Skip to main content

How to find out whether an element is in a hidden iframe

Image
By User



Using jQuery, one can easily find out whether a particular element is visible using







$(element).is(':visible')







While having some limitations (doesn't cover css visibility hidden or the actual visibility in the viewport, i.e. whether it's covered by other elements or scrolled away), I find it being useful for my scenario. The catch is, it only works within one iframe.





If the element has any parent within its document with display:none; , it returns false. If the whole document is included in an iframe which has display:none , it returns true. Is it possible to somehow detect this in another way ?


Labels:

Comments

Post a Comment

Popular posts from this blog

Why is this Javascript much *slower* than its jQuery equivalent?

By User
I have a HTML list of about 500 items and a "filter" box above it. I started by using jQuery to filter the list when I typed a letter (timing code added later): $('#filter').keyup( function() { var jqStart = (new Date).getTime(); var search = $(this).val().toLowerCase(); var $list = $('ul.ablist > li'); $list.each( function() { if ( $(this).text().toLowerCase().indexOf(search) === -1 ) $(this).hide(); else $(this).show(); } ); console.log('Time: ' + ((new Date).getTime() - jqStart)); } ); However, there was a couple of seconds delay after typing each letter (particularly the first letter). So I thought it may be slightly quicker if I used plain Javascript (I read recently that jQuery's each function is particularly slow). Here's my JS equivalent: document.getElementById('filter').addEventListener( 'keyup', function () { var jsStart = (new Date).getTime()...
3 comments
Read more