ionic.js

/*!
 * Copyright 2014 Drifty Co.
 * http://drifty.com/
 *
 * Ionic, v1.0.0-beta.4
 * A powerful HTML5 mobile app framework.
 * http://ionicframework.com/
 *
 * By @maxlynch, @benjsperry, @adamdbradley <3
 *
 * Licensed under the MIT license. Please see LICENSE for more information.
 *
 */

(function() {

// Create namespaces
//
window.ionic = {
  controllers: {},
  views: {},
  version: '1.0.0-beta.4'
};

(function(ionic) {

  var bezierCoord = function (x,y) {
    if(!x) x=0;
    if(!y) y=0;
    return {x: x, y: y};
  };

  function B1(t) { return t*t*t; }
  function B2(t) { return 3*t*t*(1-t); }
  function B3(t) { return 3*t*(1-t)*(1-t); }
  function B4(t) { return (1-t)*(1-t)*(1-t); }

  ionic.Animator = {
    // Quadratic bezier solver
    getQuadraticBezier: function(percent,C1,C2,C3,C4) {
      var pos = new bezierCoord();
      pos.x = C1.x*B1(percent) + C2.x*B2(percent) + C3.x*B3(percent) + C4.x*B4(percent);
      pos.y = C1.y*B1(percent) + C2.y*B2(percent) + C3.y*B3(percent) + C4.y*B4(percent);
      return pos;
    },

    // Cubic bezier solver from https://github.com/arian/cubic-bezier (MIT)
    getCubicBezier: function(x1, y1, x2, y2, duration) {
      // Precision
      epsilon = (1000 / 60 / duration) / 4;

      var curveX = function(t){
        var v = 1 - t;
        return 3 * v * v * t * x1 + 3 * v * t * t * x2 + t * t * t;
      };

      var curveY = function(t){
        var v = 1 - t;
        return 3 * v * v * t * y1 + 3 * v * t * t * y2 + t * t * t;
      };

      var derivativeCurveX = function(t){
        var v = 1 - t;
        return 3 * (2 * (t - 1) * t + v * v) * x1 + 3 * (- t * t * t + 2 * v * t) * x2;
      };

      return function(t) {

        var x = t, t0, t1, t2, x2, d2, i;

        // First try a few iterations of Newton's method -- normally very fast.
        for (t2 = x, i = 0; i < 8; i++){
          x2 = curveX(t2) - x;
          if (Math.abs(x2) < epsilon) return curveY(t2);
          d2 = derivativeCurveX(t2);
          if (Math.abs(d2) < 1e-6) break;
          t2 = t2 - x2 / d2;
        }

        t0 = 0, t1 = 1, t2 = x;

        if (t2 < t0) return curveY(t0);
        if (t2 > t1) return curveY(t1);

        // Fallback to the bisection method for reliability.
        while (t0 < t1){
          x2 = curveX(t2);
          if (Math.abs(x2 - x) < epsilon) return curveY(t2);
          if (x > x2) t0 = t2;
          else t1 = t2;
          t2 = (t1 - t0) * 0.5 + t0;
        }

        // Failure
        return curveY(t2);
      };
    },

    animate: function(element, className, fn) {
      return {
        leave: function() {
          var endFunc = function() {

            element.classList.remove('leave');
            element.classList.remove('leave-active');

            element.removeEventListener('webkitTransitionEnd', endFunc);
            element.removeEventListener('transitionEnd', endFunc);
          };
          element.addEventListener('webkitTransitionEnd', endFunc);
          element.addEventListener('transitionEnd', endFunc);

          element.classList.add('leave');
          element.classList.add('leave-active');
          return this;
        },
        enter: function() {
          var endFunc = function() {

            element.classList.remove('enter');
            element.classList.remove('enter-active');

            element.removeEventListener('webkitTransitionEnd', endFunc);
            element.removeEventListener('transitionEnd', endFunc);
          };
          element.addEventListener('webkitTransitionEnd', endFunc);
          element.addEventListener('transitionEnd', endFunc);

          element.classList.add('enter');
          element.classList.add('enter-active');

          return this;
        }
      };
    }
  };
})(ionic);

(function(window, document, ionic) {

  var readyCallbacks = [];
  var isDomReady = false;

  function domReady() {
    isDomReady = true;
    for(var x=0; x<readyCallbacks.length; x++) {
      ionic.requestAnimationFrame(readyCallbacks[x]);
    }
    readyCallbacks = [];
    document.removeEventListener('DOMContentLoaded', domReady);
  }
  document.addEventListener('DOMContentLoaded', domReady);

  // From the man himself, Mr. Paul Irish.
  // The requestAnimationFrame polyfill
  // Put it on window just to preserve its context
  // without having to use .call
  window._rAF = (function(){
    return  window.requestAnimationFrame       ||
            window.webkitRequestAnimationFrame ||
            window.mozRequestAnimationFrame    ||
            function( callback ){
              window.setTimeout(callback, 16);
            };
  })();

  /**
  * @ngdoc utility
  * @name ionic.DomUtil
  * @module ionic
  */
  ionic.DomUtil = {
    //Call with proper context
    /**
     * @ngdoc method
     * @name ionic.DomUtil#requestAnimationFrame
     * @alias ionic.requestAnimationFrame
     * @description Calls [requestAnimationFrame](https://developer.mozilla.org/en-US/docs/Web/API/window.requestAnimationFrame), or a polyfill if not available.
     * @param {function} callback The function to call when the next frame
     * happens.
     */
    requestAnimationFrame: function(cb) {
      window._rAF(cb);
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#animationFrameThrottle
     * @alias ionic.animationFrameThrottle
     * @description
     * When given a callback, if that callback is called 100 times between
     * animation frames, adding Throttle will make it only run the last of
     * the 100 calls.
     *
     * @param {function} callback a function which will be throttled to
     * requestAnimationFrame
     * @returns {function} A function which will then call the passed in callback.
     * The passed in callback will receive the context the returned function is
     * called with.
     */
    animationFrameThrottle: function(cb) {
      var args, isQueued, context;
      return function() {
        args = arguments;
        context = this;
        if (!isQueued) {
          isQueued = true;
          ionic.requestAnimationFrame(function() {
            cb.apply(context, args);
            isQueued = false;
          });
        }
      };
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#getPositionInParent
     * @description
     * Find an element's scroll offset within its container.
     * @param {DOMElement} element The element to find the offset of.
     * @returns {object} A position object with the following properties:
     *   - `{number}` `left` The left offset of the element.
     *   - `{number}` `top` The top offset of the element.
     */
    getPositionInParent: function(el) {
      return {
        left: el.offsetLeft,
        top: el.offsetTop
      };
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#ready
     * @description
     * Call a function when the DOM is ready, or if it is already ready
     * call the function immediately.
     * @param {function} callback The function to be called.
     */
    ready: function(cb) {
      if(isDomReady || document.readyState === "complete") {
        ionic.requestAnimationFrame(cb);
      } else {
        readyCallbacks.push(cb);
      }
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#getTextBounds
     * @description
     * Get a rect representing the bounds of the given textNode.
     * @param {DOMElement} textNode The textNode to find the bounds of.
     * @returns {object} An object representing the bounds of the node. Properties:
     *   - `{number}` `left` The left positton of the textNode.
     *   - `{number}` `right` The right positton of the textNode.
     *   - `{number}` `top` The top positton of the textNode.
     *   - `{number}` `bottom` The bottom position of the textNode.
     *   - `{number}` `width` The width of the textNode.
     *   - `{number}` `height` The height of the textNode.
     */
    getTextBounds: function(textNode) {
      if(document.createRange) {
        var range = document.createRange();
        range.selectNodeContents(textNode);
        if(range.getBoundingClientRect) {
          var rect = range.getBoundingClientRect();
          if(rect) {
            var sx = window.scrollX;
            var sy = window.scrollY;

            return {
              top: rect.top + sy,
              left: rect.left + sx,
              right: rect.left + sx + rect.width,
              bottom: rect.top + sy + rect.height,
              width: rect.width,
              height: rect.height
            };
          }
        }
      }
      return null;
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#getChildIndex
     * @description
     * Get the first index of a child node within the given element of the
     * specified type.
     * @param {DOMElement} element The element to find the index of.
     * @param {string} type The nodeName to match children of element against.
     * @returns {number} The index, or -1, of a child with nodeName matching type.
     */
    getChildIndex: function(element, type) {
      if(type) {
        var ch = element.parentNode.children;
        var c;
        for(var i = 0, k = 0, j = ch.length; i < j; i++) {
          c = ch[i];
          if(c.nodeName && c.nodeName.toLowerCase() == type) {
            if(c == element) {
              return k;
            }
            k++;
          }
        }
      }
      return Array.prototype.slice.call(element.parentNode.children).indexOf(element);
    },

    /**
     * @private
     */
    swapNodes: function(src, dest) {
      dest.parentNode.insertBefore(src, dest);
    },

    /**
     * @private
     */
    centerElementByMargin: function(el) {
      el.style.marginLeft = (-el.offsetWidth) / 2 + 'px';
      el.style.marginTop = (-el.offsetHeight) / 2 + 'px';
    },
    //Center twice, after raf, to fix a bug with ios and showing elements
    //that have just been attached to the DOM.
    centerElementByMarginTwice: function(el) {
      ionic.requestAnimationFrame(function() {
        ionic.DomUtil.centerElementByMargin(el);
        ionic.requestAnimationFrame(function() {
          ionic.DomUtil.centerElementByMargin(el);
        });
      });
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#getParentWithClass
     * @param {DOMElement} element
     * @param {string} className
     * @returns {DOMElement} The closest parent of element matching the
     * className, or null.
     */
    getParentWithClass: function(e, className, depth) {
      depth = depth || 10;
      while(e.parentNode && depth--) {
        if(e.parentNode.classList && e.parentNode.classList.contains(className)) {
          return e.parentNode;
        }
        e = e.parentNode;
      }
      return null;
    },
    /**
     * @ngdoc method
     * @name ionic.DomUtil#getParentWithClass
     * @param {DOMElement} element
     * @param {string} className
     * @returns {DOMElement} The closest parent or self matching the
     * className, or null.
     */
    getParentOrSelfWithClass: function(e, className, depth) {
      depth = depth || 10;
      while(e && depth--) {
        if(e.classList && e.classList.contains(className)) {
          return e;
        }
        e = e.parentNode;
      }
      return null;
    },

    /**
     * @ngdoc method
     * @name ionic.DomUtil#rectContains
     * @param {number} x
     * @param {number} y
     * @param {number} x1
     * @param {number} y1
     * @param {number} x2
     * @param {number} y2
     * @returns {boolean} Whether {x,y} fits within the rectangle defined by
     * {x1,y1,x2,y2}.
     */
    rectContains: function(x, y, x1, y1, x2, y2) {
      if(x < x1 || x > x2) return false;
      if(y < y1 || y > y2) return false;
      return true;
    }
  };

  //Shortcuts
  ionic.requestAnimationFrame = ionic.DomUtil.requestAnimationFrame;
  ionic.animationFrameThrottle = ionic.DomUtil.animationFrameThrottle;
})(window, document, ionic);

/**
 * ion-events.js
 *
 * Author: Max Lynch <max@drifty.com>
 *
 * Framework events handles various mobile browser events, and
 * detects special events like tap/swipe/etc. and emits them
 * as custom events that can be used in an app.
 *
 * Portions lovingly adapted from github.com/maker/ratchet and github.com/alexgibson/tap.js - thanks guys!
 */

(function(ionic) {

  // Custom event polyfill
  ionic.CustomEvent = window.CustomEvent || (function() {
    var CustomEvent;
    CustomEvent = function(event, params) {
      var evt;
      params = params || {
        bubbles: false,
        cancelable: false,
        detail: undefined
      };
      try {
        evt = document.createEvent("CustomEvent");
        evt.initCustomEvent(event, params.bubbles, params.cancelable, params.detail);
      } catch (error) {
        // fallback for browsers that don't support createEvent('CustomEvent')
        evt = document.createEvent("Event");
        for (var param in params) {
          evt[param] = params[param];
        }
        evt.initEvent(event, params.bubbles, params.cancelable);
      }
      return evt;
    };
    CustomEvent.prototype = window.Event.prototype;
    return CustomEvent;
  })();


  /**
   * @ngdoc utility
   * @name ionic.EventController
   * @module ionic
   */
  ionic.EventController = {
    VIRTUALIZED_EVENTS: ['tap', 'swipe', 'swiperight', 'swipeleft', 'drag', 'hold', 'release'],

    /**
     * @ngdoc method
     * @name ionic.EventController#trigger
     * @alias ionic.trigger
     * @param {string} eventType The event to trigger.
     * @param {object} data The data for the event. Hint: pass in
     * `{target: targetElement}`
     * @param {boolean=} bubbles Whether the event should bubble up the DOM.
     * @param {boolean=} cancelable Whether the event should be cancelable.
     */
    // Trigger a new event
    trigger: function(eventType, data, bubbles, cancelable) {
      var event = new ionic.CustomEvent(eventType, {
        detail: data,
        bubbles: !!bubbles,
        cancelable: !!cancelable
      });

      // Make sure to trigger the event on the given target, or dispatch it from
      // the window if we don't have an event target
      data && data.target && data.target.dispatchEvent && data.target.dispatchEvent(event) || window.dispatchEvent(event);
    },

    /**
     * @ngdoc method
     * @name ionic.EventController#on
     * @alias ionic.on
     * @description Listen to an event on an element.
     * @param {string} type The event to listen for.
     * @param {function} callback The listener to be called.
     * @param {DOMElement} element The element to listen for the event on.
     */
    on: function(type, callback, element) {
      var e = element || window;

      // Bind a gesture if it's a virtual event
      for(var i = 0, j = this.VIRTUALIZED_EVENTS.length; i < j; i++) {
        if(type == this.VIRTUALIZED_EVENTS[i]) {
          var gesture = new ionic.Gesture(element);
          gesture.on(type, callback);
          return gesture;
        }
      }

      // Otherwise bind a normal event
      e.addEventListener(type, callback);
    },

    /**
     * @ngdoc method
     * @name ionic.EventController#off
     * @alias ionic.off
     * @description Remove an event listener.
     * @param {string} type
     * @param {function} callback
     * @param {DOMElement} element
     */
    off: function(type, callback, element) {
      element.removeEventListener(type, callback);
    },

    /**
     * @ngdoc method
     * @name ionic.EventController#onGesture
     * @alias ionic.onGesture
     * @description Add an event listener for a gesture on an element.
     *
     * Available eventTypes (from [hammer.js](http://eightmedia.github.io/hammer.js/)):
     *
     * `hold`, `tap`, `doubletap`, `drag`, `dragstart`, `dragend`, `dragup`, `dragdown`, <br/>
     * `dragleft`, `dragright`, `swipe`, `swipeup`, `swipedown`, `swipeleft`, `swiperight`, <br/>
     * `transform`, `transformstart`, `transformend`, `rotate`, `pinch`, `pinchin`, `pinchout`, </br>
     * `touch`, `release`
     *
     * @param {string} eventType The gesture event to listen for.
     * @param {function(e)} callback The function to call when the gesture
     * happens.
     * @param {DOMElement} element The angular element to listen for the event on.
     */
    onGesture: function(type, callback, element) {
      var gesture = new ionic.Gesture(element);
      gesture.on(type, callback);
      return gesture;
    },

    /**
     * @ngdoc method
     * @name ionic.EventController#offGesture
     * @alias ionic.offGesture
     * @description Remove an event listener for a gesture on an element.
     * @param {string} eventType The gesture event.
     * @param {function(e)} callback The listener that was added earlier.
     * @param {DOMElement} element The element the listener was added on.
     */
    offGesture: function(gesture, type, callback) {
      gesture.off(type, callback);
    },

    handlePopState: function(event) {
    },
  };


  // Map some convenient top-level functions for event handling
  ionic.on = function() { ionic.EventController.on.apply(ionic.EventController, arguments); };
  ionic.off = function() { ionic.EventController.off.apply(ionic.EventController, arguments); };
  ionic.trigger = ionic.EventController.trigger;//function() { ionic.EventController.trigger.apply(ionic.EventController.trigger, arguments); };
  ionic.onGesture = function() { return ionic.EventController.onGesture.apply(ionic.EventController.onGesture, arguments); };
  ionic.offGesture = function() { return ionic.EventController.offGesture.apply(ionic.EventController.offGesture, arguments); };

})(window.ionic);

/**
  * Simple gesture controllers with some common gestures that emit
  * gesture events.
  *
  * Ported from github.com/EightMedia/hammer.js Gestures - thanks!
  */
(function(ionic) {

  /**
   * ionic.Gestures
   * use this to create instances
   * @param   {HTMLElement}   element
   * @param   {Object}        options
   * @returns {ionic.Gestures.Instance}
   * @constructor
   */
  ionic.Gesture = function(element, options) {
    return new ionic.Gestures.Instance(element, options || {});
  };

  ionic.Gestures = {};

  // default settings
  ionic.Gestures.defaults = {
    // add css to the element to prevent the browser from doing
    // its native behavior. this doesnt prevent the scrolling,
    // but cancels the contextmenu, tap highlighting etc
    // set to false to disable this
    stop_browser_behavior: 'disable-user-behavior'
  };

  // detect touchevents
  ionic.Gestures.HAS_POINTEREVENTS = window.navigator.pointerEnabled || window.navigator.msPointerEnabled;
  ionic.Gestures.HAS_TOUCHEVENTS = ('ontouchstart' in window);

  // dont use mouseevents on mobile devices
  ionic.Gestures.MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android|silk/i;
  ionic.Gestures.NO_MOUSEEVENTS = ionic.Gestures.HAS_TOUCHEVENTS && window.navigator.userAgent.match(ionic.Gestures.MOBILE_REGEX);

  // eventtypes per touchevent (start, move, end)
  // are filled by ionic.Gestures.event.determineEventTypes on setup
  ionic.Gestures.EVENT_TYPES = {};

  // direction defines
  ionic.Gestures.DIRECTION_DOWN = 'down';
  ionic.Gestures.DIRECTION_LEFT = 'left';
  ionic.Gestures.DIRECTION_UP = 'up';
  ionic.Gestures.DIRECTION_RIGHT = 'right';

  // pointer type
  ionic.Gestures.POINTER_MOUSE = 'mouse';
  ionic.Gestures.POINTER_TOUCH = 'touch';
  ionic.Gestures.POINTER_PEN = 'pen';

  // touch event defines
  ionic.Gestures.EVENT_START = 'start';
  ionic.Gestures.EVENT_MOVE = 'move';
  ionic.Gestures.EVENT_END = 'end';

  // hammer document where the base events are added at
  ionic.Gestures.DOCUMENT = window.document;

  // plugins namespace
  ionic.Gestures.plugins = {};

  // if the window events are set...
  ionic.Gestures.READY = false;

  /**
   * setup events to detect gestures on the document
   */
  function setup() {
    if(ionic.Gestures.READY) {
      return;
    }

    // find what eventtypes we add listeners to
    ionic.Gestures.event.determineEventTypes();

    // Register all gestures inside ionic.Gestures.gestures
    for(var name in ionic.Gestures.gestures) {
      if(ionic.Gestures.gestures.hasOwnProperty(name)) {
        ionic.Gestures.detection.register(ionic.Gestures.gestures[name]);
      }
    }

    // Add touch events on the document
    ionic.Gestures.event.onTouch(ionic.Gestures.DOCUMENT, ionic.Gestures.EVENT_MOVE, ionic.Gestures.detection.detect);
    ionic.Gestures.event.onTouch(ionic.Gestures.DOCUMENT, ionic.Gestures.EVENT_END, ionic.Gestures.detection.detect);

    // ionic.Gestures is ready...!
    ionic.Gestures.READY = true;
  }

  /**
   * create new hammer instance
   * all methods should return the instance itself, so it is chainable.
   * @param   {HTMLElement}       element
   * @param   {Object}            [options={}]
   * @returns {ionic.Gestures.Instance}
   * @name Gesture.Instance
   * @constructor
   */
  ionic.Gestures.Instance = function(element, options) {
    var self = this;

    // A null element was passed into the instance, which means
    // whatever lookup was done to find this element failed to find it
    // so we can't listen for events on it.
    if(element === null) {
      void 0;
      return;
    }

    // setup ionic.GesturesJS window events and register all gestures
    // this also sets up the default options
    setup();

    this.element = element;

    // start/stop detection option
    this.enabled = true;

    // merge options
    this.options = ionic.Gestures.utils.extend(
        ionic.Gestures.utils.extend({}, ionic.Gestures.defaults),
        options || {});

    // add some css to the element to prevent the browser from doing its native behavoir
    if(this.options.stop_browser_behavior) {
      ionic.Gestures.utils.stopDefaultBrowserBehavior(this.element, this.options.stop_browser_behavior);
    }

    // start detection on touchstart
    ionic.Gestures.event.onTouch(element, ionic.Gestures.EVENT_START, function(ev) {
      if(self.enabled) {
        ionic.Gestures.detection.startDetect(self, ev);
      }
    });

    // return instance
    return this;
  };


  ionic.Gestures.Instance.prototype = {
    /**
     * bind events to the instance
     * @param   {String}      gesture
     * @param   {Function}    handler
     * @returns {ionic.Gestures.Instance}
     */
    on: function onEvent(gesture, handler){
      var gestures = gesture.split(' ');
      for(var t=0; t<gestures.length; t++) {
        this.element.addEventListener(gestures[t], handler, false);
      }
      return this;
    },


    /**
     * unbind events to the instance
     * @param   {String}      gesture
     * @param   {Function}    handler
     * @returns {ionic.Gestures.Instance}
     */
    off: function offEvent(gesture, handler){
      var gestures = gesture.split(' ');
      for(var t=0; t<gestures.length; t++) {
        this.element.removeEventListener(gestures[t], handler, false);
      }
      return this;
    },


    /**
     * trigger gesture event
     * @param   {String}      gesture
     * @param   {Object}      eventData
     * @returns {ionic.Gestures.Instance}
     */
    trigger: function triggerEvent(gesture, eventData){
      // create DOM event
      var event = ionic.Gestures.DOCUMENT.createEvent('Event');
      event.initEvent(gesture, true, true);
      event.gesture = eventData;

      // trigger on the target if it is in the instance element,
      // this is for event delegation tricks
      var element = this.element;
      if(ionic.Gestures.utils.hasParent(eventData.target, element)) {
        element = eventData.target;
      }

      element.dispatchEvent(event);
      return this;
    },


    /**
     * enable of disable hammer.js detection
     * @param   {Boolean}   state
     * @returns {ionic.Gestures.Instance}
     */
    enable: function enable(state) {
      this.enabled = state;
      return this;
    }
  };

  /**
   * this holds the last move event,
   * used to fix empty touchend issue
   * see the onTouch event for an explanation
   * type {Object}
   */
  var last_move_event = null;


  /**
   * when the mouse is hold down, this is true
   * type {Boolean}
   */
  var enable_detect = false;


  /**
   * when touch events have been fired, this is true
   * type {Boolean}
   */
  var touch_triggered = false;


  ionic.Gestures.event = {
    /**
     * simple addEventListener
     * @param   {HTMLElement}   element
     * @param   {String}        type
     * @param   {Function}      handler
     */
    bindDom: function(element, type, handler) {
      var types = type.split(' ');
      for(var t=0; t<types.length; t++) {
        element.addEventListener(types[t], handler, false);
      }
    },


    /**
     * touch events with mouse fallback
     * @param   {HTMLElement}   element
     * @param   {String}        eventType        like ionic.Gestures.EVENT_MOVE
     * @param   {Function}      handler
     */
    onTouch: function onTouch(element, eventType, handler) {
      var self = this;

      this.bindDom(element, ionic.Gestures.EVENT_TYPES[eventType], function bindDomOnTouch(ev) {
        var sourceEventType = ev.type.toLowerCase();

        // onmouseup, but when touchend has been fired we do nothing.
        // this is for touchdevices which also fire a mouseup on touchend
        if(sourceEventType.match(/mouse/) && touch_triggered) {
          return;
        }

        // mousebutton must be down or a touch event
        else if( sourceEventType.match(/touch/) ||   // touch events are always on screen
          sourceEventType.match(/pointerdown/) || // pointerevents touch
          (sourceEventType.match(/mouse/) && ev.which === 1)   // mouse is pressed
          ){
            enable_detect = true;
          }

        // mouse isn't pressed
        else if(sourceEventType.match(/mouse/) && ev.which !== 1) {
          enable_detect = false;
        }


        // we are in a touch event, set the touch triggered bool to true,
        // this for the conflicts that may occur on ios and android
        if(sourceEventType.match(/touch|pointer/)) {
          touch_triggered = true;
        }

        // count the total touches on the screen
        var count_touches = 0;

        // when touch has been triggered in this detection session
        // and we are now handling a mouse event, we stop that to prevent conflicts
        if(enable_detect) {
          // update pointerevent
          if(ionic.Gestures.HAS_POINTEREVENTS && eventType != ionic.Gestures.EVENT_END) {
            count_touches = ionic.Gestures.PointerEvent.updatePointer(eventType, ev);
          }
          // touch
          else if(sourceEventType.match(/touch/)) {
            count_touches = ev.touches.length;
          }
          // mouse
          else if(!touch_triggered) {
            count_touches = sourceEventType.match(/up/) ? 0 : 1;
          }

          // if we are in a end event, but when we remove one touch and
          // we still have enough, set eventType to move
          if(count_touches > 0 && eventType == ionic.Gestures.EVENT_END) {
            eventType = ionic.Gestures.EVENT_MOVE;
          }
          // no touches, force the end event
          else if(!count_touches) {
            eventType = ionic.Gestures.EVENT_END;
          }

          // store the last move event
          if(count_touches || last_move_event === null) {
            last_move_event = ev;
          }

          // trigger the handler
          handler.call(ionic.Gestures.detection, self.collectEventData(element, eventType, self.getTouchList(last_move_event, eventType), ev));

          // remove pointerevent from list
          if(ionic.Gestures.HAS_POINTEREVENTS && eventType == ionic.Gestures.EVENT_END) {
            count_touches = ionic.Gestures.PointerEvent.updatePointer(eventType, ev);
          }
        }

        //debug(sourceEventType +" "+ eventType);

        // on the end we reset everything
        if(!count_touches) {
          last_move_event = null;
          enable_detect = false;
          touch_triggered = false;
          ionic.Gestures.PointerEvent.reset();
        }
      });
    },


    /**
     * we have different events for each device/browser
     * determine what we need and set them in the ionic.Gestures.EVENT_TYPES constant
     */
    determineEventTypes: function determineEventTypes() {
      // determine the eventtype we want to set
      var types;

      // pointerEvents magic
      if(ionic.Gestures.HAS_POINTEREVENTS) {
        types = ionic.Gestures.PointerEvent.getEvents();
      }
      // on Android, iOS, blackberry, windows mobile we dont want any mouseevents
      else if(ionic.Gestures.NO_MOUSEEVENTS) {
        types = [
          'touchstart',
          'touchmove',
          'touchend touchcancel'];
      }
      // for non pointer events browsers and mixed browsers,
      // like chrome on windows8 touch laptop
      else {
        types = [
          'touchstart mousedown',
          'touchmove mousemove',
          'touchend touchcancel mouseup'];
      }

      ionic.Gestures.EVENT_TYPES[ionic.Gestures.EVENT_START]  = types[0];
      ionic.Gestures.EVENT_TYPES[ionic.Gestures.EVENT_MOVE]   = types[1];
      ionic.Gestures.EVENT_TYPES[ionic.Gestures.EVENT_END]    = types[2];
    },


    /**
     * create touchlist depending on the event
     * @param   {Object}    ev
     * @param   {String}    eventType   used by the fakemultitouch plugin
     */
    getTouchList: function getTouchList(ev/*, eventType*/) {
      // get the fake pointerEvent touchlist
      if(ionic.Gestures.HAS_POINTEREVENTS) {
        return ionic.Gestures.PointerEvent.getTouchList();
      }
      // get the touchlist
      else if(ev.touches) {
        return ev.touches;
      }
      // make fake touchlist from mouse position
      else {
        ev.indentifier = 1;
        return [ev];
      }
    },


    /**
     * collect event data for ionic.Gestures js
     * @param   {HTMLElement}   element
     * @param   {String}        eventType        like ionic.Gestures.EVENT_MOVE
     * @param   {Object}        eventData
     */
    collectEventData: function collectEventData(element, eventType, touches, ev) {

      // find out pointerType
      var pointerType = ionic.Gestures.POINTER_TOUCH;
      if(ev.type.match(/mouse/) || ionic.Gestures.PointerEvent.matchType(ionic.Gestures.POINTER_MOUSE, ev)) {
        pointerType = ionic.Gestures.POINTER_MOUSE;
      }

      return {
        center      : ionic.Gestures.utils.getCenter(touches),
                    timeStamp   : new Date().getTime(),
                    target      : ev.target,
                    touches     : touches,
                    eventType   : eventType,
                    pointerType : pointerType,
                    srcEvent    : ev,

                    /**
                     * prevent the browser default actions
                     * mostly used to disable scrolling of the browser
                     */
                    preventDefault: function() {
                      if(this.srcEvent.preventManipulation) {
                        this.srcEvent.preventManipulation();
                      }

                      if(this.srcEvent.preventDefault) {
                        //this.srcEvent.preventDefault();
                      }
                    },

                    /**
                     * stop bubbling the event up to its parents
                     */
                    stopPropagation: function() {
                      this.srcEvent.stopPropagation();
                    },

                    /**
                     * immediately stop gesture detection
                     * might be useful after a swipe was detected
                     * @return {*}
                     */
                    stopDetect: function() {
                      return ionic.Gestures.detection.stopDetect();
                    }
      };
    }
  };

  ionic.Gestures.PointerEvent = {
    /**
     * holds all pointers
     * type {Object}
     */
    pointers: {},

    /**
     * get a list of pointers
     * @returns {Array}     touchlist
     */
    getTouchList: function() {
      var self = this;
      var touchlist = [];

      // we can use forEach since pointerEvents only is in IE10
      Object.keys(self.pointers).sort().forEach(function(id) {
        touchlist.push(self.pointers[id]);
      });
      return touchlist;
    },

    /**
     * update the position of a pointer
     * @param   {String}   type             ionic.Gestures.EVENT_END
     * @param   {Object}   pointerEvent
     */
    updatePointer: function(type, pointerEvent) {
      if(type == ionic.Gestures.EVENT_END) {
        this.pointers = {};
      }
      else {
        pointerEvent.identifier = pointerEvent.pointerId;
        this.pointers[pointerEvent.pointerId] = pointerEvent;
      }

      return Object.keys(this.pointers).length;
    },

    /**
     * check if ev matches pointertype
     * @param   {String}        pointerType     ionic.Gestures.POINTER_MOUSE
     * @param   {PointerEvent}  ev
     */
    matchType: function(pointerType, ev) {
      if(!ev.pointerType) {
        return false;
      }

      var types = {};
      types[ionic.Gestures.POINTER_MOUSE] = (ev.pointerType == ev.MSPOINTER_TYPE_MOUSE || ev.pointerType == ionic.Gestures.POINTER_MOUSE);
      types[ionic.Gestures.POINTER_TOUCH] = (ev.pointerType == ev.MSPOINTER_TYPE_TOUCH || ev.pointerType == ionic.Gestures.POINTER_TOUCH);
      types[ionic.Gestures.POINTER_PEN] = (ev.pointerType == ev.MSPOINTER_TYPE_PEN || ev.pointerType == ionic.Gestures.POINTER_PEN);
      return types[pointerType];
    },


    /**
     * get events
     */
    getEvents: function() {
      return [
        'pointerdown MSPointerDown',
      'pointermove MSPointerMove',
      'pointerup pointercancel MSPointerUp MSPointerCancel'
        ];
    },

    /**
     * reset the list
     */
    reset: function() {
      this.pointers = {};
    }
  };


  ionic.Gestures.utils = {
    /**
     * extend method,
     * also used for cloning when dest is an empty object
     * @param   {Object}    dest
     * @param   {Object}    src
     * @param	{Boolean}	merge		do a merge
     * @returns {Object}    dest
     */
    extend: function extend(dest, src, merge) {
      for (var key in src) {
        if(dest[key] !== undefined && merge) {
          continue;
        }
        dest[key] = src[key];
      }
      return dest;
    },


    /**
     * find if a node is in the given parent
     * used for event delegation tricks
     * @param   {HTMLElement}   node
     * @param   {HTMLElement}   parent
     * @returns {boolean}       has_parent
     */
    hasParent: function(node, parent) {
      while(node){
        if(node == parent) {
          return true;
        }
        node = node.parentNode;
      }
      return false;
    },


    /**
     * get the center of all the touches
     * @param   {Array}     touches
     * @returns {Object}    center
     */
    getCenter: function getCenter(touches) {
      var valuesX = [], valuesY = [];

      for(var t= 0,len=touches.length; t<len; t++) {
        valuesX.push(touches[t].pageX);
        valuesY.push(touches[t].pageY);
      }

      return {
        pageX: ((Math.min.apply(Math, valuesX) + Math.max.apply(Math, valuesX)) / 2),
          pageY: ((Math.min.apply(Math, valuesY) + Math.max.apply(Math, valuesY)) / 2)
      };
    },


    /**
     * calculate the velocity between two points
     * @param   {Number}    delta_time
     * @param   {Number}    delta_x
     * @param   {Number}    delta_y
     * @returns {Object}    velocity
     */
    getVelocity: function getVelocity(delta_time, delta_x, delta_y) {
      return {
        x: Math.abs(delta_x / delta_time) || 0,
        y: Math.abs(delta_y / delta_time) || 0
      };
    },


    /**
     * calculate the angle between two coordinates
     * @param   {Touch}     touch1
     * @param   {Touch}     touch2
     * @returns {Number}    angle
     */
    getAngle: function getAngle(touch1, touch2) {
      var y = touch2.pageY - touch1.pageY,
      x = touch2.pageX - touch1.pageX;
      return Math.atan2(y, x) * 180 / Math.PI;
    },


    /**
     * angle to direction define
     * @param   {Touch}     touch1
     * @param   {Touch}     touch2
     * @returns {String}    direction constant, like ionic.Gestures.DIRECTION_LEFT
     */
    getDirection: function getDirection(touch1, touch2) {
      var x = Math.abs(touch1.pageX - touch2.pageX),
      y = Math.abs(touch1.pageY - touch2.pageY);

      if(x >= y) {
        return touch1.pageX - touch2.pageX > 0 ? ionic.Gestures.DIRECTION_LEFT : ionic.Gestures.DIRECTION_RIGHT;
      }
      else {
        return touch1.pageY - touch2.pageY > 0 ? ionic.Gestures.DIRECTION_UP : ionic.Gestures.DIRECTION_DOWN;
      }
    },


    /**
     * calculate the distance between two touches
     * @param   {Touch}     touch1
     * @param   {Touch}     touch2
     * @returns {Number}    distance
     */
    getDistance: function getDistance(touch1, touch2) {
      var x = touch2.pageX - touch1.pageX,
      y = touch2.pageY - touch1.pageY;
      return Math.sqrt((x*x) + (y*y));
    },


    /**
     * calculate the scale factor between two touchLists (fingers)
     * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out
     * @param   {Array}     start
     * @param   {Array}     end
     * @returns {Number}    scale
     */
    getScale: function getScale(start, end) {
      // need two fingers...
      if(start.length >= 2 && end.length >= 2) {
        return this.getDistance(end[0], end[1]) /
          this.getDistance(start[0], start[1]);
      }
      return 1;
    },


    /**
     * calculate the rotation degrees between two touchLists (fingers)
     * @param   {Array}     start
     * @param   {Array}     end
     * @returns {Number}    rotation
     */
    getRotation: function getRotation(start, end) {
      // need two fingers
      if(start.length >= 2 && end.length >= 2) {
        return this.getAngle(end[1], end[0]) -
          this.getAngle(start[1], start[0]);
      }
      return 0;
    },


    /**
     * boolean if the direction is vertical
     * @param    {String}    direction
     * @returns  {Boolean}   is_vertical
     */
    isVertical: function isVertical(direction) {
      return (direction == ionic.Gestures.DIRECTION_UP || direction == ionic.Gestures.DIRECTION_DOWN);
    },


    /**
     * stop browser default behavior with css class
     * @param   {HtmlElement}   element
     * @param   {Object}        css_class
     */
    stopDefaultBrowserBehavior: function stopDefaultBrowserBehavior(element, css_class) {
      // changed from making many style changes to just adding a preset classname
      // less DOM manipulations, less code, and easier to control in the CSS side of things
      // hammer.js doesn't come with CSS, but ionic does, which is why we prefer this method
      if(element && element.classList) {
        element.classList.add(css_class);
        element.onselectstart = function() {
          return false;
        };
      }
    }
  };


  ionic.Gestures.detection = {
    // contains all registred ionic.Gestures.gestures in the correct order
    gestures: [],

    // data of the current ionic.Gestures.gesture detection session
    current: null,

    // the previous ionic.Gestures.gesture session data
    // is a full clone of the previous gesture.current object
    previous: null,

    // when this becomes true, no gestures are fired
    stopped: false,


    /**
     * start ionic.Gestures.gesture detection
     * @param   {ionic.Gestures.Instance}   inst
     * @param   {Object}            eventData
     */
    startDetect: function startDetect(inst, eventData) {
      // already busy with a ionic.Gestures.gesture detection on an element
      if(this.current) {
        return;
      }

      this.stopped = false;

      this.current = {
        inst        : inst, // reference to ionic.GesturesInstance we're working for
        startEvent  : ionic.Gestures.utils.extend({}, eventData), // start eventData for distances, timing etc
        lastEvent   : false, // last eventData
        name        : '' // current gesture we're in/detected, can be 'tap', 'hold' etc
      };

      this.detect(eventData);
    },


    /**
     * ionic.Gestures.gesture detection
     * @param   {Object}    eventData
     */
    detect: function detect(eventData) {
      if(!this.current || this.stopped) {
        return;
      }

      // extend event data with calculations about scale, distance etc
      eventData = this.extendEventData(eventData);

      // instance options
      var inst_options = this.current.inst.options;

      // call ionic.Gestures.gesture handlers
      for(var g=0,len=this.gestures.length; g<len; g++) {
        var gesture = this.gestures[g];

        // only when the instance options have enabled this gesture
        if(!this.stopped && inst_options[gesture.name] !== false) {
          // if a handler returns false, we stop with the detection
          if(gesture.handler.call(gesture, eventData, this.current.inst) === false) {
            this.stopDetect();
            break;
          }
        }
      }

      // store as previous event event
      if(this.current) {
        this.current.lastEvent = eventData;
      }

      // endevent, but not the last touch, so dont stop
      if(eventData.eventType == ionic.Gestures.EVENT_END && !eventData.touches.length-1) {
        this.stopDetect();
      }

      return eventData;
    },


    /**
     * clear the ionic.Gestures.gesture vars
     * this is called on endDetect, but can also be used when a final ionic.Gestures.gesture has been detected
     * to stop other ionic.Gestures.gestures from being fired
     */
    stopDetect: function stopDetect() {
      // clone current data to the store as the previous gesture
      // used for the double tap gesture, since this is an other gesture detect session
      this.previous = ionic.Gestures.utils.extend({}, this.current);

      // reset the current
      this.current = null;

      // stopped!
      this.stopped = true;
    },


    /**
     * extend eventData for ionic.Gestures.gestures
     * @param   {Object}   ev
     * @returns {Object}   ev
     */
    extendEventData: function extendEventData(ev) {
      var startEv = this.current.startEvent;

      // if the touches change, set the new touches over the startEvent touches
      // this because touchevents don't have all the touches on touchstart, or the
      // user must place his fingers at the EXACT same time on the screen, which is not realistic
      // but, sometimes it happens that both fingers are touching at the EXACT same time
      if(startEv && (ev.touches.length != startEv.touches.length || ev.touches === startEv.touches)) {
        // extend 1 level deep to get the touchlist with the touch objects
        startEv.touches = [];
        for(var i=0,len=ev.touches.length; i<len; i++) {
          startEv.touches.push(ionic.Gestures.utils.extend({}, ev.touches[i]));
        }
      }

      var delta_time = ev.timeStamp - startEv.timeStamp,
          delta_x = ev.center.pageX - startEv.center.pageX,
          delta_y = ev.center.pageY - startEv.center.pageY,
          velocity = ionic.Gestures.utils.getVelocity(delta_time, delta_x, delta_y);

      ionic.Gestures.utils.extend(ev, {
        deltaTime   : delta_time,

        deltaX      : delta_x,
        deltaY      : delta_y,

        velocityX   : velocity.x,
        velocityY   : velocity.y,

        distance    : ionic.Gestures.utils.getDistance(startEv.center, ev.center),
        angle       : ionic.Gestures.utils.getAngle(startEv.center, ev.center),
        direction   : ionic.Gestures.utils.getDirection(startEv.center, ev.center),

        scale       : ionic.Gestures.utils.getScale(startEv.touches, ev.touches),
        rotation    : ionic.Gestures.utils.getRotation(startEv.touches, ev.touches),

        startEvent  : startEv
      });

      return ev;
    },


    /**
     * register new gesture
     * @param   {Object}    gesture object, see gestures.js for documentation
     * @returns {Array}     gestures
     */
    register: function register(gesture) {
      // add an enable gesture options if there is no given
      var options = gesture.defaults || {};
      if(options[gesture.name] === undefined) {
        options[gesture.name] = true;
      }

      // extend ionic.Gestures default options with the ionic.Gestures.gesture options
      ionic.Gestures.utils.extend(ionic.Gestures.defaults, options, true);

      // set its index
      gesture.index = gesture.index || 1000;

