`

fixed仿淘宝工具栏效果（两种）

 
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看到有人正在找这个效果，而我正好也在研究，所以发上来，共享一下！

现在我们来分析下这个“fixed仿淘宝工具栏效果”效果具体要实现哪些功能:

1、原本我一直认为，只有在滚动一屏的时候，工具栏才会固定在浏览器顶端。可是当我仔细研究这个效果的时候，我才发现不是我认识的那样。其实是当浏览器滚动条的高度>工具栏在目前页面的位置时，工具栏才会固定在页面的顶部。

2、综上所述呢，我们首先要获取工具栏在页面xy的坐标，本次效果工具栏一致放在页面左边，所以不在获取x坐标。

3、监听页面滚动条，当滚动条的高度>工具栏在页面的y值。在此处我用了添加触发事件（scroll）来处理，但是此处给我带来了麻烦，下面再说！

4、大于y值了，就变幻最外层div的class名称，并且右下角的关闭按钮出现

5、关闭按钮后工具栏就不可以在固定在浏览器的顶端，也就是不可以在触发scroll事件，必须清除scroll事件。添加某一事件后在清除这个事件，必须保持是处理的同一方法！

6、后面的下拉框，价格的搜索都比较好做，可能在技巧上要处理下移上移出。

 

 

再来一个效果。

 

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<head> 
<title>  </title> 
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<style type="text/css"> 
body,html{margin:0;padding:0;background:url(/100100759.png) fixed}
#float{background:url(http://www.css88.com/wp-content/uploads/2009/10/tb2.png) no-repeat -12px -37px;width:744px;height:34px;border:1px solid #C0DBF8;position:absolute;top:0}
#box{position:relative;width:744px;margin:0px auto;}
</style> 
</head> 
<body>

