.'\n );\n }\n }\n el.staticStyle = JSON.stringify(parseStyleText(staticStyle));\n }\n\n var styleBinding = getBindingAttr(el, 'style', false /* getStatic */);\n if (styleBinding) {\n el.styleBinding = styleBinding;\n }\n}\n\nfunction genData$2 (el) {\n var data = '';\n if (el.staticStyle) {\n data += \"staticStyle:\" + (el.staticStyle) + \",\";\n }\n if (el.styleBinding) {\n data += \"style:(\" + (el.styleBinding) + \"),\";\n }\n return data\n}\n\nvar style$1 = {\n staticKeys: ['staticStyle'],\n transformNode: transformNode$1,\n genData: genData$2\n};\n\nvar modules$1 = [\n klass$1,\n style$1\n];\n\n/* */\n\nfunction text (el, dir) {\n if (dir.value) {\n addProp(el, 'textContent', (\"_s(\" + (dir.value) + \")\"));\n }\n}\n\n/* */\n\nfunction html (el, dir) {\n if (dir.value) {\n addProp(el, 'innerHTML', (\"_s(\" + (dir.value) + \")\"));\n }\n}\n\nvar directives$1 = {\n model: model,\n text: text,\n html: html\n};\n\n/* */\n\nvar baseOptions = {\n expectHTML: true,\n modules: modules$1,\n directives: directives$1,\n isPreTag: isPreTag,\n isUnaryTag: isUnaryTag,\n mustUseProp: mustUseProp,\n canBeLeftOpenTag: canBeLeftOpenTag,\n isReservedTag: isReservedTag,\n getTagNamespace: getTagNamespace,\n staticKeys: genStaticKeys(modules$1)\n};\n\nvar ref$1 = createCompiler(baseOptions);\nvar compileToFunctions = ref$1.compileToFunctions;\n\n/* */\n\nvar idToTemplate = cached(function (id) {\n var el = query(id);\n return el && el.innerHTML\n});\n\nvar mount = Vue$3.prototype.$mount;\nVue$3.prototype.$mount = function (\n el,\n hydrating\n) {\n el = el && query(el);\n\n /* istanbul ignore if */\n if (el === document.body || el === document.documentElement) {\n \"production\" !== 'production' && warn(\n \"Do not mount Vue to or - mount to normal elements instead.\"\n );\n return this\n }\n\n var options = this.$options;\n // resolve template/el and convert to render function\n if (!options.render) {\n var template = options.template;\n if (template) {\n if (typeof template === 'string') {\n if (template.charAt(0) === '#') {\n template = idToTemplate(template);\n /* istanbul ignore if */\n if (false) {\n warn(\n (\"Template element not found or is empty: \" + (options.template)),\n this\n );\n }\n }\n } else if (template.nodeType) {\n template = template.innerHTML;\n } else {\n if (false) {\n warn('invalid template option:' + template, this);\n }\n return this\n }\n } else if (el) {\n template = getOuterHTML(el);\n }\n if (template) {\n /* istanbul ignore if */\n if (false) {\n mark('compile');\n }\n\n var ref = compileToFunctions(template, {\n shouldDecodeNewlines: shouldDecodeNewlines,\n delimiters: options.delimiters\n }, this);\n var render = ref.render;\n var staticRenderFns = ref.staticRenderFns;\n options.render = render;\n options.staticRenderFns = staticRenderFns;\n\n /* istanbul ignore if */\n if (false) {\n mark('compile end');\n measure(((this._name) + \" compile\"), 'compile', 'compile end');\n }\n }\n }\n return mount.call(this, el, hydrating)\n};\n\n/**\n * Get outerHTML of elements, taking care\n * of SVG elements in IE as well.\n */\nfunction getOuterHTML (el) {\n if (el.outerHTML) {\n return el.outerHTML\n } else {\n var container = document.createElement('div');\n container.appendChild(el.cloneNode(true));\n return container.innerHTML\n }\n}\n\nVue$3.compile = compileToFunctions;\n\n/* harmony default export */ __webpack_exports__[\"a\"] = (Vue$3);\n\n/* WEBPACK VAR INJECTION */}.call(__webpack_exports__, __webpack_require__(9)))\n\n/***/ }),\n/* 4 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\nvar settle = __webpack_require__(21);\nvar buildURL = __webpack_require__(24);\nvar parseHeaders = __webpack_require__(30);\nvar isURLSameOrigin = __webpack_require__(28);\nvar createError = __webpack_require__(7);\nvar btoa = (typeof window !== 'undefined' && window.btoa && window.btoa.bind(window)) || __webpack_require__(23);\n\nmodule.exports = function xhrAdapter(config) {\n return new Promise(function dispatchXhrRequest(resolve, reject) {\n var requestData = config.data;\n var requestHeaders = config.headers;\n\n if (utils.isFormData(requestData)) {\n delete requestHeaders['Content-Type']; // Let the browser set it\n }\n\n var request = new XMLHttpRequest();\n var loadEvent = 'onreadystatechange';\n var xDomain = false;\n\n // For IE 8/9 CORS support\n // Only supports POST and GET calls and doesn't returns the response headers.\n // DON'T do this for testing b/c XMLHttpRequest is mocked, not XDomainRequest.\n if (\"production\" !== 'test' &&\n typeof window !== 'undefined' &&\n window.XDomainRequest && !('withCredentials' in request) &&\n !isURLSameOrigin(config.url)) {\n request = new window.XDomainRequest();\n loadEvent = 'onload';\n xDomain = true;\n request.onprogress = function handleProgress() {};\n request.ontimeout = function handleTimeout() {};\n }\n\n // HTTP basic authentication\n if (config.auth) {\n var username = config.auth.username || '';\n var password = config.auth.password || '';\n requestHeaders.Authorization = 'Basic ' + btoa(username + ':' + password);\n }\n\n request.open(config.method.toUpperCase(), buildURL(config.url, config.params, config.paramsSerializer), true);\n\n // Set the request timeout in MS\n request.timeout = config.timeout;\n\n // Listen for ready state\n request[loadEvent] = function handleLoad() {\n if (!request || (request.readyState !== 4 && !xDomain)) {\n return;\n }\n\n // The request errored out and we didn't get a response, this will be\n // handled by onerror instead\n // With one exception: request that using file: protocol, most browsers\n // will return status as 0 even though it's a successful request\n if (request.status === 0 && !(request.responseURL && request.responseURL.indexOf('file:') === 0)) {\n return;\n }\n\n // Prepare the response\n var responseHeaders = 'getAllResponseHeaders' in request ? parseHeaders(request.getAllResponseHeaders()) : null;\n var responseData = !config.responseType || config.responseType === 'text' ? request.responseText : request.response;\n var response = {\n data: responseData,\n // IE sends 1223 instead of 204 (https://github.com/mzabriskie/axios/issues/201)\n status: request.status === 1223 ? 204 : request.status,\n statusText: request.status === 1223 ? 'No Content' : request.statusText,\n headers: responseHeaders,\n config: config,\n request: request\n };\n\n settle(resolve, reject, response);\n\n // Clean up request\n request = null;\n };\n\n // Handle low level network errors\n request.onerror = function handleError() {\n // Real errors are hidden from us by the browser\n // onerror should only fire if it's a network error\n reject(createError('Network Error', config));\n\n // Clean up request\n request = null;\n };\n\n // Handle timeout\n request.ontimeout = function handleTimeout() {\n reject(createError('timeout of ' + config.timeout + 'ms exceeded', config, 'ECONNABORTED'));\n\n // Clean up request\n request = null;\n };\n\n // Add xsrf header\n // This is only done if running in a standard browser environment.\n // Specifically not if we're in a web worker, or react-native.\n if (utils.isStandardBrowserEnv()) {\n var cookies = __webpack_require__(26);\n\n // Add xsrf header\n var xsrfValue = (config.withCredentials || isURLSameOrigin(config.url)) && config.xsrfCookieName ?\n cookies.read(config.xsrfCookieName) :\n undefined;\n\n if (xsrfValue) {\n requestHeaders[config.xsrfHeaderName] = xsrfValue;\n }\n }\n\n // Add headers to the request\n if ('setRequestHeader' in request) {\n utils.forEach(requestHeaders, function setRequestHeader(val, key) {\n if (typeof requestData === 'undefined' && key.toLowerCase() === 'content-type') {\n // Remove Content-Type if data is undefined\n delete requestHeaders[key];\n } else {\n // Otherwise add header to the request\n request.setRequestHeader(key, val);\n }\n });\n }\n\n // Add withCredentials to request if needed\n if (config.withCredentials) {\n request.withCredentials = true;\n }\n\n // Add responseType to request if needed\n if (config.responseType) {\n try {\n request.responseType = config.responseType;\n } catch (e) {\n // Expected DOMException thrown by browsers not compatible XMLHttpRequest Level 2.\n // But, this can be suppressed for 'json' type as it can be parsed by default 'transformResponse' function.\n if (config.responseType !== 'json') {\n throw e;\n }\n }\n }\n\n // Handle progress if needed\n if (typeof config.onDownloadProgress === 'function') {\n request.addEventListener('progress', config.onDownloadProgress);\n }\n\n // Not all browsers support upload events\n if (typeof config.onUploadProgress === 'function' && request.upload) {\n request.upload.addEventListener('progress', config.onUploadProgress);\n }\n\n if (config.cancelToken) {\n // Handle cancellation\n config.cancelToken.promise.then(function onCanceled(cancel) {\n if (!request) {\n return;\n }\n\n request.abort();\n reject(cancel);\n // Clean up request\n request = null;\n });\n }\n\n if (requestData === undefined) {\n requestData = null;\n }\n\n // Send the request\n request.send(requestData);\n });\n};\n\n\n/***/ }),\n/* 5 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/**\n * A `Cancel` is an object that is thrown when an operation is canceled.\n *\n * @class\n * @param {string=} message The message.\n */\nfunction Cancel(message) {\n this.message = message;\n}\n\nCancel.prototype.toString = function toString() {\n return 'Cancel' + (this.message ? ': ' + this.message : '');\n};\n\nCancel.prototype.__CANCEL__ = true;\n\nmodule.exports = Cancel;\n\n\n/***/ }),\n/* 6 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nmodule.exports = function isCancel(value) {\n return !!(value && value.__CANCEL__);\n};\n\n\n/***/ }),\n/* 7 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar enhanceError = __webpack_require__(20);\n\n/**\n * Create an Error with the specified message, config, error code, and response.\n *\n * @param {string} message The error message.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n @ @param {Object} [response] The response.\n * @returns {Error} The created error.\n */\nmodule.exports = function createError(message, config, code, response) {\n var error = new Error(message);\n return enhanceError(error, config, code, response);\n};\n\n\n/***/ }),\n/* 8 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nmodule.exports = function bind(fn, thisArg) {\n return function wrap() {\n var args = new Array(arguments.length);\n for (var i = 0; i < args.length; i++) {\n args[i] = arguments[i];\n }\n return fn.apply(thisArg, args);\n };\n};\n\n\n/***/ }),\n/* 9 */\n/***/ (function(module, exports) {\n\nvar g;\r\n\r\n// This works in non-strict mode\r\ng = (function() {\r\n\treturn this;\r\n})();\r\n\r\ntry {\r\n\t// This works if eval is allowed (see CSP)\r\n\tg = g || Function(\"return this\")() || (1,eval)(\"this\");\r\n} catch(e) {\r\n\t// This works if the window reference is available\r\n\tif(typeof window === \"object\")\r\n\t\tg = window;\r\n}\r\n\r\n// g can still be undefined, but nothing to do about it...\r\n// We return undefined, instead of nothing here, so it's\r\n// easier to handle this case. if(!global) { ...}\r\n\r\nmodule.exports = g;\r\n\n\n/***/ }),\n/* 10 */,\n/* 11 */,\n/* 12 */\n/***/ (function(module, exports, __webpack_require__) {\n\n(function (global, factory) {\n true ? factory(__webpack_require__(43)) :\n typeof define === 'function' && define.amd ? define(['hammerjs'], factory) :\n (factory(global.Hammer));\n}(this, (function (Hammer) { 'use strict';\n\nHammer = 'default' in Hammer ? Hammer['default'] : Hammer;\n\nfunction assign(target) {\n var sources = [], len = arguments.length - 1;\n while ( len-- > 0 ) sources[ len ] = arguments[ len + 1 ];\n for (var i = 0; i < sources.length; i++) {\n var source = sources[i];\n var keys = Object.keys(source);\n for (var i$1 = 0; i$1 < keys.length; i$1++) {\n var key = keys[i$1];\n target[key] = source[key];\n }\n }\n return target\n}\nfunction createProp() {\n return {\n type: Object,\n default: function() { return {} }\n }\n}\nfunction capitalize (str) {\n return str.charAt(0).toUpperCase() + str.slice(1)\n}\nvar directions = ['up', 'down', 'left', 'right', 'horizontal', 'vertical', 'all'];\nfunction guardDirections (options) {\n var dir = options.direction;\n if (typeof dir === 'string') {\n var hammerDirection = 'DIRECTION_' + dir.toUpperCase();\n if (directions.indexOf(dir) > -1 && Hammer.hasOwnProperty(hammerDirection)) {\n options.direction = Hammer[hammerDirection];\n } else {\n console.warn('[vue-touch] invalid direction: ' + dir);\n }\n }\n return options\n}\nvar config = {\n};\nvar customEvents = {\n};\nvar gestures = [\n 'pan','panstart','panmove','panend','pancancel','panleft','panright','panup','pandown',\n 'pinch','pinchstart','pinchmove','pinchend','pinchcancel','pinchin','pinchout',\n 'press','pressup',\n 'rotate','rotatestart','rotatemove','rotateend','rotatecancel',\n 'swipe','swipeleft','swiperight','swipeup','swipedown',\n 'tap'\n];\nvar gestureMap = {\n pan: 'pan',\n panstart: 'pan',\n panmove: 'pan',\n panend: 'pan',\n pancancel: 'pan',\n panleft: 'pan',\n panright: 'pan',\n panup: 'pan',\n pandown: 'pan',\n pinch: 'pinch',\n pinchstart: 'pinch',\n pinchmove: 'pinch',\n pinchend: 'pinch',\n pinchcancel: 'pinch',\n pinchin: 'pinch',\n pinchout: 'pinch',\n press: 'press',\n pressup: 'press',\n rotate: 'rotate',\n rotatestart: 'rotate',\n rotatemove: 'rotate',\n rotateend: 'rotate',\n rotatecancel: 'rotate',\n swipe: 'swipe',\n swipeleft: 'swipe',\n swiperight: 'swipe',\n swipeup: 'swipe',\n swipedown: 'swipe',\n tap: 'tap'\n};\n\nvar Component = {\n props: {\n options: createProp(),\n tapOptions: createProp(),\n panOptions: createProp(),\n pinchOptions: createProp(),\n pressOptions: createProp(),\n rotateOptions: createProp(),\n swipeOptions: createProp(),\n tag: { type: String, default: 'div' },\n enabled: {\n default: true,\n type: [Boolean, Object],\n }\n },\n mounted: function mounted() {\n if (!this.$isServer) {\n this.hammer = new Hammer.Manager(this.$el, this.options);\n this.recognizers = {};\n this.setupBuiltinRecognizers();\n this.setupCustomRecognizers();\n this.updateEnabled(this.enabled);\n }\n },\n destroyed: function destroyed() {\n if (!this.$isServer) {\n this.hammer.destroy();\n }\n },\n watch: {\n enabled: {\n deep: true,\n handler: function handler() {\n var args = [], len = arguments.length;\n while ( len-- ) args[ len ] = arguments[ len ];\n (ref = this).updateEnabled.apply(ref, args);\n var ref;\n }\n }\n },\n methods: {\n setupBuiltinRecognizers: function setupBuiltinRecognizers() {\n var this$1 = this;\n for (var i = 0; i < gestures.length; i++) {\n var gesture = gestures[i];\n if (this$1._events[gesture]) {\n var mainGesture = gestureMap[gesture];\n var options = assign({}, (config[mainGesture] || {}), this$1[(mainGesture + \"Options\")]);\n this$1.addRecognizer(mainGesture, options);\n this$1.addEvent(gesture);\n }\n }\n },\n setupCustomRecognizers: function setupCustomRecognizers() {\n var this$1 = this;\n var gestures$$1 = Object.keys(customEvents);\n for (var i = 0; i < gestures$$1.length; i++) {\n var gesture = gestures$$1[i];\n if (this$1._events[gesture]) {\n var opts = customEvents[gesture];\n var localCustomOpts = this$1[(gesture + \"Options\")] || {};\n var options = assign({}, opts, localCustomOpts);\n this$1.addRecognizer(gesture, options, {mainGesture: options.type});\n this$1.addEvent(gesture);\n }\n }\n },\n addRecognizer: function addRecognizer(gesture, options, ref) {\n if ( ref === void 0 ) ref = {};\n var mainGesture = ref.mainGesture;\n if (!this.recognizers[gesture]) {\n var recognizer = new Hammer[capitalize(mainGesture || gesture)](guardDirections(options));\n this.recognizers[gesture] = recognizer;\n this.hammer.add(recognizer);\n recognizer.recognizeWith(this.hammer.recognizers);\n }\n },\n addEvent: function addEvent(gesture) {\n var this$1 = this;\n this.hammer.on(gesture, function (e) { return this$1.$emit(gesture, e); });\n },\n updateEnabled: function updateEnabled(newVal, oldVal) {\n var this$1 = this;\n if (newVal === true) {\n this.enableAll();\n } else if (newVal === false) {\n this.disableAll();\n } else if (typeof newVal === 'object') {\n var keys = Object.keys(newVal);\n for (var i = 0; i < keys.length; i++) {\n var event = keys[i];\n if (this$1.recognizers[event]) {\n newVal[event]\n ? this$1.enable(event)\n : this$1.disable(event);\n }\n }\n }\n },\n enable: function enable(r) {\n var recognizer = this.recognizers[r];\n if (!recognizer.options.enable) {\n recognizer.set({ enable: true });\n }\n },\n disable: function disable(r) {\n var recognizer = this.recognizers[r];\n if (recognizer.options.enable) {\n recognizer.set({ enable: false });\n }\n },\n toggle: function toggle(r) {\n var recognizer = this.recognizers[r];\n if (recognizer) {\n recognizer.options.enable\n ? this.disable(r)\n : this.enable(r);\n }\n },\n enableAll: function enableAll(r) {\n this.toggleAll({ enable: true });\n },\n disableAll: function disableAll(r) {\n this.toggleAll({ enable: false });\n },\n toggleAll: function toggleAll(ref) {\n var this$1 = this;\n var enable = ref.enable;\n var keys = Object.keys(this.recognizers);\n for (var i = 0; i < keys.length; i++) {\n var r = this$1.recognizers[keys[i]];\n if (r.options.enable !== enable) {\n r.set({ enable: enable });\n }\n }\n },\n isEnabled: function isEnabled(r) {\n return this.recognizers[r] && this.recognizers[r].options.enable\n }\n },\n render: function render(h) {\n return h(this.tag, {}, this.$slots.default)\n }\n};\n\nvar installed = false;\nvar vueTouch = { config: config, customEvents: customEvents };\nvueTouch.install = function install(Vue, opts) {\n if ( opts === void 0 ) opts = {};\n var name = opts.name || 'v-touch';\n Vue.component(name, assign(Component, { name: name }));\n installed = true;\n}.bind(vueTouch);\nvueTouch.registerCustomEvent = function registerCustomEvent(event, options) {\n if ( options === void 0 ) options = {};\n if (installed) {\n console.warn((\"\\n [vue-touch]: Custom Event '\" + event + \"' couldn't be added to vue-touch.\\n Custom Events have to be registered before installing the plugin.\\n \"));\n return\n }\n options.event = event;\n customEvents[event] = options;\n Component.props[(event + \"Options\")] = {\n type: Object,\n default: function default$1() { return {} }\n };\n}.bind(vueTouch);\nvueTouch.component = Component;\nif (true) {\n module.exports = vueTouch;\n} else if (typeof define == \"function\" && define.amd) {\n define([], function(){ return vueTouch });\n} else if (typeof window !== 'undefined' && window.Vue) {\n window.VueTouch = vueTouch;\n Vue.use(vueTouch);\n}\n\n})));\n//# sourceMappingURL=vue-touch.js.map\n\n\n/***/ }),\n/* 13 */,\n/* 14 */\n/***/ (function(module, exports, __webpack_require__) {\n\nmodule.exports = __webpack_require__(15);\n\n/***/ }),\n/* 15 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\nvar bind = __webpack_require__(8);\nvar Axios = __webpack_require__(17);\nvar defaults = __webpack_require__(2);\n\n/**\n * Create an instance of Axios\n *\n * @param {Object} defaultConfig The default config for the instance\n * @return {Axios} A new instance of Axios\n */\nfunction createInstance(defaultConfig) {\n var context = new Axios(defaultConfig);\n var instance = bind(Axios.prototype.request, context);\n\n // Copy axios.prototype to instance\n utils.extend(instance, Axios.prototype, context);\n\n // Copy context to instance\n utils.extend(instance, context);\n\n return instance;\n}\n\n// Create the default instance to be exported\nvar axios = createInstance(defaults);\n\n// Expose Axios class to allow class inheritance\naxios.Axios = Axios;\n\n// Factory for creating new instances\naxios.create = function create(instanceConfig) {\n return createInstance(utils.merge(defaults, instanceConfig));\n};\n\n// Expose Cancel & CancelToken\naxios.Cancel = __webpack_require__(5);\naxios.CancelToken = __webpack_require__(16);\naxios.isCancel = __webpack_require__(6);\n\n// Expose all/spread\naxios.all = function all(promises) {\n return Promise.all(promises);\n};\naxios.spread = __webpack_require__(31);\n\nmodule.exports = axios;\n\n// Allow use of default import syntax in TypeScript\nmodule.exports.default = axios;\n\n\n/***/ }),\n/* 16 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar Cancel = __webpack_require__(5);\n\n/**\n * A `CancelToken` is an object that can be used to request cancellation of an operation.\n *\n * @class\n * @param {Function} executor The executor function.\n */\nfunction CancelToken(executor) {\n if (typeof executor !== 'function') {\n throw new TypeError('executor must be a function.');\n }\n\n var resolvePromise;\n this.promise = new Promise(function promiseExecutor(resolve) {\n resolvePromise = resolve;\n });\n\n var token = this;\n executor(function cancel(message) {\n if (token.reason) {\n // Cancellation has already been requested\n return;\n }\n\n token.reason = new Cancel(message);\n resolvePromise(token.reason);\n });\n}\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nCancelToken.prototype.throwIfRequested = function throwIfRequested() {\n if (this.reason) {\n throw this.reason;\n }\n};\n\n/**\n * Returns an object that contains a new `CancelToken` and a function that, when called,\n * cancels the `CancelToken`.\n */\nCancelToken.source = function source() {\n var cancel;\n var token = new CancelToken(function executor(c) {\n cancel = c;\n });\n return {\n token: token,\n cancel: cancel\n };\n};\n\nmodule.exports = CancelToken;\n\n\n/***/ }),\n/* 17 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar defaults = __webpack_require__(2);\nvar utils = __webpack_require__(0);\nvar InterceptorManager = __webpack_require__(18);\nvar dispatchRequest = __webpack_require__(19);\nvar isAbsoluteURL = __webpack_require__(27);\nvar combineURLs = __webpack_require__(25);\n\n/**\n * Create a new instance of Axios\n *\n * @param {Object} instanceConfig The default config for the instance\n */\nfunction Axios(instanceConfig) {\n this.defaults = instanceConfig;\n this.interceptors = {\n request: new InterceptorManager(),\n response: new InterceptorManager()\n };\n}\n\n/**\n * Dispatch a request\n *\n * @param {Object} config The config specific for this request (merged with this.defaults)\n */\nAxios.prototype.request = function request(config) {\n /*eslint no-param-reassign:0*/\n // Allow for axios('example/url'[, config]) a la fetch API\n if (typeof config === 'string') {\n config = utils.merge({\n url: arguments[0]\n }, arguments[1]);\n }\n\n config = utils.merge(defaults, this.defaults, { method: 'get' }, config);\n\n // Support baseURL config\n if (config.baseURL && !isAbsoluteURL(config.url)) {\n config.url = combineURLs(config.baseURL, config.url);\n }\n\n // Hook up interceptors middleware\n var chain = [dispatchRequest, undefined];\n var promise = Promise.resolve(config);\n\n this.interceptors.request.forEach(function unshiftRequestInterceptors(interceptor) {\n chain.unshift(interceptor.fulfilled, interceptor.rejected);\n });\n\n this.interceptors.response.forEach(function pushResponseInterceptors(interceptor) {\n chain.push(interceptor.fulfilled, interceptor.rejected);\n });\n\n while (chain.length) {\n promise = promise.then(chain.shift(), chain.shift());\n }\n\n return promise;\n};\n\n// Provide aliases for supported request methods\nutils.forEach(['delete', 'get', 'head', 'options'], function forEachMethodNoData(method) {\n /*eslint func-names:0*/\n Axios.prototype[method] = function(url, config) {\n return this.request(utils.merge(config || {}, {\n method: method,\n url: url\n }));\n };\n});\n\nutils.forEach(['post', 'put', 'patch'], function forEachMethodWithData(method) {\n /*eslint func-names:0*/\n Axios.prototype[method] = function(url, data, config) {\n return this.request(utils.merge(config || {}, {\n method: method,\n url: url,\n data: data\n }));\n };\n});\n\nmodule.exports = Axios;\n\n\n/***/ }),\n/* 18 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\nfunction InterceptorManager() {\n this.handlers = [];\n}\n\n/**\n * Add a new interceptor to the stack\n *\n * @param {Function} fulfilled The function to handle `then` for a `Promise`\n * @param {Function} rejected The function to handle `reject` for a `Promise`\n *\n * @return {Number} An ID used to remove interceptor later\n */\nInterceptorManager.prototype.use = function use(fulfilled, rejected) {\n this.handlers.push({\n fulfilled: fulfilled,\n rejected: rejected\n });\n return this.handlers.length - 1;\n};\n\n/**\n * Remove an interceptor from the stack\n *\n * @param {Number} id The ID that was returned by `use`\n */\nInterceptorManager.prototype.eject = function eject(id) {\n if (this.handlers[id]) {\n this.handlers[id] = null;\n }\n};\n\n/**\n * Iterate over all the registered interceptors\n *\n * This method is particularly useful for skipping over any\n * interceptors that may have become `null` calling `eject`.\n *\n * @param {Function} fn The function to call for each interceptor\n */\nInterceptorManager.prototype.forEach = function forEach(fn) {\n utils.forEach(this.handlers, function forEachHandler(h) {\n if (h !== null) {\n fn(h);\n }\n });\n};\n\nmodule.exports = InterceptorManager;\n\n\n/***/ }),\n/* 19 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\nvar transformData = __webpack_require__(22);\nvar isCancel = __webpack_require__(6);\nvar defaults = __webpack_require__(2);\n\n/**\n * Throws a `Cancel` if cancellation has been requested.\n */\nfunction throwIfCancellationRequested(config) {\n if (config.cancelToken) {\n config.cancelToken.throwIfRequested();\n }\n}\n\n/**\n * Dispatch a request to the server using the configured adapter.\n *\n * @param {object} config The config that is to be used for the request\n * @returns {Promise} The Promise to be fulfilled\n */\nmodule.exports = function dispatchRequest(config) {\n throwIfCancellationRequested(config);\n\n // Ensure headers exist\n config.headers = config.headers || {};\n\n // Transform request data\n config.data = transformData(\n config.data,\n config.headers,\n config.transformRequest\n );\n\n // Flatten headers\n config.headers = utils.merge(\n config.headers.common || {},\n config.headers[config.method] || {},\n config.headers || {}\n );\n\n utils.forEach(\n ['delete', 'get', 'head', 'post', 'put', 'patch', 'common'],\n function cleanHeaderConfig(method) {\n delete config.headers[method];\n }\n );\n\n var adapter = config.adapter || defaults.adapter;\n\n return adapter(config).then(function onAdapterResolution(response) {\n throwIfCancellationRequested(config);\n\n // Transform response data\n response.data = transformData(\n response.data,\n response.headers,\n config.transformResponse\n );\n\n return response;\n }, function onAdapterRejection(reason) {\n if (!isCancel(reason)) {\n throwIfCancellationRequested(config);\n\n // Transform response data\n if (reason && reason.response) {\n reason.response.data = transformData(\n reason.response.data,\n reason.response.headers,\n config.transformResponse\n );\n }\n }\n\n return Promise.reject(reason);\n });\n};\n\n\n/***/ }),\n/* 20 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/**\n * Update an Error with the specified config, error code, and response.\n *\n * @param {Error} error The error to update.\n * @param {Object} config The config.\n * @param {string} [code] The error code (for example, 'ECONNABORTED').\n @ @param {Object} [response] The response.\n * @returns {Error} The error.\n */\nmodule.exports = function enhanceError(error, config, code, response) {\n error.config = config;\n if (code) {\n error.code = code;\n }\n error.response = response;\n return error;\n};\n\n\n/***/ }),\n/* 21 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar createError = __webpack_require__(7);\n\n/**\n * Resolve or reject a Promise based on response status.