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JavaScript实现图片DIV竖向滑动的方法
作者：佚名 责任编辑：admin 更新时间：2022-06-22
JavaScript实现图片DIV竖向滑动的方法
这篇文章主要介绍了JavaScript实现图片DIV竖向滑动的方法,涉及javascript操作div层的相关技巧,需要的朋友可以参考下
本文实例讲述了JavaScript实现图片DIV竖向滑动的方法。分享给大家供大家参考。具体实现方法如下：
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 <!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=gb2312" /> <title>图片滑动展示效果</title> <script type="text/javascript"> var $$ = function (id) { return "string" == typeof id ? document.getElementById(id) : id; }; function Event(e){ var oEvent = document.all ? window.event : e; if (document.all) { if(oEvent.type == "mouseout") { oEvent.relatedTarget = oEvent.toElement; }else if(oEvent.type == "mouseover") { oEvent.relatedTarget = oEvent.fromElement; } } return oEvent; } function addEventHandler(oTarget, sEventType, fnHandler) { if (oTarget.addEventListener) { oTarget.addEventListener(sEventType, fnHandler, false); } else if (oTarget.attachEvent) { oTarget.attachEvent("on" + sEventType, fnHandler); } else { oTarget["on" + sEventType] = fnHandler; } }; var Class = { create: function() { return function() { this.initialize.apply(this, arguments); } } } Object.extend = function(destination, source) { for (var property in source) { destination[property] = source[property]; } return destination; } var GlideView = Class.create(); GlideView.prototype = { //容器对象 容器宽度 展示标签 展示宽度 initialize: function(obj, iHeight, sTag, iMaxHeight, options) { var oContainer = $$(obj), oThis=this, len = 0; this.SetOptions(options); this.Step = Math.abs(this.options.Step); this.Time = Math.abs(this.options.Time); this._list = oContainer.getElementsByTagName(sTag); len = this._list.length; this._count = len; this._height = parseInt(iHeight / len); this._height_max = parseInt(iMaxHeight); this._height_min = parseInt((iHeight - this._height_max) / (len - 1)); this._timer = null; this.Each(function(oList, oText, i){ oList._target = this._height * i;//自定义一个属性放目标left oList.style.top = oList._target + "px"; oList.style.position = "absolute"; addEventHandler(oList, "mouseover", function(){ oThis.Set.call(oThis, i); }); }) //容器样式设置 oContainer.style.height = iHeight + "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:3,//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._height * 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._height_min * i : this._height_min * (i - 1) + this._height_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.top), iStep = this.GetStep(oList._target, iNow); if (iStep != 0) { bFinish = false; oList.style.top = (iNow + iStep) + "px"; } }) //未到达目标继续移动 if (!bFinish) { var oT- 上一个程序编程： javascript原始值和对象引用实例分析
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