<div style="height:100px;background:#fff"></div> 
<div id="box"><div id="float" ></div></div> 
<div style="height:1000px;background:#000"></div> 
</body> 
<script type="text/javascript">
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if(IE6)
    IO.style.cssText="position:absolute;top:expression(this.fix?(document"+
        ".documentElement.scrollTop-(this.javascript||"+H+")):0)";
window.onscroll=function (){
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try{document.execCommand("BackgroundImageCache",false,true)}catch(e){};
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<!DOCTYPE html>
<html lang="zh-cn">
<head>
<meta charset="utf-8" />
<title>fixed仿淘宝工具栏效果</title>
<meta name="author" content="走起来" />
<meta name="copyright" content="www.css3train.com,www.html5sum.com" />
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</head>
<body style="height:2000px;">
<!-- html begin -->
<br><br><br><br><br><br><br><br><br><br><br><br><br><br><br>
<div class="filter-tools-box" id="topfixed">
  <ul class="filter-tools">
    <li class="mode thumb-mode">
      <a title="列表展示" href="javascript:void(0);" class="select-item">切换到列表</a>
    </li>
    <li id="J_FilterOrder" class="order ">
      <span class="label">排序</span>
      <span class="select-item j_dd_trigger">默认排序</span>
      <ul class="item-list j_dd_panel">
        <li class="by-price-asc ">
          <a href="javascript:void(0);">价格从低到高</a>
        </li>
        <li class="by-price-desc ">
          <a href="javascript:void(0);">价格从高到低</a>
        </li>
        <li class="by-credit-desc ">
          <a href="javascript:void(0);">信用从高到低</a>
        </li>
        <li class="by-sale-desc ">
          <a href="javascript:void(0);">成交量从高到低</a>
        </li>
        <li class="by-default selected">
          <a href="javascript:void(0);">默认排序</a>
        </li>
      </ul>
    </li>
    <li class="way ">
      <a href="javascript:void(0);" class="by-credit">信用</a>
      <a href="javascript:void(0);" class="by-price">价格</a>
    </li>
    <li class="region">
      <form action="javascript:void(0);" method="get" name="filterPriceForm" id="J_FilterPrice">
        <input type="text" name="filterPriceFrom" class="j_value">
        <span>-</span>
        <input type="text" name="filterPriceTo" class="j_value">
        <button type="submit" class="submit">确定</button>
      </form>
    </li>
    <li id="J_Seat" class="seat">
      <span class="select-item j_dd_trigger">所在地</span>
      <div class="item-list j_dd_panel">
        <form method="get" action="javascript:void(0);">
          <input type="hidden" name="cat" id="cat" value="1623">
          <input type="hidden" name="sort" id="sort" value="commend">
          <input type="hidden" name="isprepay" id="isprepay" value="1">
          <input type="hidden" name="user_type" id="user_type" value="0">
          <input type="hidden" name="viewIndex" id="viewIndex" value="1">
          <input type="hidden" name="as" id="as" value="0">
          <input type="hidden" name="yp4p_page" id="yp4p_page" value="0">
          <input type="hidden" name="commend" id="commend" value="all">
          <input type="hidden" name="atype" id="atype" value="b">
          <input type="hidden" name="style" id="style" value="grid">
          <input type="hidden" name="s" id="s" value="0">
          <input type="hidden" name="path" id="path" value="16-1623">
          <input type="hidden" name="rr" id="rr" value="1">
          <input type="hidden" name="olu" id="olu" value="yes">
          <input type="hidden" name="isnew" id="isnew" value="2">
          <input type="hidden" name="smc" id="smc" value="1">
          <input type="hidden" name="spm" value="a2106.m874.1000206.d10002">
          <input type="text" name="loc" autocomplete="off" class="text j_value">
          <button type="submit">确定</button>
        </form>
        <div class="para">
          <p class="all"><a href="#" data-value="" class="selected">所有地区</a></p>
          <p class="area">
            <a href="#" data-value="江苏,浙江,上海">江浙沪</a>
            <a href="#" data-value="广州,深圳,中山,珠海,佛山,东莞,惠州">珠三角</a>
            <a href="#" data-value="香港,澳门,台湾">港澳台</a>
            <a href="#" data-value="北京,天津">京津</a>
            <a href="#" data-value="北京">北京</a>
            <a href="#" data-value="上海">上海</a>
            <a href="#" data-value="广州">广州</a>
            <a href="#" data-value="深圳">深圳</a>
            <a href="#" data-value="美国,英国,法国,瑞士,澳洲,新西兰,加拿大,奥地利,韩国,日本,德国,意大利,西班牙,俄罗斯,泰国,印度,荷兰,新加坡,其它国家">海外</a>
          </p>
          <p class="city">
            <a href="#" data-value="杭州">杭州</a>
            <a href="#" data-value="温州">温州</a>
            <a href="#" data-value="宁波">宁波</a>
            <a href="#" data-value="南京">南京</a>
            <a href="#" data-value="苏州">苏州</a>
            <a href="#" data-value="济南">济南</a>
            <a href="#" data-value="青岛">青岛</a>
            <a href="#" data-value="大连">大连</a>
            <a href="#" data-value="无锡">无锡</a>
            <a href="#" data-value="合肥">合肥</a>
            <a href="#" data-value="天津">天津</a>
            <a href="#" data-value="长沙">长沙</a>
