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javascript – 修复了可拖动固定元素内的元素

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内容图文

我有一个可拖动的固定元素,我想在其中保留另一个固定元素,从右到左具有位置转换效果.我尝试用JS计算左侧和顶部位置,但我遇到过渡问题.
我如何将这个元素(橙色菜单)保留在可拖动的div(蓝色)中并显示和隐藏(部分)？

$('#fixed-draggable-div').draggable();
#fixed-draggable-div {
  position: fixed;
  top: 50px;
  left: 35%;
  width: 200px;
  height: 300px;
  background: CornflowerBlue;
  overflow-y: scroll;
  padding: 0.5em 1em;
}

#fixed-menu {
  width: 100px;
  background: DarkOrange;
  position: fixed;
  right: -90px;
  top: 40%;
  transition: 1s right;
}

#fixed-menu:hover {
  right: 0;
  transition: 1s right;
}
<html>
<head>
  <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
  <script src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.11.2/jquery-ui.min.js"></script>
</head>
<body>
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum semper molestie arcu. Donec sem sapien, finibus tempor dapibus ut, bibendum vel nunc. Curabitur nunc nulla, ultrices a dictum sed, mattis a risus. Praesent malesuada auctor nisl et sollicitudin. Nunc turpis erat, commodo et lorem consequat, egestas sollicitudin nibh. Aliquam rutrum sapien varius consequat sodales. Vestibulum at tempor mi.</p>

  <p>Pellentesque blandit arcu metus, id imperdiet urna luctus id. Sed ipsum magna, sodales quis mauris eu, sollicitudin tempus diam. Integer tristique est sit amet orci maximus lobortis. Nam porttitor ultrices bibendum. Vestibulum blandit lacinia faucibus. Morbi nulla sapien, maximus at ex tempor, consectetur aliquam sem. Sed feugiat rutrum est ac porttitor. Aliquam gravida, diam nec rhoncus vehicula, velit justo porta sapien, eget fringilla libero justo vel velit. Duis ultrices rutrum gravida.</p>

  <p>Cras quis pharetra turpis. Integer sit amet nunc aliquam, iaculis diam quis, vestibulum enim. Praesent a pulvinar lacus. Nunc in mauris sed tortor consequat volutpat fermentum sed nisl. Cras aliquam lectus mauris, nec ultricies tellus tincidunt vel. Fusce dictum in enim vel sollicitudin. Nam imperdiet molestie dignissim. Suspendisse eleifend maximus orci, eget fringilla enim volutpat et. Quisque erat erat, mollis in tellus ac, rhoncus condimentum ipsum.</p>
  
  <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum semper molestie arcu. Donec sem sapien, finibus tempor dapibus ut, bibendum vel nunc. Curabitur nunc nulla, ultrices a dictum sed, mattis a risus. Praesent malesuada auctor nisl et sollicitudin. Nunc turpis erat, commodo et lorem consequat, egestas sollicitudin nibh. Aliquam rutrum sapien varius consequat sodales. Vestibulum at tempor mi.</p>

  <p>Pellentesque blandit arcu metus, id imperdiet urna luctus id. Sed ipsum magna, sodales quis mauris eu, sollicitudin tempus diam. Integer tristique est sit amet orci maximus lobortis. Nam porttitor ultrices bibendum. Vestibulum blandit lacinia faucibus. Morbi nulla sapien, maximus at ex tempor, consectetur aliquam sem. Sed feugiat rutrum est ac porttitor. Aliquam gravida, diam nec rhoncus vehicula, velit justo porta sapien, eget fringilla libero justo vel velit. Duis ultrices rutrum gravida.</p>

  <p>Cras quis pharetra turpis. Integer sit amet nunc aliquam, iaculis diam quis, vestibulum enim. Praesent a pulvinar lacus. Nunc in mauris sed tortor consequat volutpat fermentum sed nisl. Cras aliquam lectus mauris, nec ultricies tellus tincidunt vel. Fusce dictum in enim vel sollicitudin. Nam imperdiet molestie dignissim. Suspendisse eleifend maximus orci, eget fringilla enim volutpat et. Quisque erat erat, mollis in tellus ac, rhoncus condimentum ipsum.</p>
  
  <div id="fixed-draggable-div">
    <h3>Draggable element</h3>
    <p>Lorem ipsum dolor sit amet, consectetur adipiscing elit. Vestibulum semper molestie arcu. Donec sem sapien, finibus tempor dapibus ut, bibendum vel nunc. Curabitur nunc nulla, ultrices a dictum sed, mattis a risus. Praesent malesuada auctor nisl et sollicitudin. Nunc turpis erat, commodo et lorem consequat, egestas sollicitudin nibh. Aliquam rutrum sapien varius consequat sodales. Vestibulum at tempor mi.</p>
  <p>Pellentesque blandit arcu metus, id imperdiet urna luctus id. Sed ipsum magna, sodales quis mauris eu, sollicitudin tempus diam. Integer tristique est sit amet orci maximus lobortis. Nam porttitor ultrices bibendum. Vestibulum blandit lacinia faucibus. Morbi nulla sapien, maximus at ex tempor, consectetur aliquam sem. Sed feugiat rutrum est ac porttitor. Aliquam gravida, diam nec rhoncus vehicula, velit justo porta sapien, eget fringilla libero justo vel velit. Duis ultrices rutrum gravida.</p>
    <ul id="fixed-menu">
      <li>Element 1</li>
      <li>Element 1</li>
      <li>Element 1</li>
    </ul>
  </div>
  
</body>  
</html>

http://jsfiddle.net/6pwn3wyp/

解决方法:

这可以解决您的问题,但您必须更改偏移值.我在固定元素的滚动事件中将偏移更改为顶部.此外 – 你必须改变你的#fixed-menuto绝对的位置.固定选项适用于整个窗口.

CSS – 

#fixed-menu {
  width: 100px;
  background: DarkOrange;
  position: absolute; //this line
  right: -90px;
  top: 40%;
  transition: 1s right;
}

JQuery – 

$('#fixed-draggable-div').scroll(function(){
   $('#fixed-menu').css(
      'top', $('#fixed-draggable-div').scrollTop()+100);
});

Fiddle

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