      // add ionic.Gestures.gesture to the list
      this.gestures.push(gesture);

      // sort the list by index
      this.gestures.sort(function(a, b) {
        if (a.index < b.index) {
          return -1;
        }
        if (a.index > b.index) {
          return 1;
        }
        return 0;
      });

      return this.gestures;
    }
  };


  ionic.Gestures.gestures = ionic.Gestures.gestures || {};

  /**
   * Custom gestures
   * ==============================
   *
   * Gesture object
   * --------------------
   * The object structure of a gesture:
   *
   * { name: 'mygesture',
   *   index: 1337,
   *   defaults: {
   *     mygesture_option: true
   *   }
   *   handler: function(type, ev, inst) {
   *     // trigger gesture event
   *     inst.trigger(this.name, ev);
   *   }
   * }

   * @param   {String}    name
   * this should be the name of the gesture, lowercase
   * it is also being used to disable/enable the gesture per instance config.
   *
   * @param   {Number}    [index=1000]
   * the index of the gesture, where it is going to be in the stack of gestures detection
   * like when you build an gesture that depends on the drag gesture, it is a good
   * idea to place it after the index of the drag gesture.
   *
   * @param   {Object}    [defaults={}]
   * the default settings of the gesture. these are added to the instance settings,
   * and can be overruled per instance. you can also add the name of the gesture,
   * but this is also added by default (and set to true).
   *
   * @param   {Function}  handler
   * this handles the gesture detection of your custom gesture and receives the
   * following arguments:
   *
   *      @param  {Object}    eventData
   *      event data containing the following properties:
   *          timeStamp   {Number}        time the event occurred
   *          target      {HTMLElement}   target element
   *          touches     {Array}         touches (fingers, pointers, mouse) on the screen
   *          pointerType {String}        kind of pointer that was used. matches ionic.Gestures.POINTER_MOUSE|TOUCH
   *          center      {Object}        center position of the touches. contains pageX and pageY
   *          deltaTime   {Number}        the total time of the touches in the screen
   *          deltaX      {Number}        the delta on x axis we haved moved
   *          deltaY      {Number}        the delta on y axis we haved moved
   *          velocityX   {Number}        the velocity on the x
   *          velocityY   {Number}        the velocity on y
   *          angle       {Number}        the angle we are moving
   *          direction   {String}        the direction we are moving. matches ionic.Gestures.DIRECTION_UP|DOWN|LEFT|RIGHT
   *          distance    {Number}        the distance we haved moved
   *          scale       {Number}        scaling of the touches, needs 2 touches
   *          rotation    {Number}        rotation of the touches, needs 2 touches *
   *          eventType   {String}        matches ionic.Gestures.EVENT_START|MOVE|END
   *          srcEvent    {Object}        the source event, like TouchStart or MouseDown *
   *          startEvent  {Object}        contains the same properties as above,
   *                                      but from the first touch. this is used to calculate
   *                                      distances, deltaTime, scaling etc
   *
   *      @param  {ionic.Gestures.Instance}    inst
   *      the instance we are doing the detection for. you can get the options from
   *      the inst.options object and trigger the gesture event by calling inst.trigger
   *
   *
   * Handle gestures
   * --------------------
   * inside the handler you can get/set ionic.Gestures.detectionic.current. This is the current
   * detection sessionic. It has the following properties
   *      @param  {String}    name
   *      contains the name of the gesture we have detected. it has not a real function,
   *      only to check in other gestures if something is detected.
   *      like in the drag gesture we set it to 'drag' and in the swipe gesture we can
   *      check if the current gesture is 'drag' by accessing ionic.Gestures.detectionic.current.name
   *
   *      readonly
   *      @param  {ionic.Gestures.Instance}    inst
   *      the instance we do the detection for
   *
   *      readonly
   *      @param  {Object}    startEvent
   *      contains the properties of the first gesture detection in this sessionic.
   *      Used for calculations about timing, distance, etc.
   *
   *      readonly
   *      @param  {Object}    lastEvent
   *      contains all the properties of the last gesture detect in this sessionic.
   *
   * after the gesture detection session has been completed (user has released the screen)
   * the ionic.Gestures.detectionic.current object is copied into ionic.Gestures.detectionic.previous,
   * this is usefull for gestures like doubletap, where you need to know if the
   * previous gesture was a tap
   *
   * options that have been set by the instance can be received by calling inst.options
   *
   * You can trigger a gesture event by calling inst.trigger("mygesture", event).
   * The first param is the name of your gesture, the second the event argument
   *
   *
   * Register gestures
   * --------------------
   * When an gesture is added to the ionic.Gestures.gestures object, it is auto registered
   * at the setup of the first ionic.Gestures instance. You can also call ionic.Gestures.detectionic.register
   * manually and pass your gesture object as a param
   *
   */

  /**
   * Hold
   * Touch stays at the same place for x time
   * events  hold
   */
  ionic.Gestures.gestures.Hold = {
    name: 'hold',
    index: 10,
    defaults: {
      hold_timeout	: 500,
      hold_threshold	: 1
    },
    timer: null,
    handler: function holdGesture(ev, inst) {
      switch(ev.eventType) {
        case ionic.Gestures.EVENT_START:
          // clear any running timers
          clearTimeout(this.timer);

          // set the gesture so we can check in the timeout if it still is
          ionic.Gestures.detection.current.name = this.name;

          // set timer and if after the timeout it still is hold,
          // we trigger the hold event
          this.timer = setTimeout(function() {
            if(ionic.Gestures.detection.current.name == 'hold') {
              inst.trigger('hold', ev);
            }
          }, inst.options.hold_timeout);
          break;

          // when you move or end we clear the timer
        case ionic.Gestures.EVENT_MOVE:
          if(ev.distance > inst.options.hold_threshold) {
            clearTimeout(this.timer);
          }
          break;

        case ionic.Gestures.EVENT_END:
          clearTimeout(this.timer);
          break;
      }
    }
  };


  /**
   * Tap/DoubleTap
   * Quick touch at a place or double at the same place
   * events  tap, doubletap
   */
  ionic.Gestures.gestures.Tap = {
    name: 'tap',
    index: 100,
    defaults: {
      tap_max_touchtime	: 250,
      tap_max_distance	: 10,
      tap_always			: true,
      doubletap_distance	: 20,
      doubletap_interval	: 300
    },
    handler: function tapGesture(ev, inst) {
      if(ev.eventType == ionic.Gestures.EVENT_END && ev.srcEvent.type != 'touchcancel') {
        // previous gesture, for the double tap since these are two different gesture detections
        var prev = ionic.Gestures.detection.previous,
        did_doubletap = false;

        // when the touchtime is higher then the max touch time
        // or when the moving distance is too much
        if(ev.deltaTime > inst.options.tap_max_touchtime ||
            ev.distance > inst.options.tap_max_distance) {
              return;
            }

        // check if double tap
        if(prev && prev.name == 'tap' &&
            (ev.timeStamp - prev.lastEvent.timeStamp) < inst.options.doubletap_interval &&
            ev.distance < inst.options.doubletap_distance) {
              inst.trigger('doubletap', ev);
              did_doubletap = true;
            }

        // do a single tap
        if(!did_doubletap || inst.options.tap_always) {
          ionic.Gestures.detection.current.name = 'tap';
          inst.trigger(ionic.Gestures.detection.current.name, ev);
        }
      }
    }
  };


  /**
   * Swipe
   * triggers swipe events when the end velocity is above the threshold
   * events  swipe, swipeleft, swiperight, swipeup, swipedown
   */
  ionic.Gestures.gestures.Swipe = {
    name: 'swipe',
    index: 40,
    defaults: {
      // set 0 for unlimited, but this can conflict with transform
      swipe_max_touches  : 1,
      swipe_velocity     : 0.7
    },
    handler: function swipeGesture(ev, inst) {
      if(ev.eventType == ionic.Gestures.EVENT_END) {
        // max touches
        if(inst.options.swipe_max_touches > 0 &&
            ev.touches.length > inst.options.swipe_max_touches) {
              return;
            }

        // when the distance we moved is too small we skip this gesture
        // or we can be already in dragging
        if(ev.velocityX > inst.options.swipe_velocity ||
            ev.velocityY > inst.options.swipe_velocity) {
              // trigger swipe events
              inst.trigger(this.name, ev);
              inst.trigger(this.name + ev.direction, ev);
            }
      }
    }
  };


  /**
   * Drag
   * Move with x fingers (default 1) around on the page. Blocking the scrolling when
   * moving left and right is a good practice. When all the drag events are blocking
   * you disable scrolling on that area.
   * events  drag, drapleft, dragright, dragup, dragdown
   */
  ionic.Gestures.gestures.Drag = {
    name: 'drag',
    index: 50,
    defaults: {
      drag_min_distance : 10,
      // Set correct_for_drag_min_distance to true to make the starting point of the drag
      // be calculated from where the drag was triggered, not from where the touch started.
      // Useful to avoid a jerk-starting drag, which can make fine-adjustments
      // through dragging difficult, and be visually unappealing.
      correct_for_drag_min_distance : true,
      // set 0 for unlimited, but this can conflict with transform
      drag_max_touches  : 1,
      // prevent default browser behavior when dragging occurs
      // be careful with it, it makes the element a blocking element
      // when you are using the drag gesture, it is a good practice to set this true
      drag_block_horizontal   : true,
      drag_block_vertical     : true,
      // drag_lock_to_axis keeps the drag gesture on the axis that it started on,
      // It disallows vertical directions if the initial direction was horizontal, and vice versa.
      drag_lock_to_axis       : false,
      // drag lock only kicks in when distance > drag_lock_min_distance
      // This way, locking occurs only when the distance has become large enough to reliably determine the direction
      drag_lock_min_distance : 25
    },
    triggered: false,
    handler: function dragGesture(ev, inst) {
      // current gesture isnt drag, but dragged is true
      // this means an other gesture is busy. now call dragend
      if(ionic.Gestures.detection.current.name != this.name && this.triggered) {
        inst.trigger(this.name +'end', ev);
        this.triggered = false;
        return;
      }

      // max touches
      if(inst.options.drag_max_touches > 0 &&
          ev.touches.length > inst.options.drag_max_touches) {
            return;
          }

      switch(ev.eventType) {
        case ionic.Gestures.EVENT_START:
          this.triggered = false;
          break;

        case ionic.Gestures.EVENT_MOVE:
          // when the distance we moved is too small we skip this gesture
          // or we can be already in dragging
          if(ev.distance < inst.options.drag_min_distance &&
              ionic.Gestures.detection.current.name != this.name) {
                return;
              }

          // we are dragging!
          if(ionic.Gestures.detection.current.name != this.name) {
            ionic.Gestures.detection.current.name = this.name;
            if (inst.options.correct_for_drag_min_distance) {
              // When a drag is triggered, set the event center to drag_min_distance pixels from the original event center.
              // Without this correction, the dragged distance would jumpstart at drag_min_distance pixels instead of at 0.
              // It might be useful to save the original start point somewhere
              var factor = Math.abs(inst.options.drag_min_distance/ev.distance);
              ionic.Gestures.detection.current.startEvent.center.pageX += ev.deltaX * factor;
              ionic.Gestures.detection.current.startEvent.center.pageY += ev.deltaY * factor;

              // recalculate event data using new start point
              ev = ionic.Gestures.detection.extendEventData(ev);
            }
          }

          // lock drag to axis?
          if(ionic.Gestures.detection.current.lastEvent.drag_locked_to_axis || (inst.options.drag_lock_to_axis && inst.options.drag_lock_min_distance<=ev.distance)) {
            ev.drag_locked_to_axis = true;
          }
          var last_direction = ionic.Gestures.detection.current.lastEvent.direction;
          if(ev.drag_locked_to_axis && last_direction !== ev.direction) {
            // keep direction on the axis that the drag gesture started on
            if(ionic.Gestures.utils.isVertical(last_direction)) {
              ev.direction = (ev.deltaY < 0) ? ionic.Gestures.DIRECTION_UP : ionic.Gestures.DIRECTION_DOWN;
            }
            else {
              ev.direction = (ev.deltaX < 0) ? ionic.Gestures.DIRECTION_LEFT : ionic.Gestures.DIRECTION_RIGHT;
            }
          }

          // first time, trigger dragstart event
          if(!this.triggered) {
            inst.trigger(this.name +'start', ev);
            this.triggered = true;
          }

          // trigger normal event
          inst.trigger(this.name, ev);

          // direction event, like dragdown
          inst.trigger(this.name + ev.direction, ev);

          // block the browser events
          if( (inst.options.drag_block_vertical && ionic.Gestures.utils.isVertical(ev.direction)) ||
              (inst.options.drag_block_horizontal && !ionic.Gestures.utils.isVertical(ev.direction))) {
                ev.preventDefault();
              }
          break;

        case ionic.Gestures.EVENT_END:
          // trigger dragend
          if(this.triggered) {
            inst.trigger(this.name +'end', ev);
          }

          this.triggered = false;
          break;
      }
    }
  };


  /**
   * Transform
   * User want to scale or rotate with 2 fingers
   * events  transform, pinch, pinchin, pinchout, rotate
   */
  ionic.Gestures.gestures.Transform = {
    name: 'transform',
    index: 45,
    defaults: {
      // factor, no scale is 1, zoomin is to 0 and zoomout until higher then 1
      transform_min_scale     : 0.01,
      // rotation in degrees
      transform_min_rotation  : 1,
      // prevent default browser behavior when two touches are on the screen
      // but it makes the element a blocking element
      // when you are using the transform gesture, it is a good practice to set this true
      transform_always_block  : false
    },
    triggered: false,
    handler: function transformGesture(ev, inst) {
      // current gesture isnt drag, but dragged is true
      // this means an other gesture is busy. now call dragend
      if(ionic.Gestures.detection.current.name != this.name && this.triggered) {
        inst.trigger(this.name +'end', ev);
        this.triggered = false;
        return;
      }

      // atleast multitouch
      if(ev.touches.length < 2) {
        return;
      }

      // prevent default when two fingers are on the screen
      if(inst.options.transform_always_block) {
        ev.preventDefault();
      }

      switch(ev.eventType) {
        case ionic.Gestures.EVENT_START:
          this.triggered = false;
          break;

        case ionic.Gestures.EVENT_MOVE:
          var scale_threshold = Math.abs(1-ev.scale);
          var rotation_threshold = Math.abs(ev.rotation);

          // when the distance we moved is too small we skip this gesture
          // or we can be already in dragging
          if(scale_threshold < inst.options.transform_min_scale &&
              rotation_threshold < inst.options.transform_min_rotation) {
                return;
              }

          // we are transforming!
          ionic.Gestures.detection.current.name = this.name;

          // first time, trigger dragstart event
          if(!this.triggered) {
            inst.trigger(this.name +'start', ev);
            this.triggered = true;
          }

          inst.trigger(this.name, ev); // basic transform event

          // trigger rotate event
          if(rotation_threshold > inst.options.transform_min_rotation) {
            inst.trigger('rotate', ev);
          }

          // trigger pinch event
          if(scale_threshold > inst.options.transform_min_scale) {
            inst.trigger('pinch', ev);
            inst.trigger('pinch'+ ((ev.scale < 1) ? 'in' : 'out'), ev);
          }
          break;

        case ionic.Gestures.EVENT_END:
          // trigger dragend
          if(this.triggered) {
            inst.trigger(this.name +'end', ev);
          }

          this.triggered = false;
          break;
      }
    }
  };


  /**
   * Touch
   * Called as first, tells the user has touched the screen
   * events  touch
   */
  ionic.Gestures.gestures.Touch = {
    name: 'touch',
    index: -Infinity,
    defaults: {
      // call preventDefault at touchstart, and makes the element blocking by
      // disabling the scrolling of the page, but it improves gestures like
      // transforming and dragging.
      // be careful with using this, it can be very annoying for users to be stuck
      // on the page
      prevent_default: false,

      // disable mouse events, so only touch (or pen!) input triggers events
      prevent_mouseevents: false
    },
    handler: function touchGesture(ev, inst) {
      if(inst.options.prevent_mouseevents && ev.pointerType == ionic.Gestures.POINTER_MOUSE) {
        ev.stopDetect();
        return;
      }

      if(inst.options.prevent_default) {
        ev.preventDefault();
      }

      if(ev.eventType ==  ionic.Gestures.EVENT_START) {
        inst.trigger(this.name, ev);
      }
    }
  };


  /**
   * Release
   * Called as last, tells the user has released the screen
   * events  release
   */
  ionic.Gestures.gestures.Release = {
    name: 'release',
    index: Infinity,
    handler: function releaseGesture(ev, inst) {
      if(ev.eventType ==  ionic.Gestures.EVENT_END) {
        inst.trigger(this.name, ev);
      }
    }
  };
})(window.ionic);

(function(window, document, ionic) {

  /**
   * @ngdoc utility
   * @name ionic.Platform
   * @module ionic
   */
  ionic.Platform = {

    /**
     * @ngdoc property
     * @name ionic.Platform#isReady
     * @returns {boolean} Whether the device is ready.
     */
    isReady: false,
    /**
     * @ngdoc property
     * @name ionic.Platform#isFullScreen
     * @returns {boolean} Whether the device is fullscreen.
     */
    isFullScreen: false,
    /**
     * @ngdoc property
     * @name ionic.Platform#platforms
     * @returns {Array(string)} An array of all platforms found.
     */
    platforms: null,
    /**
     * @ngdoc property
     * @name ionic.Platform#grade
     * @returns {string} What grade the current platform is.
     */
    grade: null,
    ua: navigator.userAgent,

    /**
     * @ngdoc method
     * @name ionic.Platform#ready
     * @description
     * Trigger a callback once the device is ready, or immediately
     * if the device is already ready. This method can be run from
     * anywhere and does not need to be wrapped by any additonal methods.
     * When the app is within a WebView (Cordova), it'll fire
     * the callback once the device is ready. If the app is within
     * a web browser, it'll fire the callback after `window.load`.
     * @param {function} callback The function to call.
     */
    ready: function(cb) {
      // run through tasks to complete now that the device is ready
      if(this.isReady) {
        cb();
      } else {
        // the platform isn't ready yet, add it to this array
        // which will be called once the platform is ready
        readyCallbacks.push(cb);
      }
    },

    /**
     * @private
     */
    detect: function() {
      ionic.Platform._checkPlatforms();

      ionic.requestAnimationFrame(function(){
        // only add to the body class if we got platform info
        for(var i = 0; i < ionic.Platform.platforms.length; i++) {
          document.body.classList.add('platform-' + ionic.Platform.platforms[i]);
        }
        document.body.classList.add('grade-' + ionic.Platform.grade);
      });
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#device
     * @description Return the current device (given by cordova).
     * @returns {object} The device object.
     */
    device: function() {
      if(window.device) return window.device;
      if(this.isWebView()) void 0;
      return {};
    },

    _checkPlatforms: function(platforms) {
      this.platforms = [];
      this.grade = 'a';

      if(this.isWebView()) {
        this.platforms.push('webview');
        this.platforms.push('cordova');
      } else {
        this.platforms.push('browser');
      }
      if(this.isIPad()) this.platforms.push('ipad');

      var platform = this.platform();
      if(platform) {
        this.platforms.push(platform);

        var version = this.version();
        if(version) {
          var v = version.toString();
          if(v.indexOf('.') > 0) {
            v = v.replace('.', '_');
          } else {
            v += '_0';
          }
          this.platforms.push(platform + v.split('_')[0]);
          this.platforms.push(platform + v);

          if(this.isAndroid() && version < 4.4) {
            this.grade = (version < 4 ? 'c' : 'b');
          }
        }
      }
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#isWebView
     * @returns {boolean} Check if we are running within a WebView (such as Cordova).
     */
    isWebView: function() {
      return !(!window.cordova && !window.PhoneGap && !window.phonegap);
    },
    /**
     * @ngdoc method
     * @name ionic.Platform#isIPad
     * @returns {boolean} Whether we are running on iPad.
     */
    isIPad: function() {
      if( /iPad/i.test(window.navigator.platform) ) {
        return true;
      }
      return /iPad/i.test(this.ua);
    },
    /**
     * @ngdoc method
     * @name ionic.Platform#isIOS
     * @returns {boolean} Whether we are running on iOS.
     */
    isIOS: function() {
      return this.is('ios');
    },
    /**
     * @ngdoc method
     * @name ionic.Platform#isAndroid
     * @returns {boolean} Whether we are running on Android.
     */
    isAndroid: function() {
      return this.is('android');
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#platform
     * @returns {string} The name of the current platform.
     */
    platform: function() {
      // singleton to get the platform name
      if(platformName === null) this.setPlatform(this.device().platform);
      return platformName;
    },

    /**
     * @private
     */
    setPlatform: function(n) {
      if(typeof n != 'undefined' && n !== null && n.length) {
        platformName = n.toLowerCase();
      } else if(this.ua.indexOf('Android') > 0) {
        platformName = 'android';
      } else if(this.ua.indexOf('iPhone') > -1 || this.ua.indexOf('iPad') > -1 || this.ua.indexOf('iPod') > -1) {
        platformName = 'ios';
      } else {
        platformName = window.navigator.platform && window.navigator.platform.toLowerCase().split(' ')[0] || '';
      }
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#version
     * @returns {string} The version of the current device platform.
     */
    version: function() {
      // singleton to get the platform version
      if(platformVersion === null) this.setVersion(this.device().version);
      return platformVersion;
    },

    /**
     * @private
     */
    setVersion: function(v) {
      if(typeof v != 'undefined' && v !== null) {
        v = v.split('.');
        v = parseFloat(v[0] + '.' + (v.length > 1 ? v[1] : 0));
        if(!isNaN(v)) {
          platformVersion = v;
          return;
        }
      }

      platformVersion = 0;

      // fallback to user-agent checking
      var pName = this.platform();
      var versionMatch = {
        'android': /Android (\d+).(\d+)?/,
        'ios': /OS (\d+)_(\d+)?/
      };
      if(versionMatch[pName]) {
        v = this.ua.match( versionMatch[pName] );
        if(v.length > 2) {
          platformVersion = parseFloat( v[1] + '.' + v[2] );
        }
      }
    },

    // Check if the platform is the one detected by cordova
    is: function(type) {
      type = type.toLowerCase();
      // check if it has an array of platforms
      if(this.platforms) {
        for(var x = 0; x < this.platforms.length; x++) {
          if(this.platforms[x] === type) return true;
        }
      }
      // exact match
      var pName = this.platform();
      if(pName) {
        return pName === type.toLowerCase();
      }

      // A quick hack for to check userAgent
      return this.ua.toLowerCase().indexOf(type) >= 0;
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#exitApp
     * @description Exit the app.
     */
    exitApp: function() {
      this.ready(function(){
        navigator.app && navigator.app.exitApp && navigator.app.exitApp();
      });
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#showStatusBar
     * @description Shows or hides the device status bar (in Cordova).
     * @param {boolean} shouldShow Whether or not to show the status bar.
     */
    showStatusBar: function(val) {
      // Only useful when run within cordova
      this._showStatusBar = val;
      this.ready(function(){
        // run this only when or if the platform (cordova) is ready
        ionic.requestAnimationFrame(function(){
          if(ionic.Platform._showStatusBar) {
            // they do not want it to be full screen
            window.StatusBar && window.StatusBar.show();
            document.body.classList.remove('status-bar-hide');
          } else {
            // it should be full screen
            window.StatusBar && window.StatusBar.hide();
            document.body.classList.add('status-bar-hide');
          }
        });
      });
    },

    /**
     * @ngdoc method
     * @name ionic.Platform#fullScreen
     * @description
     * Sets whether the app is fullscreen or not (in Cordova).
     * @param {boolean=} showFullScreen Whether or not to set the app to fullscreen. Defaults to true.
     * @param {boolean=} showStatusBar Whether or not to show the device's status bar. Defaults to false.
     */
    fullScreen: function(showFullScreen, showStatusBar) {
      // showFullScreen: default is true if no param provided
      this.isFullScreen = (showFullScreen !== false);

      // add/remove the fullscreen classname to the body
      ionic.DomUtil.ready(function(){
        // run this only when or if the DOM is ready
        ionic.requestAnimationFrame(function(){
          if(ionic.Platform.isFullScreen) {
            document.body.classList.add('fullscreen');
          } else {
            document.body.classList.remove('fullscreen');
          }
        });
        // showStatusBar: default is false if no param provided
        ionic.Platform.showStatusBar( (showStatusBar === true) );
      });
    }

  };

  var platformName = null, // just the name, like iOS or Android
  platformVersion = null, // a float of the major and minor, like 7.1
  readyCallbacks = [];

  // setup listeners to know when the device is ready to go
  function onWindowLoad() {
    if(ionic.Platform.isWebView()) {
      // the window and scripts are fully loaded, and a cordova/phonegap
      // object exists then let's listen for the deviceready
      document.addEventListener("deviceready", onPlatformReady, false);
    } else {
      // the window and scripts are fully loaded, but the window object doesn't have the
      // cordova/phonegap object, so its just a browser, not a webview wrapped w/ cordova
      onPlatformReady();
    }
    window.removeEventListener("load", onWindowLoad, false);
  }
  window.addEventListener("load", onWindowLoad, false);

  function onPlatformReady() {
    // the device is all set to go, init our own stuff then fire off our event
    ionic.Platform.isReady = true;
    ionic.Platform.detect();
    for(var x=0; x<readyCallbacks.length; x++) {
      // fire off all the callbacks that were added before the platform was ready
      readyCallbacks[x]();
    }
    readyCallbacks = [];
    ionic.trigger('platformready', { target: document });

    ionic.requestAnimationFrame(function(){
      document.body.classList.add('platform-ready');
    });
  }

})(this, document, ionic);

(function(document, ionic) {
  'use strict';

  // Ionic CSS polyfills
  ionic.CSS = {};

  (function() {

    // transform
    var i, keys = ['webkitTransform', 'transform', '-webkit-transform', 'webkit-transform',
                '-moz-transform', 'moz-transform', 'MozTransform', 'mozTransform'];

    for(i = 0; i < keys.length; i++) {
      if(document.documentElement.style[keys[i]] !== undefined) {
        ionic.CSS.TRANSFORM = keys[i];
        break;
      }
    }

    // transition
    keys = ['webkitTransition', 'mozTransition', 'transition'];
    for(i = 0; i < keys.length; i++) {
      if(document.documentElement.style[keys[i]] !== undefined) {
        ionic.CSS.TRANSITION = keys[i];
        break;
      }
    }

  })();

  // classList polyfill for them older Androids
  // https://gist.github.com/devongovett/1381839
  if (!("classList" in document.documentElement) && Object.defineProperty && typeof HTMLElement !== 'undefined') {
    Object.defineProperty(HTMLElement.prototype, 'classList', {
      get: function() {
        var self = this;
        function update(fn) {
          return function() {
            var x, classes = self.className.split(/\s+/);

            for(x=0; x<arguments.length; x++) {
              fn(classes, classes.indexOf(arguments[x]), arguments[x]);
            }

            self.className = classes.join(" ");
          };
        }

        return {
          add: update(function(classes, index, value) {
            ~index || classes.push(value);
          }),

          remove: update(function(classes, index) {
            ~index && classes.splice(index, 1);
          }),

          toggle: update(function(classes, index, value) {
            ~index ? classes.splice(index, 1) : classes.push(value);
          }),

          contains: function(value) {
            return !!~self.className.split(/\s+/).indexOf(value);
          },

          item: function(i) {
            return self.className.split(/\s+/)[i] || null;
          }
        };

      }
    });
  }

})(document, ionic);


/**
 * @ngdoc page
 * @name tap
 * @module ionic
 * @description
 * On touch devices such as a phone or tablet, some browsers implement a 300ms delay between
 * the time the user stops touching the display and the moment the browser executes the
 * click. This delay was initially introduced so the browser can know whether the user wants to
 * double-tap to zoom in on the webpage.  Basically, the browser waits roughly 300ms to see if
 * the user is double-tapping, or just tapping on the display once.
 *
 * Out of the box, Ionic automatically removes the 300ms delay in order to make Ionic apps
 * feel more "native" like. Resultingly, other solutions such as
 * [fastclick](https://github.com/ftlabs/fastclick) and Angular's
 * [ngTouch](https://docs.angularjs.org/api/ngTouch) should not be included, to avoid conflicts.
 *
 * In some cases, third-party libraries may also be working with touch events which can interfere
 * with the tap system. For example, mapping libraries like Google or Leaflet Maps often implement
 * a touch detection system which conflicts with Ionic's tap system.
 *
 * ### Disabling the tap system
 *
 * To disable the tap for an element and all of its children elements,
 * add the attribute `data-tap-disabled="true"`.
 *
 * ```html
 * <div data-tap-disabled="true">
 *     <div id="google-map"></div>
 * </div>
 * ```
 *
 * ### Additional Notes:
 *
 * - Ionic tap  works with Ionic's JavaScript scrolling
 * - Elements can come and go from the DOM and Ionic tap doesn't keep adding and removing
 *   listeners
 * - No "tap delay" after the first "tap" (you can tap as fast as you want, they all click)
 * - Minimal events listeners, only being added to document
 * - Correct focus in/out on each input type (select, textearea, range) on each platform/device
 * - Shows and hides virtual keyboard correctly for each platform/device
 * - Works with labels surrounding inputs
 * - Does not fire off a click if the user moves the pointer too far
 * - Adds and removes an 'activated' css class
 * - Multiple [unit tests](https://github.com/driftyco/ionic/blob/master/test/unit/utils/tap.unit.js) for each scenario
 *
 */
/*

 IONIC TAP
 ---------------
 - Both touch and mouse events are added to the document.body on DOM ready
 - If a touch event happens, it does not use mouse event listeners
 - On touchend, if the distance between start and end was small, trigger a click
 - In the triggered click event, add a 'isIonicTap' property
 - The triggered click receives the same x,y coordinates as as the end event
 - On document.body click listener (with useCapture=true), only allow clicks with 'isIonicTap'
 - Triggering clicks with mouse events work the same as touch, except with mousedown/mouseup
 - Tapping inputs is disabled during scrolling
*/

var tapDoc; // the element which the listeners are on (document.body)
var tapActiveEle; // the element which is active (probably has focus)
var tapEnabledTouchEvents;
var tapMouseResetTimer;
var tapPointerMoved;
var tapPointerStart;
var tapTouchFocusedInput;

var TAP_RELEASE_TOLERANCE = 6; // how much the coordinates can be off between start/end, but still a click

var tapEventListeners = {
  'click': tapClickGateKeeper,

  'mousedown': tapMouseDown,
  'mouseup': tapMouseUp,
  'mousemove': tapMouseMove,

  'touchstart': tapTouchStart,
  'touchend': tapTouchEnd,
  'touchcancel': tapTouchCancel,
  'touchmove': tapTouchMove,

  'focusin': tapFocusIn,
  'focusout': tapFocusOut
};

ionic.tap = {

  register: function(ele) {
    tapDoc = ele;

    tapEventListener('click', true, true);
    tapEventListener('mouseup');
    tapEventListener('mousedown');
    tapEventListener('touchstart');
    tapEventListener('touchend');
    tapEventListener('touchcancel');
    tapEventListener('focusin');
    tapEventListener('focusout');

    return function() {
      for(var type in tapEventListeners) {
        tapEventListener(type, false);
      }
      tapDoc = null;
      tapActiveEle = null;
      tapEnabledTouchEvents = false;
      tapPointerMoved = false;
      tapPointerStart = null;
    };
  },

  ignoreScrollStart: function(e) {
    return (e.defaultPrevented) ||  // defaultPrevented has been assigned by another component handling the event
           (e.target.isContentEditable) ||
           (/file|range/i).test(e.target.type) ||
           (e.target.dataset ? e.target.dataset.preventScroll : e.target.getAttribute('data-prevent-default')) == 'true' || // manually set within an elements attributes
           (!!(/object|embed/i).test(e.target.tagName));  // flash/movie/object touches should not try to scroll
  },

  isTextInput: function(ele) {
    return !!ele &&
           (ele.tagName == 'TEXTAREA' ||
            ele.contentEditable === 'true' ||
            (ele.tagName == 'INPUT' && !(/radio|checkbox|range|file|submit|reset/i).test(ele.type)) );
  },

  isLabelWithTextInput: function(ele) {
    var container = tapContainingElement(ele, false);

    return !!container &&
           ionic.tap.isTextInput( tapTargetElement( container ) );
  },

  containsOrIsTextInput: function(ele) {
    return ionic.tap.isTextInput(ele) || ionic.tap.isLabelWithTextInput(ele);
  },

  cloneFocusedInput: function(container, scrollIntance) {
    if(ionic.tap.hasCheckedClone) return;
    ionic.tap.hasCheckedClone = true;

    ionic.requestAnimationFrame(function(){
      var focusInput = container.querySelector(':focus');
      if( ionic.tap.isTextInput(focusInput) ) {
        var clonedInput = focusInput.parentElement.querySelector('.cloned-text-input');
        if(!clonedInput) {
          clonedInput = document.createElement(focusInput.tagName);
          clonedInput.type = focusInput.type;
          clonedInput.value = focusInput.value;
          clonedInput.className = 'cloned-text-input';
          clonedInput.readOnly = true;
          focusInput.parentElement.insertBefore(clonedInput, focusInput);
          focusInput.style.top = focusInput.offsetTop;
          focusInput.classList.add('previous-input-focus');
        }
      }
    });
  },

  hasCheckedClone: false,

  removeClonedInputs: function(container, scrollIntance) {
    ionic.tap.hasCheckedClone = false;

    ionic.requestAnimationFrame(function(){
      var clonedInputs = container.querySelectorAll('.cloned-text-input');
      var previousInputFocus = container.querySelectorAll('.previous-input-focus');
      var x;

      for(x=0; x<clonedInputs.length; x++) {
        clonedInputs[x].parentElement.removeChild( clonedInputs[x] );
      }

      for(x=0; x<previousInputFocus.length; x++) {
        previousInputFocus[x].classList.remove('previous-input-focus');
        previousInputFocus[x].style.top = '';
        previousInputFocus[x].focus();
      }
    });
  },

  requiresNativeClick: function(ele) {
    if(!ele || ele.disabled || (/file|range/i).test(ele.type) || (/object|video/i).test(ele.tagName) ) {
      return true;
    }
    if(ele.nodeType === 1) {
      var element = ele;
      while(element) {
        if( (element.dataset ? element.dataset.tapDisabled : element.getAttribute('data-tap-disabled')) == 'true' ) {
          return true;
        }
        element = element.parentElement;
      }
    }
    return false;
  }

};

function tapEventListener(type, enable, useCapture) {
  if(enable !== false) {
    tapDoc.addEventListener(type, tapEventListeners[type], useCapture);
  } else {
    tapDoc.removeEventListener(type, tapEventListeners[type]);
  }
}

function tapClick(e) {
  // simulate a normal click by running the element's click method then focus on it
  var container = tapContainingElement(e.target);
  var ele = tapTargetElement(container);

  if( ionic.tap.requiresNativeClick(ele) || tapPointerMoved ) return false;

  var c = getPointerCoordinates(e);

  void 0;
  triggerMouseEvent('click', ele, c.x, c.y);

  // if it's an input, focus in on the target, otherwise blur
  tapHandleFocus(ele);
}

function triggerMouseEvent(type, ele, x, y) {
  // using initMouseEvent instead of MouseEvent for our Android friends
  var clickEvent = document.createEvent("MouseEvents");
  clickEvent.initMouseEvent(type, true, true, window, 1, 0, 0, x, y, false, false, false, false, 0, null);
  clickEvent.isIonicTap = true;
  ele.dispatchEvent(clickEvent);
}

function tapClickGateKeeper(e) {
  if(e.target.type == 'submit' && e.detail === 0) {
    // do not prevent click if it came from an "Enter" or "Go" keypress submit
    return;
  }

  // do not allow through any click events that were not created by ionic.tap
  if( (ionic.scroll.isScrolling && ionic.tap.containsOrIsTextInput(e.target) ) ||
      (!e.isIonicTap && !ionic.tap.requiresNativeClick(e.target)) ) {
    void 0;
    e.stopPropagation();

    if( !ionic.tap.isLabelWithTextInput(e.target) ) {
      // labels clicks from native should not preventDefault othersize keyboard will not show on input focus
      e.preventDefault();
    }
    return false;
  }
}

// MOUSE
function tapMouseDown(e) {
  if(e.isIonicTap || tapIgnoreEvent(e)) return;

  if(tapEnabledTouchEvents) {
    void 0;
    e.stopPropagation();

    if( !ionic.tap.isTextInput(e.target) ) {
      // If you preventDefault on a text input then you cannot move its text caret/cursor.
      // Allow through only the text input default. However, without preventDefault on an
      // input the 300ms delay can change focus on inputs after the keyboard shows up.
      // The focusin event handles the chance of focus changing after the keyboard shows.
      e.preventDefault();
    }

    return false;
  }

  tapPointerMoved = false;
  tapPointerStart = getPointerCoordinates(e);

  tapEventListener('mousemove');
  ionic.activator.start(e);
}

function tapMouseUp(e) {
  if(tapEnabledTouchEvents) {
    e.stopPropagation();
    e.preventDefault();
    return false;
  }

  if( tapIgnoreEvent(e) || e.target.tagName === 'SELECT' ) return false;

  if( !tapHasPointerMoved(e) ) {
    tapClick(e);
  }
  tapEventListener('mousemove', false);
  ionic.activator.end();
  tapPointerMoved = false;
}

function tapMouseMove(e) {
  if( tapHasPointerMoved(e) ) {
    tapEventListener('mousemove', false);
    ionic.activator.end();
    tapPointerMoved = true;
    return false;
  }
}


// TOUCH
function tapTouchStart(e) {
  if( tapIgnoreEvent(e) ) return;

  tapPointerMoved = false;

  tapEnableTouchEvents();
  tapPointerStart = getPointerCoordinates(e);

  tapEventListener('touchmove');
  ionic.activator.start(e);

  if( ionic.Platform.isIOS() && ionic.tap.isLabelWithTextInput(e.target) ) {
    // if the tapped element is a label, which has a child input
    // then preventDefault so iOS doesn't ugly auto scroll to the input
    // but do not prevent default on Android or else you cannot move the text caret
    // and do not prevent default on Android or else no virtual keyboard shows up

    var textInput = tapTargetElement( tapContainingElement(e.target) );
    if( textInput !== tapActiveEle ) {
      // don't preventDefault on an already focused input or else iOS's text caret isn't usable
      e.preventDefault();
    }
  }
}

function tapTouchEnd(e) {
  if( tapIgnoreEvent(e) ) return;

  tapEnableTouchEvents();
  if( !tapHasPointerMoved(e) ) {
    tapClick(e);
  }

  tapTouchCancel();
}

function tapTouchMove(e) {
  if( tapHasPointerMoved(e) ) {
    tapPointerMoved = true;
    tapEventListener('touchmove', false);
    ionic.activator.end();
    return false;
  }
}

function tapTouchCancel(e) {
  tapEventListener('touchmove', false);
  ionic.activator.end();
  tapPointerMoved = false;
}

function tapEnableTouchEvents() {
  tapEnabledTouchEvents = true;
  clearTimeout(tapMouseResetTimer);
  tapMouseResetTimer = setTimeout(function(){
    tapEnabledTouchEvents = false;
  }, 2000);
}

function tapIgnoreEvent(e) {
  if(e.isTapHandled) return true;
  e.isTapHandled = true;

  if( ionic.scroll.isScrolling && ionic.tap.containsOrIsTextInput(e.target) ) {
    e.preventDefault();
    return true;
  }
}

function tapHandleFocus(ele) {
  tapTouchFocusedInput = null;

  var triggerFocusIn = false;

  if(ele.tagName == 'SELECT') {
    // trick to force Android options to show up
    triggerMouseEvent('mousedown', ele, 0, 0);
    ele.focus && ele.focus();
    triggerFocusIn = true;

  } else if(tapActiveElement() === ele) {
    // already is the active element and has focus
    triggerFocusIn = true;

  } else if( (/input|textarea/i).test(ele.tagName) ) {
    triggerFocusIn = true;
    ele.focus && ele.focus();
    ele.value = ele.value;
    if( tapEnabledTouchEvents ) {
      tapTouchFocusedInput = ele;
    }

  } else {
    tapFocusOutActive();
  }

  if(triggerFocusIn) {
    tapActiveElement(ele);
    ionic.trigger('ionic.focusin', {
      target: ele
    }, true);
  }
}

function tapFocusOutActive() {
  var ele = tapActiveElement();
  if(ele && (/input|textarea|select/i).test(ele.tagName) ) {
    void 0;
    ele.blur();
  }
  tapActiveElement(null);
}

function tapFocusIn(e) {
  // Because a text input doesn't preventDefault (so the caret still works) there's a chance
  // that it's mousedown event 300ms later will change the focus to another element after
  // the keyboard shows up.

  if( tapEnabledTouchEvents &&
      ionic.tap.isTextInput( tapActiveElement() ) &&
      ionic.tap.isTextInput(tapTouchFocusedInput) &&
      tapTouchFocusedInput !== e.target ) {

