Tamás Pap Tamás Pap - 3 months ago 41
Javascript Question

Jquery UI resizable - resize a div placed over an iframe

If you check out this jsbin: http://jsbin.com/efosed/5/edit and you press "Run with JS", there will be a div that can be resized with jquery ui. Everything works like expected.
The div is placed over a "full-screen" iframe. In the linked example this iframe has:

display: none
.

If I modify it to
display: block
, and re-run the script the reziable plugin will have some strange behavior. You can try it here: http://jsbin.com/efosed/6/edit.
It will not handle mouse events correctly.
What can be the reason, and how can I fix it?

Answer

You have to implement your own logic to fix iframe. One solution is to add a div over your iframe:

DEMO

$(function() {
  $('#resizable').resizable({
      start: function(event, ui) {
        $('<div class="ui-resizable-iframeFix" style="background: #fff;"></div>')
            .css({
                width:'100%', height: '100%',
                position: "absolute", opacity: "0.001", zIndex: 1000
           })
            .appendTo("body");
      },
    stop: function(event, ui) {
        $('.ui-resizable-iframeFix').remove()
      }
  });
}); 

For modern browsers which support CSS property pointer-events, there is a better solution, see code and jsbin:

DEMO

$(function() {
  $('#resizable').resizable({
      start: function(event, ui) {
        $('iframe').css('pointer-events','none');
         },
    stop: function(event, ui) {
        $('iframe').css('pointer-events','auto');
      }
  });
});