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  (factory(global.jQuery));
}(this, (function ($) { 'use strict';

$ = $ && $.hasOwnProperty('default') ? $['default'] : $;

/**
 * @author  Mudit Ameta
 * @license https://github.com/zeusdeux/isInViewport/blob/master/license.md MIT
 */

// expose isInViewport as a custom pseudo-selector
$.extend($.expr.pseudos || $.expr[':'], {
  // if $.expr.createPseudo is available, use it
  'in-viewport': $.expr.createPseudo
    ? $.expr.createPseudo(function (argsString) { return function (currElement) { return isInViewport(currElement, getSelectorArgs(argsString)); }; })
  : function (currObj, index, meta) { return isInViewport(currObj, getSelectorArgs(meta[3])); }
});


// expose isInViewport as a function too
// this lets folks pass around actual objects as options (like custom viewport)
// and doesn't tie 'em down to strings. It also prevents isInViewport from
// having to look up and wrap the dom element corresponding to the viewport selector
$.fn.isInViewport = function(options) {
  return this.filter(function (i, el) { return isInViewport(el, options); })
};

$.fn.run = run;

// lets you chain any arbitrary function or an array of functions and returns a jquery object
function run(args) {
  var this$1 = this;

  if (arguments.length === 1 && typeof args === 'function') {
    args = [args];
  }

  if (!(args instanceof Array)) {
    throw new SyntaxError('isInViewport: Argument(s) passed to .do/.run should be a function or an array of functions')
  }

  args.forEach(function (arg) {
    if (typeof arg !== 'function') {
      console.warn('isInViewport: Argument(s) passed to .do/.run should be a function or an array of functions');
      console.warn('isInViewport: Ignoring non-function values in array and moving on');
    } else {
      [].slice.call(this$1).forEach(function (t) { return arg.call($(t)); });
    }
  });

  return this
}


// gets the width of the scrollbar
function getScrollbarWidth(viewport) {
  // append a div that has 100% width to get true width of viewport
  var el = $('<div></div>').css({
    width: '100%'
  });
  viewport.append(el);

  // subtract true width from the viewport width which is inclusive
  // of scrollbar by default
  var scrollBarWidth = viewport.width() - el.width();

  // remove our element from DOM
  el.remove();
  return scrollBarWidth
}


// Returns true if DOM element `element` is in viewport
function isInViewport(element, options) {
  var ref = element.getBoundingClientRect();
  var top = ref.top;
  var bottom = ref.bottom;
  var left = ref.left;
  var right = ref.right;

  var settings = $.extend({
    tolerance: 0,
    viewport: window
  }, options);
  var isVisibleFlag = false;
  var $viewport = settings.viewport.jquery ? settings.viewport : $(settings.viewport);

  if (!$viewport.length) {
    console.warn('isInViewport: The viewport selector you have provided matches no element on page.');
    console.warn('isInViewport: Defaulting to viewport as window');
    $viewport = $(window);
  }

  var $viewportHeight = $viewport.height();
  var $viewportWidth = $viewport.width();
  var typeofViewport = $viewport[0].toString();

  // if the viewport is other than window recalculate the top,
  // bottom,left and right wrt the new viewport
  // the [object DOMWindow] check is for window object type in PhantomJS
  if ($viewport[0] !== window && typeofViewport !== '[object Window]' && typeofViewport !== '[object DOMWindow]') {
    // use getBoundingClientRect() instead of $.Offset()
    // since the original top/bottom positions are calculated relative to browser viewport and not document
    var viewportRect = $viewport[0].getBoundingClientRect();

    // recalculate these relative to viewport
    top = top - viewportRect.top;
    bottom = bottom - viewportRect.top;
    left = left - viewportRect.left;
    right = right - viewportRect.left;

    // get the scrollbar width from cache or calculate it
    isInViewport.scrollBarWidth = isInViewport.scrollBarWidth || getScrollbarWidth($viewport);

    // remove the width of the scrollbar from the viewport width
    $viewportWidth -= isInViewport.scrollBarWidth;
  }

