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javascript - 隐藏可滚动 div 的滚动条

转载 作者:搜寻专家 更新时间:2023-10-31 22:13:23 26 4
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我正在开发 HTML 5 应用程序,因此没有固定高度。我想让我的 div 可滚动,但滚动条不应该可见。有什么办法可以实现吗?

HTML:

<!DOCTYPE html>
<html>
<body>
<div id="chatlist" class="mousescroll gridcontainer">
<ul>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>
<li>Aug 19, 2011 - Here is an update to Stephen P.'s post to have a styled scroll bar. -Mike ... You set the overflow to none normally and ...</li>

</ul>
</div>
</body>
</html>

CSS:

<style>
.gridcontainer {
position: absolute;
top: 0; bottom: 0; left: 0; right: 0;
overflow: auto;
}
div#chatlist {
/**width: 50px;
height: 540px;**/
border: 1px solid black;
}
div.mousescroll {
overflow: hidden;
}
div.mousescroll:hover {
overflow-y: scroll;
}
ul {
list-style-type: none;
padding-left: 10px;
padding-right: 10px;
}
.slimScrollDiv { border: 1px solid #ccc; margin:10px; }
li {
margin-bottom:20px;
}
</style>

Javascript:

<script>
(function($) {

jQuery.fn.extend({
slimScroll: function(o) {

var ops = o;
//do it for every element that matches selector
this.each(function(){

var isOverPanel, isOverBar, isDragg, queueHide, barHeight,
divS = '<div></div>',
minBarHeight = 30,
wheelStep = 30,
o = ops || {},
cwidth = o.width || 'auto',
cheight = o.height || '250px',
size = o.size || '7px',
color = o.color || '#000',
position = o.position || 'right',
opacity = o.opacity || .4,
alwaysVisible = o.alwaysVisible === true;

//used in event handlers and for better minification
var me = $(this);

//wrap content
var wrapper = $(divS).css({
position: 'relative',
overflow: 'hidden',
width: cwidth,
height: cheight
}).attr({ 'class': 'slimScrollDiv' });

//update style for the div
me.css({
overflow: 'hidden',
width: cwidth,
height: cheight
});

//create scrollbar rail
var rail = $(divS).css({
width: '15px',
height: '100%',
position: 'absolute',
top: 0
});

//create scrollbar
var bar = $(divS).attr({
'class': 'slimScrollBar ',
style: 'border-radius: ' + size
}).css({
background: color,
width: size,
position: 'absolute',
top: 0,
opacity: opacity,
display: alwaysVisible ? 'block' : 'none',
BorderRadius: size,
MozBorderRadius: size,
WebkitBorderRadius: size,
zIndex: 99
});

//set position
var posCss = (position == 'right') ? { right: '1px' } : { left: '1px' };
rail.css(posCss);
bar.css(posCss);

//wrap it
me.wrap(wrapper);

//append to parent div
me.parent().append(bar);
me.parent().append(rail);

//make it draggable
bar.draggable({
axis: 'y',
containment: 'parent',
start: function() { isDragg = true; },
stop: function() { isDragg = false; hideBar(); },
drag: function(e)
{
//scroll content
scrollContent(0, $(this).position().top, false);
}
});

//on rail over
rail.hover(function(){
showBar();
}, function(){
hideBar();
});

//on bar over
bar.hover(function(){
isOverBar = true;
}, function(){
isOverBar = false;
});

//show on parent mouseover
me.hover(function(){
isOverPanel = true;
showBar();
hideBar();
}, function(){
isOverPanel = false;
hideBar();
});

var _onWheel = function(e)
{
//use mouse wheel only when mouse is over
if (!isOverPanel) { return; }

var e = e || window.event;

var delta = 0;
if (e.wheelDelta) { delta = -e.wheelDelta/120; }
if (e.detail) { delta = e.detail / 3; }

//scroll content
scrollContent(0, delta, true);

//stop window scroll
if (e.preventDefault) { e.preventDefault(); }
e.returnValue = false;
}

var scrollContent = function(x, y, isWheel)
{
var delta = y;

if (isWheel)
{
//move bar with mouse wheel
delta = bar.position().top + y * wheelStep;

//move bar, make sure it doesn't go out
delta = Math.max(delta, 0);
var maxTop = me.outerHeight() - bar.outerHeight();
delta = Math.min(delta, maxTop);

//scroll the scrollbar
bar.css({ top: delta + 'px' });
}

//calculate actual scroll amount
percentScroll = parseInt(bar.position().top) / (me.outerHeight() - bar.outerHeight());
delta = percentScroll * (me[0].scrollHeight - me.outerHeight());

//scroll content
me.scrollTop(delta);

//ensure bar is visible
showBar();
}

var attachWheel = function()
{
if (window.addEventListener)
{
this.addEventListener('DOMMouseScroll', _onWheel, false );
this.addEventListener('mousewheel', _onWheel, false );
}
else
{
document.attachEvent("onmousewheel", _onWheel)
}
}

//attach scroll events
attachWheel();

var getBarHeight = function()
{
//calculate scrollbar height and make sure it is not too small
barHeight = Math.max((me.outerHeight() / me[0].scrollHeight) * me.outerHeight(), minBarHeight);
bar.css({ height: barHeight + 'px' });
}

//set up initial height
getBarHeight();

var showBar = function()
{
//recalculate bar height
getBarHeight();
clearTimeout(queueHide);

//show only when required
if(barHeight >= me.outerHeight()) {
return;
}
bar.fadeIn('fast');
}

var hideBar = function()
{
//only hide when options allow it
if (!alwaysVisible)
{
queueHide = setTimeout(function(){
if (!isOverBar && !isDragg) { bar.fadeOut('slow'); }
}, 1000);
}
}

});

//maintain chainability
return this;
}
});

jQuery.fn.extend({
slimscroll: jQuery.fn.slimScroll
});

})(jQuery);


//invalid name call
$('#chatlist').slimscroll({
color: '#00f',
size: '10px',
width: '50px',
height: '150px'
});
</script>

最佳答案

我来不及回答这个问题,但只需在 css 中添加以下句子即可隐藏滚动条

.element::-webkit-scrollbar { width: 0 !important }

其中 .element 是具有滚动条的 div 的类

您可以在 http://blogs.msdn.com/b/kurlak/archive/2013/11/03/hiding-vertical-scrollbars-with-pure-css-in-chrome-ie-6-firefox-opera-and-safari.aspx 上找到更多相关信息

关于javascript - 隐藏可滚动 div 的滚动条,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/23132053/

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