]> scripts.mit.edu Git - autoinstalls/wordpress.git/blobdiff - wp-content/themes/twentythirteen/js/functions.js
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[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 ),
-               nav, button, menu;
-
-       nav = $( '#site-navigation' );
-       button = nav.find( '.menu-toggle' );
-       menu = nav.find( '.nav-menu' );
-
-       /**
-        * 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() {
-               if ( ! nav || ! button ) {
-                       return;
-               }
-
-               // Hide button if menu is missing or empty.
-               if ( ! menu || ! menu.children().length ) {
-                       button.hide();
-                       return;
-               }
-
-               button.on( 'click.twentythirteen', function() {
-                       nav.toggleClass( 'toggled-on' );
-                       if ( nav.hasClass( 'toggled-on' ) ) {
-                               $( this ).attr( 'aria-expanded', 'true' );
-                               menu.attr( 'aria-expanded', 'true' );
-                       } else {
-                               $( this ).attr( 'aria-expanded', 'false' );
-                               menu.attr( 'aria-expanded', 'false' );
-                       }
-               } );
-
-               // Fix sub-menus for touch devices.
-               if ( 'ontouchstart' in window ) {
-                       menu.find( '.menu-item-has-children > a, .page_item_has_children > a' ).on( 'touchstart.twentythirteen', function( e ) {
-                               var el = $( this ).parent( 'li' );
-
-                               if ( ! el.hasClass( 'focus' ) ) {
-                                       e.preventDefault();
-                                       el.toggleClass( 'focus' );
-                                       el.siblings( '.focus' ).removeClass( 'focus' );
-                               }
-                       } );
-               }
-
-               // Better focus for hidden submenu items for accessibility.
-               menu.find( 'a' ).on( 'focus.twentythirteen blur.twentythirteen', function() {
-                       $( this ).parents( '.menu-item, .page_item' ).toggleClass( 'focus' );
-               } );
-       } )();
-
-       /**
-        * @summary Add or remove ARIA attributes.
-        * Uses jQuery's width() function to determine the size of the window and add
-        * the default ARIA attributes for the menu toggle if it's visible.
-        * @since Twenty Thirteen 1.5
-        */
-       function onResizeARIA() {
-               if ( 643 > _window.width() ) {
-                       button.attr( 'aria-expanded', 'false' );
-                       menu.attr( 'aria-expanded', 'false' );
-                       button.attr( 'aria-controls', 'primary-menu' );
-               } else {
-                       button.removeAttr( 'aria-expanded' );
-                       menu.removeAttr( 'aria-expanded' );
-                       button.removeAttr( 'aria-controls' );
-               }
-       }
-
-       _window
-               .on( 'load.twentythirteen', onResizeARIA )
-               .on( 'resize.twentythirteen', function() {
-                       onResizeARIA();
-       } );
-
-       /**
-        * Makes "skip to content" link work correctly in IE9 and Chrome for better
-        * accessibility.
-        *
-        * @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
-        */
-       _window.on( 'hashchange.twentythirteen', function() {
-               var element = document.getElementById( location.hash.substring( 1 ) );
-
-               if ( element ) {
-                       if ( ! /^(?:a|select|input|button|textarea)$/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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