    // 1) The pointer is from touch events
    // 2) There is an active element which is a text input
    // 3) A text input was just set to be focused on by a touch event
    // 4) A new focus has been set, however the target isn't the one the touch event wanted
    void 0;
    tapTouchFocusedInput.focus();
    tapTouchFocusedInput = null;
  }
  ionic.scroll.isScrolling = false;
}

function tapFocusOut() {
  tapActiveElement(null);
}

function tapActiveElement(ele) {
  if(arguments.length) {
    tapActiveEle = ele;
  }
  return tapActiveEle || document.activeElement;
}

function tapHasPointerMoved(endEvent) {
  if(!endEvent || !tapPointerStart || ( tapPointerStart.x === 0 && tapPointerStart.y === 0 )) {
    return false;
  }
  var endCoordinates = getPointerCoordinates(endEvent);

  return Math.abs(tapPointerStart.x - endCoordinates.x) > TAP_RELEASE_TOLERANCE ||
         Math.abs(tapPointerStart.y - endCoordinates.y) > TAP_RELEASE_TOLERANCE;
}

function getPointerCoordinates(event) {
  // This method can get coordinates for both a mouse click
  // or a touch depending on the given event
  var c = { x:0, y:0 };
  if(event) {
    var touches = event.touches && event.touches.length ? event.touches : [event];
    var e = (event.changedTouches && event.changedTouches[0]) || touches[0];
    if(e) {
      c.x = e.clientX || e.pageX || 0;
      c.y = e.clientY || e.pageY || 0;
    }
  }
  return c;
}

function tapContainingElement(ele, allowSelf) {
  var climbEle = ele;
  for(var x=0; x<6; x++) {
    if(!climbEle) break;
    if(climbEle.tagName === 'LABEL') return climbEle;
    climbEle = ele.parentElement;
  }
  if(allowSelf !== false) return ele;
}

function tapTargetElement(ele) {
  if(ele && ele.tagName === 'LABEL') {
    if(ele.control) return ele.control;

    // older devices do not support the "control" property
    if(ele.querySelector) {
      var control = ele.querySelector('input,textarea,select');
      if(control) return control;
    }
  }
  return ele;
}

ionic.DomUtil.ready(function(){
  ionic.tap.register(document);
});

(function(document, ionic) {
  'use strict';

  var queueElements = {};   // elements that should get an active state in XX milliseconds
  var activeElements = {};  // elements that are currently active
  var keyId = 0;            // a counter for unique keys for the above ojects
  var ACTIVATED_CLASS = 'activated';

  ionic.activator = {

    start: function(e) {
      var self = this;

      // when an element is touched/clicked, it climbs up a few
      // parents to see if it is an .item or .button element
      ionic.requestAnimationFrame(function(){
        if ( ionic.tap.requiresNativeClick(e.target) ) return;
        var ele = e.target;
        var eleToActivate;

        for(var x=0; x<4; x++) {
          if(!ele || ele.nodeType !== 1) break;
          if(eleToActivate && ele.classList.contains('item')) {
            eleToActivate = ele;
            break;
          }
          if( ele.tagName == 'A' || ele.tagName == 'BUTTON' || ele.hasAttribute('ng-click') ) {
            eleToActivate = ele;
          }
          if( ele.classList.contains('button') ) {
            eleToActivate = ele;
            break;
          }
          ele = ele.parentElement;
        }

        if(eleToActivate) {
          // queue that this element should be set to active
          queueElements[keyId] = eleToActivate;

          // in XX milliseconds, set the queued elements to active
          if(e.type === 'touchstart') {
            self._activateTimeout = setTimeout(activateElements, 80);
          } else {
            ionic.requestAnimationFrame(activateElements);
          }

          keyId = (keyId > 19 ? 0 : keyId + 1);
        }

      });
    },

    end: function() {
      // clear out any active/queued elements after XX milliseconds
      clearTimeout(this._activateTimeout);
      setTimeout(clear, 200);
    }

  };

  function clear() {
    // clear out any elements that are queued to be set to active
    queueElements = {};

    // in the next frame, remove the active class from all active elements
    ionic.requestAnimationFrame(deactivateElements);
  }

  function activateElements() {
    // activate all elements in the queue
    for(var key in queueElements) {
      if(queueElements[key]) {
        queueElements[key].classList.add(ACTIVATED_CLASS);
        activeElements[key] = queueElements[key];
      }
    }
    queueElements = {};
  }

  function deactivateElements() {
    for(var key in activeElements) {
      if(activeElements[key]) {
        activeElements[key].classList.remove(ACTIVATED_CLASS);
        delete activeElements[key];
      }
    }
  }

})(document, ionic);

(function(ionic) {

  /* for nextUid() function below */
  var uid = ['0','0','0'];

  /**
   * Various utilities used throughout Ionic
   *
   * Some of these are adopted from underscore.js and backbone.js, both also MIT licensed.
   */
  ionic.Utils = {

    arrayMove: function (arr, old_index, new_index) {
      if (new_index >= arr.length) {
        var k = new_index - arr.length;
        while ((k--) + 1) {
          arr.push(undefined);
        }
      }
      arr.splice(new_index, 0, arr.splice(old_index, 1)[0]);
      return arr;
    },

    /**
     * Return a function that will be called with the given context
     */
    proxy: function(func, context) {
      var args = Array.prototype.slice.call(arguments, 2);
      return function() {
        return func.apply(context, args.concat(Array.prototype.slice.call(arguments)));
      };
    },

    /**
     * Only call a function once in the given interval.
     *
     * @param func {Function} the function to call
     * @param wait {int} how long to wait before/after to allow function calls
     * @param immediate {boolean} whether to call immediately or after the wait interval
     */
     debounce: function(func, wait, immediate) {
      var timeout, args, context, timestamp, result;
      return function() {
        context = this;
        args = arguments;
        timestamp = new Date();
        var later = function() {
          var last = (new Date()) - timestamp;
          if (last < wait) {
            timeout = setTimeout(later, wait - last);
          } else {
            timeout = null;
            if (!immediate) result = func.apply(context, args);
          }
        };
        var callNow = immediate && !timeout;
        if (!timeout) {
          timeout = setTimeout(later, wait);
        }
        if (callNow) result = func.apply(context, args);
        return result;
      };
    },

    /**
     * Throttle the given fun, only allowing it to be
     * called at most every `wait` ms.
     */
    throttle: function(func, wait, options) {
      var context, args, result;
      var timeout = null;
      var previous = 0;
      options || (options = {});
      var later = function() {
        previous = options.leading === false ? 0 : Date.now();
        timeout = null;
        result = func.apply(context, args);
      };
      return function() {
        var now = Date.now();
        if (!previous && options.leading === false) previous = now;
        var remaining = wait - (now - previous);
        context = this;
        args = arguments;
        if (remaining <= 0) {
          clearTimeout(timeout);
          timeout = null;
          previous = now;
          result = func.apply(context, args);
        } else if (!timeout && options.trailing !== false) {
          timeout = setTimeout(later, remaining);
        }
        return result;
      };
    },
     // Borrowed from Backbone.js's extend
     // Helper function to correctly set up the prototype chain, for subclasses.
     // Similar to `goog.inherits`, but uses a hash of prototype properties and
     // class properties to be extended.
    inherit: function(protoProps, staticProps) {
      var parent = this;
      var child;

      // The constructor function for the new subclass is either defined by you
      // (the "constructor" property in your `extend` definition), or defaulted
      // by us to simply call the parent's constructor.
      if (protoProps && protoProps.hasOwnProperty('constructor')) {
        child = protoProps.constructor;
      } else {
        child = function(){ return parent.apply(this, arguments); };
      }

      // Add static properties to the constructor function, if supplied.
      ionic.extend(child, parent, staticProps);

      // Set the prototype chain to inherit from `parent`, without calling
      // `parent`'s constructor function.
      var Surrogate = function(){ this.constructor = child; };
      Surrogate.prototype = parent.prototype;
      child.prototype = new Surrogate;

      // Add prototype properties (instance properties) to the subclass,
      // if supplied.
      if (protoProps) ionic.extend(child.prototype, protoProps);

      // Set a convenience property in case the parent's prototype is needed
      // later.
      child.__super__ = parent.prototype;

      return child;
    },

    // Extend adapted from Underscore.js
    extend: function(obj) {
       var args = Array.prototype.slice.call(arguments, 1);
       for(var i = 0; i < args.length; i++) {
         var source = args[i];
         if (source) {
           for (var prop in source) {
             obj[prop] = source[prop];
           }
         }
       }
       return obj;
    },

    /**
     * A consistent way of creating unique IDs in angular. The ID is a sequence of alpha numeric
     * characters such as '012ABC'. The reason why we are not using simply a number counter is that
     * the number string gets longer over time, and it can also overflow, where as the nextId
     * will grow much slower, it is a string, and it will never overflow.
     *
     * @returns an unique alpha-numeric string
     */
    nextUid: function() {
      var index = uid.length;
      var digit;

      while(index) {
        index--;
        digit = uid[index].charCodeAt(0);
        if (digit == 57 /*'9'*/) {
          uid[index] = 'A';
          return uid.join('');
        }
        if (digit == 90  /*'Z'*/) {
          uid[index] = '0';
        } else {
          uid[index] = String.fromCharCode(digit + 1);
          return uid.join('');
        }
      }
      uid.unshift('0');
      return uid.join('');
    }
  };

  // Bind a few of the most useful functions to the ionic scope
  ionic.inherit = ionic.Utils.inherit;
  ionic.extend = ionic.Utils.extend;
  ionic.throttle = ionic.Utils.throttle;
  ionic.proxy = ionic.Utils.proxy;
  ionic.debounce = ionic.Utils.debounce;

})(window.ionic);


/*
IONIC KEYBOARD
---------------

*/

var keyboardViewportHeight = window.innerHeight;
var keyboardIsOpen;
var keyboardActiveElement;
var keyboardFocusOutTimer;
var keyboardFocusInTimer;
var keyboardLastShow = 0;

var KEYBOARD_OPEN_CSS = 'keyboard-open';
var SCROLL_CONTAINER_CSS = 'scroll';

ionic.keyboard = {
  isOpen: false,
  height: null,
  landscape: false,
};

function keyboardInit() {
  if( keyboardHasPlugin() ) {
    window.addEventListener('native.showkeyboard', keyboardNativeShow);
    window.addEventListener('native.hidekeyboard', keyboardFocusOut);
  }
  else {
    document.body.addEventListener('focusout', keyboardFocusOut);
  }

  document.body.addEventListener('ionic.focusin', keyboardBrowserFocusIn);
  document.body.addEventListener('focusin', keyboardBrowserFocusIn);

  document.body.addEventListener('orientationchange', keyboardOrientationChange);

  document.removeEventListener('touchstart', keyboardInit);
}

function keyboardNativeShow(e) {
  clearTimeout(keyboardFocusOutTimer);
  ionic.keyboard.height = e.keyboardHeight;
}

function keyboardBrowserFocusIn(e) {
  if( !e.target || !ionic.tap.isTextInput(e.target) || !keyboardIsWithinScroll(e.target) ) return;

  document.addEventListener('keydown', keyboardOnKeyDown, false);

  document.body.scrollTop = 0;
  document.body.querySelector('.scroll-content').scrollTop = 0;

  keyboardActiveElement = e.target;

  keyboardSetShow(e);
}

function keyboardSetShow(e) {
  clearTimeout(keyboardFocusInTimer);
  clearTimeout(keyboardFocusOutTimer);

  keyboardFocusInTimer = setTimeout(function(){
    if ( keyboardLastShow + 350 > Date.now() ) return; 
    keyboardLastShow = Date.now();
    var keyboardHeight; 
    var elementBounds = keyboardActiveElement.getBoundingClientRect();
    var count = 0;

    var pollKeyboardHeight = setInterval(function(){

      keyboardHeight = keyboardGetHeight();
      if (count > 10){
        clearInterval(pollKeyboardHeight);
        //waited long enough, just guess
        keyboardHeight = 275;
      }
      if (keyboardHeight){
        keyboardShow(e.target, elementBounds.top, elementBounds.bottom, keyboardViewportHeight, keyboardHeight);
        clearInterval(pollKeyboardHeight);
      }
      count++;
      
    }, 100); 
  }, 32);
}

function keyboardShow(element, elementTop, elementBottom, viewportHeight, keyboardHeight) {
  var details = {
    target: element,
    elementTop: Math.round(elementTop),
    elementBottom: Math.round(elementBottom),
    keyboardHeight: keyboardHeight
  };

  details.hasPlugin = keyboardHasPlugin();

  details.contentHeight = viewportHeight - keyboardHeight;

  void 0;

  // distance from top of input to the top of the keyboard
  details.keyboardTopOffset = details.elementTop - details.contentHeight;

  void 0;

  // figure out if the element is under the keyboard
  details.isElementUnderKeyboard = (details.elementBottom > details.contentHeight);

  ionic.keyboard.isOpen = true;

  // send event so the scroll view adjusts
  keyboardActiveElement = element;
  ionic.trigger('scrollChildIntoView', details, true);

  ionic.requestAnimationFrame(function(){
    document.body.classList.add(KEYBOARD_OPEN_CSS);
  });

  // any showing part of the document that isn't within the scroll the user
  // could touchmove and cause some ugly changes to the app, so disable
  // any touchmove events while the keyboard is open using e.preventDefault()
  document.addEventListener('touchmove', keyboardPreventDefault, false);

  return details;
}

function keyboardFocusOut(e) {
  clearTimeout(keyboardFocusInTimer);
  clearTimeout(keyboardFocusOutTimer);

  keyboardFocusOutTimer = setTimeout(keyboardHide, 350);
}

function keyboardHide() {
  void 0;
  ionic.keyboard.isOpen = false;

  ionic.trigger('resetScrollView', {
    target: keyboardActiveElement
  }, true);

  ionic.requestAnimationFrame(function(){
    document.body.classList.remove(KEYBOARD_OPEN_CSS);
  });

  // the keyboard is gone now, remove the touchmove that disables native scroll
  document.removeEventListener('touchmove', keyboardPreventDefault);
  document.removeEventListener('keydown', keyboardOnKeyDown);
}

function keyboardUpdateViewportHeight() {
  if( window.innerHeight > keyboardViewportHeight ) {
    keyboardViewportHeight = window.innerHeight;
  }
}

function keyboardOnKeyDown(e) {
  if( ionic.scroll.isScrolling ) {
    keyboardPreventDefault(e);
  }
}

function keyboardPreventDefault(e) {
  e.preventDefault();
}

function keyboardOrientationChange() {
  var updatedViewportHeight = window.innerHeight;

  //too slow, have to wait for updated height
  if (updatedViewportHeight === keyboardViewportHeight){
    var count = 0;
    var pollViewportHeight = setInterval(function(){
      //give up
      if (count > 10){
        clearInterval(pollViewportHeight);
      }

      updatedViewportHeight = window.innerHeight;
      
      if (updatedViewportHeight !== keyboardViewportHeight){
        if (updatedViewportHeight < keyboardViewportHeight){
          ionic.keyboard.landscape = true; 
        }
        else {
          ionic.keyboard.landscape = false;
        }
        keyboardViewportHeight = updatedViewportHeight;
        clearInterval(pollViewportHeight);
      }
      count++;

    }, 50);
  }
  else {
    keyboardViewportHeight = updatedViewportHeight;    
  }
}

function keyboardGetHeight() {
  // check if we are already have a keyboard height from the plugin
  if ( ionic.keyboard.height ) {
    return ionic.keyboard.height;
  }

  if ( ionic.Platform.isAndroid() ){
    //should be using the plugin, no way to know how big the keyboard is, so guess
    if ( ionic.Platform.isFullScreen ){
      return 275;
    }
    //otherwise, wait for the screen to resize
    if ( window.innerHeight < keyboardViewportHeight ){
      return keyboardViewportHeight - window.innerHeight;
    }
    else {
      return 0;
    }
  }

  // fallback for when its the webview without the plugin
  // or for just the standard web browser
  if( ionic.Platform.isIOS() ) {
    if ( ionic.keyboard.landscape ){
      return 206;
    }

    if (!ionic.Platform.isWebView()){
      return 216;
    }

    return 260;
  }

  // safe guess
  return 275;
}

function keyboardIsWithinScroll(ele) {
  while(ele) {
    if(ele.classList.contains(SCROLL_CONTAINER_CSS)) {
      return true;
    }
    ele = ele.parentElement;
  }
  return false;
}

function keyboardHasPlugin() {
  return !!(window.cordova && cordova.plugins && cordova.plugins.Keyboard);
}

ionic.Platform.ready(function() {
  keyboardUpdateViewportHeight();

  // Android sometimes reports bad innerHeight on window.load
  // try it again in a lil bit to play it safe
  setTimeout(keyboardUpdateViewportHeight, 999);

  // only initialize the adjustments for the virtual keyboard
  // if a touchstart event happens
  document.addEventListener('touchstart', keyboardInit, false);
});



var viewportTag;
var viewportProperties = {};

ionic.viewport = {
  orientation: function() {
    // 0 = Portrait
    // 90 = Landscape
    // not using window.orientation because each device has a different implementation
    return (window.innerWidth > window.innerHeight ? 90 : 0);
  }
};

function viewportLoadTag() {
  var x;

  for(x=0; x<document.head.children.length; x++) {
    if(document.head.children[x].name == 'viewport') {
      viewportTag = document.head.children[x];
      break;
    }
  }

  if(viewportTag) {
    var props = viewportTag.content.toLowerCase().replace(/\s+/g, '').split(',');
    var keyValue;
    for(x=0; x<props.length; x++) {
      if(props[x] != '') {
        keyValue = props[x].split('=');
        viewportProperties[ keyValue[0] ] = (keyValue.length > 1 ? keyValue[1] : '_');
      }
    }
    viewportUpdate();
  }
}

function viewportUpdate() {
  // unit tests in viewport.unit.js

  var initWidth = viewportProperties.width;
  var initHeight = viewportProperties.height;
  var p = ionic.Platform;
  var version = p.version();
  var DEVICE_WIDTH = 'device-width';
  var DEVICE_HEIGHT = 'device-height';
  var orientation = ionic.viewport.orientation();

  // Most times we're removing the height and adding the width
  // So this is the default to start with, then modify per platform/version/oreintation
  delete viewportProperties.height;
  viewportProperties.width = DEVICE_WIDTH;

  if( p.isIPad() ) {
    // iPad

    if( version > 7 ) {
      // iPad >= 7.1
      // https://issues.apache.org/jira/browse/CB-4323
      delete viewportProperties.width;

    } else {
      // iPad <= 7.0

      if( p.isWebView() ) {
        // iPad <= 7.0 WebView

        if( orientation == 90 ) {
          // iPad <= 7.0 WebView Landscape
          viewportProperties.height = '0';

        } else if(version == 7) {
          // iPad <= 7.0 WebView Portait
          viewportProperties.height = DEVICE_HEIGHT;
        }
      } else {
        // iPad <= 6.1 Browser
        if(version < 7) {
          viewportProperties.height = '0';
        }
      }
    }

  } else if( p.isIOS() ) {
    // iPhone

    if( p.isWebView() ) {
      // iPhone WebView

      if(version > 7) {
        // iPhone >= 7.1 WebView
        delete viewportProperties.width;

      } else if(version < 7) {
        // iPhone <= 6.1 WebView
        // if height was set it needs to get removed with this hack for <= 6.1
        if( initHeight ) viewportProperties.height = '0';
      }

    } else {
      // iPhone Browser

      if (version < 7) {
        // iPhone <= 6.1 Browser
        // if height was set it needs to get removed with this hack for <= 6.1
        if( initHeight ) viewportProperties.height = '0';
      }
    }

  }

  // only update the viewport tag if there was a change
  if(initWidth !== viewportProperties.width || initHeight !== viewportProperties.height) {
    viewportTagUpdate();
  }
}

function viewportTagUpdate() {
  var key, props = [];
  for(key in viewportProperties) {
    if( viewportProperties[key] ) {
      props.push(key + (viewportProperties[key] == '_' ? '' : '=' + viewportProperties[key]) );
    }
  }

  viewportTag.content = props.join(', ');
}

ionic.Platform.ready(function() {
  viewportLoadTag();

  window.addEventListener("orientationchange", function(){
    setTimeout(viewportUpdate, 1000);
  }, false);
});

(function(ionic) {
'use strict';
  ionic.views.View = function() {
    this.initialize.apply(this, arguments);
  };

  ionic.views.View.inherit = ionic.inherit;

  ionic.extend(ionic.views.View.prototype, {
    initialize: function() {}
  });

})(window.ionic);

/*
 * Scroller
 * http://github.com/zynga/scroller
 *
 * Copyright 2011, Zynga Inc.
 * Licensed under the MIT License.
 * https://raw.github.com/zynga/scroller/master/MIT-LICENSE.txt
 *
 * Based on the work of: Unify Project (unify-project.org)
 * http://unify-project.org
 * Copyright 2011, Deutsche Telekom AG
 * License: MIT + Apache (V2)
 */

/**
 * Generic animation class with support for dropped frames both optional easing and duration.
 *
 * Optional duration is useful when the lifetime is defined by another condition than time
 * e.g. speed of an animating object, etc.
 *
 * Dropped frame logic allows to keep using the same updater logic independent from the actual
 * rendering. This eases a lot of cases where it might be pretty complex to break down a state
 * based on the pure time difference.
 */
var zyngaCore = { effect: {} };
(function(global) {
  var time = Date.now || function() {
    return +new Date();
  };
  var desiredFrames = 60;
  var millisecondsPerSecond = 1000;
  var running = {};
  var counter = 1;

  zyngaCore.effect.Animate = {

    /**
     * A requestAnimationFrame wrapper / polyfill.
     *
     * @param callback {Function} The callback to be invoked before the next repaint.
     * @param root {HTMLElement} The root element for the repaint
     */
    requestAnimationFrame: (function() {

      // Check for request animation Frame support
      var requestFrame = global.requestAnimationFrame || global.webkitRequestAnimationFrame || global.mozRequestAnimationFrame || global.oRequestAnimationFrame;
      var isNative = !!requestFrame;

      if (requestFrame && !/requestAnimationFrame\(\)\s*\{\s*\[native code\]\s*\}/i.test(requestFrame.toString())) {
        isNative = false;
      }

      if (isNative) {
        return function(callback, root) {
          requestFrame(callback, root);
        };
      }

      var TARGET_FPS = 60;
      var requests = {};
      var requestCount = 0;
      var rafHandle = 1;
      var intervalHandle = null;
      var lastActive = +new Date();

      return function(callback, root) {
        var callbackHandle = rafHandle++;

        // Store callback
        requests[callbackHandle] = callback;
        requestCount++;

        // Create timeout at first request
        if (intervalHandle === null) {

          intervalHandle = setInterval(function() {

            var time = +new Date();
            var currentRequests = requests;

            // Reset data structure before executing callbacks
            requests = {};
            requestCount = 0;

            for(var key in currentRequests) {
              if (currentRequests.hasOwnProperty(key)) {
                currentRequests[key](time);
                lastActive = time;
              }
            }

            // Disable the timeout when nothing happens for a certain
            // period of time
            if (time - lastActive > 2500) {
              clearInterval(intervalHandle);
              intervalHandle = null;
            }

          }, 1000 / TARGET_FPS);
        }

        return callbackHandle;
      };

    })(),


    /**
     * Stops the given animation.
     *
     * @param id {Integer} Unique animation ID
     * @return {Boolean} Whether the animation was stopped (aka, was running before)
     */
    stop: function(id) {
      var cleared = running[id] != null;
      if (cleared) {
        running[id] = null;
      }

      return cleared;
    },


    /**
     * Whether the given animation is still running.
     *
     * @param id {Integer} Unique animation ID
     * @return {Boolean} Whether the animation is still running
     */
    isRunning: function(id) {
      return running[id] != null;
    },


    /**
     * Start the animation.
     *
     * @param stepCallback {Function} Pointer to function which is executed on every step.
     *   Signature of the method should be `function(percent, now, virtual) { return continueWithAnimation; }`
     * @param verifyCallback {Function} Executed before every animation step.
     *   Signature of the method should be `function() { return continueWithAnimation; }`
     * @param completedCallback {Function}
     *   Signature of the method should be `function(droppedFrames, finishedAnimation) {}`
     * @param duration {Integer} Milliseconds to run the animation
     * @param easingMethod {Function} Pointer to easing function
     *   Signature of the method should be `function(percent) { return modifiedValue; }`
     * @param root {Element} Render root, when available. Used for internal
     *   usage of requestAnimationFrame.
     * @return {Integer} Identifier of animation. Can be used to stop it any time.
     */
    start: function(stepCallback, verifyCallback, completedCallback, duration, easingMethod, root) {

      var start = time();
      var lastFrame = start;
      var percent = 0;
      var dropCounter = 0;
      var id = counter++;

      if (!root) {
        root = document.body;
      }

      // Compacting running db automatically every few new animations
      if (id % 20 === 0) {
        var newRunning = {};
        for (var usedId in running) {
          newRunning[usedId] = true;
        }
        running = newRunning;
      }

      // This is the internal step method which is called every few milliseconds
      var step = function(virtual) {

        // Normalize virtual value
        var render = virtual !== true;

        // Get current time
        var now = time();

        // Verification is executed before next animation step
        if (!running[id] || (verifyCallback && !verifyCallback(id))) {

          running[id] = null;
          completedCallback && completedCallback(desiredFrames - (dropCounter / ((now - start) / millisecondsPerSecond)), id, false);
          return;

        }

        // For the current rendering to apply let's update omitted steps in memory.
        // This is important to bring internal state variables up-to-date with progress in time.
        if (render) {

          var droppedFrames = Math.round((now - lastFrame) / (millisecondsPerSecond / desiredFrames)) - 1;
          for (var j = 0; j < Math.min(droppedFrames, 4); j++) {
            step(true);
            dropCounter++;
          }

        }

        // Compute percent value
        if (duration) {
          percent = (now - start) / duration;
          if (percent > 1) {
            percent = 1;
          }
        }

        // Execute step callback, then...
        var value = easingMethod ? easingMethod(percent) : percent;
        if ((stepCallback(value, now, render) === false || percent === 1) && render) {
          running[id] = null;
          completedCallback && completedCallback(desiredFrames - (dropCounter / ((now - start) / millisecondsPerSecond)), id, percent === 1 || duration == null);
        } else if (render) {
          lastFrame = now;
          zyngaCore.effect.Animate.requestAnimationFrame(step, root);
        }
      };

      // Mark as running
      running[id] = true;

      // Init first step
      zyngaCore.effect.Animate.requestAnimationFrame(step, root);

      // Return unique animation ID
      return id;
    }
  };
})(this);

/*
 * Scroller
 * http://github.com/zynga/scroller
 *
 * Copyright 2011, Zynga Inc.
 * Licensed under the MIT License.
 * https://raw.github.com/zynga/scroller/master/MIT-LICENSE.txt
 *
 * Based on the work of: Unify Project (unify-project.org)
 * http://unify-project.org
 * Copyright 2011, Deutsche Telekom AG
 * License: MIT + Apache (V2)
 */

var Scroller;

(function(ionic) {
  var NOOP = function(){};

  // Easing Equations (c) 2003 Robert Penner, all rights reserved.
  // Open source under the BSD License.

  /**
   * @param pos {Number} position between 0 (start of effect) and 1 (end of effect)
  **/
  var easeOutCubic = function(pos) {
    return (Math.pow((pos - 1), 3) + 1);
  };

  /**
   * @param pos {Number} position between 0 (start of effect) and 1 (end of effect)
  **/
  var easeInOutCubic = function(pos) {
    if ((pos /= 0.5) < 1) {
      return 0.5 * Math.pow(pos, 3);
    }

    return 0.5 * (Math.pow((pos - 2), 3) + 2);
  };


/**
 * ionic.views.Scroll
 * A powerful scroll view with support for bouncing, pull to refresh, and paging.
 * @param   {Object}        options options for the scroll view
 * @class A scroll view system
 * @memberof ionic.views
 */
ionic.views.Scroll = ionic.views.View.inherit({
  initialize: function(options) {
    var self = this;

    this.__container = options.el;
    this.__content = options.el.firstElementChild;

    //Remove any scrollTop attached to these elements; they are virtual scroll now
    //This also stops on-load-scroll-to-window.location.hash that the browser does
    setTimeout(function() {
      if (self.__container && self.__content) {
        self.__container.scrollTop = 0;
        self.__content.scrollTop = 0;
      }
    });

    this.options = {

      /** Disable scrolling on x-axis by default */
      scrollingX: false,
      scrollbarX: true,

      /** Enable scrolling on y-axis */
      scrollingY: true,
      scrollbarY: true,

      startX: 0,
      startY: 0,

      /** The amount to dampen mousewheel events */
      wheelDampen: 6,

      /** The minimum size the scrollbars scale to while scrolling */
      minScrollbarSizeX: 5,
      minScrollbarSizeY: 5,

      /** Scrollbar fading after scrolling */
      scrollbarsFade: true,
      scrollbarFadeDelay: 300,
      /** The initial fade delay when the pane is resized or initialized */
      scrollbarResizeFadeDelay: 1000,

      /** Enable animations for deceleration, snap back, zooming and scrolling */
      animating: true,

      /** duration for animations triggered by scrollTo/zoomTo */
      animationDuration: 250,

      /** Enable bouncing (content can be slowly moved outside and jumps back after releasing) */
      bouncing: true,

      /** Enable locking to the main axis if user moves only slightly on one of them at start */
      locking: true,

      /** Enable pagination mode (switching between full page content panes) */
      paging: false,

      /** Enable snapping of content to a configured pixel grid */
      snapping: false,

      /** Enable zooming of content via API, fingers and mouse wheel */
      zooming: false,

      /** Minimum zoom level */
      minZoom: 0.5,

      /** Maximum zoom level */
      maxZoom: 3,

      /** Multiply or decrease scrolling speed **/
      speedMultiplier: 1,

      /** Callback that is fired on the later of touch end or deceleration end,
        provided that another scrolling action has not begun. Used to know
        when to fade out a scrollbar. */
      scrollingComplete: NOOP,

      /** This configures the amount of change applied to deceleration when reaching boundaries  **/
      penetrationDeceleration : 0.03,

      /** This configures the amount of change applied to acceleration when reaching boundaries  **/
      penetrationAcceleration : 0.08,

      // The ms interval for triggering scroll events
      scrollEventInterval: 10,

      getContentWidth: function() {
        return Math.max(self.__content.scrollWidth, self.__content.offsetWidth);
      },
      getContentHeight: function() {
        return Math.max(self.__content.scrollHeight, self.__content.offsetHeight);
      }
		};

    for (var key in options) {
      this.options[key] = options[key];
    }

    this.hintResize = ionic.debounce(function() {
      self.resize();
    }, 1000, true);

    this.onScroll = function() {

      if(!ionic.scroll.isScrolling) {
        setTimeout(self.setScrollStart, 50);
      } else {
        clearTimeout(self.scrollTimer);
        self.scrollTimer = setTimeout(self.setScrollStop, 80);
      }

    };

    this.setScrollStart = function() {
      ionic.scroll.isScrolling = Math.abs(ionic.scroll.lastTop - self.__scrollTop) > 1;
      clearTimeout(self.scrollTimer);
      self.scrollTimer = setTimeout(self.setScrollStop, 80);
    };

    this.setScrollStop = function() {
      ionic.scroll.isScrolling = false;
      ionic.scroll.lastTop = self.__scrollTop;
    };

    this.triggerScrollEvent = ionic.throttle(function() {
      self.onScroll();
      ionic.trigger('scroll', {
        scrollTop: self.__scrollTop,
        scrollLeft: self.__scrollLeft,
        target: self.__container
      });
    }, this.options.scrollEventInterval);

    this.triggerScrollEndEvent = function() {
      ionic.trigger('scrollend', {
        scrollTop: self.__scrollTop,
        scrollLeft: self.__scrollLeft,
        target: self.__container
      });
    };

    this.__scrollLeft = this.options.startX;
    this.__scrollTop = this.options.startY;

    // Get the render update function, initialize event handlers,
    // and calculate the size of the scroll container
    this.__callback = this.getRenderFn();
    this.__initEventHandlers();
    this.__createScrollbars();

  },

  run: function() {
    this.resize();

    // Fade them out
    this.__fadeScrollbars('out', this.options.scrollbarResizeFadeDelay);
  },



  /*
  ---------------------------------------------------------------------------
    INTERNAL FIELDS :: STATUS
  ---------------------------------------------------------------------------
  */

  /** Whether only a single finger is used in touch handling */
  __isSingleTouch: false,

  /** Whether a touch event sequence is in progress */
  __isTracking: false,

  /** Whether a deceleration animation went to completion. */
  __didDecelerationComplete: false,

  /**
   * Whether a gesture zoom/rotate event is in progress. Activates when
   * a gesturestart event happens. This has higher priority than dragging.
   */
  __isGesturing: false,

  /**
   * Whether the user has moved by such a distance that we have enabled
   * dragging mode. Hint: It's only enabled after some pixels of movement to
   * not interrupt with clicks etc.
   */
  __isDragging: false,

  /**
   * Not touching and dragging anymore, and smoothly animating the
   * touch sequence using deceleration.
   */
  __isDecelerating: false,

  /**
   * Smoothly animating the currently configured change
   */
  __isAnimating: false,



  /*
  ---------------------------------------------------------------------------
    INTERNAL FIELDS :: DIMENSIONS
  ---------------------------------------------------------------------------
  */

  /** Available outer left position (from document perspective) */
  __clientLeft: 0,

  /** Available outer top position (from document perspective) */
  __clientTop: 0,

  /** Available outer width */
  __clientWidth: 0,

  /** Available outer height */
  __clientHeight: 0,

  /** Outer width of content */
  __contentWidth: 0,

  /** Outer height of content */
  __contentHeight: 0,

  /** Snapping width for content */
  __snapWidth: 100,

  /** Snapping height for content */
  __snapHeight: 100,

  /** Height to assign to refresh area */
  __refreshHeight: null,

  /** Whether the refresh process is enabled when the event is released now */
  __refreshActive: false,

  /** Callback to execute on activation. This is for signalling the user about a refresh is about to happen when he release */
  __refreshActivate: null,

  /** Callback to execute on deactivation. This is for signalling the user about the refresh being cancelled */
  __refreshDeactivate: null,

  /** Callback to execute to start the actual refresh. Call {@link #refreshFinish} when done */
  __refreshStart: null,

  /** Zoom level */
  __zoomLevel: 1,

  /** Scroll position on x-axis */
  __scrollLeft: 0,

  /** Scroll position on y-axis */
  __scrollTop: 0,

  /** Maximum allowed scroll position on x-axis */
  __maxScrollLeft: 0,

  /** Maximum allowed scroll position on y-axis */
  __maxScrollTop: 0,

  /* Scheduled left position (final position when animating) */
  __scheduledLeft: 0,

  /* Scheduled top position (final position when animating) */
  __scheduledTop: 0,

  /* Scheduled zoom level (final scale when animating) */
  __scheduledZoom: 0,



  /*
  ---------------------------------------------------------------------------
    INTERNAL FIELDS :: LAST POSITIONS
  ---------------------------------------------------------------------------
  */

  /** Left position of finger at start */
  __lastTouchLeft: null,

  /** Top position of finger at start */
  __lastTouchTop: null,

  /** Timestamp of last move of finger. Used to limit tracking range for deceleration speed. */
  __lastTouchMove: null,

  /** List of positions, uses three indexes for each state: left, top, timestamp */
  __positions: null,



  /*
  ---------------------------------------------------------------------------
    INTERNAL FIELDS :: DECELERATION SUPPORT
  ---------------------------------------------------------------------------
  */

  /** Minimum left scroll position during deceleration */
  __minDecelerationScrollLeft: null,

  /** Minimum top scroll position during deceleration */
  __minDecelerationScrollTop: null,

  /** Maximum left scroll position during deceleration */
  __maxDecelerationScrollLeft: null,

  /** Maximum top scroll position during deceleration */
  __maxDecelerationScrollTop: null,

  /** Current factor to modify horizontal scroll position with on every step */
  __decelerationVelocityX: null,

  /** Current factor to modify vertical scroll position with on every step */
  __decelerationVelocityY: null,


  /** the browser-specific property to use for transforms */
  __transformProperty: null,
  __perspectiveProperty: null,

  /** scrollbar indicators */
  __indicatorX: null,
  __indicatorY: null,

  /** Timeout for scrollbar fading */
  __scrollbarFadeTimeout: null,

  /** whether we've tried to wait for size already */
  __didWaitForSize: null,
  __sizerTimeout: null,

  __initEventHandlers: function() {
    var self = this;

    // Event Handler
    var container = this.__container;

    //Broadcasted when keyboard is shown on some platforms.
    //See js/utils/keyboard.js
    container.addEventListener('scrollChildIntoView', function(e) {
      if( !self.isScrolledIntoView ) {
        // shrink scrollview so we can actually scroll if the input is hidden
        // if it isn't shrink so we can scroll to inputs under the keyboard
        if (ionic.Platform.isIOS() || ionic.Platform.isFullScreen){
          container.style.height = (container.clientHeight - e.detail.keyboardHeight) + "px";
          container.style.overflow = "visible";
          //update scroll view
          self.resize();
        }
        self.isScrolledIntoView = true;
      }

      //If the element is positioned under the keyboard...
      if( e.detail.isElementUnderKeyboard ) {
        var delay;
        // Wait on android for scroll view to resize
        if ( !ionic.Platform.isFullScreen && e.detail.hasPlugin ) {
          delay = 350;
        }
        else {
          delay = 80;
        }

        //Put element in middle of visible screen
        //Wait for resize() to reset scroll position
        ionic.scroll.isScrolling = true;
        setTimeout(function(){
          //middle of the scrollview, where we want to scroll to
          var scrollViewMidpointOffset = container.clientHeight * 0.5;
          var scrollTop = e.detail.keyboardTopOffset + scrollViewMidpointOffset;
          void 0;
          ionic.tap.cloneFocusedInput(container, self);
          self.scrollBy(0, scrollTop, true);
          self.onScroll();
        }, delay);
      }

      //Only the first scrollView parent of the element that broadcasted this event
      //(the active element that needs to be shown) should receive this event
      e.stopPropagation();
    });

    container.addEventListener('resetScrollView', function(e) {
      //return scrollview to original height once keyboard has hidden
      self.isScrolledIntoView = false;
      container.style.height = "";
      container.style.overflow = "";
      self.resize();
      ionic.scroll.isScrolling = false;
    });


    self.touchStart = function(e) {
      self.startCoordinates = getPointerCoordinates(e);

      if ( ionic.tap.ignoreScrollStart(e) ) {
        return;
      }

      if( ionic.tap.containsOrIsTextInput(e.target) ) {
        // do not start if the target is a text input
        // if there is a touchmove on this input, then we can start the scroll
        self.__hasStarted = false;
        return;
      }

      self.__isSelectable = true;
      self.__enableScrollY = true;
      self.__hasStarted = true;
      self.doTouchStart(e.touches, e.timeStamp);
      e.preventDefault();
    };

    self.touchMove = function(e) {
      if(e.defaultPrevented) {
        return;
      }

      if( !self.__hasStarted && ionic.tap.containsOrIsTextInput(e.target) ) {
        // the target is a text input and scroll has started
        // since the text input doesn't start on touchStart, do it here
        self.__hasStarted = true;
        self.doTouchStart(e.touches, e.timeStamp);
        e.preventDefault();
        return;
      }

      if(self.startCoordinates) {
        // we have start coordinates, so get this touch move's current coordinates
        var currentCoordinates = getPointerCoordinates(e);

        if( self.__isSelectable &&
            ionic.tap.isTextInput(e.target) &&
            Math.abs(self.startCoordinates.x - currentCoordinates.x) > 20 ) {
          // user slid the text input's caret on its x axis, disable any future y scrolling
          self.__enableScrollY = false;
          self.__isSelectable = true;
        }

        if( self.__enableScrollY && Math.abs(self.startCoordinates.y - currentCoordinates.y) > 10 ) {
          // user scrolled the entire view on the y axis
          // disabled being able to select text on an input
          // hide the input which has focus, and show a cloned one that doesn't have focus
          self.__isSelectable = false;
          ionic.tap.cloneFocusedInput(container, self);
        }
      }

      self.doTouchMove(e.touches, e.timeStamp, e.scale);
    };

    self.touchEnd = function(e) {
      self.doTouchEnd(e.timeStamp);
      self.__hasStarted = false;
      self.__isSelectable = true;
      self.__enableScrollY = true;

      if( !self.__isDragging && !self.__isDecelerating && !self.__isAnimating ) {
        ionic.tap.removeClonedInputs(container, self);
      }
    };

    self.options.orgScrollingComplete = self.options.scrollingComplete;
    self.options.scrollingComplete = function() {
      ionic.tap.removeClonedInputs(container, self);
      self.options.orgScrollingComplete();
    };


    if ('ontouchstart' in window) {
      container.addEventListener("touchstart", self.touchStart, false);
      document.addEventListener("touchmove", self.touchMove, false);
      document.addEventListener("touchend", self.touchEnd, false);
      document.addEventListener("touchcancel", self.touchEnd, false);

    } else {

      var mousedown = false;

      container.addEventListener("mousedown", function(e) {
        if ( ionic.tap.ignoreScrollStart(e) || e.target.tagName === 'SELECT' ) {
          return;
        }
        self.doTouchStart([{
          pageX: e.pageX,
          pageY: e.pageY
        }], e.timeStamp);

        e.preventDefault();
        mousedown = true;
      }, false);

      document.addEventListener("mousemove", function(e) {
        if (!mousedown || e.defaultPrevented) {
          return;
        }

        self.doTouchMove([{
          pageX: e.pageX,
          pageY: e.pageY
        }], e.timeStamp);

        mousedown = true;
      }, false);

      document.addEventListener("mouseup", function(e) {
        if (!mousedown) {
          return;
        }

        self.doTouchEnd(e.timeStamp);

        mousedown = false;
      }, false);

      var wheelShowBarFn = ionic.debounce(function() {
        self.__fadeScrollbars('in');
      }, 500, true);

      var wheelHideBarFn = ionic.debounce(function() {
        self.__fadeScrollbars('out');
      }, 100, false);