\n *\n * @param {Function} resolve A function that resolves the promise.\n * @param {Function} reject A function that rejects the promise.\n * @param {object} response The response.\n */\nmodule.exports = function settle(resolve, reject, response) {\n var validateStatus = response.config.validateStatus;\n // Note: status is not exposed by XDomainRequest\n if (!response.status || !validateStatus || validateStatus(response.status)) {\n resolve(response);\n } else {\n reject(createError(\n 'Request failed with status code ' + response.status,\n response.config,\n null,\n response\n ));\n }\n};\n\n\n/***/ }),\n/* 22 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\n/**\n * Transform the data for a request or a response\n *\n * @param {Object|String} data The data to be transformed\n * @param {Array} headers The headers for the request or response\n * @param {Array|Function} fns A single function or Array of functions\n * @returns {*} The resulting transformed data\n */\nmodule.exports = function transformData(data, headers, fns) {\n /*eslint no-param-reassign:0*/\n utils.forEach(fns, function transform(fn) {\n data = fn(data, headers);\n });\n\n return data;\n};\n\n\n/***/ }),\n/* 23 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n// btoa polyfill for IE<10 courtesy https://github.com/davidchambers/Base64.js\n\nvar chars = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=';\n\nfunction E() {\n this.message = 'String contains an invalid character';\n}\nE.prototype = new Error;\nE.prototype.code = 5;\nE.prototype.name = 'InvalidCharacterError';\n\nfunction btoa(input) {\n var str = String(input);\n var output = '';\n for (\n // initialize result and counter\n var block, charCode, idx = 0, map = chars;\n // if the next str index does not exist:\n // change the mapping table to \"=\"\n // check if d has no fractional digits\n str.charAt(idx | 0) || (map = '=', idx % 1);\n // \"8 - idx % 1 * 8\" generates the sequence 2, 4, 6, 8\n output += map.charAt(63 & block >> 8 - idx % 1 * 8)\n ) {\n charCode = str.charCodeAt(idx += 3 / 4);\n if (charCode > 0xFF) {\n throw new E();\n }\n block = block << 8 | charCode;\n }\n return output;\n}\n\nmodule.exports = btoa;\n\n\n/***/ }),\n/* 24 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\nfunction encode(val) {\n return encodeURIComponent(val).\n replace(/%40/gi, '@').\n replace(/%3A/gi, ':').\n replace(/%24/g, '$').\n replace(/%2C/gi, ',').\n replace(/%20/g, '+').\n replace(/%5B/gi, '[').\n replace(/%5D/gi, ']');\n}\n\n/**\n * Build a URL by appending params to the end\n *\n * @param {string} url The base of the url (e.g., http://www.google.com)\n * @param {object} [params] The params to be appended\n * @returns {string} The formatted url\n */\nmodule.exports = function buildURL(url, params, paramsSerializer) {\n /*eslint no-param-reassign:0*/\n if (!params) {\n return url;\n }\n\n var serializedParams;\n if (paramsSerializer) {\n serializedParams = paramsSerializer(params);\n } else if (utils.isURLSearchParams(params)) {\n serializedParams = params.toString();\n } else {\n var parts = [];\n\n utils.forEach(params, function serialize(val, key) {\n if (val === null || typeof val === 'undefined') {\n return;\n }\n\n if (utils.isArray(val)) {\n key = key + '[]';\n }\n\n if (!utils.isArray(val)) {\n val = [val];\n }\n\n utils.forEach(val, function parseValue(v) {\n if (utils.isDate(v)) {\n v = v.toISOString();\n } else if (utils.isObject(v)) {\n v = JSON.stringify(v);\n }\n parts.push(encode(key) + '=' + encode(v));\n });\n });\n\n serializedParams = parts.join('&');\n }\n\n if (serializedParams) {\n url += (url.indexOf('?') === -1 ? '?' : '&') + serializedParams;\n }\n\n return url;\n};\n\n\n/***/ }),\n/* 25 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/**\n * Creates a new URL by combining the specified URLs\n *\n * @param {string} baseURL The base URL\n * @param {string} relativeURL The relative URL\n * @returns {string} The combined URL\n */\nmodule.exports = function combineURLs(baseURL, relativeURL) {\n return relativeURL\n ? baseURL.replace(/\\/+$/, '') + '/' + relativeURL.replace(/^\\/+/, '')\n : baseURL;\n};\n\n\n/***/ }),\n/* 26 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\nmodule.exports = (\n utils.isStandardBrowserEnv() ?\n\n // Standard browser envs support document.cookie\n (function standardBrowserEnv() {\n return {\n write: function write(name, value, expires, path, domain, secure) {\n var cookie = [];\n cookie.push(name + '=' + encodeURIComponent(value));\n\n if (utils.isNumber(expires)) {\n cookie.push('expires=' + new Date(expires).toGMTString());\n }\n\n if (utils.isString(path)) {\n cookie.push('path=' + path);\n }\n\n if (utils.isString(domain)) {\n cookie.push('domain=' + domain);\n }\n\n if (secure === true) {\n cookie.push('secure');\n }\n\n document.cookie = cookie.join('; ');\n },\n\n read: function read(name) {\n var match = document.cookie.match(new RegExp('(^|;\\\\s*)(' + name + ')=([^;]*)'));\n return (match ? decodeURIComponent(match[3]) : null);\n },\n\n remove: function remove(name) {\n this.write(name, '', Date.now() - 86400000);\n }\n };\n })() :\n\n // Non standard browser env (web workers, react-native) lack needed support.\n (function nonStandardBrowserEnv() {\n return {\n write: function write() {},\n read: function read() { return null; },\n remove: function remove() {}\n };\n })()\n);\n\n\n/***/ }),\n/* 27 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/**\n * Determines whether the specified URL is absolute\n *\n * @param {string} url The URL to test\n * @returns {boolean} True if the specified URL is absolute, otherwise false\n */\nmodule.exports = function isAbsoluteURL(url) {\n // A URL is considered absolute if it begins with \"
://\" or \"//\" (protocol-relative URL).\n // RFC 3986 defines scheme name as a sequence of characters beginning with a letter and followed\n // by any combination of letters, digits, plus, period, or hyphen.\n return /^([a-z][a-z\\d\\+\\-\\.]*:)?\\/\\//i.test(url);\n};\n\n\n/***/ }),\n/* 28 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\nmodule.exports = (\n utils.isStandardBrowserEnv() ?\n\n // Standard browser envs have full support of the APIs needed to test\n // whether the request URL is of the same origin as current location.\n (function standardBrowserEnv() {\n var msie = /(msie|trident)/i.test(navigator.userAgent);\n var urlParsingNode = document.createElement('a');\n var originURL;\n\n /**\n * Parse a URL to discover it's components\n *\n * @param {String} url The URL to be parsed\n * @returns {Object}\n */\n function resolveURL(url) {\n var href = url;\n\n if (msie) {\n // IE needs attribute set twice to normalize properties\n urlParsingNode.setAttribute('href', href);\n href = urlParsingNode.href;\n }\n\n urlParsingNode.setAttribute('href', href);\n\n // urlParsingNode provides the UrlUtils interface - http://url.spec.whatwg.org/#urlutils\n return {\n href: urlParsingNode.href,\n protocol: urlParsingNode.protocol ? urlParsingNode.protocol.replace(/:$/, '') : '',\n host: urlParsingNode.host,\n search: urlParsingNode.search ? urlParsingNode.search.replace(/^\\?/, '') : '',\n hash: urlParsingNode.hash ? urlParsingNode.hash.replace(/^#/, '') : '',\n hostname: urlParsingNode.hostname,\n port: urlParsingNode.port,\n pathname: (urlParsingNode.pathname.charAt(0) === '/') ?\n urlParsingNode.pathname :\n '/' + urlParsingNode.pathname\n };\n }\n\n originURL = resolveURL(window.location.href);\n\n /**\n * Determine if a URL shares the same origin as the current location\n *\n * @param {String} requestURL The URL to test\n * @returns {boolean} True if URL shares the same origin, otherwise false\n */\n return function isURLSameOrigin(requestURL) {\n var parsed = (utils.isString(requestURL)) ? resolveURL(requestURL) : requestURL;\n return (parsed.protocol === originURL.protocol &&\n parsed.host === originURL.host);\n };\n })() :\n\n // Non standard browser envs (web workers, react-native) lack needed support.\n (function nonStandardBrowserEnv() {\n return function isURLSameOrigin() {\n return true;\n };\n })()\n);\n\n\n/***/ }),\n/* 29 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\nmodule.exports = function normalizeHeaderName(headers, normalizedName) {\n utils.forEach(headers, function processHeader(value, name) {\n if (name !== normalizedName && name.toUpperCase() === normalizedName.toUpperCase()) {\n headers[normalizedName] = value;\n delete headers[name];\n }\n });\n};\n\n\n/***/ }),\n/* 30 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nvar utils = __webpack_require__(0);\n\n/**\n * Parse headers into an object\n *\n * ```\n * Date: Wed, 27 Aug 2014 08:58:49 GMT\n * Content-Type: application/json\n * Connection: keep-alive\n * Transfer-Encoding: chunked\n * ```\n *\n * @param {String} headers Headers needing to be parsed\n * @returns {Object} Headers parsed into an object\n */\nmodule.exports = function parseHeaders(headers) {\n var parsed = {};\n var key;\n var val;\n var i;\n\n if (!headers) { return parsed; }\n\n utils.forEach(headers.split('\\n'), function parser(line) {\n i = line.indexOf(':');\n key = utils.trim(line.substr(0, i)).toLowerCase();\n val = utils.trim(line.substr(i + 1));\n\n if (key) {\n parsed[key] = parsed[key] ? parsed[key] + ', ' + val : val;\n }\n });\n\n return parsed;\n};\n\n\n/***/ }),\n/* 31 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\n/**\n * Syntactic sugar for invoking a function and expanding an array for arguments.\n *\n * Common use case would be to use `Function.prototype.apply`.\n *\n * ```js\n * function f(x, y, z) {}\n * var args = [1, 2, 3];\n * f.apply(null, args);\n * ```\n *\n * With `spread` this example can be re-written.\n *\n * ```js\n * spread(function(x, y, z) {})([1, 2, 3]);\n * ```\n *\n * @param {Function} callback\n * @returns {Function}\n */\nmodule.exports = function spread(callback) {\n return function wrap(arr) {\n return callback.apply(null, arr);\n };\n};\n\n\n/***/ }),\n/* 32 */,\n/* 33 */,\n/* 34 */,\n/* 35 */,\n/* 36 */,\n/* 37 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n\n\nexports.byteLength = byteLength\nexports.toByteArray = toByteArray\nexports.fromByteArray = fromByteArray\n\nvar lookup = []\nvar revLookup = []\nvar Arr = typeof Uint8Array !== 'undefined' ? Uint8Array : Array\n\nvar code = 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/'\nfor (var i = 0, len = code.length; i < len; ++i) {\n lookup[i] = code[i]\n revLookup[code.charCodeAt(i)] = i\n}\n\nrevLookup['-'.charCodeAt(0)] = 62\nrevLookup['_'.charCodeAt(0)] = 63\n\nfunction placeHoldersCount (b64) {\n var len = b64.length\n if (len % 4 > 0) {\n throw new Error('Invalid string. Length must be a multiple of 4')\n }\n\n // the number of equal signs (place holders)\n // if there are two placeholders, than the two characters before it\n // represent one byte\n // if there is only one, then the three characters before it represent 2 bytes\n // this is just a cheap hack to not do indexOf twice\n return b64[len - 2] === '=' ? 2 : b64[len - 1] === '=' ? 1 : 0\n}\n\nfunction byteLength (b64) {\n // base64 is 4/3 + up to two characters of the original data\n return b64.length * 3 / 4 - placeHoldersCount(b64)\n}\n\nfunction toByteArray (b64) {\n var i, j, l, tmp, placeHolders, arr\n var len = b64.length\n placeHolders = placeHoldersCount(b64)\n\n arr = new Arr(len * 3 / 4 - placeHolders)\n\n // if there are placeholders, only get up to the last complete 4 chars\n l = placeHolders > 0 ? len - 4 : len\n\n var L = 0\n\n for (i = 0, j = 0; i < l; i += 4, j += 3) {\n tmp = (revLookup[b64.charCodeAt(i)] << 18) | (revLookup[b64.charCodeAt(i + 1)] << 12) | (revLookup[b64.charCodeAt(i + 2)] << 6) | revLookup[b64.charCodeAt(i + 3)]\n arr[L++] = (tmp >> 16) & 0xFF\n arr[L++] = (tmp >> 8) & 0xFF\n arr[L++] = tmp & 0xFF\n }\n\n if (placeHolders === 2) {\n tmp = (revLookup[b64.charCodeAt(i)] << 2) | (revLookup[b64.charCodeAt(i + 1)] >> 4)\n arr[L++] = tmp & 0xFF\n } else if (placeHolders === 1) {\n tmp = (revLookup[b64.charCodeAt(i)] << 10) | (revLookup[b64.charCodeAt(i + 1)] << 4) | (revLookup[b64.charCodeAt(i + 2)] >> 2)\n arr[L++] = (tmp >> 8) & 0xFF\n arr[L++] = tmp & 0xFF\n }\n\n return arr\n}\n\nfunction tripletToBase64 (num) {\n return lookup[num >> 18 & 0x3F] + lookup[num >> 12 & 0x3F] + lookup[num >> 6 & 0x3F] + lookup[num & 0x3F]\n}\n\nfunction encodeChunk (uint8, start, end) {\n var tmp\n var output = []\n for (var i = start; i < end; i += 3) {\n tmp = (uint8[i] << 16) + (uint8[i + 1] << 8) + (uint8[i + 2])\n output.push(tripletToBase64(tmp))\n }\n return output.join('')\n}\n\nfunction fromByteArray (uint8) {\n var tmp\n var len = uint8.length\n var extraBytes = len % 3 // if we have 1 byte left, pad 2 bytes\n var output = ''\n var parts = []\n var maxChunkLength = 16383 // must be multiple of 3\n\n // go through the array every three bytes, we'll deal with trailing stuff later\n for (var i = 0, len2 = len - extraBytes; i < len2; i += maxChunkLength) {\n parts.push(encodeChunk(uint8, i, (i + maxChunkLength) > len2 ? len2 : (i + maxChunkLength)))\n }\n\n // pad the end with zeros, but make sure to not forget the extra bytes\n if (extraBytes === 1) {\n tmp = uint8[len - 1]\n output += lookup[tmp >> 2]\n output += lookup[(tmp << 4) & 0x3F]\n output += '=='\n } else if (extraBytes === 2) {\n tmp = (uint8[len - 2] << 8) + (uint8[len - 1])\n output += lookup[tmp >> 10]\n output += lookup[(tmp >> 4) & 0x3F]\n output += lookup[(tmp << 2) & 0x3F]\n output += '='\n }\n\n parts.push(output)\n\n return parts.join('')\n}\n\n\n/***/ }),\n/* 38 */\n/***/ (function(module, exports, __webpack_require__) {\n\n\"use strict\";\n/* WEBPACK VAR INJECTION */(function(global) {/*!\n * The buffer module from node.js, for the browser.\n *\n * @author Feross Aboukhadijeh \n * @license MIT\n */\n/* eslint-disable no-proto */\n\n\n\nvar base64 = __webpack_require__(37)\nvar ieee754 = __webpack_require__(44)\nvar isArray = __webpack_require__(45)\n\nexports.Buffer = Buffer\nexports.SlowBuffer = SlowBuffer\nexports.INSPECT_MAX_BYTES = 50\n\n/**\n * If `Buffer.TYPED_ARRAY_SUPPORT`:\n * === true Use Uint8Array implementation (fastest)\n * === false Use Object implementation (most compatible, even IE6)\n *\n * Browsers that support typed arrays are IE 10+, Firefox 4+, Chrome 7+, Safari 5.1+,\n * Opera 11.6+, iOS 4.2+.\n *\n * Due to various browser bugs, sometimes the Object implementation will be used even\n * when the browser supports typed arrays.\n *\n * Note:\n *\n * - Firefox 4-29 lacks support for adding new properties to `Uint8Array` instances,\n * See: https://bugzilla.mozilla.org/show_bug.cgi?id=695438.\n *\n * - Chrome 9-10 is missing the `TypedArray.prototype.subarray` function.\n *\n * - IE10 has a broken `TypedArray.prototype.subarray` function which returns arrays of\n * incorrect length in some situations.\n\n * We detect these buggy browsers and set `Buffer.TYPED_ARRAY_SUPPORT` to `false` so they\n * get the Object implementation, which is slower but behaves correctly.\n */\nBuffer.TYPED_ARRAY_SUPPORT = global.TYPED_ARRAY_SUPPORT !== undefined\n ? global.TYPED_ARRAY_SUPPORT\n : typedArraySupport()\n\n/*\n * Export kMaxLength after typed array support is determined.\n */\nexports.kMaxLength = kMaxLength()\n\nfunction typedArraySupport () {\n try {\n var arr = new Uint8Array(1)\n arr.__proto__ = {__proto__: Uint8Array.prototype, foo: function () { return 42 }}\n return arr.foo() === 42 && // typed array instances can be augmented\n typeof arr.subarray === 'function' && // chrome 9-10 lack `subarray`\n arr.subarray(1, 1).byteLength === 0 // ie10 has broken `subarray`\n } catch (e) {\n return false\n }\n}\n\nfunction kMaxLength () {\n return Buffer.TYPED_ARRAY_SUPPORT\n ? 0x7fffffff\n : 0x3fffffff\n}\n\nfunction createBuffer (that, length) {\n if (kMaxLength() < length) {\n throw new RangeError('Invalid typed array length')\n }\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n // Return an augmented `Uint8Array` instance, for best performance\n that = new Uint8Array(length)\n that.__proto__ = Buffer.prototype\n } else {\n // Fallback: Return an object instance of the Buffer class\n if (that === null) {\n that = new Buffer(length)\n }\n that.length = length\n }\n\n return that\n}\n\n/**\n * The Buffer constructor returns instances of `Uint8Array` that have their\n * prototype changed to `Buffer.prototype`. Furthermore, `Buffer` is a subclass of\n * `Uint8Array`, so the returned instances will have all the node `Buffer` methods\n * and the `Uint8Array` methods. Square bracket notation works as expected -- it\n * returns a single octet.\n *\n * The `Uint8Array` prototype remains unmodified.\n */\n\nfunction Buffer (arg, encodingOrOffset, length) {\n if (!Buffer.TYPED_ARRAY_SUPPORT && !(this instanceof Buffer)) {\n return new Buffer(arg, encodingOrOffset, length)\n }\n\n // Common case.\n if (typeof arg === 'number') {\n if (typeof encodingOrOffset === 'string') {\n throw new Error(\n 'If encoding is specified then the first argument must be a string'\n )\n }\n return allocUnsafe(this, arg)\n }\n return from(this, arg, encodingOrOffset, length)\n}\n\nBuffer.poolSize = 8192 // not used by this implementation\n\n// TODO: Legacy, not needed anymore. Remove in next major version.\nBuffer._augment = function (arr) {\n arr.__proto__ = Buffer.prototype\n return arr\n}\n\nfunction from (that, value, encodingOrOffset, length) {\n if (typeof value === 'number') {\n throw new TypeError('\"value\" argument must not be a number')\n }\n\n if (typeof ArrayBuffer !== 'undefined' && value instanceof ArrayBuffer) {\n return fromArrayBuffer(that, value, encodingOrOffset, length)\n }\n\n if (typeof value === 'string') {\n return fromString(that, value, encodingOrOffset)\n }\n\n return fromObject(that, value)\n}\n\n/**\n * Functionally equivalent to Buffer(arg, encoding) but throws a TypeError\n * if value is a number.\n * Buffer.from(str[, encoding])\n * Buffer.from(array)\n * Buffer.from(buffer)\n * Buffer.from(arrayBuffer[, byteOffset[, length]])\n **/\nBuffer.from = function (value, encodingOrOffset, length) {\n return from(null, value, encodingOrOffset, length)\n}\n\nif (Buffer.TYPED_ARRAY_SUPPORT) {\n Buffer.prototype.__proto__ = Uint8Array.prototype\n Buffer.__proto__ = Uint8Array\n if (typeof Symbol !== 'undefined' && Symbol.species &&\n Buffer[Symbol.species] === Buffer) {\n // Fix subarray() in ES2016. See: https://github.com/feross/buffer/pull/97\n Object.defineProperty(Buffer, Symbol.species, {\n value: null,\n configurable: true\n })\n }\n}\n\nfunction assertSize (size) {\n if (typeof size !== 'number') {\n throw new TypeError('\"size\" argument must be a number')\n } else if (size < 0) {\n throw new RangeError('\"size\" argument must not be negative')\n }\n}\n\nfunction alloc (that, size, fill, encoding) {\n assertSize(size)\n if (size <= 0) {\n return createBuffer(that, size)\n }\n if (fill !== undefined) {\n // Only pay attention to encoding if it's a string. This\n // prevents accidentally sending in a number that would\n // be interpretted as a start offset.\n return typeof encoding === 'string'\n ? createBuffer(that, size).fill(fill, encoding)\n : createBuffer(that, size).fill(fill)\n }\n return createBuffer(that, size)\n}\n\n/**\n * Creates a new filled Buffer instance.\n * alloc(size[, fill[, encoding]])\n **/\nBuffer.alloc = function (size, fill, encoding) {\n return alloc(null, size, fill, encoding)\n}\n\nfunction allocUnsafe (that, size) {\n assertSize(size)\n that = createBuffer(that, size < 0 ? 0 : checked(size) | 0)\n if (!Buffer.TYPED_ARRAY_SUPPORT) {\n for (var i = 0; i < size; ++i) {\n that[i] = 0\n }\n }\n return that\n}\n\n/**\n * Equivalent to Buffer(num), by default creates a non-zero-filled Buffer instance.\n * */\nBuffer.allocUnsafe = function (size) {\n return allocUnsafe(null, size)\n}\n/**\n * Equivalent to SlowBuffer(num), by default creates a non-zero-filled Buffer instance.\n */\nBuffer.allocUnsafeSlow = function (size) {\n return allocUnsafe(null, size)\n}\n\nfunction fromString (that, string, encoding) {\n if (typeof encoding !== 'string' || encoding === '') {\n encoding = 'utf8'\n }\n\n if (!Buffer.isEncoding(encoding)) {\n throw new TypeError('\"encoding\" must be a valid string encoding')\n }\n\n var length = byteLength(string, encoding) | 0\n that = createBuffer(that, length)\n\n var actual = that.write(string, encoding)\n\n if (actual !== length) {\n // Writing a hex string, for example, that contains invalid characters will\n // cause everything after the first invalid character to be ignored. (e.g.\n // 'abxxcd' will be treated as 'ab')\n that = that.slice(0, actual)\n }\n\n return that\n}\n\nfunction fromArrayLike (that, array) {\n var length = array.length < 0 ? 0 : checked(array.length) | 0\n that = createBuffer(that, length)\n for (var i = 0; i < length; i += 1) {\n that[i] = array[i] & 255\n }\n return that\n}\n\nfunction fromArrayBuffer (that, array, byteOffset, length) {\n array.byteLength // this throws if `array` is not a valid ArrayBuffer\n\n if (byteOffset < 0 || array.byteLength < byteOffset) {\n throw new RangeError('\\'offset\\' is out of bounds')\n }\n\n if (array.byteLength < byteOffset + (length || 0)) {\n throw new RangeError('\\'length\\' is out of bounds')\n }\n\n if (byteOffset === undefined && length === undefined) {\n array = new Uint8Array(array)\n } else if (length === undefined) {\n array = new Uint8Array(array, byteOffset)\n } else {\n array = new Uint8Array(array, byteOffset, length)\n }\n\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n // Return an augmented `Uint8Array` instance, for best performance\n that = array\n that.__proto__ = Buffer.prototype\n } else {\n // Fallback: Return an object instance of the Buffer class\n that = fromArrayLike(that, array)\n }\n return that\n}\n\nfunction fromObject (that, obj) {\n if (Buffer.isBuffer(obj)) {\n var len = checked(obj.length) | 0\n that = createBuffer(that, len)\n\n if (that.length === 0) {\n return that\n }\n\n obj.copy(that, 0, 0, len)\n return that\n }\n\n if (obj) {\n if ((typeof ArrayBuffer !== 'undefined' &&\n obj.buffer instanceof ArrayBuffer) || 'length' in obj) {\n if (typeof obj.length !== 'number' || isnan(obj.length)) {\n return createBuffer(that, 0)\n }\n return fromArrayLike(that, obj)\n }\n\n if (obj.type === 'Buffer' && isArray(obj.data)) {\n return fromArrayLike(that, obj.data)\n }\n }\n\n throw new TypeError('First argument must be a string, Buffer, ArrayBuffer, Array, or array-like object.')\n}\n\nfunction checked (length) {\n // Note: cannot use `length < kMaxLength()` here because that fails when\n // length is NaN (which is otherwise coerced to zero.)\n if (length >= kMaxLength()) {\n throw new RangeError('Attempt to allocate Buffer larger than maximum ' +\n 'size: 0x' + kMaxLength().toString(16) + ' bytes')\n }\n return length | 0\n}\n\nfunction SlowBuffer (length) {\n if (+length != length) { // eslint-disable-line eqeqeq\n length = 0\n }\n return Buffer.alloc(+length)\n}\n\nBuffer.isBuffer = function isBuffer (b) {\n return !!(b != null && b._isBuffer)\n}\n\nBuffer.compare = function compare (a, b) {\n if (!Buffer.isBuffer(a) || !Buffer.isBuffer(b)) {\n throw new TypeError('Arguments must be Buffers')\n }\n\n if (a === b) return 0\n\n var x = a.length\n var y = b.length\n\n for (var i = 0, len = Math.min(x, y); i < len; ++i) {\n if (a[i] !== b[i]) {\n x = a[i]\n y = b[i]\n break\n }\n }\n\n if (x < y) return -1\n if (y < x) return 1\n return 0\n}\n\nBuffer.isEncoding = function isEncoding (encoding) {\n switch (String(encoding).toLowerCase()) {\n case 'hex':\n case 'utf8':\n case 'utf-8':\n case 'ascii':\n case 'latin1':\n case 'binary':\n case 'base64':\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return true\n default:\n return false\n }\n}\n\nBuffer.concat = function concat (list, length) {\n if (!isArray(list)) {\n throw new TypeError('\"list\" argument must be an Array of Buffers')\n }\n\n if (list.length === 0) {\n return Buffer.alloc(0)\n }\n\n var i\n if (length === undefined) {\n length = 0\n for (i = 0; i < list.length; ++i) {\n length += list[i].length\n }\n }\n\n var buffer = Buffer.allocUnsafe(length)\n var pos = 0\n for (i = 0; i < list.length; ++i) {\n var buf = list[i]\n if (!Buffer.isBuffer(buf)) {\n throw new TypeError('\"list\" argument must be an Array of Buffers')\n }\n buf.copy(buffer, pos)\n pos += buf.length\n }\n return buffer\n}\n\nfunction byteLength (string, encoding) {\n if (Buffer.isBuffer(string)) {\n return string.length\n }\n if (typeof ArrayBuffer !== 'undefined' && typeof ArrayBuffer.isView === 'function' &&\n (ArrayBuffer.isView(string) || string instanceof ArrayBuffer)) {\n return string.byteLength\n }\n if (typeof string !== 'string') {\n string = '' + string\n }\n\n var len = string.length\n if (len === 0) return 0\n\n // Use a for loop to avoid recursion\n var loweredCase = false\n for (;;) {\n switch (encoding) {\n case 'ascii':\n case 'latin1':\n case 'binary':\n return len\n case 'utf8':\n case 'utf-8':\n case undefined:\n return utf8ToBytes(string).length\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return len * 2\n case 'hex':\n return len >>> 1\n case 'base64':\n return base64ToBytes(string).length\n default:\n if (loweredCase) return utf8ToBytes(string).length // assume utf8\n encoding = ('' + encoding).toLowerCase()\n loweredCase = true\n }\n }\n}\nBuffer.byteLength = byteLength\n\nfunction slowToString (encoding, start, end) {\n var loweredCase = false\n\n // No need to verify that \"this.length <= MAX_UINT32\" since it's a read-only\n // property of a typed array.\n\n // This behaves neither like String nor Uint8Array in that we set start/end\n // to their upper/lower bounds if the value passed is out of range.\n // undefined is handled specially as per ECMA-262 6th Edition,\n // Section 13.3.3.7 Runtime Semantics: KeyedBindingInitialization.\n if (start === undefined || start < 0) {\n start = 0\n }\n // Return early if start > this.length. Done here to prevent potential uint32\n // coercion fail below.\n if (start > this.length) {\n return ''\n }\n\n if (end === undefined || end > this.length) {\n end = this.length\n }\n\n if (end <= 0) {\n return ''\n }\n\n // Force coersion to uint32. This will also coerce falsey/NaN values to 0.\n end >>>= 0\n start >>>= 0\n\n if (end <= start) {\n return ''\n }\n\n if (!encoding) encoding = 'utf8'\n\n while (true) {\n switch (encoding) {\n case 'hex':\n return hexSlice(this, start, end)\n\n case 'utf8':\n case 'utf-8':\n return utf8Slice(this, start, end)\n\n case 'ascii':\n return asciiSlice(this, start, end)\n\n case 'latin1':\n case 'binary':\n return latin1Slice(this, start, end)\n\n case 'base64':\n return base64Slice(this, start, end)\n\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return utf16leSlice(this, start, end)\n\n default:\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n encoding = (encoding + '').toLowerCase()\n loweredCase = true\n }\n }\n}\n\n// The property is used by `Buffer.isBuffer` and `is-buffer` (in Safari 5-7) to detect\n// Buffer instances.\nBuffer.prototype._isBuffer = true\n\nfunction swap (b, n, m) {\n var i = b[n]\n b[n] = b[m]\n b[m] = i\n}\n\nBuffer.prototype.swap16 = function swap16 () {\n var len = this.length\n if (len % 2 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 16-bits')\n }\n for (var i = 0; i < len; i += 2) {\n swap(this, i, i + 1)\n }\n return this\n}\n\nBuffer.prototype.swap32 = function swap32 () {\n var len = this.length\n if (len % 4 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 32-bits')\n }\n for (var i = 0; i < len; i += 4) {\n swap(this, i, i + 3)\n swap(this, i + 1, i + 2)\n }\n return this\n}\n\nBuffer.prototype.swap64 = function swap64 () {\n var len = this.length\n if (len % 8 !