// ----------------------------------------------------------------------------------------------------
// ScrollMe
// A jQuery plugin for adding simple scrolling effects to web pages
// http://scrollme.nckprsn.com
// ----------------------------------------------------------------------------------------------------
var scrollme = (function (a) {
  var d = {};
  var c = a(document);
  var b = a(window);
  d.body_height = 0;
  d.viewport_height = 0;
  d.viewport_top = 0;
  d.viewport_bottom = 0;
  d.viewport_top_previous = -1;
  d.elements = [];
  d.elements_in_view = [];
  d.property_defaults = {
    opacity: 1,
    translatex: 0,
    translatey: 0,
    translatez: 0,
    rotatex: 0,
    rotatey: 0,
    rotatez: 0,
    scale: 1,
    scalex: 1,
    scaley: 1,
    scalez: 1,
  };
  d.scrollme_selector = ".scrollme";
  d.animateme_selector = ".animateme";
  d.update_interval = 10;
  d.easing_functions = {
    linear: function (e) {
      return e;
    },
    easeout: function (e) {
      return e * e * e;
    },
    easein: function (e) {
      e = 1 - e;
      return 1 - e * e * e;
    },
    easeinout: function (e) {
      if (e < 0.5) {
        return 4 * e * e * e;
      } else {
        e = 1 - e;
        return 1 - 4 * e * e * e;
      }
    },
  };
  d.init_events = ["ready", "page:load", "page:change"];
  d.init_if = function () {
    return true;
  };
  d.init = function () {
    if (!d.init_if()) {
      return false;
    }
    d.init_elements();
    d.on_resize();
    b.on("resize orientationchange", function () {
      d.on_resize();
    });
    b.load(function () {
      setTimeout(function () {
        d.on_resize();
      }, 100);
    });
    setInterval(d.update, d.update_interval);
    return true;
  };
  d.init_elements = function () {
    a(d.scrollme_selector).each(function () {
      var e = {};
      e.element = a(this);
      var f = [];
      a(this)
        .find(d.animateme_selector)
        .addBack(d.animateme_selector)
        .each(function () {
          var h = {};
          h.element = a(this);
          h.when = h.element.data("when");
          h.from = h.element.data("from");
          h.to = h.element.data("to");
          if (h.element.is("[data-crop]")) {
            h.crop = h.element.data("crop");
          } else {
            h.crop = true;
          }
          if (h.element.is("[data-easing]")) {
            h.easing = d.easing_functions[h.element.data("easing")];
          } else {
            h.easing = d.easing_functions.easeout;
          }
          var g = {};
          if (h.element.is("[data-opacity]")) {
            g.opacity = h.element.data("opacity");
          }
          if (h.element.is("[data-translatex]")) {
            g.translatex = h.element.data("translatex");
          }
          if (h.element.is("[data-translatey]")) {
            g.translatey = h.element.data("translatey");
          }
          if (h.element.is("[data-translatez]")) {
            g.translatez = h.element.data("translatez");
          }
          if (h.element.is("[data-rotatex]")) {
            g.rotatex = h.element.data("rotatex");
          }
          if (h.element.is("[data-rotatey]")) {
            g.rotatey = h.element.data("rotatey");
          }
          if (h.element.is("[data-rotatez]")) {
            g.rotatez = h.element.data("rotatez");
          }
          if (h.element.is("[data-scale]")) {
            g.scale = h.element.data("scale");
          }
          if (h.element.is("[data-scalex]")) {
            g.scalex = h.element.data("scalex");
          }
          if (h.element.is("[data-scaley]")) {
            g.scaley = h.element.data("scaley");
          }
          if (h.element.is("[data-scalez]")) {
            g.scalez = h.element.data("scalez");
          }
          h.properties = g;
          f.push(h);
        });
      e.effects = f;
      d.elements.push(e);
    });
  };
  d.update = function () {
    window.requestAnimationFrame(function () {
      d.update_viewport_position();
      if (d.viewport_top_previous != d.viewport_top) {
        d.update_elements_in_view();
        d.animate();
      }
      d.viewport_top_previous = d.viewport_top;
    });
  };
  d.animate = function () {
    var C = d.elements_in_view.length;
    for (var A = 0; A < C; A++) {
