visible and hidden filters ignore visibility style

[lathan]

If the style visibility: hidden is applied to an element or its parents, it becomes hidden, but the jquery :visible is still true.

Test case included using 1.4.2 on Mozilla 3.6.8 and Chrome 5.0.375.125 both running on Ubuntu Lucid Linux

[lathan]

same issue as #5670, but it lacked an attached test case

[lathan]

the custom filter I've made to get it to work is:

jQuery.expr.filters.reallyvisible = function(a){
  return !jQuery(a).parents().add(a).filter(function(){
        return ($(this).is(':hidden') ||
               $(this).css('visibility') == 'hidden');})
  .length; }

the current hidden filter checks for width / height being 0 and for css being display: none; but being visibility: hidden doesn't change any of those.

[dmethvin]

As documented, :visible and :hidden only take the css display property into account. They do not consider an element to be visible if it has visibility:hidden, opacity:0, left:-10000px, bottom: 10000px, or other properties that may make it difficult to see the element.