -1px;
  white-space: nowrap;
}
ul li ul:before {
  margin-right: -20px;
  position: absolute;
  top: -17px;
  right: 0;
  content: "\25BC";
}
ul li ul li {
  visibility: hidden;
  height: 0;
  padding-top: 0;
  padding-bottom: 0;
  border-width: 0 0 1px 0;
}
ul li ul li:last-child {
  border: none;
}
ul li ul.active:before {
  content: "\25B2";
}
ul li ul.active li {
  display: list-item;
  visibility: visible;
  height: inherit;
  padding: 5px 25px 5px 10px;
}
<script src="https://code.jquery.com/jquery-2.1.4.js"></script>
<div>
  <ul id="my_menu">
    <li>Menu 1
      <ul>
        <li>subMenu 1</li>
        <li>subMenu 2</li>
        <li>subMenu 3</li>
        <li>subMenu 4</li>
      </ul>
    </li>
    <li>Menu 2
      <ul>
        <li>subMenu 1</li>
        <li>subMenu 2</li>
        <li>subMenu 3</li>
        <li>subMenu 4</li>
      </ul>
    </li>
    <li>Menu 3</li>
    <li>Menu 4</li>
    <li>Menu 5</li>
    <li>Menu 6</li>
  </ul>
</div>

这里是jsbin版本http://jsbin.com/xopacadeni/edit?html,css,js,输出

其他回答

这是一个更通用的解决方案,它允许监视多个元素,并动态地从队列中添加和删除元素。

它保存一个全局队列(autoCloseQueue)——一个对象容器,用于在外部单击时应关闭的元素。

每个队列对象键都应该是DOM元素id,值应该是一个具有2个回调函数的对象:

 {onPress: someCallbackFunction, onOutsidePress: anotherCallbackFunction}

将其放入文档就绪回调中:

window.autoCloseQueue = {}  

$(document).click(function(event) {
    for (id in autoCloseQueue){
        var element = autoCloseQueue[id];
        if ( ($(e.target).parents('#' + id).length) > 0) { // This is a click on the element (or its child element)
            console.log('This is a click on an element (or its child element) with  id: ' + id);
            if (typeof element.onPress == 'function') element.onPress(event, id);
        } else { //This is a click outside the element
            console.log('This is a click outside the element with id: ' + id);
            if (typeof element.onOutsidePress == 'function') element.onOutsidePress(event, id); //call the outside callback
            delete autoCloseQueue[id]; //remove the element from the queue
        }
    }
});

然后,当创建id为“menuscontainer”的DOM元素时,只需将此对象添加到队列:

window.autoCloseQueue['menuscontainer'] = {onOutsidePress: clickOutsideThisElement}

这种情况的简单解决方案是:

$(document).mouseup(function (e)
{
    var container = $("YOUR SELECTOR"); // Give you class or ID
    
    if (!container.is(e.target) &&            // If the target of the click is not the desired div or section
        container.has(e.target).length === 0) // ... nor a descendant-child of the container
    {
        container.hide();
    }
});

如果在div单击事件之外触发,上述脚本将隐藏div。

这是我解决这个问题的方法:

$(document).ready(function() {
  $('#user-toggle').click(function(e) {
    $('#user-nav').toggle();
    e.stopPropagation();
  });

  $('body').click(function() {
    $('#user-nav').hide(); 
  });

  $('#user-nav').click(function(e){
    e.stopPropagation();
  });
});

要隐藏文件TreeClass(如果在其外部单击),请执行以下操作:

jQuery(document).mouseup(function (e) {
    var container = $(".fileTreeClass");
    if (!container.is(e.target) && // If the target of the click isn't the container...
         container.has(e.target).length === 0) // ... nor a descendant of the container
    {
        container.hide();
    }
});

这是我对这个问题找到的最简单的答案:

window.addEventListener('click', close_window = function () {
  if(event.target !== windowEl){
    windowEl.style.display = "none";
    window.removeEventListener('click', close_window, false);
  }
});

您将看到我将函数命名为“close_window”,以便在窗口关闭时删除事件侦听器。