运行代码框
<!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 ">
<tête>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<titre></titre>
<style type="text/css">
* { marge:0; remplissage : 0 ; }
corps { marge:20px 0 400px 20px; police : 12px Arial ; }
h1 { taille de police: 14px; }
ol,ul { marge:20px; hauteur de ligne : 160 % ; }
ul li { couleur:#f00; }
.a1 { largeur:300px; hauteur : 190 px ; bordure : 1px solide #f00 ; débordement : auto ; }
.a2 { largeur:600px; hauteur : 350 px ; marge : 100px 0 100px 80px ; bordure : 1px solide #369 ; arrière-plan :#eee url( );
}
.dumascroll_bar {
position : absolue ;
haut : 0 ;
à droite : 0 ;
indice z : 9 ;
largeur : 14 px ;
hauteur : 100 % ;
curseur : par défaut ;
-moz-user-select:aucun;
-khtml-user-select:aucun;
sélection par l'utilisateur : aucun ;
répétition d'arrière-plan : répétition-y ;
position d'arrière-plan : -42px 0 ;
flotteur : gauche ;
}
.dumascroll_arrow_up,.dumascroll_arrow_up_a,.dumascroll_handle,.dumascroll_handle_a,.dumascroll_arrow_down,.dumascroll_arrow_down_a {
position : absolue ;
gauche : 0 ;
}
.dumascroll_arrow_up,.dumascroll_arrow_up_a,.dumascroll_arrow_down,.dumascroll_arrow_down_a {
largeur : 100 % ;
hauteur : 14 px ;
couleur :#fff ;
texte-align:centre;
}
.dumascroll_arrow_up,.dumascroll_arrow_up_a { top:0; }
.dumascroll_arrow_down,.dumascroll_arrow_down_a { bottom:0; }
.dumascroll_handle,.dumascroll_handle_a { largeur:100%; répétition d'arrière-plan : répétition-y ; }
.dumascroll_arrow_up { background-position:0 0; }
.dumascroll_arrow_up_a { background-position:-14px 0; }
.dumascroll_handle { background-position:-28px 0; }
.dumascroll_handle_a { background-position:-56px 0; }
.dumascroll_arrow_down { background-position:-70px 0; }
.dumascroll_arrow_down_a { background-position:-84px 0; }
</style>
<script>
var douma = {
$:function(o){ if(document.getElementById(o)) {return document.getElementById(o);} },
getStyle:function(o) { return o.currentStyle||document.defaultView.getComputedStyle(o,null); },
getOffset:fonction(o) {
var t = o.offsetTop,h = o.offsetHeight;
while(o = o.offsetParent) { t += o.offsetTop; }
return {haut:t, hauteur:h} ;
},
liaison:fonction(o,eType,fn) {
if(o.addEventListener) { o.addEventListener(eType,fn,false); }
sinon if(o.attachEvent) { o.attachEvent("on" + eType,fn); }
else { o["on" + eType] = fn; }
},
stopEvent:fonction(e) {
e = e || fenêtre.événement;
e.stopPropagation && (e.preventDefault(),e.stopPropagation()) || (e.cancelBubble = true,e.returnValue = false);
},
setCookie:fonction(nom_c,valeur,expiredays) {
var exdate = nouvelle Date();
exdate.setDate(exdate.getDate() + expiredays);
document.cookie = c_name + "=" + escape(value) + ((expiredays == null) ? "" : ";expires=" + exdate.toGMTString());
},
getCookie:fonction(nom_c) {
si (document.cookie.length > 0) {
c_start = document.cookie.indexOf(c_name + "=");
si(c_start != -1) {
c_start = c_start + c_name.length + 1 ;
c_end = document.cookie.indexOf(";",c_start);
if(c_end == -1) { c_end = document.cookie.length; }
return unescape(document.cookie.substring(c_start,c_end));
}
}
retour "";
}
} ;
duma.BeautifyScrollBar = fonction (obj,arrowUpCss,arrowUpActiveCss,handleCss,handleActiveCss,arrowDownCss,arrowDownActiveCss) {
