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"../../../node_modules/trix/src/trix/models/text.js", "../../../node_modules/trix/src/trix/models/block.js", "../../../node_modules/trix/src/trix/models/document.js", "../../../node_modules/trix/src/trix/models/html_sanitizer.js", "../../../node_modules/trix/src/trix/models/html_parser.js", "../../../node_modules/trix/src/trix/core/serialization.js", "../../../node_modules/trix/src/trix/models/managed_attachment.js", "../../../node_modules/trix/src/trix/models/attachment_manager.js", "../../../node_modules/trix/src/trix/models/line_break_insertion.js", "../../../node_modules/trix/src/trix/models/composition.js", "../../../node_modules/trix/src/trix/models/undo_manager.js", "../../../node_modules/trix/src/trix/filters/filter.js", "../../../node_modules/trix/src/trix/filters/attachment_gallery_filter.js", "../../../node_modules/trix/src/trix/models/editor.js", "../../../node_modules/trix/src/trix/models/location_mapper.js", "../../../node_modules/trix/src/trix/models/point_mapper.js", "../../../node_modules/trix/src/trix/models/selection_manager.js", "../../../node_modules/trix/src/trix/controllers/attachment_editor_controller.js", "../../../node_modules/trix/src/trix/controllers/composition_controller.js", "../../../node_modules/trix/src/trix/controllers/controller.js", "../../../node_modules/trix/src/trix/observers/mutation_observer.js", "../../../node_modules/trix/src/trix/operations/file_verification_operation.js", "../../../node_modules/trix/src/trix/models/flaky_android_keyboard_detector.js", "../../../node_modules/trix/src/trix/controllers/input_controller.js", "../../../node_modules/trix/src/trix/controllers/level_0_input_controller.js", "../../../node_modules/trix/src/trix/controllers/level_2_input_controller.js", "../../../node_modules/trix/src/trix/controllers/toolbar_controller.js", "../../../node_modules/trix/src/trix/controllers/editor_controller.js", "../../../node_modules/trix/src/trix/elements/trix_toolbar_element.js", "../../../node_modules/trix/src/trix/elements/trix_editor_element.js", "../../../node_modules/trix/src/trix/trix.js", "../../javascript/components/trix.js"], "sourcesContent": ["export default {\n logger: self.console,\n WebSocket: self.WebSocket\n}\n", "import adapters from \"./adapters\"\n\n// The logger is disabled by default. You can enable it with:\n//\n// ActionCable.logger.enabled = true\n//\n// Example:\n//\n// import * as ActionCable from '@rails/actioncable'\n//\n// ActionCable.logger.enabled = true\n// ActionCable.logger.log('Connection Established.')\n//\n\nexport default {\n log(...messages) {\n if (this.enabled) {\n messages.push(Date.now())\n adapters.logger.log(\"[ActionCable]\", ...messages)\n }\n },\n}\n", "import logger from \"./logger\"\n\n// Responsible for ensuring the cable connection is in good health by validating the heartbeat pings sent from the server, and attempting\n// revival reconnections if things go astray. Internal class, not intended for direct user manipulation.\n\nconst now = () => new Date().getTime()\n\nconst secondsSince = time => (now() - time) / 1000\n\nclass ConnectionMonitor {\n constructor(connection) {\n this.visibilityDidChange = this.visibilityDidChange.bind(this)\n this.connection = connection\n this.reconnectAttempts = 0\n }\n\n start() {\n if (!this.isRunning()) {\n this.startedAt = now()\n delete this.stoppedAt\n this.startPolling()\n addEventListener(\"visibilitychange\", this.visibilityDidChange)\n logger.log(`ConnectionMonitor started. stale threshold = ${this.constructor.staleThreshold} s`)\n }\n }\n\n stop() {\n if (this.isRunning()) {\n this.stoppedAt = now()\n this.stopPolling()\n removeEventListener(\"visibilitychange\", this.visibilityDidChange)\n logger.log(\"ConnectionMonitor stopped\")\n }\n }\n\n isRunning() {\n return this.startedAt && !this.stoppedAt\n }\n\n recordPing() {\n this.pingedAt = now()\n }\n\n recordConnect() {\n this.reconnectAttempts = 0\n this.recordPing()\n delete this.disconnectedAt\n logger.log(\"ConnectionMonitor recorded connect\")\n }\n\n recordDisconnect() {\n this.disconnectedAt = now()\n logger.log(\"ConnectionMonitor recorded disconnect\")\n }\n\n // Private\n\n startPolling() {\n this.stopPolling()\n this.poll()\n }\n\n stopPolling() {\n clearTimeout(this.pollTimeout)\n }\n\n poll() {\n this.pollTimeout = setTimeout(() => {\n this.reconnectIfStale()\n this.poll()\n }\n , this.getPollInterval())\n }\n\n getPollInterval() {\n const { staleThreshold, reconnectionBackoffRate } = this.constructor\n const backoff = Math.pow(1 + reconnectionBackoffRate, Math.min(this.reconnectAttempts, 10))\n const jitterMax = this.reconnectAttempts === 0 ? 1.0 : reconnectionBackoffRate\n const jitter = jitterMax * Math.random()\n return staleThreshold * 1000 * backoff * (1 + jitter)\n }\n\n reconnectIfStale() {\n if (this.connectionIsStale()) {\n logger.log(`ConnectionMonitor detected stale connection. reconnectAttempts = ${this.reconnectAttempts}, time stale = ${secondsSince(this.refreshedAt)} s, stale threshold = ${this.constructor.staleThreshold} s`)\n this.reconnectAttempts++\n if (this.disconnectedRecently()) {\n logger.log(`ConnectionMonitor skipping reopening recent disconnect. time disconnected = ${secondsSince(this.disconnectedAt)} s`)\n } else {\n logger.log(\"ConnectionMonitor reopening\")\n this.connection.reopen()\n }\n }\n }\n\n get refreshedAt() {\n return this.pingedAt ? this.pingedAt : this.startedAt\n }\n\n connectionIsStale() {\n return secondsSince(this.refreshedAt) > this.constructor.staleThreshold\n }\n\n disconnectedRecently() {\n return this.disconnectedAt && (secondsSince(this.disconnectedAt) < this.constructor.staleThreshold)\n }\n\n visibilityDidChange() {\n if (document.visibilityState === \"visible\") {\n setTimeout(() => {\n if (this.connectionIsStale() || !this.connection.isOpen()) {\n logger.log(`ConnectionMonitor reopening stale connection on visibilitychange. visibilityState = ${document.visibilityState}`)\n this.connection.reopen()\n }\n }\n , 200)\n }\n }\n\n}\n\nConnectionMonitor.staleThreshold = 6 // Server::Connections::BEAT_INTERVAL * 2 (missed two pings)\nConnectionMonitor.reconnectionBackoffRate = 0.15\n\nexport default ConnectionMonitor\n", "export default {\n \"message_types\": {\n \"welcome\": \"welcome\",\n \"disconnect\": \"disconnect\",\n \"ping\": \"ping\",\n \"confirmation\": \"confirm_subscription\",\n \"rejection\": \"reject_subscription\"\n },\n \"disconnect_reasons\": {\n \"unauthorized\": \"unauthorized\",\n \"invalid_request\": \"invalid_request\",\n \"server_restart\": \"server_restart\",\n \"remote\": \"remote\"\n },\n \"default_mount_path\": \"/cable\",\n \"protocols\": [\n \"actioncable-v1-json\",\n \"actioncable-unsupported\"\n ]\n}\n", "import adapters from \"./adapters\"\nimport ConnectionMonitor from \"./connection_monitor\"\nimport INTERNAL from \"./internal\"\nimport logger from \"./logger\"\n\n// Encapsulate the cable connection held by the consumer. This is an internal class not intended for direct user manipulation.\n\nconst {message_types, protocols} = INTERNAL\nconst supportedProtocols = protocols.slice(0, protocols.length - 1)\n\nconst indexOf = [].indexOf\n\nclass Connection {\n constructor(consumer) {\n this.open = this.open.bind(this)\n this.consumer = consumer\n this.subscriptions = this.consumer.subscriptions\n this.monitor = new ConnectionMonitor(this)\n this.disconnected = true\n }\n\n send(data) {\n if (this.isOpen()) {\n this.webSocket.send(JSON.stringify(data))\n return true\n } else {\n return false\n }\n }\n\n open() {\n if (this.isActive()) {\n logger.log(`Attempted to open WebSocket, but existing socket is ${this.getState()}`)\n return false\n } else {\n const socketProtocols = [...protocols, ...this.consumer.subprotocols || []]\n logger.log(`Opening WebSocket, current state is ${this.getState()}, subprotocols: ${socketProtocols}`)\n if (this.webSocket) { this.uninstallEventHandlers() }\n this.webSocket = new adapters.WebSocket(this.consumer.url, socketProtocols)\n this.installEventHandlers()\n this.monitor.start()\n return true\n }\n }\n\n close({allowReconnect} = {allowReconnect: true}) {\n if (!allowReconnect) { this.monitor.stop() }\n // Avoid closing websockets in a \"connecting\" state due to Safari 15.1+ bug. See: https://github.com/rails/rails/issues/43835#issuecomment-1002288478\n if (this.isOpen()) {\n return this.webSocket.close()\n }\n }\n\n reopen() {\n logger.log(`Reopening WebSocket, current state is ${this.getState()}`)\n if (this.isActive()) {\n try {\n return this.close()\n } catch (error) {\n logger.log(\"Failed to reopen WebSocket\", error)\n }\n finally {\n logger.log(`Reopening WebSocket in ${this.constructor.reopenDelay}ms`)\n setTimeout(this.open, this.constructor.reopenDelay)\n }\n } else {\n return this.open()\n }\n }\n\n getProtocol() {\n if (this.webSocket) {\n return this.webSocket.protocol\n }\n }\n\n isOpen() {\n return this.isState(\"open\")\n }\n\n isActive() {\n return this.isState(\"open\", \"connecting\")\n }\n\n triedToReconnect() {\n return this.monitor.reconnectAttempts > 0\n }\n\n // Private\n\n isProtocolSupported() {\n return indexOf.call(supportedProtocols, this.getProtocol()) >= 0\n }\n\n isState(...states) {\n return indexOf.call(states, this.getState()) >= 0\n }\n\n getState() {\n if (this.webSocket) {\n for (let state in adapters.WebSocket) {\n if (adapters.WebSocket[state] === this.webSocket.readyState) {\n return state.toLowerCase()\n }\n }\n }\n return null\n }\n\n installEventHandlers() {\n for (let eventName in this.events) {\n const handler = this.events[eventName].bind(this)\n this.webSocket[`on${eventName}`] = handler\n }\n }\n\n uninstallEventHandlers() {\n for (let eventName in this.events) {\n this.webSocket[`on${eventName}`] = function() {}\n }\n }\n\n}\n\nConnection.reopenDelay = 500\n\nConnection.prototype.events = {\n message(event) {\n if (!this.isProtocolSupported()) { return }\n const {identifier, message, reason, reconnect, type} = JSON.parse(event.data)\n switch (type) {\n case message_types.welcome:\n if (this.triedToReconnect()) {\n this.reconnectAttempted = true\n }\n this.monitor.recordConnect()\n return this.subscriptions.reload()\n case message_types.disconnect:\n logger.log(`Disconnecting. Reason: ${reason}`)\n return this.close({allowReconnect: reconnect})\n case message_types.ping:\n return this.monitor.recordPing()\n case message_types.confirmation:\n this.subscriptions.confirmSubscription(identifier)\n if (this.reconnectAttempted) {\n this.reconnectAttempted = false\n return this.subscriptions.notify(identifier, \"connected\", {reconnected: true})\n } else {\n return this.subscriptions.notify(identifier, \"connected\", {reconnected: false})\n }\n case message_types.rejection:\n return this.subscriptions.reject(identifier)\n default:\n return this.subscriptions.notify(identifier, \"received\", message)\n }\n },\n\n open() {\n logger.log(`WebSocket onopen event, using '${this.getProtocol()}' subprotocol`)\n this.disconnected = false\n if (!this.isProtocolSupported()) {\n logger.log(\"Protocol is unsupported. Stopping monitor and disconnecting.\")\n return this.close({allowReconnect: false})\n }\n },\n\n close(event) {\n logger.log(\"WebSocket onclose event\")\n if (this.disconnected) { return }\n this.disconnected = true\n this.monitor.recordDisconnect()\n return this.subscriptions.notifyAll(\"disconnected\", {willAttemptReconnect: this.monitor.isRunning()})\n },\n\n error() {\n logger.log(\"WebSocket onerror event\")\n }\n}\n\nexport default Connection\n", "// A new subscription is created through the ActionCable.Subscriptions instance available on the consumer.\n// It provides a number of callbacks and a method for calling remote procedure calls on the corresponding\n// Channel instance on the server side.