图片滚动带滚动条
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>自定义滚动条</title>
<style type="text/css">
body,div,ul,li,p{margin:0;padding:0;}
body{background:#3e3e3e;font:14px/1.5 \5fae\8f6f\96c5\9ed1;}
#box{width:600px;margin:20px auto;}
.list{position:relative;width:600px;height:144px;margin-bottom:10px;overflow:hidden;border-radius:8px;}
.list ul{position:absolute;top:0;left:0;height:144px;}
.list li{display:inline;float:left;width:144px;height:144px;list-style:none;background:#000;margin-right:8px;border-radius:8px;}
.list li img{float:left;width:124px;height:100px;border-radius:5px;margin:10px 0 0 10px;}
.list li p{float:left;color:#fff;width:100%;text-align:center;line-height:34px;}
.scrollBar{position:relative;height:19px;background:#0a0a0a;overflow:hidden;}
.scrollBar .barL,.scrollBar .barR,.scrollBar .barLStop,.scrollBar .barRStop{position:absolute;top:0;width:28px;height:19px;cursor:pointer;background:url(http://www.codefans.net/jscss/demoimg/201107/03.gif) no-repeat;}
.scrollBar .barL{left:0;}
.scrollBar .barR{right:0;background-position:right 0;}
.scrollBar .barLStop{left:0;background-position:0 -19px;cursor:default;}
.scrollBar .barRStop{right:0;background-position:right -19px;cursor:default;}
.scrollBar .barM{position:relative;height:15px;border:1px solid #545454;border-width:1px 0;margin:0 28px;padding:1px 0;z-index:1;cursor:pointer;}
.scrollBar .bar{position:absolute;top:1px;left:0;width:150px;height:15px;cursor:e-resize;background:url(http://www.codefans.net/jscss/demoimg/201107/01.gif) repeat-x;}
.scrollBar .bar .l,.scrollBar .bar .r{position:absolute;top:0;width:6px;height:15px;background:url(http://www.codefans.net/jscss/demoimg/201107/02.gif) no-repeat;}
.scrollBar .bar .l{left:-6px;}
.scrollBar .bar .r{right:-6px;background-position:right 0;}
#desc{color:#ccc;width:578px;padding:10px;margin:0 auto;line-height:2;border:1px dashed #666;}
#desc dd{margin-left:2em;}
.ta-r{text-align:right;}
</style>
<script type="text/javascript">
/*-------------------------- +
获取id, class, tagName
+-------------------------- */
var get = {
byId: function(id) {
return typeof id === "string" ? document.getElementById(id) : id
},
byClass: function(sClass, oParent) {
var aClass = [];
var reClass = new RegExp("(^| )" + sClass + "( |$)");
var aElem = this.byTagName("*", oParent);
for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);
return aClass
},
byTagName: function(elem, obj) {
return (obj || document).getElementsByTagName(elem)
}
};
/*-------------------------- +
获取最终样式
+-------------------------- */
function getStyle(obj, attr)
{
return parseFloat(obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj, null)[attr])
}
window.onload = function ()
{
var oBox = get.byId("box");
var oScrollBar = get.byClass("scrollBar", oBox)[0];
var oList = get.byClass("list", oBox)[0];
var oUl = get.byTagName("ul", oBox)[0];
var aLi = get.byTagName("li", oBox);
var oBarL = get.byClass("barL", oScrollBar)[0];
var oBarM = get.byClass("barM", oScrollBar)[0];
var oBarR = get.byClass("barR", oScrollBar)[0];
var oBar = get.byClass("bar", oBarM)[0];
var maxL = oBarM.offsetWidth - oBar.offsetWidth;
var iMarginRight = getStyle(aLi[0], "marginRight");
var timer = null;
var iScale = 0;
var disX = 0;
var i = 0;
//图片列表容器动态设置宽度
oUl.style.width = (aLi[0].offsetWidth + iMarginRight) * aLi.length + "px";
//拖动流动条
oBar.onmousedown = function (event)
{
var event = event || window.event;
disX = event.clientX - oBar.offsetLeft;
document.onmousemove = function (event)
{
var event = event || window.event;
var iL = event.clientX - disX;
