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/**
* navigation.js
*
* Handles toggling the navigation menu for small screens.
*/
( function () {
var container, button, menu, links, i, len;
container = document.getElementById( 'site-navigation' );
if ( ! container ) {
return;
}
button = container.getElementsByClassName( 'menu-toggle' )[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;
}
if ( - 1 === menu.className.indexOf( 'nav-menu' ) ) {
menu.className += ' nav-menu';
}
button.onclick = function () {
if ( - 1 !== container.className.indexOf( 'main-small-navigation' ) ) {
container.className = container.className.replace( 'main-small-navigation', 'main-navigation' );
} else {
container.className = container.className.replace( 'main-navigation', 'main-small-navigation' );
}
};
// 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;
}
}
} )();
// Show Submenu on click on touch enabled deviced
( function () {
var container;
container = document.getElementById( 'site-navigation' );
/**
* 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 ) && ( window.matchMedia( "( min-width: 768px ) " ).matches ) ) {
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 ) );
} )();
/**
* Fix: Menu out of view port
*/
( function () {
var subMenu;
jQuery( '.main-navigation ul li.menu-item-has-children a, .main-navigation ul li.page_item_has_children a' ).on( {
'mouseover touchstart' : function () {
function isElementInViewport( subMenu ) {
if ( 'function' === typeof jQuery && subMenu instanceof jQuery ) {
subMenu = subMenu[0];
}
// In case browser doesn't support getBoundingClientRect function.
if ( 'function' === typeof subMenu.getBoundingClientRect ) {
var rect = subMenu.getBoundingClientRect();
if ( rect.right + 2 > ( window.innerWidth || document.documentElement.clientWidth ) ) {
return 'spacious-menu--left'; // menu goes out of viewport from right.
} else if ( rect.left < 0 ) {
return 'spacious-menu--right'; // menu goes out of viewport from left.
} else {
return false;
}
}
}
subMenu = jQuery( this ).next( '.sub-menu, .children' );
// If menu item has submenu
if ( subMenu.length > 0 ) {
var viewportClass = isElementInViewport( subMenu );
if ( false !== viewportClass ) {
subMenu.addClass( viewportClass );
}
}
}
} );
} )();
/**
* Keep menu items on one line.
*/
(
function () {
jQuery( document ).ready( function () {
// Get required elements.
var mainWrapper = document.querySelector( '#header-text-nav-container .inner-wrap' ),
branding = document.getElementById( 'header-left-section' ),
headerAction = document.querySelector( '.header-action' ),
navigation = document.getElementById( 'site-navigation' ),
mainWidth = mainWrapper ? mainWrapper.offsetWidth : 0,
brandWidth = branding ? branding.offsetWidth : 0,
navWidth = navigation ? navigation.offsetWidth : 0,
headerActionWidth = headerAction ? headerAction.offsetWidth: 0,
isExtra = ( brandWidth + navWidth + headerActionWidth ) > mainWidth,
more = navigation ? navigation.getElementsByClassName( 'tg-menu-extras-wrap' )[0] : '',
headerDisplayTypeFour = document.getElementsByClassName( 'spacious-header-display-four' )[0];
// Check for header style 4.
if ( headerDisplayTypeFour ) {
isExtra = ( navWidth + headerActionWidth ) >= mainWidth;
}
// Return if no excess menu items.
if ( ! navigation.classList.contains( 'tg-extra-menus' ) ) {
return;
}
function Dimension( el ) {
var elWidth;
if ( document.all ) {// IE.
elWidth = el.currentStyle.width + parseInt( el.currentStyle.marginLeft, 10 ) + parseInt( el.currentStyle.marginRight, 10 ) + parseInt( el.currentStyle.paddingLeft, 10 ) + parseInt( el.currentStyle.paddingRight, 10 );
} else {
elWidth = parseInt( document.defaultView.getComputedStyle( el, '' ).getPropertyValue( 'width' ) ) + parseInt( document.defaultView.getComputedStyle( el, '' ).getPropertyValue( 'margin-left' ) ) + parseInt( document.defaultView.getComputedStyle( el, '' ).getPropertyValue( 'margin-right' ) );
}
return elWidth;
}
// If menu excesses.
if ( ! isExtra ) {
more.parentNode.removeChild( more );
} else {
var widthToBe, buttons, buttonWidth, moreWidth;
widthToBe = mainWidth - headerActionWidth;
if ( ! headerDisplayTypeFour ) {
widthToBe = widthToBe - brandWidth;
}
buttons = navigation.getElementsByClassName( 'tg-header-button-wrap' )[0];
buttonWidth = buttons ? Dimension( buttons ) : 0;
moreWidth = more ? Dimension( more ) : 0;
newNavWidth = widthToBe - ( buttonWidth + moreWidth );
navigation.style.visibility = 'none';
navigation.style.width = newNavWidth + 'px';
// Returns first children of a node.
function getChildNodes( node ) {
var children = [];
for ( var child in node.childNodes ) {
if ( typeof node !== 'undefined' ) {
if ( 1 === node.childNodes[child].nodeType ) {
children.push( node.childNodes[child] );
}
}
}
return children;
}
var navUl = navigation.getElementsByClassName( 'nav-menu' )[0],
navLi = getChildNodes( navUl ); // Get lis.
function offset( el ) {
var rect = el.getBoundingClientRect(),
scrollLeft = window.pageXOffset || document.documentElement.scrollLeft,
scrollTop = window.pageYOffset || document.documentElement.scrollTop;
return { top : rect.top + scrollTop, left : rect.left + scrollLeft }
}
var extraLi = [];
for ( var liCount = 0; liCount < navLi.length; liCount ++ ) {
var initialPos, li, posTop;
li = navLi[liCount];
posTop = offset( li ).top;
if ( 0 === liCount ) {
initialPos = posTop;
}
if ( posTop > initialPos ) {
if ( ! li.classList.contains( 'header-action' ) && ! li.classList.contains( 'tg-menu-extras-wrap' ) && ! li.classList.contains( 'tg-header-button-wrap' ) ) {
extraLi.push( li );
}
}
}
var newNavWidth = newNavWidth + ( buttonWidth + moreWidth ),
extraWrap = document.getElementById( 'tg-menu-extras' );
if ( ! headerDisplayTypeFour ) {
newNavWidth = newNavWidth - 30;
}
navigation.style.width = newNavWidth + 'px';
if ( null !== extraWrap ) {
extraLi.forEach( function ( item, index, arr ) {
extraWrap.appendChild( item );
} );
}
}
} );
}()
);