2010-12-02 95 views
2

您好我有一個基本的頁面設置原型浮動籃右頁中的列。位置固定問題

當籃子在用戶滾動時碰到頁面的頂部時會發生什麼情況,它會應用一個將其位置固定到屏幕頂部的類,直到用戶再次滾動到屏幕頂部爲止。

這工作得很好除了一個問題:

當調整瀏覽器窗口,使視比網頁和水平滾動向右的寬度 - 如果再向下滾動頁面籃筐修復其位置,使其與頁面的右側重疊!

我使用的代碼如下,將apprreciate任何意見。提前致謝!

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 
<html> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> 
    <title>Untitled Document</title> 

<style type="text/css"> 
    #container{width: 900px; margin-left:auto; margin-right:auto;} 
    #header{height:40px; background-color:blue; } 
    #column1{float:left; width:600px; background-color:green; height:900px;} 
    #column2{float:left; width:300px; background-color:red; height:900px; position:relative;} 
    #basket{background-color:white; margin-left:10px; margin-right:10px; width:280px;} 
    .fixed{position:fixed; top:0;} 
    /*#scrollWrapper{overflow-y:scroll; overrflow-x:hidden; height:50px;}*/ 
    #scrollWrapper{overflow:hidden;} 
</style> 
<script src="http://yui.yahooapis.com/3.2.0/build/yui/yui-min.js" type="text/javascript"></script> 
<script type="text/javascript"> 
    YUI().use('node', function(Y){ 
    var basket = Y.one('#basket'); 
    var basketY = basket.getY(); 
    var overflow = Y.one('#scrollWrapper'); 

    function constrain() 
    { 
    var basketHeight = basket.getComputedStyle("height").split("px")[0]; 
    var windowHeight = Y.one("body").get("winHeight"); 
    if (basketHeight > windowHeight) { 
    var diff = basketHeight - windowHeight; 
    var scrollHeight = Y.one("#scrollWrapper").getComputedStyle("height").split("px")[0]; 
    var newHeight = scrollHeight - diff; 

    overflow.setStyle("height", newHeight+"px"); 

    } 
    } 

    Y.on('scroll', function(e){ 
    var windowY = Y.DOM.docScrollY(); 
    //if(windowY > basketY && !basket.hasClass("fixed")) 
    if(windowY > basketY) 
    { 
     basket.addClass("fixed"); 
     var height = Y.one("body").get("winHeight"); 
     //basket.setStyle("height", height+"px"); 
     constrain(); 

    } 
    else if(windowY < basketY && basket.hasClass("fixed")){ 

     basket.removeClass("fixed"); 
     alert("removing"); 
    } 

    }); 
    }); 





    /*window.onload = function(){ 
    var basket = document.getElementById("basket"); 
    alert(findPos(basket)); 
    } 


    function findPos(obj) 
    { 
    var curTop = 0; 
    if(obj.offsetParent){ 

    do { 
    curTop += obj.offsetTop; 
    } 
    while (obj.offsetParent); 
    } 
    return curTop; 
    }*/ 

</script> 
</head> 

<body> 
    <div id="container"> 
    <div id="header"> 

    Header 
    </div> 
    <div id="column1"> 

    </div> 
    <div id="column2"> 
    <div id="basket" class=""> 
    hkjhkjkjhkjhkj 
    klklkl;kl;kl 
    <p>jhjkhkjhkj</p> 
    <div id="scrollWrapper"> 
     <ul> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     <li>Item1</li> 
     </ul> 
    </div> 
    </div> 
    </div> 

    </div> 

</body> 
</html> 
+0

只是爲了澄清的人,可能有更多的信息。這個問題歸結爲能夠模擬「固定的」垂直定位,但是能夠模擬元件的「相對」水平定位。 – mjhm 2010-12-02 20:22:05

回答

2

這是否做的伎倆爲您提供:

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01//EN" "http://www.w3.org/TR/html4/strict.dtd"> 
<html> 
<head> 
    <meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1"> 
    <title>Untitled Document</title> 

<style type="text/css"> 
    #container{width: 900px; margin-left:auto; margin-right:auto;} 
    #header{height:40px; background-color:blue; } 
    #column1{float:left; width:600px; background-color:green; height:900px;} 
    #column2{float:left; width:300px; background-color:red; height:900px; position:relative;} 
    #basket{background-color:white; margin-top:10px; margin-left:10px; margin-right:10px; width:280px;} 
    .fixed{position:fixed; top:0; left:0; width:100%} 
    /*#scrollWrapper{overflow-y:scroll; overrflow-x:hidden; height:50px;}*/ 
    #scrollWrapper{overflow:hidden;} 
</style> 
<script src="http://yui.yahooapis.com/3.2.0/build/yui/yui-min.js" type="text/javascript"></script> 
<script type="text/javascript"> 
    YUI().use('node', function(Y){ 
    var basket = Y.one('#basket'); 
    var basketY = basket.getY(); 
    var basketCase = Y.one('#basketCase'); 
    var basketHolder = Y.one('#basketHolder'); 
    var overflow = Y.one('#scrollWrapper'); 

    function constrain() 
    { 
    var basketHeight = basket.getComputedStyle("height").split("px")[0]; 
    var windowHeight = Y.one("body").get("winHeight"); 
    if (basketHeight > windowHeight) { 
    var diff = basketHeight - windowHeight; 
    var scrollHeight = Y.one("#scrollWrapper").getComputedStyle("height").split("px")[0]; 
    var newHeight = scrollHeight - diff; 

    overflow.setStyle("height", newHeight+"px"); 

    } 
    } 

    Y.on('scroll', fixBasket); 
    Y.on('resize', fixBasket); 

    function fixBasket(e){ 
    var windowY = Y.DOM.docScrollY(); 
    //if(windowY > basketY && !basket.hasClass("fixed")) 
    if(windowY > basketY) 
    { 
     basketCase.addClass("fixed"); 
     basket.setStyle("marginLeft", 610 - document.body.scrollLeft + "px"); 
     basketHolder.setStyle("width", "900px"); 
     var height = Y.one("body").get("winHeight"); 
     //basket.setStyle("height", height+"px"); 
     constrain(); 

    } 
    else if(windowY < basketY && basketCase.hasClass("fixed")){ 

     basketCase.removeClass("fixed"); 
     basket.setStyle("marginLeft", "10px"); 
     basketHolder.setStyle("width", "auto"); 
     //alert("removing"); 
    } 

    } 

    }); 


    /*window.onload = function(){ 
    var basket = document.getElementById("basket"); 
    alert(findPos(basket)); 
    } 


    function findPos(obj) 
    { 
    var curTop = 0; 
    if(obj.offsetParent){ 

    do { 
    curTop += obj.offsetTop; 
    } 
    while (obj.offsetParent); 
    } 
    return curTop; 
    }*/ 

</script> 
</head> 

<body style="margin-left: 0; margin-right: 0; padding-left: 0; padding-right: 0;"> 
    <div id="container"> 
    <div id="header"> 

    Header 
    </div> 
    <div id="column1"> 

    </div> 
    <div id="column2"> 
    <div id="basketCase"> 
     <div id="basketHolder" style="margin: auto;"> 
      <div id="basket" class=""> 
      hkjhkjkjhkjhkj 
      klklkl;kl;kl 
      <p>jhjkhkjhkj</p> 
      <div id="scrollWrapper"> 
       <ul> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       <li>Item1</li> 
       </ul> 
      </div> 
      </div> 
     </div> 
    </div> 
    </div> 

    </div> 

</body> 
</html> 
+1

是的,這個效果很好,剛剛用YUI3函數的「document.body.scrollLeft」代替了這個代碼:Y.DOM.docScrollX()來獲得x滾動。 – user502014 2010-12-03 09:53:49