Team:BIT-China/src/js/home

jQuery(document).ready(function($){ var contentSections = $('.cd-section'), navigationItems = $('#cd-vertical-nav a');

updateNavigation(); $(window).on('scroll', function(){ updateNavigation(); });

//smooth scroll to the section navigationItems.on('click', function(event){

       event.preventDefault();
       smoothScroll($(this.hash));
   });
   //smooth scroll to second section
   $('.cd-scroll-down').on('click', function(event){
       event.preventDefault();
       smoothScroll($(this.hash));
   });

   //open-close navigation on touch devices
   $('.touch .cd-nav-trigger').on('click', function(){
   	$('.touch #cd-vertical-nav').toggleClass('open');
 
   });
   //close navigation on touch devices when selectin an elemnt from the list
   $('.touch #cd-vertical-nav a').on('click', function(){
   	$('.touch #cd-vertical-nav').removeClass('open');
   });

function updateNavigation() { contentSections.each(function(){ $this = $(this); var activeSection = $('#cd-vertical-nav a[href="#'+$this.attr('id')+'"]').data('number') - 1; console.log(activeSection); if ( ( $this.offset().top - $(window).height()/2 < $(window).scrollTop() ) && ( $this.offset().top + $this.height() - $(window).height()/2 > $(window).scrollTop() ) ) { navigationItems.eq(activeSection).addClass('is-selected'); }else { navigationItems.eq(activeSection).removeClass('is-selected'); } }); }

function smoothScroll(target) {

       $('body,html').animate(
       	{'scrollTop':target.offset().top},
       	600
       );

} });