iL <= 0 && (iL = 0);
iL >= maxL && (iL = maxL);
oBar.style.left = iL + "px";
iScale = iL / maxL;
startMove(oUl, parseInt((oList.offsetWidth + iMarginRight - oUl.offsetWidth) * iScale));
isStop();
return false
};
document.onmouseup = function ()
{
document.onmousemove = null;
document.onmouseup = null
};
return false
};
//阻止滚动条点击事件冒泡
oBar.onclick = function (event)
{
(event || window.event).cancelBubble = true
};
//滚动条左右按钮鼠标移入及键盘左右键按下事件
oBarL.onmouseover = oBarR.onmouseover = document.onkeydown = function (event)
{
clearInterval(timer);
var event = event || window.event;
var iSpeed = 0;
if (this == oBarR || event.keyCode == 39)
{
iSpeed = 5
}
else if(this == oBarL || event.keyCode == 37)
{
iSpeed = -5
}
timer = setInterval(function ()
{
togetherMove(getStyle(oBar, "left") + iSpeed, 1)
}, 30)
};
//滚动条左右按钮鼠标移开及键盘左右键抬起事件
oBarL.onmouseout = oBarR.onmouseout = document.onkeyup = function ()
{
clearInterval(timer)
};
//滚动条可移动区域点击事件
oBarM.onclick = function (event)
{
var iTarget = (event || window.event).clientX - oBox.offsetLeft - this.offsetLeft - oBar.offsetWidth / 2;
togetherMove(iTarget)
};
//图片列表和流动条同时移动
function togetherMove(iTarget, buffer)
{
if (iTarget <= 0)
{
timer && clearInterval(timer);
iTarget = 0
}
else if (iTarget >= maxL)
{
timer && clearInterval(timer);
iTarget = maxL
}
iScale = iTarget / maxL;
startMove(oUl, parseInt((oList.offsetWidth + iMarginRight - oUl.offsetWidth) * iScale), function () {isStop()}, buffer);
startMove(oBar, iTarget, function () {isStop()}, buffer)
}
//判断滚动条是否到达边界
function isStop()
{
oBarL.className = "barL";
oBarR.className = "barR";
switch (oBar.offsetLeft)
{
case 0:
/(^|\s)barLStop(\s|$)/.test(oBarL.className) || (oBarL.className += " barLStop");
break;
case maxL:
/(^|\s)barRStop(\s|$)/.test(oBarR.className) || (oBarR.className += " barRStop");
break;
}
}
isStop()
};
function startMove(obj, iTarget, fnEnd, buffer)
{
clearInterval(obj.timer);
obj.timer = setInterval(function ()
{
doMove(obj, iTarget, fnEnd, buffer)
}, 25)
}
function doMove(obj, iTarget, fnEnd, buffer)
{
var iLeft = getStyle(obj, "left");
var iSpeed = (iTarget - iLeft) / (buffer || 5);
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
iLeft == iTarget ? (clearInterval(obj.timer), fnEnd && fnEnd()) : obj.style.left = iLeft + iSpeed + "px"
}
</script>
</head>
<body>
<div id="box">
<div class="list">
<ul>
<li><img src="/jscss/demoimg/wall_s1.jpg" /><p>iPhone 4</p></li>
<li><img src="/jscss/demoimg/wall_s2.jpg" /><p>iPad 2</p></li>
<li><img src="/jscss/demoimg/wall_s3.jpg" /><p>iPod touch</p></li>
<li><img src="/jscss/demoimg/wall_s4.jpg" /><p>iPod classic</p></li>
<li><img src="/jscss/demoimg/wall_s5.jpg" /><p>iPod shuffle</p></li>
<li><img src="/jscss/demoimg/wall_s6.jpg" /><p>iPod nano</p></li>
<li><img src="/jscss/demoimg/wall_s7.jpg" /><p>MacBook Air</p></li>
<li><img src="/jscss/demoimg/wall_s8.jpg" /><p>MacBook Pro</p></li>
<li><img src="/jscss/demoimg/wall_s9.jpg" /><p>Mac mini</p></li>
<li><img src="/jscss/demoimg/wall_s10.jpg" /><p>Mac Pro</p></li>
</ul>
</div>
<!--/list-->
<div class="scrollBar">
<div class="barL"></div>
<div class="barM">
<div class="bar">
<div class="l"></div>
<div class="r"></div>
</div>
</div>
<div class="barR"></div>
</div>
<!--/scrollBar-->
</div>
<!--/box-->
<dl id="desc">
<dt>功能说明：</dt>
<dd>① 拖动滚动条，图片列表缓冲滑动至目标点；</dd>
<dd>② 滚动条两端鼠标移入自动滑动；</dd>
<dd>③ 滚动条滑动到两端自动更换为停止标识；</dd>
<dd>④ 点击滚动条黑色背景区，滚动条及图片列表缓冲滑动至目标点；</dd>
<dd>⑤ 支持键盘左右键；</dd>
<dd>⑥ 鼠标滚轮功能待续...</dd>
<dd class="ta-r">QQ:21314130, By — Ferris</dd>
</dl>
</body>
