/*! offline-js 0.7.18 */ (function() { var Offline, checkXHR, defaultOptions, extendNative, grab, handlers, init; extendNative = function(to, from) { var key, results, val; results = []; for (key in from.prototype) try { val = from.prototype[key], null == to[key] && "function" != typeof val ? results.push(to[key] = val) :results.push(void 0); } catch (_error) { _error; } return results; }, Offline = {}, Offline.options = window.Offline ? window.Offline.options || {} :{}, defaultOptions = { checks:{ xhr:{ url:function() { return "/favicon.ico?_=" + new Date().getTime(); }, timeout:5e3, type:"HEAD" }, image:{ url:function() { return "/favicon.ico?_=" + new Date().getTime(); } }, active:"xhr" }, checkOnLoad:!1, interceptRequests:!0, reconnect:!0, deDupBody:!1 }, grab = function(obj, key) { var cur, i, j, len, part, parts; for (cur = obj, parts = key.split("."), i = j = 0, len = parts.length; j < len && (part = parts[i], "object" == typeof (cur = cur[part])); i = ++j) ; return i === parts.length - 1 ? cur :void 0; }, Offline.getOption = function(key) { var ref, val; return val = null != (ref = grab(Offline.options, key)) ? ref :grab(defaultOptions, key), "function" == typeof val ? val() :val; }, "function" == typeof window.addEventListener && window.addEventListener("online", function() { return setTimeout(Offline.confirmUp, 100); }, !1), "function" == typeof window.addEventListener && window.addEventListener("offline", function() { return Offline.confirmDown(); }, !1), Offline.state = "up", Offline.markUp = function() { if (Offline.trigger("confirmed-up"), "up" !== Offline.state) return Offline.state = "up", Offline.trigger("up"); }, Offline.markDown = function() { if (Offline.trigger("confirmed-down"), "down" !== Offline.state) return Offline.state = "down", Offline.trigger("down"); }, handlers = {}, Offline.on = function(event, handler, ctx) { var e, events, j, len, results; if (events = event.split(" "), events.length > 1) { for (results = [], j = 0, len = events.length; j < len; j++) e = events[j], results.push(Offline.on(e, handler, ctx)); return results; } return null == handlers[event] && (handlers[event] = []), handlers[event].push([ ctx, handler ]); }, Offline.off = function(event, handler) { var _handler, i, ref, results; if (null != handlers[event]) { if (handler) { for (i = 0, results = []; i < handlers[event].length; ) ref = handlers[event][i], ref[0], _handler = ref[1], _handler === handler ? results.push(handlers[event].splice(i, 1)) :results.push(i++); return results; } return handlers[event] = []; } }, Offline.trigger = function(event) { var ctx, handler, j, len, ref, ref1, results; if (null != handlers[event]) { for (ref = handlers[event].slice(0), results = [], j = 0, len = ref.length; j < len; j++) ref1 = ref[j], ctx = ref1[0], handler = ref1[1], results.push(handler.call(ctx)); return results; } }, checkXHR = function(xhr, onUp, onDown) { var _onerror, _onload, _onreadystatechange, _ontimeout, checkStatus; return checkStatus = function() { return xhr.status && xhr.status < 12e3 ? onUp() :onDown(); }, null === xhr.onprogress ? (_onerror = xhr.onerror, xhr.onerror = function() { return onDown(), "function" == typeof _onerror ? _onerror.apply(null, arguments) :void 0; }, _ontimeout = xhr.ontimeout, xhr.ontimeout = function() { return onDown(), "function" == typeof _ontimeout ? _ontimeout.apply(null, arguments) :void 0; }, _onload = xhr.onload, xhr.onload = function() { return checkStatus(), "function" == typeof _onload ? _onload.apply(null, arguments) :void 0; }) :(_onreadystatechange = xhr.onreadystatechange, xhr.onreadystatechange = function() { return 4 === xhr.readyState ? checkStatus() :0 === xhr.readyState && onDown(), "function" == typeof _onreadystatechange ? _onreadystatechange.apply(null, arguments) :void 0; }); }, Offline.checks = {}, Offline.checks.xhr = function() { var xhr; xhr = new XMLHttpRequest(), xhr.offline = !1, xhr.open(Offline.getOption("checks.xhr.type"), Offline.getOption("checks.xhr.url"), !0), null != xhr.timeout && (xhr.timeout = Offline.getOption("checks.xhr.timeout")), checkXHR(xhr, Offline.markUp, Offline.markDown); try { xhr.send(); } catch (_error) { _error, Offline.markDown(); } return xhr; }, Offline.checks.image = function() { var img; img = document.createElement("img"), img.onerror = Offline.markDown, img.onload = Offline.markUp, img.src = Offline.getOption("checks.image.url"); }, Offline.checks.down = Offline.markDown, Offline.checks.up = Offline.markUp, Offline.check = function() { return Offline.trigger("checking"), Offline.checks[Offline.getOption("checks.active")](); }, Offline.confirmUp = Offline.confirmDown = Offline.check, Offline.onXHR = function(cb) { var _XDomainRequest, _XMLHttpRequest, monitorXHR; if (monitorXHR = function(req, flags) { var _open; return _open = req.open, req.open = function(type, url, async, user, password) { return cb({ type:type, url:url, async:async, flags:flags, user:user, password:password, xhr:req }), _open.apply(req, arguments); }; }, _XMLHttpRequest = window.XMLHttpRequest, window.XMLHttpRequest = function(flags) { var _overrideMimeType, _setRequestHeader, req; return req = new _XMLHttpRequest(flags), monitorXHR(req, flags), _setRequestHeader = req.setRequestHeader, req.headers = {}, req.setRequestHeader = function(name, value) { return req.headers[name] = value, _setRequestHeader.call(req, name, value); }, _overrideMimeType = req.overrideMimeType, req.overrideMimeType = function(type) { return req.mimeType = type, _overrideMimeType.call(req, type); }, req; }, extendNative(window.XMLHttpRequest, _XMLHttpRequest), null != window.XDomainRequest) return _XDomainRequest = window.XDomainRequest, window.XDomainRequest = function() { var req; return req = new _XDomainRequest(), monitorXHR(req), req; }, extendNative(window.XDomainRequest, _XDomainRequest); }, init = function() { if (Offline.getOption("interceptRequests") && Offline.onXHR(function(arg) { var xhr; if (xhr = arg.xhr, !1 !== xhr.offline) return checkXHR(xhr, Offline.markUp, Offline.confirmDown); }), Offline.getOption("checkOnLoad")) return Offline.check(); }, setTimeout(init, 0), window.Offline = Offline; }).call(this), function() { var down, next, nope, rc, reset, retryIntv, tick, tryNow, up; if (!window.Offline) throw new Error("Offline Reconnect brought in without offline.js"); rc = Offline.reconnect = {}, retryIntv = null, reset = function() { var ref; return null != rc.state && "inactive" !== rc.state && Offline.trigger("reconnect:stopped"), rc.state = "inactive", rc.remaining = rc.delay = null != (ref = Offline.getOption("reconnect.initialDelay")) ? ref :3; }, next = function() { var delay, ref; return delay = null != (ref = Offline.getOption("reconnect.delay")) ? ref :Math.min(Math.ceil(1.5 * rc.delay), 3600), rc.remaining = rc.delay = delay; }, tick = function() { if ("connecting" !