this.arrowUpInterval;
this.arrowDownInterval;
this.barMouseDownInterval ;
this.relY;
this.id = obj;
this.obj = duma.$(this.id);
this.setObjCss(); //Les applications css et les applications CSS
this.obj.innerHTML = '<div id="' + obj + 'Area" class="dumascroll_area">' + this.obj.innerHTML + '</div><div id="' + obj + 'Bar" class="dumascroll_bar"><div class="dumascroll_arrow_up"></div><div class="dumascroll_handle"></div><div class="dumascroll_arrow_down"></div></div>';
this.area = duma.$(obj + "Zone");
this.bar = duma.$(obj + "Bar");
this.barPos;
this.arrowUp = this.bar.getElementsByTagName("div")[0];
this.arrowUpCss = arrowUpCss;
this.arrowUpActiveCss = arrowUpActiveCss;
this.handle = this.bar.getElementsByTagName("div")[1];
this.handleCss = handleCss;
this.handleActiveCss = handleActiveCss;
this.arrowDown = this.bar.getElementsByTagName("div")[2];
this.arrowDownCss = arrowDownCss;
this.arrowDownActiveCss = arrowDownActiveCss;
this.handleMinHeight = 15 ;
this.arrowUpHeight = parseInt(duma.getStyle(this.arrowUp).height);
this.arrowDownHeight = parseInt(duma.getStyle(this.arrowDown).height);
this.areaScrollHeight = this.area.scrollHeight;
this.handleHeight = parseInt(this.area.offsetHeight/this.area.scrollHeight * (this.bar.offsetHeight - this.arrowUpHeight - this.arrowDownHeight));
}
duma.BeautifyScrollBar.prototype = {
setObjCss:fonction() {
duma.getStyle(this.obj).position == "statique" ? this.obj.style.position = "relative" : duma.getStyle(this.obj).backgroundColor == "transparent" ? this.obj.style.backgroundColor = "#fff" : null; //position de position, situation de parent; position relative; position relative;
},
sethandle:function() { //当内容超多时设置拖拽条的最小高度
this.handle.style.top = this.arrowUpHeight + "px";
si (this.handleHeight > this.handleMinHeight) {
this.handleHeight < this.bar.offsetHeight - this.arrowUpHeight - this.arrowDownHeight ? this.handle.style.height = this.handleHeight + "px" : this.handle.style.display = "none";
}
else { this.handleHeight = this.handleMinHeight; this.handle.style.height = this.handleMinHeight + "px"; }
},
setBarPos:function() { //将当前滚动的距离值存入cookie
this.barPos = this.area.scrollTop + "" ;
duma.setCookie(this.id + "CookieName",this.barPos,1);
},
getBarPos:fonction() {
this.barPos = duma.getCookie(this.id + "CookieName");
if(this.barPos!=null && this.barPos!="") {
this.area.scrollTop = this.barPos;
this.areaScroll();
}
},
clearArrowUpInterval:function() { clearInterval(this.arrowUpInterval); },
clearArrowDownInterval:function() { clearInterval(this.arrowDownInterval); },
clearBarMouseDownInterval:function() { clearInterval(this.barMouseDownInterval); },
zoneScroll:fonction() {
this.handle.style.display != "aucun" ? this.handle.style.top = this.area.scrollTop/(this.area.scrollHeight - this.area.offsetHeight) * (this.bar.offsetHeight - this.handleHeight - this.arrowUpHeight - this.arrowDownHeight) + this. arrowUpHeight + "px" : null;
},
Areakeydown:function(e) { //支持键盘上下按键
var ça = ceci;
document.onkeydown = fonction (événement) {
var e = événement || fenêtre.événement,
ek = e.keyCode || e.qui;
si(ek == 40) { that.area.scrollTop += 25 }
sinon if(ek == 38) { that.area.scrollTop -= 25 }