  // handle falsy, non-number and non-integer tolerance value
  // same as checking using isNaN and then setting to 0
  // bitwise operators deserve some love too you know
  settings.tolerance = ~~Math.round(parseFloat(settings.tolerance));

  if (settings.tolerance < 0) {
    settings.tolerance = $viewportHeight + settings.tolerance; // viewport height - tol
  }

  // the element is NOT in viewport iff it is completely out of
  // viewport laterally or if it is completely out of the tolerance
  // region. Therefore, if it is partially in view then it is considered
  // to be in the viewport and hence true is returned. Because we have adjusted
  // the left/right positions relative to the viewport, we should check the
  // element's right against the viewport's 0 (left side), and the element's
  // left against the viewport's width to see if it is outside of the viewport.

  if (right <= 0 || left >= $viewportWidth) {
    return isVisibleFlag
  }

  // if the element is bound to some tolerance
  isVisibleFlag = settings.tolerance ? top <= settings.tolerance && bottom >= settings.tolerance : bottom > 0 && top <= $viewportHeight;

  return isVisibleFlag
}


// get the selector args from the args string proved by Sizzle
function getSelectorArgs(argsString) {
  if (argsString) {
    var args = argsString.split(',');

    // when user only gives viewport and no tolerance
    if (args.length === 1 && isNaN(args[0])) {
      args[1] = args[0];
      args[0] = void 0;
    }

    return {
      tolerance: args[0] ? args[0].trim() : void 0,
      viewport: args[1] ? $(args[1].trim()) : void 0
    }
  }
  return {}
}

})));

//# sourceMappingURL=isInViewport.js.map
</script>

<script src="https://cdnjs.cloudflare.com/ajax/libs/prism/1.19.0/prism.min.js"></script>
<script>
  $(document).ready(function() {
    $(document).on('scroll',function(e)
{
    $('h2[id]').each(function()
    {
        if ( $(this).offset().top < window.pageYOffset + 100 
        &&   $(this).offset().top + 
             $(this).height() > window.pageYOffset + 100
           ) 
        {

          $(this).addClass('is-active');

          var data = $(this).attr('id');

          window.location.hash = '#!' + data;

          var $location = window.location.hash.replace(/^#!/, '');

          $('.js-docs-sidebar a').each(function() {
            if($(this).attr('href').indexOf($location) > -1) {
              $(this).addClass('is-active');
            } else {
              $(this).removeClass('is-active');
            }
          });
        }

    });
});
 

  $(window).scroll(function() {
    $('.js-inviewport-item').isInViewport({
      tolerance: 0
    })
    .addClass('is-active');
  });

  var options = {
            classes: {
                clone:   'o-header__top--clone',
                stick:   'is-sticky',
                unstick: 'is-unsticky'
            }
        };
  if($(window).width() >= 767) {
    var header = new Headhesive('.js-header', options);
  }
  $('.js-navigation-open').on('click', function(event) {
    event.preventDefault();

    $('.js-navigation-list').addClass('is-active');
  });

  $('.js-navigation-close').on('click', function(event) {
    event.preventDefault();

    $('.js-navigation-list').removeClass('is-active');
  });

  $('.js-header-keyvisual').addClass('is-active');

  // Popup
  $('.js-popup').magnificPopup({
    type: 'inline',
    preloader: false,
    focus: '#name',

    // When elemened is focused, some mobile browsers in some cases zoom in
    // It looks not nice, so we disable it:
    callbacks: {
      beforeOpen: function() {
        if($(window).width() < 700) {
          this.st.focus = false;
        } else {
          this.st.focus = '#name';
        }
      }
    }
  });

  // Scroll
  $('.js-anchor-scroll').anchorScroll({
    scrollSpeed: 800, // scroll speed
    offsetTop: 100, // offset for fixed top bars (defaults to 0)
    onScroll: function () {
      // callback on scroll start
    },
    scrollEnd: function () {
      // callback on scroll end
    }
  });
});

$('.js-docs-trigger').on('click', function(event) {
  event.preventDefault();

  $('.js-docs-sidebar').addClass('is-active');
});

$('.js-docs-trigger-close').on('click', function(event) {
  event.preventDefault();

  $('.js-docs-sidebar').removeClass('is-active');
});
</script>
</body>


  </body>
</html>