我想在不使用滚动条的情况下垂直滚动页面。 相反，我想使用2个图像标签来滚动页面。 这是我为滚动试过的代码，但它看起来并不好看：
<style type="text/css">
div.mousescroll {
overflow: hidden;
}
div.mousescroll:hover {
overflow-y: scroll;
}
</style>
<script language="javascript" type="text/javascript">
$(function () {
$(".wrapper1").scroll(function left () {
$(".wrapper2")
.scrollLeft($(".wrapper1").scrollLeft());
});
$(".wrapper2").scroll(function right () {
$(".wrapper1")
.scrollLeft($(".wrapper2").scrollLeft());
});
});
</script>
<div id="first" class="wrapper1 ">
<div id="first2" class=" div1 ">
</div>
<br />
</div>
<br />
<div id="second" class="wrapper2 mousescroll">
<div id="second2" style=" overflow-x:scroll" class="div2">
<table>
...............
</table>
</div>
</div>
想象这个表的宽度是2000px而不是滚动条我想使用两个可以执行滚动作业的图像标签。 任何人都可以帮我这个吗？
答案 0 :(得分：0)
$(window).load(function () {
(function ($) {
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
$('#Id').slimscroll({
color: '#aaa',
size: '6px',
width: '392px',
height: '525px'
});