== rc.state) return rc.remaining -= 1, Offline.trigger("reconnect:tick"), 0 === rc.remaining ? tryNow() :void 0; }, tryNow = function() { if ("waiting" === rc.state) return Offline.trigger("reconnect:connecting"), rc.state = "connecting", Offline.check(); }, down = function() { if (Offline.getOption("reconnect")) return reset(), rc.state = "waiting", Offline.trigger("reconnect:started"), retryIntv = setInterval(tick, 1e3); }, up = function() { return null != retryIntv && clearInterval(retryIntv), reset(); }, nope = function() { if (Offline.getOption("reconnect")) return "connecting" === rc.state ? (Offline.trigger("reconnect:failure"), rc.state = "waiting", next()) :void 0; }, rc.tryNow = tryNow, reset(), Offline.on("down", down), Offline.on("confirmed-down", nope), Offline.on("up", up); }.call(this), function() { var clear, flush, held, holdRequest, makeRequest, waitingOnConfirm; if (!window.Offline) throw new Error("Requests module brought in without offline.js"); held = [], waitingOnConfirm = !1, holdRequest = function(req) { if (!1 !== Offline.getOption("requests")) return Offline.trigger("requests:capture"), "down" !== Offline.state && (waitingOnConfirm = !0), held.push(req); }, makeRequest = function(arg) { var body, name, password, ref, type, url, user, val, xhr; if (xhr = arg.xhr, url = arg.url, type = arg.type, user = arg.user, password = arg.password, body = arg.body, !1 !== Offline.getOption("requests")) { xhr.abort(), xhr.open(type, url, !0, user, password), ref = xhr.headers; for (name in ref) val = ref[name], xhr.setRequestHeader(name, val); return xhr.mimeType && xhr.overrideMimeType(xhr.mimeType), xhr.send(body); } }, clear = function() { return held = []; }, flush = function() { var body, i, key, len, request, requests, url; if (!1 !== Offline.getOption("requests")) { for (Offline.trigger("requests:flush"), requests = {}, i = 0, len = held.length; i < len; i++) request = held[i], url = request.url.replace(/(\?|&)_=[0-9]+/, function(match, chr) { return "?" === chr ? chr :""; }), Offline.getOption("deDupBody") ? (body = request.body, body = "[object Object]" === body.toString() ? JSON.stringify(body) :body.toString(), requests[request.type.toUpperCase() + " - " + url + " - " + body] = request) :requests[request.type.toUpperCase() + " - " + url] = request; for (key in requests) request = requests[key], makeRequest(request); return clear(); } }, setTimeout(function() { if (!1 !== Offline.getOption("requests")) return Offline.on("confirmed-up", function() { if (waitingOnConfirm) return waitingOnConfirm = !1, clear(); }), Offline.on("up", flush), Offline.on("down", function() { return waitingOnConfirm = !1; }), Offline.onXHR(function(request) { var _onreadystatechange, _send, async, hold, xhr; if (xhr = request.xhr, async = request.async, !1 !== xhr.offline && (hold = function() { return holdRequest(request); }, _send = xhr.send, xhr.send = function(body) { return request.body = body, _send.apply(xhr, arguments); }, async)) return null === xhr.onprogress ? (xhr.addEventListener("error", hold, !1), xhr.addEventListener("timeout", hold, !1)) :(_onreadystatechange = xhr.onreadystatechange, xhr.onreadystatechange = function() { return 0 === xhr.readyState ? hold() :4 === xhr.readyState && (0 === xhr.status || xhr.status >= 12e3) && hold(), "function" == typeof _onreadystatechange ? _onreadystatechange.apply(null, arguments) :void 0; }); }), Offline.requests = { flush:flush, clear:clear }; }, 0); }.call(this), function() { var base, i, len, ref, simulate, state; if (!Offline) throw new Error("Offline simulate brought in without offline.js"); for (ref = [ "up", "down" ], i = 0, len = ref.length; i < len; i++) { state = ref[i]; try { simulate = document.querySelector("script[data-simulate='" + state + "']") || ("undefined" != typeof localStorage && null !== localStorage ? localStorage.OFFLINE_SIMULATE :void 0) === state; } catch (_error) { _error, simulate = !1; } } simulate && (null == Offline.options && (Offline.options = {}), null == (base = Offline.options).checks && (base.checks = {}), Offline.options.checks.active = state); }.call(this), function() { var RETRY_TEMPLATE, TEMPLATE, _onreadystatechange, addClass, content, createFromHTML, el, flashClass, flashTimeouts, init, removeClass, render, roundTime; if (!window.Offline) throw new Error("Offline UI brought in without offline.js"); TEMPLATE = '