\n//\n// An example demonstrates the basic functionality:\n//\n// App.appearance = App.cable.subscriptions.create(\"AppearanceChannel\", {\n// connected() {\n// // Called once the subscription has been successfully completed\n// },\n//\n// disconnected({ willAttemptReconnect: boolean }) {\n// // Called when the client has disconnected with the server.\n// // The object will have an `willAttemptReconnect` property which\n// // says whether the client has the intention of attempting\n// // to reconnect.\n// },\n//\n// appear() {\n// this.perform('appear', {appearing_on: this.appearingOn()})\n// },\n//\n// away() {\n// this.perform('away')\n// },\n//\n// appearingOn() {\n// $('main').data('appearing-on')\n// }\n// })\n//\n// The methods #appear and #away forward their intent to the remote AppearanceChannel instance on the server\n// by calling the `perform` method with the first parameter being the action (which maps to AppearanceChannel#appear/away).\n// The second parameter is a hash that'll get JSON encoded and made available on the server in the data parameter.\n//\n// This is how the server component would look:\n//\n// class AppearanceChannel < ApplicationActionCable::Channel\n// def subscribed\n// current_user.appear\n// end\n//\n// def unsubscribed\n// current_user.disappear\n// end\n//\n// def appear(data)\n// current_user.appear on: data['appearing_on']\n// end\n//\n// def away\n// current_user.away\n// end\n// end\n//\n// The \"AppearanceChannel\" name is automatically mapped between the client-side subscription creation and the server-side Ruby class name.\n// The AppearanceChannel#appear/away public methods are exposed automatically to client-side invocation through the perform method.\n\nconst extend = function(object, properties) {\n if (properties != null) {\n for (let key in properties) {\n const value = properties[key]\n object[key] = value\n }\n }\n return object\n}\n\nexport default class Subscription {\n constructor(consumer, params = {}, mixin) {\n this.consumer = consumer\n this.identifier = JSON.stringify(params)\n extend(this, mixin)\n }\n\n // Perform a channel action with the optional data passed as an attribute\n perform(action, data = {}) {\n data.action = action\n return this.send(data)\n }\n\n send(data) {\n return this.consumer.send({command: \"message\", identifier: this.identifier, data: JSON.stringify(data)})\n }\n\n unsubscribe() {\n return this.consumer.subscriptions.remove(this)\n }\n}\n", "import logger from \"./logger\"\n\n// Responsible for ensuring channel subscribe command is confirmed, retrying until confirmation is received.\n// Internal class, not intended for direct user manipulation.\n\nclass SubscriptionGuarantor {\n constructor(subscriptions) {\n this.subscriptions = subscriptions\n this.pendingSubscriptions = []\n }\n\n guarantee(subscription) {\n if(this.pendingSubscriptions.indexOf(subscription) == -1){ \n logger.log(`SubscriptionGuarantor guaranteeing ${subscription.identifier}`)\n this.pendingSubscriptions.push(subscription) \n }\n else {\n logger.log(`SubscriptionGuarantor already guaranteeing ${subscription.identifier}`)\n }\n this.startGuaranteeing()\n }\n\n forget(subscription) {\n logger.log(`SubscriptionGuarantor forgetting ${subscription.identifier}`)\n this.pendingSubscriptions = (this.pendingSubscriptions.filter((s) => s !== subscription))\n }\n\n startGuaranteeing() {\n this.stopGuaranteeing()\n this.retrySubscribing()\n }\n \n stopGuaranteeing() {\n clearTimeout(this.retryTimeout)\n }\n\n retrySubscribing() {\n this.retryTimeout = setTimeout(() => {\n if (this.subscriptions && typeof(this.subscriptions.subscribe) === \"function\") {\n this.pendingSubscriptions.map((subscription) => {\n logger.log(`SubscriptionGuarantor resubscribing ${subscription.identifier}`)\n this.subscriptions.subscribe(subscription)\n })\n }\n }\n , 500)\n }\n}\n\nexport default SubscriptionGuarantor", "import Subscription from \"./subscription\"\nimport SubscriptionGuarantor from \"./subscription_guarantor\"\nimport logger from \"./logger\"\n\n// Collection class for creating (and internally managing) channel subscriptions.\n// The only method intended to be triggered by the user is ActionCable.Subscriptions#create,\n// and it should be called through the consumer like so:\n//\n// App = {}\n// App.cable = ActionCable.createConsumer(\"ws://example.com/accounts/1\")\n// App.appearance = App.cable.subscriptions.create(\"AppearanceChannel\")\n//\n// For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription.\n\nexport default class Subscriptions {\n constructor(consumer) {\n this.consumer = consumer\n this.guarantor = new SubscriptionGuarantor(this)\n this.subscriptions = []\n }\n\n create(channelName, mixin) {\n const channel = channelName\n const params = typeof channel === \"object\" ? channel : {channel}\n const subscription = new Subscription(this.consumer, params, mixin)\n return this.add(subscription)\n }\n\n // Private\n\n add(subscription) {\n this.subscriptions.push(subscription)\n this.consumer.ensureActiveConnection()\n this.notify(subscription, \"initialized\")\n this.subscribe(subscription)\n return subscription\n }\n\n remove(subscription) {\n this.forget(subscription)\n if (!this.findAll(subscription.identifier).length) {\n this.sendCommand(subscription, \"unsubscribe\")\n }\n return subscription\n }\n\n reject(identifier) {\n return this.findAll(identifier).map((subscription) => {\n this.forget(subscription)\n this.notify(subscription, \"rejected\")\n return subscription\n })\n }\n\n forget(subscription) {\n this.guarantor.forget(subscription)\n this.subscriptions = (this.subscriptions.filter((s) => s !== subscription))\n return subscription\n }\n\n findAll(identifier) {\n return this.subscriptions.filter((s) => s.identifier === identifier)\n }\n\n reload() {\n return this.subscriptions.map((subscription) =>\n this.subscribe(subscription))\n }\n\n notifyAll(callbackName, ...args) {\n return this.subscriptions.map((subscription) =>\n this.notify(subscription, callbackName, ...args))\n }\n\n notify(subscription, callbackName, ...args) {\n let subscriptions\n if (typeof subscription === \"string\") {\n subscriptions = this.findAll(subscription)\n } else {\n subscriptions = [subscription]\n }\n\n return subscriptions.map((subscription) =>\n (typeof subscription[callbackName] === \"function\" ? subscription[callbackName](...args) : undefined))\n }\n\n subscribe(subscription) {\n if (this.sendCommand(subscription, \"subscribe\")) {\n this.guarantor.guarantee(subscription)\n }\n }\n\n confirmSubscription(identifier) {\n logger.log(`Subscription confirmed ${identifier}`)\n this.findAll(identifier).map((subscription) =>\n this.guarantor.forget(subscription))\n }\n\n sendCommand(subscription, command) {\n const {identifier} = subscription\n return this.consumer.send({command, identifier})\n }\n}\n", "import Connection from \"./connection\"\nimport Subscriptions from \"./subscriptions\"\n\n// The ActionCable.Consumer establishes the connection to a server-side Ruby Connection object. Once established,\n// the ActionCable.ConnectionMonitor will ensure that its properly maintained through heartbeats and checking for stale updates.\n// The Consumer instance is also the gateway to establishing subscriptions to desired channels through the #createSubscription\n// method.\n//\n// The following example shows how this can be set up:\n//\n// App = {}\n// App.cable = ActionCable.createConsumer(\"ws://example.com/accounts/1\")\n// App.appearance = App.cable.subscriptions.create(\"AppearanceChannel\")\n//\n// For more details on how you'd configure an actual channel subscription, see ActionCable.Subscription.\n//\n// When a consumer is created, it automatically connects with the server.\n//\n// To disconnect from the server, call\n//\n// App.cable.disconnect()\n//\n// and to restart the connection:\n//\n// App.cable.connect()\n//\n// Any channel subscriptions which existed prior to disconnecting will\n// automatically resubscribe.\n\nexport default class Consumer {\n constructor(url) {\n this._url = url\n this.subscriptions = new Subscriptions(this)\n this.connection = new Connection(this)\n this.subprotocols = []\n }\n\n get url() {\n return createWebSocketURL(this._url)\n }\n\n send(data) {\n return this.connection.send(data)\n }\n\n connect() {\n return this.connection.open()\n }\n\n disconnect() {\n return this.connection.close({allowReconnect: false})\n }\n\n ensureActiveConnection() {\n if (!this.connection.isActive()) {\n return this.connection.open()\n }\n }\n\n addSubProtocol(subprotocol) {\n this.subprotocols = [...this.subprotocols, subprotocol]\n }\n}\n\nexport function createWebSocketURL(url) {\n if (typeof url === \"function\") {\n url = url()\n }\n\n if (url && !/^wss?:/i.test(url)) {\n const a = document.createElement(\"a\")\n a.href = url\n // Fix populating Location properties in IE. Otherwise, protocol will be blank.\n a.href = a.href\n a.protocol = a.protocol.replace(\"http\", \"ws\")\n return a.href\n } else {\n return url\n }\n}\n", "import Connection from \"./connection\"\nimport ConnectionMonitor from \"./connection_monitor\"\nimport Consumer, { createWebSocketURL } from \"./consumer\"\nimport INTERNAL from \"./internal\"\nimport Subscription from \"./subscription\"\nimport Subscriptions from \"./subscriptions\"\nimport SubscriptionGuarantor from \"./subscription_guarantor\"\nimport adapters from \"./adapters\"\nimport logger from \"./logger\"\n\nexport {\n Connection,\n ConnectionMonitor,\n Consumer,\n INTERNAL,\n Subscription,\n Subscriptions,\n SubscriptionGuarantor,\n adapters,\n createWebSocketURL,\n logger,\n}\n\nexport function createConsumer(url = getConfig(\"url\") || INTERNAL.default_mount_path) {\n return new Consumer(url)\n}\n\nexport function getConfig(name) {\n const element = document.head.querySelector(`meta[name='action-cable-${name}']`)\n if (element) {\n return element.getAttribute(\"content\")\n }\n}\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap dom/data.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\n/**\n * Constants\n */\n\nconst elementMap = new Map()\n\nexport default {\n set(element, key, instance) {\n if (!elementMap.has(element)) {\n elementMap.set(element, new Map())\n }\n\n const instanceMap = elementMap.get(element)\n\n // make it clear we only want one instance per element\n // can be removed later when multiple key/instances are fine to be used\n if (!instanceMap.has(key) && instanceMap.size !== 0) {\n // eslint-disable-next-line no-console\n console.error(`Bootstrap doesn't allow more than one instance per element. Bound instance: ${Array.from(instanceMap.keys())[0]}.`)\n return\n }\n\n instanceMap.set(key, instance)\n },\n\n get(element, key) {\n if (elementMap.has(element)) {\n return elementMap.get(element).get(key) || null\n }\n\n return null\n },\n\n remove(element, key) {\n if (!elementMap.has(element)) {\n return\n }\n\n const instanceMap = elementMap.get(element)\n\n instanceMap.delete(key)\n\n // free up element references if there are no instances left for an element\n if (instanceMap.size === 0) {\n elementMap.delete(element)\n }\n }\n}\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap util/index.