// Generated by CoffeeScript 1.6.2
/*!
jQuery Waypoints - v2.0.5
Copyright (c) 2011-2014 Caleb Troughton
Licensed under the MIT license.
https://github.com/imakewebthings/jquery-waypoints/blob/master/licenses.txt
*/
;(function () {
	var t =
			[].indexOf ||
			function (t) {
				for (var e = 0, n = this.length; e < n; e++) {
					if (e in this && this[e] === t) return e
				}
				return -1
			},
		e = [].slice
	;(function (t, e) {
		if (typeof define === 'function' && define.amd) {
			return define('waypoints', ['jquery'], function (n) {
				return e(n, t)
			})
		} else {
			return e(t.jQuery, t)
		}
	})(window, function (n, r) {
		var i, o, l, s, f, u, c, a, h, d, p, y, v, w, g, m
		i = n(r)
		a = t.call(r, 'ontouchstart') >= 0
		s = {
			horizontal: {},
			vertical: {},
		}
		f = 1
		c = {}
		u = 'waypoints-context-id'
		p = 'resize.waypoints'
		y = 'scroll.waypoints'
		v = 1
		w = 'waypoints-waypoint-ids'
		g = 'waypoint'
		m = 'waypoints'
		o = (function () {
			function t(t) {
				var e = this
				this.$element = t
				this.element = t[0]
				this.didResize = false
				this.didScroll = false
				this.id = 'context' + f++
				this.oldScroll = {
					x: t.scrollLeft(),
					y: t.scrollTop(),
				}
				this.waypoints = {
					horizontal: {},
					vertical: {},
				}
				this.element[u] = this.id
				c[this.id] = this
				t.bind(y, function () {
					var t
					if (!(e.didScroll || a)) {
						e.didScroll = true
						t = function () {
							e.doScroll()
							return (e.didScroll = false)
						}
						return r.setTimeout(t, n[m].settings.scrollThrottle)
					}
				})
				t.bind(p, function () {
					var t
					if (!e.didResize) {
						e.didResize = true
						t = function () {
							n[m]('refresh')
							return (e.didResize = false)
						}
						return r.setTimeout(t, n[m].settings.resizeThrottle)
					}
				})
			}
			t.prototype.doScroll = function () {
				var t,
					e = this
				t = {
					horizontal: {
						newScroll: this.$element.scrollLeft(),
						oldScroll: this.oldScroll.x,
						forward: 'right',
						backward: 'left',
					},
					vertical: {
						newScroll: this.$element.scrollTop(),
						oldScroll: this.oldScroll.y,
						forward: 'down',
						backward: 'up',
					},
				}
				if (a && (!t.vertical.oldScroll || !t.vertical.newScroll)) {
					n[m]('refresh')
				}
				n.each(t, function (t, r) {
					var i, o, l
					l = []
					o = r.newScroll > r.oldScroll
					i = o ? r.forward : r.backward
					n.each(e.waypoints[t], function (t, e) {
						var n, i
						if (r.oldScroll < (n = e.offset) && n <= r.newScroll) {
							return l.push(e)
						} else if (r.newScroll < (i = e.offset) && i <= r.oldScroll) {
							return l.push(e)
						}
					})
					l.sort(function (t, e) {
						return t.offset - e.offset
					})
					if (!o) {
						l.reverse()
					}
					return n.each(l, function (t, e) {
						if (e.options.continuous || t === l.length - 1) {
							return e.trigger([i])
						}
					})
				})
				return (this.oldScroll = {
					x: t.horizontal.newScroll,
					y: t.vertical.newScroll,
				})
			}
			t.prototype.refresh = function () {
				var t,
					e,
					r,
					i = this
				r = n.isWindow(this.element)
				e = this.$element.offset()
				this.doScroll()
				t = {
					horizontal: {
						contextOffset: r ? 0 : e.left,
						contextScroll: r ? 0 : this.oldScroll.x,
						contextDimension: this.$element.width(),
						oldScroll: this.oldScroll.x,
						forward: 'right',
						backward: 'left',
						offsetProp: 'left',
					},
					vertical: {
						contextOffset: r ? 0 : e.top,
						contextScroll: r ? 0 : this.oldScroll.y,
						contextDimension: r ? n[m]('viewportHeight') : this.$element.height(),
						oldScroll: this.oldScroll.y,
						forward: 'down',
						backward: 'up',
						offsetProp: 'top',
					},
				}
				return n.each(t, function (t, e) {
					return n.each(i.waypoints[t], function (t, r) {
						var i, o, l, s, f
						i = r.options.offset
						l = r.offset
						o = n.isWindow(r.element) ? 0 : r.$element.offset()[e.offsetProp]
						if (n.isFunction(i)) {
							i = i.apply(r.element)
						} else if (typeof i === 'string') {
							i = parseFloat(i)
							if (r.options.offset.indexOf('%') > -1) {
								i = Math.ceil((e.contextDimension * i) / 100)