if(that.area.scrollTop > 0 && that.area.scrollTop < that.area.scrollHeight - that.area.offsetHeight){ duma.stopEvent(e); }
ça.setBarPos();
}
},
handleMove:fonction(e) {
var e = e || fenêtre.événement;
this.area.scrollTop = (e.clientY - this.relY - this.arrowUpHeight)/(this.bar.offsetHeight - this.handleHeight - this.arrowUpHeight - this.arrowDownHeight)*(this.area.scrollHeight - this.area .offsetHeight);
this.setBarPos();
},
handleMouseDown:fonction(e) {
var ça = ceci,e = e || fenêtre.événement;
that.relY = e.clientY - that.handle.offsetTop;
ça.handle.setCapture ? that.handle.setCapture() : null;
ça.handle.className = ça.handleActiveCss;
document.onmousemove = function(event) { that.handleMove(event); } ;
document.onmouseup = fonction() {
ça.handle.className = ça.handleCss;
ça.handle.releaseCapture ? that.handle.releaseCapture() : null;
document.onmousemove = null ;
} ;
},
barScroll:fonction(e) {
var e = e || window.event,eDir; //设置滚轮事件,e.wheelDelta与e.detail分别兼容IE、W3C，根据返回值的正负来判断滚动方向
if(e.wheelDelta) { eDir = e.wheelDelta/120; }
sinon if(e.detail) { eDir = -e.detail/3; }
eDir > 0 ? this.area.scrollTop -= 80 : this.area.scrollTop += 80; //步长设80像素比较接近window滚动条的滚动速度
if(this.area.scrollTop > 0 && this.area.scrollTop < this.area.scrollHeight - this.area.offsetHeight){ duma.stopEvent(e); }
this.setBarPos();
},
barDown:fonction(e) {
var e = e || window.event, que = ceci,
eY = e.clientY,
mStep = this.bar.offsetHeight,
documentScrollTop = document.documentElement.scrollTop || document.body.scrollTop,
hOffset = duma.getOffset(this.handle),
bOffset = duma.getOffset(this.bar);
if(documentScrollTop + eY < hOffset.top) { this.barMouseDownInterval = setInterval(function(e){
that.area.scrollTop -= that.area.offsetHeight;
if(that.area.scrollTop <= (eY + documentScrollTop - bOffset.top - that.arrowUpHeight)/(that.bar.offsetHeight - that.arrowUpHeight - that.arrowDownHeight) * that.area.scrollHeight) { that.clearBarMouseDownInterval( ); }
ça.setBarPos();
},80); }
sinon if(documentScrollTop + eY > hOffset.top + hOffset.height) { this.barMouseDownInterval = setInterval(function(){
that.area.scrollTop += that.area.offsetHeight;
if(that.area.scrollTop >= (eY + documentScrollTop - bOffset.top - that.arrowUpHeight - hOffset.height)/(that.bar.offsetHeight - that.arrowUpHeight - that.arrowDownHeight) * that.area.scrollHeight) { that.clearBarMouseDownInterval(); }
ça.setBarPos();
},80); }
duma.stopEvent(e);
},
arrowUpMouseDown:fonction(e) {
var ça = ceci;
this.arrowUpInterval = setInterval(function(){ that.area.scrollTop -= 25; that.setBarPos(); },10);
this.arrowUp.className = this.arrowUpActiveCss;
duma.stopEvent(e);
},
arrowUpMouseUp:function() { this.clearArrowUpInterval(); this.arrowUp.className = this.arrowUpCss; },
arrowUpMouseOut:function() { this.clearArrowUpInterval(); this.arrowUp.className = this.arrowUpCss; },
arrowDownMouseDown:fonction(e) {
var ça = ceci;
this.arrowDownInterval = setInterval(function(){ that.area.scrollTop += 25; that.setBarPos(); },10);
this.arrowDown.className = this.arrowDownActiveCss;
duma.stopEvent(e);
},
arrowDownMouseUp:function() { this.clearArrowDownInterval(); this.arrowDown.className = this.arrowDownCss; },