      //For Firefox
      document.addEventListener('mousewheel', onMouseWheel);
      function onMouseWheel(e) {
        self.hintResize();
        wheelShowBarFn();
        self.scrollBy(e.wheelDeltaX/self.options.wheelDampen, -e.wheelDeltaY/self.options.wheelDampen);
        wheelHideBarFn();
      }
    }
  },

  /** Create a scroll bar div with the given direction **/
  __createScrollbar: function(direction) {
    var bar = document.createElement('div'),
      indicator = document.createElement('div');

    indicator.className = 'scroll-bar-indicator';

    if(direction == 'h') {
      bar.className = 'scroll-bar scroll-bar-h';
    } else {
      bar.className = 'scroll-bar scroll-bar-v';
    }

    bar.appendChild(indicator);
    return bar;
  },

  __createScrollbars: function() {
    var indicatorX, indicatorY;

    if(this.options.scrollingX) {
      indicatorX = {
        el: this.__createScrollbar('h'),
        sizeRatio: 1
      };
      indicatorX.indicator = indicatorX.el.children[0];

      if(this.options.scrollbarX) {
        this.__container.appendChild(indicatorX.el);
      }
      this.__indicatorX = indicatorX;
    }

    if(this.options.scrollingY) {
      indicatorY = {
        el: this.__createScrollbar('v'),
        sizeRatio: 1
      };
      indicatorY.indicator = indicatorY.el.children[0];

      if(this.options.scrollbarY) {
        this.__container.appendChild(indicatorY.el);
      }
      this.__indicatorY = indicatorY;
    }
  },

  __resizeScrollbars: function() {
    var self = this;

    // Update horiz bar
    if(self.__indicatorX) {
      var width = Math.max(Math.round(self.__clientWidth * self.__clientWidth / (self.__contentWidth)), 20);
      if(width > self.__contentWidth) {
        width = 0;
      }
      self.__indicatorX.size = width;
      self.__indicatorX.minScale = this.options.minScrollbarSizeX / width;
      self.__indicatorX.indicator.style.width = width + 'px';
      self.__indicatorX.maxPos = self.__clientWidth - width;
      self.__indicatorX.sizeRatio = self.__maxScrollLeft ? self.__indicatorX.maxPos / self.__maxScrollLeft : 1;
    }

    // Update vert bar
    if(self.__indicatorY) {
      var height = Math.max(Math.round(self.__clientHeight * self.__clientHeight / (self.__contentHeight)), 20);
      if(height > self.__contentHeight) {
        height = 0;
      }
      self.__indicatorY.size = height;
      self.__indicatorY.minScale = this.options.minScrollbarSizeY / height;
      self.__indicatorY.maxPos = self.__clientHeight - height;
      self.__indicatorY.indicator.style.height = height + 'px';
      self.__indicatorY.sizeRatio = self.__maxScrollTop ? self.__indicatorY.maxPos / self.__maxScrollTop : 1;
    }
  },

  /**
   * Move and scale the scrollbars as the page scrolls.
   */
  __repositionScrollbars: function() {
    var self = this, width, heightScale,
        widthDiff, heightDiff,
        x, y,
        xstop = 0, ystop = 0;

    if(self.__indicatorX) {
      // Handle the X scrollbar

      // Don't go all the way to the right if we have a vertical scrollbar as well
      if(self.__indicatorY) xstop = 10;

      x = Math.round(self.__indicatorX.sizeRatio * self.__scrollLeft) || 0,

      // The the difference between the last content X position, and our overscrolled one
      widthDiff = self.__scrollLeft - (self.__maxScrollLeft - xstop);

      if(self.__scrollLeft < 0) {

        widthScale = Math.max(self.__indicatorX.minScale,
            (self.__indicatorX.size - Math.abs(self.__scrollLeft)) / self.__indicatorX.size);

        // Stay at left
        x = 0;

        // Make sure scale is transformed from the left/center origin point
        self.__indicatorX.indicator.style[self.__transformOriginProperty] = 'left center';
      } else if(widthDiff > 0) {

        widthScale = Math.max(self.__indicatorX.minScale,
            (self.__indicatorX.size - widthDiff) / self.__indicatorX.size);

        // Stay at the furthest x for the scrollable viewport
        x = self.__indicatorX.maxPos - xstop;

        // Make sure scale is transformed from the right/center origin point
        self.__indicatorX.indicator.style[self.__transformOriginProperty] = 'right center';

      } else {

        // Normal motion
        x = Math.min(self.__maxScrollLeft, Math.max(0, x));
        widthScale = 1;

      }

      self.__indicatorX.indicator.style[self.__transformProperty] = 'translate3d(' + x + 'px, 0, 0) scaleX(' + widthScale + ')';
    }

    if(self.__indicatorY) {

      y = Math.round(self.__indicatorY.sizeRatio * self.__scrollTop) || 0;

      // Don't go all the way to the right if we have a vertical scrollbar as well
      if(self.__indicatorX) ystop = 10;

      heightDiff = self.__scrollTop - (self.__maxScrollTop - ystop);

      if(self.__scrollTop < 0) {

        heightScale = Math.max(self.__indicatorY.minScale, (self.__indicatorY.size - Math.abs(self.__scrollTop)) / self.__indicatorY.size);

        // Stay at top
        y = 0;

        // Make sure scale is transformed from the center/top origin point
        self.__indicatorY.indicator.style[self.__transformOriginProperty] = 'center top';

      } else if(heightDiff > 0) {

        heightScale = Math.max(self.__indicatorY.minScale, (self.__indicatorY.size - heightDiff) / self.__indicatorY.size);

        // Stay at bottom of scrollable viewport
        y = self.__indicatorY.maxPos - ystop;

        // Make sure scale is transformed from the center/bottom origin point
        self.__indicatorY.indicator.style[self.__transformOriginProperty] = 'center bottom';

      } else {

        // Normal motion
        y = Math.min(self.__maxScrollTop, Math.max(0, y));
        heightScale = 1;

      }

      self.__indicatorY.indicator.style[self.__transformProperty] = 'translate3d(0,' + y + 'px, 0) scaleY(' + heightScale + ')';
    }
  },

  __fadeScrollbars: function(direction, delay) {
    var self = this;

    if(!this.options.scrollbarsFade) {
      return;
    }

    var className = 'scroll-bar-fade-out';

    if(self.options.scrollbarsFade === true) {
      clearTimeout(self.__scrollbarFadeTimeout);

      if(direction == 'in') {
        if(self.__indicatorX) { self.__indicatorX.indicator.classList.remove(className); }
        if(self.__indicatorY) { self.__indicatorY.indicator.classList.remove(className); }
      } else {
        self.__scrollbarFadeTimeout = setTimeout(function() {
          if(self.__indicatorX) { self.__indicatorX.indicator.classList.add(className); }
          if(self.__indicatorY) { self.__indicatorY.indicator.classList.add(className); }
        }, delay || self.options.scrollbarFadeDelay);
      }
    }
  },

  __scrollingComplete: function() {
    var self = this;
    self.options.scrollingComplete();

    self.__fadeScrollbars('out');
  },

  resize: function() {
    // Update Scroller dimensions for changed content
    // Add padding to bottom of content
    this.setDimensions(
    	this.__container.clientWidth,
    	this.__container.clientHeight,
      this.options.getContentWidth(),
      this.options.getContentHeight()
    );
  },
  /*
  ---------------------------------------------------------------------------
    PUBLIC API
  ---------------------------------------------------------------------------
  */

  getRenderFn: function() {
    var self = this;

    var content = this.__content;

    var docStyle = document.documentElement.style;

    var engine;
    if ('MozAppearance' in docStyle) {
      engine = 'gecko';
    } else if ('WebkitAppearance' in docStyle) {
      engine = 'webkit';
    } else if (typeof navigator.cpuClass === 'string') {
      engine = 'trident';
    }

    var vendorPrefix = {
      trident: 'ms',
      gecko: 'Moz',
      webkit: 'Webkit',
      presto: 'O'
    }[engine];

    var helperElem = document.createElement("div");
    var undef;

    var perspectiveProperty = vendorPrefix + "Perspective";
    var transformProperty = vendorPrefix + "Transform";
    var transformOriginProperty = vendorPrefix + 'TransformOrigin';

    self.__perspectiveProperty = transformProperty;
    self.__transformProperty = transformProperty;
    self.__transformOriginProperty = transformOriginProperty;

    if (helperElem.style[perspectiveProperty] !== undef) {

      return function(left, top, zoom, wasResize) {
        content.style[transformProperty] = 'translate3d(' + (-left) + 'px,' + (-top) + 'px,0) scale(' + zoom + ')';
        self.__repositionScrollbars();
        if(!wasResize) {
          self.triggerScrollEvent();
        }
      };

    } else if (helperElem.style[transformProperty] !== undef) {

      return function(left, top, zoom, wasResize) {
        content.style[transformProperty] = 'translate(' + (-left) + 'px,' + (-top) + 'px) scale(' + zoom + ')';
        self.__repositionScrollbars();
        if(!wasResize) {
          self.triggerScrollEvent();
        }
      };

    } else {

      return function(left, top, zoom, wasResize) {
        content.style.marginLeft = left ? (-left/zoom) + 'px' : '';
        content.style.marginTop = top ? (-top/zoom) + 'px' : '';
        content.style.zoom = zoom || '';
        self.__repositionScrollbars();
        if(!wasResize) {
          self.triggerScrollEvent();
        }
      };

    }
  },


  /**
   * Configures the dimensions of the client (outer) and content (inner) elements.
   * Requires the available space for the outer element and the outer size of the inner element.
   * All values which are falsy (null or zero etc.) are ignored and the old value is kept.
   *
   * @param clientWidth {Integer} Inner width of outer element
   * @param clientHeight {Integer} Inner height of outer element
   * @param contentWidth {Integer} Outer width of inner element
   * @param contentHeight {Integer} Outer height of inner element
   */
  setDimensions: function(clientWidth, clientHeight, contentWidth, contentHeight) {
    var self = this;

    // Only update values which are defined
    if (clientWidth === +clientWidth) {
      self.__clientWidth = clientWidth;
    }

    if (clientHeight === +clientHeight) {
      self.__clientHeight = clientHeight;
    }

    if (contentWidth === +contentWidth) {
      self.__contentWidth = contentWidth;
    }

    if (contentHeight === +contentHeight) {
      self.__contentHeight = contentHeight;
    }

    // Refresh maximums
    self.__computeScrollMax();
    self.__resizeScrollbars();

    // Refresh scroll position
    self.scrollTo(self.__scrollLeft, self.__scrollTop, true, null, true);

  },


  /**
   * Sets the client coordinates in relation to the document.
   *
   * @param left {Integer} Left position of outer element
   * @param top {Integer} Top position of outer element
   */
  setPosition: function(left, top) {

    var self = this;

    self.__clientLeft = left || 0;
    self.__clientTop = top || 0;

  },


  /**
   * Configures the snapping (when snapping is active)
   *
   * @param width {Integer} Snapping width
   * @param height {Integer} Snapping height
   */
  setSnapSize: function(width, height) {

    var self = this;

    self.__snapWidth = width;
    self.__snapHeight = height;

  },


  /**
   * Activates pull-to-refresh. A special zone on the top of the list to start a list refresh whenever
   * the user event is released during visibility of this zone. This was introduced by some apps on iOS like
   * the official Twitter client.
   *
   * @param height {Integer} Height of pull-to-refresh zone on top of rendered list
   * @param activateCallback {Function} Callback to execute on activation. This is for signalling the user about a refresh is about to happen when he release.
   * @param deactivateCallback {Function} Callback to execute on deactivation. This is for signalling the user about the refresh being cancelled.
   * @param startCallback {Function} Callback to execute to start the real async refresh action. Call {@link #finishPullToRefresh} after finish of refresh.
   */
  activatePullToRefresh: function(height, activateCallback, deactivateCallback, startCallback) {

    var self = this;

    self.__refreshHeight = height;
    self.__refreshActivate = activateCallback;
    self.__refreshDeactivate = deactivateCallback;
    self.__refreshStart = startCallback;

  },


  /**
   * Starts pull-to-refresh manually.
   */
  triggerPullToRefresh: function() {
    // Use publish instead of scrollTo to allow scrolling to out of boundary position
    // We don't need to normalize scrollLeft, zoomLevel, etc. here because we only y-scrolling when pull-to-refresh is enabled
    this.__publish(this.__scrollLeft, -this.__refreshHeight, this.__zoomLevel, true);

    if (this.__refreshStart) {
      this.__refreshStart();
    }
  },


  /**
   * Signalizes that pull-to-refresh is finished.
   */
  finishPullToRefresh: function() {

    var self = this;

    self.__refreshActive = false;
    if (self.__refreshDeactivate) {
      self.__refreshDeactivate();
    }

    self.scrollTo(self.__scrollLeft, self.__scrollTop, true);

  },


  /**
   * Returns the scroll position and zooming values
   *
   * @return {Map} `left` and `top` scroll position and `zoom` level
   */
  getValues: function() {

    var self = this;

    return {
      left: self.__scrollLeft,
      top: self.__scrollTop,
      zoom: self.__zoomLevel
    };

  },


  /**
   * Returns the maximum scroll values
   *
   * @return {Map} `left` and `top` maximum scroll values
   */
  getScrollMax: function() {

    var self = this;

    return {
      left: self.__maxScrollLeft,
      top: self.__maxScrollTop
    };

  },


  /**
   * Zooms to the given level. Supports optional animation. Zooms
   * the center when no coordinates are given.
   *
   * @param level {Number} Level to zoom to
   * @param animate {Boolean} Whether to use animation
   * @param originLeft {Number} Zoom in at given left coordinate
   * @param originTop {Number} Zoom in at given top coordinate
   */
  zoomTo: function(level, animate, originLeft, originTop) {

    var self = this;

    if (!self.options.zooming) {
      throw new Error("Zooming is not enabled!");
    }

    // Stop deceleration
    if (self.__isDecelerating) {
      zyngaCore.effect.Animate.stop(self.__isDecelerating);
      self.__isDecelerating = false;
    }

    var oldLevel = self.__zoomLevel;

    // Normalize input origin to center of viewport if not defined
    if (originLeft == null) {
      originLeft = self.__clientWidth / 2;
    }

    if (originTop == null) {
      originTop = self.__clientHeight / 2;
    }

    // Limit level according to configuration
    level = Math.max(Math.min(level, self.options.maxZoom), self.options.minZoom);

    // Recompute maximum values while temporary tweaking maximum scroll ranges
    self.__computeScrollMax(level);

    // Recompute left and top coordinates based on new zoom level
    var left = ((originLeft + self.__scrollLeft) * level / oldLevel) - originLeft;
    var top = ((originTop + self.__scrollTop) * level / oldLevel) - originTop;

    // Limit x-axis
    if (left > self.__maxScrollLeft) {
      left = self.__maxScrollLeft;
    } else if (left < 0) {
      left = 0;
    }

    // Limit y-axis
    if (top > self.__maxScrollTop) {
      top = self.__maxScrollTop;
    } else if (top < 0) {
      top = 0;
    }

    // Push values out
    self.__publish(left, top, level, animate);

  },


  /**
   * Zooms the content by the given factor.
   *
   * @param factor {Number} Zoom by given factor
   * @param animate {Boolean} Whether to use animation
   * @param originLeft {Number} Zoom in at given left coordinate
   * @param originTop {Number} Zoom in at given top coordinate
   */
  zoomBy: function(factor, animate, originLeft, originTop) {

    var self = this;

    self.zoomTo(self.__zoomLevel * factor, animate, originLeft, originTop);

  },


  /**
   * Scrolls to the given position. Respect limitations and snapping automatically.
   *
   * @param left {Number} Horizontal scroll position, keeps current if value is <code>null</code>
   * @param top {Number} Vertical scroll position, keeps current if value is <code>null</code>
   * @param animate {Boolean} Whether the scrolling should happen using an animation
   * @param zoom {Number} Zoom level to go to
   */
  scrollTo: function(left, top, animate, zoom, wasResize) {
    var self = this;

    // Stop deceleration
    if (self.__isDecelerating) {
      zyngaCore.effect.Animate.stop(self.__isDecelerating);
      self.__isDecelerating = false;
    }

    // Correct coordinates based on new zoom level
    if (zoom != null && zoom !== self.__zoomLevel) {

      if (!self.options.zooming) {
        throw new Error("Zooming is not enabled!");
      }

      left *= zoom;
      top *= zoom;

      // Recompute maximum values while temporary tweaking maximum scroll ranges
      self.__computeScrollMax(zoom);

    } else {

      // Keep zoom when not defined
      zoom = self.__zoomLevel;

    }

    if (!self.options.scrollingX) {

      left = self.__scrollLeft;

    } else {

      if (self.options.paging) {
        left = Math.round(left / self.__clientWidth) * self.__clientWidth;
      } else if (self.options.snapping) {
        left = Math.round(left / self.__snapWidth) * self.__snapWidth;
      }

    }

    if (!self.options.scrollingY) {

      top = self.__scrollTop;

    } else {

      if (self.options.paging) {
        top = Math.round(top / self.__clientHeight) * self.__clientHeight;
      } else if (self.options.snapping) {
        top = Math.round(top / self.__snapHeight) * self.__snapHeight;
      }

    }

    // Limit for allowed ranges
    left = Math.max(Math.min(self.__maxScrollLeft, left), 0);
    top = Math.max(Math.min(self.__maxScrollTop, top), 0);

    // Don't animate when no change detected, still call publish to make sure
    // that rendered position is really in-sync with internal data
    if (left === self.__scrollLeft && top === self.__scrollTop) {
      animate = false;
    }

    // Publish new values
    self.__publish(left, top, zoom, animate, wasResize);

  },


  /**
   * Scroll by the given offset
   *
   * @param left {Number} Scroll x-axis by given offset
   * @param top {Number} Scroll y-axis by given offset
   * @param animate {Boolean} Whether to animate the given change
   */
  scrollBy: function(left, top, animate) {

    var self = this;

    var startLeft = self.__isAnimating ? self.__scheduledLeft : self.__scrollLeft;
    var startTop = self.__isAnimating ? self.__scheduledTop : self.__scrollTop;

    self.scrollTo(startLeft + (left || 0), startTop + (top || 0), animate);

  },



  /*
  ---------------------------------------------------------------------------
    EVENT CALLBACKS
  ---------------------------------------------------------------------------
  */

  /**
   * Mouse wheel handler for zooming support
   */
  doMouseZoom: function(wheelDelta, timeStamp, pageX, pageY) {

    var self = this;
    var change = wheelDelta > 0 ? 0.97 : 1.03;

    return self.zoomTo(self.__zoomLevel * change, false, pageX - self.__clientLeft, pageY - self.__clientTop);

  },


  /**
   * Touch start handler for scrolling support
   */
  doTouchStart: function(touches, timeStamp) {
    this.hintResize();

    // Array-like check is enough here
    if (touches.length == null) {
      throw new Error("Invalid touch list: " + touches);
    }

    if (timeStamp instanceof Date) {
      timeStamp = timeStamp.valueOf();
    }
    if (typeof timeStamp !== "number") {
      throw new Error("Invalid timestamp value: " + timeStamp);
    }

    var self = this;

    // Reset interruptedAnimation flag
    self.__interruptedAnimation = true;

    // Stop deceleration
    if (self.__isDecelerating) {
      zyngaCore.effect.Animate.stop(self.__isDecelerating);
      self.__isDecelerating = false;
      self.__interruptedAnimation = true;
    }

    // Stop animation
    if (self.__isAnimating) {
      zyngaCore.effect.Animate.stop(self.__isAnimating);
      self.__isAnimating = false;
      self.__interruptedAnimation = true;
    }

    // Use center point when dealing with two fingers
    var currentTouchLeft, currentTouchTop;
    var isSingleTouch = touches.length === 1;
    if (isSingleTouch) {
      currentTouchLeft = touches[0].pageX;
      currentTouchTop = touches[0].pageY;
    } else {
      currentTouchLeft = Math.abs(touches[0].pageX + touches[1].pageX) / 2;
      currentTouchTop = Math.abs(touches[0].pageY + touches[1].pageY) / 2;
    }

    // Store initial positions
    self.__initialTouchLeft = currentTouchLeft;
    self.__initialTouchTop = currentTouchTop;

    // Store current zoom level
    self.__zoomLevelStart = self.__zoomLevel;

    // Store initial touch positions
    self.__lastTouchLeft = currentTouchLeft;
    self.__lastTouchTop = currentTouchTop;

    // Store initial move time stamp
    self.__lastTouchMove = timeStamp;

    // Reset initial scale
    self.__lastScale = 1;

    // Reset locking flags
    self.__enableScrollX = !isSingleTouch && self.options.scrollingX;
    self.__enableScrollY = !isSingleTouch && self.options.scrollingY;

    // Reset tracking flag
    self.__isTracking = true;

    // Reset deceleration complete flag
    self.__didDecelerationComplete = false;

    // Dragging starts directly with two fingers, otherwise lazy with an offset
    self.__isDragging = !isSingleTouch;

    // Some features are disabled in multi touch scenarios
    self.__isSingleTouch = isSingleTouch;

    // Clearing data structure
    self.__positions = [];

  },


  /**
   * Touch move handler for scrolling support
   */
  doTouchMove: function(touches, timeStamp, scale) {

    // Array-like check is enough here
    if (touches.length == null) {
      throw new Error("Invalid touch list: " + touches);
    }

    if (timeStamp instanceof Date) {
      timeStamp = timeStamp.valueOf();
    }
    if (typeof timeStamp !== "number") {
      throw new Error("Invalid timestamp value: " + timeStamp);
    }

    var self = this;

    // Ignore event when tracking is not enabled (event might be outside of element)
    if (!self.__isTracking) {
      return;
    }


    var currentTouchLeft, currentTouchTop;

    // Compute move based around of center of fingers
    if (touches.length === 2) {
      currentTouchLeft = Math.abs(touches[0].pageX + touches[1].pageX) / 2;
      currentTouchTop = Math.abs(touches[0].pageY + touches[1].pageY) / 2;
    } else {
      currentTouchLeft = touches[0].pageX;
      currentTouchTop = touches[0].pageY;
    }

    var positions = self.__positions;

    // Are we already is dragging mode?
    if (self.__isDragging) {

      // Compute move distance
      var moveX = currentTouchLeft - self.__lastTouchLeft;
      var moveY = currentTouchTop - self.__lastTouchTop;

      // Read previous scroll position and zooming
      var scrollLeft = self.__scrollLeft;
      var scrollTop = self.__scrollTop;
      var level = self.__zoomLevel;

      // Work with scaling
      if (scale != null && self.options.zooming) {

        var oldLevel = level;

        // Recompute level based on previous scale and new scale
        level = level / self.__lastScale * scale;

        // Limit level according to configuration
        level = Math.max(Math.min(level, self.options.maxZoom), self.options.minZoom);

        // Only do further compution when change happened
        if (oldLevel !== level) {

          // Compute relative event position to container
          var currentTouchLeftRel = currentTouchLeft - self.__clientLeft;
          var currentTouchTopRel = currentTouchTop - self.__clientTop;

          // Recompute left and top coordinates based on new zoom level
          scrollLeft = ((currentTouchLeftRel + scrollLeft) * level / oldLevel) - currentTouchLeftRel;
          scrollTop = ((currentTouchTopRel + scrollTop) * level / oldLevel) - currentTouchTopRel;

          // Recompute max scroll values
          self.__computeScrollMax(level);

        }
      }

      if (self.__enableScrollX) {

        scrollLeft -= moveX * this.options.speedMultiplier;
        var maxScrollLeft = self.__maxScrollLeft;

        if (scrollLeft > maxScrollLeft || scrollLeft < 0) {

          // Slow down on the edges
          if (self.options.bouncing) {

            scrollLeft += (moveX / 2  * this.options.speedMultiplier);

          } else if (scrollLeft > maxScrollLeft) {

            scrollLeft = maxScrollLeft;

          } else {

            scrollLeft = 0;

          }
        }
      }

      // Compute new vertical scroll position
      if (self.__enableScrollY) {

        scrollTop -= moveY * this.options.speedMultiplier;
        var maxScrollTop = self.__maxScrollTop;

        if (scrollTop > maxScrollTop || scrollTop < 0) {

          // Slow down on the edges
          if (self.options.bouncing || (self.__refreshHeight && scrollTop < 0)) {

            scrollTop += (moveY / 2 * this.options.speedMultiplier);

            // Support pull-to-refresh (only when only y is scrollable)
            if (!self.__enableScrollX && self.__refreshHeight != null) {

              if (!self.__refreshActive && scrollTop <= -self.__refreshHeight) {

                self.__refreshActive = true;
                if (self.__refreshActivate) {
                  self.__refreshActivate();
                }

              } else if (self.__refreshActive && scrollTop > -self.__refreshHeight) {

                self.__refreshActive = false;
                if (self.__refreshDeactivate) {
                  self.__refreshDeactivate();
                }

              }
            }

          } else if (scrollTop > maxScrollTop) {

            scrollTop = maxScrollTop;

          } else {

            scrollTop = 0;

          }
        }
      }

      // Keep list from growing infinitely (holding min 10, max 20 measure points)
      if (positions.length > 60) {
        positions.splice(0, 30);
      }

      // Track scroll movement for decleration
      positions.push(scrollLeft, scrollTop, timeStamp);

      // Sync scroll position
      self.__publish(scrollLeft, scrollTop, level);

    // Otherwise figure out whether we are switching into dragging mode now.
    } else {

      var minimumTrackingForScroll = self.options.locking ? 3 : 0;
      var minimumTrackingForDrag = 5;

      var distanceX = Math.abs(currentTouchLeft - self.__initialTouchLeft);
      var distanceY = Math.abs(currentTouchTop - self.__initialTouchTop);

      self.__enableScrollX = self.options.scrollingX && distanceX >= minimumTrackingForScroll;
      self.__enableScrollY = self.options.scrollingY && distanceY >= minimumTrackingForScroll;

      positions.push(self.__scrollLeft, self.__scrollTop, timeStamp);

      self.__isDragging = (self.__enableScrollX || self.__enableScrollY) && (distanceX >= minimumTrackingForDrag || distanceY >= minimumTrackingForDrag);
      if (self.__isDragging) {
        self.__interruptedAnimation = false;
        self.__fadeScrollbars('in');
      }

    }

    // Update last touch positions and time stamp for next event
    self.__lastTouchLeft = currentTouchLeft;
    self.__lastTouchTop = currentTouchTop;
    self.__lastTouchMove = timeStamp;
    self.__lastScale = scale;

  },


  /**
   * Touch end handler for scrolling support
   */
  doTouchEnd: function(timeStamp) {

    if (timeStamp instanceof Date) {
      timeStamp = timeStamp.valueOf();
    }
    if (typeof timeStamp !== "number") {
      throw new Error("Invalid timestamp value: " + timeStamp);
    }

    var self = this;

    // Ignore event when tracking is not enabled (no touchstart event on element)
    // This is required as this listener ('touchmove') sits on the document and not on the element itself.
    if (!self.__isTracking) {
      return;
    }

    // Not touching anymore (when two finger hit the screen there are two touch end events)
    self.__isTracking = false;

    // Be sure to reset the dragging flag now. Here we also detect whether
    // the finger has moved fast enough to switch into a deceleration animation.
    if (self.__isDragging) {

      // Reset dragging flag
      self.__isDragging = false;

      // Start deceleration
      // Verify that the last move detected was in some relevant time frame
      if (self.__isSingleTouch && self.options.animating && (timeStamp - self.__lastTouchMove) <= 100) {

        // Then figure out what the scroll position was about 100ms ago
        var positions = self.__positions;
        var endPos = positions.length - 1;
        var startPos = endPos;

        // Move pointer to position measured 100ms ago
        for (var i = endPos; i > 0 && positions[i] > (self.__lastTouchMove - 100); i -= 3) {
          startPos = i;
        }

        // If start and stop position is identical in a 100ms timeframe,
        // we cannot compute any useful deceleration.
        if (startPos !== endPos) {

          // Compute relative movement between these two points
          var timeOffset = positions[endPos] - positions[startPos];
          var movedLeft = self.__scrollLeft - positions[startPos - 2];
          var movedTop = self.__scrollTop - positions[startPos - 1];

          // Based on 50ms compute the movement to apply for each render step
          self.__decelerationVelocityX = movedLeft / timeOffset * (1000 / 60);
          self.__decelerationVelocityY = movedTop / timeOffset * (1000 / 60);

          // How much velocity is required to start the deceleration
          var minVelocityToStartDeceleration = self.options.paging || self.options.snapping ? 4 : 1;

          // Verify that we have enough velocity to start deceleration
          if (Math.abs(self.__decelerationVelocityX) > minVelocityToStartDeceleration || Math.abs(self.__decelerationVelocityY) > minVelocityToStartDeceleration) {

            // Deactivate pull-to-refresh when decelerating
            if (!self.__refreshActive) {
              self.__startDeceleration(timeStamp);
            }
          }
        } else {
          self.__scrollingComplete();
        }
      } else if ((timeStamp - self.__lastTouchMove) > 100) {
        self.__scrollingComplete();
      }
    }

    // If this was a slower move it is per default non decelerated, but this
    // still means that we want snap back to the bounds which is done here.
    // This is placed outside the condition above to improve edge case stability
    // e.g. touchend fired without enabled dragging. This should normally do not
    // have modified the scroll positions or even showed the scrollbars though.
    if (!self.__isDecelerating) {

      if (self.__refreshActive && self.__refreshStart) {

        // Use publish instead of scrollTo to allow scrolling to out of boundary position
        // We don't need to normalize scrollLeft, zoomLevel, etc. here because we only y-scrolling when pull-to-refresh is enabled
        self.__publish(self.__scrollLeft, -self.__refreshHeight, self.__zoomLevel, true);

        if (self.__refreshStart) {
          self.__refreshStart();
        }

      } else {

        if (self.__interruptedAnimation || self.__isDragging) {
          self.__scrollingComplete();
        }
        self.scrollTo(self.__scrollLeft, self.__scrollTop, true, self.__zoomLevel);

        // Directly signalize deactivation (nothing todo on refresh?)
        if (self.__refreshActive) {

          self.__refreshActive = false;
          if (self.__refreshDeactivate) {
            self.__refreshDeactivate();
          }

        }
      }
    }

    // Fully cleanup list
    self.__positions.length = 0;

  },



  /*
  ---------------------------------------------------------------------------
    PRIVATE API
  ---------------------------------------------------------------------------
  */

  /**
   * Applies the scroll position to the content element
   *
   * @param left {Number} Left scroll position
   * @param top {Number} Top scroll position
   * @param animate {Boolean} Whether animation should be used to move to the new coordinates
   */
  __publish: function(left, top, zoom, animate, wasResize) {

    var self = this;

    // Remember whether we had an animation, then we try to continue based on the current "drive" of the animation
    var wasAnimating = self.__isAnimating;
    if (wasAnimating) {
      zyngaCore.effect.Animate.stop(wasAnimating);
      self.__isAnimating = false;
    }

    if (animate && self.options.animating) {

      // Keep scheduled positions for scrollBy/zoomBy functionality
      self.__scheduledLeft = left;
      self.__scheduledTop = top;
      self.__scheduledZoom = zoom;

      var oldLeft = self.__scrollLeft;
      var oldTop = self.__scrollTop;
      var oldZoom = self.__zoomLevel;

      var diffLeft = left - oldLeft;
      var diffTop = top - oldTop;
      var diffZoom = zoom - oldZoom;

      var step = function(percent, now, render) {

        if (render) {

          self.__scrollLeft = oldLeft + (diffLeft * percent);
          self.__scrollTop = oldTop + (diffTop * percent);
          self.__zoomLevel = oldZoom + (diffZoom * percent);

          // Push values out
          if (self.__callback) {
            self.__callback(self.__scrollLeft, self.__scrollTop, self.__zoomLevel, wasResize);
          }

        }
      };

      var verify = function(id) {
        return self.__isAnimating === id;
      };

      var completed = function(renderedFramesPerSecond, animationId, wasFinished) {
        if (animationId === self.__isAnimating) {
          self.__isAnimating = false;
        }
        if (self.__didDecelerationComplete || wasFinished) {
          self.__scrollingComplete();
        }

        if (self.options.zooming) {
          self.__computeScrollMax();
        }
      };

      // When continuing based on previous animation we choose an ease-out animation instead of ease-in-out
      self.__isAnimating = zyngaCore.effect.Animate.start(step, verify, completed, self.options.animationDuration, wasAnimating ? easeOutCubic : easeInOutCubic);

    } else {

      self.__scheduledLeft = self.__scrollLeft = left;
      self.__scheduledTop = self.__scrollTop = top;
      self.__scheduledZoom = self.__zoomLevel = zoom;

      // Push values out
      if (self.__callback) {
        self.__callback(left, top, zoom, wasResize);
      }

      // Fix max scroll ranges
      if (self.options.zooming) {
        self.__computeScrollMax();
      }
    }
  },


  /**
   * Recomputes scroll minimum values based on client dimensions and content dimensions.
   */
  __computeScrollMax: function(zoomLevel) {

    var self = this;

    if (zoomLevel == null) {
      zoomLevel = self.__zoomLevel;
    }

    self.__maxScrollLeft = Math.max((self.__contentWidth * zoomLevel) - self.__clientWidth, 0);
    self.__maxScrollTop = Math.max((self.__contentHeight * zoomLevel) - self.__clientHeight, 0);

    if(!self.__didWaitForSize && self.__maxScrollLeft == 0 && self.__maxScrollTop == 0) {
      self.__didWaitForSize = true;
      self.__waitForSize();
    }
  },


  /**
   * If the scroll view isn't sized correctly on start, wait until we have at least some size
   */
  __waitForSize: function() {

    var self = this;

    clearTimeout(self.__sizerTimeout);

    var sizer = function() {
      self.resize();

      if((self.options.scrollingX && self.__maxScrollLeft == 0) || (self.options.scrollingY && self.__maxScrollTop == 0)) {
        //self.__sizerTimeout = setTimeout(sizer, 1000);
      }
    };

    sizer();
    self.__sizerTimeout = setTimeout(sizer, 1000);
  },

  /*
  ---------------------------------------------------------------------------
    ANIMATION (DECELERATION) SUPPORT
  ---------------------------------------------------------------------------
  */

  /**
   * Called when a touch sequence end and the speed of the finger was high enough
   * to switch into deceleration mode.
   */
  __startDeceleration: function(timeStamp) {

    var self = this;

    if (self.options.paging) {

      var scrollLeft = Math.max(Math.min(self.__scrollLeft, self.__maxScrollLeft), 0);
      var scrollTop = Math.max(Math.min(self.__scrollTop, self.__maxScrollTop), 0);
      var clientWidth = self.__clientWidth;
      var clientHeight = self.__clientHeight;

      // We limit deceleration not to the min/max values of the allowed range, but to the size of the visible client area.
      // Each page should have exactly the size of the client area.
      self.__minDecelerationScrollLeft = Math.floor(scrollLeft / clientWidth) * clientWidth;
      self.__minDecelerationScrollTop = Math.floor(scrollTop / clientHeight) * clientHeight;
      self.__maxDecelerationScrollLeft = Math.ceil(scrollLeft / clientWidth) * clientWidth;
      self.__maxDecelerationScrollTop = Math.ceil(scrollTop / clientHeight) * clientHeight;

    } else {

      self.__minDecelerationScrollLeft = 0;
      self.__minDecelerationScrollTop = 0;
      self.__maxDecelerationScrollLeft = self.__maxScrollLeft;
      self.__maxDecelerationScrollTop = self.__maxScrollTop;

    }

    // Wrap class method
    var step = function(percent, now, render) {
      self.__stepThroughDeceleration(render);
    };

    // How much velocity is required to keep the deceleration running
    self.__minVelocityToKeepDecelerating = self.options.snapping ? 4 : 0.1;

    // Detect whether it's still worth to continue animating steps
    // If we are already slow enough to not being user perceivable anymore, we stop the whole process here.
    var verify = function() {
      var shouldContinue = Math.abs(self.__decelerationVelocityX) >= self.__minVelocityToKeepDecelerating ||
        Math.abs(self.__decelerationVelocityY) >= self.__minVelocityToKeepDecelerating;
      if (!shouldContinue) {
        self.__didDecelerationComplete = true;
      }
      return shouldContinue;
    };

    var completed = function(renderedFramesPerSecond, animationId, wasFinished) {
      self.__isDecelerating = false;
      if (self.__didDecelerationComplete) {
        self.__scrollingComplete();
      }

      // Animate to grid when snapping is active, otherwise just fix out-of-boundary positions
      if(self.options.paging) {
        self.scrollTo(self.__scrollLeft, self.__scrollTop, self.options.snapping);
      }
    };

    // Start animation and switch on flag
    self.__isDecelerating = zyngaCore.effect.Animate.start(step, verify, completed);

  },


  /**
   * Called on every step of the animation
   *
   * @param inMemory {Boolean} Whether to not render the current step, but keep it in memory only. Used internally only!
   */
  __stepThroughDeceleration: function(render) {

    var self = this;


    //
    // COMPUTE NEXT SCROLL POSITION
    //

    // Add deceleration to scroll position
    var scrollLeft = self.__scrollLeft + self.__decelerationVelocityX;
    var scrollTop = self.__scrollTop + self.__decelerationVelocityY;


    //
    // HARD LIMIT SCROLL POSITION FOR NON BOUNCING MODE
    //

    if (!self.options.bouncing) {

      var scrollLeftFixed = Math.max(Math.min(self.__maxDecelerationScrollLeft, scrollLeft), self.__minDecelerationScrollLeft);
      if (scrollLeftFixed !== scrollLeft) {
        scrollLeft = scrollLeftFixed;
        self.__decelerationVelocityX = 0;
      }

      var scrollTopFixed = Math.max(Math.min(self.__maxDecelerationScrollTop, scrollTop), self.__minDecelerationScrollTop);
      if (scrollTopFixed !== scrollTop) {
        scrollTop = scrollTopFixed;
        self.__decelerationVelocityY = 0;
      }

    }


    //
    // UPDATE SCROLL POSITION
    //

    if (render) {

      self.__publish(scrollLeft, scrollTop, self.__zoomLevel);

    } else {

      self.__scrollLeft = scrollLeft;
      self.__scrollTop = scrollTop;

    }


    //
    // SLOW DOWN
    //

    // Slow down velocity on every iteration
    if (!self.options.paging) {

      // This is the factor applied to every iteration of the animation
      // to slow down the process. This should emulate natural behavior where
      // objects slow down when the initiator of the movement is removed
      var frictionFactor = 0.95;

      self.__decelerationVelocityX *= frictionFactor;
      self.__decelerationVelocityY *= frictionFactor;

    }


    //
    // BOUNCING SUPPORT
    //

    if (self.options.bouncing) {

      var scrollOutsideX = 0;
      var scrollOutsideY = 0;

      // This configures the amount of change applied to deceleration/acceleration when reaching boundaries
      var penetrationDeceleration = self.options.penetrationDeceleration;
      var penetrationAcceleration = self.options.penetrationAcceleration;

      // Check limits
      if (scrollLeft < self.__minDecelerationScrollLeft) {
        scrollOutsideX = self.__minDecelerationScrollLeft - scrollLeft;
      } else if (scrollLeft > self.__maxDecelerationScrollLeft) {
        scrollOutsideX = self.__maxDecelerationScrollLeft - scrollLeft;
      }

      if (scrollTop < self.__minDecelerationScrollTop) {
        scrollOutsideY = self.__minDecelerationScrollTop - scrollTop;
      } else if (scrollTop > self.__maxDecelerationScrollTop) {
        scrollOutsideY = self.__maxDecelerationScrollTop - scrollTop;
      }

      // Slow down until slow enough, then flip back to snap position
      if (scrollOutsideX !== 0) {
        var isHeadingOutwardsX = scrollOutsideX * self.__decelerationVelocityX <= self.__minDecelerationScrollLeft;
        if (isHeadingOutwardsX) {
          self.__decelerationVelocityX += scrollOutsideX * penetrationDeceleration;
        }
        var isStoppedX = Math.abs(self.__decelerationVelocityX) <= self.__minVelocityToKeepDecelerating;
        //If we're not heading outwards, or if the above statement got us below minDeceleration, go back towards bounds
        if (!isHeadingOutwardsX || isStoppedX) {
          self.__decelerationVelocityX = scrollOutsideX * penetrationAcceleration;
        }
      }

      if (scrollOutsideY !== 0) {
        var isHeadingOutwardsY = scrollOutsideY * self.__decelerationVelocityY <= self.__minDecelerationScrollTop;
        if (isHeadingOutwardsY) {
          self.__decelerationVelocityY += scrollOutsideY * penetrationDeceleration;
        }
        var isStoppedY = Math.abs(self.__decelerationVelocityY) <= self.__minVelocityToKeepDecelerating;
        //If we're not heading outwards, or if the above statement got us below minDeceleration, go back towards bounds
        if (!isHeadingOutwardsY || isStoppedY) {
          self.__decelerationVelocityY = scrollOutsideY * penetrationAcceleration;
        }
      }
    }
  }
});

ionic.scroll = {
  isScrolling: false,
  lastTop: 0
};

})(ionic);

(function(ionic) {
'use strict';
  /**
   * An ActionSheet is the slide up menu popularized on iOS.
   *
   * You see it all over iOS apps, where it offers a set of options 
   * triggered after an action.
   */
  ionic.views.ActionSheet = ionic.views.View.inherit({
    initialize: function(opts) {
      this.el = opts.el;
    },
    show: function() {
      // Force a reflow so the animation will actually run
      this.el.offsetWidth;

      this.el.classList.add('active');
    },
    hide: function() {
      // Force a reflow so the animation will actually run
      this.el.offsetWidth;
      this.el.classList.remove('active');
    }
  });

})(ionic);

