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never sliderbar(js版简单的滑动条控件)_a

发布时间:2020-01-17 02:37:22

已经再次更新:

支持实时监控sliderbar的数据,允许有callback回调的函数,有示例,持续更新中......

1、可自定样式SetStyle()

2、带有onSroll功能

3、有setSldPoint(设置位置)接口

4、有getSldPoint(取得位置)接口

5、可自己设置sliderBar的最大值(不是sliderbar的长度,而是值)

6、自定义微调功能(setIncrement(10)),默认为5; <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><HTML><HEAD><TITLE> never Slider Bar </TITLE><META NAME="Generator" CONTENT="EditPlus"><META NAME="Author" CONTENT="never-online, blueDestiny"><META NAME="Keywords" CONTENT="javascript Slider Bar"><META NAME="Description" CONTENT="javascript Slider Bar"><style>body { background-color:#fff; text-align:center; font-family:verdana; font-size:9pt; }.sliderObj { width:350px; height:25px; background-color:#fff; border:1px solid #666666; }.sliderBar { width:20px; background-color:#666666; border:1px solid #333; }.sliderBtn { width:30px; background-color:#666666; color:#fff; border:1px solid #000000; }.r-sliderObj { width:300px; height:25px; background-color:#fff; border:1px solid #CC0000; }.r-sliderBar { width:20px; background-color:#CC0000; border:1px solid #333; }.r-sliderBtn { width:20px; background-color:#CC0000; color:#fff; border:1px solid #000000; }.g-sliderObj { width:300px; height:25px; background-color:#fff; border:1px solid #006600; }.g-sliderBar { width:20px; background-color:#006600; border:1px solid #333; }.g-sliderBtn { width:20px; background-color:#006600; color:#fff; border:1px solid #000000; }.b-sliderObj { width:300px; height:25px; background-color:#fff; border:1px solid #003399; }.b-sliderBar { width:20px; background-color:#003399; border:1px solid #333; }.b-sliderBtn { width:20px; background-color:#003399; color:#fff; border:1px solid #000000; }</style></HEAD><BODY><p><div id="s1"></div><p><div id="d1">r</div><p><div id="s2"></div><p><div id="d2">g</div><p><div id="s3"></div><p><div id="d3">b</div><p><div id="color" class="sliderObj"></div><SCRIPT LANGUAGE="JavaScript"><!--/*===============================================================//// Module : never SliderBar// Script by : never-online, blueDestiny// Updated : 2006-5-12// Copyright : Miracle technology all reserved// Website : http://www.never-online.net// Email : blueDestiny@126.com// Blog : http://blog.csdn.net/blueDestiny// Comment : if you using never SliderBar please hold// these copyrights.//// compatible : only for IE// History : none//================================================================*/function neverSliderBar(id,callback) { with(this) {this.$ = document.getElementById || document.all;this.sldID = id;this.sldObj = null;this.instance = this;this.barStyle = "sliderBar";this.objStyle = "sliderObj";this.btnStyle = "sliderBtn";this.sldBar = null;this.sldBtnL = null;this.sldBtnR = null;this.sldPoint = null;this.sldMoved = false;this.sldClicked = false;this.callback = callback;this.sldObjOffset = null;this.sldBarOffset = null;this.callbackArg = Array.prototype.slice.call(arguments,2);this.sldMax = 100;this.sldIncrement = 5;this.sldPoint = 0;//instance.init.call(this,id);}};neverSliderBar.prototype.setObjStyle=function(classname) { with(this){objStyle=classname;}};neverSliderBar.prototype.setMaxPoint=function(maxpoint) { with(this){sldMax=maxpoint;}};neverSliderBar.prototype.setBtnStyle=function(classname) { with(this){btnStyle=classname;}};neverSliderBar.prototype.setBarStyle=function(classname) { with(this){barStyle=classname;}};neverSliderBar.prototype.setStyle=function() { with(this){if (arguments[0]) barStyle=arguments[0];if (arguments[1]) btnStyle=arguments[1];if (arguments[2]) objStyle=arguments[2];}};neverSliderBar.prototype.setIncrement=function(increment) { with(this){if (isNaN(parseInt(increment))) return;sldIncrement = parseInt(increment);}};neverSliderBar.prototype.getSldPoint=function() { with(this){sldBarOffset = Offset(sldBar);sldObjOffset = Offset(sldObj);var sldObjwidth = sldObjOffset.w-sldBarOffset.w;var sldBarwidth = sldBarOffset.l-sldObjOffset.l;var sldLocation = parseInt(sldBarwidth/sldObjwidth*sldMax);return sldLocation;}};neverSliderBar.prototype.setSldPoint=function(point) { with(this){if (isNaN(parseInt(point))) return;if (point<0) point=0;if (point>sldMax) point=sldMax;var sldObjwidth = sldObjOffset.w-sldBarOffset.w;var sldBarwidth = sldBarOffset.l-sldObjOffset.l;sldPoint = parseInt(point);var p = parseInt(sldPoint*sldObjwidth/sldMax)+sldObjOffset.l+1;sldBar.style.left = p;instance.getSldPoint();}};neverSliderBar.prototype.init=function() { with(this){if ($(sldID + '__BtnL') && $(sldID + '__BtnR') && $(sldID + '__Bar')) {sldBtnL = $(sldID + '__BtnL');sldBar = $(sldID + '__Bar');sldBtnR = $(sldID + '__BtnR');}else {sldBtnL = document.createElement("BUTTON");sldBtnL.id = sldID + '__BtnL';sldBar = document.createElement("DIV");sldBar.id = sldID + '__Bar';sldBtnR = document.createElement("BUTTON");sldBtnR.id = sldID + '__BtnR';document.body.appendChild(sldBtnL);document.body.appendChild(sldBar);document.body.appendChild(sldBtnR);}//-------------------------------------------------------------------sldObj = $(sldID);sldObj.className = objStyle;sldBarOffset = Offset(sldBar);sldObjOffset = Offset(sldObj);//-------------------------------------------------------------------sldBtnL.value = "<<";sldBtnL.className = btnStyle;sldBtnL.style.position = "absolute";//-------------------------------------------------------------------sldBtnR.value = ">";sldBtnR.className = btnStyle;sldBtnR.style.position = "absolute";//-------------------------------------------------------------------sldBar.className = barStyle;sldBar.style.position = "absolute";sldBar.style.top = sldObjOffset.t;sldBar.style.height = sldObjOffset.h;sldBar.style.left = sldObjOffset.l;instance.fixed();//-------------------------------------------------------------------sldObj.onmousedown = function() {instance.handleObjBefore()};sldObj.onmouseup = function() {instance.handleObjAfter()};//-------------------------------------------------------------------sldBtnL.onmousedown = function() {instance.handleBtnClick('l')};sldBtnR.onmousedown = function() {instance.handleBtnClick('r')};sldBtnL.onfocus = function() {this.blur()};sldBtnR.onfocus = function() {this.blur()};//-------------------------------------------------------------------sldBar.onmousedown = function() {instance.handleSldDragStart()};sldBar.onmousemove = function() {instance.handleSldDrag()};sldBar.onmouseup = function() {instance.handleSldDragEnd()};}};neverSliderBar.prototype.fixed=function() { with(this){sldBarOffset = Offset(sldBar);sldObjOffset = Offset(sldObj);var sldBtnLOffset = Offset(sldBtnL);sldBtnL.style.left = sldObjOffset.l-sldBtnLOffset.w;sldBtnL.style.top = sldObjOffset.t;sldBtnL.style.height = sldObjOffset.h;//-------------------------------------------------------------------sldBtnR.style.left = sldObjOffset.l+sldObjOffset.w;sldBtnR.style.top = sldObjOffset.t;sldBtnR.style.height = sldObjOffset.h;//-------------------------------------------------------------------sldBar.style.top = sldObjOffset.t;sldBar.style.height = sldObjOffset.h;//-------------------------------------------------------------------var p = sldBarOffset.l;if (p < sldObjOffset.l) sldBar.style.left=sldObjOffset.l;var w = sldObjOffset.l+sldObjOffset.w-sldBarOffset.w;if (p > w) sldBar.style.left = w;window.setTimeout(function(){instance.fixed()},10)}};neverSliderBar.prototype.applyArg=function() { with(this){if (typeof(callback)=='string') callback=eval(callback);if (typeof(callback)=='function') {var callbackArguments = [];for(var i=0; i<callbackArg.length; i++)callbackArguments[i] = callbackArg[i];callbackArguments.push(instance.getSldPoint());callback.apply(this,callbackArguments);} else { return; }}};neverSliderBar.prototype.handleObjBefore=function() { with(this){}};neverSliderBar.prototype.handleObjAfter=function() { with(this){}};neverSliderBar.prototype.handleBtnClick=function(direction) { with(this){direction = direction.toLowerCase();sldPoint=instance.getSldPoint();if(direction == 'l') {instance.setSldPoint(this.sldPoint-sldIncrement);}else if (direction=='r') {instance.setSldPoint(this.sldPoint+sldIncrement);}else {return alert('not valid argument ' +direction);}instance.applyArg();instance.getSldPoint();}};neverSliderBar.prototype.handleSldDragStart=function() { with(this){sldBar.setCapture();sldMoved = true;sldBar.onlosecapture = function(){sldMoved=false;};sldPoint = event.clientX-sldBarOffset.l;}};neverSliderBar.prototype.handleSldDrag=function() { with(this){if(!sldMoved) return;var p = event.clientX-sldPoint;if (p <= sldObjOffset.l) {sldBar.style.left = sldObjOffset.l;}else if (p >= (sldObjOffset.l+sldObjOffset.w-sldBarOffset.w)) {sldBar.style.left = sldObjOffset.l+sldObjOffset.w-sldBarOffset.w;}else sldBar.style.left = p;instance.applyArg();instance.getSldPoint();}};neverSliderBar.prototype.handleSldDragEnd=function() { with(this){sldBar.releaseCapture();sldMoved=false;}};function Offset(e) {var t = e.offsetTop;var l = e.offsetLeft;var w = e.offsetWidth;var h = e.offsetHeight;while(e=e.offsetParent) {t+=e.offsetTop;l+=e.offsetLeft;}return { t:t, l:l, w:w, h:h }}var r=new neverSliderBar("s1",callback,' <b>neverSliderBar</b> ');r.sldMax=255;r.setBtnStyle("r-sliderBtn");r.setBarStyle("r-sliderBar");r.setObjStyle("r-sliderObj");r.init();r.setSldPoint(100);var g=new neverSliderBar("s2",callback,' <b>neverSliderBar</b> ');g.sldMax=255;g.setStyle("g-sliderBar","g-sliderBtn","g-sliderObj");g.init();g.setSldPoint(150);var b=new neverSliderBar("s3",callback,' <b>neverSliderBar</b> ');b.sldMax=255;b.setBtnStyle("b-sliderBtn");b.setBarStyle("b-sliderBar");b.setObjStyle("b-sliderObj");b.setIncrement(10);b.init();b.setSldPoint("200");callback(' <b>neverSliderBar</b> ');function callback(s) {var $=document.getElementById;var color_r=r.getSldPoint();var color_g=g.getSldPoint();var color_b=b.getSldPoint();$("color").style.backgroundColor="rgb(" +color_r+ "," +color_g+ "," +color_b+ ")";$("d1").innerHTML=s+color_r;$("d2").innerHTML=s+color_g;$("d3").innerHTML=s+color_b;}//--></SCRIPT><p>power by never-online, blueDestiny, http://www.never-online.net</p></BODY></HTML>

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