Wordpress 3.6

[autoinstalls/wordpress.git] / wp-content / themes / twentythirteen / js / functions.js

diff --git a/wp-content/themes/twentythirteen/js/functions.js b/wp-content/themes/twentythirteen/js/functions.js
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+/**
+ * Functionality specific to Twenty Thirteen.
+ *
+ * Provides helper functions to enhance the theme experience.
+ */
+
+( function( $ ) {
+       var body    = $( 'body' ),
+           _window = $( window );
+
+       /**
+        * Adds a top margin to the footer if the sidebar widget area is higher
+        * than the rest of the page, to help the footer always visually clear
+        * the sidebar.
+        */
+       $( function() {
+               if ( body.is( '.sidebar' ) ) {
+                       var sidebar   = $( '#secondary .widget-area' ),
+                           secondary = ( 0 == sidebar.length ) ? -40 : sidebar.height(),
+                           margin    = $( '#tertiary .widget-area' ).height() - $( '#content' ).height() - secondary;
+
+                       if ( margin > 0 && _window.innerWidth() > 999 )
+                               $( '#colophon' ).css( 'margin-top', margin + 'px' );
+               }
+       } );
+
+       /**
+        * Enables menu toggle for small screens.
+        */
+       ( function() {
+               var nav = $( '#site-navigation' ), button, menu;
+               if ( ! nav )
+                       return;
+
+               button = nav.find( '.menu-toggle' );
+               if ( ! button )
+                       return;
+
+               // Hide button if menu is missing or empty.
+               menu = nav.find( '.nav-menu' );
+               if ( ! menu || ! menu.children().length ) {
+                       button.hide();
+                       return;
+               }
+
+               $( '.menu-toggle' ).on( 'click.twentythirteen', function() {
+                       nav.toggleClass( 'toggled-on' );
+               } );
+       } )();
+
+       /**
+        * Makes "skip to content" link work correctly in IE9 and Chrome for better
+        * accessibility.
+        *
+        * @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
+        */
+       _window.on( 'hashchange.twentythirteen', function() {
+               var element = document.getElementById( location.hash.substring( 1 ) );
+
+               if ( element ) {
+                       if ( ! /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) )
+                               element.tabIndex = -1;
+
+                       element.focus();
+               }
+       } );
+
+       /**
+        * Arranges footer widgets vertically.
+        */
+       if ( $.isFunction( $.fn.masonry ) ) {
+               var columnWidth = body.is( '.sidebar' ) ? 228 : 245;
+
+               $( '#secondary .widget-area' ).masonry( {
+                       itemSelector: '.widget',
+                       columnWidth: columnWidth,
+                       gutterWidth: 20,
+                       isRTL: body.is( '.rtl' )
+               } );
+       }
+} )( jQuery );
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