// modal
!(function () {
  'use strict';

  var findModals = function (target) {
    var i;
    var modals = document.querySelectorAll('a');

    for (; target && target !== document; target = target.parentNode) {
      for (i = modals.length; i--;) {
        if (modals[i] === target) {
          return target;
        }
      }
    }
  };

  var getModal = function (event) {
    var modalToggle = findModals(event.target);
    if (modalToggle && modalToggle.hash && -1 === modalToggle.hash.indexOf('/')) {
      return document.querySelector(modalToggle.hash);
    }
  };

  window.addEventListener('touchend', function (event) {
    var modal = getModal(event);
    if (modal) {
      if (modal && modal.classList.contains('modal')) {
        modal.classList.toggle('active');
      }
      event.preventDefault(); // prevents rewriting url (apps can still use hash values in url)
    }
  });
}());
// popover
!(function () {
  'use strict';

  var popover;

  var findPopovers = function (target) {
    var i;
    var popovers = document.querySelectorAll('a');

    for (; target && target !== document; target = target.parentNode) {
      for (i = popovers.length; i--;) {
        if (popovers[i] === target) {
          return target;
        }
      }
    }
  };

  var onPopoverHidden = function () {
    popover.style.display = 'none';
    popover.removeEventListener('webkitTransitionEnd', onPopoverHidden);
  };

    // HACK to hide programatically
  var hide = function(e){
      e.preventDefault()
      e.stopPropagation()
      popover.addEventListener('webkitTransitionEnd', onPopoverHidden);
      popover.classList.remove('visible');
      popover.parentNode.removeChild(backdrop);
  };

  var backdrop = (function () {
    var element = document.createElement('div');

    element.classList.add('backdrop');

    element.addEventListener('click', hide, false);

    return element;
  }());

  var getPopover = function (e) {
    var anchor = findPopovers(e.target);

    if (!anchor || !anchor.hash || (anchor.hash.indexOf('/') > 0)) {
      return;
    }

    try {
      popover = document.querySelector(anchor.hash);
    } catch (error) {
      popover = null;
    }

    if (popover === null) {
      return;
    }

    if (!popover || !popover.classList.contains('popover')) {
      return;
    }

    return popover;
  };

  var showHidePopover = function (e) {
    var popover = getPopover(e);

    if (popover) {
        // if clicked fast enough, function hide may not call at all
        popover.removeEventListener('webkitTransitionEnd', onPopoverHidden);
        e.preventDefault()
        e.stopPropagation()
    }else{
        // HACK, click anyway to close existing popover
        popover = document.querySelector('.popover.visible');
        if (popover) hide(e);
      return;
    }

    popover.style.display = 'block';
    popover.offsetHeight;
    popover.classList.add('visible');

    popover.parentNode.appendChild(backdrop);
  };

  window.addEventListener('click', showHidePopover);

}());
// segmented-controllers
!(function () {
  'use strict';

  var getTarget = function (target) {
    var i;
    var segmentedControls = document.querySelectorAll('.segmented-control .control-item');

    for (; target && target !== document; target = target.parentNode) {
      for (i = segmentedControls.length; i--;) {
        if (segmentedControls[i] === target) {
          return target;
        }
      }
    }
  };

  window.addEventListener('touchend', function (e) {
    var activeTab;
    var activeBodies;
    var targetBody;
    var targetTab     = getTarget(e.target);
    var className     = 'active';
    var classSelector = '.' + className;

    if (!targetTab) {
      return;
    }

    activeTab = targetTab.parentNode.querySelector(classSelector);

    if (activeTab) {
      activeTab.classList.remove(className);
    }

    targetTab.classList.add(className);

    if (!targetTab.hash) {
      return;
    }

    targetBody = document.querySelector(targetTab.hash);

    if (!targetBody) {
      return;
    }

    activeBodies = targetBody.parentNode.querySelectorAll(classSelector);

    for (var i = 0; i < activeBodies.length; i++) {
      activeBodies[i].classList.remove(className);
    }

    targetBody.classList.add(className);
  });

  window.addEventListener('click', function (e) { if (getTarget(e.target)) {e.preventDefault();} });
}());
// slider
!(function () {
  'use strict';

  var pageX;
  var pageY;
  var slider;
  var deltaX;
  var deltaY;
  var offsetX;
  var lastSlide;
  var startTime;
  var resistance;
  var sliderWidth;
  var slideNumber;
  var isScrolling;
  var scrollableArea;

  var getSlider = function (target) {
    var i;
    var sliders = document.querySelectorAll('.slider > .slide-group');

    for (; target && target !== document; target = target.parentNode) {
      for (i = sliders.length; i--;) {
        if (sliders[i] === target) {
          return target;
        }
      }
    }
  };

  var getScroll = function () {
    if ('webkitTransform' in slider.style) {
      var translate3d = slider.style.webkitTransform.match(/translate3d\(([^,]*)/);
      var ret = translate3d ? translate3d[1] : 0;
      return parseInt(ret, 10);
    }
  };

  var setSlideNumber = function (offset) {
    var round = offset ? (deltaX < 0 ? 'ceil' : 'floor') : 'round';
    slideNumber = Math[round](getScroll() / (scrollableArea / slider.children.length));
    slideNumber += offset;
    slideNumber = Math.min(slideNumber, 0);
    slideNumber = Math.max(-(slider.children.length - 1), slideNumber);
  };

  var onTouchStart = function (e) {
    slider = getSlider(e.target);

