问题描述
当使用 overflow:hidden;
时,我注意到了一个奇怪的自动滚动行为:(您可以使用Tab键更改焦点)。
由于溢出被设置为隐藏,它不会触发 onScroll()
事件。所以我想知道我可以如何控制/重置这个滚动?
我的目标(它不包含在演示中)是隐藏原生滚动条,并在 translateY()
时通过CSS转换重新创建滚动效果。 onFocus()
事件被触发。
这个:
当 focusout
最后一个按钮时, #parent
with overflow-y:hidden
将被重置为0。
$('#reset')。focusout(function(){$('#parent')。scrollTo(0);});
* {box-sizing:border-box;} html,body {margin :0; background-color:whitesmoke; font-family:Roboto;} main {margin:16px auto;宽度:500px;身高:140px; background-color:white;}#parent {width:100%; height:100px; overflow:hidden;} ul {list-style:none;保证金:0;填充:0; font-size:0; counter-reset:line;} ul:focus-within {border:2px dashed#E91E63;} li {padding:16px;宽度:50%;显示:inline-block; text-align:center;} button {border:none;宽度:100%;显示:块;背景颜色:#3F51B5;白颜色;文字修饰:无; font-size:16px;行高:1.5; } button:hover {color:red;} button:focus {background-color:#E91E63;}
< script src =https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js>< / script>< ; script src =https://cdnjs.cloudflare.com/ajax/libs/jquery-scrollTo/1.4.2/jquery.scrollTo.min.js>< / script>< div id =parent >< UL> < li><按钮>我可以聚焦#1< / button>< / li> < li><按钮>我可以聚焦#2< / button>< / li> < li><按钮>我可以聚焦#3< / button>< / li> < li><按钮>我可以聚焦#4< / button>< / li> < li><按钮>我可以聚焦#5< / button>< / li> < li><按钮>我可以聚焦#6< / button>< / li> < li><按钮>我可以聚焦#7< / button>< / li> < li><按钮>我可以聚焦#8< / button>< / li> < li><按钮>我可以聚焦#9< / button>< / li> < li>< button id =reset>将焦点移出重置滚动#10< / button>< / li> < / div>
I've noticed strange auto scroll behaviour when using overflow: hidden;
on a container with focusable elements inside it: https://codepen.io/anon/pen/aVmavx (you can change focus by using tab key).It does not trigger onScroll()
event since the overflow is set to hidden. So i wonder how I could control / reset this "scroll"?My goal (it's not included in the demo) is to hide native scroll bar and to re-create a scroll effect with CSS transition on translateY()
when the onFocus()
event is triggered.
You can do it like this :
When you focusout
the last button, the scroll of the #parent
with overflow-y: hidden
will be reset to 0.
$('#reset').focusout(function(){
$('#parent').scrollTo(0);
});
* {
box-sizing: border-box;
}
html, body {
margin: 0;
background-color: whitesmoke;
font-family: Roboto;
}
main {
margin: 16px auto;
width: 500px;
height: 140px;
background-color: white;
}
#parent {
width: 100%;
height: 100px;
overflow: hidden;
}
ul {
list-style: none;
margin: 0;
padding: 0;
font-size: 0;
counter-reset: line;
}
ul:focus-within {
border: 2px dashed #E91E63;
}
li {
padding: 16px;
width: 50%;
display: inline-block;
text-align: center;
}
button {
border: none;
width: 100%;
display: block;
background-color: #3F51B5;
color: white;
text-decoration: none;
font-size: 16px;
line-height: 1.5;
}
button:hover{
color:red;
}
button:focus {
background-color: #E91E63;
}
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery-scrollTo/1.4.2/jquery.scrollTo.min.js"></script>
<div id="parent">
<ul>
<li><button>I am focusable #1</button></li>
<li><button>I am focusable #2</button></li>
<li><button>I am focusable #3</button></li>
<li><button>I am focusable #4</button></li>
<li><button>I am focusable #5</button></li>
<li><button>I am focusable #6</button></li>
<li><button>I am focusable #7</button></li>
<li><button>I am focusable #8</button></li>
<li><button>I am focusable #9</button></li>
<li><button id="reset">Focus out reset the scroll #10</button></li>
</ul>
</div>
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