== 0) {\n throw new RangeError('Buffer size must be a multiple of 64-bits')\n }\n for (var i = 0; i < len; i += 8) {\n swap(this, i, i + 7)\n swap(this, i + 1, i + 6)\n swap(this, i + 2, i + 5)\n swap(this, i + 3, i + 4)\n }\n return this\n}\n\nBuffer.prototype.toString = function toString () {\n var length = this.length | 0\n if (length === 0) return ''\n if (arguments.length === 0) return utf8Slice(this, 0, length)\n return slowToString.apply(this, arguments)\n}\n\nBuffer.prototype.equals = function equals (b) {\n if (!Buffer.isBuffer(b)) throw new TypeError('Argument must be a Buffer')\n if (this === b) return true\n return Buffer.compare(this, b) === 0\n}\n\nBuffer.prototype.inspect = function inspect () {\n var str = ''\n var max = exports.INSPECT_MAX_BYTES\n if (this.length > 0) {\n str = this.toString('hex', 0, max).match(/.{2}/g).join(' ')\n if (this.length > max) str += ' ... '\n }\n return ''\n}\n\nBuffer.prototype.compare = function compare (target, start, end, thisStart, thisEnd) {\n if (!Buffer.isBuffer(target)) {\n throw new TypeError('Argument must be a Buffer')\n }\n\n if (start === undefined) {\n start = 0\n }\n if (end === undefined) {\n end = target ? target.length : 0\n }\n if (thisStart === undefined) {\n thisStart = 0\n }\n if (thisEnd === undefined) {\n thisEnd = this.length\n }\n\n if (start < 0 || end > target.length || thisStart < 0 || thisEnd > this.length) {\n throw new RangeError('out of range index')\n }\n\n if (thisStart >= thisEnd && start >= end) {\n return 0\n }\n if (thisStart >= thisEnd) {\n return -1\n }\n if (start >= end) {\n return 1\n }\n\n start >>>= 0\n end >>>= 0\n thisStart >>>= 0\n thisEnd >>>= 0\n\n if (this === target) return 0\n\n var x = thisEnd - thisStart\n var y = end - start\n var len = Math.min(x, y)\n\n var thisCopy = this.slice(thisStart, thisEnd)\n var targetCopy = target.slice(start, end)\n\n for (var i = 0; i < len; ++i) {\n if (thisCopy[i] !== targetCopy[i]) {\n x = thisCopy[i]\n y = targetCopy[i]\n break\n }\n }\n\n if (x < y) return -1\n if (y < x) return 1\n return 0\n}\n\n// Finds either the first index of `val` in `buffer` at offset >= `byteOffset`,\n// OR the last index of `val` in `buffer` at offset <= `byteOffset`.\n//\n// Arguments:\n// - buffer - a Buffer to search\n// - val - a string, Buffer, or number\n// - byteOffset - an index into `buffer`; will be clamped to an int32\n// - encoding - an optional encoding, relevant is val is a string\n// - dir - true for indexOf, false for lastIndexOf\nfunction bidirectionalIndexOf (buffer, val, byteOffset, encoding, dir) {\n // Empty buffer means no match\n if (buffer.length === 0) return -1\n\n // Normalize byteOffset\n if (typeof byteOffset === 'string') {\n encoding = byteOffset\n byteOffset = 0\n } else if (byteOffset > 0x7fffffff) {\n byteOffset = 0x7fffffff\n } else if (byteOffset < -0x80000000) {\n byteOffset = -0x80000000\n }\n byteOffset = +byteOffset // Coerce to Number.\n if (isNaN(byteOffset)) {\n // byteOffset: it it's undefined, null, NaN, \"foo\", etc, search whole buffer\n byteOffset = dir ? 0 : (buffer.length - 1)\n }\n\n // Normalize byteOffset: negative offsets start from the end of the buffer\n if (byteOffset < 0) byteOffset = buffer.length + byteOffset\n if (byteOffset >= buffer.length) {\n if (dir) return -1\n else byteOffset = buffer.length - 1\n } else if (byteOffset < 0) {\n if (dir) byteOffset = 0\n else return -1\n }\n\n // Normalize val\n if (typeof val === 'string') {\n val = Buffer.from(val, encoding)\n }\n\n // Finally, search either indexOf (if dir is true) or lastIndexOf\n if (Buffer.isBuffer(val)) {\n // Special case: looking for empty string/buffer always fails\n if (val.length === 0) {\n return -1\n }\n return arrayIndexOf(buffer, val, byteOffset, encoding, dir)\n } else if (typeof val === 'number') {\n val = val & 0xFF // Search for a byte value [0-255]\n if (Buffer.TYPED_ARRAY_SUPPORT &&\n typeof Uint8Array.prototype.indexOf === 'function') {\n if (dir) {\n return Uint8Array.prototype.indexOf.call(buffer, val, byteOffset)\n } else {\n return Uint8Array.prototype.lastIndexOf.call(buffer, val, byteOffset)\n }\n }\n return arrayIndexOf(buffer, [ val ], byteOffset, encoding, dir)\n }\n\n throw new TypeError('val must be string, number or Buffer')\n}\n\nfunction arrayIndexOf (arr, val, byteOffset, encoding, dir) {\n var indexSize = 1\n var arrLength = arr.length\n var valLength = val.length\n\n if (encoding !== undefined) {\n encoding = String(encoding).toLowerCase()\n if (encoding === 'ucs2' || encoding === 'ucs-2' ||\n encoding === 'utf16le' || encoding === 'utf-16le') {\n if (arr.length < 2 || val.length < 2) {\n return -1\n }\n indexSize = 2\n arrLength /= 2\n valLength /= 2\n byteOffset /= 2\n }\n }\n\n function read (buf, i) {\n if (indexSize === 1) {\n return buf[i]\n } else {\n return buf.readUInt16BE(i * indexSize)\n }\n }\n\n var i\n if (dir) {\n var foundIndex = -1\n for (i = byteOffset; i < arrLength; i++) {\n if (read(arr, i) === read(val, foundIndex === -1 ? 0 : i - foundIndex)) {\n if (foundIndex === -1) foundIndex = i\n if (i - foundIndex + 1 === valLength) return foundIndex * indexSize\n } else {\n if (foundIndex !== -1) i -= i - foundIndex\n foundIndex = -1\n }\n }\n } else {\n if (byteOffset + valLength > arrLength) byteOffset = arrLength - valLength\n for (i = byteOffset; i >= 0; i--) {\n var found = true\n for (var j = 0; j < valLength; j++) {\n if (read(arr, i + j) !== read(val, j)) {\n found = false\n break\n }\n }\n if (found) return i\n }\n }\n\n return -1\n}\n\nBuffer.prototype.includes = function includes (val, byteOffset, encoding) {\n return this.indexOf(val, byteOffset, encoding) !== -1\n}\n\nBuffer.prototype.indexOf = function indexOf (val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, true)\n}\n\nBuffer.prototype.lastIndexOf = function lastIndexOf (val, byteOffset, encoding) {\n return bidirectionalIndexOf(this, val, byteOffset, encoding, false)\n}\n\nfunction hexWrite (buf, string, offset, length) {\n offset = Number(offset) || 0\n var remaining = buf.length - offset\n if (!length) {\n length = remaining\n } else {\n length = Number(length)\n if (length > remaining) {\n length = remaining\n }\n }\n\n // must be an even number of digits\n var strLen = string.length\n if (strLen % 2 !== 0) throw new TypeError('Invalid hex string')\n\n if (length > strLen / 2) {\n length = strLen / 2\n }\n for (var i = 0; i < length; ++i) {\n var parsed = parseInt(string.substr(i * 2, 2), 16)\n if (isNaN(parsed)) return i\n buf[offset + i] = parsed\n }\n return i\n}\n\nfunction utf8Write (buf, string, offset, length) {\n return blitBuffer(utf8ToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nfunction asciiWrite (buf, string, offset, length) {\n return blitBuffer(asciiToBytes(string), buf, offset, length)\n}\n\nfunction latin1Write (buf, string, offset, length) {\n return asciiWrite(buf, string, offset, length)\n}\n\nfunction base64Write (buf, string, offset, length) {\n return blitBuffer(base64ToBytes(string), buf, offset, length)\n}\n\nfunction ucs2Write (buf, string, offset, length) {\n return blitBuffer(utf16leToBytes(string, buf.length - offset), buf, offset, length)\n}\n\nBuffer.prototype.write = function write (string, offset, length, encoding) {\n // Buffer#write(string)\n if (offset === undefined) {\n encoding = 'utf8'\n length = this.length\n offset = 0\n // Buffer#write(string, encoding)\n } else if (length === undefined && typeof offset === 'string') {\n encoding = offset\n length = this.length\n offset = 0\n // Buffer#write(string, offset[, length][, encoding])\n } else if (isFinite(offset)) {\n offset = offset | 0\n if (isFinite(length)) {\n length = length | 0\n if (encoding === undefined) encoding = 'utf8'\n } else {\n encoding = length\n length = undefined\n }\n // legacy write(string, encoding, offset, length) - remove in v0.13\n } else {\n throw new Error(\n 'Buffer.write(string, encoding, offset[, length]) is no longer supported'\n )\n }\n\n var remaining = this.length - offset\n if (length === undefined || length > remaining) length = remaining\n\n if ((string.length > 0 && (length < 0 || offset < 0)) || offset > this.length) {\n throw new RangeError('Attempt to write outside buffer bounds')\n }\n\n if (!encoding) encoding = 'utf8'\n\n var loweredCase = false\n for (;;) {\n switch (encoding) {\n case 'hex':\n return hexWrite(this, string, offset, length)\n\n case 'utf8':\n case 'utf-8':\n return utf8Write(this, string, offset, length)\n\n case 'ascii':\n return asciiWrite(this, string, offset, length)\n\n case 'latin1':\n case 'binary':\n return latin1Write(this, string, offset, length)\n\n case 'base64':\n // Warning: maxLength not taken into account in base64Write\n return base64Write(this, string, offset, length)\n\n case 'ucs2':\n case 'ucs-2':\n case 'utf16le':\n case 'utf-16le':\n return ucs2Write(this, string, offset, length)\n\n default:\n if (loweredCase) throw new TypeError('Unknown encoding: ' + encoding)\n encoding = ('' + encoding).toLowerCase()\n loweredCase = true\n }\n }\n}\n\nBuffer.prototype.toJSON = function toJSON () {\n return {\n type: 'Buffer',\n data: Array.prototype.slice.call(this._arr || this, 0)\n }\n}\n\nfunction base64Slice (buf, start, end) {\n if (start === 0 && end === buf.length) {\n return base64.fromByteArray(buf)\n } else {\n return base64.fromByteArray(buf.slice(start, end))\n }\n}\n\nfunction utf8Slice (buf, start, end) {\n end = Math.min(buf.length, end)\n var res = []\n\n var i = start\n while (i < end) {\n var firstByte = buf[i]\n var codePoint = null\n var bytesPerSequence = (firstByte > 0xEF) ? 4\n : (firstByte > 0xDF) ? 3\n : (firstByte > 0xBF) ? 2\n : 1\n\n if (i + bytesPerSequence <= end) {\n var secondByte, thirdByte, fourthByte, tempCodePoint\n\n switch (bytesPerSequence) {\n case 1:\n if (firstByte < 0x80) {\n codePoint = firstByte\n }\n break\n case 2:\n secondByte = buf[i + 1]\n if ((secondByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0x1F) << 0x6 | (secondByte & 0x3F)\n if (tempCodePoint > 0x7F) {\n codePoint = tempCodePoint\n }\n }\n break\n case 3:\n secondByte = buf[i + 1]\n thirdByte = buf[i + 2]\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0xF) << 0xC | (secondByte & 0x3F) << 0x6 | (thirdByte & 0x3F)\n if (tempCodePoint > 0x7FF && (tempCodePoint < 0xD800 || tempCodePoint > 0xDFFF)) {\n codePoint = tempCodePoint\n }\n }\n break\n case 4:\n secondByte = buf[i + 1]\n thirdByte = buf[i + 2]\n fourthByte = buf[i + 3]\n if ((secondByte & 0xC0) === 0x80 && (thirdByte & 0xC0) === 0x80 && (fourthByte & 0xC0) === 0x80) {\n tempCodePoint = (firstByte & 0xF) << 0x12 | (secondByte & 0x3F) << 0xC | (thirdByte & 0x3F) << 0x6 | (fourthByte & 0x3F)\n if (tempCodePoint > 0xFFFF && tempCodePoint < 0x110000) {\n codePoint = tempCodePoint\n }\n }\n }\n }\n\n if (codePoint === null) {\n // we did not generate a valid codePoint so insert a\n // replacement char (U+FFFD) and advance only 1 byte\n codePoint = 0xFFFD\n bytesPerSequence = 1\n } else if (codePoint > 0xFFFF) {\n // encode to utf16 (surrogate pair dance)\n codePoint -= 0x10000\n res.push(codePoint >>> 10 & 0x3FF | 0xD800)\n codePoint = 0xDC00 | codePoint & 0x3FF\n }\n\n res.push(codePoint)\n i += bytesPerSequence\n }\n\n return decodeCodePointsArray(res)\n}\n\n// Based on http://stackoverflow.com/a/22747272/680742, the browser with\n// the lowest limit is Chrome, with 0x10000 args.\n// We go 1 magnitude less, for safety\nvar MAX_ARGUMENTS_LENGTH = 0x1000\n\nfunction decodeCodePointsArray (codePoints) {\n var len = codePoints.length\n if (len <= MAX_ARGUMENTS_LENGTH) {\n return String.fromCharCode.apply(String, codePoints) // avoid extra slice()\n }\n\n // Decode in chunks to avoid \"call stack size exceeded\".\n var res = ''\n var i = 0\n while (i < len) {\n res += String.fromCharCode.apply(\n String,\n codePoints.slice(i, i += MAX_ARGUMENTS_LENGTH)\n )\n }\n return res\n}\n\nfunction asciiSlice (buf, start, end) {\n var ret = ''\n end = Math.min(buf.length, end)\n\n for (var i = start; i < end; ++i) {\n ret += String.fromCharCode(buf[i] & 0x7F)\n }\n return ret\n}\n\nfunction latin1Slice (buf, start, end) {\n var ret = ''\n end = Math.min(buf.length, end)\n\n for (var i = start; i < end; ++i) {\n ret += String.fromCharCode(buf[i])\n }\n return ret\n}\n\nfunction hexSlice (buf, start, end) {\n var len = buf.length\n\n if (!start || start < 0) start = 0\n if (!end || end < 0 || end > len) end = len\n\n var out = ''\n for (var i = start; i < end; ++i) {\n out += toHex(buf[i])\n }\n return out\n}\n\nfunction utf16leSlice (buf, start, end) {\n var bytes = buf.slice(start, end)\n var res = ''\n for (var i = 0; i < bytes.length; i += 2) {\n res += String.fromCharCode(bytes[i] + bytes[i + 1] * 256)\n }\n return res\n}\n\nBuffer.prototype.slice = function slice (start, end) {\n var len = this.length\n start = ~~start\n end = end === undefined ? len : ~~end\n\n if (start < 0) {\n start += len\n if (start < 0) start = 0\n } else if (start > len) {\n start = len\n }\n\n if (end < 0) {\n end += len\n if (end < 0) end = 0\n } else if (end > len) {\n end = len\n }\n\n if (end < start) end = start\n\n var newBuf\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n newBuf = this.subarray(start, end)\n newBuf.__proto__ = Buffer.prototype\n } else {\n var sliceLen = end - start\n newBuf = new Buffer(sliceLen, undefined)\n for (var i = 0; i < sliceLen; ++i) {\n newBuf[i] = this[i + start]\n }\n }\n\n return newBuf\n}\n\n/*\n * Need to make sure that buffer isn't trying to write out of bounds.\n */\nfunction checkOffset (offset, ext, length) {\n if ((offset % 1) !== 0 || offset < 0) throw new RangeError('offset is not uint')\n if (offset + ext > length) throw new RangeError('Trying to access beyond buffer length')\n}\n\nBuffer.prototype.readUIntLE = function readUIntLE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n var val = this[offset]\n var mul = 1\n var i = 0\n while (++i < byteLength && (mul *= 0x100)) {\n val += this[offset + i] * mul\n }\n\n return val\n}\n\nBuffer.prototype.readUIntBE = function readUIntBE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) {\n checkOffset(offset, byteLength, this.length)\n }\n\n var val = this[offset + --byteLength]\n var mul = 1\n while (byteLength > 0 && (mul *= 0x100)) {\n val += this[offset + --byteLength] * mul\n }\n\n return val\n}\n\nBuffer.prototype.readUInt8 = function readUInt8 (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 1, this.length)\n return this[offset]\n}\n\nBuffer.prototype.readUInt16LE = function readUInt16LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n return this[offset] | (this[offset + 1] << 8)\n}\n\nBuffer.prototype.readUInt16BE = function readUInt16BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n return (this[offset] << 8) | this[offset + 1]\n}\n\nBuffer.prototype.readUInt32LE = function readUInt32LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return ((this[offset]) |\n (this[offset + 1] << 8) |\n (this[offset + 2] << 16)) +\n (this[offset + 3] * 0x1000000)\n}\n\nBuffer.prototype.readUInt32BE = function readUInt32BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset] * 0x1000000) +\n ((this[offset + 1] << 16) |\n (this[offset + 2] << 8) |\n this[offset + 3])\n}\n\nBuffer.prototype.readIntLE = function readIntLE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n var val = this[offset]\n var mul = 1\n var i = 0\n while (++i < byteLength && (mul *= 0x100)) {\n val += this[offset + i] * mul\n }\n mul *= 0x80\n\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n return val\n}\n\nBuffer.prototype.readIntBE = function readIntBE (offset, byteLength, noAssert) {\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) checkOffset(offset, byteLength, this.length)\n\n var i = byteLength\n var mul = 1\n var val = this[offset + --i]\n while (i > 0 && (mul *= 0x100)) {\n val += this[offset + --i] * mul\n }\n mul *= 0x80\n\n if (val >= mul) val -= Math.pow(2, 8 * byteLength)\n\n return val\n}\n\nBuffer.prototype.readInt8 = function readInt8 (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 1, this.length)\n if (!(this[offset] & 0x80)) return (this[offset])\n return ((0xff - this[offset] + 1) * -1)\n}\n\nBuffer.prototype.readInt16LE = function readInt16LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n var val = this[offset] | (this[offset + 1] << 8)\n return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt16BE = function readInt16BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 2, this.length)\n var val = this[offset + 1] | (this[offset] << 8)\n return (val & 0x8000) ? val | 0xFFFF0000 : val\n}\n\nBuffer.prototype.readInt32LE = function readInt32LE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset]) |\n (this[offset + 1] << 8) |\n (this[offset + 2] << 16) |\n (this[offset + 3] << 24)\n}\n\nBuffer.prototype.readInt32BE = function readInt32BE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n\n return (this[offset] << 24) |\n (this[offset + 1] << 16) |\n (this[offset + 2] << 8) |\n (this[offset + 3])\n}\n\nBuffer.prototype.readFloatLE = function readFloatLE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n return ieee754.read(this, offset, true, 23, 4)\n}\n\nBuffer.prototype.readFloatBE = function readFloatBE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 4, this.length)\n return ieee754.read(this, offset, false, 23, 4)\n}\n\nBuffer.prototype.readDoubleLE = function readDoubleLE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 8, this.length)\n return ieee754.read(this, offset, true, 52, 8)\n}\n\nBuffer.prototype.readDoubleBE = function readDoubleBE (offset, noAssert) {\n if (!noAssert) checkOffset(offset, 8, this.length)\n return ieee754.read(this, offset, false, 52, 8)\n}\n\nfunction checkInt (buf, value, offset, ext, max, min) {\n if (!Buffer.isBuffer(buf)) throw new TypeError('\"buffer\" argument must be a Buffer instance')\n if (value > max || value < min) throw new RangeError('\"value\" argument is out of bounds')\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\n}\n\nBuffer.prototype.writeUIntLE = function writeUIntLE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) {\n var maxBytes = Math.pow(2, 8 * byteLength) - 1\n checkInt(this, value, offset, byteLength, maxBytes, 0)\n }\n\n var mul = 1\n var i = 0\n this[offset] = value & 0xFF\n while (++i < byteLength && (mul *= 0x100)) {\n this[offset + i] = (value / mul) & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeUIntBE = function writeUIntBE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n byteLength = byteLength | 0\n if (!noAssert) {\n var maxBytes = Math.pow(2, 8 * byteLength) - 1\n checkInt(this, value, offset, byteLength, maxBytes, 0)\n }\n\n var i = byteLength - 1\n var mul = 1\n this[offset + i] = value & 0xFF\n while (--i >= 0 && (mul *= 0x100)) {\n this[offset + i] = (value / mul) & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeUInt8 = function writeUInt8 (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 1, 0xff, 0)\n if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n this[offset] = (value & 0xff)\n return offset + 1\n}\n\nfunction objectWriteUInt16 (buf, value, offset, littleEndian) {\n if (value < 0) value = 0xffff + value + 1\n for (var i = 0, j = Math.min(buf.length - offset, 2); i < j; ++i) {\n buf[offset + i] = (value & (0xff << (8 * (littleEndian ? i : 1 - i)))) >>>\n (littleEndian ? i : 1 - i) * 8\n }\n}\n\nBuffer.prototype.writeUInt16LE = function writeUInt16LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n } else {\n objectWriteUInt16(this, value, offset, true)\n }\n return offset + 2\n}\n\nBuffer.prototype.writeUInt16BE = function writeUInt16BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0xffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 8)\n this[offset + 1] = (value & 0xff)\n } else {\n objectWriteUInt16(this, value, offset, false)\n }\n return offset + 2\n}\n\nfunction objectWriteUInt32 (buf, value, offset, littleEndian) {\n if (value < 0) value = 0xffffffff + value + 1\n for (var i = 0, j = Math.min(buf.length - offset, 4); i < j; ++i) {\n buf[offset + i] = (value >>> (littleEndian ? i : 3 - i) * 8) & 0xff\n }\n}\n\nBuffer.prototype.writeUInt32LE = function writeUInt32LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset + 3] = (value >>> 24)\n this[offset + 2] = (value >>> 16)\n this[offset + 1] = (value >>> 8)\n this[offset] = (value & 0xff)\n } else {\n objectWriteUInt32(this, value, offset, true)\n }\n return offset + 4\n}\n\nBuffer.prototype.writeUInt32BE = function writeUInt32BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0xffffffff, 0)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 24)\n this[offset + 1] = (value >>> 16)\n this[offset + 2] = (value >>> 8)\n this[offset + 3] = (value & 0xff)\n } else {\n objectWriteUInt32(this, value, offset, false)\n }\n return offset + 4\n}\n\nBuffer.prototype.writeIntLE = function writeIntLE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) {\n var limit = Math.pow(2, 8 * byteLength - 1)\n\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\n }\n\n var i = 0\n var mul = 1\n var sub = 0\n this[offset] = value & 0xFF\n while (++i < byteLength && (mul *= 0x100)) {\n if (value < 0 && sub === 0 && this[offset + i - 1] !== 0) {\n sub = 1\n }\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeIntBE = function writeIntBE (value, offset, byteLength, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) {\n var limit = Math.pow(2, 8 * byteLength - 1)\n\n checkInt(this, value, offset, byteLength, limit - 1, -limit)\n }\n\n var i = byteLength - 1\n var mul = 1\n var sub = 0\n this[offset + i] = value & 0xFF\n while (--i >= 0 && (mul *= 0x100)) {\n if (value < 0 && sub === 0 && this[offset + i + 1] !== 0) {\n sub = 1\n }\n this[offset + i] = ((value / mul) >> 0) - sub & 0xFF\n }\n\n return offset + byteLength\n}\n\nBuffer.prototype.writeInt8 = function writeInt8 (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 1, 0x7f, -0x80)\n if (!Buffer.TYPED_ARRAY_SUPPORT) value = Math.floor(value)\n if (value < 0) value = 0xff + value + 1\n this[offset] = (value & 0xff)\n return offset + 1\n}\n\nBuffer.prototype.writeInt16LE = function writeInt16LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n } else {\n objectWriteUInt16(this, value, offset, true)\n }\n return offset + 2\n}\n\nBuffer.prototype.writeInt16BE = function writeInt16BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 2, 0x7fff, -0x8000)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 8)\n this[offset + 1] = (value & 0xff)\n } else {\n objectWriteUInt16(this, value, offset, false)\n }\n return offset + 2\n}\n\nBuffer.prototype.writeInt32LE = function writeInt32LE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value & 0xff)\n this[offset + 1] = (value >>> 8)\n this[offset + 2] = (value >>> 16)\n this[offset + 3] = (value >>> 24)\n } else {\n objectWriteUInt32(this, value, offset, true)\n }\n return offset + 4\n}\n\nBuffer.prototype.writeInt32BE = function writeInt32BE (value, offset, noAssert) {\n value = +value\n offset = offset | 0\n if (!noAssert) checkInt(this, value, offset, 4, 0x7fffffff, -0x80000000)\n if (value < 0) value = 0xffffffff + value + 1\n if (Buffer.TYPED_ARRAY_SUPPORT) {\n this[offset] = (value >>> 24)\n this[offset + 1] = (value >>> 16)\n this[offset + 2] = (value >>> 8)\n this[offset + 3] = (value & 0xff)\n } else {\n objectWriteUInt32(this, value, offset, false)\n }\n return offset + 4\n}\n\nfunction checkIEEE754 (buf, value, offset, ext, max, min) {\n if (offset + ext > buf.length) throw new RangeError('Index out of range')\n if (offset < 0) throw new RangeError('Index out of range')\n}\n\nfunction writeFloat (buf, value, offset, littleEndian, noAssert) {\n if (!noAssert) {\n checkIEEE754(buf, value, offset, 4, 3.4028234663852886e+38, -3.4028234663852886e+38)\n }\n ieee754.write(buf, value, offset, littleEndian, 23, 4)\n return offset + 4\n}\n\nBuffer.prototype.writeFloatLE = function writeFloatLE (value, offset, noAssert) {\n return writeFloat(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeFloatBE = function writeFloatBE (value, offset, noAssert) {\n return writeFloat(this, value, offset, false, noAssert)\n}\n\nfunction writeDouble (buf, value, offset, littleEndian, noAssert) {\n if (!noAssert) {\n checkIEEE754(buf, value, offset, 8, 1.7976931348623157E+308, -1.7976931348623157E+308)\n }\n ieee754.write(buf, value, offset, littleEndian, 52, 8)\n return offset + 8\n}\n\nBuffer.prototype.writeDoubleLE = function writeDoubleLE (value, offset, noAssert) {\n return writeDouble(this, value, offset, true, noAssert)\n}\n\nBuffer.prototype.writeDoubleBE = function writeDoubleBE (value, offset, noAssert) {\n return writeDouble(this, value, offset, false, noAssert)\n}\n\n// copy(targetBuffer, targetStart=0, sourceStart=0, sourceEnd=buffer.length)\nBuffer.prototype.copy = function copy (target, targetStart, start, end) {\n if (!start) start = 0\n if (!end && end !== 0) end = this.length\n if (targetStart >= target.length) targetStart = target.length\n if (!targetStart) targetStart = 0\n if (end > 0 && end < start) end = start\n\n // Copy 0 bytes; we're done\n if (end === start) return 0\n if (target.length === 0 || this.length === 0) return 0\n\n // Fatal error conditions\n if (targetStart < 0) {\n throw new RangeError('targetStart out of bounds')\n }\n if (start < 0 || start >= this.length) throw new RangeError('sourceStart out of bounds')\n if (end < 0) throw new RangeError('sourceEnd out of bounds')\n\n // Are we oob?\n if (end > this.length) end = this.length\n if (target.length - targetStart < end - start) {\n end = target.length - targetStart + start\n }\n\n var len = end - start\n var i\n\n if (this === target && start < targetStart && targetStart < end) {\n // descending copy from end\n for (i = len - 1; i >= 0; --i) {\n target[i + targetStart] = this[i + start]\n }\n } else if (len < 1000 || !Buffer.TYPED_ARRAY_SUPPORT) {\n // ascending copy from start\n for (i = 0; i < len; ++i) {\n target[i + targetStart] = this[i + start]\n }\n } else {\n Uint8Array.prototype.set.call(\n target,\n this.subarray(start, start + len),\n targetStart\n )\n }\n\n return len\n}\n\n// Usage:\n// buffer.fill(number[, offset[, end]])\n// buffer.fill(buffer[, offset[, end]])\n// buffer.fill(string[, offset[, end]][, encoding])\nBuffer.prototype.fill = function fill (val, start, end, encoding) {\n // Handle string cases:\n if (typeof val === 'string') {\n if (typeof start === 'string') {\n encoding = start\n start = 0\n end = this.length\n } else if (typeof end === 'string') {\n encoding = end\n end = this.length\n }\n if (val.length === 1) {\n var code = val.charCodeAt(0)\n if (code < 256) {\n val = code\n }\n }\n if (encoding !== undefined && typeof encoding !== 'string') {\n throw new TypeError('encoding must be a string')\n }\n if (typeof encoding === 'string' && !Buffer.isEncoding(encoding)) {\n throw new TypeError('Unknown encoding: ' + encoding)\n }\n } else if (typeof val === 'number') {\n val = val & 255\n }\n\n // Invalid ranges are not set to a default, so can range check early.\n if (start < 0 || this.length < start || this.length < end) {\n throw new RangeError('Out of range index')\n }\n\n if (end <= start) {\n return this\n }\n\n start = start >>> 0\n end = end === undefined ? this.length : end >>> 0\n\n if (!val) val = 0\n\n var i\n if (typeof val === 'number') {\n for (i = start; i < end; ++i) {\n this[i] = val\n }\n } else {\n var bytes = Buffer.isBuffer(val)\n ? val\n : utf8ToBytes(new Buffer(val, encoding).toString())\n var len = bytes.length\n for (i = 0; i < end - start; ++i) {\n this[i + start] = bytes[i % len]\n }\n }\n\n return this\n}\n\n// HELPER FUNCTIONS\n// ================\n\nvar INVALID_BASE64_RE = /[^+\\/0-9A-Za-z-_]/g\n\nfunction base64clean (str) {\n // Node strips out invalid characters like \\n and \\t from the string, base64-js does not\n str = stringtrim(str).replace(INVALID_BASE64_RE, '')\n // Node converts strings with length < 2 to ''\n if (str.length < 2) return ''\n // Node allows for non-padded base64 strings (missing trailing ===), base64-js does not\n while (str.length % 4 !