实现可以左右拖动的分栏

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java
web前端

http://www.sharejs.com/cat-133.aspx 示例。。。。

代码使用方法：

在网页<head>区添加以下代码
<script type="text/javascript" src="js/mootools-1.2.3-core-yc.js"></script>
<script type="text/javascript" src="js/mootools-1.2.3.1-more.js"></script>
  <style type="text/css">
  .clear { clear:both;}
  p  { padding:10px;}


  #message{
   border:1px solid #DDD;
   background:#FFFFEE;
   text-align:center;
   padding:4px;
   min-height:20px;
   margin-bottom:10px;
   -moz-border-radius: 6px;
   -webkit-border-radius: 6px;
   }
  #col_wrapper{
   border:1px solid #0066cc;
   position:relative;
   min-height:300px;
   margin-top:30px;
   }
  .column  {
   position:relative;
   min-height:300px;
   }
  #col_1  {
   position:absolute;
   top:0px;
   left:0px;
   width:200px;
   background:#ECECEC;
   }
  #col_2  {
   position:absolute;
   top:0px;
   left:200px;
   width:558px;
   border-right:1px dotted #0066cc;
   border-left:1px dotted #0066cc;
   background:#EEEEEE;
   }
  #col_3  {
   position:absolute;
   top:0px;
   left:760px;
   width: 200px;
   background:#EDEDED;
   }
  .column .col_title{
   padding:4px;
   background:#0066cc;
   border-bottom:1px solid #FFF;
   color:#FFF;
   }
  .column .col_msg{
   float:right;
   font-size:90%;
   color:#FFF;

   }
  .resize {
   position: absolute;
   top: 26px;
   right: -3px;
   height: 30px;
   width: 3px;
   background: #666 url("images/handle.gif");
   cursor: col-resize;
   z-index:200;
   -moz-border-radius: 2px;
   -webkit-border-radius: 2px;
   border: 1px solid #666;

}

  </style>

  <script type="text/javascript">
/******************************************************
* mootools实现可以左右拖动的分栏 Share JavaScript (http://www.ShareJS.com)
* 使用此脚本程序，请保留此声明
* 获取此脚本以及更多的JavaScript程序，请访问 http://www.ShareJS.com
******************************************************/

  window.addEvent('domready', function() {
   // define column elemnts
   var col_wrap = $('col_wrapper'); // define the column wrapper so as to be able to get the total width via mootools
   var col_left = $('col_1');
   var col_center = $('col_2');
   var col_right = $('col_3');

   // define padding (seperator line widths) for column borders as defined in css
   var pad   = 1;

   // define snap if required - set to 0 for no snap
   var w_snap  = 5;

   var w_total  = col_wrap.getWidth()-(pad*2); // total width of wrapper
   var w_min  = 120;       // minimum width for columns
   var w_min_c  = w_min-(2*pad);

   // define message output elements (not essential to script)
   var col_1_msg = $("col_1_msg");
   var col_2_msg = $("col_2_msg");
   var col_3_msg = $("col_3_msg");

   //show column start widths in col headers (just for show)
   col_1_msg.innerHTML = col_left.getWidth()+"px";
   col_2_msg.innerHTML = col_center.getWidth()+"px";
   col_3_msg.innerHTML = col_right.getWidth()+"px";

   // left column - affects center column position and width
   col_left.makeResizable({
    handle: col_left.getChildren('.resize'),
    grid: w_snap,
    modifiers: {x: 'width', y: false},
    limit: {x: [w_min,null]},


    onStart:function(el){
     // get available width - total width minus right column - minimum col with
     w_avail=(w_total-col_right.getWidth())-w_min;
    },
    onDrag: function(el) {
     if(el.getWidth()>=w_avail){
      // max width reached - stop drag (force max widths)
      el.setStyle("width",w_avail);
     }

     // set center col left position
     col_center.setStyle("left",col_left.getWidth());

     // define and set center col width (total minus left minus right)
     w_center=w_total-col_left.getWidth()-col_right.getWidth();
     col_center.setStyle("width",w_center.toInt()-(pad*2));

     // messages
     col_1_msg.innerHTML=" "+col_left.getWidth()+"px";
     col_2_msg.innerHTML=" "+col_center.getWidth()+"px";
     col_3_msg.innerHTML=" "+col_right.getWidth()+"px";
    },
    onComplete: function() {
     //could add final width to form field here
    }
   });

   // mootools can't resize to the left so we have to resize the center column rather than the right-hand column
   col_center.makeResizable({
    handle: col_center.getChildren('.resize'),
    grid: w_snap,
    modifiers: {x: 'width', y: false},
    limit: {x: [w_min_c,null]},



    onStart:function(el){
     // get start width so as to be able to adjust center column width
     w_start=el.getWidth();

     // get available width - total width minus left column - minimum col with
     w_avail=w_total-col_left.getWidth()-w_min-(pad*2);
    },
    onDrag: function(el) {
     if(el.getWidth()>=w_avail){
      // max width reached - stop drag (force max widths)
      el.setStyle("width",w_avail);
     }else if(el.getWidth()==w_min_c){
      // ensure that right col has complete available width
      el.setStyle("width",w_min_c);
     }


     // define new left position
     l_new = col_left.getWidth()+col_center.getWidth(); // force left space for right col
     col_right.setStyle("left",l_new.toInt());


     // define and set right column width - will always be result of left and center columns
     w_new = w_total-col_left.getWidth()-col_center.getWidth();
     col_right.setStyle("width",w_new.toInt());

     // show messages
     col_1_msg.innerHTML=" "+col_left.getWidth()+"px";
     col_2_msg.innerHTML=" "+col_center.getWidth()+"px";
     col_3_msg.innerHTML=" "+col_right.getWidth()+"px";
    },
    onComplete: function() {
     //could add final width to form field here
    }

   });
  });
  </script>

在网页<body>区添加以下代码

<div id="col_wrapper">
   <div id="col_1" class="column drag_width">
    <div id="col_1_title" class="col_title"> <span id="col_1_msg" class="col_msg"></span></div>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
    <div class="resize"></div>
   </div>
   <div id="col_2" class="column drag_width">
    <div id="col_1_title" class="col_title"> <span id="col_2_msg" class="col_msg"></span></div>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
    <div class="resize"></div>
    </div>
   <div id="col_3" class="column">
    <div id="col_1_title" class="col_title"> <span id="col_3_msg" class="col_msg"></span></div>
    <p>Lorem ipsum dolor sit amet, consectetur adipisicing elit, sed do eiusmod tempor incididunt ut labore et dolore magna aliqua.</p>
   </div>
   <div class="clear"></div>
  </div>
  <p>
  <ul>
   <li>Drag the column handles to adjust the column widths.</li>
   <li>Uses <a href="http://www.mootools.net" title="Mootools" target="_blank">Mootools</a> v1.2.3</li>
   <li>See source code for implementation</li>
   <li>How to use at <a href="http://blog.cbolson.com/mootools-expandable-columns/" title="Back to blog">the blog</a></li>
   <li>Help and Suggestions on the <a href="http://forum.cbolson.com/viewforum.php?f=15" title="Need Help">forum</a></li>
  </ul>
  </p>
</div>

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JS-DOM Element方法和属性 | js验证表单大全,用JS控制表单提交

2011-08-25 15:57
浏览 1636
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分类:Web前端
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