diff options
Diffstat (limited to 'ui')
| -rw-r--r-- | ui/core.js | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/ui/core.js b/ui/core.js index a8167d683..d6768441b 100644 --- a/ui/core.js +++ b/ui/core.js @@ -123,7 +123,7 @@ $.fn.extend( { } ); // selectors -function focusable( element, isTabIndexNotNaN ) { +function focusable( element, hasTabindex ) { var map, mapName, img, nodeName = element.nodeName.toLowerCase(); if ( "area" === nodeName ) { @@ -138,8 +138,8 @@ function focusable( element, isTabIndexNotNaN ) { return ( /^(input|select|textarea|button|object)$/.test( nodeName ) ? !element.disabled : "a" === nodeName ? - element.href || isTabIndexNotNaN : - isTabIndexNotNaN ) && + element.href || hasTabindex : + hasTabindex ) && // the element and all of its ancestors must be visible visible( element ); } @@ -164,13 +164,13 @@ $.extend( $.expr[ ":" ], { }, focusable: function( element ) { - return focusable( element, !isNaN( $.attr( element, "tabindex" ) ) ); + return focusable( element, $.attr( element, "tabindex" ) != null ); }, tabbable: function( element ) { var tabIndex = $.attr( element, "tabindex" ), - isTabIndexNaN = isNaN( tabIndex ); - return ( isTabIndexNaN || tabIndex >= 0 ) && focusable( element, !isTabIndexNaN ); + hasTabindex = tabIndex != null; + return ( !hasTabindex || tabIndex >= 0 ) && focusable( element, hasTabindex ); } } ); |