== 0) {\n str = str + '='\n }\n return str\n}\n\nfunction stringtrim (str) {\n if (str.trim) return str.trim()\n return str.replace(/^\\s+|\\s+$/g, '')\n}\n\nfunction toHex (n) {\n if (n < 16) return '0' + n.toString(16)\n return n.toString(16)\n}\n\nfunction utf8ToBytes (string, units) {\n units = units || Infinity\n var codePoint\n var length = string.length\n var leadSurrogate = null\n var bytes = []\n\n for (var i = 0; i < length; ++i) {\n codePoint = string.charCodeAt(i)\n\n // is surrogate component\n if (codePoint > 0xD7FF && codePoint < 0xE000) {\n // last char was a lead\n if (!leadSurrogate) {\n // no lead yet\n if (codePoint > 0xDBFF) {\n // unexpected trail\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n continue\n } else if (i + 1 === length) {\n // unpaired lead\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n continue\n }\n\n // valid lead\n leadSurrogate = codePoint\n\n continue\n }\n\n // 2 leads in a row\n if (codePoint < 0xDC00) {\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n leadSurrogate = codePoint\n continue\n }\n\n // valid surrogate pair\n codePoint = (leadSurrogate - 0xD800 << 10 | codePoint - 0xDC00) + 0x10000\n } else if (leadSurrogate) {\n // valid bmp char, but last char was a lead\n if ((units -= 3) > -1) bytes.push(0xEF, 0xBF, 0xBD)\n }\n\n leadSurrogate = null\n\n // encode utf8\n if (codePoint < 0x80) {\n if ((units -= 1) < 0) break\n bytes.push(codePoint)\n } else if (codePoint < 0x800) {\n if ((units -= 2) < 0) break\n bytes.push(\n codePoint >> 0x6 | 0xC0,\n codePoint & 0x3F | 0x80\n )\n } else if (codePoint < 0x10000) {\n if ((units -= 3) < 0) break\n bytes.push(\n codePoint >> 0xC | 0xE0,\n codePoint >> 0x6 & 0x3F | 0x80,\n codePoint & 0x3F | 0x80\n )\n } else if (codePoint < 0x110000) {\n if ((units -= 4) < 0) break\n bytes.push(\n codePoint >> 0x12 | 0xF0,\n codePoint >> 0xC & 0x3F | 0x80,\n codePoint >> 0x6 & 0x3F | 0x80,\n codePoint & 0x3F | 0x80\n )\n } else {\n throw new Error('Invalid code point')\n }\n }\n\n return bytes\n}\n\nfunction asciiToBytes (str) {\n var byteArray = []\n for (var i = 0; i < str.length; ++i) {\n // Node's code seems to be doing this and not & 0x7F..\n byteArray.push(str.charCodeAt(i) & 0xFF)\n }\n return byteArray\n}\n\nfunction utf16leToBytes (str, units) {\n var c, hi, lo\n var byteArray = []\n for (var i = 0; i < str.length; ++i) {\n if ((units -= 2) < 0) break\n\n c = str.charCodeAt(i)\n hi = c >> 8\n lo = c % 256\n byteArray.push(lo)\n byteArray.push(hi)\n }\n\n return byteArray\n}\n\nfunction base64ToBytes (str) {\n return base64.toByteArray(base64clean(str))\n}\n\nfunction blitBuffer (src, dst, offset, length) {\n for (var i = 0; i < length; ++i) {\n if ((i + offset >= dst.length) || (i >= src.length)) break\n dst[i + offset] = src[i]\n }\n return i\n}\n\nfunction isnan (val) {\n return val !== val // eslint-disable-line no-self-compare\n}\n\n/* WEBPACK VAR INJECTION */}.call(exports, __webpack_require__(9)))\n\n/***/ }),\n/* 39 */,\n/* 40 */,\n/* 41 */,\n/* 42 */,\n/* 43 */\n/***/ (function(module, exports, __webpack_require__) {\n\nvar __WEBPACK_AMD_DEFINE_RESULT__;/*! Hammer.JS - v2.0.7 - 2016-04-22\n * http://hammerjs.github.io/\n *\n * Copyright (c) 2016 Jorik Tangelder;\n * Licensed under the MIT license */\n(function(window, document, exportName, undefined) {\n 'use strict';\n\nvar VENDOR_PREFIXES = ['', 'webkit', 'Moz', 'MS', 'ms', 'o'];\nvar TEST_ELEMENT = document.createElement('div');\n\nvar TYPE_FUNCTION = 'function';\n\nvar round = Math.round;\nvar abs = Math.abs;\nvar now = Date.now;\n\n/**\n * set a timeout with a given scope\n * @param {Function} fn\n * @param {Number} timeout\n * @param {Object} context\n * @returns {number}\n */\nfunction setTimeoutContext(fn, timeout, context) {\n return setTimeout(bindFn(fn, context), timeout);\n}\n\n/**\n * if the argument is an array, we want to execute the fn on each entry\n * if it aint an array we don't want to do a thing.\n * this is used by all the methods that accept a single and array argument.\n * @param {*|Array} arg\n * @param {String} fn\n * @param {Object} [context]\n * @returns {Boolean}\n */\nfunction invokeArrayArg(arg, fn, context) {\n if (Array.isArray(arg)) {\n each(arg, context[fn], context);\n return true;\n }\n return false;\n}\n\n/**\n * walk objects and arrays\n * @param {Object} obj\n * @param {Function} iterator\n * @param {Object} context\n */\nfunction each(obj, iterator, context) {\n var i;\n\n if (!obj) {\n return;\n }\n\n if (obj.forEach) {\n obj.forEach(iterator, context);\n } else if (obj.length !== undefined) {\n i = 0;\n while (i < obj.length) {\n iterator.call(context, obj[i], i, obj);\n i++;\n }\n } else {\n for (i in obj) {\n obj.hasOwnProperty(i) && iterator.call(context, obj[i], i, obj);\n }\n }\n}\n\n/**\n * wrap a method with a deprecation warning and stack trace\n * @param {Function} method\n * @param {String} name\n * @param {String} message\n * @returns {Function} A new function wrapping the supplied method.\n */\nfunction deprecate(method, name, message) {\n var deprecationMessage = 'DEPRECATED METHOD: ' + name + '\\n' + message + ' AT \\n';\n return function() {\n var e = new Error('get-stack-trace');\n var stack = e && e.stack ? e.stack.replace(/^[^\\(]+?[\\n$]/gm, '')\n .replace(/^\\s+at\\s+/gm, '')\n .replace(/^Object.\\s*\\(/gm, '{anonymous}()@') : 'Unknown Stack Trace';\n\n var log = window.console && (window.console.warn || window.console.log);\n if (log) {\n log.call(window.console, deprecationMessage, stack);\n }\n return method.apply(this, arguments);\n };\n}\n\n/**\n * extend object.\n * means that properties in dest will be overwritten by the ones in src.\n * @param {Object} target\n * @param {...Object} objects_to_assign\n * @returns {Object} target\n */\nvar assign;\nif (typeof Object.assign !== 'function') {\n assign = function assign(target) {\n if (target === undefined || target === null) {\n throw new TypeError('Cannot convert undefined or null to object');\n }\n\n var output = Object(target);\n for (var index = 1; index < arguments.length; index++) {\n var source = arguments[index];\n if (source !== undefined && source !== null) {\n for (var nextKey in source) {\n if (source.hasOwnProperty(nextKey)) {\n output[nextKey] = source[nextKey];\n }\n }\n }\n }\n return output;\n };\n} else {\n assign = Object.assign;\n}\n\n/**\n * extend object.\n * means that properties in dest will be overwritten by the ones in src.\n * @param {Object} dest\n * @param {Object} src\n * @param {Boolean} [merge=false]\n * @returns {Object} dest\n */\nvar extend = deprecate(function extend(dest, src, merge) {\n var keys = Object.keys(src);\n var i = 0;\n while (i < keys.length) {\n if (!merge || (merge && dest[keys[i]] === undefined)) {\n dest[keys[i]] = src[keys[i]];\n }\n i++;\n }\n return dest;\n}, 'extend', 'Use `assign`.');\n\n/**\n * merge the values from src in the dest.\n * means that properties that exist in dest will not be overwritten by src\n * @param {Object} dest\n * @param {Object} src\n * @returns {Object} dest\n */\nvar merge = deprecate(function merge(dest, src) {\n return extend(dest, src, true);\n}, 'merge', 'Use `assign`.');\n\n/**\n * simple class inheritance\n * @param {Function} child\n * @param {Function} base\n * @param {Object} [properties]\n */\nfunction inherit(child, base, properties) {\n var baseP = base.prototype,\n childP;\n\n childP = child.prototype = Object.create(baseP);\n childP.constructor = child;\n childP._super = baseP;\n\n if (properties) {\n assign(childP, properties);\n }\n}\n\n/**\n * simple function bind\n * @param {Function} fn\n * @param {Object} context\n * @returns {Function}\n */\nfunction bindFn(fn, context) {\n return function boundFn() {\n return fn.apply(context, arguments);\n };\n}\n\n/**\n * let a boolean value also be a function that must return a boolean\n * this first item in args will be used as the context\n * @param {Boolean|Function} val\n * @param {Array} [args]\n * @returns {Boolean}\n */\nfunction boolOrFn(val, args) {\n if (typeof val == TYPE_FUNCTION) {\n return val.apply(args ? args[0] || undefined : undefined, args);\n }\n return val;\n}\n\n/**\n * use the val2 when val1 is undefined\n * @param {*} val1\n * @param {*} val2\n * @returns {*}\n */\nfunction ifUndefined(val1, val2) {\n return (val1 === undefined) ? val2 : val1;\n}\n\n/**\n * addEventListener with multiple events at once\n * @param {EventTarget} target\n * @param {String} types\n * @param {Function} handler\n */\nfunction addEventListeners(target, types, handler) {\n each(splitStr(types), function(type) {\n target.addEventListener(type, handler, false);\n });\n}\n\n/**\n * removeEventListener with multiple events at once\n * @param {EventTarget} target\n * @param {String} types\n * @param {Function} handler\n */\nfunction removeEventListeners(target, types, handler) {\n each(splitStr(types), function(type) {\n target.removeEventListener(type, handler, false);\n });\n}\n\n/**\n * find if a node is in the given parent\n * @method hasParent\n * @param {HTMLElement} node\n * @param {HTMLElement} parent\n * @return {Boolean} found\n */\nfunction hasParent(node, parent) {\n while (node) {\n if (node == parent) {\n return true;\n }\n node = node.parentNode;\n }\n return false;\n}\n\n/**\n * small indexOf wrapper\n * @param {String} str\n * @param {String} find\n * @returns {Boolean} found\n */\nfunction inStr(str, find) {\n return str.indexOf(find) > -1;\n}\n\n/**\n * split string on whitespace\n * @param {String} str\n * @returns {Array} words\n */\nfunction splitStr(str) {\n return str.trim().split(/\\s+/g);\n}\n\n/**\n * find if a array contains the object using indexOf or a simple polyFill\n * @param {Array} src\n * @param {String} find\n * @param {String} [findByKey]\n * @return {Boolean|Number} false when not found, or the index\n */\nfunction inArray(src, find, findByKey) {\n if (src.indexOf && !findByKey) {\n return src.indexOf(find);\n } else {\n var i = 0;\n while (i < src.length) {\n if ((findByKey && src[i][findByKey] == find) || (!findByKey && src[i] === find)) {\n return i;\n }\n i++;\n }\n return -1;\n }\n}\n\n/**\n * convert array-like objects to real arrays\n * @param {Object} obj\n * @returns {Array}\n */\nfunction toArray(obj) {\n return Array.prototype.slice.call(obj, 0);\n}\n\n/**\n * unique array with objects based on a key (like 'id') or just by the array's value\n * @param {Array} src [{id:1},{id:2},{id:1}]\n * @param {String} [key]\n * @param {Boolean} [sort=False]\n * @returns {Array} [{id:1},{id:2}]\n */\nfunction uniqueArray(src, key, sort) {\n var results = [];\n var values = [];\n var i = 0;\n\n while (i < src.length) {\n var val = key ? src[i][key] : src[i];\n if (inArray(values, val) < 0) {\n results.push(src[i]);\n }\n values[i] = val;\n i++;\n }\n\n if (sort) {\n if (!key) {\n results = results.sort();\n } else {\n results = results.sort(function sortUniqueArray(a, b) {\n return a[key] > b[key];\n });\n }\n }\n\n return results;\n}\n\n/**\n * get the prefixed property\n * @param {Object} obj\n * @param {String} property\n * @returns {String|Undefined} prefixed\n */\nfunction prefixed(obj, property) {\n var prefix, prop;\n var camelProp = property[0].toUpperCase() + property.slice(1);\n\n var i = 0;\n while (i < VENDOR_PREFIXES.length) {\n prefix = VENDOR_PREFIXES[i];\n prop = (prefix) ? prefix + camelProp : property;\n\n if (prop in obj) {\n return prop;\n }\n i++;\n }\n return undefined;\n}\n\n/**\n * get a unique id\n * @returns {number} uniqueId\n */\nvar _uniqueId = 1;\nfunction uniqueId() {\n return _uniqueId++;\n}\n\n/**\n * get the window object of an element\n * @param {HTMLElement} element\n * @returns {DocumentView|Window}\n */\nfunction getWindowForElement(element) {\n var doc = element.ownerDocument || element;\n return (doc.defaultView || doc.parentWindow || window);\n}\n\nvar MOBILE_REGEX = /mobile|tablet|ip(ad|hone|od)|android/i;\n\nvar SUPPORT_TOUCH = ('ontouchstart' in window);\nvar SUPPORT_POINTER_EVENTS = prefixed(window, 'PointerEvent') !== undefined;\nvar SUPPORT_ONLY_TOUCH = SUPPORT_TOUCH && MOBILE_REGEX.test(navigator.userAgent);\n\nvar INPUT_TYPE_TOUCH = 'touch';\nvar INPUT_TYPE_PEN = 'pen';\nvar INPUT_TYPE_MOUSE = 'mouse';\nvar INPUT_TYPE_KINECT = 'kinect';\n\nvar COMPUTE_INTERVAL = 25;\n\nvar INPUT_START = 1;\nvar INPUT_MOVE = 2;\nvar INPUT_END = 4;\nvar INPUT_CANCEL = 8;\n\nvar DIRECTION_NONE = 1;\nvar DIRECTION_LEFT = 2;\nvar DIRECTION_RIGHT = 4;\nvar DIRECTION_UP = 8;\nvar DIRECTION_DOWN = 16;\n\nvar DIRECTION_HORIZONTAL = DIRECTION_LEFT | DIRECTION_RIGHT;\nvar DIRECTION_VERTICAL = DIRECTION_UP | DIRECTION_DOWN;\nvar DIRECTION_ALL = DIRECTION_HORIZONTAL | DIRECTION_VERTICAL;\n\nvar PROPS_XY = ['x', 'y'];\nvar PROPS_CLIENT_XY = ['clientX', 'clientY'];\n\n/**\n * create new input type manager\n * @param {Manager} manager\n * @param {Function} callback\n * @returns {Input}\n * @constructor\n */\nfunction Input(manager, callback) {\n var self = this;\n this.manager = manager;\n this.callback = callback;\n this.element = manager.element;\n this.target = manager.options.inputTarget;\n\n // smaller wrapper around the handler, for the scope and the enabled state of the manager,\n // so when disabled the input events are completely bypassed.\n this.domHandler = function(ev) {\n if (boolOrFn(manager.options.enable, [manager])) {\n self.handler(ev);\n }\n };\n\n this.init();\n\n}\n\nInput.prototype = {\n /**\n * should handle the inputEvent data and trigger the callback\n * @virtual\n */\n handler: function() { },\n\n /**\n * bind the events\n */\n init: function() {\n this.evEl && addEventListeners(this.element, this.evEl, this.domHandler);\n this.evTarget && addEventListeners(this.target, this.evTarget, this.domHandler);\n this.evWin && addEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);\n },\n\n /**\n * unbind the events\n */\n destroy: function() {\n this.evEl && removeEventListeners(this.element, this.evEl, this.domHandler);\n this.evTarget && removeEventListeners(this.target, this.evTarget, this.domHandler);\n this.evWin && removeEventListeners(getWindowForElement(this.element), this.evWin, this.domHandler);\n }\n};\n\n/**\n * create new input type manager\n * called by the Manager constructor\n * @param {Hammer} manager\n * @returns {Input}\n */\nfunction createInputInstance(manager) {\n var Type;\n var inputClass = manager.options.inputClass;\n\n if (inputClass) {\n Type = inputClass;\n } else if (SUPPORT_POINTER_EVENTS) {\n Type = PointerEventInput;\n } else if (SUPPORT_ONLY_TOUCH) {\n Type = TouchInput;\n } else if (!SUPPORT_TOUCH) {\n Type = MouseInput;\n } else {\n Type = TouchMouseInput;\n }\n return new (Type)(manager, inputHandler);\n}\n\n/**\n * handle input events\n * @param {Manager} manager\n * @param {String} eventType\n * @param {Object} input\n */\nfunction inputHandler(manager, eventType, input) {\n var pointersLen = input.pointers.length;\n var changedPointersLen = input.changedPointers.length;\n var isFirst = (eventType & INPUT_START && (pointersLen - changedPointersLen === 0));\n var isFinal = (eventType & (INPUT_END | INPUT_CANCEL) && (pointersLen - changedPointersLen === 0));\n\n input.isFirst = !!isFirst;\n input.isFinal = !!isFinal;\n\n if (isFirst) {\n manager.session = {};\n }\n\n // source event is the normalized value of the domEvents\n // like 'touchstart, mouseup, pointerdown'\n input.eventType = eventType;\n\n // compute scale, rotation etc\n computeInputData(manager, input);\n\n // emit secret event\n manager.emit('hammer.input', input);\n\n manager.recognize(input);\n manager.session.prevInput = input;\n}\n\n/**\n * extend the data with some usable properties like scale, rotate, velocity etc\n * @param {Object} manager\n * @param {Object} input\n */\nfunction computeInputData(manager, input) {\n var session = manager.session;\n var pointers = input.pointers;\n var pointersLength = pointers.length;\n\n // store the first input to calculate the distance and direction\n if (!session.firstInput) {\n session.firstInput = simpleCloneInputData(input);\n }\n\n // to compute scale and rotation we need to store the multiple touches\n if (pointersLength > 1 && !session.firstMultiple) {\n session.firstMultiple = simpleCloneInputData(input);\n } else if (pointersLength === 1) {\n session.firstMultiple = false;\n }\n\n var firstInput = session.firstInput;\n var firstMultiple = session.firstMultiple;\n var offsetCenter = firstMultiple ? firstMultiple.center : firstInput.center;\n\n var center = input.center = getCenter(pointers);\n input.timeStamp = now();\n input.deltaTime = input.timeStamp - firstInput.timeStamp;\n\n input.angle = getAngle(offsetCenter, center);\n input.distance = getDistance(offsetCenter, center);\n\n computeDeltaXY(session, input);\n input.offsetDirection = getDirection(input.deltaX, input.deltaY);\n\n var overallVelocity = getVelocity(input.deltaTime, input.deltaX, input.deltaY);\n input.overallVelocityX = overallVelocity.x;\n input.overallVelocityY = overallVelocity.y;\n input.overallVelocity = (abs(overallVelocity.x) > abs(overallVelocity.y)) ? overallVelocity.x : overallVelocity.y;\n\n input.scale = firstMultiple ? getScale(firstMultiple.pointers, pointers) : 1;\n input.rotation = firstMultiple ? getRotation(firstMultiple.pointers, pointers) : 0;\n\n input.maxPointers = !session.prevInput ? input.pointers.length : ((input.pointers.length >\n session.prevInput.maxPointers) ? input.pointers.length : session.prevInput.maxPointers);\n\n computeIntervalInputData(session, input);\n\n // find the correct target\n var target = manager.element;\n if (hasParent(input.srcEvent.target, target)) {\n target = input.srcEvent.target;\n }\n input.target = target;\n}\n\nfunction computeDeltaXY(session, input) {\n var center = input.center;\n var offset = session.offsetDelta || {};\n var prevDelta = session.prevDelta || {};\n var prevInput = session.prevInput || {};\n\n if (input.eventType === INPUT_START || prevInput.eventType === INPUT_END) {\n prevDelta = session.prevDelta = {\n x: prevInput.deltaX || 0,\n y: prevInput.deltaY || 0\n };\n\n offset = session.offsetDelta = {\n x: center.x,\n y: center.y\n };\n }\n\n input.deltaX = prevDelta.x + (center.x - offset.x);\n input.deltaY = prevDelta.y + (center.y - offset.y);\n}\n\n/**\n * velocity is calculated every x ms\n * @param {Object} session\n * @param {Object} input\n */\nfunction computeIntervalInputData(session, input) {\n var last = session.lastInterval || input,\n deltaTime = input.timeStamp - last.timeStamp,\n velocity, velocityX, velocityY, direction;\n\n if (input.eventType != INPUT_CANCEL && (deltaTime > COMPUTE_INTERVAL || last.velocity === undefined)) {\n var deltaX = input.deltaX - last.deltaX;\n var deltaY = input.deltaY - last.deltaY;\n\n var v = getVelocity(deltaTime, deltaX, deltaY);\n velocityX = v.x;\n velocityY = v.y;\n velocity = (abs(v.x) > abs(v.y)) ? v.x : v.y;\n direction = getDirection(deltaX, deltaY);\n\n session.lastInterval = input;\n } else {\n // use latest velocity info if it doesn't overtake a minimum period\n velocity = last.velocity;\n velocityX = last.velocityX;\n velocityY = last.velocityY;\n direction = last.direction;\n }\n\n input.velocity = velocity;\n input.velocityX = velocityX;\n input.velocityY = velocityY;\n input.direction = direction;\n}\n\n/**\n * create a simple clone from the input used for storage of firstInput and firstMultiple\n * @param {Object} input\n * @returns {Object} clonedInputData\n */\nfunction simpleCloneInputData(input) {\n // make a simple copy of the pointers because we will get a reference if we don't\n // we only need clientXY for the calculations\n var pointers = [];\n var i = 0;\n while (i < input.pointers.length) {\n pointers[i] = {\n clientX: round(input.pointers[i].clientX),\n clientY: round(input.pointers[i].clientY)\n };\n i++;\n }\n\n return {\n timeStamp: now(),\n pointers: pointers,\n center: getCenter(pointers),\n deltaX: input.deltaX,\n deltaY: input.deltaY\n };\n}\n\n/**\n * get the center of all the pointers\n * @param {Array} pointers\n * @return {Object} center contains `x` and `y` properties\n */\nfunction getCenter(pointers) {\n var pointersLength = pointers.length;\n\n // no need to loop when only one touch\n if (pointersLength === 1) {\n return {\n x: round(pointers[0].clientX),\n y: round(pointers[0].clientY)\n };\n }\n\n var x = 0, y = 0, i = 0;\n while (i < pointersLength) {\n x += pointers[i].clientX;\n y += pointers[i].clientY;\n i++;\n }\n\n return {\n x: round(x / pointersLength),\n y: round(y / pointersLength)\n };\n}\n\n/**\n * calculate the velocity between two points. unit is in px per ms.\n * @param {Number} deltaTime\n * @param {Number} x\n * @param {Number} y\n * @return {Object} velocity `x` and `y`\n */\nfunction getVelocity(deltaTime, x, y) {\n return {\n x: x / deltaTime || 0,\n y: y / deltaTime || 0\n };\n}\n\n/**\n * get the direction between two points\n * @param {Number} x\n * @param {Number} y\n * @return {Number} direction\n */\nfunction getDirection(x, y) {\n if (x === y) {\n return DIRECTION_NONE;\n }\n\n if (abs(x) >= abs(y)) {\n return x < 0 ? DIRECTION_LEFT : DIRECTION_RIGHT;\n }\n return y < 0 ? DIRECTION_UP : DIRECTION_DOWN;\n}\n\n/**\n * calculate the absolute distance between two points\n * @param {Object} p1 {x, y}\n * @param {Object} p2 {x, y}\n * @param {Array} [props] containing x and y keys\n * @return {Number} distance\n */\nfunction getDistance(p1, p2, props) {\n if (!props) {\n props = PROPS_XY;\n }\n var x = p2[props[0]] - p1[props[0]],\n y = p2[props[1]] - p1[props[1]];\n\n return Math.sqrt((x * x) + (y * y));\n}\n\n/**\n * calculate the angle between two coordinates\n * @param {Object} p1\n * @param {Object} p2\n * @param {Array} [props] containing x and y keys\n * @return {Number} angle\n */\nfunction getAngle(p1, p2, props) {\n if (!props) {\n props = PROPS_XY;\n }\n var x = p2[props[0]] - p1[props[0]],\n y = p2[props[1]] - p1[props[1]];\n return Math.atan2(y, x) * 180 / Math.PI;\n}\n\n/**\n * calculate the rotation degrees between two pointersets\n * @param {Array} start array of pointers\n * @param {Array} end array of pointers\n * @return {Number} rotation\n */\nfunction getRotation(start, end) {\n return getAngle(end[1], end[0], PROPS_CLIENT_XY) + getAngle(start[1], start[0], PROPS_CLIENT_XY);\n}\n\n/**\n * calculate the scale factor between two pointersets\n * no scale is 1, and goes down to 0 when pinched together, and bigger when pinched out\n * @param {Array} start array of pointers\n * @param {Array} end array of pointers\n * @return {Number} scale\n */\nfunction getScale(start, end) {\n return getDistance(end[0], end[1], PROPS_CLIENT_XY) / getDistance(start[0], start[1], PROPS_CLIENT_XY);\n}\n\nvar MOUSE_INPUT_MAP = {\n mousedown: INPUT_START,\n mousemove: INPUT_MOVE,\n mouseup: INPUT_END\n};\n\nvar MOUSE_ELEMENT_EVENTS = 'mousedown';\nvar MOUSE_WINDOW_EVENTS = 'mousemove mouseup';\n\n/**\n * Mouse events input\n * @constructor\n * @extends Input\n */\nfunction MouseInput() {\n this.evEl = MOUSE_ELEMENT_EVENTS;\n this.evWin = MOUSE_WINDOW_EVENTS;\n\n this.pressed = false; // mousedown state\n\n Input.apply(this, arguments);\n}\n\ninherit(MouseInput, Input, {\n /**\n * handle mouse events\n * @param {Object} ev\n */\n handler: function MEhandler(ev) {\n var eventType = MOUSE_INPUT_MAP[ev.type];\n\n // on start we want to have the left mouse button down\n if (eventType & INPUT_START && ev.button === 0) {\n this.pressed = true;\n }\n\n if (eventType & INPUT_MOVE && ev.which !== 1) {\n eventType = INPUT_END;\n }\n\n // mouse must be down\n if (!this.pressed) {\n return;\n }\n\n if (eventType & INPUT_END) {\n this.pressed = false;\n }\n\n this.callback(this.manager, eventType, {\n pointers: [ev],\n changedPointers: [ev],\n pointerType: INPUT_TYPE_MOUSE,\n srcEvent: ev\n });\n }\n});\n\nvar POINTER_INPUT_MAP = {\n pointerdown: INPUT_START,\n pointermove: INPUT_MOVE,\n pointerup: INPUT_END,\n pointercancel: INPUT_CANCEL,\n pointerout: INPUT_CANCEL\n};\n\n// in IE10 the pointer types is defined as an enum\nvar IE10_POINTER_TYPE_ENUM = {\n 2: INPUT_TYPE_TOUCH,\n 3: INPUT_TYPE_PEN,\n 4: INPUT_TYPE_MOUSE,\n 5: INPUT_TYPE_KINECT // see https://twitter.com/jacobrossi/status/480596438489890816\n};\n\nvar POINTER_ELEMENT_EVENTS = 'pointerdown';\nvar POINTER_WINDOW_EVENTS = 'pointermove pointerup pointercancel';\n\n// IE10 has prefixed support, and case-sensitive\nif (window.MSPointerEvent && !window.PointerEvent) {\n POINTER_ELEMENT_EVENTS = 'MSPointerDown';\n POINTER_WINDOW_EVENTS = 'MSPointerMove MSPointerUp MSPointerCancel';\n}\n\n/**\n * Pointer events input\n * @constructor\n * @extends Input\n */\nfunction PointerEventInput() {\n this.evEl = POINTER_ELEMENT_EVENTS;\n this.evWin = POINTER_WINDOW_EVENTS;\n\n Input.apply(this, arguments);\n\n this.store = (this.manager.session.pointerEvents = []);\n}\n\ninherit(PointerEventInput, Input, {\n /**\n * handle mouse events\n * @param {Object} ev\n */\n handler: function PEhandler(ev) {\n var store = this.store;\n var removePointer = false;\n\n var eventTypeNormalized = ev.type.toLowerCase().replace('ms', '');\n var eventType = POINTER_INPUT_MAP[eventTypeNormalized];\n var pointerType = IE10_POINTER_TYPE_ENUM[ev.pointerType] || ev.pointerType;\n\n var isTouch = (pointerType == INPUT_TYPE_TOUCH);\n\n // get index of the event in the store\n var storeIndex = inArray(store, ev.pointerId, 'pointerId');\n\n // start and mouse must be down\n if (eventType & INPUT_START && (ev.button === 0 || isTouch)) {\n if (storeIndex < 0) {\n store.push(ev);\n storeIndex = store.length - 1;\n }\n } else if (eventType & (INPUT_END | INPUT_CANCEL)) {\n removePointer = true;\n }\n\n // it not found, so the pointer hasn't been down (so it's probably a hover)\n if (storeIndex < 0) {\n return;\n }\n\n // update the event in the store\n store[storeIndex] = ev;\n\n this.callback(this.manager, eventType, {\n pointers: store,\n changedPointers: [ev],\n pointerType: pointerType,\n srcEvent: ev\n });\n\n if (removePointer) {\n // remove from the store\n store.splice(storeIndex, 1);\n }\n }\n});\n\nvar SINGLE_TOUCH_INPUT_MAP = {\n touchstart: INPUT_START,\n touchmove: INPUT_MOVE,\n touchend: INPUT_END,\n touchcancel: INPUT_CANCEL\n};\n\nvar SINGLE_TOUCH_TARGET_EVENTS = 'touchstart';\nvar SINGLE_TOUCH_WINDOW_EVENTS = 'touchstart touchmove touchend touchcancel';\n\n/**\n * Touch events input\n * @constructor\n * @extends Input\n */\nfunction SingleTouchInput() {\n this.evTarget = SINGLE_TOUCH_TARGET_EVENTS;\n this.evWin = SINGLE_TOUCH_WINDOW_EVENTS;\n this.started = false;\n\n Input.apply(this, arguments);\n}\n\ninherit(SingleTouchInput, Input, {\n handler: function TEhandler(ev) {\n var type = SINGLE_TOUCH_INPUT_MAP[ev.type];\n\n // should we handle the touch events?