Jquery Drag And Drop On Ajax Loaded Div

I want to be able to drag an element on the page into a droppable element inside an ajax loaded div. I can get the code to work when I place the droppable element in the regular pa

Solution 1:

This appends because you try to call the droppable on a non-existing element at that moment. To solve this, you could use the callback function that can be attached to the load function and run the rest after that.

$(document).ready(function(){
  $("#site-preview").load("/site/preview", function() {
    // Page loaded and injected// We launch the rest of the code
    $( ".draggable" ).draggable({
      helper:'clone',
      appendTo: 'body',
      scroll: false
     });
    $( ".droppable" ).droppable({
      drop: function( event, ui ) {
        $( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );
      }
    });
  });
});

You can find other information about the load function here. The callback can take arguments and can be used, for example to check if it's a 404 or not.

Solution 2:

Well I was able to get it to work by adding the draggable/droppable code to the ajax loaded div itself. So the above would be amended like so

ajax loaded code

<divclass="droppable col-md-2"style="height:100px;border:1px solid gray"><p></p></div><script>
  $(function() {
    $( ".draggable" ).draggable({
      helper:'clone',
      appendTo: 'body',
      scroll: false//stops scrolling container when moved outside boundaries
    });
$( ".droppable" ).droppable({
      drop: function( event, ui ) {
        $( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );
      }
    });
  });
  </script>

And those script lines would be taken out of the main page

Solution 3:

Ajax is Asynchronous. So if you call some ajax and then call some other command, the ajax will usually finish afterwards.

This is where callbacks are useful. Try adding a callback to the ajax load call as shown here: http://api.jquery.com/load/

Something like:

$( "#site-preview" ).load( "/site/preview", function(){
    $( ".droppable" ).droppable({
        drop: function( event, ui ) {
            $( this ).addClass( "ui-state-highlight" ).find( "p" ).html( "Dropped!" );
        }
    });
});

Side note: you should probably start using scripts instead of <script> tags.