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nconst MAX_UID = 1_000_000\nconst MILLISECONDS_MULTIPLIER = 1000\nconst TRANSITION_END = 'transitionend'\n\n/**\n * Properly escape IDs selectors to handle weird IDs\n * @param {string} selector\n * @returns {string}\n */\nconst parseSelector = selector => {\n if (selector && window.CSS && window.CSS.escape) {\n // document.querySelector needs escaping to handle IDs (html5+) containing for instance /\n selector = selector.replace(/#([^\\s\"#']+)/g, (match, id) => `#${CSS.escape(id)}`)\n }\n\n return selector\n}\n\n// Shout-out Angus Croll (https://goo.gl/pxwQGp)\nconst toType = object => {\n if (object === null || object === undefined) {\n return `${object}`\n }\n\n return Object.prototype.toString.call(object).match(/\\s([a-z]+)/i)[1].toLowerCase()\n}\n\n/**\n * Public Util API\n */\n\nconst getUID = prefix => {\n do {\n prefix += Math.floor(Math.random() * MAX_UID)\n } while (document.getElementById(prefix))\n\n return prefix\n}\n\nconst getTransitionDurationFromElement = element => {\n if (!element) {\n return 0\n }\n\n // Get transition-duration of the element\n let { transitionDuration, transitionDelay } = window.getComputedStyle(element)\n\n const floatTransitionDuration = Number.parseFloat(transitionDuration)\n const floatTransitionDelay = Number.parseFloat(transitionDelay)\n\n // Return 0 if element or transition duration is not found\n if (!floatTransitionDuration && !floatTransitionDelay) {\n return 0\n }\n\n // If multiple durations are defined, take the first\n transitionDuration = transitionDuration.split(',')[0]\n transitionDelay = transitionDelay.split(',')[0]\n\n return (Number.parseFloat(transitionDuration) + Number.parseFloat(transitionDelay)) * MILLISECONDS_MULTIPLIER\n}\n\nconst triggerTransitionEnd = element => {\n element.dispatchEvent(new Event(TRANSITION_END))\n}\n\nconst isElement = object => {\n if (!object || typeof object !== 'object') {\n return false\n }\n\n if (typeof object.jquery !== 'undefined') {\n object = object[0]\n }\n\n return typeof object.nodeType !== 'undefined'\n}\n\nconst getElement = object => {\n // it's a jQuery object or a node element\n if (isElement(object)) {\n return object.jquery ? object[0] : object\n }\n\n if (typeof object === 'string' && object.length > 0) {\n return document.querySelector(parseSelector(object))\n }\n\n return null\n}\n\nconst isVisible = element => {\n if (!isElement(element) || element.getClientRects().length === 0) {\n return false\n }\n\n const elementIsVisible = getComputedStyle(element).getPropertyValue('visibility') === 'visible'\n // Handle `details` element as its content may falsie appear visible when it is closed\n const closedDetails = element.closest('details:not([open])')\n\n if (!closedDetails) {\n return elementIsVisible\n }\n\n if (closedDetails !== element) {\n const summary = element.closest('summary')\n if (summary && summary.parentNode !== closedDetails) {\n return false\n }\n\n if (summary === null) {\n return false\n }\n }\n\n return elementIsVisible\n}\n\nconst isDisabled = element => {\n if (!element || element.nodeType !== Node.ELEMENT_NODE) {\n return true\n }\n\n if (element.classList.contains('disabled')) {\n return true\n }\n\n if (typeof element.disabled !== 'undefined') {\n return element.disabled\n }\n\n return element.hasAttribute('disabled') && element.getAttribute('disabled') !== 'false'\n}\n\nconst findShadowRoot = element => {\n if (!document.documentElement.attachShadow) {\n return null\n }\n\n // Can find the shadow root otherwise it'll return the document\n if (typeof element.getRootNode === 'function') {\n const root = element.getRootNode()\n return root instanceof ShadowRoot ? root : null\n }\n\n if (element instanceof ShadowRoot) {\n return element\n }\n\n // when we don't find a shadow root\n if (!element.parentNode) {\n return null\n }\n\n return findShadowRoot(element.parentNode)\n}\n\nconst noop = () => {}\n\n/**\n * Trick to restart an element's animation\n *\n * @param {HTMLElement} element\n * @return void\n *\n * @see https://www.charistheo.io/blog/2021/02/restart-a-css-animation-with-javascript/#restarting-a-css-animation\n */\nconst reflow = element => {\n element.offsetHeight // eslint-disable-line no-unused-expressions\n}\n\nconst getjQuery = () => {\n if (window.jQuery && !document.body.hasAttribute('data-bs-no-jquery')) {\n return window.jQuery\n }\n\n return null\n}\n\nconst DOMContentLoadedCallbacks = []\n\nconst onDOMContentLoaded = callback => {\n if (document.readyState === 'loading') {\n // add listener on the first call when the document is in loading state\n if (!DOMContentLoadedCallbacks.length) {\n document.addEventListener('DOMContentLoaded', () => {\n for (const callback of DOMContentLoadedCallbacks) {\n callback()\n }\n })\n }\n\n DOMContentLoadedCallbacks.push(callback)\n } else {\n callback()\n }\n}\n\nconst isRTL = () => document.documentElement.dir === 'rtl'\n\nconst defineJQueryPlugin = plugin => {\n onDOMContentLoaded(() => {\n const $ = getjQuery()\n /* istanbul ignore if */\n if ($) {\n const name = plugin.NAME\n const JQUERY_NO_CONFLICT = $.fn[name]\n $.fn[name] = plugin.jQueryInterface\n $.fn[name].Constructor = plugin\n $.fn[name].noConflict = () => {\n $.fn[name] = JQUERY_NO_CONFLICT\n return plugin.jQueryInterface\n }\n }\n })\n}\n\nconst execute = (possibleCallback, args = [], defaultValue = possibleCallback) => {\n return typeof possibleCallback === 'function' ? possibleCallback(...args) : defaultValue\n}\n\nconst executeAfterTransition = (callback, transitionElement, waitForTransition = true) => {\n if (!waitForTransition) {\n execute(callback)\n return\n }\n\n const durationPadding = 5\n const emulatedDuration = getTransitionDurationFromElement(transitionElement) + durationPadding\n\n let called = false\n\n const handler = ({ target }) => {\n if (target !== transitionElement) {\n return\n }\n\n called = true\n transitionElement.removeEventListener(TRANSITION_END, handler)\n execute(callback)\n }\n\n transitionElement.addEventListener(TRANSITION_END, handler)\n setTimeout(() => {\n if (!called) {\n triggerTransitionEnd(transitionElement)\n }\n }, emulatedDuration)\n}\n\n/**\n * Return the previous/next element of a list.\n *\n * @param {array} list The list of elements\n * @param activeElement The active element\n * @param shouldGetNext Choose to get next or previous element\n * @param isCycleAllowed\n * @return {Element|elem} The proper element\n */\nconst getNextActiveElement = (list, activeElement, shouldGetNext, isCycleAllowed) => {\n const listLength = list.length\n let index = list.indexOf(activeElement)\n\n // if the element does not exist in the list return an element\n // depending on the direction and if cycle is allowed\n if (index === -1) {\n return !shouldGetNext && isCycleAllowed ? list[listLength - 1] : list[0]\n }\n\n index += shouldGetNext ? 1 : -1\n\n if (isCycleAllowed) {\n index = (index + listLength) % listLength\n }\n\n return list[Math.max(0, Math.min(index, listLength - 1))]\n}\n\nexport {\n defineJQueryPlugin,\n execute,\n executeAfterTransition,\n findShadowRoot,\n getElement,\n getjQuery,\n getNextActiveElement,\n getTransitionDurationFromElement,\n getUID,\n isDisabled,\n isElement,\n isRTL,\n isVisible,\n noop,\n onDOMContentLoaded,\n parseSelector,\n reflow,\n triggerTransitionEnd,\n toType\n}\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap dom/event-handler.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport { getjQuery } from '../util/index.js'\n\n/**\n * Constants\n */\n\nconst namespaceRegex = /[^.]*(?=\\..*)\\.|.*/\nconst stripNameRegex = /\\..*/\nconst stripUidRegex = /::\\d+$/\nconst eventRegistry = {} // Events storage\nlet uidEvent = 1\nconst customEvents = {\n mouseenter: 'mouseover',\n mouseleave: 'mouseout'\n}\n\nconst nativeEvents = new Set([\n 'click',\n 'dblclick',\n 'mouseup',\n 'mousedown',\n 'contextmenu',\n 'mousewheel',\n 'DOMMouseScroll',\n 'mouseover',\n 'mouseout',\n 'mousemove',\n 'selectstart',\n 'selectend',\n 'keydown',\n 'keypress',\n 'keyup',\n 'orientationchange',\n 'touchstart',\n 'touchmove',\n 'touchend',\n 'touchcancel',\n 'pointerdown',\n 'pointermove',\n 'pointerup',\n 'pointerleave',\n 'pointercancel',\n 'gesturestart',\n 'gesturechange',\n 'gestureend',\n 'focus',\n 'blur',\n 'change',\n 'reset',\n 'select',\n 'submit',\n 'focusin',\n 'focusout',\n 'load',\n 'unload',\n 'beforeunload',\n 'resize',\n 'move',\n 'DOMContentLoaded',\n 'readystatechange',\n 'error',\n 'abort',\n 'scroll'\n])\n\n/**\n * Private methods\n */\n\nfunction makeEventUid(element, uid) {\n return (uid && `${uid}::${uidEvent++}`) || element.uidEvent || uidEvent++\n}\n\nfunction getElementEvents(element) {\n const uid = makeEventUid(element)\n\n element.uidEvent = uid\n eventRegistry[uid] = eventRegistry[uid] || {}\n\n return eventRegistry[uid]\n}\n\nfunction bootstrapHandler(element, fn) {\n return function handler(event) {\n hydrateObj(event, { delegateTarget: element })\n\n if (handler.oneOff) {\n EventHandler.off(element, event.type, fn)\n }\n\n return fn.apply(element, [event])\n }\n}\n\nfunction bootstrapDelegationHandler(element, selector, fn) {\n return function handler(event) {\n const domElements = element.querySelectorAll(selector)\n\n for (let { target } = event; target && target !== this; target = target.parentNode) {\n for (const domElement of domElements) {\n if (domElement !== target) {\n continue\n }\n\n hydrateObj(event, { delegateTarget: target })\n\n if (handler.oneOff) {\n EventHandler.off(element, event.type, selector, fn)\n }\n\n return fn.apply(target, [event])\n }\n }\n }\n}\n\nfunction findHandler(events, callable, delegationSelector = null) {\n return Object.values(events)\n .find(event => event.callable === callable && event.delegationSelector === delegationSelector)\n}\n\nfunction normalizeParameters(originalTypeEvent, handler, delegationFunction) {\n const isDelegated = typeof handler === 'string'\n // TODO: tooltip passes `false` instead of selector, so we need to check\n const callable = isDelegated ? delegationFunction : (handler || delegationFunction)\n let typeEvent = getTypeEvent(originalTypeEvent)\n\n if (!nativeEvents.has(typeEvent)) {\n typeEvent = originalTypeEvent\n }\n\n return [isDelegated, callable, typeEvent]\n}\n\nfunction addHandler(element, originalTypeEvent, handler, delegationFunction, oneOff) {\n if (typeof originalTypeEvent !== 'string' || !element) {\n return\n }\n\n let [isDelegated, callable, typeEvent] = normalizeParameters(originalTypeEvent, handler, delegationFunction)\n\n // in case of mouseenter or mouseleave wrap the handler within a function that checks for its DOM position\n // this prevents the handler from being dispatched the same way as mouseover or mouseout does\n if (originalTypeEvent in customEvents) {\n const wrapFunction = fn => {\n return function (event) {\n if (!event.relatedTarget || (event.relatedTarget !== event.delegateTarget && !event.delegateTarget.contains(event.relatedTarget))) {\n return fn.call(this, event)\n }\n }\n }\n\n callable = wrapFunction(callable)\n }\n\n const events = getElementEvents(element)\n const handlers = events[typeEvent] || (events[typeEvent] = {})\n const previousFunction = findHandler(handlers, callable, isDelegated ? handler : null)\n\n if (previousFunction) {\n previousFunction.oneOff = previousFunction.oneOff && oneOff\n\n return\n }\n\n const uid = makeEventUid(callable, originalTypeEvent.replace(namespaceRegex, ''))\n const fn = isDelegated ?