(function(ionic) {
'use strict';

  ionic.views.HeaderBar = ionic.views.View.inherit({
    initialize: function(opts) {
      this.el = opts.el;

      ionic.extend(this, {
        alignTitle: 'center'
      }, opts);

      this.align();
    },

    align: function(align) {

      align || (align = this.alignTitle);

      // Find the titleEl element
      var titleEl = this.el.querySelector('.title');
      if(!titleEl) {
        return;
      }

      var self = this;
      //We have to rAF here so all of the elements have time to initialize
      ionic.requestAnimationFrame(function() {
        var i, c, childSize;
        var childNodes = self.el.childNodes;
        var leftWidth = 0;
        var rightWidth = 0;
        var isCountingRightWidth = false;

        // Compute how wide the left children are
        // Skip all titles (there may still be two titles, one leaving the dom)
        // Once we encounter a titleEl, realize we are now counting the right-buttons, not left
        for(i = 0; i < childNodes.length; i++) {
          c = childNodes[i];
          if (c.tagName && c.tagName.toLowerCase() == 'h1') {
            isCountingRightWidth = true;
            continue;
          }

          childSize = null;
          if(c.nodeType == 3) {
            childSize = ionic.DomUtil.getTextBounds(c).width;
          } else if(c.nodeType == 1) {
            childSize = c.offsetWidth;
          }
          if(childSize) {
            if (isCountingRightWidth) {
              rightWidth += childSize;
            } else {
              leftWidth += childSize;
            }
          }
        }

        var margin = Math.max(leftWidth, rightWidth) + 10;

        //Reset left and right before setting again
        titleEl.style.left = titleEl.style.right = '';

        // Size and align the header titleEl based on the sizes of the left and
        // right children, and the desired alignment mode
        if(align == 'center') {
          if(margin > 10) {
            titleEl.style.left = margin + 'px';
            titleEl.style.right = margin + 'px';
          }
          if(titleEl.offsetWidth < titleEl.scrollWidth) {
            if(rightWidth > 0) {
              titleEl.style.right = (rightWidth + 5) + 'px';
            }
          }
        } else if(align == 'left') {
          titleEl.classList.add('title-left');
          if(leftWidth > 0) {
            titleEl.style.left = (leftWidth + 15) + 'px';
          }
        } else if(align == 'right') {
          titleEl.classList.add('title-right');
          if(rightWidth > 0) {
            titleEl.style.right = (rightWidth + 15) + 'px';
          }
        }
      });
    }
  });

})(ionic);

(function(ionic) {
'use strict';

  var ITEM_CLASS = 'item';
  var ITEM_CONTENT_CLASS = 'item-content';
  var ITEM_SLIDING_CLASS = 'item-sliding';
  var ITEM_OPTIONS_CLASS = 'item-options';
  var ITEM_PLACEHOLDER_CLASS = 'item-placeholder';
  var ITEM_REORDERING_CLASS = 'item-reordering';
  var ITEM_REORDER_BTN_CLASS = 'item-reorder';

  var DragOp = function() {};
  DragOp.prototype = {
    start: function(e) {
    },
    drag: function(e) {
    },
    end: function(e) {
    },
    isSameItem: function(item) {
      return false;
    }
  };

  var SlideDrag = function(opts) {
    this.dragThresholdX = opts.dragThresholdX || 10;
    this.el = opts.el;
    this.canSwipe = opts.canSwipe;
  };

  SlideDrag.prototype = new DragOp();

  SlideDrag.prototype.start = function(e) {
    var content, buttons, offsetX, buttonsWidth;

    if (!this.canSwipe()) {
      return;
    }

    if(e.target.classList.contains(ITEM_CONTENT_CLASS)) {
      content = e.target;
    } else if(e.target.classList.contains(ITEM_CLASS)) {
      content = e.target.querySelector('.' + ITEM_CONTENT_CLASS);
    } else {
      content = ionic.DomUtil.getParentWithClass(e.target, ITEM_CONTENT_CLASS);
    }

    // If we don't have a content area as one of our children (or ourselves), skip
    if(!content) {
      return;
    }

    // Make sure we aren't animating as we slide
    content.classList.remove(ITEM_SLIDING_CLASS);

    // Grab the starting X point for the item (for example, so we can tell whether it is open or closed to start)
    offsetX = parseFloat(content.style[ionic.CSS.TRANSFORM].replace('translate3d(', '').split(',')[0]) || 0;

    // Grab the buttons
    buttons = content.parentNode.querySelector('.' + ITEM_OPTIONS_CLASS);
    if(!buttons) {
      return;
    }
    buttons.classList.remove('invisible');

    buttonsWidth = buttons.offsetWidth;

    this._currentDrag = {
      buttons: buttons,
      buttonsWidth: buttonsWidth,
      content: content,
      startOffsetX: offsetX
    };
  };

  /**
   * Check if this is the same item that was previously dragged.
   */
  SlideDrag.prototype.isSameItem = function(op) {
    if(op._lastDrag && this._currentDrag) {
      return this._currentDrag.content == op._lastDrag.content;
    }
    return false;
  };

  SlideDrag.prototype.clean = function(e) {
    var lastDrag = this._lastDrag;

    if(!lastDrag) return;

    ionic.requestAnimationFrame(function() {
      lastDrag.content.style[ionic.CSS.TRANSITION] = '';
      lastDrag.content.style[ionic.CSS.TRANSFORM] = '';
      setTimeout(function() {
        lastDrag.buttons && lastDrag.buttons.classList.add('invisible');
      }, 250);
    });
  };

  SlideDrag.prototype.drag = ionic.animationFrameThrottle(function(e) {
    var buttonsWidth;

    // We really aren't dragging
    if(!this._currentDrag) {
      return;
    }

    // Check if we should start dragging. Check if we've dragged past the threshold,
    // or we are starting from the open state.
    if(!this._isDragging &&
        ((Math.abs(e.gesture.deltaX) > this.dragThresholdX) ||
        (Math.abs(this._currentDrag.startOffsetX) > 0)))
    {
      this._isDragging = true;
    }

    if(this._isDragging) {
      buttonsWidth = this._currentDrag.buttonsWidth;

      // Grab the new X point, capping it at zero
      var newX = Math.min(0, this._currentDrag.startOffsetX + e.gesture.deltaX);

      // If the new X position is past the buttons, we need to slow down the drag (rubber band style)
      if(newX < -buttonsWidth) {
        // Calculate the new X position, capped at the top of the buttons
        newX = Math.min(-buttonsWidth, -buttonsWidth + (((e.gesture.deltaX + buttonsWidth) * 0.4)));
      }

      this._currentDrag.content.style[ionic.CSS.TRANSFORM] = 'translate3d(' + newX + 'px, 0, 0)';
      this._currentDrag.content.style[ionic.CSS.TRANSITION] = 'none';
    }
  });

  SlideDrag.prototype.end = function(e, doneCallback) {
    var _this = this;

    // There is no drag, just end immediately
    if(!this._currentDrag) {
      doneCallback && doneCallback();
      return;
    }

    // If we are currently dragging, we want to snap back into place
    // The final resting point X will be the width of the exposed buttons
    var restingPoint = -this._currentDrag.buttonsWidth;

    // Check if the drag didn't clear the buttons mid-point
    // and we aren't moving fast enough to swipe open
    if(e.gesture.deltaX > -(this._currentDrag.buttonsWidth/2)) {

      // If we are going left but too slow, or going right, go back to resting
      if(e.gesture.direction == "left" && Math.abs(e.gesture.velocityX) < 0.3) {
        restingPoint = 0;
      } else if(e.gesture.direction == "right") {
        restingPoint = 0;
      }

    }

    ionic.requestAnimationFrame(function() {
      if(restingPoint === 0) {
        _this._currentDrag.content.style[ionic.CSS.TRANSFORM] = '';
        var buttons = _this._currentDrag.buttons;
        setTimeout(function() {
          buttons && buttons.classList.add('invisible');
        }, 250);
      } else {
        _this._currentDrag.content.style[ionic.CSS.TRANSFORM] = 'translate3d(' + restingPoint + 'px, 0, 0)';
      }
      _this._currentDrag.content.style[ionic.CSS.TRANSITION] = '';


      // Kill the current drag
      _this._lastDrag = _this._currentDrag;
      _this._currentDrag = null;

      // We are done, notify caller
      doneCallback && doneCallback();
    });
  };

  var ReorderDrag = function(opts) {
    this.dragThresholdY = opts.dragThresholdY || 0;
    this.onReorder = opts.onReorder;
    this.listEl = opts.listEl;
    this.el = opts.el;
    this.scrollEl = opts.scrollEl;
    this.scrollView = opts.scrollView;
  };

  ReorderDrag.prototype = new DragOp();

  ReorderDrag.prototype._moveElement = function(e) {
    var y = e.gesture.center.pageY -
      this._currentDrag.elementHeight + 
      this.scrollView.getValues().top -
      this.listEl.offsetTop;
    this.el.style[ionic.CSS.TRANSFORM] = 'translate3d(0, '+y+'px, 0)';
  };

  ReorderDrag.prototype.start = function(e) {
    var content;

    var startIndex = ionic.DomUtil.getChildIndex(this.el, this.el.nodeName.toLowerCase());
    var elementHeight = this.el.scrollHeight;
    var placeholder = this.el.cloneNode(true);

    placeholder.classList.add(ITEM_PLACEHOLDER_CLASS);

    this.el.parentNode.insertBefore(placeholder, this.el);
    this.el.classList.add(ITEM_REORDERING_CLASS);

    this._currentDrag = {
      elementHeight: elementHeight,
      startIndex: startIndex,
      placeholder: placeholder,
      scrollHeight: scroll,
      list: placeholder.parentNode
    };

    this._moveElement(e);
  };

  ReorderDrag.prototype.drag = ionic.animationFrameThrottle(function(e) {
    // We really aren't dragging
    if(!this._currentDrag) {
      return;
    }

    var scrollY = 0;
    var pageY = e.gesture.center.pageY;

    //If we have a scrollView, check scroll boundaries for dragged element and scroll if necessary
    if (this.scrollView) {
      var container = this.scrollEl;

      scrollY = this.scrollView.getValues().top;

      var containerTop = container.offsetTop;
      var pixelsPastTop = containerTop - pageY + this._currentDrag.elementHeight/2;
      var pixelsPastBottom = pageY + this._currentDrag.elementHeight/2 - containerTop - container.offsetHeight;

      if (e.gesture.deltaY < 0 && pixelsPastTop > 0 && scrollY > 0) {
        this.scrollView.scrollBy(null, -pixelsPastTop);
      }
      if (e.gesture.deltaY > 0 && pixelsPastBottom > 0) {
        if (scrollY < this.scrollView.getScrollMax().top) {
          this.scrollView.scrollBy(null, pixelsPastBottom);
        }
      }
    }

    // Check if we should start dragging. Check if we've dragged past the threshold,
    // or we are starting from the open state.
    if(!this._isDragging && Math.abs(e.gesture.deltaY) > this.dragThresholdY) {
      this._isDragging = true;
    }

    if(this._isDragging) {
      this._moveElement(e);

      this._currentDrag.currentY = scrollY + pageY - this._currentDrag.placeholder.parentNode.offsetTop;

      this._reorderItems();
    }
  });

  // When an item is dragged, we need to reorder any items for sorting purposes
  ReorderDrag.prototype._reorderItems = function() {
    var self = this;
    var placeholder = this._currentDrag.placeholder;
    var siblings = Array.prototype.slice.call(this._currentDrag.placeholder.parentNode.children)
      .filter(function(el) {
        return el !== self.el;
      });

    var index = siblings.indexOf(this._currentDrag.placeholder);
    var topSibling = siblings[Math.max(0, index - 1)];
    var bottomSibling = siblings[Math.min(siblings.length, index+1)];
    var thisOffsetTop = this._currentDrag.currentY;// + this._currentDrag.startOffsetTop;

    if(topSibling && (thisOffsetTop < topSibling.offsetTop + topSibling.offsetHeight/2)) {
      ionic.DomUtil.swapNodes(this._currentDrag.placeholder, topSibling);
      return index - 1;
    } else if(bottomSibling && thisOffsetTop > (bottomSibling.offsetTop + bottomSibling.offsetHeight/2)) {
      ionic.DomUtil.swapNodes(bottomSibling, this._currentDrag.placeholder);
      return index + 1;
    }
  };

  ReorderDrag.prototype.end = function(e, doneCallback) {
    if(!this._currentDrag) {
      doneCallback && doneCallback();
      return;
    }

    var placeholder = this._currentDrag.placeholder;
    var finalPosition = ionic.DomUtil.getChildIndex(placeholder, placeholder.nodeName.toLowerCase());

    // Reposition the element
    this.el.classList.remove(ITEM_REORDERING_CLASS);
    this.el.style[ionic.CSS.TRANSFORM] = '';

    placeholder.parentNode.insertBefore(this.el, placeholder);
    placeholder.parentNode.removeChild(placeholder);

    this.onReorder && this.onReorder(this.el, this._currentDrag.startIndex, finalPosition);

    this._currentDrag = null;
    doneCallback && doneCallback();
  };



  /**
   * The ListView handles a list of items. It will process drag animations, edit mode,
   * and other operations that are common on mobile lists or table views.
   */
  ionic.views.ListView = ionic.views.View.inherit({
    initialize: function(opts) {
      var _this = this;

      opts = ionic.extend({
        onReorder: function(el, oldIndex, newIndex) {},
        virtualRemoveThreshold: -200,
        virtualAddThreshold: 200,
        canSwipe: function() {
          return true;
        }
      }, opts);

      ionic.extend(this, opts);

      if(!this.itemHeight && this.listEl) {
        this.itemHeight = this.listEl.children[0] && parseInt(this.listEl.children[0].style.height, 10);
      }

      //ionic.views.ListView.__super__.initialize.call(this, opts);

      this.onRefresh = opts.onRefresh || function() {};
      this.onRefreshOpening = opts.onRefreshOpening || function() {};
      this.onRefreshHolding = opts.onRefreshHolding || function() {};

      window.ionic.onGesture('release', function(e) {
        _this._handleEndDrag(e);
      }, this.el);

      window.ionic.onGesture('drag', function(e) {
        _this._handleDrag(e);
      }, this.el);
      // Start the drag states
      this._initDrag();
    },
    /**
     * Called to tell the list to stop refreshing. This is useful
     * if you are refreshing the list and are done with refreshing.
     */
    stopRefreshing: function() {
      var refresher = this.el.querySelector('.list-refresher');
      refresher.style.height = '0px';
    },

    /**
     * If we scrolled and have virtual mode enabled, compute the window
     * of active elements in order to figure out the viewport to render.
     */
    didScroll: function(e) {
      if(this.isVirtual) {
        var itemHeight = this.itemHeight;

        // TODO: This would be inaccurate if we are windowed
        var totalItems = this.listEl.children.length;

        // Grab the total height of the list
        var scrollHeight = e.target.scrollHeight;

        // Get the viewport height
        var viewportHeight = this.el.parentNode.offsetHeight;

        // scrollTop is the current scroll position
        var scrollTop = e.scrollTop;

        // High water is the pixel position of the first element to include (everything before
        // that will be removed)
        var highWater = Math.max(0, e.scrollTop + this.virtualRemoveThreshold);

        // Low water is the pixel position of the last element to include (everything after
        // that will be removed)
        var lowWater = Math.min(scrollHeight, Math.abs(e.scrollTop) + viewportHeight + this.virtualAddThreshold);

        // Compute how many items per viewport size can show
        var itemsPerViewport = Math.floor((lowWater - highWater) / itemHeight);

        // Get the first and last elements in the list based on how many can fit
        // between the pixel range of lowWater and highWater
        var first = parseInt(Math.abs(highWater / itemHeight), 10);
        var last = parseInt(Math.abs(lowWater / itemHeight), 10);

        // Get the items we need to remove
        this._virtualItemsToRemove = Array.prototype.slice.call(this.listEl.children, 0, first);

        // Grab the nodes we will be showing
        var nodes = Array.prototype.slice.call(this.listEl.children, first, first + itemsPerViewport);

        this.renderViewport && this.renderViewport(highWater, lowWater, first, last);
      }
    },

    didStopScrolling: function(e) {
      if(this.isVirtual) {
        for(var i = 0; i < this._virtualItemsToRemove.length; i++) {
          var el = this._virtualItemsToRemove[i];
          //el.parentNode.removeChild(el);
          this.didHideItem && this.didHideItem(i);
        }
        // Once scrolling stops, check if we need to remove old items

      }
    },

    /**
     * Clear any active drag effects on the list.
     */
    clearDragEffects: function() {
      if(this._lastDragOp) {
        this._lastDragOp.clean && this._lastDragOp.clean();
        this._lastDragOp = null;
      }
    },

    _initDrag: function() {
      //ionic.views.ListView.__super__._initDrag.call(this);

      // Store the last one
      this._lastDragOp = this._dragOp;

      this._dragOp = null;
    },

    // Return the list item from the given target
    _getItem: function(target) {
      while(target) {
        if(target.classList && target.classList.contains(ITEM_CLASS)) {
          return target;
        }
        target = target.parentNode;
      }
      return null;
    },


    _startDrag: function(e) {
      var _this = this;

      var didStart = false;

      this._isDragging = false;

      var lastDragOp = this._lastDragOp;

      // Check if this is a reorder drag
      if(ionic.DomUtil.getParentOrSelfWithClass(e.target, ITEM_REORDER_BTN_CLASS) && (e.gesture.direction == 'up' || e.gesture.direction == 'down')) {
        var item = this._getItem(e.target);

        if(item) {
          this._dragOp = new ReorderDrag({
            listEl: this.el,
            el: item,
            scrollEl: this.scrollEl,
            scrollView: this.scrollView,
            onReorder: function(el, start, end) {
              _this.onReorder && _this.onReorder(el, start, end);
            }
          });
          this._dragOp.start(e);
          e.preventDefault();
        }
      }

      // Or check if this is a swipe to the side drag
      else if(!this._didDragUpOrDown && (e.gesture.direction == 'left' || e.gesture.direction == 'right') && Math.abs(e.gesture.deltaX) > 5) {

        // Make sure this is an item with buttons
        var item = this._getItem(e.target);
        if(item && item.querySelector('.item-options')) {
          this._dragOp = new SlideDrag({ el: this.el, canSwipe: this.canSwipe });
          this._dragOp.start(e);
          e.preventDefault();
        }
      }

      // If we had a last drag operation and this is a new one on a different item, clean that last one
      if(lastDragOp && this._dragOp && !this._dragOp.isSameItem(lastDragOp) && e.defaultPrevented) {
        lastDragOp.clean && lastDragOp.clean();
      }
    },


    _handleEndDrag: function(e) {
      var _this = this;

      this._didDragUpOrDown = false;

      if(!this._dragOp) {
        //ionic.views.ListView.__super__._handleEndDrag.call(this, e);
        return;
      }

      this._dragOp.end(e, function() {
        _this._initDrag();
      });
    },

    /**
     * Process the drag event to move the item to the left or right.
     */
    _handleDrag: function(e) {
      var _this = this, content, buttons;

      if(Math.abs(e.gesture.deltaY) > 5) {
        this._didDragUpOrDown = true;
      }

      // If we get a drag event, make sure we aren't in another drag, then check if we should
      // start one
      if(!this.isDragging && !this._dragOp) {
        this._startDrag(e);
      }

      // No drag still, pass it up
      if(!this._dragOp) {
        //ionic.views.ListView.__super__._handleDrag.call(this, e);
        return;
      }

      e.gesture.srcEvent.preventDefault();
      this._dragOp.drag(e);
    }

  });

})(ionic);

(function(ionic) {
'use strict';

  ionic.views.Modal = ionic.views.View.inherit({
    initialize: function(opts) {
      opts = ionic.extend({
        focusFirstInput: false,
        unfocusOnHide: true,
        focusFirstDelay: 600
      }, opts);

      ionic.extend(this, opts);

      this.el = opts.el;
    },
    show: function() {
      var self = this;

      if(self.focusFirstInput) {
        // Let any animations run first
        window.setTimeout(function() {
          var input = self.el.querySelector('input, textarea');
          input && input.focus && input.focus();
        }, self.focusFirstDelay);
      }
    },
    hide: function() {
      // Unfocus all elements
      if(this.unfocusOnHide) {
        var inputs = this.el.querySelectorAll('input, textarea');
        // Let any animations run first
        window.setTimeout(function() {
          for(var i = 0; i < inputs.length; i++) {
            inputs[i].blur && inputs[i].blur();
          }
        });
      }
    }
  });

})(ionic);

(function(ionic) {
'use strict';

  /**
   * The side menu view handles one of the side menu's in a Side Menu Controller
   * configuration.
   * It takes a DOM reference to that side menu element.
   */
  ionic.views.SideMenu = ionic.views.View.inherit({
    initialize: function(opts) {
      this.el = opts.el;
      this.isEnabled = (typeof opts.isEnabled === 'undefined') ? true : opts.isEnabled;
      this.setWidth(opts.width);
    },

    getFullWidth: function() {
      return this.width;
    },
    setWidth: function(width) {
      this.width = width;
      this.el.style.width = width + 'px';
    },
    setIsEnabled: function(isEnabled) {
      this.isEnabled = isEnabled;
    },
    bringUp: function() {
      if(this.el.style.zIndex !== '0') {
        this.el.style.zIndex = '0';
      }
    },
    pushDown: function() {
      if(this.el.style.zIndex !== '-1') {
        this.el.style.zIndex = '-1';
      }
    }
  });

  ionic.views.SideMenuContent = ionic.views.View.inherit({
    initialize: function(opts) {
      var _this = this;

      ionic.extend(this, {
        animationClass: 'menu-animated',
        onDrag: function(e) {},
        onEndDrag: function(e) {},
      }, opts);

      ionic.onGesture('drag', ionic.proxy(this._onDrag, this), this.el);
      ionic.onGesture('release', ionic.proxy(this._onEndDrag, this), this.el);
    },
    _onDrag: function(e) {
      this.onDrag && this.onDrag(e);
    },
    _onEndDrag: function(e) {
      this.onEndDrag && this.onEndDrag(e);
    },
    disableAnimation: function() {
      this.el.classList.remove(this.animationClass);
    },
    enableAnimation: function() {
      this.el.classList.add(this.animationClass);
    },
    getTranslateX: function() {
      return parseFloat(this.el.style[ionic.CSS.TRANSFORM].replace('translate3d(', '').split(',')[0]);
    },
    setTranslateX: ionic.animationFrameThrottle(function(x) {
      this.el.style[ionic.CSS.TRANSFORM] = 'translate3d(' + x + 'px, 0, 0)';
    })
  });

})(ionic);

/*
 * Adapted from Swipe.js 2.0
 *
 * Brad Birdsall
 * Copyright 2013, MIT License
 *
*/

(function(ionic) {
'use strict';

ionic.views.Slider = ionic.views.View.inherit({
  initialize: function (options) {
    var slider = this;

    // utilities
    var noop = function() {}; // simple no operation function
    var offloadFn = function(fn) { setTimeout(fn || noop, 0); }; // offload a functions execution

    // check browser capabilities
    var browser = {
      addEventListener: !!window.addEventListener,
      touch: ('ontouchstart' in window) || window.DocumentTouch && document instanceof DocumentTouch,
      transitions: (function(temp) {
        var props = ['transitionProperty', 'WebkitTransition', 'MozTransition', 'OTransition', 'msTransition'];
        for ( var i in props ) if (temp.style[ props[i] ] !== undefined) return true;
        return false;
      })(document.createElement('swipe'))
    };


    var container = options.el;

    // quit if no root element
    if (!container) return;
    var element = container.children[0];
    var slides, slidePos, width, length;
    options = options || {};
    var index = parseInt(options.startSlide, 10) || 0;
    var speed = options.speed || 300;
    options.continuous = options.continuous !== undefined ? options.continuous : true;

    function setup() {

      // cache slides
      slides = element.children;
      length = slides.length;

      // set continuous to false if only one slide
      if (slides.length < 2) options.continuous = false;

      //special case if two slides
      if (browser.transitions && options.continuous && slides.length < 3) {
        element.appendChild(slides[0].cloneNode(true));
        element.appendChild(element.children[1].cloneNode(true));
        slides = element.children;
      }

      // create an array to store current positions of each slide
      slidePos = new Array(slides.length);

      // determine width of each slide
      width = container.getBoundingClientRect().width || container.offsetWidth;

      element.style.width = (slides.length * width) + 'px';

      // stack elements
      var pos = slides.length;
      while(pos--) {

        var slide = slides[pos];

        slide.style.width = width + 'px';
        slide.setAttribute('data-index', pos);

        if (browser.transitions) {
          slide.style.left = (pos * -width) + 'px';
          move(pos, index > pos ? -width : (index < pos ? width : 0), 0);
        }

      }

      // reposition elements before and after index
      if (options.continuous && browser.transitions) {
        move(circle(index-1), -width, 0);
        move(circle(index+1), width, 0);
      }

      if (!browser.transitions) element.style.left = (index * -width) + 'px';

      container.style.visibility = 'visible';

      options.slidesChanged && options.slidesChanged();
    }

    function prev() {

      if (options.continuous) slide(index-1);
      else if (index) slide(index-1);

    }

    function next() {

      if (options.continuous) slide(index+1);
      else if (index < slides.length - 1) slide(index+1);

    }

    function circle(index) {

      // a simple positive modulo using slides.length
      return (slides.length + (index % slides.length)) % slides.length;

    }

    function slide(to, slideSpeed) {

      // do nothing if already on requested slide
      if (index == to) return;

      if (browser.transitions) {

        var direction = Math.abs(index-to) / (index-to); // 1: backward, -1: forward

        // get the actual position of the slide
        if (options.continuous) {
          var natural_direction = direction;
          direction = -slidePos[circle(to)] / width;

          // if going forward but to < index, use to = slides.length + to
          // if going backward but to > index, use to = -slides.length + to
          if (direction !== natural_direction) to =  -direction * slides.length + to;

        }

        var diff = Math.abs(index-to) - 1;

        // move all the slides between index and to in the right direction
        while (diff--) move( circle((to > index ? to : index) - diff - 1), width * direction, 0);

        to = circle(to);

        move(index, width * direction, slideSpeed || speed);
        move(to, 0, slideSpeed || speed);

        if (options.continuous) move(circle(to - direction), -(width * direction), 0); // we need to get the next in place

      } else {

        to = circle(to);
        animate(index * -width, to * -width, slideSpeed || speed);
        //no fallback for a circular continuous if the browser does not accept transitions
      }

      index = to;
      offloadFn(options.callback && options.callback(index, slides[index]));
    }

    function move(index, dist, speed) {

      translate(index, dist, speed);
      slidePos[index] = dist;

    }

    function translate(index, dist, speed) {

      var slide = slides[index];
      var style = slide && slide.style;

      if (!style) return;

      style.webkitTransitionDuration =
      style.MozTransitionDuration =
      style.msTransitionDuration =
      style.OTransitionDuration =
      style.transitionDuration = speed + 'ms';

      style.webkitTransform = 'translate(' + dist + 'px,0)' + 'translateZ(0)';
      style.msTransform =
      style.MozTransform =
      style.OTransform = 'translateX(' + dist + 'px)';

    }

    function animate(from, to, speed) {

      // if not an animation, just reposition
      if (!speed) {

        element.style.left = to + 'px';
        return;

      }

      var start = +new Date;

      var timer = setInterval(function() {

        var timeElap = +new Date - start;

        if (timeElap > speed) {

          element.style.left = to + 'px';

          if (delay) begin();

          options.transitionEnd && options.transitionEnd.call(event, index, slides[index]);

          clearInterval(timer);
          return;

        }

        element.style.left = (( (to - from) * (Math.floor((timeElap / speed) * 100) / 100) ) + from) + 'px';

      }, 4);

    }

    // setup auto slideshow
    var delay = options.auto || 0;
    var interval;

    function begin() {

      interval = setTimeout(next, delay);

    }

    function stop() {

      delay = options.auto || 0;
      clearTimeout(interval);

    }


    // setup initial vars
    var start = {};
    var delta = {};
    var isScrolling;

    // setup event capturing
    var events = {

      handleEvent: function(event) {
        if(event.type == 'mousedown' || event.type == 'mouseup' || event.type == 'mousemove') {
          event.touches = [{
            pageX: event.pageX,
            pageY: event.pageY
          }];
        }

        switch (event.type) {
          case 'mousedown': this.start(event); break;
          case 'touchstart': this.start(event); break;
          case 'touchmove': this.touchmove(event); break;
          case 'mousemove': this.touchmove(event); break;
          case 'touchend': offloadFn(this.end(event)); break;
          case 'mouseup': offloadFn(this.end(event)); break;
          case 'webkitTransitionEnd':
          case 'msTransitionEnd':
          case 'oTransitionEnd':
          case 'otransitionend':
          case 'transitionend': offloadFn(this.transitionEnd(event)); break;
          case 'resize': offloadFn(setup); break;
        }

        if (options.stopPropagation) event.stopPropagation();

      },
      start: function(event) {

        var touches = event.touches[0];

        // measure start values
        start = {

          // get initial touch coords
          x: touches.pageX,
          y: touches.pageY,

          // store time to determine touch duration
          time: +new Date

        };

        // used for testing first move event
        isScrolling = undefined;

        // reset delta and end measurements
        delta = {};

        // attach touchmove and touchend listeners
        if(browser.touch) {
          element.addEventListener('touchmove', this, false);
          element.addEventListener('touchend', this, false);
        } else {
          element.addEventListener('mousemove', this, false);
          element.addEventListener('mouseup', this, false);
          document.addEventListener('mouseup', this, false);
        }
      },
      touchmove: function(event) {

        // ensure swiping with one touch and not pinching
        // ensure sliding is enabled
        if (event.touches.length > 1 ||
            event.scale && event.scale !== 1 ||
            slider.slideIsDisabled) {
          return;
        }

        if (options.disableScroll) event.preventDefault();

        var touches = event.touches[0];

        // measure change in x and y
        delta = {
          x: touches.pageX - start.x,
          y: touches.pageY - start.y
        };

        // determine if scrolling test has run - one time test
        if ( typeof isScrolling == 'undefined') {
          isScrolling = !!( isScrolling || Math.abs(delta.x) < Math.abs(delta.y) );
        }

        // if user is not trying to scroll vertically
        if (!isScrolling) {

          // prevent native scrolling
          event.preventDefault();

          // stop slideshow
          stop();

          // increase resistance if first or last slide
          if (options.continuous) { // we don't add resistance at the end

            translate(circle(index-1), delta.x + slidePos[circle(index-1)], 0);
            translate(index, delta.x + slidePos[index], 0);
            translate(circle(index+1), delta.x + slidePos[circle(index+1)], 0);

          } else {

            delta.x =
              delta.x /
                ( (!index && delta.x > 0               // if first slide and sliding left
                  || index == slides.length - 1        // or if last slide and sliding right
                  && delta.x < 0                       // and if sliding at all
                ) ?
                ( Math.abs(delta.x) / width + 1 )      // determine resistance level
                : 1 );                                 // no resistance if false

            // translate 1:1
            translate(index-1, delta.x + slidePos[index-1], 0);
            translate(index, delta.x + slidePos[index], 0);
            translate(index+1, delta.x + slidePos[index+1], 0);
          }

        }

      },
      end: function(event) {

        // measure duration
        var duration = +new Date - start.time;

        // determine if slide attempt triggers next/prev slide
        var isValidSlide =
              Number(duration) < 250               // if slide duration is less than 250ms
              && Math.abs(delta.x) > 20            // and if slide amt is greater than 20px
              || Math.abs(delta.x) > width/2;      // or if slide amt is greater than half the width

        // determine if slide attempt is past start and end
        var isPastBounds =
              !index && delta.x > 0                            // if first slide and slide amt is greater than 0
              || index == slides.length - 1 && delta.x < 0;    // or if last slide and slide amt is less than 0

        if (options.continuous) isPastBounds = false;

        // determine direction of swipe (true:right, false:left)
        var direction = delta.x < 0;

        // if not scrolling vertically
        if (!isScrolling) {

          if (isValidSlide && !isPastBounds) {

            if (direction) {

              if (options.continuous) { // we need to get the next in this direction in place

                move(circle(index-1), -width, 0);
                move(circle(index+2), width, 0);

              } else {
                move(index-1, -width, 0);
              }

              move(index, slidePos[index]-width, speed);
              move(circle(index+1), slidePos[circle(index+1)]-width, speed);
              index = circle(index+1);

            } else {
              if (options.continuous) { // we need to get the next in this direction in place

                move(circle(index+1), width, 0);
                move(circle(index-2), -width, 0);

              } else {
                move(index+1, width, 0);
              }

              move(index, slidePos[index]+width, speed);
              move(circle(index-1), slidePos[circle(index-1)]+width, speed);
              index = circle(index-1);

            }

            options.callback && options.callback(index, slides[index]);

          } else {

            if (options.continuous) {

              move(circle(index-1), -width, speed);
              move(index, 0, speed);
              move(circle(index+1), width, speed);

            } else {

              move(index-1, -width, speed);
              move(index, 0, speed);
              move(index+1, width, speed);
            }

          }

        }

        // kill touchmove and touchend event listeners until touchstart called again
        if(browser.touch) {
          element.removeEventListener('touchmove', events, false);
          element.removeEventListener('touchend', events, false);
        } else {
          element.removeEventListener('mousemove', events, false);
          element.removeEventListener('mouseup', events, false);
          document.removeEventListener('mouseup', events, false);
        }

      },
      transitionEnd: function(event) {

        if (parseInt(event.target.getAttribute('data-index'), 10) == index) {

          if (delay) begin();

          options.transitionEnd && options.transitionEnd.call(event, index, slides[index]);

        }

      }

    };

    // Public API
    this.update = function() {
      setTimeout(setup);
    };
    this.setup = function() {
      setup();
    };

    this.enableSlide = function(shouldEnable) {
      if (arguments.length) {
        this.slideIsDisabled = !shouldEnable;
      }
      return !this.slideIsDisabled;
    },
    this.slide = function(to, speed) {
      // cancel slideshow
      stop();

      slide(to, speed);
    };

    this.prev = this.previous = function() {
      // cancel slideshow
      stop();

      prev();
    };

    this.next = function() {
      // cancel slideshow
      stop();

      next();
    };

    this.stop = function() {
      // cancel slideshow
      stop();
    };

    this.currentIndex = function() {
      // return current index position
      return index;
    };

    this.slidesCount = function() {
      // return total number of slides
      return length;
    };

    this.kill = function() {
      // cancel slideshow
      stop();

      // reset element
      element.style.width = '';
      element.style.left = '';

      // reset slides
      var pos = slides.length;
      while(pos--) {

        var slide = slides[pos];
        slide.style.width = '';
        slide.style.left = '';

        if (browser.transitions) translate(pos, 0, 0);

      }

      // removed event listeners
      if (browser.addEventListener) {

        // remove current event listeners
        element.removeEventListener('touchstart', events, false);
        element.removeEventListener('webkitTransitionEnd', events, false);
        element.removeEventListener('msTransitionEnd', events, false);
        element.removeEventListener('oTransitionEnd', events, false);
        element.removeEventListener('otransitionend', events, false);
        element.removeEventListener('transitionend', events, false);
        window.removeEventListener('resize', events, false);

      }
      else {

        window.onresize = null;

      }
    };

    this.load = function() {
      // trigger setup
      setup();

      // start auto slideshow if applicable
      if (delay) begin();


      // add event listeners
      if (browser.addEventListener) {

        // set touchstart event on element
        if (browser.touch) {
          element.addEventListener('touchstart', events, false);
        } else {
          element.addEventListener('mousedown', events, false);
        }

        if (browser.transitions) {
          element.addEventListener('webkitTransitionEnd', events, false);
          element.addEventListener('msTransitionEnd', events, false);
          element.addEventListener('oTransitionEnd', events, false);
          element.addEventListener('otransitionend', events, false);
          element.addEventListener('transitionend', events, false);
        }

        // set resize event on window
        window.addEventListener('resize', events, false);

      } else {

        window.onresize = function () { setup(); }; // to play nice with old IE

      }
    };

  }
});

})(ionic);

(function(ionic) {
'use strict';

  ionic.views.Toggle = ionic.views.View.inherit({
    initialize: function(opts) {
      var self = this;

      this.el = opts.el;
      this.checkbox = opts.checkbox;
      this.track = opts.track;
      this.handle = opts.handle;
      this.openPercent = -1;
      this.onChange = opts.onChange || function() {};

      this.triggerThreshold = opts.triggerThreshold || 20;

      this.dragStartHandler = function(e) {
        self.dragStart(e);
      };
      this.dragHandler = function(e) {
        self.drag(e);
      };
      this.holdHandler = function(e) {
        self.hold(e);
      };
      this.releaseHandler = function(e) {
        self.release(e);
      };

      this.dragStartGesture = ionic.onGesture('dragstart', this.dragStartHandler, this.el);
      this.dragGesture = ionic.onGesture('drag', this.dragHandler, this.el);
      this.dragHoldGesture = ionic.onGesture('hold', this.holdHandler, this.el);
      this.dragReleaseGesture = ionic.onGesture('release', this.releaseHandler, this.el);
    },

    destroy: function() {
      ionic.offGesture(this.dragStartGesture, 'dragstart', this.dragStartGesture);
      ionic.offGesture(this.dragGesture, 'drag', this.dragGesture);
      ionic.offGesture(this.dragHoldGesture, 'hold', this.holdHandler);
      ionic.offGesture(this.dragReleaseGesture, 'release', this.releaseHandler);
    },

    tap: function(e) {
      if(this.el.getAttribute('disabled') !== 'disabled') {
        this.val( !this.checkbox.checked );
      }
    },

    dragStart: function(e) {
      if(this.checkbox.disabled) return;

      this._dragInfo = {
        width: this.el.offsetWidth,
        left: this.el.offsetLeft,
        right: this.el.offsetLeft + this.el.offsetWidth,
        triggerX: this.el.offsetWidth / 2,
        initialState: this.checkbox.checked
      };

      // Stop any parent dragging
      e.gesture.srcEvent.preventDefault();

      // Trigger hold styles
      this.hold(e);
    },

    drag: function(e) {
      var self = this;
      if(!this._dragInfo) { return; }

      // Stop any parent dragging
      e.gesture.srcEvent.preventDefault();

      ionic.requestAnimationFrame(function(amount) {

        var slidePageLeft = self.track.offsetLeft + (self.handle.offsetWidth / 2);
        var slidePageRight = self.track.offsetLeft + self.track.offsetWidth - (self.handle.offsetWidth / 2);
        var dx = e.gesture.deltaX;

        var px = e.gesture.touches[0].pageX - self._dragInfo.left;
        var mx = self._dragInfo.width - self.triggerThreshold;

        // The initial state was on, so "tend towards" on
        if(self._dragInfo.initialState) {
          if(px < self.triggerThreshold) {
            self.setOpenPercent(0);
          } else if(px > self._dragInfo.triggerX) {
            self.setOpenPercent(100);
          }
        } else {
          // The initial state was off, so "tend towards" off
          if(px < self._dragInfo.triggerX) {
            self.setOpenPercent(0);
          } else if(px > mx) {
            self.setOpenPercent(100);
          }
        }
      });
    },

    endDrag: function(e) {
      this._dragInfo = null;
    },

    hold: function(e) {
      this.el.classList.add('dragging');
    },
    release: function(e) {
      this.el.classList.remove('dragging');
      this.endDrag(e);
    },


    setOpenPercent: function(openPercent) {
      // only make a change if the new open percent has changed
      if(this.openPercent < 0 || (openPercent < (this.openPercent - 3) || openPercent > (this.openPercent + 3) ) ) {
        this.openPercent = openPercent;

        if(openPercent === 0) {
          this.val(false);
        } else if(openPercent === 100) {
          this.val(true);
        } else {
          var openPixel = Math.round( (openPercent / 100) * this.track.offsetWidth - (this.handle.offsetWidth) );
          openPixel = (openPixel < 1 ? 0 : openPixel);
          this.handle.style[ionic.CSS.TRANSFORM] = 'translate3d(' + openPixel + 'px,0,0)';
        }
      }
    },

    val: function(value) {
      if(value === true || value === false) {
        if(this.handle.style[ionic.CSS.TRANSFORM] !== "") {
          this.handle.style[ionic.CSS.TRANSFORM] = "";
        }
        this.checkbox.checked = value;
        this.openPercent = (value ? 100 : 0);
        this.onChange && this.onChange();
      }
      return this.checkbox.checked;
    }

  });

})(ionic);

(function(ionic) {
'use strict';
  ionic.controllers.ViewController = function(options) {
    this.initialize.apply(this, arguments);
  };

  ionic.controllers.ViewController.inherit = ionic.inherit;

  ionic.extend(ionic.controllers.ViewController.prototype, {
    initialize: function() {},
    // Destroy this view controller, including all child views
    destroy: function() {
    }
  });

})(window.ionic);

(function(ionic) {
'use strict';