</html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>自定义滚动条</title>
<style type="text/css">
body,div,ul,li,p{margin:0;padding:0;}
body{background:#3e3e3e;font:14px/1.5 \5fae\8f6f\96c5\9ed1;}
#box{width:600px;margin:20px auto;}
.list{position:relative;width:600px;height:144px;margin-bottom:10px;overflow:hidden;border-radius:8px;}
.list ul{position:absolute;top:0;left:0;height:144px;}
.list li{display:inline;float:left;width:144px;height:144px;list-style:none;background:#000;margin-right:8px;border-radius:8px;}
.list li img{float:left;width:124px;height:100px;border-radius:5px;margin:10px 0 0 10px;}
.list li p{float:left;color:#fff;width:100%;text-align:center;line-height:34px;}
.scrollBar{position:relative;height:19px;background:#0a0a0a;overflow:hidden;}
.scrollBar .barL,.scrollBar .barR,.scrollBar .barLStop,.scrollBar .barRStop{position:absolute;top:0;width:28px;height:19px;cursor:pointer;background:url(http://www.codefans.net/jscss/demoimg/201107/03.gif) no-repeat;}
.scrollBar .barL{left:0;}
.scrollBar .barR{right:0;background-position:right 0;}
.scrollBar .barLStop{left:0;background-position:0 -19px;cursor:default;}
.scrollBar .barRStop{right:0;background-position:right -19px;cursor:default;}
.scrollBar .barM{position:relative;height:15px;border:1px solid #545454;border-width:1px 0;margin:0 28px;padding:1px 0;z-index:1;cursor:pointer;}
.scrollBar .bar{position:absolute;top:1px;left:0;width:150px;height:15px;cursor:e-resize;background:url(http://www.codefans.net/jscss/demoimg/201107/01.gif) repeat-x;}
.scrollBar .bar .l,.scrollBar .bar .r{position:absolute;top:0;width:6px;height:15px;background:url(http://www.codefans.net/jscss/demoimg/201107/02.gif) no-repeat;}
.scrollBar .bar .l{left:-6px;}
.scrollBar .bar .r{right:-6px;background-position:right 0;}
#desc{color:#ccc;width:578px;padding:10px;margin:0 auto;line-height:2;border:1px dashed #666;}
#desc dd{margin-left:2em;}
.ta-r{text-align:right;}
</style>
<script type="text/javascript">
/*-------------------------- +
获取id, class, tagName
+-------------------------- */
var get = {
byId: function(id) {
return typeof id === "string" ? document.getElementById(id) : id
},
byClass: function(sClass, oParent) {
var aClass = [];
var reClass = new RegExp("(^| )" + sClass + "( |$)");
var aElem = this.byTagName("*", oParent);
for (var i = 0; i < aElem.length; i++) reClass.test(aElem[i].className) && aClass.push(aElem[i]);
return aClass
},
byTagName: function(elem, obj) {
return (obj || document).getElementsByTagName(elem)
}
};
/*-------------------------- +
获取最终样式
+-------------------------- */
function getStyle(obj, attr)
{
return parseFloat(obj.currentStyle ? obj.currentStyle[attr] : getComputedStyle(obj, null)[attr])
}
window.onload = function ()
{
var oBox = get.byId("box");
var oScrollBar = get.byClass("scrollBar", oBox)[0];
var oList = get.byClass("list", oBox)[0];
var oUl = get.byTagName("ul", oBox)[0];
var aLi = get.byTagName("li", oBox);
var oBarL = get.byClass("barL", oScrollBar)[0];
var oBarM = get.byClass("barM", oScrollBar)[0];
var oBarR = get.byClass("barR", oScrollBar)[0];
var oBar = get.byClass("bar", oBarM)[0];
var maxL = oBarM.offsetWidth - oBar.offsetWidth;
var iMarginRight = getStyle(aLi[0], "marginRight");
var timer = null;
var iScale = 0;
var disX = 0;
var i = 0;
//图片列表容器动态设置宽度
oUl.style.width = (aLi[0].offsetWidth + iMarginRight) * aLi.length + "px";
//拖动流动条
oBar.onmousedown = function (event)
{
var event = event || window.event;
disX = event.clientX - oBar.offsetLeft;
document.onmousemove = function (event)
{
var event = event || window.event;