            <a href="#" data-value="武汉">武汉</a>
            <a href="#" data-value=" 郑州"> 郑州</a>
            <a href="#" data-value="石家庄">石家庄</a>
            <a href="#" data-value="成都">成都</a>
            <a href="#" data-value="重庆">重庆</a>
            <a href="#" data-value="西安">西安</a>
            <a href="#" data-value="昆明">昆明</a>
            <a href="#" data-value="南宁">南宁</a>
            <a href="#" data-value="福州">福州</a>
            <a href="#" data-value="厦门">厦门</a>
            <a href="#" data-value="南昌">南昌</a>
            <a href="#" data-value="东莞">东莞</a>
            <a href="#" data-value="沈阳">沈阳</a>
            <a href="#" data-value="长春">长春</a>
            <a href="#" data-value="哈尔滨">哈尔滨</a>
          </p>
          <p class="province">
            <a href="#" data-value="安徽">安徽</a>
            <a href="#" data-value="福建">福建</a>
            <a href="#" data-value="甘肃">甘肃</a>
            <a href="#" data-value="广东">广东</a>
            <a href="#" data-value="广西">广西</a>
            <a href="#" data-value="贵州">贵州</a>
            <a href="#" data-value="海南">海南</a>
            <a href="#" data-value="河北">河北</a>
            <a href="#" data-value="河南">河南</a>
            <a href="#" data-value="湖北">湖北</a>
            <a href="#" data-value="湖南">湖南</a>
            <a href="#" data-value="江苏 ">江苏 </a>
            <a href="#" data-value="黑龙江">黑龙江</a>
            <a href="#" data-value="江西">江西</a>
            <a href="#" data-value="吉林">吉林</a>
            <a href="#" data-value="辽宁">辽宁</a>
            <a href="#" data-value="内蒙古">内蒙古</a>
            <a href="#" data-value="宁夏">宁夏</a>
            <a href="#" data-value="青海">青海</a>
            <a href="#" data-value="山东">山东</a>
            <a href="#" data-value="山西">山西</a>
            <a href="#" data-value="陕西">陕西</a>
            <a href="#" data-value="四川">四川</a>
            <a href="#" data-value="西藏">西藏</a>
            <a href="#" data-value="新疆">新疆</a>
            <a href="#" data-value="云南">云南</a>
            <a href="#" data-value="浙江">浙江</a>
            <a href="#" data-value="香港">香港</a>
            <a href="#" data-value="澳门">澳门</a>
            <a href="#" data-value="台湾">台湾</a>
          </p>
        </div>
      </div>
    </li>
    <li class="way ">
      <a class="by-sale" href="javascript:void(0);">成交</a>
    </li>
    <li>
      <div class="filter-close-btn hidden" id="close_taobao">close</div>
    </li>
  </ul>
</div>
<input type="hidden" value="false" id="isShowSelectBox">
<!-- html end -->
<script type="text/javascript">
(function(){
  var BoxY=0;//工具栏在当前的位置
  var windowST=0;//获取滚动条
  var filter_close_btn = '';//关闭按钮
  ZHJ.FixedBox=function(id){
    BoxY=ZHJ.getXY(id).y;
  };
  /* 滚动条 */
  ZHJ.taobaoTop = function(id){
    filter_close_btn=ZHJ.getByClass(id,'filter-close-btn hidden')[0];
    windowST=(document.compatMode && document.compatMode!="CSS1Compat")? document.body.scrollTop:document.documentElement.scrollTop||window.pageYOffset;
    if(windowST>BoxY){
      id.className='filter-tools-box filter-follow';
      ZHJ.cssStyle(filter_close_btn,'display','block');
    }else{
      ZHJ.closeTaobao(id);
    }
  };
  /* 关闭工具栏 */
  ZHJ.closeTaobao = function(id){
    id.className='filter-tools-box';
    ZHJ.cssStyle(filter_close_btn,'display','none');
  };
  /* 为了添加和删除事件，所以要统一方法 */
  ZHJ.taobaoTopZ = function(){
    ZHJ.classes.doWhileExists('topfixed',ZHJ.taobaoTop);
  };
  /* 下拉框 */
  ZHJ.selectItem = function(id){
    var selectItem = ZHJ.getByClass(id,'select-item j_dd_trigger');//获取下拉框
    var listItem = ZHJ.getByClass(id,'item-list j_dd_panel');//获取下拉框
    for(var i=0;i<selectItem.length;i++){
      (function(i){
        ZHJ.util.addEvent(selectItem[i],'mouseover',function(){ZHJ.selectItemHidden(listItem[i],'display','block')});
        ZHJ.util.addEvent(selectItem[i],'mouseout',function(){ZHJ.selectItemHidden(listItem[i],'display','none')});
        ZHJ.util.addEvent(listItem[i],'mouseover',function(){ZHJ.selectItemHidden(listItem[i],'display','block')});
        ZHJ.util.addEvent(listItem[i],'mouseout',function(){ZHJ.selectItemHidden(listItem[i],'display','none')});
      })(i);
    }
  };
  /* 价格区间搜索 */
  ZHJ.jValue = function(id){
    var jValue = ZHJ.getByClass(id,'j_value');//获取价格
    for(var i=0;i<jValue.length;i++){
      (function(i){
        ZHJ.util.addEvent(jValue[i],'click',function(){
          jValue[i].parentNode.className='expand';
        });
      })(i);
    }
  };
  ZHJ.selectItemHidden = function(obj,attr,value){
    ZHJ.cssStyle(obj,attr,value);
  };
  ZHJ.classes.doWhileExists('topfixed',ZHJ.FixedBox);//获取工具栏在页面的位置，并且判断id存不存在
  ZHJ.util.addEvent(window,'scroll',ZHJ.taobaoTopZ);//添加事件，获取滚动条的高度
  ZHJ.util.addEvent(window,'click',function(){//关闭按钮，删除事件
    ZHJ.classes.doWhileExists('topfixed',ZHJ.closeTaobao);
    ZHJ.util.delEvent(window,'scroll',ZHJ.taobaoTopZ);//删除事件
  });
  ZHJ.classes.doWhileExists('topfixed',ZHJ.selectItem);//下拉框
  ZHJ.classes.doWhileExists('topfixed',ZHJ.jValue);//价格搜索区间
})();
</script>
</body>
</html>
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| 做交互应该知道的视觉几件事
评论
1 楼 husw 2012-12-22  
不错，感谢分享！
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