  /**
   * The SideMenuController is a controller with a left and/or right menu that
   * can be slid out and toggled. Seen on many an app.
   *
   * The right or left menu can be disabled or not used at all, if desired.
   */
  ionic.controllers.SideMenuController = ionic.controllers.ViewController.inherit({
    initialize: function(options) {
      var self = this;

      this.left = options.left;
      this.right = options.right;
      this.content = options.content;
      this.dragThresholdX = options.dragThresholdX || 10;

      this._rightShowing = false;
      this._leftShowing = false;
      this._isDragging = false;

      if(this.content) {
        this.content.onDrag = function(e) {
          self._handleDrag(e);
        };

        this.content.onEndDrag =function(e) {
          self._endDrag(e);
        };
      }
    },
    /**
     * Set the content view controller if not passed in the constructor options.
     *
     * @param {object} content
     */
    setContent: function(content) {
      var self = this;

      this.content = content;

      this.content.onDrag = function(e) {
        self._handleDrag(e);
      };

      this.content.endDrag = function(e) {
        self._endDrag(e);
      };
    },

    isOpenLeft: function() {
      return this.getOpenAmount() > 0;
    },

    isOpenRight: function() {
      return this.getOpenAmount() < 0;
    },

    /**
     * Toggle the left menu to open 100%
     */
    toggleLeft: function(shouldOpen) {
      var openAmount = this.getOpenAmount();
      if (arguments.length === 0) {
        shouldOpen = openAmount <= 0;
      }
      this.content.enableAnimation();
      if(!shouldOpen) {
        this.openPercentage(0);
      } else {
        this.openPercentage(100);
      }
    },

    /**
     * Toggle the right menu to open 100%
     */
    toggleRight: function(shouldOpen) {
      var openAmount = this.getOpenAmount();
      if (arguments.length === 0) {
        shouldOpen = openAmount >= 0;
      }
      this.content.enableAnimation();
      if(!shouldOpen) {
        this.openPercentage(0);
      } else {
        this.openPercentage(-100);
      }
    },

    /**
     * Close all menus.
     */
    close: function() {
      this.openPercentage(0);
    },

    /**
     * @return {float} The amount the side menu is open, either positive or negative for left (positive), or right (negative)
     */
    getOpenAmount: function() {
      return this.content && this.content.getTranslateX() || 0;
    },

    /**
     * @return {float} The ratio of open amount over menu width. For example, a
     * menu of width 100 open 50 pixels would be open 50% or a ratio of 0.5. Value is negative
     * for right menu.
     */
    getOpenRatio: function() {
      var amount = this.getOpenAmount();
      if(amount >= 0) {
        return amount / this.left.width;
      }
      return amount / this.right.width;
    },

    isOpen: function() {
      return this.getOpenAmount() !== 0;
    },

    /**
     * @return {float} The percentage of open amount over menu width. For example, a
     * menu of width 100 open 50 pixels would be open 50%. Value is negative
     * for right menu.
     */
    getOpenPercentage: function() {
      return this.getOpenRatio() * 100;
    },

    /**
     * Open the menu with a given percentage amount.
     * @param {float} percentage The percentage (positive or negative for left/right) to open the menu.
     */
    openPercentage: function(percentage) {
      var p = percentage / 100;

      if(this.left && percentage >= 0) {
        this.openAmount(this.left.width * p);
      } else if(this.right && percentage < 0) {
        var maxRight = this.right.width;
        this.openAmount(this.right.width * p);
      }
    },

    /**
     * Open the menu the given pixel amount.
     * @param {float} amount the pixel amount to open the menu. Positive value for left menu,
     * negative value for right menu (only one menu will be visible at a time).
     */
    openAmount: function(amount) {
      var maxLeft = this.left && this.left.width || 0;
      var maxRight = this.right && this.right.width || 0;

      // Check if we can move to that side, depending if the left/right panel is enabled
      if(!(this.left && this.left.isEnabled) && amount > 0) {
        this.content.setTranslateX(0);
        return;
      }

      if(!(this.right && this.right.isEnabled) && amount < 0) {
        this.content.setTranslateX(0);
        return;
      }

      if(this._leftShowing && amount > maxLeft) {
        this.content.setTranslateX(maxLeft);
        return;
      }

      if(this._rightShowing && amount < -maxRight) {
        this.content.setTranslateX(-maxRight);
        return;
      }

      this.content.setTranslateX(amount);

      if(amount >= 0) {
        this._leftShowing = true;
        this._rightShowing = false;

        if(amount > 0) {
          // Push the z-index of the right menu down
          this.right && this.right.pushDown && this.right.pushDown();
          // Bring the z-index of the left menu up
          this.left && this.left.bringUp && this.left.bringUp();
        }
      } else {
        this._rightShowing = true;
        this._leftShowing = false;

        // Bring the z-index of the right menu up
        this.right && this.right.bringUp && this.right.bringUp();
        // Push the z-index of the left menu down
        this.left && this.left.pushDown && this.left.pushDown();
      }
    },

    /**
     * Given an event object, find the final resting position of this side
     * menu. For example, if the user "throws" the content to the right and
     * releases the touch, the left menu should snap open (animated, of course).
     *
     * @param {Event} e the gesture event to use for snapping
     */
    snapToRest: function(e) {
      // We want to animate at the end of this
      this.content.enableAnimation();
      this._isDragging = false;

      // Check how much the panel is open after the drag, and
      // what the drag velocity is
      var ratio = this.getOpenRatio();

      if(ratio === 0) {
        // Just to be safe
        this.openPercentage(0);
        return;
      }

      var velocityThreshold = 0.3;
      var velocityX = e.gesture.velocityX;
      var direction = e.gesture.direction;

      // Less than half, going left
      //if(ratio > 0 && ratio < 0.5 && direction == 'left' && velocityX < velocityThreshold) {
      //this.openPercentage(0);
      //}

      // Going right, less than half, too slow (snap back)
      if(ratio > 0 && ratio < 0.5 && direction == 'right' && velocityX < velocityThreshold) {
        this.openPercentage(0);
      }

      // Going left, more than half, too slow (snap back)
      else if(ratio > 0.5 && direction == 'left' && velocityX < velocityThreshold) {
        this.openPercentage(100);
      }

      // Going left, less than half, too slow (snap back)
      else if(ratio < 0 && ratio > -0.5 && direction == 'left' && velocityX < velocityThreshold) {
        this.openPercentage(0);
      }

      // Going right, more than half, too slow (snap back)
      else if(ratio < 0.5 && direction == 'right' && velocityX < velocityThreshold) {
        this.openPercentage(-100);
      }

      // Going right, more than half, or quickly (snap open)
      else if(direction == 'right' && ratio >= 0 && (ratio >= 0.5 || velocityX > velocityThreshold)) {
        this.openPercentage(100);
      }

      // Going left, more than half, or quickly (span open)
      else if(direction == 'left' && ratio <= 0 && (ratio <= -0.5 || velocityX > velocityThreshold)) {
        this.openPercentage(-100);
      }

      // Snap back for safety
      else {
        this.openPercentage(0);
      }
    },

    // End a drag with the given event
    _endDrag: function(e) {
      if(this._isDragging) {
        this.snapToRest(e);
      }
      this._startX = null;
      this._lastX = null;
      this._offsetX = null;
    },

    // Handle a drag event
    _handleDrag: function(e) {
      // If we don't have start coords, grab and store them
      if(!this._startX) {
        this._startX = e.gesture.touches[0].pageX;
        this._lastX = this._startX;
      } else {
        // Grab the current tap coords
        this._lastX = e.gesture.touches[0].pageX;
      }

      // Calculate difference from the tap points
      if(!this._isDragging && Math.abs(this._lastX - this._startX) > this.dragThresholdX) {
        // if the difference is greater than threshold, start dragging using the current
        // point as the starting point
        this._startX = this._lastX;

        this._isDragging = true;
        // Initialize dragging
        this.content.disableAnimation();
        this._offsetX = this.getOpenAmount();
      }

      if(this._isDragging) {
        this.openAmount(this._offsetX + (this._lastX - this._startX));
      }
    }
  });

})(ionic);

(function(window) {
  var time = Date.now || function() {
    return +new Date();
  };
  var desiredFrames = 60;
  var millisecondsPerSecond = 1000;
  var running = {};
  var counter = 1;

  // Namespace
  ionic.Animation = {};

  /**
   * The main animation system manager. Treated as a singleton.
   */
  ionic.Animation = {
    create: function(opts) {
      return new ionic.Animation.Animation(opts);
    },

    animationStarted: function(instance) {
      var id = counter++;

      // Compacting running db automatically every few new animations
      if (id % 20 === 0) {
        var newRunning = {};
        for (var usedId in running) {
          newRunning[usedId] = true;
        }
        running = newRunning;
      }

      // Mark as running
      running[id] = true;

      instance.isRunning = true;
      instance._animationId = id;

      // Return unique animation ID
      return id;
    },

    animationStopped: function(instance) {
      instance.isRunning = false;
    }

    /* TODO: Move animation set management here instead of instance
    anims: [],
    add: function(animation) {
      this.anims.push(animation);
    },
    remove: function(animation) {
      var i, j;
      for(i = 0, j = this.anims.length; i < j; i++) {
        if(this.anims[i] === animation) {
          return this.anims.splice(i, 1);
        }
      }
    },
    clear: function(shouldStop) {
      while(this.anims.length) {
        var anim = this.anims.pop();
        if(shouldStop === true) {
          anim.stop();
        }
      }
    },
    */

    /**
     * Stops the given animation.
     *
     * @param id {Integer} Unique animation ID
     * @return {Boolean} Whether the animation was stopped (aka, was running before)
     * TODO: Requires above fix
    stop: function(id) {
      var cleared = running[id] != null;
      if (cleared) {
        running[id] = null;
      }

      return cleared;
    },
     */


    /**
     * Whether the given animation is still running.
     *
     * @param id {Integer} Unique animation ID
     * @return {Boolean} Whether the animation is still running
    isRunning: function(id) {
      return running[id] != null;
    },
     */

  };

  /**
   * Animation instance
   */
  ionic.Animation.Animation = function(opts) {
    ionic.extend(this, opts);

    if(opts.useSlowAnimations) {
      void 0;
      this.delay *= 3;
      this.duration *= 3;
    }
  };

  ionic.Animation.Animation.prototype = {
    el: null,
    curve: 'linear',
    duration: 500,
    delay: 0,
    repeat: -1,
    reverse: false,
    autoReverse: false,

    step: function(percent) {},

    stop: function() {
      this.isRunning = false;
      this.shouldEnd = true;
    },
    play: function() {
      this.isPaused = false;
      this.start();
    },
    pause: function() {
      this.isPaused = true;
    },
    _saveState: function(percent, iteration, reverse) {
      this._pauseState = {
        percent: percent,
        iteration: iteration,
        reverse: reverse
      };
    },
    restart: function() {
    },

    start: function() {
      var self = this;

      var tf;

      void 0;


      // Grab the timing function
      if(typeof this.curve === 'string') {
        tf = ionic.Animation.TimingFn[this.curve] || ionic.Animation.TimingFn['linear'];
      } else {
        tf = this.curve;
      }

      // Get back a timing function for the given duration (used for precision)
      tf = tf(this.duration);

      // Set up the initial animation state
      var animState = {
        startPercent: this.reverse === true ? 1 : 0,
        endPercent: this.reverse === true ? 0 : 1,
        duration: this.duration,
        easingMethod: tf,
        delay: this.delay,
        reverse: this.reverse,
        repeat: this.repeat,
        autoReverse: this.autoReverse
      };


      if(this._pauseState) {
        // We were paused, so update the fields
        ionic.extend(animState, this._pauseState);
        this._pauseState = null;
      }

      ionic.Animation.animationStarted(this);

      return this._run(function(percent, now, render) {
        if(render) {
          self.step(percent);
        }
      }, function(droppedFrames, finishedAnimation) {
        ionic.Animation.animationStopped(self);
        void 0;
      }, animState);
    },

    /**
     * Start the animation.
     *
     * @param stepCallback {Function} Pointer to function which is executed on every step.
    *   Signature of the method should be `function(percent, now, virtual) { return continueWithAnimation; }`
     * @param completedCallback {Function}
     *   Signature of the method should be `function(droppedFrames, finishedAnimation) {}`
     * @param duration {Integer} Milliseconds to run the animation
     * @param easingMethod {Function} Pointer to easing function
     *   Signature of the method should be `function(percent) { return modifiedValue; }`
     * @return {Integer} Identifier of animation. Can be used to stop it any time.
     */
    _run: function(stepCallback, completedCallback, state) {

      var self = this;
      var start = time();
      var lastFrame = start;
      var startTime = start + state.delay;
      var percent = state.startPercent;
      var startPercent = state.startPercent;
      var endPercent = state.endPercent;
      var autoReverse = state.autoReverse;
      var delay = state.delay;
      var duration = state.duration;
      var easingMethod = state.easingMethod;
      var repeat = state.repeat;
      var reverse = state.reverse;

      var dropCounter = 0;
      var iteration = 0;

      var perhapsAutoreverse = function() {
        // Check if we hit the end and should auto reverse
        if(percent === endPercent && autoReverse) {
          // Flip the start and end values
          var sp = endPercent;
          reverse = !reverse;
          endPercent = startPercent;
          startPercent = sp;

          if(repeat === 0) {
            autoReverse = false;
          }
        } else {
          // Otherwise, just start over
          percent = startPercent;
        }
        // Start fresh either way
        start = time();
        ionic.requestAnimationFrame(step);
      };


      // This is the internal step method which is called every few milliseconds
      var step = function(virtual) {

        // Normalize virtual value
        var render = virtual !== true;

        // Get current time
        var now = time();
        var diff = now - start;

        // Verification is executed before next animation step
        if(self.isPaused) {
          self._saveState(percent, iteration, reverse);
          return;
        }

        if (!self.isRunning) {// || (verifyCallback && !verifyCallback(id))) {

          completedCallback && completedCallback(desiredFrames - (dropCounter / ((now - start) / millisecondsPerSecond)), self._animationId, false);
          return;

        }


        // For the current rendering to apply let's update omitted steps in memory.
        // This is important to bring internal state variables up-to-date with progress in time.
        if (render) {

          var droppedFrames = Math.round((now - lastFrame) / (millisecondsPerSecond / desiredFrames)) - 1;
          for (var j = 0; j < Math.min(droppedFrames, 4); j++) {
            step(true);
            dropCounter++;
          }

        }

        // Compute percent value
        if (diff > delay && duration) {
          percent = (diff - delay) / duration;
          if(reverse === true) {
            percent = 1 - percent;
            if (percent < 0) {
              percent = 0;
            }
          } else {
            if (percent > 1) {
              percent = 1;
            }
          }
        }

        // Execute step callback, then...
        var value = easingMethod ? easingMethod(percent) : percent;
        if ((stepCallback(value, now, render) === false || percent === endPercent) && render) {
          if(repeat === -1) {
            perhapsAutoreverse();
          } else if(iteration < repeat) {
            // Track iterations
            iteration++;
            perhapsAutoreverse();
          } else if(repeat === 0 && autoReverse) {
            perhapsAutoreverse();
          } else {
            completedCallback && completedCallback(desiredFrames - (dropCounter / ((now - start) / millisecondsPerSecond)), self._animationId, percent === endPercent || duration == null);
          }
        } else if (render) {
          lastFrame = now;
          ionic.requestAnimationFrame(step);
        }
      };


      // Init first step
      ionic.requestAnimationFrame(step);

    }
  };


})(window);

/*
 * Copyright (C) 2008 Apple Inc. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE INC. OR
 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */
(function(ionic) {

  var bezierCoord = function (x,y) {
    if(!x) x=0;
    if(!y) y=0;
    return {x: x, y: y};
  };

  function B1(t) { return t*t*t; }
  function B2(t) { return 3*t*t*(1-t); }
  function B3(t) { return 3*t*(1-t)*(1-t); }
  function B4(t) { return (1-t)*(1-t)*(1-t); }

  ionic.Animation = ionic.Animation || {};

 
  /**
   * JavaScript port of Webkit implementation of CSS cubic-bezier(p1x.p1y,p2x,p2y) by http://mck.me
   * http://svn.webkit.org/repository/webkit/trunk/Source/WebCore/platform/graphics/UnitBezier.h
   */
  ionic.Animation.Bezier = (function(){
    'use strict';
   
    /**
     * Duration value to use when one is not specified (400ms is a common value).
     * @const
     * @type {number}
     */
    var DEFAULT_DURATION = 400;//ms
   
    /**
     * The epsilon value we pass to UnitBezier::solve given that the animation is going to run over |dur| seconds.
     * The longer the animation, the more precision we need in the timing function result to avoid ugly discontinuities.
     * http://svn.webkit.org/repository/webkit/trunk/Source/WebCore/page/animation/AnimationBase.cpp
     */
    var solveEpsilon = function(duration) {
      return 1.0 / (200.0 * duration);
    };
   
    /**
     * Defines a cubic-bezier curve given the middle two control points.
     * NOTE: first and last control points are implicitly (0,0) and (1,1).
     * @param p1x {number} X component of control point 1
     * @param p1y {number} Y component of control point 1
     * @param p2x {number} X component of control point 2
     * @param p2y {number} Y component of control point 2
     */
    var unitBezier = function(p1x, p1y, p2x, p2y) {
    
      // private members --------------------------------------------
   
      // Calculate the polynomial coefficients, implicit first and last control points are (0,0) and (1,1).
   
      /**
       * X component of Bezier coefficient C
       * @const
       * @type {number}
       */
      var cx = 3.0 * p1x;
   
      /**
       * X component of Bezier coefficient B
       * @const
       * @type {number}
       */
      var bx = 3.0 * (p2x - p1x) - cx;
   
      /**
       * X component of Bezier coefficient A
       * @const
       * @type {number}
       */
      var ax = 1.0 - cx -bx;
   
      /**
       * Y component of Bezier coefficient C
       * @const
       * @type {number}
       */
      var cy = 3.0 * p1y;
   
      /**
       * Y component of Bezier coefficient B
       * @const
       * @type {number}
       */
      var by = 3.0 * (p2y - p1y) - cy;
   
      /**
       * Y component of Bezier coefficient A
       * @const
       * @type {number}
       */
      var ay = 1.0 - cy - by;
   
      /**
       * @param t {number} parametric timing value
       * @return {number}
       */
      var sampleCurveX = function(t) {
        // `ax t^3 + bx t^2 + cx t' expanded using Horner's rule.
        return ((ax * t + bx) * t + cx) * t;
      };
   
      /**
       * @param t {number} parametric timing value
       * @return {number}
       */
      var sampleCurveY = function(t) {
        return ((ay * t + by) * t + cy) * t;
      };
   
      /**
       * @param t {number} parametric timing value
       * @return {number}
       */
      var sampleCurveDerivativeX = function(t) {
        return (3.0 * ax * t + 2.0 * bx) * t + cx;
      };
   
      /**
       * Given an x value, find a parametric value it came from.
       * @param x {number} value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param epsilon {number} accuracy limit of t for the given x
       * @return {number} the t value corresponding to x
       */
      var solveCurveX = function(x, epsilon) {
        var t0;
        var t1;
        var t2;
        var x2;
        var d2;
        var i;
   
        // First try a few iterations of Newton's method -- normally very fast.
        for (t2 = x, i = 0; i < 8; i++) {
          x2 = sampleCurveX(t2) - x;
          if (Math.abs (x2) < epsilon) {
            return t2;
          }
          d2 = sampleCurveDerivativeX(t2);
          if (Math.abs(d2) < 1e-6) {
            break;
          }
          t2 = t2 - x2 / d2;
        }
   
        // Fall back to the bisection method for reliability.
        t0 = 0.0;
        t1 = 1.0;
        t2 = x;
   
        if (t2 < t0) {
          return t0;
        }
        if (t2 > t1) {
          return t1;
        }
   
        while (t0 < t1) {
          x2 = sampleCurveX(t2);
          if (Math.abs(x2 - x) < epsilon) {
            return t2;
          }
          if (x > x2) {
            t0 = t2;
          } else {
            t1 = t2;
          }
          t2 = (t1 - t0) * 0.5 + t0;
        }
   
        // Failure.
        return t2;
      };
   
      /**
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param epsilon {number} the accuracy of t for the given x
       * @return {number} the y value along the bezier curve
       */
      var solve = function(x, epsilon) {
        return sampleCurveY(solveCurveX(x, epsilon));
      };
   
      // public interface --------------------------------------------
   
      /**
       * Find the y of the cubic-bezier for a given x with accuracy determined by the animation duration.
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      return function(x, duration) {
        return solve(x, solveEpsilon(+duration || DEFAULT_DURATION));
      };
    };
   
    // http://www.w3.org/TR/css3-transitions/#transition-timing-function
    return {
      /**
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      linear: unitBezier(0.0, 0.0, 1.0, 1.0),
   
      /**
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      ease: unitBezier(0.25, 0.1, 0.25, 1.0),
   
      /**
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      easeIn: unitBezier(0.42, 0, 1.0, 1.0),
   
      /**
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      easeOut: unitBezier(0, 0, 0.58, 1.0),
   
      /**
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      easeInOut: unitBezier(0.42, 0, 0.58, 1.0),
   
      /**
       * @param p1x {number} X component of control point 1
       * @param p1y {number} Y component of control point 1
       * @param p2x {number} X component of control point 2
       * @param p2y {number} Y component of control point 2
       * @param x {number} the value of x along the bezier curve, 0.0 <= x <= 1.0
       * @param duration {number} the duration of the animation in milliseconds
       * @return {number} the y value along the bezier curve
       */
      cubicBezier: function(p1x, p1y, p2x, p2y, x, duration) {
        return unitBezier(p1x, p1y, p2x, p2y)(x, duration);
      }
    };
  })();

/**
 * Various fast approximations and alternates to cubic-bezier easing functions.
 * http://www.w3.org/TR/css3-transitions/#transition-timing-function
 */
var Easing = (function(){
	'use strict';
 
	/**
	 * @const
	 */
	var EASE_IN_OUT_CONST = 0.5 * Math.pow(0.5, 1.925);
 
	return {
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		linear: function(x) {
			return x;
		},
 
//		/**
//		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
//		 * @return {number} the y value along the curve
//		 */
//		ease: function(x) {
//			// TODO: find fast approximations
//			return x;
//		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInApprox: function(x) {
			// very close approximation to cubic-bezier(0.42, 0, 1.0, 1.0)
			return Math.pow(x, 1.685);
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInQuadratic: function(x) {
			return (x * x);
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInCubic: function(x) {
			return (x * x * x);
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeOutApprox: function(x) {
			// very close approximation to cubic-bezier(0, 0, 0.58, 1.0)
			return 1 - Math.pow(1-x, 1.685);
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeOutQuadratic: function(x) {
			x -= 1;
			return 1 - (x * x);
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeOutCubic: function(x) {
			x -= 1;
			return 1 + (x * x * x);
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInOutApprox: function(x) {
			// very close approximation to cubic-bezier(0.42, 0, 0.58, 1.0)
			if (x < 0.5) {
				return EASE_IN_OUT_CONST * Math.pow(x, 1.925);
	
			} else {
				return 1 - EASE_IN_OUT_CONST * Math.pow(1-x, 1.925);
			}
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInOutQuadratic: function(x) {
			if (x < 0.5) {
				return (2 * x * x);
	
			} else {
				x -= 1;
				return 1 - (2 * x * x);
			}
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInOutCubic: function(x) {
			if (x < 0.5) {
				return (4 * x * x * x);
	
			} else {
				x -= 1;
				return 1 + (4 * x * x * x);
			}
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInOutQuartic: function(x) {
			if (x < 0.5) {
				return (8 * x * x * x * x);
	
			} else {
				x -= 1;
				return 1 + (8 * x * x * x * x);
			}
		},
 
		/**
		 * @param x {number} the value of x along the curve, 0.0 <= x <= 1.0
		 * @return {number} the y value along the curve
		 */
		easeInOutQuintic: function(x) {
			if (x < 0.5) {
				return (16 * x * x * x * x * x);
	
			} else {
				x -= 1;
				return 1 + (16 * x * x * x * x * x);
			}
		}
	};
})();
})(ionic);

/**
 * @fileoverview gl-matrix - High performance matrix and vector operations
 * @author Brandon Jones
 * @author Colin MacKenzie IV
 * @version 2.2.1
 */

/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */


(function(_global) {
  "use strict";

  var shim = {};
  if (typeof(exports) === 'undefined') {
    if(typeof define == 'function' && typeof define.amd == 'object' && define.amd) {
      shim.exports = {};
      define(function() {
        return shim.exports;
      });
    } else {
      // gl-matrix lives in a browser, define its namespaces in global
      shim.exports = typeof(window) !== 'undefined' ? window : _global;
    }
  }
  else {
    // gl-matrix lives in commonjs, define its namespaces in exports
    shim.exports = exports;
  }

  (function(exports) {
    /* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */


if(!GLMAT_EPSILON) {
    var GLMAT_EPSILON = 0.000001;
}

if(!GLMAT_ARRAY_TYPE) {
    var GLMAT_ARRAY_TYPE = (typeof Float32Array !== 'undefined') ? Float32Array : Array;
}

if(!GLMAT_RANDOM) {
    var GLMAT_RANDOM = Math.random;
}

/**
 * @class Common utilities
 * @name glMatrix
 */
var glMatrix = {};

/**
 * Sets the type of array used when creating new vectors and matricies
 *
 * @param {Type} type Array type, such as Float32Array or Array
 */
glMatrix.setMatrixArrayType = function(type) {
    GLMAT_ARRAY_TYPE = type;
};

if(typeof(exports) !== 'undefined') {
    exports.glMatrix = glMatrix;
}

var degree = Math.PI / 180;

/**
* Convert Degree To Radian
*
* @param {Number} Angle in Degrees
*/
glMatrix.toRadian = function(a){
     return a * degree;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 2 Dimensional Vector
 * @name vec2
 */

var vec2 = {};

/**
 * Creates a new, empty vec2
 *
 * @returns {vec2} a new 2D vector
 */
vec2.create = function() {
    var out = new GLMAT_ARRAY_TYPE(2);
    out[0] = 0;
    out[1] = 0;
    return out;
};

/**
 * Creates a new vec2 initialized with values from an existing vector
 *
 * @param {vec2} a vector to clone
 * @returns {vec2} a new 2D vector
 */
vec2.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(2);
    out[0] = a[0];
    out[1] = a[1];
    return out;
};

/**
 * Creates a new vec2 initialized with the given values
 *
 * @param {Number} x X component
 * @param {Number} y Y component
 * @returns {vec2} a new 2D vector
 */
vec2.fromValues = function(x, y) {
    var out = new GLMAT_ARRAY_TYPE(2);
    out[0] = x;
    out[1] = y;
    return out;
};

/**
 * Copy the values from one vec2 to another
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the source vector
 * @returns {vec2} out
 */
vec2.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    return out;
};

/**
 * Set the components of a vec2 to the given values
 *
 * @param {vec2} out the receiving vector
 * @param {Number} x X component
 * @param {Number} y Y component
 * @returns {vec2} out
 */
vec2.set = function(out, x, y) {
    out[0] = x;
    out[1] = y;
    return out;
};

/**
 * Adds two vec2's
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec2} out
 */
vec2.add = function(out, a, b) {
    out[0] = a[0] + b[0];
    out[1] = a[1] + b[1];
    return out;
};

/**
 * Subtracts vector b from vector a
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec2} out
 */
vec2.subtract = function(out, a, b) {
    out[0] = a[0] - b[0];
    out[1] = a[1] - b[1];
    return out;
};

/**
 * Alias for {@link vec2.subtract}
 * @function
 */
vec2.sub = vec2.subtract;

/**
 * Multiplies two vec2's
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec2} out
 */
vec2.multiply = function(out, a, b) {
    out[0] = a[0] * b[0];
    out[1] = a[1] * b[1];
    return out;
};

/**
 * Alias for {@link vec2.multiply}
 * @function
 */
vec2.mul = vec2.multiply;

/**
 * Divides two vec2's
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec2} out
 */
vec2.divide = function(out, a, b) {
    out[0] = a[0] / b[0];
    out[1] = a[1] / b[1];
    return out;
};

/**
 * Alias for {@link vec2.divide}
 * @function
 */
vec2.div = vec2.divide;

/**
 * Returns the minimum of two vec2's
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec2} out
 */
vec2.min = function(out, a, b) {
    out[0] = Math.min(a[0], b[0]);
    out[1] = Math.min(a[1], b[1]);
    return out;
};

/**
 * Returns the maximum of two vec2's
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec2} out
 */
vec2.max = function(out, a, b) {
    out[0] = Math.max(a[0], b[0]);
    out[1] = Math.max(a[1], b[1]);
    return out;
};

/**
 * Scales a vec2 by a scalar number
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the vector to scale
 * @param {Number} b amount to scale the vector by
 * @returns {vec2} out
 */
vec2.scale = function(out, a, b) {
    out[0] = a[0] * b;
    out[1] = a[1] * b;
    return out;
};

/**
 * Adds two vec2's after scaling the second operand by a scalar value
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @param {Number} scale the amount to scale b by before adding
 * @returns {vec2} out
 */
vec2.scaleAndAdd = function(out, a, b, scale) {
    out[0] = a[0] + (b[0] * scale);
    out[1] = a[1] + (b[1] * scale);
    return out;
};

/**
 * Calculates the euclidian distance between two vec2's
 *
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {Number} distance between a and b
 */
vec2.distance = function(a, b) {
    var x = b[0] - a[0],
        y = b[1] - a[1];
    return Math.sqrt(x*x + y*y);
};

/**
 * Alias for {@link vec2.distance}
 * @function
 */
vec2.dist = vec2.distance;

/**
 * Calculates the squared euclidian distance between two vec2's
 *
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {Number} squared distance between a and b
 */
vec2.squaredDistance = function(a, b) {
    var x = b[0] - a[0],
        y = b[1] - a[1];
    return x*x + y*y;
};

/**
 * Alias for {@link vec2.squaredDistance}
 * @function
 */
vec2.sqrDist = vec2.squaredDistance;

/**
 * Calculates the length of a vec2
 *
 * @param {vec2} a vector to calculate length of
 * @returns {Number} length of a
 */
vec2.length = function (a) {
    var x = a[0],
        y = a[1];
    return Math.sqrt(x*x + y*y);
};

/**
 * Alias for {@link vec2.length}
 * @function
 */
vec2.len = vec2.length;

/**
 * Calculates the squared length of a vec2
 *
 * @param {vec2} a vector to calculate squared length of
 * @returns {Number} squared length of a
 */
vec2.squaredLength = function (a) {
    var x = a[0],
        y = a[1];
    return x*x + y*y;
};

/**
 * Alias for {@link vec2.squaredLength}
 * @function
 */
vec2.sqrLen = vec2.squaredLength;

/**
 * Negates the components of a vec2
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a vector to negate
 * @returns {vec2} out
 */
vec2.negate = function(out, a) {
    out[0] = -a[0];
    out[1] = -a[1];
    return out;
};

/**
 * Normalize a vec2
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a vector to normalize
 * @returns {vec2} out
 */
vec2.normalize = function(out, a) {
    var x = a[0],
        y = a[1];
    var len = x*x + y*y;
    if (len > 0) {
        //TODO: evaluate use of glm_invsqrt here?
        len = 1 / Math.sqrt(len);
        out[0] = a[0] * len;
        out[1] = a[1] * len;
    }
    return out;
};

/**
 * Calculates the dot product of two vec2's
 *
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {Number} dot product of a and b
 */
vec2.dot = function (a, b) {
    return a[0] * b[0] + a[1] * b[1];
};

/**
 * Computes the cross product of two vec2's
 * Note that the cross product must by definition produce a 3D vector
 *
 * @param {vec3} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @returns {vec3} out
 */
vec2.cross = function(out, a, b) {
    var z = a[0] * b[1] - a[1] * b[0];
    out[0] = out[1] = 0;
    out[2] = z;
    return out;
};

/**
 * Performs a linear interpolation between two vec2's
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the first operand
 * @param {vec2} b the second operand
 * @param {Number} t interpolation amount between the two inputs
 * @returns {vec2} out
 */
vec2.lerp = function (out, a, b, t) {
    var ax = a[0],
        ay = a[1];
    out[0] = ax + t * (b[0] - ax);
    out[1] = ay + t * (b[1] - ay);
    return out;
};

/**
 * Generates a random vector with the given scale
 *
 * @param {vec2} out the receiving vector
 * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
 * @returns {vec2} out
 */
vec2.random = function (out, scale) {
    scale = scale || 1.0;
    var r = GLMAT_RANDOM() * 2.0 * Math.PI;
    out[0] = Math.cos(r) * scale;
    out[1] = Math.sin(r) * scale;
    return out;
};

/**
 * Transforms the vec2 with a mat2
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the vector to transform
 * @param {mat2} m matrix to transform with
 * @returns {vec2} out
 */
vec2.transformMat2 = function(out, a, m) {
    var x = a[0],
        y = a[1];
    out[0] = m[0] * x + m[2] * y;
    out[1] = m[1] * x + m[3] * y;
    return out;
};

/**
 * Transforms the vec2 with a mat2d
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the vector to transform
 * @param {mat2d} m matrix to transform with
 * @returns {vec2} out
 */
vec2.transformMat2d = function(out, a, m) {
    var x = a[0],
        y = a[1];
    out[0] = m[0] * x + m[2] * y + m[4];
    out[1] = m[1] * x + m[3] * y + m[5];
    return out;
};

/**
 * Transforms the vec2 with a mat3
 * 3rd vector component is implicitly '1'
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the vector to transform
 * @param {mat3} m matrix to transform with
 * @returns {vec2} out
 */
vec2.transformMat3 = function(out, a, m) {
    var x = a[0],
        y = a[1];
    out[0] = m[0] * x + m[3] * y + m[6];
    out[1] = m[1] * x + m[4] * y + m[7];
    return out;
};

/**
 * Transforms the vec2 with a mat4
 * 3rd vector component is implicitly '0'
 * 4th vector component is implicitly '1'
 *
 * @param {vec2} out the receiving vector
 * @param {vec2} a the vector to transform
 * @param {mat4} m matrix to transform with
 * @returns {vec2} out
 */
vec2.transformMat4 = function(out, a, m) {
    var x = a[0], 
        y = a[1];
    out[0] = m[0] * x + m[4] * y + m[12];
    out[1] = m[1] * x + m[5] * y + m[13];
    return out;
};

/**
 * Perform some operation over an array of vec2s.
 *
 * @param {Array} a the array of vectors to iterate over
 * @param {Number} stride Number of elements between the start of each vec2. If 0 assumes tightly packed
 * @param {Number} offset Number of elements to skip at the beginning of the array
 * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array
 * @param {Function} fn Function to call for each vector in the array
 * @param {Object} [arg] additional argument to pass to fn
 * @returns {Array} a
 * @function
 */
vec2.forEach = (function() {
    var vec = vec2.create();

    return function(a, stride, offset, count, fn, arg) {
        var i, l;
        if(!stride) {
            stride = 2;
        }

        if(!offset) {
            offset = 0;
        }
        
        if(count) {
            l = Math.min((count * stride) + offset, a.length);
        } else {
            l = a.length;
        }

        for(i = offset; i < l; i += stride) {
            vec[0] = a[i]; vec[1] = a[i+1];
            fn(vec, vec, arg);
            a[i] = vec[0]; a[i+1] = vec[1];
        }
        
        return a;
    };
})();

/**
 * Returns a string representation of a vector
 *
 * @param {vec2} vec vector to represent as a string
 * @returns {String} string representation of the vector
 */
vec2.str = function (a) {
    return 'vec2(' + a[0] + ', ' + a[1] + ')';
};

if(typeof(exports) !== 'undefined') {
    exports.vec2 = vec2;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 3 Dimensional Vector
 * @name vec3
 */

var vec3 = {};

/**
 * Creates a new, empty vec3
 *
 * @returns {vec3} a new 3D vector
 */
vec3.create = function() {
    var out = new GLMAT_ARRAY_TYPE(3);
    out[0] = 0;
    out[1] = 0;
    out[2] = 0;
    return out;
};

/**
 * Creates a new vec3 initialized with values from an existing vector
 *
 * @param {vec3} a vector to clone
 * @returns {vec3} a new 3D vector
 */
vec3.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(3);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    return out;
};

/**
 * Creates a new vec3 initialized with the given values
 *
 * @param {Number} x X component
 * @param {Number} y Y component
 * @param {Number} z Z component
 * @returns {vec3} a new 3D vector
 */
vec3.fromValues = function(x, y, z) {
    var out = new GLMAT_ARRAY_TYPE(3);
    out[0] = x;
    out[1] = y;
    out[2] = z;
    return out;
};

/**
 * Copy the values from one vec3 to another
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the source vector
 * @returns {vec3} out
 */
vec3.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    return out;
};

/**
 * Set the components of a vec3 to the given values
 *
 * @param {vec3} out the receiving vector
 * @param {Number} x X component
 * @param {Number} y Y component
 * @param {Number} z Z component
 * @returns {vec3} out
 */
vec3.set = function(out, x, y, z) {
    out[0] = x;
    out[1] = y;
    out[2] = z;
    return out;
};

/**
 * Adds two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.add = function(out, a, b) {
    out[0] = a[0] + b[0];
    out[1] = a[1] + b[1];
    out[2] = a[2] + b[2];
    return out;
};

/**
 * Subtracts vector b from vector a
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.subtract = function(out, a, b) {
    out[0] = a[0] - b[0];
    out[1] = a[1] - b[1];
    out[2] = a[2] - b[2];
    return out;
};

/**
 * Alias for {@link vec3.subtract}
 * @function
 */
vec3.sub = vec3.subtract;

/**
 * Multiplies two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.multiply = function(out, a, b) {
    out[0] = a[0] * b[0];
    out[1] = a[1] * b[1];
    out[2] = a[2] * b[2];
    return out;
};

/**
 * Alias for {@link vec3.multiply}
 * @function
 */
vec3.mul = vec3.multiply;

/**
 * Divides two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.divide = function(out, a, b) {
    out[0] = a[0] / b[0];
    out[1] = a[1] / b[1];
    out[2] = a[2] / b[2];
    return out;
};

/**
 * Alias for {@link vec3.divide}
 * @function
 */
vec3.div = vec3.divide;

/**
 * Returns the minimum of two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.min = function(out, a, b) {
    out[0] = Math.min(a[0], b[0]);
    out[1] = Math.min(a[1], b[1]);
    out[2] = Math.min(a[2], b[2]);
    return out;
};

/**
 * Returns the maximum of two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.max = function(out, a, b) {
    out[0] = Math.max(a[0], b[0]);
    out[1] = Math.max(a[1], b[1]);
    out[2] = Math.max(a[2], b[2]);
    return out;
};

/**
 * Scales a vec3 by a scalar number
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the vector to scale
 * @param {Number} b amount to scale the vector by
 * @returns {vec3} out
 */
vec3.scale = function(out, a, b) {
    out[0] = a[0] * b;
    out[1] = a[1] * b;
    out[2] = a[2] * b;
    return out;
};

/**
 * Adds two vec3's after scaling the second operand by a scalar value
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @param {Number} scale the amount to scale b by before adding
 * @returns {vec3} out
 */
vec3.scaleAndAdd = function(out, a, b, scale) {
    out[0] = a[0] + (b[0] * scale);
    out[1] = a[1] + (b[1] * scale);
    out[2] = a[2] + (b[2] * scale);
    return out;
};

/**
 * Calculates the euclidian distance between two vec3's
 *
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {Number} distance between a and b
 */
vec3.distance = function(a, b) {
    var x = b[0] - a[0],
        y = b[1] - a[1],
        z = b[2] - a[2];
    return Math.sqrt(x*x + y*y + z*z);
};

/**
 * Alias for {@link vec3.distance}
 * @function
 */
vec3.dist = vec3.distance;

/**
 * Calculates the squared euclidian distance between two vec3's
 *
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {Number} squared distance between a and b
 */
vec3.squaredDistance = function(a, b) {
    var x = b[0] - a[0],
        y = b[1] - a[1],
        z = b[2] - a[2];
    return x*x + y*y + z*z;
};

/**
 * Alias for {@link vec3.squaredDistance}
 * @function
 */
vec3.sqrDist = vec3.squaredDistance;

/**
 * Calculates the length of a vec3
 *
 * @param {vec3} a vector to calculate length of
 * @returns {Number} length of a
 */
vec3.length = function (a) {
    var x = a[0],
        y = a[1],
        z = a[2];
    return Math.sqrt(x*x + y*y + z*z);
};

/**
 * Alias for {@link vec3.length}
 * @function
 */
vec3.len = vec3.length;

/**
 * Calculates the squared length of a vec3
 *
 * @param {vec3} a vector to calculate squared length of
 * @returns {Number} squared length of a
 */
vec3.squaredLength = function (a) {
    var x = a[0],
        y = a[1],
        z = a[2];
    return x*x + y*y + z*z;
};

/**
 * Alias for {@link vec3.squaredLength}
 * @function
 */
vec3.sqrLen = vec3.squaredLength;

/**
 * Negates the components of a vec3
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a vector to negate
 * @returns {vec3} out
 */
vec3.negate = function(out, a) {
    out[0] = -a[0];
    out[1] = -a[1];
    out[2] = -a[2];
    return out;
};

/**
 * Normalize a vec3
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a vector to normalize
 * @returns {vec3} out
 */
vec3.normalize = function(out, a) {
    var x = a[0],
        y = a[1],
        z = a[2];
    var len = x*x + y*y + z*z;
    if (len > 0) {
        //TODO: evaluate use of glm_invsqrt here?
        len = 1 / Math.sqrt(len);
        out[0] = a[0] * len;
        out[1] = a[1] * len;
        out[2] = a[2] * len;
    }
    return out;
};

/**
 * Calculates the dot product of two vec3's
 *
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {Number} dot product of a and b
 */
vec3.dot = function (a, b) {
    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2];
};

/**
 * Computes the cross product of two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @returns {vec3} out
 */
vec3.cross = function(out, a, b) {
    var ax = a[0], ay = a[1], az = a[2],
        bx = b[0], by = b[1], bz = b[2];

    out[0] = ay * bz - az * by;
    out[1] = az * bx - ax * bz;
    out[2] = ax * by - ay * bx;
    return out;
};