							}
						}
						r.offset = o - e.contextOffset + e.contextScroll - i
						if ((r.options.onlyOnScroll && l != null) || !r.enabled) {
							return
						}
						if (l !== null && l < (s = e.oldScroll) && s <= r.offset) {
							return r.trigger([e.backward])
						} else if (l !== null && l > (f = e.oldScroll) && f >= r.offset) {
							return r.trigger([e.forward])
						} else if (l === null && e.oldScroll >= r.offset) {
							return r.trigger([e.forward])
						}
					})
				})
			}
			t.prototype.checkEmpty = function () {
				if (n.isEmptyObject(this.waypoints.horizontal) && n.isEmptyObject(this.waypoints.vertical)) {
					this.$element.unbind([p, y].join(' '))
					return delete c[this.id]
				}
			}
			return t
		})()
		l = (function () {
			function t(t, e, r) {
				var i, o
				if (r.offset === 'bottom-in-view') {
					r.offset = function () {
						var t
						t = n[m]('viewportHeight')
						if (!n.isWindow(e.element)) {
							t = e.$element.height()
						}
						return t - n(this).outerHeight()
					}
				}
				this.$element = t
				this.element = t[0]
				this.axis = r.horizontal ? 'horizontal' : 'vertical'
				this.callback = r.handler
				this.context = e
				this.enabled = r.enabled
				this.id = 'waypoints' + v++
				this.offset = null
				this.options = r
				e.waypoints[this.axis][this.id] = this
				s[this.axis][this.id] = this
				i = (o = this.element[w]) != null ? o : []
				i.push(this.id)
				this.element[w] = i
			}
			t.prototype.trigger = function (t) {
				if (!this.enabled) {
					return
				}
				if (this.callback != null) {
					this.callback.apply(this.element, t)
				}
				if (this.options.triggerOnce) {
					return this.destroy()
				}
			}
			t.prototype.disable = function () {
				return (this.enabled = false)
			}
			t.prototype.enable = function () {
				this.context.refresh()
				return (this.enabled = true)
			}
			t.prototype.destroy = function () {
				delete s[this.axis][this.id]
				delete this.context.waypoints[this.axis][this.id]
				return this.context.checkEmpty()
			}
			t.getWaypointsByElement = function (t) {
				var e, r
				r = t[w]
				if (!r) {
					return []
				}
				e = n.extend({}, s.horizontal, s.vertical)
				return n.map(r, function (t) {
					return e[t]
				})
			}
			return t
		})()
		d = {
			init: function (t, e) {
				var r
				e = n.extend({}, n.fn[g].defaults, e)
				if ((r = e.handler) == null) {
					e.handler = t
				}
				this.each(function () {
					var t, r, i, s
					t = n(this)
					i = (s = e.context) != null ? s : n.fn[g].defaults.context
					if (!n.isWindow(i)) {
						i = t.closest(i)
					}
					i = n(i)
					r = c[i[0][u]]
					if (!r) {
						r = new o(i)
					}
					return new l(t, r, e)
				})
				n[m]('refresh')
				return this
			},
			disable: function () {
				return d._invoke.call(this, 'disable')
			},
			enable: function () {
				return d._invoke.call(this, 'enable')
			},
			destroy: function () {
				return d._invoke.call(this, 'destroy')
			},
			prev: function (t, e) {
				return d._traverse.call(this, t, e, function (t, e, n) {
					if (e > 0) {
						return t.push(n[e - 1])
					}
				})
			},
			next: function (t, e) {
				return d._traverse.call(this, t, e, function (t, e, n) {
					if (e < n.length - 1) {
						return t.push(n[e + 1])
					}
				})
			},
			_traverse: function (t, e, i) {
				var o, l
				if (t == null) {
					t = 'vertical'
				}
				if (e == null) {
					e = r
				}
				l = h.aggregate(e)
				o = []
				this.each(function () {
					var e
					e = n.inArray(this, l[t])
					return i(o, e, l[t])
				})
				return this.pushStack(o)
			},
			_invoke: function (t) {
				this.each(function () {
					var e
					e = l.getWaypointsByElement(this)
					return n.each(e, function (e, n) {
						n[t]()
						return true
					})
				})
				return this
			},
		}
		n.fn[g] = function () {
			var t, r
			;(r = arguments[0]), (t = 2 <= arguments.length ? e.call(arguments, 1) : [])
			if (d[r]) {
				return d[r].apply(this, t)
			} else if (n.isFunction(r)) {
				return d.init.apply(this, arguments)
			} else if (n.isPlainObject(r)) {
				return d.init.apply(this, [null, r])
			} else if (!r) {
				return n.error('jQuery Waypoints needs a callback function or handler option.')
