【问题标题】:Open popup at clicked position在点击位置打开弹窗
【发布时间】:2012-05-08 05:13:06
【问题描述】:

嗨,

我做了一个弹出窗口,默认情况下隐藏并在窗口上触发点击时打开。必须在触发事件的任何地方显示弹出窗口。但是有一些限制:

  1. 弹出窗口必须显示在当前可见窗口。意思是,如果我点击了窗口的最右侧,那么弹出窗口必须显示在点击位置的右侧以避免滚动。

    李>
  2. 如果窗口有滚动,无论是否滚动,它都应显示在窗口的可见部分。

在我目前的代码中一切正常,除非窗口有滚动。 如果向下滚动并单击窗口中间,则弹出窗口显示在窗口外当前显示区域......................................

<!DOCTYPE HTML PUBLIC>
<html>
 <head>
  <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.js"></script>
  <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"></script>
 <style>
   div{
     border:1px solid;
     background:#ff9999;
     width:500px;
     height:500px;
     display:none;
     position:absolute;
   }
 </style>
  <script>
   var mouseX,mouseY,windowWidth,windowHeight;
   var  popupLeft,popupTop;
 $(document).ready(function(){

   $(document).mousemove(function(e){
           mouseX = e.pageX;
           mouseY = e.pageY;
           //To Get the relative position
           if( this.offsetLeft !=undefined)
             mouseX = e.pageX - this.offsetLeft;
           if( this.offsetTop != undefined)
             mouseY = e.pageY; - this.offsetTop;

           if(mouseX < 0)
                mouseX =0;
           if(mouseY < 0)
               mouseY = 0;

           windowWidth  = $(window).width();
           windowHeight = $(window).height();
   });

     $('html').click(function(){
       $('div').show();
      var popupWidth  = $('div').outerWidth();
      var popupHeight =  $('div').outerHeight();

      if(mouseX+popupWidth > windowWidth)
        popupLeft = mouseX-popupWidth;
      else
       popupLeft = mouseX;

      if(mouseY+popupHeight > windowHeight)
        popupTop = mouseY-popupHeight;
      else
        popupTop = mouseY; 
      if(popupLeft < 0)
          popupLeft = 0;
      if(popupTop < 0)
          popupTop = 0;

      $('div').offset({top:popupTop,left:popupLeft});
     });
 });
  </script>
 </head>

 <body>
        <br/><br/><br/>  <br/><br/><br/><br/> <br/><br/> <br/>   <br/>   <br/>   <br/>   <br/>   <br/> 
        <br/><br/> <br/> <br/> <br/>    <br/><br/><br/> <br/><br/>  <br/>   <br/><br/><br/><br/><br/><br/>
        <br/><br/><br/><br/><br/><br/><br/><br/>    

        <div>
         s dflasld fsadf
         sdfas dfsadf
        </div>

</body>

</html>

你能检查一下吗.......

【问题讨论】:

    标签: javascript jquery html popup mouse-position


    【解决方案1】:

    也许您可以在初始化时加载 windowW/H 并退出您的函数。

    概念是使用mouseY-scrolled high,因为mouseY和body有关,所以使用这个:

     $(document).ready(function(){
    
         $('html').click(function(e){
          mouseX=e.pageX;
          mouseY=e.pageY;
          var bodyTop = document.documentElement.scrollTop + document.body.scrollTop;
          ..
          //window.outerWidth is not working in IE
          var windowWidth  = $(window).outerWidth();
          var windowHeight = $(window).outerHeight();
          ..
          if(mouseY-bodyTop+popupHeight > windowHeight)
            ...
            ...
          //set the position first. remove the position attr in css   
          $('div').css({position:"absolute",top:popupTop,left:popupLeft});
          $('div').show();
         });
     });
    

    【讨论】:

    • 你在 IE9 中检查了吗?...K,你可以添加更多 BR 标签来滚动...请检查它添加一些 br 标签。
    • 问题仍然存在。当我向下滚动并单击向下 300px 到窗口顶部时,弹出顶部的某些顶部隐藏在滚动后面。这实际上是应该避免的。
    • 它现在可以工作了。跳跃的原因是你先显示 div。另外,offset 在 IE 中似乎不起作用,请改用 css。 window.outerWidth 也不能在 IE 中工作
    • 哦,移除 mousemove 事件
    • 你需要从你的原始文件中删除一些东西,确保变量是唯一的。
    【解决方案2】:

    最后,我可以通过做一些小的改动来做到这一点......这是一段运行良好的代码......

    <html>
     <head>
      <script type="text/javascript" src="http://code.jquery.com/jquery-1.7.1.js"></script>
      <script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.16/jquery-ui.js"></script>
     <style>
       div{
         border:1px solid;
         background:#ff9999;
         width:500px;
         height:500px;
         display:none;
         position:absolute;
       }
     </style>
      <script>
       var mouseX,mouseY,windowWidth,windowHeight;
       var  popupLeft,popupTop;
     $(document).ready(function(){
    
       $(document).mousemove(function(e){
               mouseX = e.pageX;
               mouseY = e.pageY;
               //To Get the relative position
               if( this.offsetLeft !=undefined)
                 mouseX = e.pageX - this.offsetLeft;
               if( this.offsetTop != undefined)
                 mouseY = e.pageY; - this.offsetTop;
    
               if(mouseX < 0)
                    mouseX =0;
               if(mouseY < 0)
                   mouseY = 0;
    
               windowWidth  = $(window).width()+$(window).scrollLeft();
               windowHeight = $(window).height()+$(window).scrollTop();
       });
    
         $('html').click(function(){
           $('div').show();
          var popupWidth  = $('div').outerWidth();
          var popupHeight =  $('div').outerHeight();
    
          if(mouseX+popupWidth > windowWidth)
            popupLeft = mouseX-popupWidth;
          else
           popupLeft = mouseX;
    
          if(mouseY+popupHeight > windowHeight)
            popupTop = mouseY-popupHeight;
          else
            popupTop = mouseY; 
    
        if( popupLeft < $(window).scrollLeft()){
         popupLeft = $(window).scrollLeft();
        }
    
        if( popupTop < $(window).scrollTop()){
         popupTop = $(window).scrollTop();
        }
    
         if(popupLeft < 0 || popupLeft == undefined)
               popupLeft = 0;
          if(popupTop < 0 || popupTop == undefined)
               popupTop = 0;
    
          $('div').offset({top:popupTop,left:popupLeft});
         });
     });
      </script>
     </head>
    
     <body>
            <br/><br/><br/>  <br/><br/><br/><br/> <br/><br/> <br/>   <br/>   <br/>   <br/>   <br/>   <br/> 
            <br/><br/> <br/> <br/> <br/>    <br/><br/><br/> <br/><br/>  <br/>   <br/><br/><br/><br/><br/><br/>
            <br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/><br/>        
    
            <div>
             s dflasld fsadf
             sdfas dfsadf
            </div>
    
    </body>
    
    </html>
    

    【讨论】:

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