/**
 * Performs a linear interpolation between two vec3's
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the first operand
 * @param {vec3} b the second operand
 * @param {Number} t interpolation amount between the two inputs
 * @returns {vec3} out
 */
vec3.lerp = function (out, a, b, t) {
    var ax = a[0],
        ay = a[1],
        az = a[2];
    out[0] = ax + t * (b[0] - ax);
    out[1] = ay + t * (b[1] - ay);
    out[2] = az + t * (b[2] - az);
    return out;
};

/**
 * Generates a random vector with the given scale
 *
 * @param {vec3} out the receiving vector
 * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
 * @returns {vec3} out
 */
vec3.random = function (out, scale) {
    scale = scale || 1.0;

    var r = GLMAT_RANDOM() * 2.0 * Math.PI;
    var z = (GLMAT_RANDOM() * 2.0) - 1.0;
    var zScale = Math.sqrt(1.0-z*z) * scale;

    out[0] = Math.cos(r) * zScale;
    out[1] = Math.sin(r) * zScale;
    out[2] = z * scale;
    return out;
};

/**
 * Transforms the vec3 with a mat4.
 * 4th vector component is implicitly '1'
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the vector to transform
 * @param {mat4} m matrix to transform with
 * @returns {vec3} out
 */
vec3.transformMat4 = function(out, a, m) {
    var x = a[0], y = a[1], z = a[2];
    out[0] = m[0] * x + m[4] * y + m[8] * z + m[12];
    out[1] = m[1] * x + m[5] * y + m[9] * z + m[13];
    out[2] = m[2] * x + m[6] * y + m[10] * z + m[14];
    return out;
};

/**
 * Transforms the vec3 with a mat3.
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the vector to transform
 * @param {mat4} m the 3x3 matrix to transform with
 * @returns {vec3} out
 */
vec3.transformMat3 = function(out, a, m) {
    var x = a[0], y = a[1], z = a[2];
    out[0] = x * m[0] + y * m[3] + z * m[6];
    out[1] = x * m[1] + y * m[4] + z * m[7];
    out[2] = x * m[2] + y * m[5] + z * m[8];
    return out;
};

/**
 * Transforms the vec3 with a quat
 *
 * @param {vec3} out the receiving vector
 * @param {vec3} a the vector to transform
 * @param {quat} q quaternion to transform with
 * @returns {vec3} out
 */
vec3.transformQuat = function(out, a, q) {
    // benchmarks: http://jsperf.com/quaternion-transform-vec3-implementations

    var x = a[0], y = a[1], z = a[2],
        qx = q[0], qy = q[1], qz = q[2], qw = q[3],

        // calculate quat * vec
        ix = qw * x + qy * z - qz * y,
        iy = qw * y + qz * x - qx * z,
        iz = qw * z + qx * y - qy * x,
        iw = -qx * x - qy * y - qz * z;

    // calculate result * inverse quat
    out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
    out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
    out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
    return out;
};

/*
* Rotate a 3D vector around the x-axis
* @param {vec3} out The receiving vec3
* @param {vec3} a The vec3 point to rotate
* @param {vec3} b The origin of the rotation
* @param {Number} c The angle of rotation
* @returns {vec3} out
*/
vec3.rotateX = function(out, a, b, c){
   var p = [], r=[];
	  //Translate point to the origin
	  p[0] = a[0] - b[0];
	  p[1] = a[1] - b[1];
  	p[2] = a[2] - b[2];

	  //perform rotation
	  r[0] = p[0];
	  r[1] = p[1]*Math.cos(c) - p[2]*Math.sin(c);
	  r[2] = p[1]*Math.sin(c) + p[2]*Math.cos(c);

	  //translate to correct position
	  out[0] = r[0] + b[0];
	  out[1] = r[1] + b[1];
	  out[2] = r[2] + b[2];

  	return out;
};

/*
* Rotate a 3D vector around the y-axis
* @param {vec3} out The receiving vec3
* @param {vec3} a The vec3 point to rotate
* @param {vec3} b The origin of the rotation
* @param {Number} c The angle of rotation
* @returns {vec3} out
*/
vec3.rotateY = function(out, a, b, c){
  	var p = [], r=[];
  	//Translate point to the origin
  	p[0] = a[0] - b[0];
  	p[1] = a[1] - b[1];
  	p[2] = a[2] - b[2];
  
  	//perform rotation
  	r[0] = p[2]*Math.sin(c) + p[0]*Math.cos(c);
  	r[1] = p[1];
  	r[2] = p[2]*Math.cos(c) - p[0]*Math.sin(c);
  
  	//translate to correct position
  	out[0] = r[0] + b[0];
  	out[1] = r[1] + b[1];
  	out[2] = r[2] + b[2];
  
  	return out;
};

/*
* Rotate a 3D vector around the z-axis
* @param {vec3} out The receiving vec3
* @param {vec3} a The vec3 point to rotate
* @param {vec3} b The origin of the rotation
* @param {Number} c The angle of rotation
* @returns {vec3} out
*/
vec3.rotateZ = function(out, a, b, c){
  	var p = [], r=[];
  	//Translate point to the origin
  	p[0] = a[0] - b[0];
  	p[1] = a[1] - b[1];
  	p[2] = a[2] - b[2];
  
  	//perform rotation
  	r[0] = p[0]*Math.cos(c) - p[1]*Math.sin(c);
  	r[1] = p[0]*Math.sin(c) + p[1]*Math.cos(c);
  	r[2] = p[2];
  
  	//translate to correct position
  	out[0] = r[0] + b[0];
  	out[1] = r[1] + b[1];
  	out[2] = r[2] + b[2];
  
  	return out;
};

/**
 * Perform some operation over an array of vec3s.
 *
 * @param {Array} a the array of vectors to iterate over
 * @param {Number} stride Number of elements between the start of each vec3. If 0 assumes tightly packed
 * @param {Number} offset Number of elements to skip at the beginning of the array
 * @param {Number} count Number of vec3s to iterate over. If 0 iterates over entire array
 * @param {Function} fn Function to call for each vector in the array
 * @param {Object} [arg] additional argument to pass to fn
 * @returns {Array} a
 * @function
 */
vec3.forEach = (function() {
    var vec = vec3.create();

    return function(a, stride, offset, count, fn, arg) {
        var i, l;
        if(!stride) {
            stride = 3;
        }

        if(!offset) {
            offset = 0;
        }
        
        if(count) {
            l = Math.min((count * stride) + offset, a.length);
        } else {
            l = a.length;
        }

        for(i = offset; i < l; i += stride) {
            vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2];
            fn(vec, vec, arg);
            a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2];
        }
        
        return a;
    };
})();

/**
 * Returns a string representation of a vector
 *
 * @param {vec3} vec vector to represent as a string
 * @returns {String} string representation of the vector
 */
vec3.str = function (a) {
    return 'vec3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ')';
};

if(typeof(exports) !== 'undefined') {
    exports.vec3 = vec3;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 4 Dimensional Vector
 * @name vec4
 */

var vec4 = {};

/**
 * Creates a new, empty vec4
 *
 * @returns {vec4} a new 4D vector
 */
vec4.create = function() {
    var out = new GLMAT_ARRAY_TYPE(4);
    out[0] = 0;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    return out;
};

/**
 * Creates a new vec4 initialized with values from an existing vector
 *
 * @param {vec4} a vector to clone
 * @returns {vec4} a new 4D vector
 */
vec4.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(4);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    return out;
};

/**
 * Creates a new vec4 initialized with the given values
 *
 * @param {Number} x X component
 * @param {Number} y Y component
 * @param {Number} z Z component
 * @param {Number} w W component
 * @returns {vec4} a new 4D vector
 */
vec4.fromValues = function(x, y, z, w) {
    var out = new GLMAT_ARRAY_TYPE(4);
    out[0] = x;
    out[1] = y;
    out[2] = z;
    out[3] = w;
    return out;
};

/**
 * Copy the values from one vec4 to another
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the source vector
 * @returns {vec4} out
 */
vec4.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    return out;
};

/**
 * Set the components of a vec4 to the given values
 *
 * @param {vec4} out the receiving vector
 * @param {Number} x X component
 * @param {Number} y Y component
 * @param {Number} z Z component
 * @param {Number} w W component
 * @returns {vec4} out
 */
vec4.set = function(out, x, y, z, w) {
    out[0] = x;
    out[1] = y;
    out[2] = z;
    out[3] = w;
    return out;
};

/**
 * Adds two vec4's
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {vec4} out
 */
vec4.add = function(out, a, b) {
    out[0] = a[0] + b[0];
    out[1] = a[1] + b[1];
    out[2] = a[2] + b[2];
    out[3] = a[3] + b[3];
    return out;
};

/**
 * Subtracts vector b from vector a
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {vec4} out
 */
vec4.subtract = function(out, a, b) {
    out[0] = a[0] - b[0];
    out[1] = a[1] - b[1];
    out[2] = a[2] - b[2];
    out[3] = a[3] - b[3];
    return out;
};

/**
 * Alias for {@link vec4.subtract}
 * @function
 */
vec4.sub = vec4.subtract;

/**
 * Multiplies two vec4's
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {vec4} out
 */
vec4.multiply = function(out, a, b) {
    out[0] = a[0] * b[0];
    out[1] = a[1] * b[1];
    out[2] = a[2] * b[2];
    out[3] = a[3] * b[3];
    return out;
};

/**
 * Alias for {@link vec4.multiply}
 * @function
 */
vec4.mul = vec4.multiply;

/**
 * Divides two vec4's
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {vec4} out
 */
vec4.divide = function(out, a, b) {
    out[0] = a[0] / b[0];
    out[1] = a[1] / b[1];
    out[2] = a[2] / b[2];
    out[3] = a[3] / b[3];
    return out;
};

/**
 * Alias for {@link vec4.divide}
 * @function
 */
vec4.div = vec4.divide;

/**
 * Returns the minimum of two vec4's
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {vec4} out
 */
vec4.min = function(out, a, b) {
    out[0] = Math.min(a[0], b[0]);
    out[1] = Math.min(a[1], b[1]);
    out[2] = Math.min(a[2], b[2]);
    out[3] = Math.min(a[3], b[3]);
    return out;
};

/**
 * Returns the maximum of two vec4's
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {vec4} out
 */
vec4.max = function(out, a, b) {
    out[0] = Math.max(a[0], b[0]);
    out[1] = Math.max(a[1], b[1]);
    out[2] = Math.max(a[2], b[2]);
    out[3] = Math.max(a[3], b[3]);
    return out;
};

/**
 * Scales a vec4 by a scalar number
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the vector to scale
 * @param {Number} b amount to scale the vector by
 * @returns {vec4} out
 */
vec4.scale = function(out, a, b) {
    out[0] = a[0] * b;
    out[1] = a[1] * b;
    out[2] = a[2] * b;
    out[3] = a[3] * b;
    return out;
};

/**
 * Adds two vec4's after scaling the second operand by a scalar value
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @param {Number} scale the amount to scale b by before adding
 * @returns {vec4} out
 */
vec4.scaleAndAdd = function(out, a, b, scale) {
    out[0] = a[0] + (b[0] * scale);
    out[1] = a[1] + (b[1] * scale);
    out[2] = a[2] + (b[2] * scale);
    out[3] = a[3] + (b[3] * scale);
    return out;
};

/**
 * Calculates the euclidian distance between two vec4's
 *
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {Number} distance between a and b
 */
vec4.distance = function(a, b) {
    var x = b[0] - a[0],
        y = b[1] - a[1],
        z = b[2] - a[2],
        w = b[3] - a[3];
    return Math.sqrt(x*x + y*y + z*z + w*w);
};

/**
 * Alias for {@link vec4.distance}
 * @function
 */
vec4.dist = vec4.distance;

/**
 * Calculates the squared euclidian distance between two vec4's
 *
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {Number} squared distance between a and b
 */
vec4.squaredDistance = function(a, b) {
    var x = b[0] - a[0],
        y = b[1] - a[1],
        z = b[2] - a[2],
        w = b[3] - a[3];
    return x*x + y*y + z*z + w*w;
};

/**
 * Alias for {@link vec4.squaredDistance}
 * @function
 */
vec4.sqrDist = vec4.squaredDistance;

/**
 * Calculates the length of a vec4
 *
 * @param {vec4} a vector to calculate length of
 * @returns {Number} length of a
 */
vec4.length = function (a) {
    var x = a[0],
        y = a[1],
        z = a[2],
        w = a[3];
    return Math.sqrt(x*x + y*y + z*z + w*w);
};

/**
 * Alias for {@link vec4.length}
 * @function
 */
vec4.len = vec4.length;

/**
 * Calculates the squared length of a vec4
 *
 * @param {vec4} a vector to calculate squared length of
 * @returns {Number} squared length of a
 */
vec4.squaredLength = function (a) {
    var x = a[0],
        y = a[1],
        z = a[2],
        w = a[3];
    return x*x + y*y + z*z + w*w;
};

/**
 * Alias for {@link vec4.squaredLength}
 * @function
 */
vec4.sqrLen = vec4.squaredLength;

/**
 * Negates the components of a vec4
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a vector to negate
 * @returns {vec4} out
 */
vec4.negate = function(out, a) {
    out[0] = -a[0];
    out[1] = -a[1];
    out[2] = -a[2];
    out[3] = -a[3];
    return out;
};

/**
 * Normalize a vec4
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a vector to normalize
 * @returns {vec4} out
 */
vec4.normalize = function(out, a) {
    var x = a[0],
        y = a[1],
        z = a[2],
        w = a[3];
    var len = x*x + y*y + z*z + w*w;
    if (len > 0) {
        len = 1 / Math.sqrt(len);
        out[0] = a[0] * len;
        out[1] = a[1] * len;
        out[2] = a[2] * len;
        out[3] = a[3] * len;
    }
    return out;
};

/**
 * Calculates the dot product of two vec4's
 *
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @returns {Number} dot product of a and b
 */
vec4.dot = function (a, b) {
    return a[0] * b[0] + a[1] * b[1] + a[2] * b[2] + a[3] * b[3];
};

/**
 * Performs a linear interpolation between two vec4's
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the first operand
 * @param {vec4} b the second operand
 * @param {Number} t interpolation amount between the two inputs
 * @returns {vec4} out
 */
vec4.lerp = function (out, a, b, t) {
    var ax = a[0],
        ay = a[1],
        az = a[2],
        aw = a[3];
    out[0] = ax + t * (b[0] - ax);
    out[1] = ay + t * (b[1] - ay);
    out[2] = az + t * (b[2] - az);
    out[3] = aw + t * (b[3] - aw);
    return out;
};

/**
 * Generates a random vector with the given scale
 *
 * @param {vec4} out the receiving vector
 * @param {Number} [scale] Length of the resulting vector. If ommitted, a unit vector will be returned
 * @returns {vec4} out
 */
vec4.random = function (out, scale) {
    scale = scale || 1.0;

    //TODO: This is a pretty awful way of doing this. Find something better.
    out[0] = GLMAT_RANDOM();
    out[1] = GLMAT_RANDOM();
    out[2] = GLMAT_RANDOM();
    out[3] = GLMAT_RANDOM();
    vec4.normalize(out, out);
    vec4.scale(out, out, scale);
    return out;
};

/**
 * Transforms the vec4 with a mat4.
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the vector to transform
 * @param {mat4} m matrix to transform with
 * @returns {vec4} out
 */
vec4.transformMat4 = function(out, a, m) {
    var x = a[0], y = a[1], z = a[2], w = a[3];
    out[0] = m[0] * x + m[4] * y + m[8] * z + m[12] * w;
    out[1] = m[1] * x + m[5] * y + m[9] * z + m[13] * w;
    out[2] = m[2] * x + m[6] * y + m[10] * z + m[14] * w;
    out[3] = m[3] * x + m[7] * y + m[11] * z + m[15] * w;
    return out;
};

/**
 * Transforms the vec4 with a quat
 *
 * @param {vec4} out the receiving vector
 * @param {vec4} a the vector to transform
 * @param {quat} q quaternion to transform with
 * @returns {vec4} out
 */
vec4.transformQuat = function(out, a, q) {
    var x = a[0], y = a[1], z = a[2],
        qx = q[0], qy = q[1], qz = q[2], qw = q[3],

        // calculate quat * vec
        ix = qw * x + qy * z - qz * y,
        iy = qw * y + qz * x - qx * z,
        iz = qw * z + qx * y - qy * x,
        iw = -qx * x - qy * y - qz * z;

    // calculate result * inverse quat
    out[0] = ix * qw + iw * -qx + iy * -qz - iz * -qy;
    out[1] = iy * qw + iw * -qy + iz * -qx - ix * -qz;
    out[2] = iz * qw + iw * -qz + ix * -qy - iy * -qx;
    return out;
};

/**
 * Perform some operation over an array of vec4s.
 *
 * @param {Array} a the array of vectors to iterate over
 * @param {Number} stride Number of elements between the start of each vec4. If 0 assumes tightly packed
 * @param {Number} offset Number of elements to skip at the beginning of the array
 * @param {Number} count Number of vec2s to iterate over. If 0 iterates over entire array
 * @param {Function} fn Function to call for each vector in the array
 * @param {Object} [arg] additional argument to pass to fn
 * @returns {Array} a
 * @function
 */
vec4.forEach = (function() {
    var vec = vec4.create();

    return function(a, stride, offset, count, fn, arg) {
        var i, l;
        if(!stride) {
            stride = 4;
        }

        if(!offset) {
            offset = 0;
        }
        
        if(count) {
            l = Math.min((count * stride) + offset, a.length);
        } else {
            l = a.length;
        }

        for(i = offset; i < l; i += stride) {
            vec[0] = a[i]; vec[1] = a[i+1]; vec[2] = a[i+2]; vec[3] = a[i+3];
            fn(vec, vec, arg);
            a[i] = vec[0]; a[i+1] = vec[1]; a[i+2] = vec[2]; a[i+3] = vec[3];
        }
        
        return a;
    };
})();

/**
 * Returns a string representation of a vector
 *
 * @param {vec4} vec vector to represent as a string
 * @returns {String} string representation of the vector
 */
vec4.str = function (a) {
    return 'vec4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
};

if(typeof(exports) !== 'undefined') {
    exports.vec4 = vec4;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 2x2 Matrix
 * @name mat2
 */

var mat2 = {};

/**
 * Creates a new identity mat2
 *
 * @returns {mat2} a new 2x2 matrix
 */
mat2.create = function() {
    var out = new GLMAT_ARRAY_TYPE(4);
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 1;
    return out;
};

/**
 * Creates a new mat2 initialized with values from an existing matrix
 *
 * @param {mat2} a matrix to clone
 * @returns {mat2} a new 2x2 matrix
 */
mat2.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(4);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    return out;
};

/**
 * Copy the values from one mat2 to another
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the source matrix
 * @returns {mat2} out
 */
mat2.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    return out;
};

/**
 * Set a mat2 to the identity matrix
 *
 * @param {mat2} out the receiving matrix
 * @returns {mat2} out
 */
mat2.identity = function(out) {
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 1;
    return out;
};

/**
 * Transpose the values of a mat2
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the source matrix
 * @returns {mat2} out
 */
mat2.transpose = function(out, a) {
    // If we are transposing ourselves we can skip a few steps but have to cache some values
    if (out === a) {
        var a1 = a[1];
        out[1] = a[2];
        out[2] = a1;
    } else {
        out[0] = a[0];
        out[1] = a[2];
        out[2] = a[1];
        out[3] = a[3];
    }
    
    return out;
};

/**
 * Inverts a mat2
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the source matrix
 * @returns {mat2} out
 */
mat2.invert = function(out, a) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],

        // Calculate the determinant
        det = a0 * a3 - a2 * a1;

    if (!det) {
        return null;
    }
    det = 1.0 / det;
    
    out[0] =  a3 * det;
    out[1] = -a1 * det;
    out[2] = -a2 * det;
    out[3] =  a0 * det;

    return out;
};

/**
 * Calculates the adjugate of a mat2
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the source matrix
 * @returns {mat2} out
 */
mat2.adjoint = function(out, a) {
    // Caching this value is nessecary if out == a
    var a0 = a[0];
    out[0] =  a[3];
    out[1] = -a[1];
    out[2] = -a[2];
    out[3] =  a0;

    return out;
};

/**
 * Calculates the determinant of a mat2
 *
 * @param {mat2} a the source matrix
 * @returns {Number} determinant of a
 */
mat2.determinant = function (a) {
    return a[0] * a[3] - a[2] * a[1];
};

/**
 * Multiplies two mat2's
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the first operand
 * @param {mat2} b the second operand
 * @returns {mat2} out
 */
mat2.multiply = function (out, a, b) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3];
    var b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3];
    out[0] = a0 * b0 + a2 * b1;
    out[1] = a1 * b0 + a3 * b1;
    out[2] = a0 * b2 + a2 * b3;
    out[3] = a1 * b2 + a3 * b3;
    return out;
};

/**
 * Alias for {@link mat2.multiply}
 * @function
 */
mat2.mul = mat2.multiply;

/**
 * Rotates a mat2 by the given angle
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @returns {mat2} out
 */
mat2.rotate = function (out, a, rad) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],
        s = Math.sin(rad),
        c = Math.cos(rad);
    out[0] = a0 *  c + a2 * s;
    out[1] = a1 *  c + a3 * s;
    out[2] = a0 * -s + a2 * c;
    out[3] = a1 * -s + a3 * c;
    return out;
};

/**
 * Scales the mat2 by the dimensions in the given vec2
 *
 * @param {mat2} out the receiving matrix
 * @param {mat2} a the matrix to rotate
 * @param {vec2} v the vec2 to scale the matrix by
 * @returns {mat2} out
 **/
mat2.scale = function(out, a, v) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],
        v0 = v[0], v1 = v[1];
    out[0] = a0 * v0;
    out[1] = a1 * v0;
    out[2] = a2 * v1;
    out[3] = a3 * v1;
    return out;
};

/**
 * Returns a string representation of a mat2
 *
 * @param {mat2} mat matrix to represent as a string
 * @returns {String} string representation of the matrix
 */
mat2.str = function (a) {
    return 'mat2(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
};

/**
 * Returns Frobenius norm of a mat2
 *
 * @param {mat2} a the matrix to calculate Frobenius norm of
 * @returns {Number} Frobenius norm
 */
mat2.frob = function (a) {
    return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2)))
};

/**
 * Returns L, D and U matrices (Lower triangular, Diagonal and Upper triangular) by factorizing the input matrix
 * @param {mat2} L the lower triangular matrix 
 * @param {mat2} D the diagonal matrix 
 * @param {mat2} U the upper triangular matrix 
 * @param {mat2} a the input matrix to factorize
 */

mat2.LDU = function (L, D, U, a) { 
    L[2] = a[2]/a[0]; 
    U[0] = a[0]; 
    U[1] = a[1]; 
    U[3] = a[3] - L[2] * U[1]; 
    return [L, D, U];       
}; 

if(typeof(exports) !== 'undefined') {
    exports.mat2 = mat2;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 2x3 Matrix
 * @name mat2d
 * 
 * @description 
 * A mat2d contains six elements defined as:
 * <pre>
 * [a, c, tx,
 *  b, d, ty]
 * </pre>
 * This is a short form for the 3x3 matrix:
 * <pre>
 * [a, c, tx,
 *  b, d, ty,
 *  0, 0, 1]
 * </pre>
 * The last row is ignored so the array is shorter and operations are faster.
 */

var mat2d = {};

/**
 * Creates a new identity mat2d
 *
 * @returns {mat2d} a new 2x3 matrix
 */
mat2d.create = function() {
    var out = new GLMAT_ARRAY_TYPE(6);
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 1;
    out[4] = 0;
    out[5] = 0;
    return out;
};

/**
 * Creates a new mat2d initialized with values from an existing matrix
 *
 * @param {mat2d} a matrix to clone
 * @returns {mat2d} a new 2x3 matrix
 */
mat2d.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(6);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    return out;
};

/**
 * Copy the values from one mat2d to another
 *
 * @param {mat2d} out the receiving matrix
 * @param {mat2d} a the source matrix
 * @returns {mat2d} out
 */
mat2d.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    return out;
};

/**
 * Set a mat2d to the identity matrix
 *
 * @param {mat2d} out the receiving matrix
 * @returns {mat2d} out
 */
mat2d.identity = function(out) {
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 1;
    out[4] = 0;
    out[5] = 0;
    return out;
};

/**
 * Inverts a mat2d
 *
 * @param {mat2d} out the receiving matrix
 * @param {mat2d} a the source matrix
 * @returns {mat2d} out
 */
mat2d.invert = function(out, a) {
    var aa = a[0], ab = a[1], ac = a[2], ad = a[3],
        atx = a[4], aty = a[5];

    var det = aa * ad - ab * ac;
    if(!det){
        return null;
    }
    det = 1.0 / det;

    out[0] = ad * det;
    out[1] = -ab * det;
    out[2] = -ac * det;
    out[3] = aa * det;
    out[4] = (ac * aty - ad * atx) * det;
    out[5] = (ab * atx - aa * aty) * det;
    return out;
};

/**
 * Calculates the determinant of a mat2d
 *
 * @param {mat2d} a the source matrix
 * @returns {Number} determinant of a
 */
mat2d.determinant = function (a) {
    return a[0] * a[3] - a[1] * a[2];
};

/**
 * Multiplies two mat2d's
 *
 * @param {mat2d} out the receiving matrix
 * @param {mat2d} a the first operand
 * @param {mat2d} b the second operand
 * @returns {mat2d} out
 */
mat2d.multiply = function (out, a, b) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],
        b0 = b[0], b1 = b[1], b2 = b[2], b3 = b[3], b4 = b[4], b5 = b[5];
    out[0] = a0 * b0 + a2 * b1;
    out[1] = a1 * b0 + a3 * b1;
    out[2] = a0 * b2 + a2 * b3;
    out[3] = a1 * b2 + a3 * b3;
    out[4] = a0 * b4 + a2 * b5 + a4;
    out[5] = a1 * b4 + a3 * b5 + a5;
    return out;
};

/**
 * Alias for {@link mat2d.multiply}
 * @function
 */
mat2d.mul = mat2d.multiply;


/**
 * Rotates a mat2d by the given angle
 *
 * @param {mat2d} out the receiving matrix
 * @param {mat2d} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @returns {mat2d} out
 */
mat2d.rotate = function (out, a, rad) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],
        s = Math.sin(rad),
        c = Math.cos(rad);
    out[0] = a0 *  c + a2 * s;
    out[1] = a1 *  c + a3 * s;
    out[2] = a0 * -s + a2 * c;
    out[3] = a1 * -s + a3 * c;
    out[4] = a4;
    out[5] = a5;
    return out;
};

/**
 * Scales the mat2d by the dimensions in the given vec2
 *
 * @param {mat2d} out the receiving matrix
 * @param {mat2d} a the matrix to translate
 * @param {vec2} v the vec2 to scale the matrix by
 * @returns {mat2d} out
 **/
mat2d.scale = function(out, a, v) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],
        v0 = v[0], v1 = v[1];
    out[0] = a0 * v0;
    out[1] = a1 * v0;
    out[2] = a2 * v1;
    out[3] = a3 * v1;
    out[4] = a4;
    out[5] = a5;
    return out;
};

/**
 * Translates the mat2d by the dimensions in the given vec2
 *
 * @param {mat2d} out the receiving matrix
 * @param {mat2d} a the matrix to translate
 * @param {vec2} v the vec2 to translate the matrix by
 * @returns {mat2d} out
 **/
mat2d.translate = function(out, a, v) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3], a4 = a[4], a5 = a[5],
        v0 = v[0], v1 = v[1];
    out[0] = a0;
    out[1] = a1;
    out[2] = a2;
    out[3] = a3;
    out[4] = a0 * v0 + a2 * v1 + a4;
    out[5] = a1 * v0 + a3 * v1 + a5;
    return out;
};

/**
 * Returns a string representation of a mat2d
 *
 * @param {mat2d} a matrix to represent as a string
 * @returns {String} string representation of the matrix
 */
mat2d.str = function (a) {
    return 'mat2d(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + 
                    a[3] + ', ' + a[4] + ', ' + a[5] + ')';
};

/**
 * Returns Frobenius norm of a mat2d
 *
 * @param {mat2d} a the matrix to calculate Frobenius norm of
 * @returns {Number} Frobenius norm
 */
mat2d.frob = function (a) { 
    return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + 1))
}; 

if(typeof(exports) !== 'undefined') {
    exports.mat2d = mat2d;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 3x3 Matrix
 * @name mat3
 */

var mat3 = {};

/**
 * Creates a new identity mat3
 *
 * @returns {mat3} a new 3x3 matrix
 */
mat3.create = function() {
    var out = new GLMAT_ARRAY_TYPE(9);
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 1;
    out[5] = 0;
    out[6] = 0;
    out[7] = 0;
    out[8] = 1;
    return out;
};

/**
 * Copies the upper-left 3x3 values into the given mat3.
 *
 * @param {mat3} out the receiving 3x3 matrix
 * @param {mat4} a   the source 4x4 matrix
 * @returns {mat3} out
 */
mat3.fromMat4 = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[4];
    out[4] = a[5];
    out[5] = a[6];
    out[6] = a[8];
    out[7] = a[9];
    out[8] = a[10];
    return out;
};

/**
 * Creates a new mat3 initialized with values from an existing matrix
 *
 * @param {mat3} a matrix to clone
 * @returns {mat3} a new 3x3 matrix
 */
mat3.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(9);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    out[6] = a[6];
    out[7] = a[7];
    out[8] = a[8];
    return out;
};

/**
 * Copy the values from one mat3 to another
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the source matrix
 * @returns {mat3} out
 */
mat3.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    out[6] = a[6];
    out[7] = a[7];
    out[8] = a[8];
    return out;
};

/**
 * Set a mat3 to the identity matrix
 *
 * @param {mat3} out the receiving matrix
 * @returns {mat3} out
 */
mat3.identity = function(out) {
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 1;
    out[5] = 0;
    out[6] = 0;
    out[7] = 0;
    out[8] = 1;
    return out;
};

/**
 * Transpose the values of a mat3
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the source matrix
 * @returns {mat3} out
 */
mat3.transpose = function(out, a) {
    // If we are transposing ourselves we can skip a few steps but have to cache some values
    if (out === a) {
        var a01 = a[1], a02 = a[2], a12 = a[5];
        out[1] = a[3];
        out[2] = a[6];
        out[3] = a01;
        out[5] = a[7];
        out[6] = a02;
        out[7] = a12;
    } else {
        out[0] = a[0];
        out[1] = a[3];
        out[2] = a[6];
        out[3] = a[1];
        out[4] = a[4];
        out[5] = a[7];
        out[6] = a[2];
        out[7] = a[5];
        out[8] = a[8];
    }
    
    return out;
};

/**
 * Inverts a mat3
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the source matrix
 * @returns {mat3} out
 */
mat3.invert = function(out, a) {
    var a00 = a[0], a01 = a[1], a02 = a[2],
        a10 = a[3], a11 = a[4], a12 = a[5],
        a20 = a[6], a21 = a[7], a22 = a[8],

        b01 = a22 * a11 - a12 * a21,
        b11 = -a22 * a10 + a12 * a20,
        b21 = a21 * a10 - a11 * a20,

        // Calculate the determinant
        det = a00 * b01 + a01 * b11 + a02 * b21;

    if (!det) { 
        return null; 
    }
    det = 1.0 / det;

    out[0] = b01 * det;
    out[1] = (-a22 * a01 + a02 * a21) * det;
    out[2] = (a12 * a01 - a02 * a11) * det;
    out[3] = b11 * det;
    out[4] = (a22 * a00 - a02 * a20) * det;
    out[5] = (-a12 * a00 + a02 * a10) * det;
    out[6] = b21 * det;
    out[7] = (-a21 * a00 + a01 * a20) * det;
    out[8] = (a11 * a00 - a01 * a10) * det;
    return out;
};

/**
 * Calculates the adjugate of a mat3
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the source matrix
 * @returns {mat3} out
 */
mat3.adjoint = function(out, a) {
    var a00 = a[0], a01 = a[1], a02 = a[2],
        a10 = a[3], a11 = a[4], a12 = a[5],
        a20 = a[6], a21 = a[7], a22 = a[8];

    out[0] = (a11 * a22 - a12 * a21);
    out[1] = (a02 * a21 - a01 * a22);
    out[2] = (a01 * a12 - a02 * a11);
    out[3] = (a12 * a20 - a10 * a22);
    out[4] = (a00 * a22 - a02 * a20);
    out[5] = (a02 * a10 - a00 * a12);
    out[6] = (a10 * a21 - a11 * a20);
    out[7] = (a01 * a20 - a00 * a21);
    out[8] = (a00 * a11 - a01 * a10);
    return out;
};

/**
 * Calculates the determinant of a mat3
 *
 * @param {mat3} a the source matrix
 * @returns {Number} determinant of a
 */
mat3.determinant = function (a) {
    var a00 = a[0], a01 = a[1], a02 = a[2],
        a10 = a[3], a11 = a[4], a12 = a[5],
        a20 = a[6], a21 = a[7], a22 = a[8];

    return a00 * (a22 * a11 - a12 * a21) + a01 * (-a22 * a10 + a12 * a20) + a02 * (a21 * a10 - a11 * a20);
};

/**
 * Multiplies two mat3's
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the first operand
 * @param {mat3} b the second operand
 * @returns {mat3} out
 */
mat3.multiply = function (out, a, b) {
    var a00 = a[0], a01 = a[1], a02 = a[2],
        a10 = a[3], a11 = a[4], a12 = a[5],
        a20 = a[6], a21 = a[7], a22 = a[8],

        b00 = b[0], b01 = b[1], b02 = b[2],
        b10 = b[3], b11 = b[4], b12 = b[5],
        b20 = b[6], b21 = b[7], b22 = b[8];

    out[0] = b00 * a00 + b01 * a10 + b02 * a20;
    out[1] = b00 * a01 + b01 * a11 + b02 * a21;
    out[2] = b00 * a02 + b01 * a12 + b02 * a22;

    out[3] = b10 * a00 + b11 * a10 + b12 * a20;
    out[4] = b10 * a01 + b11 * a11 + b12 * a21;
    out[5] = b10 * a02 + b11 * a12 + b12 * a22;

    out[6] = b20 * a00 + b21 * a10 + b22 * a20;
    out[7] = b20 * a01 + b21 * a11 + b22 * a21;
    out[8] = b20 * a02 + b21 * a12 + b22 * a22;
    return out;
};

/**
 * Alias for {@link mat3.multiply}
 * @function
 */
mat3.mul = mat3.multiply;

/**
 * Translate a mat3 by the given vector
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the matrix to translate
 * @param {vec2} v vector to translate by
 * @returns {mat3} out
 */
mat3.translate = function(out, a, v) {
    var a00 = a[0], a01 = a[1], a02 = a[2],
        a10 = a[3], a11 = a[4], a12 = a[5],
        a20 = a[6], a21 = a[7], a22 = a[8],
        x = v[0], y = v[1];

    out[0] = a00;
    out[1] = a01;
    out[2] = a02;

    out[3] = a10;
    out[4] = a11;
    out[5] = a12;

    out[6] = x * a00 + y * a10 + a20;
    out[7] = x * a01 + y * a11 + a21;
    out[8] = x * a02 + y * a12 + a22;
    return out;
};

/**
 * Rotates a mat3 by the given angle
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @returns {mat3} out
 */
mat3.rotate = function (out, a, rad) {
    var a00 = a[0], a01 = a[1], a02 = a[2],
        a10 = a[3], a11 = a[4], a12 = a[5],
        a20 = a[6], a21 = a[7], a22 = a[8],

        s = Math.sin(rad),
        c = Math.cos(rad);

    out[0] = c * a00 + s * a10;
    out[1] = c * a01 + s * a11;
    out[2] = c * a02 + s * a12;

    out[3] = c * a10 - s * a00;
    out[4] = c * a11 - s * a01;
    out[5] = c * a12 - s * a02;

    out[6] = a20;
    out[7] = a21;
    out[8] = a22;
    return out;
};

/**
 * Scales the mat3 by the dimensions in the given vec2
 *
 * @param {mat3} out the receiving matrix
 * @param {mat3} a the matrix to rotate
 * @param {vec2} v the vec2 to scale the matrix by
 * @returns {mat3} out
 **/
mat3.scale = function(out, a, v) {
    var x = v[0], y = v[1];

    out[0] = x * a[0];
    out[1] = x * a[1];
    out[2] = x * a[2];

    out[3] = y * a[3];
    out[4] = y * a[4];
    out[5] = y * a[5];

    out[6] = a[6];
    out[7] = a[7];
    out[8] = a[8];
    return out;
};

/**
 * Copies the values from a mat2d into a mat3
 *
 * @param {mat3} out the receiving matrix
 * @param {mat2d} a the matrix to copy
 * @returns {mat3} out
 **/
mat3.fromMat2d = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = 0;

    out[3] = a[2];
    out[4] = a[3];
    out[5] = 0;

    out[6] = a[4];
    out[7] = a[5];
    out[8] = 1;
    return out;
};

/**
* Calculates a 3x3 matrix from the given quaternion
*
* @param {mat3} out mat3 receiving operation result
* @param {quat} q Quaternion to create matrix from
*
* @returns {mat3} out
*/
mat3.fromQuat = function (out, q) {
    var x = q[0], y = q[1], z = q[2], w = q[3],
        x2 = x + x,
        y2 = y + y,
        z2 = z + z,

        xx = x * x2,
        yx = y * x2,
        yy = y * y2,
        zx = z * x2,
        zy = z * y2,
        zz = z * z2,
        wx = w * x2,
        wy = w * y2,
        wz = w * z2;

    out[0] = 1 - yy - zz;
    out[3] = yx - wz;
    out[6] = zx + wy;

    out[1] = yx + wz;
    out[4] = 1 - xx - zz;
    out[7] = zy - wx;

    out[2] = zx - wy;
    out[5] = zy + wx;
    out[8] = 1 - xx - yy;

    return out;
};

/**
* Calculates a 3x3 normal matrix (transpose inverse) from the 4x4 matrix
*
* @param {mat3} out mat3 receiving operation result
* @param {mat4} a Mat4 to derive the normal matrix from
*
* @returns {mat3} out
*/
mat3.normalFromMat4 = function (out, a) {
    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],

        b00 = a00 * a11 - a01 * a10,
        b01 = a00 * a12 - a02 * a10,
        b02 = a00 * a13 - a03 * a10,
        b03 = a01 * a12 - a02 * a11,
        b04 = a01 * a13 - a03 * a11,
        b05 = a02 * a13 - a03 * a12,
        b06 = a20 * a31 - a21 * a30,
        b07 = a20 * a32 - a22 * a30,
        b08 = a20 * a33 - a23 * a30,
        b09 = a21 * a32 - a22 * a31,
        b10 = a21 * a33 - a23 * a31,
        b11 = a22 * a33 - a23 * a32,

        // Calculate the determinant
        det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;

    if (!det) { 
        return null; 
    }
    det = 1.0 / det;

    out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
    out[1] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
    out[2] = (a10 * b10 - a11 * b08 + a13 * b06) * det;

    out[3] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
    out[4] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
    out[5] = (a01 * b08 - a00 * b10 - a03 * b06) * det;

    out[6] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
    out[7] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
    out[8] = (a30 * b04 - a31 * b02 + a33 * b00) * det;

    return out;
};

/**
 * Returns a string representation of a mat3
 *
 * @param {mat3} mat matrix to represent as a string
 * @returns {String} string representation of the matrix
 */
mat3.str = function (a) {
    return 'mat3(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + 
                    a[3] + ', ' + a[4] + ', ' + a[5] + ', ' + 
                    a[6] + ', ' + a[7] + ', ' + a[8] + ')';
};

/**
 * Returns Frobenius norm of a mat3
 *
 * @param {mat3} a the matrix to calculate Frobenius norm of
 * @returns {Number} Frobenius norm
 */
mat3.frob = function (a) {
    return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2)))
};


if(typeof(exports) !== 'undefined') {
    exports.mat3 = mat3;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class 4x4 Matrix
 * @name mat4
 */

var mat4 = {};

/**
 * Creates a new identity mat4
 *
 * @returns {mat4} a new 4x4 matrix
 */
mat4.create = function() {
    var out = new GLMAT_ARRAY_TYPE(16);
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 0;
    out[5] = 1;
    out[6] = 0;
    out[7] = 0;
    out[8] = 0;
    out[9] = 0;
    out[10] = 1;
    out[11] = 0;
    out[12] = 0;
    out[13] = 0;
    out[14] = 0;
    out[15] = 1;
    return out;
};

/**
 * Creates a new mat4 initialized with values from an existing matrix
 *
 * @param {mat4} a matrix to clone
 * @returns {mat4} a new 4x4 matrix
 */
mat4.clone = function(a) {
    var out = new GLMAT_ARRAY_TYPE(16);
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    out[6] = a[6];
    out[7] = a[7];
    out[8] = a[8];
    out[9] = a[9];
    out[10] = a[10];
    out[11] = a[11];
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
    return out;
};

/**
 * Copy the values from one mat4 to another
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the source matrix
 * @returns {mat4} out
 */
mat4.copy = function(out, a) {
    out[0] = a[0];
    out[1] = a[1];
    out[2] = a[2];
    out[3] = a[3];
    out[4] = a[4];
    out[5] = a[5];
    out[6] = a[6];
    out[7] = a[7];
    out[8] = a[8];
    out[9] = a[9];
    out[10] = a[10];
    out[11] = a[11];
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
    return out;
};