\n bootstrapDelegationHandler(element, handler, callable) :\n bootstrapHandler(element, callable)\n\n fn.delegationSelector = isDelegated ? handler : null\n fn.callable = callable\n fn.oneOff = oneOff\n fn.uidEvent = uid\n handlers[uid] = fn\n\n element.addEventListener(typeEvent, fn, isDelegated)\n}\n\nfunction removeHandler(element, events, typeEvent, handler, delegationSelector) {\n const fn = findHandler(events[typeEvent], handler, delegationSelector)\n\n if (!fn) {\n return\n }\n\n element.removeEventListener(typeEvent, fn, Boolean(delegationSelector))\n delete events[typeEvent][fn.uidEvent]\n}\n\nfunction removeNamespacedHandlers(element, events, typeEvent, namespace) {\n const storeElementEvent = events[typeEvent] || {}\n\n for (const [handlerKey, event] of Object.entries(storeElementEvent)) {\n if (handlerKey.includes(namespace)) {\n removeHandler(element, events, typeEvent, event.callable, event.delegationSelector)\n }\n }\n}\n\nfunction getTypeEvent(event) {\n // allow to get the native events from namespaced events ('click.bs.button' --> 'click')\n event = event.replace(stripNameRegex, '')\n return customEvents[event] || event\n}\n\nconst EventHandler = {\n on(element, event, handler, delegationFunction) {\n addHandler(element, event, handler, delegationFunction, false)\n },\n\n one(element, event, handler, delegationFunction) {\n addHandler(element, event, handler, delegationFunction, true)\n },\n\n off(element, originalTypeEvent, handler, delegationFunction) {\n if (typeof originalTypeEvent !== 'string' || !element) {\n return\n }\n\n const [isDelegated, callable, typeEvent] = normalizeParameters(originalTypeEvent, handler, delegationFunction)\n const inNamespace = typeEvent !== originalTypeEvent\n const events = getElementEvents(element)\n const storeElementEvent = events[typeEvent] || {}\n const isNamespace = originalTypeEvent.startsWith('.')\n\n if (typeof callable !== 'undefined') {\n // Simplest case: handler is passed, remove that listener ONLY.\n if (!Object.keys(storeElementEvent).length) {\n return\n }\n\n removeHandler(element, events, typeEvent, callable, isDelegated ? handler : null)\n return\n }\n\n if (isNamespace) {\n for (const elementEvent of Object.keys(events)) {\n removeNamespacedHandlers(element, events, elementEvent, originalTypeEvent.slice(1))\n }\n }\n\n for (const [keyHandlers, event] of Object.entries(storeElementEvent)) {\n const handlerKey = keyHandlers.replace(stripUidRegex, '')\n\n if (!inNamespace || originalTypeEvent.includes(handlerKey)) {\n removeHandler(element, events, typeEvent, event.callable, event.delegationSelector)\n }\n }\n },\n\n trigger(element, event, args) {\n if (typeof event !== 'string' || !element) {\n return null\n }\n\n const $ = getjQuery()\n const typeEvent = getTypeEvent(event)\n const inNamespace = event !== typeEvent\n\n let jQueryEvent = null\n let bubbles = true\n let nativeDispatch = true\n let defaultPrevented = false\n\n if (inNamespace && $) {\n jQueryEvent = $.Event(event, args)\n\n $(element).trigger(jQueryEvent)\n bubbles = !jQueryEvent.isPropagationStopped()\n nativeDispatch = !jQueryEvent.isImmediatePropagationStopped()\n defaultPrevented = jQueryEvent.isDefaultPrevented()\n }\n\n const evt = hydrateObj(new Event(event, { bubbles, cancelable: true }), args)\n\n if (defaultPrevented) {\n evt.preventDefault()\n }\n\n if (nativeDispatch) {\n element.dispatchEvent(evt)\n }\n\n if (evt.defaultPrevented && jQueryEvent) {\n jQueryEvent.preventDefault()\n }\n\n return evt\n }\n}\n\nfunction hydrateObj(obj, meta = {}) {\n for (const [key, value] of Object.entries(meta)) {\n try {\n obj[key] = value\n } catch {\n Object.defineProperty(obj, key, {\n configurable: true,\n get() {\n return value\n }\n })\n }\n }\n\n return obj\n}\n\nexport default EventHandler\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap dom/manipulator.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nfunction normalizeData(value) {\n if (value === 'true') {\n return true\n }\n\n if (value === 'false') {\n return false\n }\n\n if (value === Number(value).toString()) {\n return Number(value)\n }\n\n if (value === '' || value === 'null') {\n return null\n }\n\n if (typeof value !== 'string') {\n return value\n }\n\n try {\n return JSON.parse(decodeURIComponent(value))\n } catch {\n return value\n }\n}\n\nfunction normalizeDataKey(key) {\n return key.replace(/[A-Z]/g, chr => `-${chr.toLowerCase()}`)\n}\n\nconst Manipulator = {\n setDataAttribute(element, key, value) {\n element.setAttribute(`data-bs-${normalizeDataKey(key)}`, value)\n },\n\n removeDataAttribute(element, key) {\n element.removeAttribute(`data-bs-${normalizeDataKey(key)}`)\n },\n\n getDataAttributes(element) {\n if (!element) {\n return {}\n }\n\n const attributes = {}\n const bsKeys = Object.keys(element.dataset).filter(key => key.startsWith('bs') && !key.startsWith('bsConfig'))\n\n for (const key of bsKeys) {\n let pureKey = key.replace(/^bs/, '')\n pureKey = pureKey.charAt(0).toLowerCase() + pureKey.slice(1, pureKey.length)\n attributes[pureKey] = normalizeData(element.dataset[key])\n }\n\n return attributes\n },\n\n getDataAttribute(element, key) {\n return normalizeData(element.getAttribute(`data-bs-${normalizeDataKey(key)}`))\n }\n}\n\nexport default Manipulator\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap util/config.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport Manipulator from '../dom/manipulator.js'\nimport { isElement, toType } from './index.js'\n\n/**\n * Class definition\n */\n\nclass Config {\n // Getters\n static get Default() {\n return {}\n }\n\n static get DefaultType() {\n return {}\n }\n\n static get NAME() {\n throw new Error('You have to implement the static method \"NAME\", for each component!')\n }\n\n _getConfig(config) {\n config = this._mergeConfigObj(config)\n config = this._configAfterMerge(config)\n this._typeCheckConfig(config)\n return config\n }\n\n _configAfterMerge(config) {\n return config\n }\n\n _mergeConfigObj(config, element) {\n const jsonConfig = isElement(element) ? Manipulator.getDataAttribute(element, 'config') : {} // try to parse\n\n return {\n ...this.constructor.Default,\n ...(typeof jsonConfig === 'object' ? jsonConfig : {}),\n ...(isElement(element) ? Manipulator.getDataAttributes(element) : {}),\n ...(typeof config === 'object' ? config : {})\n }\n }\n\n _typeCheckConfig(config, configTypes = this.constructor.DefaultType) {\n for (const [property, expectedTypes] of Object.entries(configTypes)) {\n const value = config[property]\n const valueType = isElement(value) ? 'element' : toType(value)\n\n if (!new RegExp(expectedTypes).test(valueType)) {\n throw new TypeError(\n `${this.constructor.NAME.toUpperCase()}: Option \"${property}\" provided type \"${valueType}\" but expected type \"${expectedTypes}\".`\n )\n }\n }\n }\n}\n\nexport default Config\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap base-component.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport Data from './dom/data.js'\nimport EventHandler from './dom/event-handler.js'\nimport Config from './util/config.js'\nimport { executeAfterTransition, getElement } from './util/index.js'\n\n/**\n * Constants\n */\n\nconst VERSION = '5.3.2'\n\n/**\n * Class definition\n */\n\nclass BaseComponent extends Config {\n constructor(element, config) {\n super()\n\n element = getElement(element)\n if (!element) {\n return\n }\n\n this._element = element\n this._config = this._getConfig(config)\n\n Data.set(this._element, this.constructor.DATA_KEY, this)\n }\n\n // Public\n dispose() {\n Data.remove(this._element, this.constructor.DATA_KEY)\n EventHandler.off(this._element, this.constructor.EVENT_KEY)\n\n for (const propertyName of Object.getOwnPropertyNames(this)) {\n this[propertyName] = null\n }\n }\n\n _queueCallback(callback, element, isAnimated = true) {\n executeAfterTransition(callback, element, isAnimated)\n }\n\n _getConfig(config) {\n config = this._mergeConfigObj(config, this._element)\n config = this._configAfterMerge(config)\n this._typeCheckConfig(config)\n return config\n }\n\n // Static\n static getInstance(element) {\n return Data.get(getElement(element), this.DATA_KEY)\n }\n\n static getOrCreateInstance(element, config = {}) {\n return this.getInstance(element) || new this(element, typeof config === 'object' ? config : null)\n }\n\n static get VERSION() {\n return VERSION\n }\n\n static get DATA_KEY() {\n return `bs.${this.NAME}`\n }\n\n static get EVENT_KEY() {\n return `.${this.DATA_KEY}`\n }\n\n static eventName(name) {\n return `${name}${this.EVENT_KEY}`\n }\n}\n\nexport default BaseComponent\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap dom/selector-engine.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport { isDisabled, isVisible, parseSelector } from '../util/index.js'\n\nconst getSelector = element => {\n let selector = element.getAttribute('data-bs-target')\n\n if (!selector || selector === '#') {\n let hrefAttribute = element.getAttribute('href')\n\n // The only valid content that could double as a selector are IDs or classes,\n // so everything starting with `#` or `.`. If a \"real\" URL is used as the selector,\n // `document.querySelector` will rightfully complain it is invalid.\n // See https://github.com/twbs/bootstrap/issues/32273\n if (!hrefAttribute || (!hrefAttribute.includes('#') && !hrefAttribute.startsWith('.'))) {\n return null\n }\n\n // Just in case some CMS puts out a full URL with the anchor appended\n if (hrefAttribute.includes('#') && !hrefAttribute.startsWith('#')) {\n hrefAttribute = `#${hrefAttribute.split('#')[1]}`\n }\n\n selector = hrefAttribute && hrefAttribute !== '#' ? parseSelector(hrefAttribute.trim()) : null\n }\n\n return selector\n}\n\nconst SelectorEngine = {\n find(selector, element = document.documentElement) {\n return [].concat(...Element.prototype.querySelectorAll.call(element, selector))\n },\n\n findOne(selector, element = document.documentElement) {\n return Element.prototype.querySelector.call(element, selector)\n },\n\n children(element, selector) {\n return [].concat(...element.children).filter(child => child.matches(selector))\n },\n\n parents(element, selector) {\n const parents = []\n let ancestor = element.parentNode.closest(selector)\n\n while (ancestor) {\n parents.push(ancestor)\n ancestor = ancestor.parentNode.closest(selector)\n }\n\n return parents\n },\n\n prev(element, selector) {\n let previous = element.previousElementSibling\n\n while (previous) {\n if (previous.matches(selector)) {\n return [previous]\n }\n\n previous = previous.previousElementSibling\n }\n\n return []\n },\n // TODO: this is now unused; remove later along with prev()\n next(element, selector) {\n let next = element.nextElementSibling\n\n while (next) {\n if (next.matches(selector)) {\n return [next]\n }\n\n next = next.nextElementSibling\n }\n\n return []\n },\n\n focusableChildren(element) {\n const focusables = [\n 'a',\n 'button',\n 'input',\n 'textarea',\n 'select',\n 'details',\n '[tabindex]',\n '[contenteditable=\"true\"]'\n ].map(selector => `${selector}:not([tabindex^=\"-\"])`).join(',')\n\n return this.find(focusables, element).filter(el => !isDisabled(el) && isVisible(el))\n },\n\n getSelectorFromElement(element) {\n const selector = getSelector(element)\n\n if (selector) {\n return SelectorEngine.findOne(selector) ? selector : null\n }\n\n return null\n },\n\n getElementFromSelector(element) {\n const selector = getSelector(element)\n\n return selector ? SelectorEngine.findOne(selector) : null\n },\n\n getMultipleElementsFromSelector(element) {\n const selector = getSelector(element)\n\n return selector ? SelectorEngine.find(selector) : []\n }\n}\n\nexport default SelectorEngine\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap util/component-functions.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport EventHandler from '../dom/event-handler.js'\nimport SelectorEngine from '../dom/selector-engine.js'\nimport { isDisabled } from './index.js'\n\nconst enableDismissTrigger = (component, method = 'hide') => {\n const clickEvent = `click.dismiss${component.EVENT_KEY}`\n const name = component.NAME\n\n EventHandler.on(document, clickEvent, `[data-bs-dismiss=\"${name}\"]`, function (event) {\n if (['A', 'AREA'].includes(this.tagName)) {\n event.preventDefault()\n }\n\n if (isDisabled(this)) {\n return\n }\n\n const target = SelectorEngine.getElementFromSelector(this) || this.closest(`.