Core: Remove ancestor visibility requirement from :focusable selector

* Check computed visibility in addition to :visible
* Add tests for nested visibility override

Fixes #14596
Closes gh-1583
This commit is contained in:
Weston Ruter 2015-08-04 16:46:58 -07:00 committed by Scott González
parent 6308a261fd
commit 0db243a736
3 changed files with 16 additions and 14 deletions

View File

@ -80,6 +80,11 @@
<div id="visibilityHiddenAncestor" style="visibility: hidden;">
<input id="visibilityHiddenAncestor-input">
<span tabindex="1" id="visibilityHiddenAncestor-span">.</span>
<span id="nestedVisibilityOverrideAncestor" style="visibility: visible">
<input id="nestedVisibilityOverrideAncestor-input">
<span tabindex="1" id="nestedVisibilityOverrideAncestor-span">.</span>
</span>
</div>
<span tabindex="1" id="displayNone-span" style="display: none;">.</span>

View File

@ -125,7 +125,7 @@ test( "focusable - disabled elements", function() {
} );
test( "focusable - hidden styles", function() {
expect( 8 );
expect( 10 );
isNotFocusable( "#displayNoneAncestor-input", "input, display: none parent" );
isNotFocusable( "#displayNoneAncestor-span", "span with tabindex, display: none parent" );
@ -133,6 +133,9 @@ test( "focusable - hidden styles", function() {
isNotFocusable( "#visibilityHiddenAncestor-input", "input, visibility: hidden parent" );
isNotFocusable( "#visibilityHiddenAncestor-span", "span with tabindex, visibility: hidden parent" );
isFocusable( "#nestedVisibilityOverrideAncestor-input", "input, visibility: visible parent but visibility: hidden grandparent" );
isFocusable( "#nestedVisibilityOverrideAncestor-span", "span with tabindex, visibility: visible parent but visibility: hidden grandparent " );
isNotFocusable( "#displayNone-input", "input, display: none" );
isNotFocusable( "#visibilityHidden-input", "input, visibility: hidden" );
@ -210,7 +213,7 @@ test( "tabbable - disabled elements", function() {
} );
test( "tabbable - hidden styles", function() {
expect( 8 );
expect( 10 );
isNotTabbable( "#displayNoneAncestor-input", "input, display: none parent" );
isNotTabbable( "#displayNoneAncestor-span", "span with tabindex, display: none parent" );
@ -218,6 +221,9 @@ test( "tabbable - hidden styles", function() {
isNotTabbable( "#visibilityHiddenAncestor-input", "input, visibility: hidden parent" );
isNotTabbable( "#visibilityHiddenAncestor-span", "span with tabindex, visibility: hidden parent" );
isTabbable( "#nestedVisibilityOverrideAncestor-input", "input, visibility: visible parent but visibility: hidden grandparent" );
isTabbable( "#nestedVisibilityOverrideAncestor-span", "span with tabindex, visibility: visible parent but visibility: hidden grandparent " );
isNotTabbable( "#displayNone-input", "input, display: none" );
isNotTabbable( "#visibilityHidden-input", "input, visibility: hidden" );

View File

@ -34,26 +34,17 @@ $.ui.focusable = function( element, hasTabindex ) {
if ( !element.href || !mapName || map.nodeName.toLowerCase() !== "map" ) {
return false;
}
img = $( "img[usemap='#" + mapName + "']" )[ 0 ];
return !!img && visible( img );
img = $( "img[usemap='#" + mapName + "']" );
return img.length > 0 && img.is( ":visible" );
}
return ( /^(input|select|textarea|button|object)$/.test( nodeName ) ?
!element.disabled :
"a" === nodeName ?
element.href || hasTabindex :
hasTabindex ) &&
// The element and all of its ancestors must be visible
visible( element );
$( element ).is( ":visible" ) && $( element ).css( "visibility" ) === "visible";
};
function visible( element ) {
return $.expr.filters.visible( element ) &&
!$( element ).parents().addBack().filter( function() {
return $.css( this, "visibility" ) === "hidden";
} ).length;
}
$.extend( $.expr[ ":" ], {
focusable: function( element ) {
return $.ui.focusable( element, $.attr( element, "tabindex" ) != null );