/**
 * Set a mat4 to the identity matrix
 *
 * @param {mat4} out the receiving matrix
 * @returns {mat4} out
 */
mat4.identity = function(out) {
    out[0] = 1;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 0;
    out[5] = 1;
    out[6] = 0;
    out[7] = 0;
    out[8] = 0;
    out[9] = 0;
    out[10] = 1;
    out[11] = 0;
    out[12] = 0;
    out[13] = 0;
    out[14] = 0;
    out[15] = 1;
    return out;
};

/**
 * Transpose the values of a mat4
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the source matrix
 * @returns {mat4} out
 */
mat4.transpose = function(out, a) {
    // If we are transposing ourselves we can skip a few steps but have to cache some values
    if (out === a) {
        var a01 = a[1], a02 = a[2], a03 = a[3],
            a12 = a[6], a13 = a[7],
            a23 = a[11];

        out[1] = a[4];
        out[2] = a[8];
        out[3] = a[12];
        out[4] = a01;
        out[6] = a[9];
        out[7] = a[13];
        out[8] = a02;
        out[9] = a12;
        out[11] = a[14];
        out[12] = a03;
        out[13] = a13;
        out[14] = a23;
    } else {
        out[0] = a[0];
        out[1] = a[4];
        out[2] = a[8];
        out[3] = a[12];
        out[4] = a[1];
        out[5] = a[5];
        out[6] = a[9];
        out[7] = a[13];
        out[8] = a[2];
        out[9] = a[6];
        out[10] = a[10];
        out[11] = a[14];
        out[12] = a[3];
        out[13] = a[7];
        out[14] = a[11];
        out[15] = a[15];
    }
    
    return out;
};

/**
 * Inverts a mat4
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the source matrix
 * @returns {mat4} out
 */
mat4.invert = function(out, a) {
    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],

        b00 = a00 * a11 - a01 * a10,
        b01 = a00 * a12 - a02 * a10,
        b02 = a00 * a13 - a03 * a10,
        b03 = a01 * a12 - a02 * a11,
        b04 = a01 * a13 - a03 * a11,
        b05 = a02 * a13 - a03 * a12,
        b06 = a20 * a31 - a21 * a30,
        b07 = a20 * a32 - a22 * a30,
        b08 = a20 * a33 - a23 * a30,
        b09 = a21 * a32 - a22 * a31,
        b10 = a21 * a33 - a23 * a31,
        b11 = a22 * a33 - a23 * a32,

        // Calculate the determinant
        det = b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;

    if (!det) { 
        return null; 
    }
    det = 1.0 / det;

    out[0] = (a11 * b11 - a12 * b10 + a13 * b09) * det;
    out[1] = (a02 * b10 - a01 * b11 - a03 * b09) * det;
    out[2] = (a31 * b05 - a32 * b04 + a33 * b03) * det;
    out[3] = (a22 * b04 - a21 * b05 - a23 * b03) * det;
    out[4] = (a12 * b08 - a10 * b11 - a13 * b07) * det;
    out[5] = (a00 * b11 - a02 * b08 + a03 * b07) * det;
    out[6] = (a32 * b02 - a30 * b05 - a33 * b01) * det;
    out[7] = (a20 * b05 - a22 * b02 + a23 * b01) * det;
    out[8] = (a10 * b10 - a11 * b08 + a13 * b06) * det;
    out[9] = (a01 * b08 - a00 * b10 - a03 * b06) * det;
    out[10] = (a30 * b04 - a31 * b02 + a33 * b00) * det;
    out[11] = (a21 * b02 - a20 * b04 - a23 * b00) * det;
    out[12] = (a11 * b07 - a10 * b09 - a12 * b06) * det;
    out[13] = (a00 * b09 - a01 * b07 + a02 * b06) * det;
    out[14] = (a31 * b01 - a30 * b03 - a32 * b00) * det;
    out[15] = (a20 * b03 - a21 * b01 + a22 * b00) * det;

    return out;
};

/**
 * Calculates the adjugate of a mat4
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the source matrix
 * @returns {mat4} out
 */
mat4.adjoint = function(out, a) {
    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];

    out[0]  =  (a11 * (a22 * a33 - a23 * a32) - a21 * (a12 * a33 - a13 * a32) + a31 * (a12 * a23 - a13 * a22));
    out[1]  = -(a01 * (a22 * a33 - a23 * a32) - a21 * (a02 * a33 - a03 * a32) + a31 * (a02 * a23 - a03 * a22));
    out[2]  =  (a01 * (a12 * a33 - a13 * a32) - a11 * (a02 * a33 - a03 * a32) + a31 * (a02 * a13 - a03 * a12));
    out[3]  = -(a01 * (a12 * a23 - a13 * a22) - a11 * (a02 * a23 - a03 * a22) + a21 * (a02 * a13 - a03 * a12));
    out[4]  = -(a10 * (a22 * a33 - a23 * a32) - a20 * (a12 * a33 - a13 * a32) + a30 * (a12 * a23 - a13 * a22));
    out[5]  =  (a00 * (a22 * a33 - a23 * a32) - a20 * (a02 * a33 - a03 * a32) + a30 * (a02 * a23 - a03 * a22));
    out[6]  = -(a00 * (a12 * a33 - a13 * a32) - a10 * (a02 * a33 - a03 * a32) + a30 * (a02 * a13 - a03 * a12));
    out[7]  =  (a00 * (a12 * a23 - a13 * a22) - a10 * (a02 * a23 - a03 * a22) + a20 * (a02 * a13 - a03 * a12));
    out[8]  =  (a10 * (a21 * a33 - a23 * a31) - a20 * (a11 * a33 - a13 * a31) + a30 * (a11 * a23 - a13 * a21));
    out[9]  = -(a00 * (a21 * a33 - a23 * a31) - a20 * (a01 * a33 - a03 * a31) + a30 * (a01 * a23 - a03 * a21));
    out[10] =  (a00 * (a11 * a33 - a13 * a31) - a10 * (a01 * a33 - a03 * a31) + a30 * (a01 * a13 - a03 * a11));
    out[11] = -(a00 * (a11 * a23 - a13 * a21) - a10 * (a01 * a23 - a03 * a21) + a20 * (a01 * a13 - a03 * a11));
    out[12] = -(a10 * (a21 * a32 - a22 * a31) - a20 * (a11 * a32 - a12 * a31) + a30 * (a11 * a22 - a12 * a21));
    out[13] =  (a00 * (a21 * a32 - a22 * a31) - a20 * (a01 * a32 - a02 * a31) + a30 * (a01 * a22 - a02 * a21));
    out[14] = -(a00 * (a11 * a32 - a12 * a31) - a10 * (a01 * a32 - a02 * a31) + a30 * (a01 * a12 - a02 * a11));
    out[15] =  (a00 * (a11 * a22 - a12 * a21) - a10 * (a01 * a22 - a02 * a21) + a20 * (a01 * a12 - a02 * a11));
    return out;
};

/**
 * Calculates the determinant of a mat4
 *
 * @param {mat4} a the source matrix
 * @returns {Number} determinant of a
 */
mat4.determinant = function (a) {
    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15],

        b00 = a00 * a11 - a01 * a10,
        b01 = a00 * a12 - a02 * a10,
        b02 = a00 * a13 - a03 * a10,
        b03 = a01 * a12 - a02 * a11,
        b04 = a01 * a13 - a03 * a11,
        b05 = a02 * a13 - a03 * a12,
        b06 = a20 * a31 - a21 * a30,
        b07 = a20 * a32 - a22 * a30,
        b08 = a20 * a33 - a23 * a30,
        b09 = a21 * a32 - a22 * a31,
        b10 = a21 * a33 - a23 * a31,
        b11 = a22 * a33 - a23 * a32;

    // Calculate the determinant
    return b00 * b11 - b01 * b10 + b02 * b09 + b03 * b08 - b04 * b07 + b05 * b06;
};

/**
 * Multiplies two mat4's
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the first operand
 * @param {mat4} b the second operand
 * @returns {mat4} out
 */
mat4.multiply = function (out, a, b) {
    var a00 = a[0], a01 = a[1], a02 = a[2], a03 = a[3],
        a10 = a[4], a11 = a[5], a12 = a[6], a13 = a[7],
        a20 = a[8], a21 = a[9], a22 = a[10], a23 = a[11],
        a30 = a[12], a31 = a[13], a32 = a[14], a33 = a[15];

    // Cache only the current line of the second matrix
    var b0  = b[0], b1 = b[1], b2 = b[2], b3 = b[3];  
    out[0] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
    out[1] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
    out[2] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
    out[3] = b0*a03 + b1*a13 + b2*a23 + b3*a33;

    b0 = b[4]; b1 = b[5]; b2 = b[6]; b3 = b[7];
    out[4] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
    out[5] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
    out[6] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
    out[7] = b0*a03 + b1*a13 + b2*a23 + b3*a33;

    b0 = b[8]; b1 = b[9]; b2 = b[10]; b3 = b[11];
    out[8] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
    out[9] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
    out[10] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
    out[11] = b0*a03 + b1*a13 + b2*a23 + b3*a33;

    b0 = b[12]; b1 = b[13]; b2 = b[14]; b3 = b[15];
    out[12] = b0*a00 + b1*a10 + b2*a20 + b3*a30;
    out[13] = b0*a01 + b1*a11 + b2*a21 + b3*a31;
    out[14] = b0*a02 + b1*a12 + b2*a22 + b3*a32;
    out[15] = b0*a03 + b1*a13 + b2*a23 + b3*a33;
    return out;
};

/**
 * Alias for {@link mat4.multiply}
 * @function
 */
mat4.mul = mat4.multiply;

/**
 * Translate a mat4 by the given vector
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the matrix to translate
 * @param {vec3} v vector to translate by
 * @returns {mat4} out
 */
mat4.translate = function (out, a, v) {
    var x = v[0], y = v[1], z = v[2],
        a00, a01, a02, a03,
        a10, a11, a12, a13,
        a20, a21, a22, a23;

    if (a === out) {
        out[12] = a[0] * x + a[4] * y + a[8] * z + a[12];
        out[13] = a[1] * x + a[5] * y + a[9] * z + a[13];
        out[14] = a[2] * x + a[6] * y + a[10] * z + a[14];
        out[15] = a[3] * x + a[7] * y + a[11] * z + a[15];
    } else {
        a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
        a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
        a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];

        out[0] = a00; out[1] = a01; out[2] = a02; out[3] = a03;
        out[4] = a10; out[5] = a11; out[6] = a12; out[7] = a13;
        out[8] = a20; out[9] = a21; out[10] = a22; out[11] = a23;

        out[12] = a00 * x + a10 * y + a20 * z + a[12];
        out[13] = a01 * x + a11 * y + a21 * z + a[13];
        out[14] = a02 * x + a12 * y + a22 * z + a[14];
        out[15] = a03 * x + a13 * y + a23 * z + a[15];
    }

    return out;
};

/**
 * Scales the mat4 by the dimensions in the given vec3
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the matrix to scale
 * @param {vec3} v the vec3 to scale the matrix by
 * @returns {mat4} out
 **/
mat4.scale = function(out, a, v) {
    var x = v[0], y = v[1], z = v[2];

    out[0] = a[0] * x;
    out[1] = a[1] * x;
    out[2] = a[2] * x;
    out[3] = a[3] * x;
    out[4] = a[4] * y;
    out[5] = a[5] * y;
    out[6] = a[6] * y;
    out[7] = a[7] * y;
    out[8] = a[8] * z;
    out[9] = a[9] * z;
    out[10] = a[10] * z;
    out[11] = a[11] * z;
    out[12] = a[12];
    out[13] = a[13];
    out[14] = a[14];
    out[15] = a[15];
    return out;
};

/**
 * Rotates a mat4 by the given angle
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @param {vec3} axis the axis to rotate around
 * @returns {mat4} out
 */
mat4.rotate = function (out, a, rad, axis) {
    var x = axis[0], y = axis[1], z = axis[2],
        len = Math.sqrt(x * x + y * y + z * z),
        s, c, t,
        a00, a01, a02, a03,
        a10, a11, a12, a13,
        a20, a21, a22, a23,
        b00, b01, b02,
        b10, b11, b12,
        b20, b21, b22;

    if (Math.abs(len) < GLMAT_EPSILON) { return null; }
    
    len = 1 / len;
    x *= len;
    y *= len;
    z *= len;

    s = Math.sin(rad);
    c = Math.cos(rad);
    t = 1 - c;

    a00 = a[0]; a01 = a[1]; a02 = a[2]; a03 = a[3];
    a10 = a[4]; a11 = a[5]; a12 = a[6]; a13 = a[7];
    a20 = a[8]; a21 = a[9]; a22 = a[10]; a23 = a[11];

    // Construct the elements of the rotation matrix
    b00 = x * x * t + c; b01 = y * x * t + z * s; b02 = z * x * t - y * s;
    b10 = x * y * t - z * s; b11 = y * y * t + c; b12 = z * y * t + x * s;
    b20 = x * z * t + y * s; b21 = y * z * t - x * s; b22 = z * z * t + c;

    // Perform rotation-specific matrix multiplication
    out[0] = a00 * b00 + a10 * b01 + a20 * b02;
    out[1] = a01 * b00 + a11 * b01 + a21 * b02;
    out[2] = a02 * b00 + a12 * b01 + a22 * b02;
    out[3] = a03 * b00 + a13 * b01 + a23 * b02;
    out[4] = a00 * b10 + a10 * b11 + a20 * b12;
    out[5] = a01 * b10 + a11 * b11 + a21 * b12;
    out[6] = a02 * b10 + a12 * b11 + a22 * b12;
    out[7] = a03 * b10 + a13 * b11 + a23 * b12;
    out[8] = a00 * b20 + a10 * b21 + a20 * b22;
    out[9] = a01 * b20 + a11 * b21 + a21 * b22;
    out[10] = a02 * b20 + a12 * b21 + a22 * b22;
    out[11] = a03 * b20 + a13 * b21 + a23 * b22;

    if (a !== out) { // If the source and destination differ, copy the unchanged last row
        out[12] = a[12];
        out[13] = a[13];
        out[14] = a[14];
        out[15] = a[15];
    }
    return out;
};

/**
 * Rotates a matrix by the given angle around the X axis
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @returns {mat4} out
 */
mat4.rotateX = function (out, a, rad) {
    var s = Math.sin(rad),
        c = Math.cos(rad),
        a10 = a[4],
        a11 = a[5],
        a12 = a[6],
        a13 = a[7],
        a20 = a[8],
        a21 = a[9],
        a22 = a[10],
        a23 = a[11];

    if (a !== out) { // If the source and destination differ, copy the unchanged rows
        out[0]  = a[0];
        out[1]  = a[1];
        out[2]  = a[2];
        out[3]  = a[3];
        out[12] = a[12];
        out[13] = a[13];
        out[14] = a[14];
        out[15] = a[15];
    }

    // Perform axis-specific matrix multiplication
    out[4] = a10 * c + a20 * s;
    out[5] = a11 * c + a21 * s;
    out[6] = a12 * c + a22 * s;
    out[7] = a13 * c + a23 * s;
    out[8] = a20 * c - a10 * s;
    out[9] = a21 * c - a11 * s;
    out[10] = a22 * c - a12 * s;
    out[11] = a23 * c - a13 * s;
    return out;
};

/**
 * Rotates a matrix by the given angle around the Y axis
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @returns {mat4} out
 */
mat4.rotateY = function (out, a, rad) {
    var s = Math.sin(rad),
        c = Math.cos(rad),
        a00 = a[0],
        a01 = a[1],
        a02 = a[2],
        a03 = a[3],
        a20 = a[8],
        a21 = a[9],
        a22 = a[10],
        a23 = a[11];

    if (a !== out) { // If the source and destination differ, copy the unchanged rows
        out[4]  = a[4];
        out[5]  = a[5];
        out[6]  = a[6];
        out[7]  = a[7];
        out[12] = a[12];
        out[13] = a[13];
        out[14] = a[14];
        out[15] = a[15];
    }

    // Perform axis-specific matrix multiplication
    out[0] = a00 * c - a20 * s;
    out[1] = a01 * c - a21 * s;
    out[2] = a02 * c - a22 * s;
    out[3] = a03 * c - a23 * s;
    out[8] = a00 * s + a20 * c;
    out[9] = a01 * s + a21 * c;
    out[10] = a02 * s + a22 * c;
    out[11] = a03 * s + a23 * c;
    return out;
};

/**
 * Rotates a matrix by the given angle around the Z axis
 *
 * @param {mat4} out the receiving matrix
 * @param {mat4} a the matrix to rotate
 * @param {Number} rad the angle to rotate the matrix by
 * @returns {mat4} out
 */
mat4.rotateZ = function (out, a, rad) {
    var s = Math.sin(rad),
        c = Math.cos(rad),
        a00 = a[0],
        a01 = a[1],
        a02 = a[2],
        a03 = a[3],
        a10 = a[4],
        a11 = a[5],
        a12 = a[6],
        a13 = a[7];

    if (a !== out) { // If the source and destination differ, copy the unchanged last row
        out[8]  = a[8];
        out[9]  = a[9];
        out[10] = a[10];
        out[11] = a[11];
        out[12] = a[12];
        out[13] = a[13];
        out[14] = a[14];
        out[15] = a[15];
    }

    // Perform axis-specific matrix multiplication
    out[0] = a00 * c + a10 * s;
    out[1] = a01 * c + a11 * s;
    out[2] = a02 * c + a12 * s;
    out[3] = a03 * c + a13 * s;
    out[4] = a10 * c - a00 * s;
    out[5] = a11 * c - a01 * s;
    out[6] = a12 * c - a02 * s;
    out[7] = a13 * c - a03 * s;
    return out;
};

/**
 * Creates a matrix from a quaternion rotation and vector translation
 * This is equivalent to (but much faster than):
 *
 *     mat4.identity(dest);
 *     mat4.translate(dest, vec);
 *     var quatMat = mat4.create();
 *     quat4.toMat4(quat, quatMat);
 *     mat4.multiply(dest, quatMat);
 *
 * @param {mat4} out mat4 receiving operation result
 * @param {quat4} q Rotation quaternion
 * @param {vec3} v Translation vector
 * @returns {mat4} out
 */
mat4.fromRotationTranslation = function (out, q, v) {
    // Quaternion math
    var x = q[0], y = q[1], z = q[2], w = q[3],
        x2 = x + x,
        y2 = y + y,
        z2 = z + z,

        xx = x * x2,
        xy = x * y2,
        xz = x * z2,
        yy = y * y2,
        yz = y * z2,
        zz = z * z2,
        wx = w * x2,
        wy = w * y2,
        wz = w * z2;

    out[0] = 1 - (yy + zz);
    out[1] = xy + wz;
    out[2] = xz - wy;
    out[3] = 0;
    out[4] = xy - wz;
    out[5] = 1 - (xx + zz);
    out[6] = yz + wx;
    out[7] = 0;
    out[8] = xz + wy;
    out[9] = yz - wx;
    out[10] = 1 - (xx + yy);
    out[11] = 0;
    out[12] = v[0];
    out[13] = v[1];
    out[14] = v[2];
    out[15] = 1;
    
    return out;
};

mat4.fromQuat = function (out, q) {
    var x = q[0], y = q[1], z = q[2], w = q[3],
        x2 = x + x,
        y2 = y + y,
        z2 = z + z,

        xx = x * x2,
        yx = y * x2,
        yy = y * y2,
        zx = z * x2,
        zy = z * y2,
        zz = z * z2,
        wx = w * x2,
        wy = w * y2,
        wz = w * z2;

    out[0] = 1 - yy - zz;
    out[1] = yx + wz;
    out[2] = zx - wy;
    out[3] = 0;

    out[4] = yx - wz;
    out[5] = 1 - xx - zz;
    out[6] = zy + wx;
    out[7] = 0;

    out[8] = zx + wy;
    out[9] = zy - wx;
    out[10] = 1 - xx - yy;
    out[11] = 0;

    out[12] = 0;
    out[13] = 0;
    out[14] = 0;
    out[15] = 1;

    return out;
};

/**
 * Generates a frustum matrix with the given bounds
 *
 * @param {mat4} out mat4 frustum matrix will be written into
 * @param {Number} left Left bound of the frustum
 * @param {Number} right Right bound of the frustum
 * @param {Number} bottom Bottom bound of the frustum
 * @param {Number} top Top bound of the frustum
 * @param {Number} near Near bound of the frustum
 * @param {Number} far Far bound of the frustum
 * @returns {mat4} out
 */
mat4.frustum = function (out, left, right, bottom, top, near, far) {
    var rl = 1 / (right - left),
        tb = 1 / (top - bottom),
        nf = 1 / (near - far);
    out[0] = (near * 2) * rl;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 0;
    out[5] = (near * 2) * tb;
    out[6] = 0;
    out[7] = 0;
    out[8] = (right + left) * rl;
    out[9] = (top + bottom) * tb;
    out[10] = (far + near) * nf;
    out[11] = -1;
    out[12] = 0;
    out[13] = 0;
    out[14] = (far * near * 2) * nf;
    out[15] = 0;
    return out;
};

/**
 * Generates a perspective projection matrix with the given bounds
 *
 * @param {mat4} out mat4 frustum matrix will be written into
 * @param {number} fovy Vertical field of view in radians
 * @param {number} aspect Aspect ratio. typically viewport width/height
 * @param {number} near Near bound of the frustum
 * @param {number} far Far bound of the frustum
 * @returns {mat4} out
 */
mat4.perspective = function (out, fovy, aspect, near, far) {
    var f = 1.0 / Math.tan(fovy / 2),
        nf = 1 / (near - far);
    out[0] = f / aspect;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 0;
    out[5] = f;
    out[6] = 0;
    out[7] = 0;
    out[8] = 0;
    out[9] = 0;
    out[10] = (far + near) * nf;
    out[11] = -1;
    out[12] = 0;
    out[13] = 0;
    out[14] = (2 * far * near) * nf;
    out[15] = 0;
    return out;
};

/**
 * Generates a orthogonal projection matrix with the given bounds
 *
 * @param {mat4} out mat4 frustum matrix will be written into
 * @param {number} left Left bound of the frustum
 * @param {number} right Right bound of the frustum
 * @param {number} bottom Bottom bound of the frustum
 * @param {number} top Top bound of the frustum
 * @param {number} near Near bound of the frustum
 * @param {number} far Far bound of the frustum
 * @returns {mat4} out
 */
mat4.ortho = function (out, left, right, bottom, top, near, far) {
    var lr = 1 / (left - right),
        bt = 1 / (bottom - top),
        nf = 1 / (near - far);
    out[0] = -2 * lr;
    out[1] = 0;
    out[2] = 0;
    out[3] = 0;
    out[4] = 0;
    out[5] = -2 * bt;
    out[6] = 0;
    out[7] = 0;
    out[8] = 0;
    out[9] = 0;
    out[10] = 2 * nf;
    out[11] = 0;
    out[12] = (left + right) * lr;
    out[13] = (top + bottom) * bt;
    out[14] = (far + near) * nf;
    out[15] = 1;
    return out;
};

/**
 * Generates a look-at matrix with the given eye position, focal point, and up axis
 *
 * @param {mat4} out mat4 frustum matrix will be written into
 * @param {vec3} eye Position of the viewer
 * @param {vec3} center Point the viewer is looking at
 * @param {vec3} up vec3 pointing up
 * @returns {mat4} out
 */
mat4.lookAt = function (out, eye, center, up) {
    var x0, x1, x2, y0, y1, y2, z0, z1, z2, len,
        eyex = eye[0],
        eyey = eye[1],
        eyez = eye[2],
        upx = up[0],
        upy = up[1],
        upz = up[2],
        centerx = center[0],
        centery = center[1],
        centerz = center[2];

    if (Math.abs(eyex - centerx) < GLMAT_EPSILON &&
        Math.abs(eyey - centery) < GLMAT_EPSILON &&
        Math.abs(eyez - centerz) < GLMAT_EPSILON) {
        return mat4.identity(out);
    }

    z0 = eyex - centerx;
    z1 = eyey - centery;
    z2 = eyez - centerz;

    len = 1 / Math.sqrt(z0 * z0 + z1 * z1 + z2 * z2);
    z0 *= len;
    z1 *= len;
    z2 *= len;

    x0 = upy * z2 - upz * z1;
    x1 = upz * z0 - upx * z2;
    x2 = upx * z1 - upy * z0;
    len = Math.sqrt(x0 * x0 + x1 * x1 + x2 * x2);
    if (!len) {
        x0 = 0;
        x1 = 0;
        x2 = 0;
    } else {
        len = 1 / len;
        x0 *= len;
        x1 *= len;
        x2 *= len;
    }

    y0 = z1 * x2 - z2 * x1;
    y1 = z2 * x0 - z0 * x2;
    y2 = z0 * x1 - z1 * x0;

    len = Math.sqrt(y0 * y0 + y1 * y1 + y2 * y2);
    if (!len) {
        y0 = 0;
        y1 = 0;
        y2 = 0;
    } else {
        len = 1 / len;
        y0 *= len;
        y1 *= len;
        y2 *= len;
    }

    out[0] = x0;
    out[1] = y0;
    out[2] = z0;
    out[3] = 0;
    out[4] = x1;
    out[5] = y1;
    out[6] = z1;
    out[7] = 0;
    out[8] = x2;
    out[9] = y2;
    out[10] = z2;
    out[11] = 0;
    out[12] = -(x0 * eyex + x1 * eyey + x2 * eyez);
    out[13] = -(y0 * eyex + y1 * eyey + y2 * eyez);
    out[14] = -(z0 * eyex + z1 * eyey + z2 * eyez);
    out[15] = 1;

    return out;
};

/**
 * Returns a string representation of a mat4
 *
 * @param {mat4} mat matrix to represent as a string
 * @returns {String} string representation of the matrix
 */
mat4.str = function (a) {
    return 'mat4(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ', ' +
                    a[4] + ', ' + a[5] + ', ' + a[6] + ', ' + a[7] + ', ' +
                    a[8] + ', ' + a[9] + ', ' + a[10] + ', ' + a[11] + ', ' + 
                    a[12] + ', ' + a[13] + ', ' + a[14] + ', ' + a[15] + ')';
};

/**
 * Returns Frobenius norm of a mat4
 *
 * @param {mat4} a the matrix to calculate Frobenius norm of
 * @returns {Number} Frobenius norm
 */
mat4.frob = function (a) {
    return(Math.sqrt(Math.pow(a[0], 2) + Math.pow(a[1], 2) + Math.pow(a[2], 2) + Math.pow(a[3], 2) + Math.pow(a[4], 2) + Math.pow(a[5], 2) + Math.pow(a[6], 2) + Math.pow(a[6], 2) + Math.pow(a[7], 2) + Math.pow(a[8], 2) + Math.pow(a[9], 2) + Math.pow(a[10], 2) + Math.pow(a[11], 2) + Math.pow(a[12], 2) + Math.pow(a[13], 2) + Math.pow(a[14], 2) + Math.pow(a[15], 2) ))
};


if(typeof(exports) !== 'undefined') {
    exports.mat4 = mat4;
}
;
/* Copyright (c) 2013, Brandon Jones, Colin MacKenzie IV. All rights reserved.

Redistribution and use in source and binary forms, with or without modification,
are permitted provided that the following conditions are met:

  * Redistributions of source code must retain the above copyright notice, this
    list of conditions and the following disclaimer.
  * Redistributions in binary form must reproduce the above copyright notice,
    this list of conditions and the following disclaimer in the documentation 
    and/or other materials provided with the distribution.

THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */

/**
 * @class Quaternion
 * @name quat
 */

var quat = {};

/**
 * Creates a new identity quat
 *
 * @returns {quat} a new quaternion
 */
quat.create = function() {
    var out = new GLMAT_ARRAY_TYPE(4);
    out[0] = 0;
    out[1] = 0;
    out[2] = 0;
    out[3] = 1;
    return out;
};

/**
 * Sets a quaternion to represent the shortest rotation from one
 * vector to another.
 *
 * Both vectors are assumed to be unit length.
 *
 * @param {quat} out the receiving quaternion.
 * @param {vec3} a the initial vector
 * @param {vec3} b the destination vector
 * @returns {quat} out
 */
quat.rotationTo = (function() {
    var tmpvec3 = vec3.create();
    var xUnitVec3 = vec3.fromValues(1,0,0);
    var yUnitVec3 = vec3.fromValues(0,1,0);

    return function(out, a, b) {
        var dot = vec3.dot(a, b);
        if (dot < -0.999999) {
            vec3.cross(tmpvec3, xUnitVec3, a);
            if (vec3.length(tmpvec3) < 0.000001)
                vec3.cross(tmpvec3, yUnitVec3, a);
            vec3.normalize(tmpvec3, tmpvec3);
            quat.setAxisAngle(out, tmpvec3, Math.PI);
            return out;
        } else if (dot > 0.999999) {
            out[0] = 0;
            out[1] = 0;
            out[2] = 0;
            out[3] = 1;
            return out;
        } else {
            vec3.cross(tmpvec3, a, b);
            out[0] = tmpvec3[0];
            out[1] = tmpvec3[1];
            out[2] = tmpvec3[2];
            out[3] = 1 + dot;
            return quat.normalize(out, out);
        }
    };
})();

/**
 * Sets the specified quaternion with values corresponding to the given
 * axes. Each axis is a vec3 and is expected to be unit length and
 * perpendicular to all other specified axes.
 *
 * @param {vec3} view  the vector representing the viewing direction
 * @param {vec3} right the vector representing the local "right" direction
 * @param {vec3} up    the vector representing the local "up" direction
 * @returns {quat} out
 */
quat.setAxes = (function() {
    var matr = mat3.create();

    return function(out, view, right, up) {
        matr[0] = right[0];
        matr[3] = right[1];
        matr[6] = right[2];

        matr[1] = up[0];
        matr[4] = up[1];
        matr[7] = up[2];

        matr[2] = -view[0];
        matr[5] = -view[1];
        matr[8] = -view[2];

        return quat.normalize(out, quat.fromMat3(out, matr));
    };
})();

/**
 * Creates a new quat initialized with values from an existing quaternion
 *
 * @param {quat} a quaternion to clone
 * @returns {quat} a new quaternion
 * @function
 */
quat.clone = vec4.clone;

/**
 * Creates a new quat initialized with the given values
 *
 * @param {Number} x X component
 * @param {Number} y Y component
 * @param {Number} z Z component
 * @param {Number} w W component
 * @returns {quat} a new quaternion
 * @function
 */
quat.fromValues = vec4.fromValues;

/**
 * Copy the values from one quat to another
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a the source quaternion
 * @returns {quat} out
 * @function
 */
quat.copy = vec4.copy;

/**
 * Set the components of a quat to the given values
 *
 * @param {quat} out the receiving quaternion
 * @param {Number} x X component
 * @param {Number} y Y component
 * @param {Number} z Z component
 * @param {Number} w W component
 * @returns {quat} out
 * @function
 */
quat.set = vec4.set;

/**
 * Set a quat to the identity quaternion
 *
 * @param {quat} out the receiving quaternion
 * @returns {quat} out
 */
quat.identity = function(out) {
    out[0] = 0;
    out[1] = 0;
    out[2] = 0;
    out[3] = 1;
    return out;
};

/**
 * Sets a quat from the given angle and rotation axis,
 * then returns it.
 *
 * @param {quat} out the receiving quaternion
 * @param {vec3} axis the axis around which to rotate
 * @param {Number} rad the angle in radians
 * @returns {quat} out
 **/
quat.setAxisAngle = function(out, axis, rad) {
    rad = rad * 0.5;
    var s = Math.sin(rad);
    out[0] = s * axis[0];
    out[1] = s * axis[1];
    out[2] = s * axis[2];
    out[3] = Math.cos(rad);
    return out;
};

/**
 * Adds two quat's
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a the first operand
 * @param {quat} b the second operand
 * @returns {quat} out
 * @function
 */
quat.add = vec4.add;

/**
 * Multiplies two quat's
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a the first operand
 * @param {quat} b the second operand
 * @returns {quat} out
 */
quat.multiply = function(out, a, b) {
    var ax = a[0], ay = a[1], az = a[2], aw = a[3],
        bx = b[0], by = b[1], bz = b[2], bw = b[3];

    out[0] = ax * bw + aw * bx + ay * bz - az * by;
    out[1] = ay * bw + aw * by + az * bx - ax * bz;
    out[2] = az * bw + aw * bz + ax * by - ay * bx;
    out[3] = aw * bw - ax * bx - ay * by - az * bz;
    return out;
};

/**
 * Alias for {@link quat.multiply}
 * @function
 */
quat.mul = quat.multiply;

/**
 * Scales a quat by a scalar number
 *
 * @param {quat} out the receiving vector
 * @param {quat} a the vector to scale
 * @param {Number} b amount to scale the vector by
 * @returns {quat} out
 * @function
 */
quat.scale = vec4.scale;

/**
 * Rotates a quaternion by the given angle about the X axis
 *
 * @param {quat} out quat receiving operation result
 * @param {quat} a quat to rotate
 * @param {number} rad angle (in radians) to rotate
 * @returns {quat} out
 */
quat.rotateX = function (out, a, rad) {
    rad *= 0.5; 

    var ax = a[0], ay = a[1], az = a[2], aw = a[3],
        bx = Math.sin(rad), bw = Math.cos(rad);

    out[0] = ax * bw + aw * bx;
    out[1] = ay * bw + az * bx;
    out[2] = az * bw - ay * bx;
    out[3] = aw * bw - ax * bx;
    return out;
};

/**
 * Rotates a quaternion by the given angle about the Y axis
 *
 * @param {quat} out quat receiving operation result
 * @param {quat} a quat to rotate
 * @param {number} rad angle (in radians) to rotate
 * @returns {quat} out
 */
quat.rotateY = function (out, a, rad) {
    rad *= 0.5; 

    var ax = a[0], ay = a[1], az = a[2], aw = a[3],
        by = Math.sin(rad), bw = Math.cos(rad);

    out[0] = ax * bw - az * by;
    out[1] = ay * bw + aw * by;
    out[2] = az * bw + ax * by;
    out[3] = aw * bw - ay * by;
    return out;
};

/**
 * Rotates a quaternion by the given angle about the Z axis
 *
 * @param {quat} out quat receiving operation result
 * @param {quat} a quat to rotate
 * @param {number} rad angle (in radians) to rotate
 * @returns {quat} out
 */
quat.rotateZ = function (out, a, rad) {
    rad *= 0.5; 

    var ax = a[0], ay = a[1], az = a[2], aw = a[3],
        bz = Math.sin(rad), bw = Math.cos(rad);

    out[0] = ax * bw + ay * bz;
    out[1] = ay * bw - ax * bz;
    out[2] = az * bw + aw * bz;
    out[3] = aw * bw - az * bz;
    return out;
};

/**
 * Calculates the W component of a quat from the X, Y, and Z components.
 * Assumes that quaternion is 1 unit in length.
 * Any existing W component will be ignored.
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a quat to calculate W component of
 * @returns {quat} out
 */
quat.calculateW = function (out, a) {
    var x = a[0], y = a[1], z = a[2];

    out[0] = x;
    out[1] = y;
    out[2] = z;
    out[3] = -Math.sqrt(Math.abs(1.0 - x * x - y * y - z * z));
    return out;
};

/**
 * Calculates the dot product of two quat's
 *
 * @param {quat} a the first operand
 * @param {quat} b the second operand
 * @returns {Number} dot product of a and b
 * @function
 */
quat.dot = vec4.dot;

/**
 * Performs a linear interpolation between two quat's
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a the first operand
 * @param {quat} b the second operand
 * @param {Number} t interpolation amount between the two inputs
 * @returns {quat} out
 * @function
 */
quat.lerp = vec4.lerp;

/**
 * Performs a spherical linear interpolation between two quat
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a the first operand
 * @param {quat} b the second operand
 * @param {Number} t interpolation amount between the two inputs
 * @returns {quat} out
 */
quat.slerp = function (out, a, b, t) {
    // benchmarks:
    //    http://jsperf.com/quaternion-slerp-implementations

    var ax = a[0], ay = a[1], az = a[2], aw = a[3],
        bx = b[0], by = b[1], bz = b[2], bw = b[3];

    var        omega, cosom, sinom, scale0, scale1;

    // calc cosine
    cosom = ax * bx + ay * by + az * bz + aw * bw;
    // adjust signs (if necessary)
    if ( cosom < 0.0 ) {
        cosom = -cosom;
        bx = - bx;
        by = - by;
        bz = - bz;
        bw = - bw;
    }
    // calculate coefficients
    if ( (1.0 - cosom) > 0.000001 ) {
        // standard case (slerp)
        omega  = Math.acos(cosom);
        sinom  = Math.sin(omega);
        scale0 = Math.sin((1.0 - t) * omega) / sinom;
        scale1 = Math.sin(t * omega) / sinom;
    } else {        
        // "from" and "to" quaternions are very close 
        //  ... so we can do a linear interpolation
        scale0 = 1.0 - t;
        scale1 = t;
    }
    // calculate final values
    out[0] = scale0 * ax + scale1 * bx;
    out[1] = scale0 * ay + scale1 * by;
    out[2] = scale0 * az + scale1 * bz;
    out[3] = scale0 * aw + scale1 * bw;
    
    return out;
};

/**
 * Calculates the inverse of a quat
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a quat to calculate inverse of
 * @returns {quat} out
 */
quat.invert = function(out, a) {
    var a0 = a[0], a1 = a[1], a2 = a[2], a3 = a[3],
        dot = a0*a0 + a1*a1 + a2*a2 + a3*a3,
        invDot = dot ? 1.0/dot : 0;
    
    // TODO: Would be faster to return [0,0,0,0] immediately if dot == 0

    out[0] = -a0*invDot;
    out[1] = -a1*invDot;
    out[2] = -a2*invDot;
    out[3] = a3*invDot;
    return out;
};

/**
 * Calculates the conjugate of a quat
 * If the quaternion is normalized, this function is faster than quat.inverse and produces the same result.
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a quat to calculate conjugate of
 * @returns {quat} out
 */
quat.conjugate = function (out, a) {
    out[0] = -a[0];
    out[1] = -a[1];
    out[2] = -a[2];
    out[3] = a[3];
    return out;
};

/**
 * Calculates the length of a quat
 *
 * @param {quat} a vector to calculate length of
 * @returns {Number} length of a
 * @function
 */
quat.length = vec4.length;

/**
 * Alias for {@link quat.length}
 * @function
 */
quat.len = quat.length;

/**
 * Calculates the squared length of a quat
 *
 * @param {quat} a vector to calculate squared length of
 * @returns {Number} squared length of a
 * @function
 */
quat.squaredLength = vec4.squaredLength;

/**
 * Alias for {@link quat.squaredLength}
 * @function
 */
quat.sqrLen = quat.squaredLength;

/**
 * Normalize a quat
 *
 * @param {quat} out the receiving quaternion
 * @param {quat} a quaternion to normalize
 * @returns {quat} out
 * @function
 */
quat.normalize = vec4.normalize;

/**
 * Creates a quaternion from the given 3x3 rotation matrix.
 *
 * NOTE: The resultant quaternion is not normalized, so you should be sure
 * to renormalize the quaternion yourself where necessary.
 *
 * @param {quat} out the receiving quaternion
 * @param {mat3} m rotation matrix
 * @returns {quat} out
 * @function
 */
quat.fromMat3 = function(out, m) {
    // Algorithm in Ken Shoemake's article in 1987 SIGGRAPH course notes
    // article "Quaternion Calculus and Fast Animation".
    var fTrace = m[0] + m[4] + m[8];
    var fRoot;

    if ( fTrace > 0.0 ) {
        // |w| > 1/2, may as well choose w > 1/2
        fRoot = Math.sqrt(fTrace + 1.0);  // 2w
        out[3] = 0.5 * fRoot;
        fRoot = 0.5/fRoot;  // 1/(4w)
        out[0] = (m[7]-m[5])*fRoot;
        out[1] = (m[2]-m[6])*fRoot;
        out[2] = (m[3]-m[1])*fRoot;
    } else {
        // |w| <= 1/2
        var i = 0;
        if ( m[4] > m[0] )
          i = 1;
        if ( m[8] > m[i*3+i] )
          i = 2;
        var j = (i+1)%3;
        var k = (i+2)%3;
        
        fRoot = Math.sqrt(m[i*3+i]-m[j*3+j]-m[k*3+k] + 1.0);
        out[i] = 0.5 * fRoot;
        fRoot = 0.5 / fRoot;
        out[3] = (m[k*3+j] - m[j*3+k]) * fRoot;
        out[j] = (m[j*3+i] + m[i*3+j]) * fRoot;
        out[k] = (m[k*3+i] + m[i*3+k]) * fRoot;
    }
    
    return out;
};

/**
 * Returns a string representation of a quatenion
 *
 * @param {quat} vec vector to represent as a string
 * @returns {String} string representation of the vector
 */
quat.str = function (a) {
    return 'quat(' + a[0] + ', ' + a[1] + ', ' + a[2] + ', ' + a[3] + ')';
};

if(typeof(exports) !== 'undefined') {
    exports.quat = quat;
}
;













  })(shim.exports);
})(this);

(function(window) {

  // Namespace
  ionic.Animation = ionic.Animation || {};


  ionic.Animation.TimingFn = {
    'linear': function(duration) {
      return function(t) {
        return ionic.Animation.Bezier.linear(t, duration);
      }
    },
    'ease': function(duration) {
      return function(t) {
        return ionic.Animation.Bezier.ease(t, duration);
      }
    },
    'ease-in': function(duration) {
      return function(t) {
        return ionic.Animation.Bezier.easeIn(t, duration);
      }
    },
    'ease-out': function(duration) {
      return function(t) {
        return ionic.Animation.Bezier.easeOut(t, duration);
      }
    },
    'ease-in-out': function(duration) {
      return function(t) {
        return ionic.Animation.Bezier.easeInOut(t, duration);
      }
    }
  };
})(window);

})();