${name}`)\n const instance = component.getOrCreateInstance(target)\n\n // Method argument is left, for Alert and only, as it doesn't implement the 'hide' method\n instance[method]()\n })\n}\n\nexport {\n enableDismissTrigger\n}\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap toast.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport BaseComponent from './base-component.js'\nimport EventHandler from './dom/event-handler.js'\nimport { enableDismissTrigger } from './util/component-functions.js'\nimport { defineJQueryPlugin, reflow } from './util/index.js'\n\n/**\n * Constants\n */\n\nconst NAME = 'toast'\nconst DATA_KEY = 'bs.toast'\nconst EVENT_KEY = `.${DATA_KEY}`\n\nconst EVENT_MOUSEOVER = `mouseover${EVENT_KEY}`\nconst EVENT_MOUSEOUT = `mouseout${EVENT_KEY}`\nconst EVENT_FOCUSIN = `focusin${EVENT_KEY}`\nconst EVENT_FOCUSOUT = `focusout${EVENT_KEY}`\nconst EVENT_HIDE = `hide${EVENT_KEY}`\nconst EVENT_HIDDEN = `hidden${EVENT_KEY}`\nconst EVENT_SHOW = `show${EVENT_KEY}`\nconst EVENT_SHOWN = `shown${EVENT_KEY}`\n\nconst CLASS_NAME_FADE = 'fade'\nconst CLASS_NAME_HIDE = 'hide' // @deprecated - kept here only for backwards compatibility\nconst CLASS_NAME_SHOW = 'show'\nconst CLASS_NAME_SHOWING = 'showing'\n\nconst DefaultType = {\n animation: 'boolean',\n autohide: 'boolean',\n delay: 'number'\n}\n\nconst Default = {\n animation: true,\n autohide: true,\n delay: 5000\n}\n\n/**\n * Class definition\n */\n\nclass Toast extends BaseComponent {\n constructor(element, config) {\n super(element, config)\n\n this._timeout = null\n this._hasMouseInteraction = false\n this._hasKeyboardInteraction = false\n this._setListeners()\n }\n\n // Getters\n static get Default() {\n return Default\n }\n\n static get DefaultType() {\n return DefaultType\n }\n\n static get NAME() {\n return NAME\n }\n\n // Public\n show() {\n const showEvent = EventHandler.trigger(this._element, EVENT_SHOW)\n\n if (showEvent.defaultPrevented) {\n return\n }\n\n this._clearTimeout()\n\n if (this._config.animation) {\n this._element.classList.add(CLASS_NAME_FADE)\n }\n\n const complete = () => {\n this._element.classList.remove(CLASS_NAME_SHOWING)\n EventHandler.trigger(this._element, EVENT_SHOWN)\n\n this._maybeScheduleHide()\n }\n\n this._element.classList.remove(CLASS_NAME_HIDE) // @deprecated\n reflow(this._element)\n this._element.classList.add(CLASS_NAME_SHOW, CLASS_NAME_SHOWING)\n\n this._queueCallback(complete, this._element, this._config.animation)\n }\n\n hide() {\n if (!this.isShown()) {\n return\n }\n\n const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE)\n\n if (hideEvent.defaultPrevented) {\n return\n }\n\n const complete = () => {\n this._element.classList.add(CLASS_NAME_HIDE) // @deprecated\n this._element.classList.remove(CLASS_NAME_SHOWING, CLASS_NAME_SHOW)\n EventHandler.trigger(this._element, EVENT_HIDDEN)\n }\n\n this._element.classList.add(CLASS_NAME_SHOWING)\n this._queueCallback(complete, this._element, this._config.animation)\n }\n\n dispose() {\n this._clearTimeout()\n\n if (this.isShown()) {\n this._element.classList.remove(CLASS_NAME_SHOW)\n }\n\n super.dispose()\n }\n\n isShown() {\n return this._element.classList.contains(CLASS_NAME_SHOW)\n }\n\n // Private\n\n _maybeScheduleHide() {\n if (!this._config.autohide) {\n return\n }\n\n if (this._hasMouseInteraction || this._hasKeyboardInteraction) {\n return\n }\n\n this._timeout = setTimeout(() => {\n this.hide()\n }, this._config.delay)\n }\n\n _onInteraction(event, isInteracting) {\n switch (event.type) {\n case 'mouseover':\n case 'mouseout': {\n this._hasMouseInteraction = isInteracting\n break\n }\n\n case 'focusin':\n case 'focusout': {\n this._hasKeyboardInteraction = isInteracting\n break\n }\n\n default: {\n break\n }\n }\n\n if (isInteracting) {\n this._clearTimeout()\n return\n }\n\n const nextElement = event.relatedTarget\n if (this._element === nextElement || this._element.contains(nextElement)) {\n return\n }\n\n this._maybeScheduleHide()\n }\n\n _setListeners() {\n EventHandler.on(this._element, EVENT_MOUSEOVER, event => this._onInteraction(event, true))\n EventHandler.on(this._element, EVENT_MOUSEOUT, event => this._onInteraction(event, false))\n EventHandler.on(this._element, EVENT_FOCUSIN, event => this._onInteraction(event, true))\n EventHandler.on(this._element, EVENT_FOCUSOUT, event => this._onInteraction(event, false))\n }\n\n _clearTimeout() {\n clearTimeout(this._timeout)\n this._timeout = null\n }\n\n // Static\n static jQueryInterface(config) {\n return this.each(function () {\n const data = Toast.getOrCreateInstance(this, config)\n\n if (typeof config === 'string') {\n if (typeof data[config] === 'undefined') {\n throw new TypeError(`No method named \"${config}\"`)\n }\n\n data[config](this)\n }\n })\n }\n}\n\n/**\n * Data API implementation\n */\n\nenableDismissTrigger(Toast)\n\n/**\n * jQuery\n */\n\ndefineJQueryPlugin(Toast)\n\nexport default Toast\n", "/**\n * Returns a function, that, as long as it continues to be invoked, will not\n * be triggered. The function will be called after it stops being called for\n * N milliseconds. If `immediate` is passed, trigger the function on the\n * leading edge, instead of the trailing. The function also has a property 'clear' \n * that is a function which will clear the timer to prevent previously scheduled executions. \n *\n * @source underscore.js\n * @see http://unscriptable.com/2009/03/20/debouncing-javascript-methods/\n * @param {Function} function to wrap\n * @param {Number} timeout in ms (`100`)\n * @param {Boolean} whether to execute at the beginning (`false`)\n * @api public\n */\nfunction debounce(func, wait, immediate){\n var timeout, args, context, timestamp, result;\n if (null == wait) wait = 100;\n\n function later() {\n var last = Date.now() - timestamp;\n\n if (last < wait && last >= 0) {\n timeout = setTimeout(later, wait - last);\n } else {\n timeout = null;\n if (!immediate) {\n result = func.apply(context, args);\n context = args = null;\n }\n }\n };\n\n var debounced = function(){\n context = this;\n args = arguments;\n timestamp = Date.now();\n var callNow = immediate && !timeout;\n if (!timeout) timeout = setTimeout(later, wait);\n if (callNow) {\n result = func.apply(context, args);\n context = args = null;\n }\n\n return result;\n };\n\n debounced.clear = function() {\n if (timeout) {\n clearTimeout(timeout);\n timeout = null;\n }\n };\n \n debounced.flush = function() {\n if (timeout) {\n result = func.apply(context, args);\n context = args = null;\n \n clearTimeout(timeout);\n timeout = null;\n }\n };\n\n return debounced;\n};\n\n// Adds compatibility for ES modules\ndebounce.debounce = debounce;\n\nmodule.exports = debounce;\n", "/**\n* Create an event emitter with namespaces\n* @name createNamespaceEmitter\n* @example\n* var emitter = require('./index')()\n*\n* emitter.on('*', function () {\n* console.log('all events emitted', this.event)\n* })\n*\n* emitter.on('example', function () {\n* console.log('example event emitted')\n* })\n*/\nmodule.exports = function createNamespaceEmitter () {\n var emitter = {}\n var _fns = emitter._fns = {}\n\n /**\n * Emit an event. Optionally namespace the event. Handlers are fired in the order in which they were added with exact matches taking precedence. Separate the namespace and event with a `:`\n * @name emit\n * @param {String} event \u2013 the name of the event, with optional namespace\n * @param {...*} data \u2013 up to 6 arguments that are passed to the event listener\n * @example\n * emitter.emit('example')\n * emitter.emit('demo:test')\n * emitter.emit('data', { example: true}, 'a string', 1)\n */\n emitter.emit = function emit (event, arg1, arg2, arg3, arg4, arg5, arg6) {\n var toEmit = getListeners(event)\n\n if (toEmit.length) {\n emitAll(event, toEmit, [arg1, arg2, arg3, arg4, arg5, arg6])\n }\n }\n\n /**\n * Create en event listener.\n * @name on\n * @param {String} event\n * @param {Function} fn\n * @example\n * emitter.on('example', function () {})\n * emitter.on('demo', function () {})\n */\n emitter.on = function on (event, fn) {\n if (!_fns[event]) {\n _fns[event] = []\n }\n\n _fns[event].push(fn)\n }\n\n /**\n * Create en event listener that fires once.\n * @name once\n * @param {String} event\n * @param {Function} fn\n * @example\n * emitter.once('example', function () {})\n * emitter.once('demo', function () {})\n */\n emitter.once = function once (event, fn) {\n function one () {\n fn.apply(this, arguments)\n emitter.off(event, one)\n }\n this.on(event, one)\n }\n\n /**\n * Stop listening to an event. Stop all listeners on an event by only passing the event name. Stop a single listener by passing that event handler as a callback.\n * You must be explicit about what will be unsubscribed: `emitter.off('demo')` will unsubscribe an `emitter.on('demo')` listener,\n * `emitter.off('demo:example')` will unsubscribe an `emitter.on('demo:example')` listener\n * @name off\n * @param {String} event\n * @param {Function} [fn] \u2013 the specific handler\n * @example\n * emitter.off('example')\n * emitter.off('demo', function () {})\n */\n emitter.off = function off (event, fn) {\n var keep = []\n\n if (event && fn) {\n var fns = this._fns[event]\n var i = 0\n var l = fns ? fns.length : 0\n\n for (i; i < l; i++) {\n if (fns[i] !== fn) {\n keep.push(fns[i])\n }\n }\n }\n\n keep.length ? this._fns[event] = keep : delete this._fns[event]\n }\n\n function getListeners (e) {\n var out = _fns[e] ? _fns[e] : []\n var idx = e.indexOf(':')\n var args = (idx === -1) ? [e] : [e.substring(0, idx), e.substring(idx + 1)]\n\n var keys = Object.keys(_fns)\n var i = 0\n var l = keys.length\n\n for (i; i < l; i++) {\n var key = keys[i]\n if (key === '*') {\n out = out.concat(_fns[key])\n }\n\n if (args.length === 2 && args[0] === key) {\n out = out.concat(_fns[key])\n break\n }\n }\n\n return out\n }\n\n function emitAll (e, fns, args) {\n var i = 0\n var l = fns.length\n\n for (i; i < l; i++) {\n if (!fns[i]) break\n fns[i].event = e\n fns[i].apply(fns[i], args)\n }\n }\n\n return emitter\n}\n", "/**\n * Checks if `value` is the\n * [language type](http://www.ecma-international.org/ecma-262/7.0/#sec-ecmascript-language-types)\n * of `Object`. (e.g. arrays, functions, objects, regexes, `new Number(0)`, and `new String('')`)\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is an object, else `false`.\n * @example\n *\n * _.isObject({});\n * // => true\n *\n * _.isObject([1, 2, 3]);\n * // => true\n *\n * _.isObject(_.noop);\n * // => true\n *\n * _.isObject(null);\n * // => false\n */\nfunction isObject(value) {\n var type = typeof value;\n return value != null && (type == 'object' || type == 'function');\n}\n\nmodule.exports = isObject;\n", "/** Detect free variable `global` from Node.js. */\nvar freeGlobal = typeof global == 'object' && global && global.Object === Object && global;\n\nmodule.exports = freeGlobal;\n", "var freeGlobal = require('./_freeGlobal');\n\n/** Detect free variable `self`. */\nvar freeSelf = typeof self == 'object' && self && self.Object === Object && self;\n\n/** Used as a reference to the global object. */\nvar root = freeGlobal || freeSelf || Function('return this')();\n\nmodule.exports = root;\n", "var root = require('./_root');\n\n/**\n * Gets the timestamp of the number of milliseconds that have elapsed since\n * the Unix epoch (1 January 1970 00:00:00 UTC).\n *\n * @static\n * @memberOf _\n * @since 2.4.0\n * @category Date\n * @returns {number} Returns the timestamp.\n * @example\n *\n * _.defer(function(stamp) {\n * console.log(_.now() - stamp);\n * }, _.now());\n * // => Logs the number of milliseconds it took for the deferred invocation.\n */\nvar now = function() {\n return root.Date.now();\n};\n\nmodule.exports = now;\n", "/** Used to match a single whitespace character. */\nvar reWhitespace = /\\s/;\n\n/**\n * Used by `_.trim` and `_.trimEnd` to get the index of the last non-whitespace\n * character of `string`.