\n if (type === INPUT_START) {\n this.started = true;\n }\n\n if (!this.started) {\n return;\n }\n\n var touches = normalizeSingleTouches.call(this, ev, type);\n\n // when done, reset the started state\n if (type & (INPUT_END | INPUT_CANCEL) && touches[0].length - touches[1].length === 0) {\n this.started = false;\n }\n\n this.callback(this.manager, type, {\n pointers: touches[0],\n changedPointers: touches[1],\n pointerType: INPUT_TYPE_TOUCH,\n srcEvent: ev\n });\n }\n});\n\n/**\n * @this {TouchInput}\n * @param {Object} ev\n * @param {Number} type flag\n * @returns {undefined|Array} [all, changed]\n */\nfunction normalizeSingleTouches(ev, type) {\n var all = toArray(ev.touches);\n var changed = toArray(ev.changedTouches);\n\n if (type & (INPUT_END | INPUT_CANCEL)) {\n all = uniqueArray(all.concat(changed), 'identifier', true);\n }\n\n return [all, changed];\n}\n\nvar TOUCH_INPUT_MAP = {\n touchstart: INPUT_START,\n touchmove: INPUT_MOVE,\n touchend: INPUT_END,\n touchcancel: INPUT_CANCEL\n};\n\nvar TOUCH_TARGET_EVENTS = 'touchstart touchmove touchend touchcancel';\n\n/**\n * Multi-user touch events input\n * @constructor\n * @extends Input\n */\nfunction TouchInput() {\n this.evTarget = TOUCH_TARGET_EVENTS;\n this.targetIds = {};\n\n Input.apply(this, arguments);\n}\n\ninherit(TouchInput, Input, {\n handler: function MTEhandler(ev) {\n var type = TOUCH_INPUT_MAP[ev.type];\n var touches = getTouches.call(this, ev, type);\n if (!touches) {\n return;\n }\n\n this.callback(this.manager, type, {\n pointers: touches[0],\n changedPointers: touches[1],\n pointerType: INPUT_TYPE_TOUCH,\n srcEvent: ev\n });\n }\n});\n\n/**\n * @this {TouchInput}\n * @param {Object} ev\n * @param {Number} type flag\n * @returns {undefined|Array} [all, changed]\n */\nfunction getTouches(ev, type) {\n var allTouches = toArray(ev.touches);\n var targetIds = this.targetIds;\n\n // when there is only one touch, the process can be simplified\n if (type & (INPUT_START | INPUT_MOVE) && allTouches.length === 1) {\n targetIds[allTouches[0].identifier] = true;\n return [allTouches, allTouches];\n }\n\n var i,\n targetTouches,\n changedTouches = toArray(ev.changedTouches),\n changedTargetTouches = [],\n target = this.target;\n\n // get target touches from touches\n targetTouches = allTouches.filter(function(touch) {\n return hasParent(touch.target, target);\n });\n\n // collect touches\n if (type === INPUT_START) {\n i = 0;\n while (i < targetTouches.length) {\n targetIds[targetTouches[i].identifier] = true;\n i++;\n }\n }\n\n // filter changed touches to only contain touches that exist in the collected target ids\n i = 0;\n while (i < changedTouches.length) {\n if (targetIds[changedTouches[i].identifier]) {\n changedTargetTouches.push(changedTouches[i]);\n }\n\n // cleanup removed touches\n if (type & (INPUT_END | INPUT_CANCEL)) {\n delete targetIds[changedTouches[i].identifier];\n }\n i++;\n }\n\n if (!changedTargetTouches.length) {\n return;\n }\n\n return [\n // merge targetTouches with changedTargetTouches so it contains ALL touches, including 'end' and 'cancel'\n uniqueArray(targetTouches.concat(changedTargetTouches), 'identifier', true),\n changedTargetTouches\n ];\n}\n\n/**\n * Combined touch and mouse input\n *\n * Touch has a higher priority then mouse, and while touching no mouse events are allowed.\n * This because touch devices also emit mouse events while doing a touch.\n *\n * @constructor\n * @extends Input\n */\n\nvar DEDUP_TIMEOUT = 2500;\nvar DEDUP_DISTANCE = 25;\n\nfunction TouchMouseInput() {\n Input.apply(this, arguments);\n\n var handler = bindFn(this.handler, this);\n this.touch = new TouchInput(this.manager, handler);\n this.mouse = new MouseInput(this.manager, handler);\n\n this.primaryTouch = null;\n this.lastTouches = [];\n}\n\ninherit(TouchMouseInput, Input, {\n /**\n * handle mouse and touch events\n * @param {Hammer} manager\n * @param {String} inputEvent\n * @param {Object} inputData\n */\n handler: function TMEhandler(manager, inputEvent, inputData) {\n var isTouch = (inputData.pointerType == INPUT_TYPE_TOUCH),\n isMouse = (inputData.pointerType == INPUT_TYPE_MOUSE);\n\n if (isMouse && inputData.sourceCapabilities && inputData.sourceCapabilities.firesTouchEvents) {\n return;\n }\n\n // when we're in a touch event, record touches to de-dupe synthetic mouse event\n if (isTouch) {\n recordTouches.call(this, inputEvent, inputData);\n } else if (isMouse && isSyntheticEvent.call(this, inputData)) {\n return;\n }\n\n this.callback(manager, inputEvent, inputData);\n },\n\n /**\n * remove the event listeners\n */\n destroy: function destroy() {\n this.touch.destroy();\n this.mouse.destroy();\n }\n});\n\nfunction recordTouches(eventType, eventData) {\n if (eventType & INPUT_START) {\n this.primaryTouch = eventData.changedPointers[0].identifier;\n setLastTouch.call(this, eventData);\n } else if (eventType & (INPUT_END | INPUT_CANCEL)) {\n setLastTouch.call(this, eventData);\n }\n}\n\nfunction setLastTouch(eventData) {\n var touch = eventData.changedPointers[0];\n\n if (touch.identifier === this.primaryTouch) {\n var lastTouch = {x: touch.clientX, y: touch.clientY};\n this.lastTouches.push(lastTouch);\n var lts = this.lastTouches;\n var removeLastTouch = function() {\n var i = lts.indexOf(lastTouch);\n if (i > -1) {\n lts.splice(i, 1);\n }\n };\n setTimeout(removeLastTouch, DEDUP_TIMEOUT);\n }\n}\n\nfunction isSyntheticEvent(eventData) {\n var x = eventData.srcEvent.clientX, y = eventData.srcEvent.clientY;\n for (var i = 0; i < this.lastTouches.length; i++) {\n var t = this.lastTouches[i];\n var dx = Math.abs(x - t.x), dy = Math.abs(y - t.y);\n if (dx <= DEDUP_DISTANCE && dy <= DEDUP_DISTANCE) {\n return true;\n }\n }\n return false;\n}\n\nvar PREFIXED_TOUCH_ACTION = prefixed(TEST_ELEMENT.style, 'touchAction');\nvar NATIVE_TOUCH_ACTION = PREFIXED_TOUCH_ACTION !== undefined;\n\n// magical touchAction value\nvar TOUCH_ACTION_COMPUTE = 'compute';\nvar TOUCH_ACTION_AUTO = 'auto';\nvar TOUCH_ACTION_MANIPULATION = 'manipulation'; // not implemented\nvar TOUCH_ACTION_NONE = 'none';\nvar TOUCH_ACTION_PAN_X = 'pan-x';\nvar TOUCH_ACTION_PAN_Y = 'pan-y';\nvar TOUCH_ACTION_MAP = getTouchActionProps();\n\n/**\n * Touch Action\n * sets the touchAction property or uses the js alternative\n * @param {Manager} manager\n * @param {String} value\n * @constructor\n */\nfunction TouchAction(manager, value) {\n this.manager = manager;\n this.set(value);\n}\n\nTouchAction.prototype = {\n /**\n * set the touchAction value on the element or enable the polyfill\n * @param {String} value\n */\n set: function(value) {\n // find out the touch-action by the event handlers\n if (value == TOUCH_ACTION_COMPUTE) {\n value = this.compute();\n }\n\n if (NATIVE_TOUCH_ACTION && this.manager.element.style && TOUCH_ACTION_MAP[value]) {\n this.manager.element.style[PREFIXED_TOUCH_ACTION] = value;\n }\n this.actions = value.toLowerCase().trim();\n },\n\n /**\n * just re-set the touchAction value\n */\n update: function() {\n this.set(this.manager.options.touchAction);\n },\n\n /**\n * compute the value for the touchAction property based on the recognizer's settings\n * @returns {String} value\n */\n compute: function() {\n var actions = [];\n each(this.manager.recognizers, function(recognizer) {\n if (boolOrFn(recognizer.options.enable, [recognizer])) {\n actions = actions.concat(recognizer.getTouchAction());\n }\n });\n return cleanTouchActions(actions.join(' '));\n },\n\n /**\n * this method is called on each input cycle and provides the preventing of the browser behavior\n * @param {Object} input\n */\n preventDefaults: function(input) {\n var srcEvent = input.srcEvent;\n var direction = input.offsetDirection;\n\n // if the touch action did prevented once this session\n if (this.manager.session.prevented) {\n srcEvent.preventDefault();\n return;\n }\n\n var actions = this.actions;\n var hasNone = inStr(actions, TOUCH_ACTION_NONE) && !TOUCH_ACTION_MAP[TOUCH_ACTION_NONE];\n var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_Y];\n var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X) && !TOUCH_ACTION_MAP[TOUCH_ACTION_PAN_X];\n\n if (hasNone) {\n //do not prevent defaults if this is a tap gesture\n\n var isTapPointer = input.pointers.length === 1;\n var isTapMovement = input.distance < 2;\n var isTapTouchTime = input.deltaTime < 250;\n\n if (isTapPointer && isTapMovement && isTapTouchTime) {\n return;\n }\n }\n\n if (hasPanX && hasPanY) {\n // `pan-x pan-y` means browser handles all scrolling/panning, do not prevent\n return;\n }\n\n if (hasNone ||\n (hasPanY && direction & DIRECTION_HORIZONTAL) ||\n (hasPanX && direction & DIRECTION_VERTICAL)) {\n return this.preventSrc(srcEvent);\n }\n },\n\n /**\n * call preventDefault to prevent the browser's default behavior (scrolling in most cases)\n * @param {Object} srcEvent\n */\n preventSrc: function(srcEvent) {\n this.manager.session.prevented = true;\n srcEvent.preventDefault();\n }\n};\n\n/**\n * when the touchActions are collected they are not a valid value, so we need to clean things up. *\n * @param {String} actions\n * @returns {*}\n */\nfunction cleanTouchActions(actions) {\n // none\n if (inStr(actions, TOUCH_ACTION_NONE)) {\n return TOUCH_ACTION_NONE;\n }\n\n var hasPanX = inStr(actions, TOUCH_ACTION_PAN_X);\n var hasPanY = inStr(actions, TOUCH_ACTION_PAN_Y);\n\n // if both pan-x and pan-y are set (different recognizers\n // for different directions, e.g. horizontal pan but vertical swipe?)\n // we need none (as otherwise with pan-x pan-y combined none of these\n // recognizers will work, since the browser would handle all panning\n if (hasPanX && hasPanY) {\n return TOUCH_ACTION_NONE;\n }\n\n // pan-x OR pan-y\n if (hasPanX || hasPanY) {\n return hasPanX ? TOUCH_ACTION_PAN_X : TOUCH_ACTION_PAN_Y;\n }\n\n // manipulation\n if (inStr(actions, TOUCH_ACTION_MANIPULATION)) {\n return TOUCH_ACTION_MANIPULATION;\n }\n\n return TOUCH_ACTION_AUTO;\n}\n\nfunction getTouchActionProps() {\n if (!NATIVE_TOUCH_ACTION) {\n return false;\n }\n var touchMap = {};\n var cssSupports = window.CSS && window.CSS.supports;\n ['auto', 'manipulation', 'pan-y', 'pan-x', 'pan-x pan-y', 'none'].forEach(function(val) {\n\n // If css.supports is not supported but there is native touch-action assume it supports\n // all values. This is the case for IE 10 and 11.\n touchMap[val] = cssSupports ? window.CSS.supports('touch-action', val) : true;\n });\n return touchMap;\n}\n\n/**\n * Recognizer flow explained; *\n * All recognizers have the initial state of POSSIBLE when a input session starts.\n * The definition of a input session is from the first input until the last input, with all it's movement in it. *\n * Example session for mouse-input: mousedown -> mousemove -> mouseup\n *\n * On each recognizing cycle (see Manager.recognize) the .recognize() method is executed\n * which determines with state it should be.\n *\n * If the recognizer has the state FAILED, CANCELLED or RECOGNIZED (equals ENDED), it is reset to\n * POSSIBLE to give it another change on the next cycle.\n *\n * Possible\n * |\n * +-----+---------------+\n * | |\n * +-----+-----+ |\n * | | |\n * Failed Cancelled |\n * +-------+------+\n * | |\n * Recognized Began\n * |\n * Changed\n * |\n * Ended/Recognized\n */\nvar STATE_POSSIBLE = 1;\nvar STATE_BEGAN = 2;\nvar STATE_CHANGED = 4;\nvar STATE_ENDED = 8;\nvar STATE_RECOGNIZED = STATE_ENDED;\nvar STATE_CANCELLED = 16;\nvar STATE_FAILED = 32;\n\n/**\n * Recognizer\n * Every recognizer needs to extend from this class.\n * @constructor\n * @param {Object} options\n */\nfunction Recognizer(options) {\n this.options = assign({}, this.defaults, options || {});\n\n this.id = uniqueId();\n\n this.manager = null;\n\n // default is enable true\n this.options.enable = ifUndefined(this.options.enable, true);\n\n this.state = STATE_POSSIBLE;\n\n this.simultaneous = {};\n this.requireFail = [];\n}\n\nRecognizer.prototype = {\n /**\n * @virtual\n * @type {Object}\n */\n defaults: {},\n\n /**\n * set options\n * @param {Object} options\n * @return {Recognizer}\n */\n set: function(options) {\n assign(this.options, options);\n\n // also update the touchAction, in case something changed about the directions/enabled state\n this.manager && this.manager.touchAction.update();\n return this;\n },\n\n /**\n * recognize simultaneous with an other recognizer.\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n recognizeWith: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'recognizeWith', this)) {\n return this;\n }\n\n var simultaneous = this.simultaneous;\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n if (!simultaneous[otherRecognizer.id]) {\n simultaneous[otherRecognizer.id] = otherRecognizer;\n otherRecognizer.recognizeWith(this);\n }\n return this;\n },\n\n /**\n * drop the simultaneous link. it doesnt remove the link on the other recognizer.\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n dropRecognizeWith: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'dropRecognizeWith', this)) {\n return this;\n }\n\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n delete this.simultaneous[otherRecognizer.id];\n return this;\n },\n\n /**\n * recognizer can only run when an other is failing\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n requireFailure: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'requireFailure', this)) {\n return this;\n }\n\n var requireFail = this.requireFail;\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n if (inArray(requireFail, otherRecognizer) === -1) {\n requireFail.push(otherRecognizer);\n otherRecognizer.requireFailure(this);\n }\n return this;\n },\n\n /**\n * drop the requireFailure link. it does not remove the link on the other recognizer.\n * @param {Recognizer} otherRecognizer\n * @returns {Recognizer} this\n */\n dropRequireFailure: function(otherRecognizer) {\n if (invokeArrayArg(otherRecognizer, 'dropRequireFailure', this)) {\n return this;\n }\n\n otherRecognizer = getRecognizerByNameIfManager(otherRecognizer, this);\n var index = inArray(this.requireFail, otherRecognizer);\n if (index > -1) {\n this.requireFail.splice(index, 1);\n }\n return this;\n },\n\n /**\n * has require failures boolean\n * @returns {boolean}\n */\n hasRequireFailures: function() {\n return this.requireFail.length > 0;\n },\n\n /**\n * if the recognizer can recognize simultaneous with an other recognizer\n * @param {Recognizer} otherRecognizer\n * @returns {Boolean}\n */\n canRecognizeWith: function(otherRecognizer) {\n return !!this.simultaneous[otherRecognizer.id];\n },\n\n /**\n * You should use `tryEmit` instead of `emit` directly to check\n * that all the needed recognizers has failed before emitting.\n * @param {Object} input\n */\n emit: function(input) {\n var self = this;\n var state = this.state;\n\n function emit(event) {\n self.manager.emit(event, input);\n }\n\n // 'panstart' and 'panmove'\n if (state < STATE_ENDED) {\n emit(self.options.event + stateStr(state));\n }\n\n emit(self.options.event); // simple 'eventName' events\n\n if (input.additionalEvent) { // additional event(panleft, panright, pinchin, pinchout...)\n emit(input.additionalEvent);\n }\n\n // panend and pancancel\n if (state >= STATE_ENDED) {\n emit(self.options.event + stateStr(state));\n }\n },\n\n /**\n * Check that all the require failure recognizers has failed,\n * if true, it emits a gesture event,\n * otherwise, setup the state to FAILED.\n * @param {Object} input\n */\n tryEmit: function(input) {\n if (this.canEmit()) {\n return this.emit(input);\n }\n // it's failing anyway\n this.state = STATE_FAILED;\n },\n\n /**\n * can we emit?\n * @returns {boolean}\n */\n canEmit: function() {\n var i = 0;\n while (i < this.requireFail.length) {\n if (!(this.requireFail[i].state & (STATE_FAILED | STATE_POSSIBLE))) {\n return false;\n }\n i++;\n }\n return true;\n },\n\n /**\n * update the recognizer\n * @param {Object} inputData\n */\n recognize: function(inputData) {\n // make a new copy of the inputData\n // so we can change the inputData without messing up the other recognizers\n var inputDataClone = assign({}, inputData);\n\n // is is enabled and allow recognizing?\n if (!boolOrFn(this.options.enable, [this, inputDataClone])) {\n this.reset();\n this.state = STATE_FAILED;\n return;\n }\n\n // reset when we've reached the end\n if (this.state & (STATE_RECOGNIZED | STATE_CANCELLED | STATE_FAILED)) {\n this.state = STATE_POSSIBLE;\n }\n\n this.state = this.process(inputDataClone);\n\n // the recognizer has recognized a gesture\n // so trigger an event\n if (this.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED | STATE_CANCELLED)) {\n this.tryEmit(inputDataClone);\n }\n },\n\n /**\n * return the state of the recognizer\n * the actual recognizing happens in this method\n * @virtual\n * @param {Object} inputData\n * @returns {Const} STATE\n */\n process: function(inputData) { }, // jshint ignore:line\n\n /**\n * return the preferred touch-action\n * @virtual\n * @returns {Array}\n */\n getTouchAction: function() { },\n\n /**\n * called when the gesture isn't allowed to recognize\n * like when another is being recognized or it is disabled\n * @virtual\n */\n reset: function() { }\n};\n\n/**\n * get a usable string, used as event postfix\n * @param {Const} state\n * @returns {String} state\n */\nfunction stateStr(state) {\n if (state & STATE_CANCELLED) {\n return 'cancel';\n } else if (state & STATE_ENDED) {\n return 'end';\n } else if (state & STATE_CHANGED) {\n return 'move';\n } else if (state & STATE_BEGAN) {\n return 'start';\n }\n return '';\n}\n\n/**\n * direction cons to string\n * @param {Const} direction\n * @returns {String}\n */\nfunction directionStr(direction) {\n if (direction == DIRECTION_DOWN) {\n return 'down';\n } else if (direction == DIRECTION_UP) {\n return 'up';\n } else if (direction == DIRECTION_LEFT) {\n return 'left';\n } else if (direction == DIRECTION_RIGHT) {\n return 'right';\n }\n return '';\n}\n\n/**\n * get a recognizer by name if it is bound to a manager\n * @param {Recognizer|String} otherRecognizer\n * @param {Recognizer} recognizer\n * @returns {Recognizer}\n */\nfunction getRecognizerByNameIfManager(otherRecognizer, recognizer) {\n var manager = recognizer.manager;\n if (manager) {\n return manager.get(otherRecognizer);\n }\n return otherRecognizer;\n}\n\n/**\n * This recognizer is just used as a base for the simple attribute recognizers.\n * @constructor\n * @extends Recognizer\n */\nfunction AttrRecognizer() {\n Recognizer.apply(this, arguments);\n}\n\ninherit(AttrRecognizer, Recognizer, {\n /**\n * @namespace\n * @memberof AttrRecognizer\n */\n defaults: {\n /**\n * @type {Number}\n * @default 1\n */\n pointers: 1\n },\n\n /**\n * Used to check if it the recognizer receives valid input, like input.distance > 10.\n * @memberof AttrRecognizer\n * @param {Object} input\n * @returns {Boolean} recognized\n */\n attrTest: function(input) {\n var optionPointers = this.options.pointers;\n return optionPointers === 0 || input.pointers.length === optionPointers;\n },\n\n /**\n * Process the input and return the state for the recognizer\n * @memberof AttrRecognizer\n * @param {Object} input\n * @returns {*} State\n */\n process: function(input) {\n var state = this.state;\n var eventType = input.eventType;\n\n var isRecognized = state & (STATE_BEGAN | STATE_CHANGED);\n var isValid = this.attrTest(input);\n\n // on cancel input and we've recognized before, return STATE_CANCELLED\n if (isRecognized && (eventType & INPUT_CANCEL || !isValid)) {\n return state | STATE_CANCELLED;\n } else if (isRecognized || isValid) {\n if (eventType & INPUT_END) {\n return state | STATE_ENDED;\n } else if (!(state & STATE_BEGAN)) {\n return STATE_BEGAN;\n }\n return state | STATE_CHANGED;\n }\n return STATE_FAILED;\n }\n});\n\n/**\n * Pan\n * Recognized when the pointer is down and moved in the allowed direction.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction PanRecognizer() {\n AttrRecognizer.apply(this, arguments);\n\n this.pX = null;\n this.pY = null;\n}\n\ninherit(PanRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof PanRecognizer\n */\n defaults: {\n event: 'pan',\n threshold: 10,\n pointers: 1,\n direction: DIRECTION_ALL\n },\n\n getTouchAction: function() {\n var direction = this.options.direction;\n var actions = [];\n if (direction & DIRECTION_HORIZONTAL) {\n actions.push(TOUCH_ACTION_PAN_Y);\n }\n if (direction & DIRECTION_VERTICAL) {\n actions.push(TOUCH_ACTION_PAN_X);\n }\n return actions;\n },\n\n directionTest: function(input) {\n var options = this.options;\n var hasMoved = true;\n var distance = input.distance;\n var direction = input.direction;\n var x = input.deltaX;\n var y = input.deltaY;\n\n // lock to axis?\n if (!(direction & options.direction)) {\n if (options.direction & DIRECTION_HORIZONTAL) {\n direction = (x === 0) ? DIRECTION_NONE : (x < 0) ? DIRECTION_LEFT : DIRECTION_RIGHT;\n hasMoved = x != this.pX;\n distance = Math.abs(input.deltaX);\n } else {\n direction = (y === 0) ? DIRECTION_NONE : (y < 0) ? DIRECTION_UP : DIRECTION_DOWN;\n hasMoved = y != this.pY;\n distance = Math.abs(input.deltaY);\n }\n }\n input.direction = direction;\n return hasMoved && distance > options.threshold && direction & options.direction;\n },\n\n attrTest: function(input) {\n return AttrRecognizer.prototype.attrTest.call(this, input) &&\n (this.state & STATE_BEGAN || (!(this.state & STATE_BEGAN) && this.directionTest(input)));\n },\n\n emit: function(input) {\n\n this.pX = input.deltaX;\n this.pY = input.deltaY;\n\n var direction = directionStr(input.direction);\n\n if (direction) {\n input.additionalEvent = this.options.event + direction;\n }\n this._super.emit.call(this, input);\n }\n});\n\n/**\n * Pinch\n * Recognized when two or more pointers are moving toward (zoom-in) or away from each other (zoom-out).\n * @constructor\n * @extends AttrRecognizer\n */\nfunction PinchRecognizer() {\n AttrRecognizer.apply(this, arguments);\n}\n\ninherit(PinchRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof PinchRecognizer\n */\n defaults: {\n event: 'pinch',\n threshold: 0,\n pointers: 2\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_NONE];\n },\n\n attrTest: function(input) {\n return this._super.attrTest.call(this, input) &&\n (Math.abs(input.scale - 1) > this.options.threshold || this.state & STATE_BEGAN);\n },\n\n emit: function(input) {\n if (input.scale !== 1) {\n var inOut = input.scale < 1 ? 'in' : 'out';\n input.additionalEvent = this.options.event + inOut;\n }\n this._super.emit.call(this, input);\n }\n});\n\n/**\n * Press\n * Recognized when the pointer is down for x ms without any movement.\n * @constructor\n * @extends Recognizer\n */\nfunction PressRecognizer() {\n Recognizer.apply(this, arguments);\n\n this._timer = null;\n this._input = null;\n}\n\ninherit(PressRecognizer, Recognizer, {\n /**\n * @namespace\n * @memberof PressRecognizer\n */\n defaults: {\n event: 'press',\n pointers: 1,\n time: 251, // minimal time of the pointer to be pressed\n threshold: 9 // a minimal movement is ok, but keep it low\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_AUTO];\n },\n\n process: function(input) {\n var options = this.options;\n var validPointers = input.pointers.length === options.pointers;\n var validMovement = input.distance < options.threshold;\n var validTime = input.deltaTime > options.time;\n\n this._input = input;\n\n // we only allow little movement\n // and we've reached an end event, so a tap is possible\n if (!validMovement || !validPointers || (input.eventType & (INPUT_END | INPUT_CANCEL) && !validTime)) {\n this.reset();\n } else if (input.eventType & INPUT_START) {\n this.reset();\n this._timer = setTimeoutContext(function() {\n this.state = STATE_RECOGNIZED;\n this.tryEmit();\n }, options.time, this);\n } else if (input.eventType & INPUT_END) {\n return STATE_RECOGNIZED;\n }\n return STATE_FAILED;\n },\n\n reset: function() {\n clearTimeout(this._timer);\n },\n\n emit: function(input) {\n if (this.state !== STATE_RECOGNIZED) {\n return;\n }\n\n if (input && (input.eventType & INPUT_END)) {\n this.manager.emit(this.options.event + 'up', input);\n } else {\n this._input.timeStamp = now();\n this.manager.emit(this.options.event, this._input);\n }\n }\n});\n\n/**\n * Rotate\n * Recognized when two or more pointer are moving in a circular motion.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction RotateRecognizer() {\n AttrRecognizer.apply(this, arguments);\n}\n\ninherit(RotateRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof RotateRecognizer\n */\n defaults: {\n event: 'rotate',\n threshold: 0,\n pointers: 2\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_NONE];\n },\n\n attrTest: function(input) {\n return this._super.attrTest.call(this, input) &&\n (Math.abs(input.rotation) > this.options.threshold || this.state & STATE_BEGAN);\n }\n});\n\n/**\n * Swipe\n * Recognized when the pointer is moving fast (velocity), with enough distance in the allowed direction.\n * @constructor\n * @extends AttrRecognizer\n */\nfunction SwipeRecognizer() {\n AttrRecognizer.apply(this, arguments);\n}\n\ninherit(SwipeRecognizer, AttrRecognizer, {\n /**\n * @namespace\n * @memberof SwipeRecognizer\n */\n defaults: {\n event: 'swipe',\n threshold: 10,\n velocity: 0.3,\n direction: DIRECTION_HORIZONTAL | DIRECTION_VERTICAL,\n pointers: 1\n },\n\n getTouchAction: function() {\n return PanRecognizer.prototype.getTouchAction.call(this);\n },\n\n attrTest: function(input) {\n var direction = this.options.direction;\n var velocity;\n\n if (direction & (DIRECTION_HORIZONTAL | DIRECTION_VERTICAL)) {\n velocity = input.overallVelocity;\n } else if (direction & DIRECTION_HORIZONTAL) {\n velocity = input.overallVelocityX;\n } else if (direction & DIRECTION_VERTICAL) {\n velocity = input.overallVelocityY;\n }\n\n return this._super.attrTest.call(this, input) &&\n direction & input.offsetDirection &&\n input.distance > this.options.threshold &&\n input.maxPointers == this.options.pointers &&\n abs(velocity) > this.options.velocity && input.eventType & INPUT_END;\n },\n\n emit: function(input) {\n var direction = directionStr(input.offsetDirection);\n if (direction) {\n this.manager.emit(this.options.event + direction, input);\n }\n\n this.manager.emit(this.options.event, input);\n }\n});\n\n/**\n * A tap is ecognized when the pointer is doing a small tap/click. Multiple taps are recognized if they occur\n * between the given interval and position. The delay option can be used to recognize multi-taps without firing\n * a single tap.\n *\n * The eventData from the emitted event contains the property `tapCount`, which contains the amount of\n * multi-taps being recognized.\n * @constructor\n * @extends Recognizer\n */\nfunction TapRecognizer() {\n Recognizer.apply(this, arguments);\n\n // previous time and center,\n // used for tap counting\n this.pTime = false;\n this.pCenter = false;\n\n this._timer = null;\n this._input = null;\n this.count = 0;\n}\n\ninherit(TapRecognizer, Recognizer, {\n /**\n * @namespace\n * @memberof PinchRecognizer\n */\n defaults: {\n event: 'tap',\n pointers: 1,\n taps: 1,\n interval: 300, // max time between the multi-tap taps\n time: 250, // max time of the pointer to be down (like finger on the screen)\n threshold: 9, // a minimal movement is ok, but keep it low\n posThreshold: 10 // a multi-tap can be a bit off the initial position\n },\n\n getTouchAction: function() {\n return [TOUCH_ACTION_MANIPULATION];\n },\n\n process: function(input) {\n var options = this.options;\n\n var validPointers = input.pointers.length === options.pointers;\n var validMovement = input.distance < options.threshold;\n var validTouchTime = input.deltaTime < options.time;\n\n this.reset();\n\n if ((input.eventType & INPUT_START) && (this.count === 0)) {\n return this.failTimeout();\n }\n\n // we only allow little movement\n // and we've reached an end event, so a tap is possible\n if (validMovement && validTouchTime && validPointers) {\n if (input.eventType != INPUT_END) {\n return this.failTimeout();\n }\n\n var validInterval = this.pTime ? (input.timeStamp - this.pTime < options.interval) : true;\n var validMultiTap = !this.pCenter || getDistance(this.pCenter, input.center) < options.posThreshold;\n\n this.pTime = input.timeStamp;\n this.pCenter = input.center;\n\n if (!validMultiTap || !validInterval) {\n this.count = 1;\n } else {\n this.count += 1;\n }\n\n this._input = input;\n\n // if tap count matches we have recognized it,\n // else it has began recognizing...