javascript水平方向手风琴焦点图

  javascript水平方向手风琴焦点图,效果如下javascript水平方向手风琴焦点图

源代码如下

<!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>
<title>javascript水平方向手风琴焦点图</title>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<script type="text/javascript">
var $$ = function (id) {
    return "string" == typeof id ? document.getElementById(id) : id;
};
function Event(e){
	var oEvent = document.all ? window.event : e;
	if (document.all) {
		if(oEvent.type == "mouseout") {
			oEvent.relatedTarget = oEvent.toElement;
		}else if(oEvent.type == "mouseover") {
			oEvent.relatedTarget = oEvent.fromElement;
		}
	}
	return oEvent;
}
function addEventHandler(oTarget, sEventType, fnHandler) {
	if (oTarget.addEventListener) {
		oTarget.addEventListener(sEventType, fnHandler, false);
	} else if (oTarget.attachEvent) {
		oTarget.attachEvent("on" + sEventType, fnHandler);
	} else {
		oTarget["on" + sEventType] = fnHandler;
	}
};
var Class = {
  create: function() {
    return function() {
      this.initialize.apply(this, arguments);
    }
  }
}
Object.extend = function(destination, source) {
    for (var property in source) {
        destination[property] = source[property];
    }
    return destination;
}
var GlideView = Class.create();
GlideView.prototype = {
    //容器对象 容器宽度 展示标签 展示宽度
    initialize: function (obj, iWidth, sTag, iMaxWidth, options) {
        var oContainer = $$(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
        if (this.options.huifuclose == false) {
            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
            huifuclose: true, //是否恢复状态
            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.className = i == index ? 'focus' : ''; ////////
                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);
    }
};
</script>
<style type="text/css">
#idGlideView { height:230px; margin:10px  auto;overflow:hidden;}
#idGlideView div {width:500px;height:230px; background-color:#FFF}
#idGlideView div img{filter:alpha(opacity=50); -moz-opacity:0.5; -khtml-opacity: 0.5; opacity: 0.5;}
#idGlideView div.focus img{filter:alpha(opacity=100); -moz-opacity:1; -khtml-opacity: 1; opacity: 1;}
#idGlideView div p {
	width:500px;
	height:50px;
	filter: alpha(opacity=50);
	opacity: 0.5;
	background:#000;
	color:#fff;
	text-decoration:none; padding:5px 10px; font-size:14px; font-family:"微软雅黑";margin:0px
}
</style>
</head>
<body>
<div id="idGlideView">
<div><a href=""><img src="http://www.0917cc.com/images/add/p1.jpg" /></a><p>咨询电话:&nbsp;&nbsp;&nbsp;&nbsp;地址:</p></div>
<div><img src="http://www.0917cc.com/images/add/p2.jpg" /><p>咨询电话:&nbsp;&nbsp;&nbsp;&nbsp;地址:</p></div>
<div><img src="http://www.0917cc.com/images/add/p3.jpg" /><p>咨询电话:&nbsp;&nbsp;&nbsp;&nbsp;地址:</p></div>
<div><img src="http://www.0917cc.com/images/add/p4.jpg" /><p>咨询电话:&nbsp;&nbsp;&nbsp;&nbsp;地址:</p></div>
<div><img src="http://www.0917cc.com/images/add/p5.jpg" /><p>咨询电话:&nbsp;&nbsp;&nbsp;&nbsp;地址:</p></div>
<div><img src="http://www.0917cc.com/images/add/p6.jpg" /><p>咨询电话:&nbsp;&nbsp;&nbsp;&nbsp;地址:</p></div>
</div>
<script type="text/javascript">
    window.onload = function () {
        var gv = new GlideView("idGlideView", 725, "div", 350, { TextTag: "p", TextHeight: 50 });
        gv.Set(2);
        gv.Showtext = true;
    }
</script>
</body>
</html>

 

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