\n *\n * @private\n * @param {string} string The string to inspect.\n * @returns {number} Returns the index of the last non-whitespace character.\n */\nfunction trimmedEndIndex(string) {\n var index = string.length;\n\n while (index-- && reWhitespace.test(string.charAt(index))) {}\n return index;\n}\n\nmodule.exports = trimmedEndIndex;\n", "var trimmedEndIndex = require('./_trimmedEndIndex');\n\n/** Used to match leading whitespace. */\nvar reTrimStart = /^\\s+/;\n\n/**\n * The base implementation of `_.trim`.\n *\n * @private\n * @param {string} string The string to trim.\n * @returns {string} Returns the trimmed string.\n */\nfunction baseTrim(string) {\n return string\n ? string.slice(0, trimmedEndIndex(string) + 1).replace(reTrimStart, '')\n : string;\n}\n\nmodule.exports = baseTrim;\n", "var root = require('./_root');\n\n/** Built-in value references. */\nvar Symbol = root.Symbol;\n\nmodule.exports = Symbol;\n", "var Symbol = require('./_Symbol');\n\n/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/** Used to check objects for own properties. */\nvar hasOwnProperty = objectProto.hasOwnProperty;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * A specialized version of `baseGetTag` which ignores `Symbol.toStringTag` values.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the raw `toStringTag`.\n */\nfunction getRawTag(value) {\n var isOwn = hasOwnProperty.call(value, symToStringTag),\n tag = value[symToStringTag];\n\n try {\n value[symToStringTag] = undefined;\n var unmasked = true;\n } catch (e) {}\n\n var result = nativeObjectToString.call(value);\n if (unmasked) {\n if (isOwn) {\n value[symToStringTag] = tag;\n } else {\n delete value[symToStringTag];\n }\n }\n return result;\n}\n\nmodule.exports = getRawTag;\n", "/** Used for built-in method references. */\nvar objectProto = Object.prototype;\n\n/**\n * Used to resolve the\n * [`toStringTag`](http://ecma-international.org/ecma-262/7.0/#sec-object.prototype.tostring)\n * of values.\n */\nvar nativeObjectToString = objectProto.toString;\n\n/**\n * Converts `value` to a string using `Object.prototype.toString`.\n *\n * @private\n * @param {*} value The value to convert.\n * @returns {string} Returns the converted string.\n */\nfunction objectToString(value) {\n return nativeObjectToString.call(value);\n}\n\nmodule.exports = objectToString;\n", "var Symbol = require('./_Symbol'),\n getRawTag = require('./_getRawTag'),\n objectToString = require('./_objectToString');\n\n/** `Object#toString` result references. */\nvar nullTag = '[object Null]',\n undefinedTag = '[object Undefined]';\n\n/** Built-in value references. */\nvar symToStringTag = Symbol ? Symbol.toStringTag : undefined;\n\n/**\n * The base implementation of `getTag` without fallbacks for buggy environments.\n *\n * @private\n * @param {*} value The value to query.\n * @returns {string} Returns the `toStringTag`.\n */\nfunction baseGetTag(value) {\n if (value == null) {\n return value === undefined ? undefinedTag : nullTag;\n }\n return (symToStringTag && symToStringTag in Object(value))\n ? getRawTag(value)\n : objectToString(value);\n}\n\nmodule.exports = baseGetTag;\n", "/**\n * Checks if `value` is object-like. A value is object-like if it's not `null`\n * and has a `typeof` result of \"object\".\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is object-like, else `false`.\n * @example\n *\n * _.isObjectLike({});\n * // => true\n *\n * _.isObjectLike([1, 2, 3]);\n * // => true\n *\n * _.isObjectLike(_.noop);\n * // => false\n *\n * _.isObjectLike(null);\n * // => false\n */\nfunction isObjectLike(value) {\n return value != null && typeof value == 'object';\n}\n\nmodule.exports = isObjectLike;\n", "var baseGetTag = require('./_baseGetTag'),\n isObjectLike = require('./isObjectLike');\n\n/** `Object#toString` result references. */\nvar symbolTag = '[object Symbol]';\n\n/**\n * Checks if `value` is classified as a `Symbol` primitive or object.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to check.\n * @returns {boolean} Returns `true` if `value` is a symbol, else `false`.\n * @example\n *\n * _.isSymbol(Symbol.iterator);\n * // => true\n *\n * _.isSymbol('abc');\n * // => false\n */\nfunction isSymbol(value) {\n return typeof value == 'symbol' ||\n (isObjectLike(value) && baseGetTag(value) == symbolTag);\n}\n\nmodule.exports = isSymbol;\n", "var baseTrim = require('./_baseTrim'),\n isObject = require('./isObject'),\n isSymbol = require('./isSymbol');\n\n/** Used as references for various `Number` constants. */\nvar NAN = 0 / 0;\n\n/** Used to detect bad signed hexadecimal string values. */\nvar reIsBadHex = /^[-+]0x[0-9a-f]+$/i;\n\n/** Used to detect binary string values. */\nvar reIsBinary = /^0b[01]+$/i;\n\n/** Used to detect octal string values. */\nvar reIsOctal = /^0o[0-7]+$/i;\n\n/** Built-in method references without a dependency on `root`. */\nvar freeParseInt = parseInt;\n\n/**\n * Converts `value` to a number.\n *\n * @static\n * @memberOf _\n * @since 4.0.0\n * @category Lang\n * @param {*} value The value to process.\n * @returns {number} Returns the number.\n * @example\n *\n * _.toNumber(3.2);\n * // => 3.2\n *\n * _.toNumber(Number.MIN_VALUE);\n * // => 5e-324\n *\n * _.toNumber(Infinity);\n * // => Infinity\n *\n * _.toNumber('3.2');\n * // => 3.2\n */\nfunction toNumber(value) {\n if (typeof value == 'number') {\n return value;\n }\n if (isSymbol(value)) {\n return NAN;\n }\n if (isObject(value)) {\n var other = typeof value.valueOf == 'function' ? value.valueOf() : value;\n value = isObject(other) ? (other + '') : other;\n }\n if (typeof value != 'string') {\n return value === 0 ? value : +value;\n }\n value = baseTrim(value);\n var isBinary = reIsBinary.test(value);\n return (isBinary || reIsOctal.test(value))\n ? freeParseInt(value.slice(2), isBinary ? 2 : 8)\n : (reIsBadHex.test(value) ? NAN : +value);\n}\n\nmodule.exports = toNumber;\n", "var isObject = require('./isObject'),\n now = require('./now'),\n toNumber = require('./toNumber');\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/* Built-in method references for those with the same name as other `lodash` methods. */\nvar nativeMax = Math.max,\n nativeMin = Math.min;\n\n/**\n * Creates a debounced function that delays invoking `func` until after `wait`\n * milliseconds have elapsed since the last time the debounced function was\n * invoked. The debounced function comes with a `cancel` method to cancel\n * delayed `func` invocations and a `flush` method to immediately invoke them.\n * Provide `options` to indicate whether `func` should be invoked on the\n * leading and/or trailing edge of the `wait` timeout. The `func` is invoked\n * with the last arguments provided to the debounced function. Subsequent\n * calls to the debounced function return the result of the last `func`\n * invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the debounced function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.debounce` and `_.throttle`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to debounce.\n * @param {number} [wait=0] The number of milliseconds to delay.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=false]\n * Specify invoking on the leading edge of the timeout.\n * @param {number} [options.maxWait]\n * The maximum time `func` is allowed to be delayed before it's invoked.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new debounced function.\n * @example\n *\n * // Avoid costly calculations while the window size is in flux.\n * jQuery(window).on('resize', _.debounce(calculateLayout, 150));\n *\n * // Invoke `sendMail` when clicked, debouncing subsequent calls.\n * jQuery(element).on('click', _.debounce(sendMail, 300, {\n * 'leading': true,\n * 'trailing': false\n * }));\n *\n * // Ensure `batchLog` is invoked once after 1 second of debounced calls.\n * var debounced = _.debounce(batchLog, 250, { 'maxWait': 1000 });\n * var source = new EventSource('/stream');\n * jQuery(source).on('message', debounced);\n *\n * // Cancel the trailing debounced invocation.\n * jQuery(window).on('popstate', debounced.cancel);\n */\nfunction debounce(func, wait, options) {\n var lastArgs,\n lastThis,\n maxWait,\n result,\n timerId,\n lastCallTime,\n lastInvokeTime = 0,\n leading = false,\n maxing = false,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n wait = toNumber(wait) || 0;\n if (isObject(options)) {\n leading = !!options.leading;\n maxing = 'maxWait' in options;\n maxWait = maxing ? nativeMax(toNumber(options.maxWait) || 0, wait) : maxWait;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n\n function invokeFunc(time) {\n var args = lastArgs,\n thisArg = lastThis;\n\n lastArgs = lastThis = undefined;\n lastInvokeTime = time;\n result = func.apply(thisArg, args);\n return result;\n }\n\n function leadingEdge(time) {\n // Reset any `maxWait` timer.\n lastInvokeTime = time;\n // Start the timer for the trailing edge.\n timerId = setTimeout(timerExpired, wait);\n // Invoke the leading edge.\n return leading ? invokeFunc(time) : result;\n }\n\n function remainingWait(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime,\n timeWaiting = wait - timeSinceLastCall;\n\n return maxing\n ? nativeMin(timeWaiting, maxWait - timeSinceLastInvoke)\n : timeWaiting;\n }\n\n function shouldInvoke(time) {\n var timeSinceLastCall = time - lastCallTime,\n timeSinceLastInvoke = time - lastInvokeTime;\n\n // Either this is the first call, activity has stopped and we're at the\n // trailing edge, the system time has gone backwards and we're treating\n // it as the trailing edge, or we've hit the `maxWait` limit.\n return (lastCallTime === undefined || (timeSinceLastCall >= wait) ||\n (timeSinceLastCall < 0) || (maxing && timeSinceLastInvoke >= maxWait));\n }\n\n function timerExpired() {\n var time = now();\n if (shouldInvoke(time)) {\n return trailingEdge(time);\n }\n // Restart the timer.\n timerId = setTimeout(timerExpired, remainingWait(time));\n }\n\n function trailingEdge(time) {\n timerId = undefined;\n\n // Only invoke if we have `lastArgs` which means `func` has been\n // debounced at least once.\n if (trailing && lastArgs) {\n return invokeFunc(time);\n }\n lastArgs = lastThis = undefined;\n return result;\n }\n\n function cancel() {\n if (timerId !== undefined) {\n clearTimeout(timerId);\n }\n lastInvokeTime = 0;\n lastArgs = lastCallTime = lastThis = timerId = undefined;\n }\n\n function flush() {\n return timerId === undefined ? result : trailingEdge(now());\n }\n\n function debounced() {\n var time = now(),\n isInvoking = shouldInvoke(time);\n\n lastArgs = arguments;\n lastThis = this;\n lastCallTime = time;\n\n if (isInvoking) {\n if (timerId === undefined) {\n return leadingEdge(lastCallTime);\n }\n if (maxing) {\n // Handle invocations in a tight loop.\n clearTimeout(timerId);\n timerId = setTimeout(timerExpired, wait);\n return invokeFunc(lastCallTime);\n }\n }\n if (timerId === undefined) {\n timerId = setTimeout(timerExpired, wait);\n }\n return result;\n }\n debounced.cancel = cancel;\n debounced.flush = flush;\n return debounced;\n}\n\nmodule.exports = debounce;\n", "var debounce = require('./debounce'),\n isObject = require('./isObject');\n\n/** Error message constants. */\nvar FUNC_ERROR_TEXT = 'Expected a function';\n\n/**\n * Creates a throttled function that only invokes `func` at most once per\n * every `wait` milliseconds. The throttled function comes with a `cancel`\n * method to cancel delayed `func` invocations and a `flush` method to\n * immediately invoke them. Provide `options` to indicate whether `func`\n * should be invoked on the leading and/or trailing edge of the `wait`\n * timeout. The `func` is invoked with the last arguments provided to the\n * throttled function. Subsequent calls to the throttled function return the\n * result of the last `func` invocation.