\n var tapCount = this.count % options.taps;\n if (tapCount === 0) {\n // no failing requirements, immediately trigger the tap event\n // or wait as long as the multitap interval to trigger\n if (!this.hasRequireFailures()) {\n return STATE_RECOGNIZED;\n } else {\n this._timer = setTimeoutContext(function() {\n this.state = STATE_RECOGNIZED;\n this.tryEmit();\n }, options.interval, this);\n return STATE_BEGAN;\n }\n }\n }\n return STATE_FAILED;\n },\n\n failTimeout: function() {\n this._timer = setTimeoutContext(function() {\n this.state = STATE_FAILED;\n }, this.options.interval, this);\n return STATE_FAILED;\n },\n\n reset: function() {\n clearTimeout(this._timer);\n },\n\n emit: function() {\n if (this.state == STATE_RECOGNIZED) {\n this._input.tapCount = this.count;\n this.manager.emit(this.options.event, this._input);\n }\n }\n});\n\n/**\n * Simple way to create a manager with a default set of recognizers.\n * @param {HTMLElement} element\n * @param {Object} [options]\n * @constructor\n */\nfunction Hammer(element, options) {\n options = options || {};\n options.recognizers = ifUndefined(options.recognizers, Hammer.defaults.preset);\n return new Manager(element, options);\n}\n\n/**\n * @const {string}\n */\nHammer.VERSION = '2.0.7';\n\n/**\n * default settings\n * @namespace\n */\nHammer.defaults = {\n /**\n * set if DOM events are being triggered.\n * But this is slower and unused by simple implementations, so disabled by default.\n * @type {Boolean}\n * @default false\n */\n domEvents: false,\n\n /**\n * The value for the touchAction property/fallback.\n * When set to `compute` it will magically set the correct value based on the added recognizers.\n * @type {String}\n * @default compute\n */\n touchAction: TOUCH_ACTION_COMPUTE,\n\n /**\n * @type {Boolean}\n * @default true\n */\n enable: true,\n\n /**\n * EXPERIMENTAL FEATURE -- can be removed/changed\n * Change the parent input target element.\n * If Null, then it is being set the to main element.\n * @type {Null|EventTarget}\n * @default null\n */\n inputTarget: null,\n\n /**\n * force an input class\n * @type {Null|Function}\n * @default null\n */\n inputClass: null,\n\n /**\n * Default recognizer setup when calling `Hammer()`\n * When creating a new Manager these will be skipped.\n * @type {Array}\n */\n preset: [\n // RecognizerClass, options, [recognizeWith, ...], [requireFailure, ...]\n [RotateRecognizer, {enable: false}],\n [PinchRecognizer, {enable: false}, ['rotate']],\n [SwipeRecognizer, {direction: DIRECTION_HORIZONTAL}],\n [PanRecognizer, {direction: DIRECTION_HORIZONTAL}, ['swipe']],\n [TapRecognizer],\n [TapRecognizer, {event: 'doubletap', taps: 2}, ['tap']],\n [PressRecognizer]\n ],\n\n /**\n * Some CSS properties can be used to improve the working of Hammer.\n * Add them to this method and they will be set when creating a new Manager.\n * @namespace\n */\n cssProps: {\n /**\n * Disables text selection to improve the dragging gesture. Mainly for desktop browsers.\n * @type {String}\n * @default 'none'\n */\n userSelect: 'none',\n\n /**\n * Disable the Windows Phone grippers when pressing an element.\n * @type {String}\n * @default 'none'\n */\n touchSelect: 'none',\n\n /**\n * Disables the default callout shown when you touch and hold a touch target.\n * On iOS, when you touch and hold a touch target such as a link, Safari displays\n * a callout containing information about the link. This property allows you to disable that callout.\n * @type {String}\n * @default 'none'\n */\n touchCallout: 'none',\n\n /**\n * Specifies whether zooming is enabled. Used by IE10>\n * @type {String}\n * @default 'none'\n */\n contentZooming: 'none',\n\n /**\n * Specifies that an entire element should be draggable instead of its contents. Mainly for desktop browsers.\n * @type {String}\n * @default 'none'\n */\n userDrag: 'none',\n\n /**\n * Overrides the highlight color shown when the user taps a link or a JavaScript\n * clickable element in iOS. This property obeys the alpha value, if specified.\n * @type {String}\n * @default 'rgba(0,0,0,0)'\n */\n tapHighlightColor: 'rgba(0,0,0,0)'\n }\n};\n\nvar STOP = 1;\nvar FORCED_STOP = 2;\n\n/**\n * Manager\n * @param {HTMLElement} element\n * @param {Object} [options]\n * @constructor\n */\nfunction Manager(element, options) {\n this.options = assign({}, Hammer.defaults, options || {});\n\n this.options.inputTarget = this.options.inputTarget || element;\n\n this.handlers = {};\n this.session = {};\n this.recognizers = [];\n this.oldCssProps = {};\n\n this.element = element;\n this.input = createInputInstance(this);\n this.touchAction = new TouchAction(this, this.options.touchAction);\n\n toggleCssProps(this, true);\n\n each(this.options.recognizers, function(item) {\n var recognizer = this.add(new (item[0])(item[1]));\n item[2] && recognizer.recognizeWith(item[2]);\n item[3] && recognizer.requireFailure(item[3]);\n }, this);\n}\n\nManager.prototype = {\n /**\n * set options\n * @param {Object} options\n * @returns {Manager}\n */\n set: function(options) {\n assign(this.options, options);\n\n // Options that need a little more setup\n if (options.touchAction) {\n this.touchAction.update();\n }\n if (options.inputTarget) {\n // Clean up existing event listeners and reinitialize\n this.input.destroy();\n this.input.target = options.inputTarget;\n this.input.init();\n }\n return this;\n },\n\n /**\n * stop recognizing for this session.\n * This session will be discarded, when a new [input]start event is fired.\n * When forced, the recognizer cycle is stopped immediately.\n * @param {Boolean} [force]\n */\n stop: function(force) {\n this.session.stopped = force ? FORCED_STOP : STOP;\n },\n\n /**\n * run the recognizers!\n * called by the inputHandler function on every movement of the pointers (touches)\n * it walks through all the recognizers and tries to detect the gesture that is being made\n * @param {Object} inputData\n */\n recognize: function(inputData) {\n var session = this.session;\n if (session.stopped) {\n return;\n }\n\n // run the touch-action polyfill\n this.touchAction.preventDefaults(inputData);\n\n var recognizer;\n var recognizers = this.recognizers;\n\n // this holds the recognizer that is being recognized.\n // so the recognizer's state needs to be BEGAN, CHANGED, ENDED or RECOGNIZED\n // if no recognizer is detecting a thing, it is set to `null`\n var curRecognizer = session.curRecognizer;\n\n // reset when the last recognizer is recognized\n // or when we're in a new session\n if (!curRecognizer || (curRecognizer && curRecognizer.state & STATE_RECOGNIZED)) {\n curRecognizer = session.curRecognizer = null;\n }\n\n var i = 0;\n while (i < recognizers.length) {\n recognizer = recognizers[i];\n\n // find out if we are allowed try to recognize the input for this one.\n // 1. allow if the session is NOT forced stopped (see the .stop() method)\n // 2. allow if we still haven't recognized a gesture in this session, or the this recognizer is the one\n // that is being recognized.\n // 3. allow if the recognizer is allowed to run simultaneous with the current recognized recognizer.\n // this can be setup with the `recognizeWith()` method on the recognizer.\n if (session.stopped !== FORCED_STOP && ( // 1\n !curRecognizer || recognizer == curRecognizer || // 2\n recognizer.canRecognizeWith(curRecognizer))) { // 3\n recognizer.recognize(inputData);\n } else {\n recognizer.reset();\n }\n\n // if the recognizer has been recognizing the input as a valid gesture, we want to store this one as the\n // current active recognizer. but only if we don't already have an active recognizer\n if (!curRecognizer && recognizer.state & (STATE_BEGAN | STATE_CHANGED | STATE_ENDED)) {\n curRecognizer = session.curRecognizer = recognizer;\n }\n i++;\n }\n },\n\n /**\n * get a recognizer by its event name.\n * @param {Recognizer|String} recognizer\n * @returns {Recognizer|Null}\n */\n get: function(recognizer) {\n if (recognizer instanceof Recognizer) {\n return recognizer;\n }\n\n var recognizers = this.recognizers;\n for (var i = 0; i < recognizers.length; i++) {\n if (recognizers[i].options.event == recognizer) {\n return recognizers[i];\n }\n }\n return null;\n },\n\n /**\n * add a recognizer to the manager\n * existing recognizers with the same event name will be removed\n * @param {Recognizer} recognizer\n * @returns {Recognizer|Manager}\n */\n add: function(recognizer) {\n if (invokeArrayArg(recognizer, 'add', this)) {\n return this;\n }\n\n // remove existing\n var existing = this.get(recognizer.options.event);\n if (existing) {\n this.remove(existing);\n }\n\n this.recognizers.push(recognizer);\n recognizer.manager = this;\n\n this.touchAction.update();\n return recognizer;\n },\n\n /**\n * remove a recognizer by name or instance\n * @param {Recognizer|String} recognizer\n * @returns {Manager}\n */\n remove: function(recognizer) {\n if (invokeArrayArg(recognizer, 'remove', this)) {\n return this;\n }\n\n recognizer = this.get(recognizer);\n\n // let's make sure this recognizer exists\n if (recognizer) {\n var recognizers = this.recognizers;\n var index = inArray(recognizers, recognizer);\n\n if (index !== -1) {\n recognizers.splice(index, 1);\n this.touchAction.update();\n }\n }\n\n return this;\n },\n\n /**\n * bind event\n * @param {String} events\n * @param {Function} handler\n * @returns {EventEmitter} this\n */\n on: function(events, handler) {\n if (events === undefined) {\n return;\n }\n if (handler === undefined) {\n return;\n }\n\n var handlers = this.handlers;\n each(splitStr(events), function(event) {\n handlers[event] = handlers[event] || [];\n handlers[event].push(handler);\n });\n return this;\n },\n\n /**\n * unbind event, leave emit blank to remove all handlers\n * @param {String} events\n * @param {Function} [handler]\n * @returns {EventEmitter} this\n */\n off: function(events, handler) {\n if (events === undefined) {\n return;\n }\n\n var handlers = this.handlers;\n each(splitStr(events), function(event) {\n if (!handler) {\n delete handlers[event];\n } else {\n handlers[event] && handlers[event].splice(inArray(handlers[event], handler), 1);\n }\n });\n return this;\n },\n\n /**\n * emit event to the listeners\n * @param {String} event\n * @param {Object} data\n */\n emit: function(event, data) {\n // we also want to trigger dom events\n if (this.options.domEvents) {\n triggerDomEvent(event, data);\n }\n\n // no handlers, so skip it all\n var handlers = this.handlers[event] && this.handlers[event].slice();\n if (!handlers || !handlers.length) {\n return;\n }\n\n data.type = event;\n data.preventDefault = function() {\n data.srcEvent.preventDefault();\n };\n\n var i = 0;\n while (i < handlers.length) {\n handlers[i](data);\n i++;\n }\n },\n\n /**\n * destroy the manager and unbinds all events\n * it doesn't unbind dom events, that is the user own responsibility\n */\n destroy: function() {\n this.element && toggleCssProps(this, false);\n\n this.handlers = {};\n this.session = {};\n this.input.destroy();\n this.element = null;\n }\n};\n\n/**\n * add/remove the css properties as defined in manager.options.cssProps\n * @param {Manager} manager\n * @param {Boolean} add\n */\nfunction toggleCssProps(manager, add) {\n var element = manager.element;\n if (!element.style) {\n return;\n }\n var prop;\n each(manager.options.cssProps, function(value, name) {\n prop = prefixed(element.style, name);\n if (add) {\n manager.oldCssProps[prop] = element.style[prop];\n element.style[prop] = value;\n } else {\n element.style[prop] = manager.oldCssProps[prop] || '';\n }\n });\n if (!add) {\n manager.oldCssProps = {};\n }\n}\n\n/**\n * trigger dom event\n * @param {String} event\n * @param {Object} data\n */\nfunction triggerDomEvent(event, data) {\n var gestureEvent = document.createEvent('Event');\n gestureEvent.initEvent(event, true, true);\n gestureEvent.gesture = data;\n data.target.dispatchEvent(gestureEvent);\n}\n\nassign(Hammer, {\n INPUT_START: INPUT_START,\n INPUT_MOVE: INPUT_MOVE,\n INPUT_END: INPUT_END,\n INPUT_CANCEL: INPUT_CANCEL,\n\n STATE_POSSIBLE: STATE_POSSIBLE,\n STATE_BEGAN: STATE_BEGAN,\n STATE_CHANGED: STATE_CHANGED,\n STATE_ENDED: STATE_ENDED,\n STATE_RECOGNIZED: STATE_RECOGNIZED,\n STATE_CANCELLED: STATE_CANCELLED,\n STATE_FAILED: STATE_FAILED,\n\n DIRECTION_NONE: DIRECTION_NONE,\n DIRECTION_LEFT: DIRECTION_LEFT,\n DIRECTION_RIGHT: DIRECTION_RIGHT,\n DIRECTION_UP: DIRECTION_UP,\n DIRECTION_DOWN: DIRECTION_DOWN,\n DIRECTION_HORIZONTAL: DIRECTION_HORIZONTAL,\n DIRECTION_VERTICAL: DIRECTION_VERTICAL,\n DIRECTION_ALL: DIRECTION_ALL,\n\n Manager: Manager,\n Input: Input,\n TouchAction: TouchAction,\n\n TouchInput: TouchInput,\n MouseInput: MouseInput,\n PointerEventInput: PointerEventInput,\n TouchMouseInput: TouchMouseInput,\n SingleTouchInput: SingleTouchInput,\n\n Recognizer: Recognizer,\n AttrRecognizer: AttrRecognizer,\n Tap: TapRecognizer,\n Pan: PanRecognizer,\n Swipe: SwipeRecognizer,\n Pinch: PinchRecognizer,\n Rotate: RotateRecognizer,\n Press: PressRecognizer,\n\n on: addEventListeners,\n off: removeEventListeners,\n each: each,\n merge: merge,\n extend: extend,\n assign: assign,\n inherit: inherit,\n bindFn: bindFn,\n prefixed: prefixed\n});\n\n// this prevents errors when Hammer is loaded in the presence of an AMD\n// style loader but by script tag, not by the loader.\nvar freeGlobal = (typeof window !== 'undefined' ? window : (typeof self !== 'undefined' ? self : {})); // jshint ignore:line\nfreeGlobal.Hammer = Hammer;\n\nif (true) {\n !(__WEBPACK_AMD_DEFINE_RESULT__ = function() {\n return Hammer;\n }.call(exports, __webpack_require__, exports, module),\n\t\t\t\t__WEBPACK_AMD_DEFINE_RESULT__ !== undefined && (module.exports = __WEBPACK_AMD_DEFINE_RESULT__));\n} else if (typeof module != 'undefined' && module.exports) {\n module.exports = Hammer;\n} else {\n window[exportName] = Hammer;\n}\n\n})(window, document, 'Hammer');\n\n\n/***/ }),\n/* 44 */\n/***/ (function(module, exports) {\n\nexports.read = function (buffer, offset, isLE, mLen, nBytes) {\n var e, m\n var eLen = nBytes * 8 - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var nBits = -7\n var i = isLE ? (nBytes - 1) : 0\n var d = isLE ? -1 : 1\n var s = buffer[offset + i]\n\n i += d\n\n e = s & ((1 << (-nBits)) - 1)\n s >>= (-nBits)\n nBits += eLen\n for (; nBits > 0; e = e * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n m = e & ((1 << (-nBits)) - 1)\n e >>= (-nBits)\n nBits += mLen\n for (; nBits > 0; m = m * 256 + buffer[offset + i], i += d, nBits -= 8) {}\n\n if (e === 0) {\n e = 1 - eBias\n } else if (e === eMax) {\n return m ? NaN : ((s ? -1 : 1) * Infinity)\n } else {\n m = m + Math.pow(2, mLen)\n e = e - eBias\n }\n return (s ? -1 : 1) * m * Math.pow(2, e - mLen)\n}\n\nexports.write = function (buffer, value, offset, isLE, mLen, nBytes) {\n var e, m, c\n var eLen = nBytes * 8 - mLen - 1\n var eMax = (1 << eLen) - 1\n var eBias = eMax >> 1\n var rt = (mLen === 23 ? Math.pow(2, -24) - Math.pow(2, -77) : 0)\n var i = isLE ? 0 : (nBytes - 1)\n var d = isLE ? 1 : -1\n var s = value < 0 || (value === 0 && 1 / value < 0) ? 1 : 0\n\n value = Math.abs(value)\n\n if (isNaN(value) || value === Infinity) {\n m = isNaN(value) ? 1 : 0\n e = eMax\n } else {\n e = Math.floor(Math.log(value) / Math.LN2)\n if (value * (c = Math.pow(2, -e)) < 1) {\n e--\n c *= 2\n }\n if (e + eBias >= 1) {\n value += rt / c\n } else {\n value += rt * Math.pow(2, 1 - eBias)\n }\n if (value * c >= 2) {\n e++\n c /= 2\n }\n\n if (e + eBias >= eMax) {\n m = 0\n e = eMax\n } else if (e + eBias >= 1) {\n m = (value * c - 1) * Math.pow(2, mLen)\n e = e + eBias\n } else {\n m = value * Math.pow(2, eBias - 1) * Math.pow(2, mLen)\n e = 0\n }\n }\n\n for (; mLen >= 8; buffer[offset + i] = m & 0xff, i += d, m /= 256, mLen -= 8) {}\n\n e = (e << mLen) | m\n eLen += mLen\n for (; eLen > 0; buffer[offset + i] = e & 0xff, i += d, e /= 256, eLen -= 8) {}\n\n buffer[offset + i - d] |= s * 128\n}\n\n\n/***/ }),\n/* 45 */\n/***/ (function(module, exports) {\n\nvar toString = {}.toString;\n\nmodule.exports = Array.isArray || function (arr) {\n return toString.call(arr) == '[object Array]';\n};\n\n\n/***/ }),\n/* 46 */\n/***/ (function(module, exports) {\n\n// shim for using process in browser\nvar process = module.exports = {};\n\n// cached from whatever global is present so that test runners that stub it\n// don't break things. But we need to wrap it in a try catch in case it is\n// wrapped in strict mode code which doesn't define any globals. It's inside a\n// function because try/catches deoptimize in certain engines.\n\nvar cachedSetTimeout;\nvar cachedClearTimeout;\n\nfunction defaultSetTimout() {\n throw new Error('setTimeout has not been defined');\n}\nfunction defaultClearTimeout () {\n throw new Error('clearTimeout has not been defined');\n}\n(function () {\n try {\n if (typeof setTimeout === 'function') {\n cachedSetTimeout = setTimeout;\n } else {\n cachedSetTimeout = defaultSetTimout;\n }\n } catch (e) {\n cachedSetTimeout = defaultSetTimout;\n }\n try {\n if (typeof clearTimeout === 'function') {\n cachedClearTimeout = clearTimeout;\n } else {\n cachedClearTimeout = defaultClearTimeout;\n }\n } catch (e) {\n cachedClearTimeout = defaultClearTimeout;\n }\n} ())\nfunction runTimeout(fun) {\n if (cachedSetTimeout === setTimeout) {\n //normal enviroments in sane situations\n return setTimeout(fun, 0);\n }\n // if setTimeout wasn't available but was latter defined\n if ((cachedSetTimeout === defaultSetTimout || !cachedSetTimeout) && setTimeout) {\n cachedSetTimeout = setTimeout;\n return setTimeout(fun, 0);\n }\n try {\n // when when somebody has screwed with setTimeout but no I.E. maddness\n return cachedSetTimeout(fun, 0);\n } catch(e){\n try {\n // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n return cachedSetTimeout.call(null, fun, 0);\n } catch(e){\n // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error\n return cachedSetTimeout.call(this, fun, 0);\n }\n }\n\n\n}\nfunction runClearTimeout(marker) {\n if (cachedClearTimeout === clearTimeout) {\n //normal enviroments in sane situations\n return clearTimeout(marker);\n }\n // if clearTimeout wasn't available but was latter defined\n if ((cachedClearTimeout === defaultClearTimeout || !cachedClearTimeout) && clearTimeout) {\n cachedClearTimeout = clearTimeout;\n return clearTimeout(marker);\n }\n try {\n // when when somebody has screwed with setTimeout but no I.E. maddness\n return cachedClearTimeout(marker);\n } catch (e){\n try {\n // When we are in I.E. but the script has been evaled so I.E. doesn't trust the global object when called normally\n return cachedClearTimeout.call(null, marker);\n } catch (e){\n // same as above but when it's a version of I.E. that must have the global object for 'this', hopfully our context correct otherwise it will throw a global error.\n // Some versions of I.E. have different rules for clearTimeout vs setTimeout\n return cachedClearTimeout.call(this, marker);\n }\n }\n\n\n\n}\nvar queue = [];\nvar draining = false;\nvar currentQueue;\nvar queueIndex = -1;\n\nfunction cleanUpNextTick() {\n if (!draining || !currentQueue) {\n return;\n }\n draining = false;\n if (currentQueue.length) {\n queue = currentQueue.concat(queue);\n } else {\n queueIndex = -1;\n }\n if (queue.length) {\n drainQueue();\n }\n}\n\nfunction drainQueue() {\n if (draining) {\n return;\n }\n var timeout = runTimeout(cleanUpNextTick);\n draining = true;\n\n var len = queue.length;\n while(len) {\n currentQueue = queue;\n queue = [];\n while (++queueIndex < len) {\n if (currentQueue) {\n currentQueue[queueIndex].run();\n }\n }\n queueIndex = -1;\n len = queue.length;\n }\n currentQueue = null;\n draining = false;\n runClearTimeout(timeout);\n}\n\nprocess.nextTick = function (fun) {\n var args = new Array(arguments.length - 1);\n if (arguments.length > 1) {\n for (var i = 1; i < arguments.length; i++) {\n args[i - 1] = arguments[i];\n }\n }\n queue.push(new Item(fun, args));\n if (queue.length === 1 && !draining) {\n runTimeout(drainQueue);\n }\n};\n\n// v8 likes predictible objects\nfunction Item(fun, array) {\n this.fun = fun;\n this.array = array;\n}\nItem.prototype.run = function () {\n this.fun.apply(null, this.array);\n};\nprocess.title = 'browser';\nprocess.browser = true;\nprocess.env = {};\nprocess.argv = [];\nprocess.version = ''; // empty string to avoid regexp issues\nprocess.versions = {};\n\nfunction noop() {}\n\nprocess.on = noop;\nprocess.addListener = noop;\nprocess.once = noop;\nprocess.off = noop;\nprocess.removeListener = noop;\nprocess.removeAllListeners = noop;\nprocess.emit = noop;\nprocess.prependListener = noop;\nprocess.prependOnceListener = noop;\n\nprocess.listeners = function (name) { return [] }\n\nprocess.binding = function (name) {\n throw new Error('process.binding is not supported');\n};\n\nprocess.cwd = function () { return '/' };\nprocess.chdir = function (dir) {\n throw new Error('process.chdir is not supported');\n};\nprocess.umask = function() { return 0; };\n\n\n/***/ }),\n/* 47 */,\n/* 48 */,\n/* 49 */,\n/* 50 */,\n/* 51 */,\n/* 52 */,\n/* 53 */,\n/* 54 */\n/***/ (function(module, __webpack_exports__, __webpack_require__) {\n\n\"use strict\";\n/**\n * vue-router v2.5.3\n * (c) 2017 Evan You\n * @license MIT\n */\n/* */\n\nfunction assert (condition, message) {\n if (!condition) {\n throw new Error((\"[vue-router] \" + message))\n }\n}\n\nfunction warn (condition, message) {\n if (false) {\n typeof console !== 'undefined' && console.warn((\"[vue-router] \" + message));\n }\n}\n\nvar View = {\n name: 'router-view',\n functional: true,\n props: {\n name: {\n type: String,\n default: 'default'\n }\n },\n render: function render (_, ref) {\n var props = ref.props;\n var children = ref.children;\n var parent = ref.parent;\n var data = ref.data;\n\n data.routerView = true;\n\n // directly use parent context's createElement() function\n // so that components rendered by router-view can resolve named slots\n var h = parent.$createElement;\n var name = props.name;\n var route = parent.$route;\n var cache = parent._routerViewCache || (parent._routerViewCache = {});\n\n // determine current view depth, also check to see if the tree\n // has been toggled inactive but kept-alive.\n var depth = 0;\n var inactive = false;\n while (parent) {\n if (parent.$vnode && parent.$vnode.data.routerView) {\n depth++;\n }\n if (parent._inactive) {\n inactive = true;\n }\n parent = parent.$parent;\n }\n data.routerViewDepth = depth;\n\n // render previous view if the tree is inactive and kept-alive\n if (inactive) {\n return h(cache[name], data, children)\n }\n\n var matched = route.matched[depth];\n // render empty node if no matched route\n if (!matched) {\n cache[name] = null;\n return h()\n }\n\n var component = cache[name] = matched.components[name];\n\n // attach instance registration hook\n // this will be called in the instance's injected lifecycle hooks\n data.registerRouteInstance = function (vm, val) {\n // val could be undefined for unregistration\n var current = matched.instances[name];\n if (\n (val && current !== vm) ||\n (!val && current === vm)\n ) {\n matched.instances[name] = val;\n }\n }\n\n // also regiseter instance in prepatch hook\n // in case the same component instance is reused across different routes\n ;(data.hook || (data.hook = {})).prepatch = function (_, vnode) {\n matched.instances[name] = vnode.componentInstance;\n };\n\n // resolve props\n data.props = resolveProps(route, matched.props && matched.props[name]);\n\n return h(component, data, children)\n }\n};\n\nfunction resolveProps (route, config) {\n switch (typeof config) {\n case 'undefined':\n return\n case 'object':\n return config\n case 'function':\n return config(route)\n case 'boolean':\n return config ? route.params : undefined\n default:\n if (false) {\n warn(\n false,\n \"props in \\\"\" + (route.path) + \"\\\" is a \" + (typeof config) + \", \" +\n \"expecting an object, function or boolean.\"\n );\n }\n }\n}\n\n/* */\n\nvar encodeReserveRE = /[!'()*]/g;\nvar encodeReserveReplacer = function (c) { return '%' + c.charCodeAt(0).toString(16); };\nvar commaRE = /%2C/g;\n\n// fixed encodeURIComponent which is more conformant to RFC3986:\n// - escapes [!'()*]\n// - preserve commas\nvar encode = function (str) { return encodeURIComponent(str)\n .replace(encodeReserveRE, encodeReserveReplacer)\n .replace(commaRE, ','); };\n\nvar decode = decodeURIComponent;\n\nfunction resolveQuery (\n query,\n extraQuery,\n _parseQuery\n) {\n if ( extraQuery === void 0 ) extraQuery = {};\n\n var parse = _parseQuery || parseQuery;\n var parsedQuery;\n try {\n parsedQuery = parse(query || '');\n } catch (e) {\n \"production\" !== 'production' && warn(false, e.message);\n parsedQuery = {};\n }\n for (var key in extraQuery) {\n var val = extraQuery[key];\n parsedQuery[key] = Array.isArray(val) ? val.slice() : val;\n }\n return parsedQuery\n}\n\nfunction parseQuery (query) {\n var res = {};\n\n query = query.trim().replace(/^(\\?|#|&)/, '');\n\n if (!query) {\n return res\n }\n\n query.split('&').forEach(function (param) {\n var parts = param.replace(/\\+/g, ' ').split('=');\n var key = decode(parts.shift());\n var val = parts.length > 0\n ? decode(parts.join('='))\n : null;\n\n if (res[key] === undefined) {\n res[key] = val;\n } else if (Array.isArray(res[key])) {\n res[key].push(val);\n } else {\n res[key] = [res[key], val];\n }\n });\n\n return res\n}\n\nfunction stringifyQuery (obj) {\n var res = obj ? Object.keys(obj).map(function (key) {\n var val = obj[key];\n\n if (val === undefined) {\n return ''\n }\n\n if (val === null) {\n return encode(key)\n }\n\n if (Array.isArray(val)) {\n var result = [];\n val.slice().forEach(function (val2) {\n if (val2 === undefined) {\n return\n }\n if (val2 === null) {\n result.push(encode(key));\n } else {\n result.push(encode(key) + '=' + encode(val2));\n }\n });\n return result.join('&')\n }\n\n return encode(key) + '=' + encode(val)\n }).filter(function (x) { return x.length > 0; }).join('&') : null;\n return res ? (\"?\" + res) : ''\n}\n\n/* */\n\n\nvar trailingSlashRE = /\\/?$/;\n\nfunction createRoute (\n record,\n location,\n redirectedFrom,\n router\n) {\n var stringifyQuery$$1 = router && router.options.stringifyQuery;\n var route = {\n name: location.name || (record && record.name),\n meta: (record && record.meta) || {},\n path: location.path || '/',\n hash: location.hash || '',\n query: location.query || {},\n params: location.params || {},\n fullPath: getFullPath(location, stringifyQuery$$1),\n matched: record ? formatMatch(record) : []\n };\n if (redirectedFrom) {\n route.redirectedFrom = getFullPath(redirectedFrom, stringifyQuery$$1);\n }\n return Object.freeze(route)\n}\n\n// the starting route that represents the initial state\nvar START = createRoute(null, {\n path: '/'\n});\n\nfunction formatMatch (record) {\n var res = [];\n while (record) {\n res.unshift(record);\n record = record.parent;\n }\n return res\n}\n\nfunction getFullPath (\n ref,\n _stringifyQuery\n) {\n var path = ref.path;\n var query = ref.query; if ( query === void 0 ) query = {};\n var hash = ref.hash; if ( hash === void 0 ) hash = '';\n\n var stringify = _stringifyQuery || stringifyQuery;\n return (path || '/') + stringify(query) + hash\n}\n\nfunction isSameRoute (a, b) {\n if (b === START) {\n return a === b\n } else if (!b) {\n return false\n } else if (a.path && b.path) {\n return (\n a.path.replace(trailingSlashRE, '') === b.path.replace(trailingSlashRE, '') &&\n a.hash === b.hash &&\n isObjectEqual(a.query, b.query)\n )\n } else if (a.name && b.name) {\n return (\n a.name === b.name &&\n a.hash === b.hash &&\n isObjectEqual(a.query, b.query) &&\n isObjectEqual(a.params, b.params)\n )\n } else {\n return false\n }\n}\n\nfunction isObjectEqual (a, b) {\n if ( a === void 0 ) a = {};\n if ( b === void 0 ) b = {};\n\n var aKeys = Object.keys(a);\n var bKeys = Object.keys(b);\n if (aKeys.length !