', RETRY_TEMPLATE = '', createFromHTML = function(html) { var el; return el = document.createElement("div"), el.innerHTML = html, el.children[0]; }, el = content = null, addClass = function(name) { return removeClass(name), el.className += " " + name; }, removeClass = function(name) { return el.className = el.className.replace(new RegExp("(^| )" + name.split(" ").join("|") + "( |$)", "gi"), " "); }, flashTimeouts = {}, flashClass = function(name, time) { return addClass(name), null != flashTimeouts[name] && clearTimeout(flashTimeouts[name]), flashTimeouts[name] = setTimeout(function() { return removeClass(name), delete flashTimeouts[name]; }, 1e3 * time); }, roundTime = function(sec) { var mult, unit, units, val; units = { day:86400, hour:3600, minute:60, second:1 }; for (unit in units) if (mult = units[unit], sec >= mult) return val = Math.floor(sec / mult), [ val, unit ]; return [ "now", "" ]; }, render = function() { var button, handler; return el = createFromHTML(TEMPLATE), document.body.appendChild(el), null != Offline.reconnect && Offline.getOption("reconnect") && (el.appendChild(createFromHTML(RETRY_TEMPLATE)), button = el.querySelector(".offline-ui-retry"), handler = function(e) { return e.preventDefault(), Offline.reconnect.tryNow(); }, null != button.addEventListener ? button.addEventListener("click", handler, !1) :button.attachEvent("click", handler)), addClass("offline-ui-" + Offline.state), content = el.querySelector(".offline-ui-content"); }, init = function() { return render(), Offline.on("up", function() { return removeClass("offline-ui-down"), addClass("offline-ui-up"), flashClass("offline-ui-up-2s", 2), flashClass("offline-ui-up-5s", 5); }), Offline.on("down", function() { return removeClass("offline-ui-up"), addClass("offline-ui-down"), flashClass("offline-ui-down-2s", 2), flashClass("offline-ui-down-5s", 5); }), Offline.on("reconnect:connecting", function() { return addClass("offline-ui-connecting"), removeClass("offline-ui-waiting"); }), Offline.on("reconnect:tick", function() { var ref, time, unit; return addClass("offline-ui-waiting"), removeClass("offline-ui-connecting"), ref = roundTime(Offline.reconnect.remaining), time = ref[0], unit = ref[1], content.setAttribute("data-retry-in-value", time), content.setAttribute("data-retry-in-unit", unit); }), Offline.on("reconnect:stopped", function() { return removeClass("offline-ui-connecting offline-ui-waiting"), content.setAttribute("data-retry-in-value", null), content.setAttribute("data-retry-in-unit", null); }), Offline.on("reconnect:failure", function() { return flashClass("offline-ui-reconnect-failed-2s", 2), flashClass("offline-ui-reconnect-failed-5s", 5); }), Offline.on("reconnect:success", function() { return flashClass("offline-ui-reconnect-succeeded-2s", 2), flashClass("offline-ui-reconnect-succeeded-5s", 5); }); }, "complete" === document.readyState ? init() :null != document.addEventListener ? document.addEventListener("DOMContentLoaded", init, !1) :(_onreadystatechange = document.onreadystatechange, document.onreadystatechange = function() { return "complete" === document.readyState && init(), "function" == typeof _onreadystatechange ? _onreadystatechange.apply(null, arguments) :void 0; }); }.call(this);