\n *\n * **Note:** If `leading` and `trailing` options are `true`, `func` is\n * invoked on the trailing edge of the timeout only if the throttled function\n * is invoked more than once during the `wait` timeout.\n *\n * If `wait` is `0` and `leading` is `false`, `func` invocation is deferred\n * until to the next tick, similar to `setTimeout` with a timeout of `0`.\n *\n * See [David Corbacho's article](https://css-tricks.com/debouncing-throttling-explained-examples/)\n * for details over the differences between `_.throttle` and `_.debounce`.\n *\n * @static\n * @memberOf _\n * @since 0.1.0\n * @category Function\n * @param {Function} func The function to throttle.\n * @param {number} [wait=0] The number of milliseconds to throttle invocations to.\n * @param {Object} [options={}] The options object.\n * @param {boolean} [options.leading=true]\n * Specify invoking on the leading edge of the timeout.\n * @param {boolean} [options.trailing=true]\n * Specify invoking on the trailing edge of the timeout.\n * @returns {Function} Returns the new throttled function.\n * @example\n *\n * // Avoid excessively updating the position while scrolling.\n * jQuery(window).on('scroll', _.throttle(updatePosition, 100));\n *\n * // Invoke `renewToken` when the click event is fired, but not more than once every 5 minutes.\n * var throttled = _.throttle(renewToken, 300000, { 'trailing': false });\n * jQuery(element).on('click', throttled);\n *\n * // Cancel the trailing throttled invocation.\n * jQuery(window).on('popstate', throttled.cancel);\n */\nfunction throttle(func, wait, options) {\n var leading = true,\n trailing = true;\n\n if (typeof func != 'function') {\n throw new TypeError(FUNC_ERROR_TEXT);\n }\n if (isObject(options)) {\n leading = 'leading' in options ? !!options.leading : leading;\n trailing = 'trailing' in options ? !!options.trailing : trailing;\n }\n return debounce(func, wait, {\n 'leading': leading,\n 'maxWait': wait,\n 'trailing': trailing\n });\n}\n\nmodule.exports = throttle;\n", "// Adapted from https://github.com/Flet/prettier-bytes/\n// Changing 1000 bytes to 1024, so we can keep uppercase KB vs kB\n// ISC License (c) Dan Flettre https://github.com/Flet/prettier-bytes/blob/master/LICENSE\nmodule.exports = function prettierBytes (num) {\n if (typeof num !== 'number' || isNaN(num)) {\n throw new TypeError(`Expected a number, got ${typeof num}`)\n }\n\n const neg = num < 0\n const units = ['B', 'KB', 'MB', 'GB', 'TB', 'PB', 'EB', 'ZB', 'YB']\n\n if (neg) {\n num = -num\n }\n\n if (num < 1) {\n return `${(neg ? '-' : '') + num} B`\n }\n\n const exponent = Math.min(Math.floor(Math.log(num) / Math.log(1024)), units.length - 1)\n num = Number(num / Math.pow(1024, exponent))\n const unit = units[exponent]\n\n if (num >= 10 || num % 1 === 0) {\n // Do not show decimals when the number is two-digit, or if the number has no\n // decimal component.\n return `${(neg ? '-' : '') + num.toFixed(0)} ${unit}`\n }\n return `${(neg ? '-' : '') + num.toFixed(1)} ${unit}`\n}\n", "/* jshint node: true */\n'use strict';\n\n/**\n # wildcard\n\n Very simple wildcard matching, which is designed to provide the same\n functionality that is found in the\n [eve](https://github.com/adobe-webplatform/eve) eventing library.\n\n ## Usage\n\n It works with strings:\n\n <<< examples/strings.js\n\n Arrays:\n\n <<< examples/arrays.js\n\n Objects (matching against keys):\n\n <<< examples/objects.js\n\n While the library works in Node, if you are are looking for file-based\n wildcard matching then you should have a look at:\n\n \n**/\n\nfunction WildcardMatcher(text, separator) {\n this.text = text = text || '';\n this.hasWild = ~text.indexOf('*');\n this.separator = separator;\n this.parts = text.split(separator);\n}\n\nWildcardMatcher.prototype.match = function(input) {\n var matches = true;\n var parts = this.parts;\n var ii;\n var partsCount = parts.length;\n var testParts;\n\n if (typeof input == 'string' || input instanceof String) {\n if (!this.hasWild && this.text != input) {\n matches = false;\n } else {\n testParts = (input || '').split(this.separator);\n for (ii = 0; matches && ii < partsCount; ii++) {\n if (parts[ii] === '*') {\n continue;\n } else if (ii < testParts.length) {\n matches = parts[ii] === testParts[ii];\n } else {\n matches = false;\n }\n }\n\n // If matches, then return the component parts\n matches = matches && testParts;\n }\n }\n else if (typeof input.splice == 'function') {\n matches = [];\n\n for (ii = input.length; ii--; ) {\n if (this.match(input[ii])) {\n matches[matches.length] = input[ii];\n }\n }\n }\n else if (typeof input == 'object') {\n matches = {};\n\n for (var key in input) {\n if (this.match(key)) {\n matches[key] = input[key];\n }\n }\n }\n\n return matches;\n};\n\nmodule.exports = function(text, test, separator) {\n var matcher = new WildcardMatcher(text, separator || /[\\/\\.]/);\n if (typeof test != 'undefined') {\n return matcher.match(test);\n }\n\n return matcher;\n};\n", "var wildcard = require('wildcard');\nvar reMimePartSplit = /[\\/\\+\\.]/;\n\n/**\n # mime-match\n\n A simple function to checker whether a target mime type matches a mime-type\n pattern (e.g. image/jpeg matches image/jpeg OR image/*).\n\n ## Example Usage\n\n <<< example.js\n\n**/\nmodule.exports = function(target, pattern) {\n function test(pattern) {\n var result = wildcard(pattern, target, reMimePartSplit);\n\n // ensure that we have a valid mime type (should have two parts)\n return result && result.length >= 2;\n }\n\n return pattern ? test(pattern.split(';')[0]) : test;\n};\n", "/*!\n\tCopyright (c) 2018 Jed Watson.\n\tLicensed under the MIT License (MIT), see\n\thttp://jedwatson.github.io/classnames\n*/\n/* global define */\n\n(function () {\n\t'use strict';\n\n\tvar hasOwn = {}.hasOwnProperty;\n\tvar nativeCodeString = '[native code]';\n\n\tfunction classNames() {\n\t\tvar classes = [];\n\n\t\tfor (var i = 0; i < arguments.length; i++) {\n\t\t\tvar arg = arguments[i];\n\t\t\tif (!arg) continue;\n\n\t\t\tvar argType = typeof arg;\n\n\t\t\tif (argType === 'string' || argType === 'number') {\n\t\t\t\tclasses.push(arg);\n\t\t\t} else if (Array.isArray(arg)) {\n\t\t\t\tif (arg.length) {\n\t\t\t\t\tvar inner = classNames.apply(null, arg);\n\t\t\t\t\tif (inner) {\n\t\t\t\t\t\tclasses.push(inner);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t} else if (argType === 'object') {\n\t\t\t\tif (arg.toString !== Object.prototype.toString && !arg.toString.toString().includes('[native code]')) {\n\t\t\t\t\tclasses.push(arg.toString());\n\t\t\t\t\tcontinue;\n\t\t\t\t}\n\n\t\t\t\tfor (var key in arg) {\n\t\t\t\t\tif (hasOwn.call(arg, key) && arg[key]) {\n\t\t\t\t\t\tclasses.push(key);\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t}\n\t\t}\n\n\t\treturn classes.join(' ');\n\t}\n\n\tif (typeof module !== 'undefined' && module.exports) {\n\t\tclassNames.default = classNames;\n\t\tmodule.exports = classNames;\n\t} else if (typeof define === 'function' && typeof define.amd === 'object' && define.amd) {\n\t\t// register as 'classnames', consistent with npm package name\n\t\tdefine('classnames', [], function () {\n\t\t\treturn classNames;\n\t\t});\n\t} else {\n\t\twindow.classNames = classNames;\n\t}\n}());\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap util/backdrop.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport EventHandler from '../dom/event-handler.js'\nimport Config from './config.js'\nimport { execute, executeAfterTransition, getElement, reflow } from './index.js'\n\n/**\n * Constants\n */\n\nconst NAME = 'backdrop'\nconst CLASS_NAME_FADE = 'fade'\nconst CLASS_NAME_SHOW = 'show'\nconst EVENT_MOUSEDOWN = `mousedown.bs.${NAME}`\n\nconst Default = {\n className: 'modal-backdrop',\n clickCallback: null,\n isAnimated: false,\n isVisible: true, // if false, we use the backdrop helper without adding any element to the dom\n rootElement: 'body' // give the choice to place backdrop under different elements\n}\n\nconst DefaultType = {\n className: 'string',\n clickCallback: '(function|null)',\n isAnimated: 'boolean',\n isVisible: 'boolean',\n rootElement: '(element|string)'\n}\n\n/**\n * Class definition\n */\n\nclass Backdrop extends Config {\n constructor(config) {\n super()\n this._config = this._getConfig(config)\n this._isAppended = false\n this._element = null\n }\n\n // Getters\n static get Default() {\n return Default\n }\n\n static get DefaultType() {\n return DefaultType\n }\n\n static get NAME() {\n return NAME\n }\n\n // Public\n show(callback) {\n if (!this._config.isVisible) {\n execute(callback)\n return\n }\n\n this._append()\n\n const element = this._getElement()\n if (this._config.isAnimated) {\n reflow(element)\n }\n\n element.classList.add(CLASS_NAME_SHOW)\n\n this._emulateAnimation(() => {\n execute(callback)\n })\n }\n\n hide(callback) {\n if (!this._config.isVisible) {\n execute(callback)\n return\n }\n\n this._getElement().classList.remove(CLASS_NAME_SHOW)\n\n this._emulateAnimation(() => {\n this.dispose()\n execute(callback)\n })\n }\n\n dispose() {\n if (!this._isAppended) {\n return\n }\n\n EventHandler.off(this._element, EVENT_MOUSEDOWN)\n\n this._element.remove()\n this._isAppended = false\n }\n\n // Private\n _getElement() {\n if (!this._element) {\n const backdrop = document.createElement('div')\n backdrop.className = this._config.className\n if (this._config.isAnimated) {\n backdrop.classList.add(CLASS_NAME_FADE)\n }\n\n this._element = backdrop\n }\n\n return this._element\n }\n\n _configAfterMerge(config) {\n // use getElement() with the default \"body\" to get a fresh Element on each instantiation\n config.rootElement = getElement(config.rootElement)\n return config\n }\n\n _append() {\n if (this._isAppended) {\n return\n }\n\n const element = this._getElement()\n this._config.rootElement.append(element)\n\n EventHandler.on(element, EVENT_MOUSEDOWN, () => {\n execute(this._config.clickCallback)\n })\n\n this._isAppended = true\n }\n\n _emulateAnimation(callback) {\n executeAfterTransition(callback, this._getElement(), this._config.isAnimated)\n }\n}\n\nexport default Backdrop\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap util/focustrap.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport EventHandler from '../dom/event-handler.js'\nimport SelectorEngine from '../dom/selector-engine.js'\nimport Config from './config.js'\n\n/**\n * Constants\n */\n\nconst NAME = 'focustrap'\nconst DATA_KEY = 'bs.focustrap'\nconst EVENT_KEY = `.${DATA_KEY}`\nconst EVENT_FOCUSIN = `focusin${EVENT_KEY}`\nconst EVENT_KEYDOWN_TAB = `keydown.tab${EVENT_KEY}`\n\nconst TAB_KEY = 'Tab'\nconst TAB_NAV_FORWARD = 'forward'\nconst TAB_NAV_BACKWARD = 'backward'\n\nconst Default = {\n autofocus: true,\n trapElement: null // The element to trap focus inside of\n}\n\nconst DefaultType = {\n autofocus: 'boolean',\n trapElement: 'element'\n}\n\n/**\n * Class definition\n */\n\nclass FocusTrap extends Config {\n constructor(config) {\n super()\n this._config = this._getConfig(config)\n this._isActive = false\n this._lastTabNavDirection = null\n }\n\n // Getters\n static get Default() {\n return Default\n }\n\n static get DefaultType() {\n return DefaultType\n }\n\n static get NAME() {\n return NAME\n }\n\n // Public\n activate() {\n if (this._isActive) {\n return\n }\n\n if (this._config.autofocus) {\n this._config.trapElement.focus()\n }\n\n EventHandler.off(document, EVENT_KEY) // guard against infinite focus loop\n EventHandler.on(document, EVENT_FOCUSIN, event => this._handleFocusin(event))\n EventHandler.on(document, EVENT_KEYDOWN_TAB, event => this._handleKeydown(event))\n\n this._isActive = true\n }\n\n deactivate() {\n if (!this._isActive) {\n return\n }\n\n this._isActive = false\n EventHandler.off(document, EVENT_KEY)\n }\n\n // Private\n _handleFocusin(event) {\n const { trapElement } = this._config\n\n if (event.target === document || event.target === trapElement || trapElement.contains(event.target)) {\n return\n }\n\n const elements = SelectorEngine.focusableChildren(trapElement)\n\n if (elements.length === 0) {\n trapElement.focus()\n } else if (this._lastTabNavDirection === TAB_NAV_BACKWARD) {\n elements[elements.length - 1].focus()\n } else {\n elements[0].focus()\n }\n }\n\n _handleKeydown(event) {\n if (event.key !