== bKeys.length) {\n return false\n }\n return aKeys.every(function (key) { return String(a[key]) === String(b[key]); })\n}\n\nfunction isIncludedRoute (current, target) {\n return (\n current.path.replace(trailingSlashRE, '/').indexOf(\n target.path.replace(trailingSlashRE, '/')\n ) === 0 &&\n (!target.hash || current.hash === target.hash) &&\n queryIncludes(current.query, target.query)\n )\n}\n\nfunction queryIncludes (current, target) {\n for (var key in target) {\n if (!(key in current)) {\n return false\n }\n }\n return true\n}\n\n/* */\n\n// work around weird flow bug\nvar toTypes = [String, Object];\nvar eventTypes = [String, Array];\n\nvar Link = {\n name: 'router-link',\n props: {\n to: {\n type: toTypes,\n required: true\n },\n tag: {\n type: String,\n default: 'a'\n },\n exact: Boolean,\n append: Boolean,\n replace: Boolean,\n activeClass: String,\n exactActiveClass: String,\n event: {\n type: eventTypes,\n default: 'click'\n }\n },\n render: function render (h) {\n var this$1 = this;\n\n var router = this.$router;\n var current = this.$route;\n var ref = router.resolve(this.to, current, this.append);\n var location = ref.location;\n var route = ref.route;\n var href = ref.href;\n\n var classes = {};\n var globalActiveClass = router.options.linkActiveClass;\n var globalExactActiveClass = router.options.linkExactActiveClass;\n // Support global empty active class\n var activeClassFallback = globalActiveClass == null\n ? 'router-link-active'\n : globalActiveClass;\n var exactActiveClassFallback = globalExactActiveClass == null\n ? 'router-link-exact-active'\n : globalExactActiveClass;\n var activeClass = this.activeClass == null\n ? activeClassFallback\n : this.activeClass;\n var exactActiveClass = this.exactActiveClass == null\n ? exactActiveClassFallback\n : this.exactActiveClass;\n var compareTarget = location.path\n ? createRoute(null, location, null, router)\n : route;\n\n classes[exactActiveClass] = isSameRoute(current, compareTarget);\n classes[activeClass] = this.exact\n ? classes[exactActiveClass]\n : isIncludedRoute(current, compareTarget);\n\n var handler = function (e) {\n if (guardEvent(e)) {\n if (this$1.replace) {\n router.replace(location);\n } else {\n router.push(location);\n }\n }\n };\n\n var on = { click: guardEvent };\n if (Array.isArray(this.event)) {\n this.event.forEach(function (e) { on[e] = handler; });\n } else {\n on[this.event] = handler;\n }\n\n var data = {\n class: classes\n };\n\n if (this.tag === 'a') {\n data.on = on;\n data.attrs = { href: href };\n } else {\n // find the first child and apply listener and href\n var a = findAnchor(this.$slots.default);\n if (a) {\n // in case the is a static node\n a.isStatic = false;\n var extend = _Vue.util.extend;\n var aData = a.data = extend({}, a.data);\n aData.on = on;\n var aAttrs = a.data.attrs = extend({}, a.data.attrs);\n aAttrs.href = href;\n } else {\n // doesn't have child, apply listener to self\n data.on = on;\n }\n }\n\n return h(this.tag, data, this.$slots.default)\n }\n};\n\nfunction guardEvent (e) {\n // don't redirect with control keys\n if (e.metaKey || e.ctrlKey || e.shiftKey) { return }\n // don't redirect when preventDefault called\n if (e.defaultPrevented) { return }\n // don't redirect on right click\n if (e.button !== undefined && e.button !== 0) { return }\n // don't redirect if `target=\"_blank\"`\n if (e.currentTarget && e.currentTarget.getAttribute) {\n var target = e.currentTarget.getAttribute('target');\n if (/\\b_blank\\b/i.test(target)) { return }\n }\n // this may be a Weex event which doesn't have this method\n if (e.preventDefault) {\n e.preventDefault();\n }\n return true\n}\n\nfunction findAnchor (children) {\n if (children) {\n var child;\n for (var i = 0; i < children.length; i++) {\n child = children[i];\n if (child.tag === 'a') {\n return child\n }\n if (child.children && (child = findAnchor(child.children))) {\n return child\n }\n }\n }\n}\n\nvar _Vue;\n\nfunction install (Vue) {\n if (install.installed) { return }\n install.installed = true;\n\n _Vue = Vue;\n\n Object.defineProperty(Vue.prototype, '$router', {\n get: function get () { return this.$root._router }\n });\n\n Object.defineProperty(Vue.prototype, '$route', {\n get: function get () { return this.$root._route }\n });\n\n var isDef = function (v) { return v !== undefined; };\n\n var registerInstance = function (vm, callVal) {\n var i = vm.$options._parentVnode;\n if (isDef(i) && isDef(i = i.data) && isDef(i = i.registerRouteInstance)) {\n i(vm, callVal);\n }\n };\n\n Vue.mixin({\n beforeCreate: function beforeCreate () {\n if (isDef(this.$options.router)) {\n this._router = this.$options.router;\n this._router.init(this);\n Vue.util.defineReactive(this, '_route', this._router.history.current);\n }\n registerInstance(this, this);\n },\n destroyed: function destroyed () {\n registerInstance(this);\n }\n });\n\n Vue.component('router-view', View);\n Vue.component('router-link', Link);\n\n var strats = Vue.config.optionMergeStrategies;\n // use the same hook merging strategy for route hooks\n strats.beforeRouteEnter = strats.beforeRouteLeave = strats.created;\n}\n\n/* */\n\nvar inBrowser = typeof window !== 'undefined';\n\n/* */\n\nfunction resolvePath (\n relative,\n base,\n append\n) {\n var firstChar = relative.charAt(0);\n if (firstChar === '/') {\n return relative\n }\n\n if (firstChar === '?' || firstChar === '#') {\n return base + relative\n }\n\n var stack = base.split('/');\n\n // remove trailing segment if:\n // - not appending\n // - appending to trailing slash (last segment is empty)\n if (!append || !stack[stack.length - 1]) {\n stack.pop();\n }\n\n // resolve relative path\n var segments = relative.replace(/^\\//, '').split('/');\n for (var i = 0; i < segments.length; i++) {\n var segment = segments[i];\n if (segment === '..') {\n stack.pop();\n } else if (segment !== '.') {\n stack.push(segment);\n }\n }\n\n // ensure leading slash\n if (stack[0] !== '') {\n stack.unshift('');\n }\n\n return stack.join('/')\n}\n\nfunction parsePath (path) {\n var hash = '';\n var query = '';\n\n var hashIndex = path.indexOf('#');\n if (hashIndex >= 0) {\n hash = path.slice(hashIndex);\n path = path.slice(0, hashIndex);\n }\n\n var queryIndex = path.indexOf('?');\n if (queryIndex >= 0) {\n query = path.slice(queryIndex + 1);\n path = path.slice(0, queryIndex);\n }\n\n return {\n path: path,\n query: query,\n hash: hash\n }\n}\n\nfunction cleanPath (path) {\n return path.replace(/\\/\\//g, '/')\n}\n\nvar index$1 = Array.isArray || function (arr) {\n return Object.prototype.toString.call(arr) == '[object Array]';\n};\n\n/**\n * Expose `pathToRegexp`.\n */\nvar index = pathToRegexp;\nvar parse_1 = parse;\nvar compile_1 = compile;\nvar tokensToFunction_1 = tokensToFunction;\nvar tokensToRegExp_1 = tokensToRegExp;\n\n/**\n * The main path matching regexp utility.\n *\n * @type {RegExp}\n */\nvar PATH_REGEXP = new RegExp([\n // Match escaped characters that would otherwise appear in future matches.\n // This allows the user to escape special characters that won't transform.\n '(\\\\\\\\.)',\n // Match Express-style parameters and un-named parameters with a prefix\n // and optional suffixes. Matches appear as:\n //\n // \"/:test(\\\\d+)?\" => [\"/\", \"test\", \"\\d+\", undefined, \"?\", undefined]\n // \"/route(\\\\d+)\" => [undefined, undefined, undefined, \"\\d+\", undefined, undefined]\n // \"/*\" => [\"/\", undefined, undefined, undefined, undefined, \"*\"]\n '([\\\\/.])?(?:(?:\\\\:(\\\\w+)(?:\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))?|\\\\(((?:\\\\\\\\.|[^\\\\\\\\()])+)\\\\))([+*?])?|(\\\\*))'\n].join('|'), 'g');\n\n/**\n * Parse a string for the raw tokens.\n *\n * @param {string} str\n * @param {Object=} options\n * @return {!Array}\n */\nfunction parse (str, options) {\n var tokens = [];\n var key = 0;\n var index = 0;\n var path = '';\n var defaultDelimiter = options && options.delimiter || '/';\n var res;\n\n while ((res = PATH_REGEXP.exec(str)) != null) {\n var m = res[0];\n var escaped = res[1];\n var offset = res.index;\n path += str.slice(index, offset);\n index = offset + m.length;\n\n // Ignore already escaped sequences.\n if (escaped) {\n path += escaped[1];\n continue\n }\n\n var next = str[index];\n var prefix = res[2];\n var name = res[3];\n var capture = res[4];\n var group = res[5];\n var modifier = res[6];\n var asterisk = res[7];\n\n // Push the current path onto the tokens.\n if (path) {\n tokens.push(path);\n path = '';\n }\n\n var partial = prefix != null && next != null && next !== prefix;\n var repeat = modifier === '+' || modifier === '*';\n var optional = modifier === '?' || modifier === '*';\n var delimiter = res[2] || defaultDelimiter;\n var pattern = capture || group;\n\n tokens.push({\n name: name || key++,\n prefix: prefix || '',\n delimiter: delimiter,\n optional: optional,\n repeat: repeat,\n partial: partial,\n asterisk: !!asterisk,\n pattern: pattern ? escapeGroup(pattern) : (asterisk ? '.*' : '[^' + escapeString(delimiter) + ']+?')\n });\n }\n\n // Match any characters still remaining.\n if (index < str.length) {\n path += str.substr(index);\n }\n\n // If the path exists, push it onto the end.\n if (path) {\n tokens.push(path);\n }\n\n return tokens\n}\n\n/**\n * Compile a string to a template function for the path.\n *\n * @param {string} str\n * @param {Object=} options\n * @return {!function(Object=, Object=)}\n */\nfunction compile (str, options) {\n return tokensToFunction(parse(str, options))\n}\n\n/**\n * Prettier encoding of URI path segments.\n *\n * @param {string}\n * @return {string}\n */\nfunction encodeURIComponentPretty (str) {\n return encodeURI(str).replace(/[\\/?#]/g, function (c) {\n return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n })\n}\n\n/**\n * Encode the asterisk parameter. Similar to `pretty`, but allows slashes.\n *\n * @param {string}\n * @return {string}\n */\nfunction encodeAsterisk (str) {\n return encodeURI(str).replace(/[?#]/g, function (c) {\n return '%' + c.charCodeAt(0).toString(16).toUpperCase()\n })\n}\n\n/**\n * Expose a method for transforming tokens into the path function.\n */\nfunction tokensToFunction (tokens) {\n // Compile all the tokens into regexps.\n var matches = new Array(tokens.length);\n\n // Compile all the patterns before compilation.\n for (var i = 0; i < tokens.length; i++) {\n if (typeof tokens[i] === 'object') {\n matches[i] = new RegExp('^(?:' + tokens[i].pattern + ')$');\n }\n }\n\n return function (obj, opts) {\n var path = '';\n var data = obj || {};\n var options = opts || {};\n var encode = options.pretty ? encodeURIComponentPretty : encodeURIComponent;\n\n for (var i = 0; i < tokens.length; i++) {\n var token = tokens[i];\n\n if (typeof token === 'string') {\n path += token;\n\n continue\n }\n\n var value = data[token.name];\n var segment;\n\n if (value == null) {\n if (token.optional) {\n // Prepend partial segment prefixes.\n if (token.partial) {\n path += token.prefix;\n }\n\n continue\n } else {\n throw new TypeError('Expected \"' + token.name + '\" to be defined')\n }\n }\n\n if (index$1(value)) {\n if (!token.repeat) {\n throw new TypeError('Expected \"' + token.name + '\" to not repeat, but received `' + JSON.stringify(value) + '`')\n }\n\n if (value.length === 0) {\n if (token.optional) {\n continue\n } else {\n throw new TypeError('Expected \"' + token.name + '\" to not be empty')\n }\n }\n\n for (var j = 0; j < value.length; j++) {\n segment = encode(value[j]);\n\n if (!matches[i].test(segment)) {\n throw new TypeError('Expected all \"' + token.name + '\" to match \"' + token.pattern + '\", but received `' + JSON.stringify(segment) + '`')\n }\n\n path += (j === 0 ? token.prefix : token.delimiter) + segment;\n }\n\n continue\n }\n\n segment = token.asterisk ? encodeAsterisk(value) : encode(value);\n\n if (!matches[i].test(segment)) {\n throw new TypeError('Expected \"' + token.name + '\" to match \"' + token.pattern + '\", but received \"' + segment + '\"')\n }\n\n path += token.prefix + segment;\n }\n\n return path\n }\n}\n\n/**\n * Escape a regular expression string.\n *\n * @param {string} str\n * @return {string}\n */\nfunction escapeString (str) {\n return str.replace(/([.+*?=^!:${}()[\\]|\\/\\\\])/g, '\\\\$1')\n}\n\n/**\n * Escape the capturing group by escaping special characters and meaning.\n *\n * @param {string} group\n * @return {string}\n */\nfunction escapeGroup (group) {\n return group.replace(/([=!:$\\/()])/g, '\\\\$1')\n}\n\n/**\n * Attach the keys as a property of the regexp.\n *\n * @param {!RegExp} re\n * @param {Array} keys\n * @return {!RegExp}\n */\nfunction attachKeys (re, keys) {\n re.keys = keys;\n return re\n}\n\n/**\n * Get the flags for a regexp from the options.\n *\n * @param {Object} options\n * @return {string}\n */\nfunction flags (options) {\n return options.sensitive ? '' : 'i'\n}\n\n/**\n * Pull out keys from a regexp.\n *\n * @param {!RegExp} path\n * @param {!Array} keys\n * @return {!RegExp}\n */\nfunction regexpToRegexp (path, keys) {\n // Use a negative lookahead to match only capturing groups.\n var groups = path.source.match(/\\((?!\\?)/g);\n\n if (groups) {\n for (var i = 0; i < groups.length; i++) {\n keys.push({\n name: i,\n prefix: null,\n delimiter: null,\n optional: false,\n repeat: false,\n partial: false,\n asterisk: false,\n pattern: null\n });\n }\n }\n\n return attachKeys(path, keys)\n}\n\n/**\n * Transform an array into a regexp.\n *\n * @param {!Array} path\n * @param {Array} keys\n * @param {!Object} options\n * @return {!RegExp}\n */\nfunction arrayToRegexp (path, keys, options) {\n var parts = [];\n\n for (var i = 0; i < path.length; i++) {\n parts.push(pathToRegexp(path[i], keys, options).source);\n }\n\n var regexp = new RegExp('(?:' + parts.join('|') + ')', flags(options));\n\n return attachKeys(regexp, keys)\n}\n\n/**\n * Create a path regexp from string input.\n *\n * @param {string} path\n * @param {!Array} keys\n * @param {!Object} options\n * @return {!RegExp}\n */\nfunction stringToRegexp (path, keys, options) {\n return tokensToRegExp(parse(path, options), keys, options)\n}\n\n/**\n * Expose a function for taking tokens and returning a RegExp.\n *\n * @param {!Array} tokens\n * @param {(Array|Object)=} keys\n * @param {Object=} options\n * @return {!RegExp}\n */\nfunction tokensToRegExp (tokens, keys, options) {\n if (!index$1(keys)) {\n options = /** @type {!Object} */ (keys || options);\n keys = [];\n }\n\n options = options || {};\n\n var strict = options.strict;\n var end = options.end !== false;\n var route = '';\n\n // Iterate over the tokens and create our regexp string.\n for (var i = 0; i < tokens.length; i++) {\n var token = tokens[i];\n\n if (typeof token === 'string') {\n route += escapeString(token);\n } else {\n var prefix = escapeString(token.prefix);\n var capture = '(?:' + token.pattern + ')';\n\n keys.push(token);\n\n if (token.repeat) {\n capture += '(?:' + prefix + capture + ')*';\n }\n\n if (token.optional) {\n if (!token.partial) {\n capture = '(?:' + prefix + '(' + capture + '))?';\n } else {\n capture = prefix + '(' + capture + ')?';\n }\n } else {\n capture = prefix + '(' + capture + ')';\n }\n\n route += capture;\n }\n }\n\n var delimiter = escapeString(options.delimiter || '/');\n var endsWithDelimiter = route.slice(-delimiter.length) === delimiter;\n\n // In non-strict mode we allow a slash at the end of match. If the path to\n // match already ends with a slash, we remove it for consistency. The slash\n // is valid at the end of a path match, not in the middle. This is important\n // in non-ending mode, where \"/test/\" shouldn't match \"/test//route\".\n if (!strict) {\n route = (endsWithDelimiter ? route.slice(0, -delimiter.length) : route) + '(?:' + delimiter + '(?=$))?';\n }\n\n if (end) {\n route += '$';\n } else {\n // In non-ending mode, we need the capturing groups to match as much as\n // possible by using a positive lookahead to the end or next path segment.\n route += strict && endsWithDelimiter ? '' : '(?=' + delimiter + '|$)';\n }\n\n return attachKeys(new RegExp('^' + route, flags(options)), keys)\n}\n\n/**\n * Normalize the given path string, returning a regular expression.\n *\n * An empty array can be passed in for the keys, which will hold the\n * placeholder key descriptions. For example, using `/user/:id`, `keys` will\n * contain `[{ name: 'id', delimiter: '/', optional: false, repeat: false }]`.\n *\n * @param {(string|RegExp|Array)} path\n * @param {(Array|Object)=} keys\n * @param {Object=} options\n * @return {!RegExp}\n */\nfunction pathToRegexp (path, keys, options) {\n if (!index$1(keys)) {\n options = /** @type {!Object} */ (keys || options);\n keys = [];\n }\n\n options = options || {};\n\n if (path instanceof RegExp) {\n return regexpToRegexp(path, /** @type {!Array} */ (keys))\n }\n\n if (index$1(path)) {\n return arrayToRegexp(/** @type {!Array} */ (path), /** @type {!Array} */ (keys), options)\n }\n\n return stringToRegexp(/** @type {string} */ (path), /** @type {!Array} */ (keys), options)\n}\n\nindex.parse = parse_1;\nindex.compile = compile_1;\nindex.tokensToFunction = tokensToFunction_1;\nindex.tokensToRegExp = tokensToRegExp_1;\n\n/* */\n\nvar regexpCompileCache = Object.create(null);\n\nfunction fillParams (\n path,\n params,\n routeMsg\n) {\n try {\n var filler =\n regexpCompileCache[path] ||\n (regexpCompileCache[path] = index.compile(path));\n return filler(params || {}, { pretty: true })\n } catch (e) {\n if (false) {\n warn(false, (\"missing param for \" + routeMsg + \": \" + (e.message)));\n }\n return ''\n }\n}\n\n/* */\n\nfunction createRouteMap (\n routes,\n oldPathList,\n oldPathMap,\n oldNameMap\n) {\n // the path list is used to control path matching priority\n var pathList = oldPathList || [];\n var pathMap = oldPathMap || Object.create(null);\n var nameMap = oldNameMap || Object.create(null);\n\n routes.forEach(function (route) {\n addRouteRecord(pathList, pathMap, nameMap, route);\n });\n\n // ensure wildcard routes are always at the end\n for (var i = 0, l = pathList.length; i < l; i++) {\n if (pathList[i] === '*') {\n pathList.push(pathList.splice(i, 1)[0]);\n l--;\n i--;\n }\n }\n\n return {\n pathList: pathList,\n pathMap: pathMap,\n nameMap: nameMap\n }\n}\n\nfunction addRouteRecord (\n pathList,\n pathMap,\n nameMap,\n route,\n parent,\n matchAs\n) {\n var path = route.path;\n var name = route.name;\n if (false) {\n assert(path != null, \"\\\"path\\\" is required in a route configuration.\");\n assert(\n typeof route.component !== 'string',\n \"route config \\\"component\\\" for path: \" + (String(path || name)) + \" cannot be a \" +\n \"string id. Use an actual component instead.\"\n );\n }\n\n var normalizedPath = normalizePath(path, parent);\n var record = {\n path: normalizedPath,\n regex: compileRouteRegex(normalizedPath),\n components: route.components || { default: route.component },\n instances: {},\n name: name,\n parent: parent,\n matchAs: matchAs,\n redirect: route.redirect,\n beforeEnter: route.beforeEnter,\n meta: route.meta || {},\n props: route.props == null\n ? {}\n : route.components\n ? route.props\n : { default: route.props }\n };\n\n if (route.children) {\n // Warn if route is named and has a default child route.\n // If users navigate to this route by name, the default child will\n // not be rendered (GH Issue #629)\n if (false) {\n if (route.name && route.children.some(function (child) { return /^\\/?$/.test(child.path); })) {\n warn(\n false,\n \"Named Route '\" + (route.name) + \"' has a default child route. \" +\n \"When navigating to this named route (:to=\\\"{name: '\" + (route.name) + \"'\\\"), \" +\n \"the default child route will not be rendered. Remove the name from \" +\n \"this route and use the name of the default child route for named \" +\n \"links instead.\"\n );\n }\n }\n route.children.forEach(function (child) {\n var childMatchAs = matchAs\n ? cleanPath((matchAs + \"/\" + (child.path)))\n : undefined;\n addRouteRecord(pathList, pathMap, nameMap, child, record, childMatchAs);\n });\n }\n\n if (route.alias !== undefined) {\n if (Array.isArray(route.alias)) {\n route.alias.forEach(function (alias) {\n var aliasRoute = {\n path: alias,\n children: route.children\n };\n addRouteRecord(pathList, pathMap, nameMap, aliasRoute, parent, record.path);\n });\n } else {\n var aliasRoute = {\n path: route.alias,\n children: route.children\n };\n addRouteRecord(pathList, pathMap, nameMap, aliasRoute, parent, record.path);\n }\n }\n\n if (!pathMap[record.path]) {\n pathList.push(record.path);\n pathMap[record.path] = record;\n }\n\n if (name) {\n if (!nameMap[name]) {\n nameMap[name] = record;\n } else if (false) {\n warn(\n false,\n \"Duplicate named routes definition: \" +\n \"{ name: \\\"\" + name + \"\\\", path: \\\"\" + (record.path) + \"\\\" }\"\n );\n }\n }\n}\n\nfunction compileRouteRegex (path) {\n var regex = index(path);\n if (false) {\n var keys = {};\n regex.keys.forEach(function (key) {\n warn(!keys[key.name], (\"Duplicate param keys in route with path: \\\"\" + path + \"\\\"\"));\n keys[key.name] = true;\n });\n }\n return regex\n}\n\nfunction normalizePath (path, parent) {\n path = path.replace(/\\/$/, '');\n if (path[0] === '/') { return path }\n if (parent == null) { return path }\n return cleanPath(((parent.path) + \"/\" + path))\n}\n\n/* */\n\n\nfunction normalizeLocation (\n raw,\n current,\n append,\n router\n) {\n var next = typeof raw === 'string' ? { path: raw } : raw;\n // named target\n if (next.name || next._normalized) {\n return next\n }\n\n // relative params\n if (!next.path && next.params && current) {\n next = assign({}, next);\n next._normalized = true;\n var params = assign(assign({}, current.params), next.params);\n if (current.name) {\n next.name = current.name;\n next.params = params;\n } else if (current.matched) {\n var rawPath = current.matched[current.matched.length - 1].path;\n next.path = fillParams(rawPath, params, (\"path \" + (current.path)));\n } else if (false) {\n warn(false, \"relative params navigation requires a current route.\");\n }\n return next\n }\n\n var parsedPath = parsePath(next.path || '');\n var basePath = (current && current.path) || '/';\n var path = parsedPath.path\n ? resolvePath(parsedPath.path, basePath, append || next.append)\n : basePath;\n\n var query = resolveQuery(\n parsedPath.query,\n next.query,\n router && router.options.parseQuery\n );\n\n var hash = next.hash || parsedPath.hash;\n if (hash && hash.charAt(0) !== '#') {\n hash = \"#\" + hash;\n }\n\n return {\n _normalized: true,\n path: path,\n query: query,\n hash: hash\n }\n}\n\nfunction assign (a, b) {\n for (var key in b) {\n a[key] = b[key];\n }\n return a\n}\n\n/* */\n\n\nfunction createMatcher (\n routes,\n router\n) {\n var ref = createRouteMap(routes);\n var pathList = ref.pathList;\n var pathMap = ref.pathMap;\n var nameMap = ref.nameMap;\n\n function addRoutes (routes) {\n createRouteMap(routes, pathList, pathMap, nameMap);\n }\n\n function match (\n raw,\n currentRoute,\n redirectedFrom\n ) {\n var location = normalizeLocation(raw, currentRoute, false, router);\n var name = location.name;\n\n if (name) {\n var record = nameMap[name];\n if (false) {\n warn(record, (\"Route with name '\" + name + \"' does not exist\"));\n }\n var paramNames = record.regex.keys\n .filter(function (key) { return !key.optional; })\n .map(function (key) { return key.name; });\n\n if (typeof location.params !== 'object') {\n location.params = {};\n }\n\n if (currentRoute && typeof currentRoute.params === 'object') {\n for (var key in currentRoute.params) {\n if (!(key in location.params) && paramNames.indexOf(key) > -1) {\n location.params[key] = currentRoute.params[key];\n }\n }\n }\n\n if (record) {\n location.path = fillParams(record.path, location.params, (\"named route \\\"\" + name + \"\\\"\"));\n return _createRoute(record, location, redirectedFrom)\n }\n } else if (location.path) {\n location.params = {};\n for (var i = 0; i < pathList.length; i++) {\n var path = pathList[i];\n var record$1 = pathMap[path];\n if (matchRoute(record$1.regex, location.path, location.params)) {\n return _createRoute(record$1, location, redirectedFrom)\n }\n }\n }\n // no match\n return _createRoute(null, location)\n }\n\n function redirect (\n record,\n location\n ) {\n var originalRedirect = record.redirect;\n var redirect = typeof originalRedirect === 'function'\n ? originalRedirect(createRoute(record, location, null, router))\n : originalRedirect;\n\n if (typeof redirect === 'string') {\n redirect = { path: redirect };\n }\n\n if (!redirect || typeof redirect !== 'object') {\n if (false) {\n warn(\n false, (\"invalid redirect option: \" + (JSON.stringify(redirect)))\n );\n }\n return _createRoute(null, location)\n }\n\n var re = redirect;\n var name = re.name;\n var path = re.path;\n var query = location.query;\n var hash = location.hash;\n var params = location.params;\n query = re.hasOwnProperty('query') ? re.query : query;\n hash = re.hasOwnProperty('hash') ? re.hash : hash;\n params = re.hasOwnProperty('params') ? re.params : params;\n\n if (name) {\n // resolved named direct\n var targetRecord = nameMap[name];\n if (false) {\n assert(targetRecord, (\"redirect failed: named route \\\"\" + name + \"\\\" not found.\"));\n }\n return match({\n _normalized: true,\n name: name,\n query: query,\n hash: hash,\n params: params\n }, undefined, location)\n } else if (path) {\n // 1. resolve relative redirect\n var rawPath = resolveRecordPath(path, record);\n // 2. resolve params\n var resolvedPath = fillParams(rawPath, params, (\"redirect route with path \\\"\" + rawPath + \"\\\"\"));\n // 3. rematch with existing query and hash\n return match({\n _normalized: true,\n path: resolvedPath,\n query: query,\n hash: hash\n }, undefined, location)\n } else {\n if (false) {\n warn(false, (\"invalid redirect option: \" + (JSON.stringify(redirect))));\n }\n return _createRoute(null, location)\n }\n }\n\n function alias (\n record,\n location,\n matchAs\n ) {\n var aliasedPath = fillParams(matchAs, location.params, (\"aliased route with path \\\"\" + matchAs + \"\\\"\"));\n var aliasedMatch = match({\n _normalized: true,\n path: aliasedPath\n });\n if (aliasedMatch) {\n var matched = aliasedMatch.matched;\n var aliasedRecord = matched[matched.length - 1];\n location.params = aliasedMatch.params;\n return _createRoute(aliasedRecord, location)\n }\n return _createRoute(null, location)\n }\n\n function _createRoute (\n record,\n location,\n redirectedFrom\n ) {\n if (record && record.redirect) {\n return redirect(record, redirectedFrom || location)\n }\n if (record && record.matchAs) {\n return alias(record, location, record.matchAs)\n }\n return createRoute(record, location, redirectedFrom, router)\n }\n\n return {\n match: match,\n addRoutes: addRoutes\n }\n}\n\nfunction matchRoute (\n regex,\n path,\n params\n) {\n var m = path.match(regex);\n\n if (!m) {\n return false\n } else if (!params) {\n return true\n }\n\n for (var i = 1, len = m.length; i < len; ++i) {\n var key = regex.keys[i - 1];\n var val = typeof m[i] === 'string' ? decodeURIComponent(m[i]) : m[i];\n if (key) {\n params[key.name] = val;\n }\n }\n\n return true\n}\n\nfunction resolveRecordPath (path, record) {\n return resolvePath(path, record.parent ? record.parent.path : '/', true)\n}\n\n/* */\n\n\nvar positionStore = Object.create(null);\n\nfunction setupScroll () {\n window.addEventListener('popstate', function (e) {\n saveScrollPosition();\n if (e.state && e.state.key) {\n setStateKey(e.state.key);\n }\n });\n}\n\nfunction handleScroll (\n router,\n to,\n from,\n isPop\n) {\n if (!router.app) {\n return\n }\n\n var behavior = router.options.scrollBehavior;\n if (!behavior) {\n return\n }\n\n if (false) {\n assert(typeof behavior === 'function', \"scrollBehavior must be a function\");\n }\n\n // wait until re-render finishes before scrolling\n router.app.