Bootstrap 3 modal: make it movable/draggable without jquery-ui

Question

I'm tring to develop some things:

make a bootstrap modal draggable/movable on the window without jquery-ui

I use backbone.js but I think this is not so important. In a piece of code I define my bootstram modal:




    
        
            
             Some Title
        
        

            
                ... some content

Now when I try to use set the modal draggable with this code:

 var $container = $("#detailsContainer");
 $container.on('mousedown', 'div', function() {
            $(this).addClass('draggable').parents().on('mousemove', function(e) {
                $('.draggable').offset({
                    top: e.pageY - $('.draggable').outerHeight() / 2,
                    left: e.pageX - $('.draggable').outerWidth() / 2
                }).on('mouseup', function() {
                    $(this).removeClass('draggable');
                });
            });
            e.preventDefault();
        }).on('mouseup', function() {
            $('.draggable').removeClass('draggable');
        });

the behaviour is strange:

when I pick up the modal the modal goes out of window. I tried to fix changing some values to top and left, but nothing has been good.
when I pick some under element of the modal-body (for example an Input text), then I can move arround in the modal the input text. But I don't want this! I only want that the whole modal can be draggable/movable.

The example above I have found it on stackoverflow (Sorry I don't find the link on it). I find also some example with jquery-ui. But I don't want to use it. Only Jquery.

I have also tried: Dialog draggable, and JQuery Draggable Demo. But without success. The first one don't make my modal draggable, and the second one I din't understand how to use it with $container

Can someone help me?

Update

        $('body').on('mousedown', '.modal-dialog', function() {
             $(this).addClass('draggable').parents().on('mousemove', function(e) {
                 $('.draggable').offset({
                     top: e.pageY - $('.draggable').outerHeight() / 2,
                     left: e.pageX - $('.draggable').outerWidth() / 2
                 }).on('mouseup', function() {
                     $(this).removeClass('draggable');
                 });
             });
             e.preventDefault();
         }).on('mouseup', function() {
             $('.draggable').removeClass('draggable');
         });

But when I want to drag... it changes the position of where I picked it up the modal. It goes on the corner. Not there where I picked it up? How can I correct this? It's wrong to put the ".modal-dialog" on the mousedown function? And If this is wrong, which element I have to put it there?

And an other point: the elements that I have in the modal body (example drop down) must not be draggable. How can I exclude them?

Udhay Titus · Accepted Answer

try this code surely it'll helps you, below code is without jquery ui

check this updated fiddle check here

$(function() {
    $('body').on('mousedown', '#myModal', function(ev) {
        $(this).addClass('draggable').parents().on('mousemove', function(e) {
            $('.draggable').offset({
                top: e.pageY - $('.draggable').outerHeight() /8,
                left: e.pageX - $('.draggable').outerWidth() /8
            }).on('mouseup', function() {
                $(this).removeClass('draggable');
            });
        });
        ev.preventDefault();
    }).on('mouseup', function() {
        $('.draggable').removeClass('draggable');
    });
});

body {padding:50px;}

div {
  cursor:move;
}








  
    
      
        
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Bootstrap 3 modal: make it movable/draggable without jquery-ui

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