0e82a6cfd0
* Mostly whitespace in callers: $('foo').bar(baz,quux) => $( 'foo' ).bar( baz, quux )
* Also several occurrences of mixes spaces and tabs in the indention in front of a line, converted to tabs.
* And double spaces -> single spaces at random.
50 lines
1.3 KiB
JavaScript
50 lines
1.3 KiB
JavaScript
/**
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* jQuery tabIndex
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*/
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( function( $ ) {
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/**
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* Finds the lowerst tabindex in use within a selection
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*
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* @return number Lowest tabindex on the page
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*/
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$.fn.firstTabIndex = function() {
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var minTabIndex = null;
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$(this).find( '[tabindex]' ).each( function() {
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var tabIndex = parseInt( $(this).prop( 'tabindex' ), 10 );
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// In IE6/IE7 the above jQuery selector returns all elements,
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// becuase it has a default value for tabIndex in IE6/IE7 of 0
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// (rather than null/undefined). Therefore check "> 0" as well.
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// Under IE7 under Windows NT 5.2 is also capable of returning NaN.
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if ( tabIndex > 0 && !isNaN( tabIndex ) ) {
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// Initial value
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if ( minTabIndex === null ) {
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minTabIndex = tabIndex;
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} else if ( tabIndex < minTabIndex ) {
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minTabIndex = tabIndex;
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}
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}
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} );
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return minTabIndex;
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};
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/**
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* Finds the highest tabindex in use within a selection
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*
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* @return number Highest tabindex on the page
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*/
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$.fn.lastTabIndex = function() {
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var maxTabIndex = null;
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$(this).find( '[tabindex]' ).each( function() {
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var tabIndex = parseInt( $(this).prop( 'tabindex' ), 10 );
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if ( tabIndex > 0 && !isNaN( tabIndex ) ) {
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// Initial value
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if ( maxTabIndex === null ) {
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maxTabIndex = tabIndex;
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} else if ( tabIndex > maxTabIndex ) {
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maxTabIndex = tabIndex;
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}
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}
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} );
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return maxTabIndex;
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};
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} )( jQuery );
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