$nextTick(function () {\n var position = getScrollPosition();\n var shouldScroll = behavior(to, from, isPop ? position : null);\n if (!shouldScroll) {\n return\n }\n var isObject = typeof shouldScroll === 'object';\n if (isObject && typeof shouldScroll.selector === 'string') {\n var el = document.querySelector(shouldScroll.selector);\n if (el) {\n position = getElementPosition(el);\n } else if (isValidPosition(shouldScroll)) {\n position = normalizePosition(shouldScroll);\n }\n } else if (isObject && isValidPosition(shouldScroll)) {\n position = normalizePosition(shouldScroll);\n }\n\n if (position) {\n window.scrollTo(position.x, position.y);\n }\n });\n}\n\nfunction saveScrollPosition () {\n var key = getStateKey();\n if (key) {\n positionStore[key] = {\n x: window.pageXOffset,\n y: window.pageYOffset\n };\n }\n}\n\nfunction getScrollPosition () {\n var key = getStateKey();\n if (key) {\n return positionStore[key]\n }\n}\n\nfunction getElementPosition (el) {\n var docEl = document.documentElement;\n var docRect = docEl.getBoundingClientRect();\n var elRect = el.getBoundingClientRect();\n return {\n x: elRect.left - docRect.left,\n y: elRect.top - docRect.top\n }\n}\n\nfunction isValidPosition (obj) {\n return isNumber(obj.x) || isNumber(obj.y)\n}\n\nfunction normalizePosition (obj) {\n return {\n x: isNumber(obj.x) ? obj.x : window.pageXOffset,\n y: isNumber(obj.y) ? obj.y : window.pageYOffset\n }\n}\n\nfunction isNumber (v) {\n return typeof v === 'number'\n}\n\n/* */\n\nvar supportsPushState = inBrowser && (function () {\n var ua = window.navigator.userAgent;\n\n if (\n (ua.indexOf('Android 2.') !== -1 || ua.indexOf('Android 4.0') !== -1) &&\n ua.indexOf('Mobile Safari') !== -1 &&\n ua.indexOf('Chrome') === -1 &&\n ua.indexOf('Windows Phone') === -1\n ) {\n return false\n }\n\n return window.history && 'pushState' in window.history\n})();\n\n// use User Timing api (if present) for more accurate key precision\nvar Time = inBrowser && window.performance && window.performance.now\n ? window.performance\n : Date;\n\nvar _key = genKey();\n\nfunction genKey () {\n return Time.now().toFixed(3)\n}\n\nfunction getStateKey () {\n return _key\n}\n\nfunction setStateKey (key) {\n _key = key;\n}\n\nfunction pushState (url, replace) {\n saveScrollPosition();\n // try...catch the pushState call to get around Safari\n // DOM Exception 18 where it limits to 100 pushState calls\n var history = window.history;\n try {\n if (replace) {\n history.replaceState({ key: _key }, '', url);\n } else {\n _key = genKey();\n history.pushState({ key: _key }, '', url);\n }\n } catch (e) {\n window.location[replace ? 'replace' : 'assign'](url);\n }\n}\n\nfunction replaceState (url) {\n pushState(url, true);\n}\n\n/* */\n\nfunction runQueue (queue, fn, cb) {\n var step = function (index) {\n if (index >= queue.length) {\n cb();\n } else {\n if (queue[index]) {\n fn(queue[index], function () {\n step(index + 1);\n });\n } else {\n step(index + 1);\n }\n }\n };\n step(0);\n}\n\n/* */\n\nvar History = function History (router, base) {\n this.router = router;\n this.base = normalizeBase(base);\n // start with a route object that stands for \"nowhere\"\n this.current = START;\n this.pending = null;\n this.ready = false;\n this.readyCbs = [];\n this.readyErrorCbs = [];\n this.errorCbs = [];\n};\n\nHistory.prototype.listen = function listen (cb) {\n this.cb = cb;\n};\n\nHistory.prototype.onReady = function onReady (cb, errorCb) {\n if (this.ready) {\n cb();\n } else {\n this.readyCbs.push(cb);\n if (errorCb) {\n this.readyErrorCbs.push(errorCb);\n }\n }\n};\n\nHistory.prototype.onError = function onError (errorCb) {\n this.errorCbs.push(errorCb);\n};\n\nHistory.prototype.transitionTo = function transitionTo (location, onComplete, onAbort) {\n var this$1 = this;\n\n var route = this.router.match(location, this.current);\n this.confirmTransition(route, function () {\n this$1.updateRoute(route);\n onComplete && onComplete(route);\n this$1.ensureURL();\n\n // fire ready cbs once\n if (!this$1.ready) {\n this$1.ready = true;\n this$1.readyCbs.forEach(function (cb) { cb(route); });\n }\n }, function (err) {\n if (onAbort) {\n onAbort(err);\n }\n if (err && !this$1.ready) {\n this$1.ready = true;\n this$1.readyErrorCbs.forEach(function (cb) { cb(err); });\n }\n });\n};\n\nHistory.prototype.confirmTransition = function confirmTransition (route, onComplete, onAbort) {\n var this$1 = this;\n\n var current = this.current;\n var abort = function (err) {\n if (isError(err)) {\n if (this$1.errorCbs.length) {\n this$1.errorCbs.forEach(function (cb) { cb(err); });\n } else {\n warn(false, 'uncaught error during route navigation:');\n console.error(err);\n }\n }\n onAbort && onAbort(err);\n };\n if (\n isSameRoute(route, current) &&\n // in the case the route map has been dynamically appended to\n route.matched.length === current.matched.length\n ) {\n this.ensureURL();\n return abort()\n }\n\n var ref = resolveQueue(this.current.matched, route.matched);\n var updated = ref.updated;\n var deactivated = ref.deactivated;\n var activated = ref.activated;\n\n var queue = [].concat(\n // in-component leave guards\n extractLeaveGuards(deactivated),\n // global before hooks\n this.router.beforeHooks,\n // in-component update hooks\n extractUpdateHooks(updated),\n // in-config enter guards\n activated.map(function (m) { return m.beforeEnter; }),\n // async components\n resolveAsyncComponents(activated)\n );\n\n this.pending = route;\n var iterator = function (hook, next) {\n if (this$1.pending !== route) {\n return abort()\n }\n try {\n hook(route, current, function (to) {\n if (to === false || isError(to)) {\n // next(false) -> abort navigation, ensure current URL\n this$1.ensureURL(true);\n abort(to);\n } else if (\n typeof to === 'string' ||\n (typeof to === 'object' && (\n typeof to.path === 'string' ||\n typeof to.name === 'string'\n ))\n ) {\n // next('/') or next({ path: '/' }) -> redirect\n abort();\n if (typeof to === 'object' && to.replace) {\n this$1.replace(to);\n } else {\n this$1.push(to);\n }\n } else {\n // confirm transition and pass on the value\n next(to);\n }\n });\n } catch (e) {\n abort(e);\n }\n };\n\n runQueue(queue, iterator, function () {\n var postEnterCbs = [];\n var isValid = function () { return this$1.current === route; };\n // wait until async components are resolved before\n // extracting in-component enter guards\n var enterGuards = extractEnterGuards(activated, postEnterCbs, isValid);\n var queue = enterGuards.concat(this$1.router.resolveHooks);\n runQueue(queue, iterator, function () {\n if (this$1.pending !== route) {\n return abort()\n }\n this$1.pending = null;\n onComplete(route);\n if (this$1.router.app) {\n this$1.router.app.$nextTick(function () {\n postEnterCbs.forEach(function (cb) { cb(); });\n });\n }\n });\n });\n};\n\nHistory.prototype.updateRoute = function updateRoute (route) {\n var prev = this.current;\n this.current = route;\n this.cb && this.cb(route);\n this.router.afterHooks.forEach(function (hook) {\n hook && hook(route, prev);\n });\n};\n\nfunction normalizeBase (base) {\n if (!base) {\n if (inBrowser) {\n // respect tag\n var baseEl = document.querySelector('base');\n base = (baseEl && baseEl.getAttribute('href')) || '/';\n } else {\n base = '/';\n }\n }\n // make sure there's the starting slash\n if (base.charAt(0) !== '/') {\n base = '/' + base;\n }\n // remove trailing slash\n return base.replace(/\\/$/, '')\n}\n\nfunction resolveQueue (\n current,\n next\n) {\n var i;\n var max = Math.max(current.length, next.length);\n for (i = 0; i < max; i++) {\n if (current[i] !== next[i]) {\n break\n }\n }\n return {\n updated: next.slice(0, i),\n activated: next.slice(i),\n deactivated: current.slice(i)\n }\n}\n\nfunction extractGuards (\n records,\n name,\n bind,\n reverse\n) {\n var guards = flatMapComponents(records, function (def, instance, match, key) {\n var guard = extractGuard(def, name);\n if (guard) {\n return Array.isArray(guard)\n ? guard.map(function (guard) { return bind(guard, instance, match, key); })\n : bind(guard, instance, match, key)\n }\n });\n return flatten(reverse ? guards.reverse() : guards)\n}\n\nfunction extractGuard (\n def,\n key\n) {\n if (typeof def !== 'function') {\n // extend now so that global mixins are applied.\n def = _Vue.extend(def);\n }\n return def.options[key]\n}\n\nfunction extractLeaveGuards (deactivated) {\n return extractGuards(deactivated, 'beforeRouteLeave', bindGuard, true)\n}\n\nfunction extractUpdateHooks (updated) {\n return extractGuards(updated, 'beforeRouteUpdate', bindGuard)\n}\n\nfunction bindGuard (guard, instance) {\n if (instance) {\n return function boundRouteGuard () {\n return guard.apply(instance, arguments)\n }\n }\n}\n\nfunction extractEnterGuards (\n activated,\n cbs,\n isValid\n) {\n return extractGuards(activated, 'beforeRouteEnter', function (guard, _, match, key) {\n return bindEnterGuard(guard, match, key, cbs, isValid)\n })\n}\n\nfunction bindEnterGuard (\n guard,\n match,\n key,\n cbs,\n isValid\n) {\n return function routeEnterGuard (to, from, next) {\n return guard(to, from, function (cb) {\n next(cb);\n if (typeof cb === 'function') {\n cbs.push(function () {\n // #750\n // if a router-view is wrapped with an out-in transition,\n // the instance may not have been registered at this time.\n // we will need to poll for registration until current route\n // is no longer valid.\n poll(cb, match.instances, key, isValid);\n });\n }\n })\n }\n}\n\nfunction poll (\n cb, // somehow flow cannot infer this is a function\n instances,\n key,\n isValid\n) {\n if (instances[key]) {\n cb(instances[key]);\n } else if (isValid()) {\n setTimeout(function () {\n poll(cb, instances, key, isValid);\n }, 16);\n }\n}\n\nfunction resolveAsyncComponents (matched) {\n return function (to, from, next) {\n var hasAsync = false;\n var pending = 0;\n var error = null;\n\n flatMapComponents(matched, function (def, _, match, key) {\n // if it's a function and doesn't have cid attached,\n // assume it's an async component resolve function.\n // we are not using Vue's default async resolving mechanism because\n // we want to halt the navigation until the incoming component has been\n // resolved.\n if (typeof def === 'function' && def.cid === undefined) {\n hasAsync = true;\n pending++;\n\n var resolve = once(function (resolvedDef) {\n // save resolved on async factory in case it's used elsewhere\n def.resolved = typeof resolvedDef === 'function'\n ? resolvedDef\n : _Vue.extend(resolvedDef);\n match.components[key] = resolvedDef;\n pending--;\n if (pending <= 0) {\n next();\n }\n });\n\n var reject = once(function (reason) {\n var msg = \"Failed to resolve async component \" + key + \": \" + reason;\n \"production\" !== 'production' && warn(false, msg);\n if (!error) {\n error = isError(reason)\n ? reason\n : new Error(msg);\n next(error);\n }\n });\n\n var res;\n try {\n res = def(resolve, reject);\n } catch (e) {\n reject(e);\n }\n if (res) {\n if (typeof res.then === 'function') {\n res.then(resolve, reject);\n } else {\n // new syntax in Vue 2.3\n var comp = res.component;\n if (comp && typeof comp.then === 'function') {\n comp.then(resolve, reject);\n }\n }\n }\n }\n });\n\n if (!hasAsync) { next(); }\n }\n}\n\nfunction flatMapComponents (\n matched,\n fn\n) {\n return flatten(matched.map(function (m) {\n return Object.keys(m.components).map(function (key) { return fn(\n m.components[key],\n m.instances[key],\n m, key\n ); })\n }))\n}\n\nfunction flatten (arr) {\n return Array.prototype.concat.apply([], arr)\n}\n\n// in Webpack 2, require.ensure now also returns a Promise\n// so the resolve/reject functions may get called an extra time\n// if the user uses an arrow function shorthand that happens to\n// return that Promise.\nfunction once (fn) {\n var called = false;\n return function () {\n if (called) { return }\n called = true;\n return fn.apply(this, arguments)\n }\n}\n\nfunction isError (err) {\n return Object.prototype.toString.call(err).indexOf('Error') > -1\n}\n\n/* */\n\n\nvar HTML5History = (function (History$$1) {\n function HTML5History (router, base) {\n var this$1 = this;\n\n History$$1.call(this, router, base);\n\n var expectScroll = router.options.scrollBehavior;\n\n if (expectScroll) {\n setupScroll();\n }\n\n window.addEventListener('popstate', function (e) {\n this$1.transitionTo(getLocation(this$1.base), function (route) {\n if (expectScroll) {\n handleScroll(router, route, this$1.current, true);\n }\n });\n });\n }\n\n if ( History$$1 ) HTML5History.__proto__ = History$$1;\n HTML5History.prototype = Object.create( History$$1 && History$$1.prototype );\n HTML5History.prototype.constructor = HTML5History;\n\n HTML5History.prototype.go = function go (n) {\n window.history.go(n);\n };\n\n HTML5History.prototype.push = function push (location, onComplete, onAbort) {\n var this$1 = this;\n\n var ref = this;\n var fromRoute = ref.current;\n this.transitionTo(location, function (route) {\n pushState(cleanPath(this$1.base + route.fullPath));\n handleScroll(this$1.router, route, fromRoute, false);\n onComplete && onComplete(route);\n }, onAbort);\n };\n\n HTML5History.prototype.replace = function replace (location, onComplete, onAbort) {\n var this$1 = this;\n\n var ref = this;\n var fromRoute = ref.current;\n this.transitionTo(location, function (route) {\n replaceState(cleanPath(this$1.base + route.fullPath));\n handleScroll(this$1.router, route, fromRoute, false);\n onComplete && onComplete(route);\n }, onAbort);\n };\n\n HTML5History.prototype.ensureURL = function ensureURL (push) {\n if (getLocation(this.base) !== this.current.fullPath) {\n var current = cleanPath(this.base + this.current.fullPath);\n push ? pushState(current) : replaceState(current);\n }\n };\n\n HTML5History.prototype.getCurrentLocation = function getCurrentLocation () {\n return getLocation(this.base)\n };\n\n return HTML5History;\n}(History));\n\nfunction getLocation (base) {\n var path = window.location.pathname;\n if (base && path.indexOf(base) === 0) {\n path = path.slice(base.length);\n }\n return (path || '/') + window.location.search + window.location.hash\n}\n\n/* */\n\n\nvar HashHistory = (function (History$$1) {\n function HashHistory (router, base, fallback) {\n History$$1.call(this, router, base);\n // check history fallback deeplinking\n if (fallback && checkFallback(this.base)) {\n return\n }\n ensureSlash();\n }\n\n if ( History$$1 ) HashHistory.__proto__ = History$$1;\n HashHistory.prototype = Object.create( History$$1 && History$$1.prototype );\n HashHistory.prototype.constructor = HashHistory;\n\n // this is delayed until the app mounts\n // to avoid the hashchange listener being fired too early\n HashHistory.prototype.setupListeners = function setupListeners () {\n var this$1 = this;\n\n window.addEventListener('hashchange', function () {\n if (!ensureSlash()) {\n return\n }\n this$1.transitionTo(getHash(), function (route) {\n replaceHash(route.fullPath);\n });\n });\n };\n\n HashHistory.prototype.push = function push (location, onComplete, onAbort) {\n this.transitionTo(location, function (route) {\n pushHash(route.fullPath);\n onComplete && onComplete(route);\n }, onAbort);\n };\n\n HashHistory.prototype.replace = function replace (location, onComplete, onAbort) {\n this.transitionTo(location, function (route) {\n replaceHash(route.fullPath);\n onComplete && onComplete(route);\n }, onAbort);\n };\n\n HashHistory.prototype.go = function go (n) {\n window.history.go(n);\n };\n\n HashHistory.prototype.ensureURL = function ensureURL (push) {\n var current = this.current.fullPath;\n if (getHash() !== current) {\n push ? pushHash(current) : replaceHash(current);\n }\n };\n\n HashHistory.prototype.getCurrentLocation = function getCurrentLocation () {\n return getHash()\n };\n\n return HashHistory;\n}(History));\n\nfunction checkFallback (base) {\n var location = getLocation(base);\n if (!/^\\/#/.test(location)) {\n window.location.replace(\n cleanPath(base + '/#' + location)\n );\n return true\n }\n}\n\nfunction ensureSlash () {\n var path = getHash();\n if (path.charAt(0) === '/') {\n return true\n }\n replaceHash('/' + path);\n return false\n}\n\nfunction getHash () {\n // We can't use window.location.hash here because it's not\n // consistent across browsers - Firefox will pre-decode it!\n var href = window.location.href;\n var index = href.indexOf('#');\n return index === -1 ? '' : href.slice(index + 1)\n}\n\nfunction pushHash (path) {\n window.location.hash = path;\n}\n\nfunction replaceHash (path) {\n var i = window.location.href.indexOf('#');\n window.location.replace(\n window.location.href.slice(0, i >= 0 ? i : 0) + '#' + path\n );\n}\n\n/* */\n\n\nvar AbstractHistory = (function (History$$1) {\n function AbstractHistory (router, base) {\n History$$1.call(this, router, base);\n this.stack = [];\n this.index = -1;\n }\n\n if ( History$$1 ) AbstractHistory.__proto__ = History$$1;\n AbstractHistory.prototype = Object.create( History$$1 && History$$1.prototype );\n AbstractHistory.prototype.constructor = AbstractHistory;\n\n AbstractHistory.prototype.push = function push (location, onComplete, onAbort) {\n var this$1 = this;\n\n this.transitionTo(location, function (route) {\n this$1.stack = this$1.stack.slice(0, this$1.index + 1).concat(route);\n this$1.index++;\n onComplete && onComplete(route);\n }, onAbort);\n };\n\n AbstractHistory.prototype.replace = function replace (location, onComplete, onAbort) {\n var this$1 = this;\n\n this.transitionTo(location, function (route) {\n this$1.stack = this$1.stack.slice(0, this$1.index).concat(route);\n onComplete && onComplete(route);\n }, onAbort);\n };\n\n AbstractHistory.prototype.go = function go (n) {\n var this$1 = this;\n\n var targetIndex = this.index + n;\n if (targetIndex < 0 || targetIndex >= this.stack.length) {\n return\n }\n var route = this.stack[targetIndex];\n this.confirmTransition(route, function () {\n this$1.index = targetIndex;\n this$1.updateRoute(route);\n });\n };\n\n AbstractHistory.prototype.getCurrentLocation = function getCurrentLocation () {\n var current = this.stack[this.stack.length - 1];\n return current ? current.fullPath : '/'\n };\n\n AbstractHistory.prototype.ensureURL = function ensureURL () {\n // noop\n };\n\n return AbstractHistory;\n}(History));\n\n/* */\n\nvar VueRouter = function VueRouter (options) {\n if ( options === void 0 ) options = {};\n\n this.app = null;\n this.apps = [];\n this.options = options;\n this.beforeHooks = [];\n this.resolveHooks = [];\n this.afterHooks = [];\n this.matcher = createMatcher(options.routes || [], this);\n\n var mode = options.mode || 'hash';\n this.fallback = mode === 'history' && !supportsPushState;\n if (this.fallback) {\n mode = 'hash';\n }\n if (!inBrowser) {\n mode = 'abstract';\n }\n this.mode = mode;\n\n switch (mode) {\n case 'history':\n this.history = new HTML5History(this, options.base);\n break\n case 'hash':\n this.history = new HashHistory(this, options.base, this.fallback);\n break\n case 'abstract':\n this.history = new AbstractHistory(this, options.base);\n break\n default:\n if (false) {\n assert(false, (\"invalid mode: \" + mode));\n }\n }\n};\n\nvar prototypeAccessors = { currentRoute: {} };\n\nVueRouter.prototype.match = function match (\n raw,\n current,\n redirectedFrom\n) {\n return this.matcher.match(raw, current, redirectedFrom)\n};\n\nprototypeAccessors.currentRoute.get = function () {\n return this.history && this.history.current\n};\n\nVueRouter.prototype.init = function init (app /* Vue component instance */) {\n var this$1 = this;\n\n \"production\" !== 'production' && assert(\n install.installed,\n \"not installed. Make sure to call `Vue.use(VueRouter)` \" +\n \"before creating root instance.\"\n );\n\n this.apps.push(app);\n\n // main app already initialized.\n if (this.app) {\n return\n }\n\n this.app = app;\n\n var history = this.history;\n\n if (history instanceof HTML5History) {\n history.transitionTo(history.getCurrentLocation());\n } else if (history instanceof HashHistory) {\n var setupHashListener = function () {\n history.setupListeners();\n };\n history.transitionTo(\n history.getCurrentLocation(),\n setupHashListener,\n setupHashListener\n );\n }\n\n history.listen(function (route) {\n this$1.apps.forEach(function (app) {\n app._route = route;\n });\n });\n};\n\nVueRouter.prototype.beforeEach = function beforeEach (fn) {\n return registerHook(this.beforeHooks, fn)\n};\n\nVueRouter.prototype.beforeResolve = function beforeResolve (fn) {\n return registerHook(this.resolveHooks, fn)\n};\n\nVueRouter.prototype.afterEach = function afterEach (fn) {\n return registerHook(this.afterHooks, fn)\n};\n\nVueRouter.prototype.onReady = function onReady (cb, errorCb) {\n this.history.onReady(cb, errorCb);\n};\n\nVueRouter.prototype.onError = function onError (errorCb) {\n this.history.onError(errorCb);\n};\n\nVueRouter.prototype.push = function push (location, onComplete, onAbort) {\n this.history.push(location, onComplete, onAbort);\n};\n\nVueRouter.prototype.replace = function replace (location, onComplete, onAbort) {\n this.history.replace(location, onComplete, onAbort);\n};\n\nVueRouter.prototype.go = function go (n) {\n this.history.go(n);\n};\n\nVueRouter.prototype.back = function back () {\n this.go(-1);\n};\n\nVueRouter.prototype.forward = function forward () {\n this.go(1);\n};\n\nVueRouter.prototype.getMatchedComponents = function getMatchedComponents (to) {\n var route = to\n ? to.matched\n ? to\n : this.resolve(to).route\n : this.currentRoute;\n if (!route) {\n return []\n }\n return [].concat.apply([], route.matched.map(function (m) {\n return Object.keys(m.components).map(function (key) {\n return m.components[key]\n })\n }))\n};\n\nVueRouter.prototype.resolve = function resolve (\n to,\n current,\n append\n) {\n var location = normalizeLocation(\n to,\n current || this.history.current,\n append,\n this\n );\n var route = this.match(location, current);\n var fullPath = route.redirectedFrom || route.fullPath;\n var base = this.history.base;\n var href = createHref(base, fullPath, this.mode);\n return {\n location: location,\n route: route,\n href: href,\n // for backwards compat\n normalizedTo: location,\n resolved: route\n }\n};\n\nVueRouter.prototype.addRoutes = function addRoutes (routes) {\n this.matcher.addRoutes(routes);\n if (this.history.current !== START) {\n this.history.transitionTo(this.history.getCurrentLocation());\n }\n};\n\nObject.defineProperties( VueRouter.prototype, prototypeAccessors );\n\nfunction registerHook (list, fn) {\n list.push(fn);\n return function () {\n var i = list.indexOf(fn);\n if (i > -1) { list.splice(i, 1); }\n }\n}\n\nfunction createHref (base, fullPath, mode) {\n var path = mode === 'hash' ? '#' + fullPath : fullPath;\n return base ? cleanPath(base + '/' + path) : path\n}\n\nVueRouter.install = install;\nVueRouter.version = '2.5.3';\n\nif (inBrowser && window.Vue) {\n window.Vue.use(VueRouter);\n}\n\n/* harmony default export */ __webpack_exports__[\"a\"] = (VueRouter);\n\n\n/***/ }),\n/* 55 */\n/***/ (function(module, exports) {\n\n/**\n * Translates the list format produced by css-loader into something\n * easier to manipulate.\n */\nmodule.exports = function listToStyles (parentId, list) {\n var styles = []\n var newStyles = {}\n for (var i = 0; i < list.length; i++) {\n var item = list[i]\n var id = item[0]\n var css = item[1]\n var media = item[2]\n var sourceMap = item[3]\n var part = {\n id: parentId + ':' + i,\n css: css,\n media: media,\n sourceMap: sourceMap\n }\n if (!newStyles[id]) {\n styles.push(newStyles[id] = { id: id, parts: [part] })\n } else {\n newStyles[id].parts.push(part)\n }\n }\n return styles\n}\n\n\n/***/ }),\n/* 56 */\n/***/ (function(module, exports) {\n\n/*\n\tMIT License http://www.opensource.org/licenses/mit-license.php\n\tAuthor Tobias Koppers @sokra\n*/\n// css base code, injected by the css-loader\nmodule.exports = function(useSourceMap) {\n\tvar list = [];\n\n\t// return the list of modules as css string\n\tlist.toString = function toString() {\n\t\treturn this.map(function (item) {\n\t\t\tvar content = cssWithMappingToString(item, useSourceMap);\n\t\t\tif(item[2]) {\n\t\t\t\treturn \"@media \" + item[2] + \"{\" + content + \"}\";\n\t\t\t} else {\n\t\t\t\treturn content;\n\t\t\t}\n\t\t}).join(\"\");\n\t};\n\n\t// import a list of modules into the list\n\tlist.i = function(modules, mediaQuery) {\n\t\tif(typeof modules === \"string\")\n\t\t\tmodules = [[null, modules, \"\"]];\n\t\tvar alreadyImportedModules = {};\n\t\tfor(var i = 0; i < this.length; i++) {\n\t\t\tvar id = this[i][0];\n\t\t\tif(typeof id === \"number\")\n\t\t\t\talreadyImportedModules[id] = true;\n\t\t}\n\t\tfor(i = 0; i < modules.length; i++) {\n\t\t\tvar item = modules[i];\n\t\t\t// skip already imported module\n\t\t\t// this implementation is not 100% perfect for weird media query combinations\n\t\t\t// when a module is imported multiple times with different media queries.\n\t\t\t// I hope this will never occur (Hey this way we have smaller bundles)\n\t\t\tif(typeof item[0] !== \"number\" || !alreadyImportedModules[item[0]]) {\n\t\t\t\tif(mediaQuery && !item[2]) {\n\t\t\t\t\titem[2] = mediaQuery;\n\t\t\t\t} else if(mediaQuery) {\n\t\t\t\t\titem[2] = \"(\" + item[2] + \") and (\" + mediaQuery + \")\";\n\t\t\t\t}\n\t\t\t\tlist.push(item);\n\t\t\t}\n\t\t}\n\t};\n\treturn list;\n};\n\nfunction cssWithMappingToString(item, useSourceMap) {\n\tvar content = item[1] || '';\n\tvar cssMapping = item[3];\n\tif (!cssMapping) {\n\t\treturn content;\n\t}\n\n\tif (useSourceMap && typeof btoa === 'function') {\n\t\tvar sourceMapping = toComment(cssMapping);\n\t\tvar sourceURLs = cssMapping.sources.map(function (source) {\n\t\t\treturn '/*# sourceURL=' + cssMapping.sourceRoot + source + ' */'\n\t\t});\n\n\t\treturn [content].concat(sourceURLs).concat([sourceMapping]).join('\\n');\n\t}\n\n\treturn [content].join('\\n');\n}\n\n// Adapted from convert-source-map (MIT)\nfunction toComment(sourceMap) {\n\t// eslint-disable-next-line no-undef\n\tvar base64 = btoa(unescape(encodeURIComponent(JSON.stringify(sourceMap))));\n\tvar data = 'sourceMappingURL=data:application/json;charset=utf-8;base64,' + base64;\n\n\treturn '/*# ' + data + ' */';\n}\n\n\n/***/ }),\n/* 57 */\n/***/ (function(module, exports, __webpack_require__) {\n\n/*\n MIT License http://www.opensource.org/licenses/mit-license.php\n Author Tobias Koppers @sokra\n Modified by Evan You @yyx990803\n*/\n\nvar hasDocument = typeof document !== 'undefined'\n\nif (typeof DEBUG !== 'undefined' && DEBUG) {\n if (!hasDocument) {\n throw new Error(\n 'vue-style-loader cannot be used in a non-browser environment. ' +\n \"Use { target: 'node' } in your Webpack config to indicate a server-rendering environment.\"\n ) }\n}\n\nvar listToStyles = __webpack_require__(55)\n\n/*\ntype StyleObject = {\n id: number;\n parts: Array\n}\n\ntype StyleObjectPart = {\n css: string;\n media: string;\n sourceMap: ?string\n}\n*/\n\nvar stylesInDom = {/*\n [id: number]: {\n id: number,\n refs: number,\n parts: Array<(obj?: StyleObjectPart) => void>\n }\n*/}\n\nvar head = hasDocument && (document.head || document.getElementsByTagName('head')[0])\nvar singletonElement = null\nvar singletonCounter = 0\nvar isProduction = false\nvar noop = function () {}\n\n// Force single-tag solution on IE6-9, which has a hard limit on the # of