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[adriangregory]

Hello

On my site http://www.portsmouthmusicacademy.co.uk/cms I’m using anchor links on some pages but when I click the anchor link the page scrolls too far down and you can’t see the start of the section. I think this is due to having a fixed top bar as it only occurs on desktop view. Is there any way around this? I’ve read several similar cases on the forum but can’t find a definitive answer that works.

Look forward to hearing from you.

Thanks

[Paul R]

Hi,

To Fix it, you can add this under Custom > Edit Global JS in the Customizer.

jQuery(document).ready(function($) {
  $('a[href*="#"]').off('touchend click');
  var $body                = $('body');
  var bodyHeight           = $body.outerHeight();
  var adminbarHeight       = $('#wpadminbar').outerHeight();
  var navbarFixedTopHeight = $('.x-navbar-fixed-top-active .x-navbar').outerHeight();
  var logobarFixedTopHeight = $('.x-logobar').outerHeight();
  var locHref              = location.href;
  var locHashIndex         = locHref.indexOf('#');
  var locHash              = locHref.substr(locHashIndex);
  var dragging             = false;
  
  $body.on('touchmove', function() {
	  dragging = true;
  } );
  
  $body.on('touchstart', function() {
	  dragging = false;
  } );

  //
  // Calculate the offset height for various elements and remove it from
  // the element's top offset so that fixed elements don't cover it up.
  //

  function animateOffset( element, ms, easing ) {
    $('html, body').animate({
      scrollTop: $(element).offset().top - adminbarHeight - navbarFixedTopHeight - logobarFixedTopHeight + 1
    }, ms, easing);
  }

  //
  // Page load offset (if necessary).
  //

  $(window).load(function() {
    if ( locHashIndex !== -1 && $(locHash).length ) {
      animateOffset(locHash, 1, 'linear');
    }
  });

  //
  // Scroll trigger.
  //

  $('a[href*="#"]').on('touchend click', function(e) {
    href        = $(this).attr('href');
    notComments = href.indexOf('#comments') === -1;
    if ( href !== '#' && notComments ) {
      var theId = href.split('#').pop();
      var $el   = $('#' + theId);
      if ( $el.length > 0 ) {
        e.preventDefault();
        
        if (dragging) {
	        return;
        }
        
        animateOffset($el, 850, 'easeInOutExpo');
      }
    }
  });

  //
  // Initialize scrollspy.
  //

  if ( $body.hasClass('x-one-page-navigation-active') ) {

    $body.scrollspy({
      target : '.x-nav-wrap.desktop',
      offset : adminbarHeight + navbarFixedTopHeight + logobarFixedTopHeight
    });

    //
    // Refresh scrollspy as needed.
    //

    $(window).resize(function() {
      $body.scrollspy('refresh');
    });

    var timesRun = 0;
    var interval = setInterval(function() {
      timesRun += 1;
      var newBodyHeight = $body.outerHeight();
      if ( newBodyHeight !== bodyHeight ) {
        $body.scrollspy('refresh');
      }
      if ( timesRun === 10 ) {
        clearInterval(interval);
      }
    }, 500);

  }

});

Hope that helps.

[adriangregory]

Amazing, thank you! The only thing now is that the offset is wrong on mobile/tablet screens where there isn’t a fixed top bar. Is it possible to make this code apply only to desktop screens?

[Paul R]

Hi,

Please replace the code with this.

jQuery(document).ready(function($) {
  $('a[href*="#"]').off('touchend click');
  var $body                = $('body');
  var bodyHeight           = $body.outerHeight();
  var adminbarHeight       = $('#wpadminbar').outerHeight();
  var navbarFixedTopHeight = $('.x-navbar-fixed-top-active .x-navbar').outerHeight();
  var logobarFixedTopHeight = $('.x-logobar').outerHeight();
  var locHref              = location.href;
  var locHashIndex         = locHref.indexOf('#');
  var locHash              = locHref.substr(locHashIndex);
  var dragging             = false;
  
  $body.on('touchmove', function() {
      dragging = true;
  } );
  
  $body.on('touchstart', function() {
      dragging = false;
  } );

  //
  // Calculate the offset height for various elements and remove it from
  // the element's top offset so that fixed elements don't cover it up.
  //

  function animateOffset( element, ms, easing ) {
    $('html, body').animate({
      scrollTop: $(element).offset().top - adminbarHeight - navbarFixedTopHeight - logobarFixedTopHeight + 1
    }, ms, easing);
  }
  function animatemobileOffset( element, ms, easing ) {
    $('html, body').animate({
      scrollTop: $(element).offset().top - adminbarHeight  + 1
    }, ms, easing);
  }
  //
  // Page load offset (if necessary).
  //

  $(window).load(function() {
    if ( locHashIndex !== -1 && $(locHash).length ) {
      animateOffset(locHash, 1, 'linear');
    }
  });

  //
  // Scroll trigger.
  //

  $('.x-nav-wrap.desktop a[href*="#"]').on('touchend click', function(e) {
    href        = $(this).attr('href');
    notComments = href.indexOf('#comments') === -1;
    if ( href !== '#' && notComments ) {
      var theId = href.split('#').pop();
      var $el   = $('#' + theId);
      if ( $el.length > 0 ) {
        e.preventDefault();
        
        if (dragging) {
            return;
        }
        
        animateOffset($el, 850, 'easeInOutExpo');
      }
    }
  });
  
  
  $('.x-nav-wrap.mobile a[href*="#"]').on('touchend click', function(e) {
    href        = $(this).attr('href');
    notComments = href.indexOf('#comments') === -1;
    if ( href !== '#' && notComments ) {
      var theId = href.split('#').pop();
      var $el   = $('#' + theId);
      if ( $el.length > 0 ) {
        e.preventDefault();
        
        if (dragging) {
            return;
        }
        
        animatemobileOffset($el, 850, 'easeInOutExpo');
      }
    }
  });

  //
  // Initialize scrollspy.
  //

  if ( $body.hasClass('x-one-page-navigation-active') ) {

    $body.scrollspy({
      target : '.x-nav-wrap.desktop',
      offset : adminbarHeight + navbarFixedTopHeight + logobarFixedTopHeight
    });

    //
    // Refresh scrollspy as needed.
    //

    $(window).resize(function() {
      $body.scrollspy('refresh');
    });

    var timesRun = 0;
    var interval = setInterval(function() {
      timesRun += 1;
      var newBodyHeight = $body.outerHeight();
      if ( newBodyHeight !== bodyHeight ) {
        $body.scrollspy('refresh');
      }
      if ( timesRun === 10 ) {
        clearInterval(interval);
      }
    }, 500);

  }

});

Hope that helps.

[adriangregory]

Yeah that’s great, thank you. How can I get this to apply to all pages on the site? The code works fine for the index page but not for other pages.

Thank you

[Joao]

Hi There,

Try going to the internal pages and clicking Edit Page > Select the main menu as One page navigation menu on each page.

Let us know how it goes,

Joao

[Author]

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