script.aculo.us Drag & Drop onDrop Option

Last Updated : 20 Nov, 2020

This script.aculo.us Drag & Drop onDrop Option is used to call the callback function which is called when a suitable drag-gable element is dropped onto the drop target and the target accepts it.

Syntax:

Droppables.add('element', 
    {onDrop: 'callbackFunction'}
);

Values:

function: This option takes the callback function.

Example:

HTML

<!DOCTYPE html> 
<html> 
  
<head> 
    <script type="text/javascript" 
        src="prototype.js"> 
    </script> 
      
    <script type="text/javascript"
        src="scriptaculous.js?load = effects,controls"> 
    </script> 
      
    <script type="text/javascript"> 
        window.onload = function () { 
            $A($('draggables').getElementsByTagName('img')) 
                .each(function (item) { 
                    new Draggable(item, {  
                        revert: true,  
                        ghosting: true  
                    }); 
                }); 
  
            Droppables.add('droparea', {  
                hoverclass: 'hoverActive',  
                onDrop: moveItem  
            }); 
              
            // Set drop area default non cleared. 
            $('droparea').cleared = false; 
        } 
  
        function moveItem(draggable, droparea) { 
            if (!droparea.cleared) { 
                droparea.innerHTML = ''; 
                droparea.cleared = true; 
            } 
  
            draggable.parentNode.removeChild(draggable); 
            droparea.appendChild(draggable); 
            alert("Image dropped successully") 
        } 
    </script> 
  
    <style type="text/css"> 
        #draggables { 
            width: 550px; 
            height: 73px; 
        } 
  
        #gfg { 
            width: 550px; 
            height: 73px; 
        } 
  
        #droparea { 
            float: left; 
            width: 650px; 
            height: 90px; 
            border: 2px solid gray; 
            text-align: center; 
            font-size: 16px; 
            padding: 12px; 
        } 
    </style> 
</head> 
  
<body> 
    <div> 
        <h1 style="color: green"> 
            GeeksforGeeks 
        </h1> 
  
        <p>A Computer Science Portal for Geeks</p> 
    </div> 
  
    <strong> 
        script.aculo.us Drag & Drop  
        onDrop Option 
    </strong> 
      
    <div id="draggables"> 
        <img src= 
"https://media.geeksforgeeks.org/wp-content/cdn-uploads/20200817185016/gfg_complete_logo_2x-min.png"> 
    </div> 
      
    <br> 
    <div id="droparea"> 
        Drag the Image and Drop Your  
        Image in this area 
    </div> 
</body> 
  
</html> 