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a553da699d
git-svn-id: http://core.svn.wordpress.org/trunk@23757 1a063a9b-81f0-0310-95a4-ce76da25c4cd
124 lines
3.1 KiB
JavaScript
124 lines
3.1 KiB
JavaScript
/**
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* Functionality specific to Twenty Thirteen.
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*
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* Provides helper functions to enhance the theme experience.
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*/
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( function( $ ) {
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var twentyThirteen = {
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/**
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* Adds a top margin to the footer if the sidebar widget area is
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* higher than the rest of the page, to help the footer always
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* visually clear the sidebar.
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*/
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adjustFooter : function() {
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var sidebar = $( '#secondary .widget-area' ),
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secondary = ( 0 == sidebar.length ) ? -40 : sidebar.height(),
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margin = $( '#tertiary .widget-area' ).height() - $( '#content' ).height() - secondary;
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if ( margin > 0 && window.innerWidth > 999 )
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$( '#colophon' ).css( 'margin-top', margin + 'px' );
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},
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/**
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* Repositions the window on jump-to-anchor to account for navbar
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* height.
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*/
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adjustAnchor : function() {
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if ( window.location.hash )
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window.scrollBy( 0, -49 );
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}
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};
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$( document ).on( 'ready', function() {
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twentyThirteen.adjustAnchor();
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if ( body.is( '.sidebar' ) )
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twentyThirteen.adjustFooter();
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} );
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$( window ).on( 'hashchange', twentyThirteen.adjustAnchor );
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/**
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* Displays the fixed navbar based on screen position.
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*/
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var html = $( 'html' ),
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body = $( 'body' ),
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navbar = $( '#navbar' ),
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navbarOffset = -1,
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toolbarOffset = body.is( '.admin-bar' ) ? 28 : 0;
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$( window ).scroll( function() {
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if ( navbarOffset < 0 )
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navbarOffset = navbar.offset().top - toolbarOffset;
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if ( window.scrollY >= navbarOffset && 644 < window.innerWidth )
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html.addClass( 'navbar-fixed' );
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else
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html.removeClass( 'navbar-fixed' );
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} );
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/**
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* Allows clicking the navbar to scroll to top.
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*/
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navbar.on( 'click', function( event ) {
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// Ensure that the navbar element was the target of the click.
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if ( 'navbar' == event.target.id || 'site-navigation' == event.target.id )
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$( 'html, body' ).animate( { scrollTop: 0 }, 'fast' );
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} );
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/**
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* Enables menu toggle for small screens.
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*/
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( function() {
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var nav = $( '#site-navigation' ), button, menu;
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if ( ! nav )
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return;
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button = nav.find( '.menu-toggle' );
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menu = nav.find( '.nav-menu' );
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if ( ! button )
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return;
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// Hide button if menu is missing or empty.
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if ( ! menu || ! menu.children().length ) {
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button.hide();
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return;
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}
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$( '.menu-toggle' ).on( 'click', function() {
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nav.toggleClass( 'toggled-on' );
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} );
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} )();
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/**
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* Makes "skip to content" link work correctly in IE9 and Chrome for better
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* accessibility.
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*
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* @link http://www.nczonline.net/blog/2013/01/15/fixing-skip-to-content-links/
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*/
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$( window ).on( 'hashchange', function() {
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var element = $( location.hash );
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if ( element ) {
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if ( ! /^(?:a|select|input|button)$/i.test( element.tagName ) )
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element.attr( 'tabindex', -1 );
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element.focus();
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}
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} );
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/**
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* Arranges footer widgets vertically.
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*/
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if ( $.isFunction( $.fn.masonry ) ) {
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var columnWidth = body.is( '.sidebar' ) ? 228 : 245;
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$( '#secondary .widget-area' ).masonry( {
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itemSelector: '.widget',
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columnWidth: columnWidth,
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gutterWidth: 20,
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isRTL: body.is( '.rtl' )
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} );
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}
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} )( jQuery ); |