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Thread: Need example code of drag-drop for <div>

  1. #1
    Join Date
    Apr 2005
    Posts
    210

    Talking Need example code of drag-drop for <div>

    I need to drag a <div> then drop it into another <div>.

    The action has to work for IE8, firefox on XP.

    Thanks for link to useful code.

    .

  2. #2
    Join Date
    Jun 2004
    Location
    Portsmouth UK
    Posts
    2,662
    Code:
    <!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" xml:lang="en" lang="en">
    
    <head>
      <title></title>
    <style type="text/css">
    /*<![CDATA[*/
    .draggable {
      width:100px;height:75px;border:solid red 1px;background-Color:#FFCC66;
    }
    
    .drop_zone {
      width:200px;height:200px;border:solid red 1px;float:left;
    }
    
    /*]]>*/
    </style>
    
    </head>
    
    <body>
    
    <div class="draggable" >1</div>
    <div class="draggable" >2</div>
    <div class="draggable" >3</div>
    <br /><br />
    <p>
    <div class="drop_zones">
      <div class="drop_zone" id="drop_zone1">
      </div>
    
      <div class="drop_zone" id="drop_zone2">
      </div>
    
      <div class="drop_zone" id="drop_zone3">
      </div>
    </div>
    </p>
    <script  type="text/javascript">
    /*<![CDATA[*/
    // Drag Dock (23-May-2012)
    // by Vic Phillips http://www.vicsjavascripts.org.uk/
    
    
    var zxcDragDock={
    
     init:function(o){
      var drag=this.bycls(o.DragClass,document),docks=this.bycls(o.DockClass,document),obj,z0=0
      obj={
       docks:docks
      }
      for (;z0<drag.length;z0++){
       this.addevt(drag[z0],'mousedown','down',obj,drag[z0]);
      }
      this.addevt(document,'mousemove','move',obj);
      this.addevt(document,'mouseup','up',obj);
     },
    
     down:function(e,o,img){
      var p=this.pos(img);
      o.drag=img.cloneNode(true);
      o.drag.src=img.src;
      o.drag.style.position='absolute';
      o.drag.style.zIndex='101';
      o.drag.style.left=p[0]+'px';
      o.drag.style.top=p[1]+'px';
      this.opac(o.drag,50);
      this.opac(img,50);
      document.body.appendChild(o.drag);
      o.img=img;
      o.mse=[e.clientX,e.clientY];
      this.rtn(e);
     },
    
     move:function(e,o){
      if (o.drag){
       var mse=[e.clientX,e.clientY];
       o.drag.style.left=parseInt(o.drag.style.left)+mse[0]-o.mse[0]+'px';
       o.drag.style.top=parseInt(o.drag.style.top)+mse[1]-o.mse[1]+'px';
       o.mse=mse;
       this.rtn(e);
      }
     },
    
     up:function(e,o){
      if (o.drag){
       var lft=parseInt(o.drag.style.left),top=parseInt(o.drag.style.top),p,z0=0;
       for (;z0<o.docks.length;z0++){
        p=this.pos(o.docks[z0]),w=o.drag.offsetWidth;
        if (lft>p[0]&&lft+w<p[0]+o.docks[z0].offsetWidth&&top>p[1]&&top+o.drag.offsetHeight<p[1]+o.docks[z0].offsetHeight){
         o.docks[z0].appendChild(o.img);
        }
       }
       document.body.removeChild(o.drag);
       this.opac(o.img,100);
       o.drag=false;
       this.rtn(e);
      }
     },
    
     rtn:function(e){
      if(e.stopPropagation){
       e.stopPropagation();
      }
      if (!window.event){
       e.preventDefault();
      }
      e.cancelBubble=true;
      e.cancel=true;
      e.returnValue=false;
      return false;
     },
    
     opac:function(obj,opc){
      obj.style.filter='alpha(opacity='+opc+')';
      obj.style.opacity=obj.style.MozOpacity=obj.style.WebkitOpacity=obj.style.KhtmlOpacity=opc/100-.001;
     },
    
     pos:function(obj){
      var rtn=[0,0];
      while(obj){
       rtn[0]+=obj.offsetLeft;
       rtn[1]+=obj.offsetTop;
       obj=obj.offsetParent;
      }
      return rtn;
     },
    
     addevt:function(o,t,f,p,p1){
      var oop=this;
      if (o.addEventListener) o.addEventListener(t,function(e){ return oop[f](e,p,p1);}, false);
      else if (o.attachEvent) o.attachEvent('on'+t,function(e){ return oop[f](e,p,p1); });
     },
    
     bycls:function (nme,el){
      for (var reg=new RegExp('\\b'+nme+'\\b'),els=el.getElementsByTagName('*'),ary=[],z0=0; z0<els.length;z0++){
       if(reg.test(els[z0].className)){
        ary.push(els[z0]);
       }
      }
      return ary;
     }
    
    }
    
    zxcDragDock.init({
     DragClass:'draggable',
     DockClass:'drop_zone'
    });
    
    /*]]>*/
    </script>
    
    </body>
    
    </html>
    Vic

    God loves you and will never love you less.

    http://www.vicsjavascripts.org/Home.htm
    If my post has been useful please donate to http://www.operationsmile.org.uk/

  3. #3
    Join Date
    Apr 2005
    Posts
    210
    You code looks like an AD other than a sample.

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