			} else {
				return n.error('The ' + r + ' method does not exist in jQuery Waypoints.')
			}
		}
		n.fn[g].defaults = {
			context: r,
			continuous: true,
			enabled: true,
			horizontal: false,
			offset: 0,
			triggerOnce: false,
		}
		h = {
			refresh: function () {
				return n.each(c, function (t, e) {
					return e.refresh()
				})
			},
			viewportHeight: function () {
				var t
				return (t = r.innerHeight) != null ? t : i.height()
			},
			aggregate: function (t) {
				var e, r, i
				e = s
				if (t) {
					e = (i = c[n(t)[0][u]]) != null ? i.waypoints : void 0
				}
				if (!e) {
					return []
				}
				r = {
					horizontal: [],
					vertical: [],
				}
				n.each(r, function (t, i) {
					n.each(e[t], function (t, e) {
						return i.push(e)
					})
					i.sort(function (t, e) {
						return t.offset - e.offset
					})
					r[t] = n.map(i, function (t) {
						return t.element
					})
					return (r[t] = n.unique(r[t]))
				})
				return r
			},
			above: function (t) {
				if (t == null) {
					t = r
				}
				return h._filter(t, 'vertical', function (t, e) {
					return e.offset <= t.oldScroll.y
				})
			},
			below: function (t) {
				if (t == null) {
					t = r
				}
				return h._filter(t, 'vertical', function (t, e) {
					return e.offset > t.oldScroll.y
				})
			},
			left: function (t) {
				if (t == null) {
					t = r
				}
				return h._filter(t, 'horizontal', function (t, e) {
					return e.offset <= t.oldScroll.x
				})
			},
			right: function (t) {
				if (t == null) {
					t = r
				}
				return h._filter(t, 'horizontal', function (t, e) {
					return e.offset > t.oldScroll.x
				})
			},
			enable: function () {
				return h._invoke('enable')
			},
			disable: function () {
				return h._invoke('disable')
			},
			destroy: function () {
				return h._invoke('destroy')
			},
			extendFn: function (t, e) {
				return (d[t] = e)
			},
			_invoke: function (t) {
				var e
				e = n.extend({}, s.vertical, s.horizontal)
				return n.each(e, function (e, n) {
					n[t]()
					return true
				})
			},
			_filter: function (t, e, r) {
				var i, o
				i = c[n(t)[0][u]]
				if (!i) {
					return []
				}
				o = []
				n.each(i.waypoints[e], function (t, e) {
					if (r(i, e)) {
						return o.push(e)
					}
				})
				o.sort(function (t, e) {
					return t.offset - e.offset
				})
				return n.map(o, function (t) {
					return t.element
				})
			},
		}
		n[m] = function () {
			var t, n
			;(n = arguments[0]), (t = 2 <= arguments.length ? e.call(arguments, 1) : [])
			if (h[n]) {
				return h[n].apply(null, t)
			} else {
				return h.aggregate.call(null, n)
			}
		}
		n[m].settings = {
			resizeThrottle: 100,
			scrollThrottle: 30,
		}
		return i.on('load.waypoints', function () {
			return n[m]('refresh')
		})
	})
}.call(this))