var iL = event.clientX - disX;
iL <= 0 && (iL = 0);
iL >= maxL && (iL = maxL);
oBar.style.left = iL + "px";
iScale = iL / maxL;
startMove(oUl, parseInt((oList.offsetWidth + iMarginRight - oUl.offsetWidth) * iScale));
isStop();
return false
};
document.onmouseup = function ()
{
document.onmousemove = null;
document.onmouseup = null
};
return false
};
//阻止滚动条点击事件冒泡
oBar.onclick = function (event)
{
(event || window.event).cancelBubble = true
};
//滚动条左右按钮鼠标移入及键盘左右键按下事件
oBarL.onmouseover = oBarR.onmouseover = document.onkeydown = function (event)
{
clearInterval(timer);
var event = event || window.event;
var iSpeed = 0;
if (this == oBarR || event.keyCode == 39)
{
iSpeed = 5
}
else if(this == oBarL || event.keyCode == 37)
{
iSpeed = -5
}
timer = setInterval(function ()
{
togetherMove(getStyle(oBar, "left") + iSpeed, 1)
}, 30)
};
//滚动条左右按钮鼠标移开及键盘左右键抬起事件
oBarL.onmouseout = oBarR.onmouseout = document.onkeyup = function ()
{
clearInterval(timer)
};
//滚动条可移动区域点击事件
oBarM.onclick = function (event)
{
var iTarget = (event || window.event).clientX - oBox.offsetLeft - this.offsetLeft - oBar.offsetWidth / 2;
togetherMove(iTarget)
};
//图片列表和流动条同时移动
function togetherMove(iTarget, buffer)
{
if (iTarget <= 0)
{
timer && clearInterval(timer);
iTarget = 0
}
else if (iTarget >= maxL)
{
timer && clearInterval(timer);
iTarget = maxL
}
iScale = iTarget / maxL;
startMove(oUl, parseInt((oList.offsetWidth + iMarginRight - oUl.offsetWidth) * iScale), function () {isStop()}, buffer);
startMove(oBar, iTarget, function () {isStop()}, buffer)
}
//判断滚动条是否到达边界
function isStop()
{
oBarL.className = "barL";
oBarR.className = "barR";
switch (oBar.offsetLeft)
{
case 0:
/(^|\s)barLStop(\s|$)/.test(oBarL.className) || (oBarL.className += " barLStop");
break;
case maxL:
/(^|\s)barRStop(\s|$)/.test(oBarR.className) || (oBarR.className += " barRStop");
break;
}
}
isStop()
};
function startMove(obj, iTarget, fnEnd, buffer)
{
clearInterval(obj.timer);
obj.timer = setInterval(function ()
{
doMove(obj, iTarget, fnEnd, buffer)
}, 25)
}
function doMove(obj, iTarget, fnEnd, buffer)
{
var iLeft = getStyle(obj, "left");
var iSpeed = (iTarget - iLeft) / (buffer || 5);
iSpeed = iSpeed > 0 ? Math.ceil(iSpeed) : Math.floor(iSpeed);
iLeft == iTarget ? (clearInterval(obj.timer), fnEnd && fnEnd()) : obj.style.left = iLeft + iSpeed + "px"
}
</script>
</head>
<body>
<div id="box">
<div class="list">
<ul>
<li><img src="/jscss/demoimg/wall_s1.jpg" /><p>iPhone 4</p></li>
<li><img src="/jscss/demoimg/wall_s2.jpg" /><p>iPad 2</p></li>
<li><img src="/jscss/demoimg/wall_s3.jpg" /><p>iPod touch</p></li>
<li><img src="/jscss/demoimg/wall_s4.jpg" /><p>iPod classic</p></li>
<li><img src="/jscss/demoimg/wall_s5.jpg" /><p>iPod shuffle</p></li>
<li><img src="/jscss/demoimg/wall_s6.jpg" /><p>iPod nano</p></li>
<li><img src="/jscss/demoimg/wall_s7.jpg" /><p>MacBook Air</p></li>
<li><img src="/jscss/demoimg/wall_s8.jpg" /><p>MacBook Pro</p></li>
<li><img src="/jscss/demoimg/wall_s9.jpg" /><p>Mac mini</p></li>
<li><img src="/jscss/demoimg/wall_s10.jpg" /><p>Mac Pro</p></li>
</ul>
</div>
<!--/list-->
<div class="scrollBar">
<div class="barL"></div>
<div class="barM">
<div class="bar">
<div class="l"></div>
<div class="r"></div>
</div>
</div>
<div class="barR"></div>
</div>
<!--/scrollBar-->
</div>
<!--/box-->
<dl id="desc">
<dt>功能说明：</dt>
<dd>① 拖动滚动条，图片列表缓冲滑动至目标点；</dd>
<dd>② 滚动条两端鼠标移入自动滑动；</dd>
<dd>③ 滚动条滑动到两端自动更换为停止标识；</dd>
<dd>④ 点击滚动条黑色背景区，滚动条及图片列表缓冲滑动至目标点；</dd>
<dd>⑤ 支持键盘左右键；</dd>
<dd>⑥ 鼠标滚轮功能待续...</dd>
<dd class="ta-r">QQ:21314130, By — Ferris</dd>
</dl>
</body>
</html>