    if (!slider) {
      return;
    }

    var firstItem  = slider.querySelector('.slide');

    scrollableArea = firstItem.offsetWidth * slider.children.length;
    isScrolling    = undefined;
    sliderWidth    = slider.offsetWidth;
    resistance     = 1;
    lastSlide      = -(slider.children.length - 1);
    startTime      = +new Date();
    pageX          = e.touches[0].pageX;
    pageY          = e.touches[0].pageY;
    deltaX         = 0;
    deltaY         = 0;

    setSlideNumber(0);

    slider.style['-webkit-transition-duration'] = 0;
  };

  var onTouchMove = function (e) {
    if (e.touches.length > 1 || !slider) {
      return; // Exit if a pinch || no slider
    }

    deltaX = e.touches[0].pageX - pageX;
    deltaY = e.touches[0].pageY - pageY;
    pageX  = e.touches[0].pageX;
    pageY  = e.touches[0].pageY;

    if (typeof isScrolling === 'undefined') {
      isScrolling = Math.abs(deltaY) > Math.abs(deltaX);
    }

    if (isScrolling) {
      return;
    }

    offsetX = (deltaX / resistance) + getScroll();

    e.preventDefault();

    resistance = slideNumber === 0         && deltaX > 0 ? (pageX / sliderWidth) + 1.25 :
                 slideNumber === lastSlide && deltaX < 0 ? (Math.abs(pageX) / sliderWidth) + 1.25 : 1;

    slider.style.webkitTransform = 'translate3d(' + offsetX + 'px,0,0)';
  };

  var onTouchEnd = function (e) {
    if (!slider || isScrolling) {
      return;
    }

    setSlideNumber(
      (+new Date()) - startTime < 1000 && Math.abs(deltaX) > 15 ? (deltaX < 0 ? -1 : 1) : 0
    );

    offsetX = slideNumber * sliderWidth;

    slider.style['-webkit-transition-duration'] = '.2s';
    slider.style.webkitTransform = 'translate3d(' + offsetX + 'px,0,0)';

    e = new CustomEvent('slide', {
      detail: { slideNumber: Math.abs(slideNumber) },
      bubbles: true,
      cancelable: true
    });

    slider.parentNode.dispatchEvent(e);
  };

  window.addEventListener('touchstart', onTouchStart);
  window.addEventListener('touchmove', onTouchMove);
  window.addEventListener('touchend', onTouchEnd);

}());
// toggle
!(function () {
  'use strict';

  var start     = {};
  var touchMove = false;
  var distanceX = false;
  var toggle    = false;

  var findToggle = function (target) {
    var i;
    var toggles = document.querySelectorAll('.toggle');

    for (; target && target !== document; target = target.parentNode) {
      for (i = toggles.length; i--;) {
        if (toggles[i] === target) {
          return target;
        }
      }
    }
  };

  window.addEventListener('touchstart', function (e) {
    e = e.originalEvent || e;

    toggle = findToggle(e.target);

    if (!toggle) {
      return;
    }

    var handle      = toggle.querySelector('.toggle-handle');
    var toggleWidth = toggle.clientWidth;
    var handleWidth = handle.clientWidth;
    var offset      = toggle.classList.contains('active') ? (toggleWidth - handleWidth) : 0;

    start     = { pageX : e.touches[0].pageX - offset, pageY : e.touches[0].pageY };
    touchMove = false;
  });

  window.addEventListener('touchmove', function (e) {
    e = e.originalEvent || e;

    if (e.touches.length > 1) {
      return; // Exit if a pinch
    }

    if (!toggle) {
      return;
    }

    var handle      = toggle.querySelector('.toggle-handle');
    var current     = e.touches[0];
    var toggleWidth = toggle.clientWidth;
    var handleWidth = handle.clientWidth;
    var offset      = toggleWidth - handleWidth;

    touchMove = true;
    distanceX = current.pageX - start.pageX;

    if (Math.abs(distanceX) < Math.abs(current.pageY - start.pageY)) {
      return;
    }

    e.preventDefault();

    if (distanceX < 0) {
      return (handle.style.webkitTransform = 'translate3d(0,0,0)');
    }
    if (distanceX > offset) {
      return (handle.style.webkitTransform = 'translate3d(' + offset + 'px,0,0)');
    }

    handle.style.webkitTransform = 'translate3d(' + distanceX + 'px,0,0)';

    toggle.classList[(distanceX > (toggleWidth / 2 - handleWidth / 2)) ? 'add' : 'remove']('active');
  });

  window.addEventListener('touchend', function (e) {
    if (!toggle) {
      return;
    }

    var handle      = toggle.querySelector('.toggle-handle');
    var toggleWidth = toggle.clientWidth;
    var handleWidth = handle.clientWidth;
    var offset      = (toggleWidth - handleWidth);
    var slideOn     = (!touchMove && !toggle.classList.contains('active')) || (touchMove && (distanceX > (toggleWidth / 2 - handleWidth / 2)));

    if (slideOn) {
      handle.style.webkitTransform = 'translate3d(' + offset + 'px,0,0)';
    } else {
      handle.style.webkitTransform = 'translate3d(0,0,0)';
    }

    toggle.classList[slideOn ? 'add' : 'remove']('active');

    e = new CustomEvent('toggle', {
      detail: { isActive: slideOn },
      bubbles: true,
      cancelable: true
    });

    toggle.dispatchEvent(e);

    touchMove = false;
    toggle    = false;
  });

}());