Javascript 隐藏可滚动div的滚动条
我正在开发HTML5应用程序，因此没有固定高度。我想使我的Javascript 隐藏可滚动div的滚动条,javascript,jquery,css,html,Javascript,Jquery,Css,Html,我正在开发HTML5应用程序，因此没有固定高度。我想使我的div可滚动，但滚动条不应可见。有没有办法做到这一点 HTML: <!DOCTYPE html> <html> <body> <div id="chatlist" class="mousescroll gridcontainer"> <ul> <li>Aug 19, 2011 - Here is an update to
div<!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>
<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>
<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>
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
- 2011年8月19日-这里是对Stephen P.帖子的更新，它有一个样式化的滚动条-迈克。。。您通常将溢出设置为“无”，然后
<!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>
<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>
<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>
.gridcontainer{
位置：绝对位置；
顶部：0；底部：0；左侧：0；右侧：0；
溢出：自动；
}
聊天室{
/**宽度：50px；
高度：540px**/
边框：1px纯黑；
}
滑鼠卷{
溢出：隐藏；
}
分区鼠标滚动：悬停{
溢出y：滚动；
}
保险商实验室{
列表样式类型：无；
左侧填充：10px；
右边填充：10px；
}
.slimScrollDiv{边框：1px实心#ccc；边距：10px；}
李{
边缘底部：20px；
}
<!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>
<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>
<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
$('#chatlist').slimscroll({
color: '#00f',
size: '10px',
width: '50px',
height: '150px'
});
</script>
（函数（$）{
jQuery.fn.extend({
滚动条：功能（o）{
var-ops=o；
//对与选择器匹配的每个元素执行此操作
这个。每个（函数（）{
变量isOverPanel、isOverBar、isDragg、队列隐藏、条形高度、，
divS=“”，
minBarHeight=30，
车轮踏板=30，
o=ops |{}，
cwidth=o.width | |“自动”，
cheight=o.高度| |“250px”，
尺寸=o.size | |“7px”，
color=o.color | |‘#000’，
位置=o。位置| |“右”，
不透明度=o.opacity | |.4，
alwaysVisible=o.alwaysVisible==true；
//在事件处理程序中使用，以便更好地缩小
var me=$（此）；
//包装内容
var包装器=$（divS）.css({
位置：'相对'，
溢出：“隐藏”，
宽度：cwidth，
身高：切特
}).attr（{'class'：'slimScrollDiv'}）；
//更新div的样式
me.css({
溢出：'