Question

There is a div with id parentDiv, and there are some div with class block1 in parentDiv divl

like

<div id="btn"><input name="click" type="button" value="Click" class='button" /></div>

<div id="parentDiv">
    <div class="block1" style=" width:100px; height:100px; background:orange;">I am Block1</div>
    <div class="block1" style=" width:100px; height:100px; background:orange;">I am Block1</div>
</div>

and In JQuery, div with class block1, are draggable.

$(function(){
    $('.block1').draggable({
        drag: function() {
           $('.block1').text('Drag Now!');
        },
        stop: function() {
           $('.block1').text('Stop Now!');
        }
    });
});

These div are working as aspect, but the problem is, if any new div with block1 is appended in the parentDiv by clicking on btn input like

$('#btn').on('click', 'input.button', function(){
    var $newDiv=$('<div class="block1" style=" width:100px; height:100px; background:green;">I am Block1</div>');
});

that is not draggable.

Yes, It will not work, because it was not in DOM.

We are able to define a click event on #btn div to its children input.button, and if we add new input with class button in this #btn div, all will work as aspect.

So my question is, Is there a way to make all div draggable with in a parent container parentDiv, like we can do with #btn div?

Answer 1

You need to use the “live” function of jquery to add events and functions on future elements.

This code is borrowed from another post (http://stackoverflow.com/questions/1805210/jquery-drag-and-drop-using-live-events)

(function ($) {
   $.fn.liveDraggable = function (opts) {
      this.live("mouseover", function() {
         if (!$(this).data("init")) {
            $(this).data("init", true).draggable(opts);
         }
      });
      return $();
   };
}(jQuery));

Now instead of calling it like:

$(selector).draggable({opts});

…just use:

$(selector).liveDraggable({opts})