/**
 * navigation.js
 *
 * Handles toggling the navigation menu for small screens.
 */
( function() {
	var container, button, menu;

	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;
	}

	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', '' );
		else
			container.className += ' toggled';
	};
	
	
	// open pdf links in new tab
	$('a[href$=".pdf"]').attr('target', '_blank');
	
	// for ipad devices
	var isiPad = navigator.userAgent.match(/iPad/i) != null;
	
	if ( isiPad ) {
  	// if it is an iPad, add click event to top level navigation
  	
  	$( 'html' ).click( function() {
    	$( 'ul.nav-menu>li>a' ).removeClass( 'open' );
    });
  	
  	$( '#site-navigation' ).click( function(e) {
      e.stopPropagation();
    });
  	
  	$( 'ul.nav-menu>li.menu-item-has-children>a' ).click( function() {
    	
    	if ( $( this ).hasClass( 'open' ) ) {
    	  return true;
      } else {
        $( 'ul.nav-menu>li>a' ).removeClass( 'open' );
        $( this ).addClass( 'open' )
        return false;
      }
    
  	})
	}
} )();