图片滑动效果(转)
var $ = function(id) { return "string" == typeof id ? document.getElementById(id) : id; }; function Event(e) { var oEvent = document.all ? window.event : e; if (document.all) { if (oEvent.type == "mouseout") { oEvent.relatedTarget = oEvent.toElement; } else if (oEvent.type == "mouseover") { oEvent.relatedTarget = oEvent.fromElement; } } return oEvent; } function addEventHandler(oTarget, sEventType, fnHandler) { if (oTarget.addEventListener) { oTarget.addEventListener(sEventType, fnHandler, false); } else if (oTarget.attachEvent) { oTarget.attachEvent("on" + sEventType, fnHandler); } else { oTarget["on" + sEventType] = fnHandler; } }; var Class = { create: function() { return function() { this.initialize.apply(this, arguments); } } } Object.extend = function(destination, source) { for (var property in source) { destination[property] = source[property]; } return destination; } var GlideView = Class.create(); GlideView.prototype = { //容器对象 容器宽度 展示标签 展示宽度 initialize: function(obj, iWidth, sTag, iMaxWidth, options) { var oContainer = $(obj), oThis = this, len = 0; this.SetOptions(options); this.Step = Math.abs(this.options.Step); this.Time = Math.abs(this.options.Time); this.Showtext = false; //是否显示说明文本 this._list = oContainer.getElementsByTagName(sTag); len = this._list.length; this._count = len; this._width = parseInt(iWidth / len); this._width_max = parseInt(iMaxWidth); this._width_min = parseInt((iWidth - this._width_max) / (len - 1)); this._timer = null; //有说明文本 if (this.options.TextTag && this.options.TextHeight > 0) { this.Showtext = true; this._text = oContainer.getElementsByTagName(this.options.TextTag); this._height_text = -parseInt(this.options.TextHeight); } this.Each(function(oList, oText, i) { oList._target = this._width * i; //自定义一个属性放目标left oList.style.left = oList._target + "px"; oList.style.position = "absolute"; addEventHandler(oList, "mouseover", function() { oThis.Set.call(oThis, i); }); //有说明文本 if (oText) { oText._target = this._height_text; //自定义一个属性放目标bottom oText.style.bottom = oText._target + "px"; oText.style.position = "absolute"; } }) //容器样式设置 oContainer.style.width = iWidth + "px"; oContainer.style.overflow = "hidden"; oContainer.style.position = "relative"; //移出容器时返回默认状态 addEventHandler(oContainer, "mouseout", function(e) { //变通防止执行oList的mouseout var o = Event(e).relatedTarget; if (oContainer.contains ? !oContainer.contains(o) : oContainer != o && !(oContainer.compareDocumentPosition(o) & 16)) oThis.Set.call(oThis, -1); }) }, //设置默认属性 SetOptions: function(options) { this.options = {//默认值 Step: 20, //滑动变化率 Time: 20, //滑动延时 TextTag: "", //说明容器tag TextHeight: 0//说明容器高度 }; Object.extend(this.options, options || {}); }, //相关设置 Set: function(index) { if (index < 0) { //鼠标移出容器返回默认状态 this.Each(function(oList, oText, i) { oList._target = this._width * i; if (oText) { oText._target = this._height_text; } }) } else { //鼠标移到某个滑动对象上 this.Each(function(oList, oText, i) { oList._target = (i <= index) ? this._width_min * i : this._width_min * (i - 1) + this._width_max; if (oText) { oText._target = (i == index) ? 0 : this._height_text; } }) } this.Move(); }, //移动 Move: function() { clearTimeout(this._timer); var bFinish = true; //是否全部到达目标地址 this.Each(function(oList, oText, i) { var iNow = parseInt(oList.style.left), iStep = this.GetStep(oList._target, iNow); if (iStep != 0) { bFinish = false; oList.style.left = (iNow + iStep) + "px"; } //有说明文本 if (oText) { iNow = parseInt(oText.style.bottom), iStep = this.GetStep(oText._target, iNow); if (iStep != 0) { bFinish = false; oText.style.bottom = (iNow + iStep) + "px"; } } }) //未到达目标继续移动 if (!bFinish) { var oThis = this; this._timer = setTimeout(function() { oThis.Move(); }, this.Time); } }, //获取步长 GetStep: function(iTarget, iNow) { var iStep = (iTarget - iNow) / this.Step; if (iStep == 0) return 0; if (Math.abs(iStep) < 1) return (iStep > 0 ? 1 : -1); return iStep; }, Each: function(fun) { for (var i = 0; i < this._count; i++) fun.call(this, this._list[i], (this.Showtext ? this._text[i] : null), i); } }; window.onload = function() { new GlideView("idGlideView", 800, "div", 500, { TextTag: "a", TextHeight: 50 }); }
#idGlideView { height: 100px; margin: 100px auto; } #idGlideView div { width: 500px; height: 100px; } #idGlideView div a { width: 500px; height: 50px; filter: alpha(opacity=50); opacity: 0.5; background: #000; color: #fff; text-decoration: none; }
<div id="idGlideView"> <div style="background-color: #006699;"> <a href="/">1111111</a> </div> <div style="background-color: #FF9933;"> <a href="/">2222222</a> </div> <div style="background-color: #9999FF;"> <a href="/">3333333</a> </div> <div style="background-color: #006699;"> <a href="/">1111111</a> </div> </div>
posted on 2010-04-27 11:37 Internet 350 阅读(193) 评论(0) 编辑 收藏 举报