      var h = d.elements_in_view[A];
      var f = h.effects.length;
      for (var D = 0; D < f; D++) {
        var w = h.effects[D];
        switch (w.when) {
          case "view":
          case "span":
            var r = h.top - d.viewport_height;
            var n = h.bottom;
            break;
          case "exit":
            var r = h.bottom - d.viewport_height;
            var n = h.bottom;
            break;
          default:
            var r = h.top - d.viewport_height;
            var n = h.top;
            break;
        }
        if (w.crop) {
          if (r < 0) {
            r = 0;
          }
          if (n > d.body_height - d.viewport_height) {
            n = d.body_height - d.viewport_height;
          }
        }
        var g = (d.viewport_top - r) / (n - r);
        var x = w.from;
        var j = w.to;
        var o = j - x;
        var k = (g - x) / o;
        var v = w.easing(k);
        var l = d.animate_value(g, v, x, j, w, "opacity");
        var t = d.animate_value(g, v, x, j, w, "translatey");
        var u = d.animate_value(g, v, x, j, w, "translatex");
        var s = d.animate_value(g, v, x, j, w, "translatez");
        var B = d.animate_value(g, v, x, j, w, "rotatex");
        var z = d.animate_value(g, v, x, j, w, "rotatey");
        var y = d.animate_value(g, v, x, j, w, "rotatez");
        var E = d.animate_value(g, v, x, j, w, "scale");
        var q = d.animate_value(g, v, x, j, w, "scalex");
        var p = d.animate_value(g, v, x, j, w, "scaley");
        var m = d.animate_value(g, v, x, j, w, "scalez");
        if ("scale" in w.properties) {
          q = E;
          p = E;
          m = E;
        }
        w.element.css({
          opacity: l,
          transform:
            "translate3d( " +
            u +
            "px , " +
            t +
            "px , " +
            s +
            "px ) rotateX( " +
            B +
            "deg ) rotateY( " +
            z +
            "deg ) rotateZ( " +
            y +
            "deg ) scale3d( " +
            q +
            " , " +
            p +
            " , " +
            m +
            " )",
        });
      }
    }
  };
  d.animate_value = function (i, h, j, k, n, m) {
    var g = d.property_defaults[m];
    if (!(m in n.properties)) {
      return g;
    }
    var e = n.properties[m];
    var f = k > j ? true : false;
    if (i < j && f) {
      return g;
    }
    if (i > k && f) {
      return e;
    }
    if (i > j && !f) {
      return g;
    }
    if (i < k && !f) {
      return e;
    }
    var l = g + h * (e - g);
    switch (m) {
      case "opacity":
        l = l.toFixed(2);
        break;
      case "translatex":
        l = l.toFixed(0);
        break;
      case "translatey":
        l = l.toFixed(0);
        break;
      case "translatez":
        l = l.toFixed(0);
        break;
      case "rotatex":
        l = l.toFixed(1);
        break;
      case "rotatey":
        l = l.toFixed(1);
        break;
      case "rotatez":
        l = l.toFixed(1);
        break;
      case "scale":
        l = l.toFixed(3);
        break;
      default:
        break;
    }
    return l;
  };
  d.update_viewport_position = function () {
    d.viewport_top = b.scrollTop();
    d.viewport_bottom = d.viewport_top + d.viewport_height;
  };
  d.update_elements_in_view = function () {
    d.elements_in_view = [];
    var f = d.elements.length;
    for (var e = 0; e < f; e++) {
      if (
        d.elements[e].top < d.viewport_bottom &&
        d.elements[e].bottom > d.viewport_top
      ) {
        d.elements_in_view.push(d.elements[e]);
      }
    }
  };
  d.on_resize = function () {
    d.update_viewport();
    d.update_element_heights();
    d.update_viewport_position();
    d.update_elements_in_view();
    d.animate();
  };
  d.update_viewport = function () {
    d.body_height = c.height();
    d.viewport_height = b.height();
  };
  d.update_element_heights = function () {
    var g = d.elements.length;
    for (var f = 0; f < g; f++) {
      var h = d.elements[f].element.outerHeight();
      var e = d.elements[f].element.offset();
      d.elements[f].height = h;
      d.elements[f].top = e.top;
      d.elements[f].bottom = e.top + h;
    }
  };
  c.on(d.init_events.join(" "), function () {
    d.init();
  });
  return d;
})(jQuery);