/**
 * File skip-link-focus-fix.js.
 *
 * Helps with accessibility for keyboard only users.
 *
 * Learn more: https://git.io/vWdr2
 */
( function() {
	var isIe = /(trident|msie)/i.test( navigator.userAgent );

	if ( isIe && document.getElementById && window.addEventListener ) {
		window.addEventListener( 'hashchange', function() {
			var id = location.hash.substring( 1 ),
				element;

			if ( ! ( /^[A-z0-9_-]+$/.test( id ) ) ) {
				return;
			}

			element = document.getElementById( id );

			if ( element ) {
				if ( ! ( /^(?:a|select|input|button|textarea)$/i.test( element.tagName ) ) ) {
					element.tabIndex = -1;
				}

				element.focus();
			}
		}, false );
	}
} )();

/**
 * File navigation.js.
 *
 * Handles toggling the navigation menu for small screens and enables TAB key
 * navigation support for dropdown menus.
 */
( function() {
	var container, button, menu, links, i, len;

	container = document.getElementById( 'site-navigation' );
	if ( ! container ) {
		return;
	}

	button = container.getElementsByTagName( 'button' )[0];
	if ( 'undefined' === typeof button ) {
		return;
	}

	menu = container.getElementsByTagName( 'ul' )[0];

	// Hide menu toggle button if menu is empty and return early.
	if ( 'undefined' === typeof menu ) {
		button.style.display = 'none';
		return;
	}

	menu.setAttribute( 'aria-expanded', 'false' );
	if ( -1 === menu.className.indexOf( 'nav-menu' ) ) {
		menu.className += ' nav-menu';
	}

	button.onclick = function() {
		if ( -1 !== container.className.indexOf( 'toggled' ) ) {
			container.className = container.className.replace( ' toggled', '' );
			button.setAttribute( 'aria-expanded', 'false' );
			menu.setAttribute( 'aria-expanded', 'false' );
		} else {
			container.className += ' toggled';
			button.setAttribute( 'aria-expanded', 'true' );
			menu.setAttribute( 'aria-expanded', 'true' );
		}
	};

	// Get all the link elements within the menu.
	links    = menu.getElementsByTagName( 'a' );

	// Each time a menu link is focused or blurred, toggle focus.
	for ( i = 0, len = links.length; i < len; i++ ) {
		links[i].addEventListener( 'focus', toggleFocus, true );
		links[i].addEventListener( 'blur', toggleFocus, true );
	}

	/**
	 * Sets or removes .focus class on an element.
	 */
	function toggleFocus() {
		var self = this;

		// Move up through the ancestors of the current link until we hit .nav-menu.
		while ( -1 === self.className.indexOf( 'nav-menu' ) ) {

			// On li elements toggle the class .focus.
			if ( 'li' === self.tagName.toLowerCase() ) {
				if ( -1 !== self.className.indexOf( 'focus' ) ) {
					self.className = self.className.replace( ' focus', '' );
				} else {
					self.className += ' focus';
				}
			}

			self = self.parentElement;
		}
	}

	/**
	 * Toggles `focus` class to allow submenu access on tablets.
	 */
	( function( container ) {
		var touchStartFn, i,
			parentLink = container.querySelectorAll( '.menu-item-has-children > a, .page_item_has_children > a' );

		if ( 'ontouchstart' in window ) {
			touchStartFn = function( e ) {
				var menuItem = this.parentNode, i;

				if ( ! menuItem.classList.contains( 'focus' ) ) {
					e.preventDefault();
					for ( i = 0; i < menuItem.parentNode.children.length; ++i ) {
						if ( menuItem === menuItem.parentNode.children[i] ) {
							continue;
						}
						menuItem.parentNode.children[i].classList.remove( 'focus' );
					}
					menuItem.classList.add( 'focus' );
				} else {
					menuItem.classList.remove( 'focus' );
				}
			};

			for ( i = 0; i < parentLink.length; ++i ) {
				parentLink[i].addEventListener( 'touchstart', touchStartFn, false );
			}
		}
	}( container ) );
} )();

/**
 * [description]
 * @param  {[type]} $ [description]
 * @return {[type]}   [description]
 */
( function( $ ) {

	// Variables and DOM Caching.
	var $page 		= $( '#page' ),
	$smoothScroll 	= $( 'a[href*="#content"], a[href*="#site-navigation"], a[href*="#secondary"], a[href*="#page"]' ),
	$table 			= $( 'table' ),
	$subMenu 		= $( '.main-navigation .sub-menu' ),
	$masonryEntry 	= $( '.site-content .masonry-container' ),
	$masonryWidget 	= $( '.widget-area .masonry-container' ),
	$entryGallery 	= $( '.entry-gallery' ),
	$returnTop 		= $( '.return-to-top' );