arrowDownMouseOut:function() { this.clearArrowDownInterval(); this.arrowDown.className = this.arrowDownCss; },
exécuter:fonction(){
var ça = ceci;
this.sethandle();
this.areaScroll();
this.getBarPos();
this.area.onscroll = function(){that.areaScroll()};
this.area.onmouseover = this.bar.onmouseover = function(event){that.areakeydown(event)};
this.area.onmouseout = this.bar.onmouseout = function(){document.onkeydown = null};
this.handle.onmousedown = function(event){that.handleMouseDown(event)};
this.bar.onmousedown = function(event){that.barDown(event)};
this.bar.onmouseup = function(){that.clearBarMouseDownInterval()};
this.bar.onmouseout = function(){that.clearBarMouseDownInterval()};
this.arrowUp.onmousedown = function(event){that.arrowUpMouseDown(event)} ;
this.arrowUp.onmouseup = function(){that.arrowUpMouseUp()};
this.arrowUp.onmouseout = function(){that.arrowUpMouseOut()};
this.arrowDown.onmousedown = function(event){that.arrowDownMouseDown(event)} ;
this.arrowDown.onmouseup = function(){that.arrowDownMouseUp()};
this.arrowDown.onmouseout = function(){that.arrowDownMouseOut()};
duma.bind(this.obj,"mousewheel",function(event){that.barScroll(event)});
duma.bind(this.obj,"DOMMouseScroll",function(event){that.barScroll(event)});
}
}
duma.BeautifyScrollBar.init = fonction() {
var o = document.getElementsByTagName("div"),
oLen = o.longueur,
dumascrollClass = /bdumascrollb/,
oArr = [],
oArrLen = oArr.longueur ;
pour(var i=0; i<oLen; i++) {
if(dumascrollClass.test(o[i].className)) {
oArr.push("dumaScrollAreaId_" + i);
oArrLen = oArr.longueur ;
o[i].id = oArr[oArrLen - 1];
}
}
pour(var j=0; j<oArrLen; j++) {
new duma.BeautifyScrollBar(oArr[j],"dumascroll_arrow_up","dumascroll_arrow_up_a","dumascroll_handle","dumascroll_handle_a","dumascroll_arrow_down","dumascroll_arrow_down_a").run();
}
}
duma.bind(window,"load",duma.BeautifyScrollBar.init);
</script>
</tête>
<corps>
<div class="a dumascroll b" style="width:300px; height:190px; padding:5px; border:1px solid #f00; line-height:400%; overflow:hidden;">
我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />我是第一个被渲染的，真不幸<br />
</div>
<div class="a dumfaf" style="width:400px; height:100px; margin:20px; border:2px inset #eee; overflow:auto;">
我还是普通的，我不希望被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />
我还是普通的，我不希望被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />我还是普通的，我不希望被渲染，我就不用你的class，拿我Classe />我还是普通的，我不希望被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />我还是普通的，我不希望被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />我还是普通的，我不希望被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />我还是普通的，我不希望被渲染，我就不用你的class，拿我怎么样？哈哈哈！<br />我还是普通的，我不希望被渲染，我就不用你的class，哈哈哈哈？ ！<br />
</div>
<div class="a dumascroll" style="width:780px; height:350px; margin:20px; border:1px solid #369; background:#eee url( http://bbs.blueidea.com/thread-2936181- 1-3.html " target="">以往版本</a></li>
</ol>
<h2>将来版本可继续扩展的功能有：</h2>
<ul>
<li>增加空格键的«下方向»»快速滚动支持（更好地模拟windows滚动条用户体验）</li>
<li>增加页面body的渲染支持</li>
<li>增加textarea的渲染支持</li>
<li>Bogue de la div将大幅修改）</li>
<li>
</ul>
<p>期待大家帮忙寻找新bug并提出宝贵建议，相信下一版本将做的更好，谢谢（QQ：149561420，gTalk： [email protected] ）。</p>
</corps>
</html>
图片自定义滚动条3.0(Duma «自动渲染版»),也许世间万物都会变，但是真挚的爱，却永远留存在心中！）
将来版本可继续扩展的功能有: