CaffGeek/MBACNationals

/**
 * Theme functions file
 *
 * Contains handlers for navigation, accessibility, header sizing
 * footer widgets and Featured Content slider
 *
 */
( function( $ ) {
    var body    = $( 'body' ),
        _window = $( window );

    // Enable menu toggle for small screens.
    ( function() {
        var nav = $( '#primary-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.twentyfourteen', 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.twentyfourteen', 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();

            // Repositions the window on jump-to-anchor to account for header height.
            window.scrollBy( 0, -80 );
        }
    } );

    $( function() {
        // Search toggle.
        $( '.search-toggle' ).on( 'click.twentyfourteen', function( event ) {
            var that    = $( this ),
                wrapper = $( '.search-box-wrapper' );

            that.toggleClass( 'active' );
            wrapper.toggleClass( 'hide' );

            if ( that.is( '.active' ) || $( '.search-toggle .screen-reader-text' )[0] === event.target ) {
                wrapper.find( '.search-field' ).focus();
            }
        } );

        /*
         * Fixed header for large screen.
         * If the header becomes more than 48px tall, unfix the header.
         *
         * The callback on the scroll event is only added if there is a header
         * image and we are not on mobile.
         */
        if ( _window.width() > 781 ) {
            var mastheadHeight = $( '#masthead' ).height(),
                toolbarOffset, mastheadOffset;

            if ( mastheadHeight > 48 ) {
                body.removeClass( 'masthead-fixed' );
            }

            if ( body.is( '.header-image' ) ) {
                toolbarOffset  = body.is( '.admin-bar' ) ? $( '#wpadminbar' ).height() : 0;
                mastheadOffset = $( '#masthead' ).offset().top - toolbarOffset;

                _window.on( 'scroll.twentyfourteen', function() {
                    if ( ( window.scrollY > mastheadOffset ) && ( mastheadHeight < 49 ) ) {
                        body.addClass( 'masthead-fixed' );
                    } else {
                        body.removeClass( 'masthead-fixed' );
                    }
                } );
            }
        }

        // Focus styles for menus.
        $( '.primary-navigation, .secondary-navigation' ).find( 'a' ).on( 'focus.twentyfourteen blur.twentyfourteen', function() {
            $( this ).parents().toggleClass( 'focus' );
        } );
    } );

    _window.load( function() {
        // Arrange footer widgets vertically.
        if ( $.isFunction( $.fn.masonry ) ) {
            $( '#footer-sidebar' ).masonry( {
                itemSelector: '.widget',
                columnWidth: function( containerWidth ) {
                    return containerWidth / 4;
                },
                gutterWidth: 0,
                isResizable: true,
                isRTL: $( 'body' ).is( '.rtl' )
            } );
        }

        // Initialize Featured Content slider.
        if ( body.is( '.slider' ) ) {
            $( '.featured-content' ).featuredslider( {
                selector: '.featured-content-inner > article',
                controlsContainer: '.featured-content'
            } );
        }
    } );
} )( jQuery );