	// Smooth scroll
	function smoothScroll(){
		$smoothScroll.click(function(event) {
	        // On-page links
	        if (
	            location.pathname.replace(/^\//, '') === this.pathname.replace(/^\//, '') &&
	            location.hostname === this.hostname
	        ) {
	            // Figure out element to scroll to
	            var target = $(this.hash);
	            target = target.length ? target : $('[name=' + this.hash.slice(1) + ']');
	            // Does a scroll target exist?
	            if (target.length) {
	                // Only prevent default if animation is actually gonna happen
	                event.preventDefault();
	                $('html, body').animate({
	                    scrollTop: target.offset().top
	                }, 500, function() {
	                    // Callback after animation
	                    // Must change focus!
	                    var $target = $(target);
	                    $target.focus();
	                    if ($target.is(':focus')) { // Checking if the target was focused
	                        return false;
	                    } else {
	                        $target.attr('tabindex', '-1'); // Adding tabindex for elements not focusable
	                        $target.focus(); // Set focus again
	                    }
	                });
	            }
	        }
		});
	}

	/*
	 * Test if inline SVGs are supported.
	 * @link https://github.com/Modernizr/Modernizr/
	 */
	function supportsInlineSVG() {
		var div = document.createElement( 'div' );
		div.innerHTML = '<svg/>';
		return 'http://www.w3.org/2000/svg' === ( 'undefined' !== typeof SVGRect && div.firstChild && div.firstChild.namespaceURI );
	}

	function runFitVids(){
		$page.fitVids({
			customSelector: 'iframe[src^="https://videopress.com"]'
		});
	}

	function slick__entry_gallery() {

		$entryGallery.each( function() {
			var galleryID = $(this).attr('id');
			if ( typeof galleryID !== 'undefined' ) {

				$( '#'+ galleryID ).not('.slick-initialized').slick({
					arrows: false,
					dots: true,
					adaptiveHeight: true,
					fade: true,
					slidesToShow: 1,
					slidesToScroll: 1,
					autoplay: true,
					autoplaySpeed: 5000,
					dotsClass: 'atlantic-slick-dots'
				});

			}
		});

	}

    function do__equalHeight( parentEl, childEl ) {

		$( parentEl ).each(function(){

	        var highestBox = 0;

	        $(this).find( childEl ).each(function(){
	            $(this).css('height','auto');
	            if($(this).height() > highestBox){
	                highestBox = $(this).height();
	            }
	        });

	        $(this).find( childEl ).height(highestBox);

	    });

    }

	$( document ).ready( function() {

		if ( true === supportsInlineSVG() ) {
			document.documentElement.className = document.documentElement.className.replace( /(\s*)no-svg(\s*)/, '$1svg$2' );
		}

		$subMenu.before( '<button class="sub-menu-toggle" role="button" aria-expanded="false">' + Atlanticl10n.expandMenu + Atlanticl10n.collapseMenu + Atlanticl10n.subNav + '</button>' );
		$( '.sub-menu-toggle' ).on( 'click', function( e ) {

			e.preventDefault();

			var $this = $( this );
			$this.attr( 'aria-expanded', function( index, value ) {
				return 'false' === value ? 'true' : 'false';
			});

			// Add class to toggled menu
			$this.toggleClass( 'toggled' );
			$this.next( '.sub-menu' ).slideToggle( 0 );

		});

		// Wrap table with div
		$table.wrap( '<div class="table-responsive"></div>' );

		runFitVids();

		smoothScroll();

		$masonryEntry.masonry({
			itemSelector: '.entry',
			columnWidth: '.entry'
		});

		$masonryWidget.masonry({
			itemSelector: '.widget',
			columnWidth: '.widget'
		});

		$(window).scroll(function () {
		    if ($(this).scrollTop() > 500) {
		        $returnTop.removeClass('off').addClass('on');
		    }
		    else {
		        $returnTop.removeClass('on').addClass('off');
		    }
		});

	});

	$( window ).load(function(){
		slick__entry_gallery();
        $masonryEntry.masonry( 'reloadItems' );
        $masonryEntry.masonry( 'layout' );
        $masonryWidget.masonry( 'reloadItems' );
        $masonryWidget.masonry( 'layout' );
        do__equalHeight( '.products', '.product' );
	});

	$( document ).ajaxComplete(function(){
        $masonryWidget.masonry( 'reloadItems' );
        $masonryWidget.masonry( 'layout' );
		do__equalHeight( '.products', '.product' );
	});

    $( window ).resize(function() {
		do__equalHeight( '.products', '.product' );
	});

	$( document.body ).on( 'post-load', function () {
		runFitVids();
	});

	$( document.body ).on( 'afterChange', function () {
        $masonryEntry.masonry( 'reloadItems' );
        $masonryEntry.masonry( 'layout' );
	});

} )( jQuery );