== TAB_KEY) {\n return\n }\n\n this._lastTabNavDirection = event.shiftKey ? TAB_NAV_BACKWARD : TAB_NAV_FORWARD\n }\n}\n\nexport default FocusTrap\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap util/scrollBar.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport Manipulator from '../dom/manipulator.js'\nimport SelectorEngine from '../dom/selector-engine.js'\nimport { isElement } from './index.js'\n\n/**\n * Constants\n */\n\nconst SELECTOR_FIXED_CONTENT = '.fixed-top, .fixed-bottom, .is-fixed, .sticky-top'\nconst SELECTOR_STICKY_CONTENT = '.sticky-top'\nconst PROPERTY_PADDING = 'padding-right'\nconst PROPERTY_MARGIN = 'margin-right'\n\n/**\n * Class definition\n */\n\nclass ScrollBarHelper {\n constructor() {\n this._element = document.body\n }\n\n // Public\n getWidth() {\n // https://developer.mozilla.org/en-US/docs/Web/API/Window/innerWidth#usage_notes\n const documentWidth = document.documentElement.clientWidth\n return Math.abs(window.innerWidth - documentWidth)\n }\n\n hide() {\n const width = this.getWidth()\n this._disableOverFlow()\n // give padding to element to balance the hidden scrollbar width\n this._setElementAttributes(this._element, PROPERTY_PADDING, calculatedValue => calculatedValue + width)\n // trick: We adjust positive paddingRight and negative marginRight to sticky-top elements to keep showing fullwidth\n this._setElementAttributes(SELECTOR_FIXED_CONTENT, PROPERTY_PADDING, calculatedValue => calculatedValue + width)\n this._setElementAttributes(SELECTOR_STICKY_CONTENT, PROPERTY_MARGIN, calculatedValue => calculatedValue - width)\n }\n\n reset() {\n this._resetElementAttributes(this._element, 'overflow')\n this._resetElementAttributes(this._element, PROPERTY_PADDING)\n this._resetElementAttributes(SELECTOR_FIXED_CONTENT, PROPERTY_PADDING)\n this._resetElementAttributes(SELECTOR_STICKY_CONTENT, PROPERTY_MARGIN)\n }\n\n isOverflowing() {\n return this.getWidth() > 0\n }\n\n // Private\n _disableOverFlow() {\n this._saveInitialAttribute(this._element, 'overflow')\n this._element.style.overflow = 'hidden'\n }\n\n _setElementAttributes(selector, styleProperty, callback) {\n const scrollbarWidth = this.getWidth()\n const manipulationCallBack = element => {\n if (element !== this._element && window.innerWidth > element.clientWidth + scrollbarWidth) {\n return\n }\n\n this._saveInitialAttribute(element, styleProperty)\n const calculatedValue = window.getComputedStyle(element).getPropertyValue(styleProperty)\n element.style.setProperty(styleProperty, `${callback(Number.parseFloat(calculatedValue))}px`)\n }\n\n this._applyManipulationCallback(selector, manipulationCallBack)\n }\n\n _saveInitialAttribute(element, styleProperty) {\n const actualValue = element.style.getPropertyValue(styleProperty)\n if (actualValue) {\n Manipulator.setDataAttribute(element, styleProperty, actualValue)\n }\n }\n\n _resetElementAttributes(selector, styleProperty) {\n const manipulationCallBack = element => {\n const value = Manipulator.getDataAttribute(element, styleProperty)\n // We only want to remove the property if the value is `null`; the value can also be zero\n if (value === null) {\n element.style.removeProperty(styleProperty)\n return\n }\n\n Manipulator.removeDataAttribute(element, styleProperty)\n element.style.setProperty(styleProperty, value)\n }\n\n this._applyManipulationCallback(selector, manipulationCallBack)\n }\n\n _applyManipulationCallback(selector, callBack) {\n if (isElement(selector)) {\n callBack(selector)\n return\n }\n\n for (const sel of SelectorEngine.find(selector, this._element)) {\n callBack(sel)\n }\n }\n}\n\nexport default ScrollBarHelper\n", "/**\n * --------------------------------------------------------------------------\n * Bootstrap modal.js\n * Licensed under MIT (https://github.com/twbs/bootstrap/blob/main/LICENSE)\n * --------------------------------------------------------------------------\n */\n\nimport BaseComponent from './base-component.js'\nimport EventHandler from './dom/event-handler.js'\nimport SelectorEngine from './dom/selector-engine.js'\nimport Backdrop from './util/backdrop.js'\nimport { enableDismissTrigger } from './util/component-functions.js'\nimport FocusTrap from './util/focustrap.js'\nimport { defineJQueryPlugin, isRTL, isVisible, reflow } from './util/index.js'\nimport ScrollBarHelper from './util/scrollbar.js'\n\n/**\n * Constants\n */\n\nconst NAME = 'modal'\nconst DATA_KEY = 'bs.modal'\nconst EVENT_KEY = `.${DATA_KEY}`\nconst DATA_API_KEY = '.data-api'\nconst ESCAPE_KEY = 'Escape'\n\nconst EVENT_HIDE = `hide${EVENT_KEY}`\nconst EVENT_HIDE_PREVENTED = `hidePrevented${EVENT_KEY}`\nconst EVENT_HIDDEN = `hidden${EVENT_KEY}`\nconst EVENT_SHOW = `show${EVENT_KEY}`\nconst EVENT_SHOWN = `shown${EVENT_KEY}`\nconst EVENT_RESIZE = `resize${EVENT_KEY}`\nconst EVENT_CLICK_DISMISS = `click.dismiss${EVENT_KEY}`\nconst EVENT_MOUSEDOWN_DISMISS = `mousedown.dismiss${EVENT_KEY}`\nconst EVENT_KEYDOWN_DISMISS = `keydown.dismiss${EVENT_KEY}`\nconst EVENT_CLICK_DATA_API = `click${EVENT_KEY}${DATA_API_KEY}`\n\nconst CLASS_NAME_OPEN = 'modal-open'\nconst CLASS_NAME_FADE = 'fade'\nconst CLASS_NAME_SHOW = 'show'\nconst CLASS_NAME_STATIC = 'modal-static'\n\nconst OPEN_SELECTOR = '.modal.show'\nconst SELECTOR_DIALOG = '.modal-dialog'\nconst SELECTOR_MODAL_BODY = '.modal-body'\nconst SELECTOR_DATA_TOGGLE = '[data-bs-toggle=\"modal\"]'\n\nconst Default = {\n backdrop: true,\n focus: true,\n keyboard: true\n}\n\nconst DefaultType = {\n backdrop: '(boolean|string)',\n focus: 'boolean',\n keyboard: 'boolean'\n}\n\n/**\n * Class definition\n */\n\nclass Modal extends BaseComponent {\n constructor(element, config) {\n super(element, config)\n\n this._dialog = SelectorEngine.findOne(SELECTOR_DIALOG, this._element)\n this._backdrop = this._initializeBackDrop()\n this._focustrap = this._initializeFocusTrap()\n this._isShown = false\n this._isTransitioning = false\n this._scrollBar = new ScrollBarHelper()\n\n this._addEventListeners()\n }\n\n // Getters\n static get Default() {\n return Default\n }\n\n static get DefaultType() {\n return DefaultType\n }\n\n static get NAME() {\n return NAME\n }\n\n // Public\n toggle(relatedTarget) {\n return this._isShown ? this.hide() : this.show(relatedTarget)\n }\n\n show(relatedTarget) {\n if (this._isShown || this._isTransitioning) {\n return\n }\n\n const showEvent = EventHandler.trigger(this._element, EVENT_SHOW, {\n relatedTarget\n })\n\n if (showEvent.defaultPrevented) {\n return\n }\n\n this._isShown = true\n this._isTransitioning = true\n\n this._scrollBar.hide()\n\n document.body.classList.add(CLASS_NAME_OPEN)\n\n this._adjustDialog()\n\n this._backdrop.show(() => this._showElement(relatedTarget))\n }\n\n hide() {\n if (!this._isShown || this._isTransitioning) {\n return\n }\n\n const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE)\n\n if (hideEvent.defaultPrevented) {\n return\n }\n\n this._isShown = false\n this._isTransitioning = true\n this._focustrap.deactivate()\n\n this._element.classList.remove(CLASS_NAME_SHOW)\n\n this._queueCallback(() => this._hideModal(), this._element, this._isAnimated())\n }\n\n dispose() {\n EventHandler.off(window, EVENT_KEY)\n EventHandler.off(this._dialog, EVENT_KEY)\n\n this._backdrop.dispose()\n this._focustrap.deactivate()\n\n super.dispose()\n }\n\n handleUpdate() {\n this._adjustDialog()\n }\n\n // Private\n _initializeBackDrop() {\n return new Backdrop({\n isVisible: Boolean(this._config.backdrop), // 'static' option will be translated to true, and booleans will keep their value,\n isAnimated: this._isAnimated()\n })\n }\n\n _initializeFocusTrap() {\n return new FocusTrap({\n trapElement: this._element\n })\n }\n\n _showElement(relatedTarget) {\n // try to append dynamic modal\n if (!document.body.contains(this._element)) {\n document.body.append(this._element)\n }\n\n this._element.style.display = 'block'\n this._element.removeAttribute('aria-hidden')\n this._element.setAttribute('aria-modal', true)\n this._element.setAttribute('role', 'dialog')\n this._element.scrollTop = 0\n\n const modalBody = SelectorEngine.findOne(SELECTOR_MODAL_BODY, this._dialog)\n if (modalBody) {\n modalBody.scrollTop = 0\n }\n\n reflow(this._element)\n\n this._element.classList.add(CLASS_NAME_SHOW)\n\n const transitionComplete = () => {\n if (this._config.focus) {\n this._focustrap.activate()\n }\n\n this._isTransitioning = false\n EventHandler.trigger(this._element, EVENT_SHOWN, {\n relatedTarget\n })\n }\n\n this._queueCallback(transitionComplete, this._dialog, this._isAnimated())\n }\n\n _addEventListeners() {\n EventHandler.on(this._element, EVENT_KEYDOWN_DISMISS, event => {\n if (event.key !== ESCAPE_KEY) {\n return\n }\n\n if (this._config.keyboard) {\n this.hide()\n return\n }\n\n this._triggerBackdropTransition()\n })\n\n EventHandler.on(window, EVENT_RESIZE, () => {\n if (this._isShown && !this._isTransitioning) {\n this._adjustDialog()\n }\n })\n\n EventHandler.on(this._element, EVENT_MOUSEDOWN_DISMISS, event => {\n // a bad trick to segregate clicks that may start inside dialog but end outside, and avoid listen to scrollbar clicks\n EventHandler.one(this._element, EVENT_CLICK_DISMISS, event2 => {\n if (this._element !== event.target || this._element !== event2.target) {\n return\n }\n\n if (this._config.backdrop === 'static') {\n this._triggerBackdropTransition()\n return\n }\n\n if (this._config.backdrop) {\n this.hide()\n }\n })\n })\n }\n\n _hideModal() {\n this._element.style.display = 'none'\n this._element.setAttribute('aria-hidden', true)\n this._element.removeAttribute('aria-modal')\n this._element.removeAttribute('role')\n this._isTransitioning = false\n\n this._backdrop.hide(() => {\n document.body.classList.remove(CLASS_NAME_OPEN)\n this._resetAdjustments()\n this._scrollBar.reset()\n EventHandler.trigger(this._element, EVENT_HIDDEN)\n })\n }\n\n _isAnimated() {\n return this._element.classList.contains(CLASS_NAME_FADE)\n }\n\n _triggerBackdropTransition() {\n const hideEvent = EventHandler.trigger(this._element, EVENT_HIDE_PREVENTED)\n if (hideEvent.defaultPrevented) {\n return\n }\n\n const isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight\n const initialOverflowY = this._element.style.overflowY\n // return if the following background transition hasn't yet completed\n if (initialOverflowY === 'hidden' || this._element.classList.contains(CLASS_NAME_STATIC)) {\n return\n }\n\n if (!isModalOverflowing) {\n this._element.style.overflowY = 'hidden'\n }\n\n this._element.classList.add(CLASS_NAME_STATIC)\n this._queueCallback(() => {\n this._element.classList.remove(CLASS_NAME_STATIC)\n this._queueCallback(() => {\n this._element.style.overflowY = initialOverflowY\n }, this._dialog)\n }, this._dialog)\n\n this._element.focus()\n }\n\n /**\n * The following methods are used to handle overflowing modals\n */\n\n _adjustDialog() {\n const isModalOverflowing = this._element.scrollHeight > document.documentElement.clientHeight\n const scrollbarWidth = this._scrollBar.getWidth()\n const isBodyOverflowing = scrollbarWidth > 0\n\n if (isBodyOverflowing && !isModalOverflowing) {\n const property = isRTL() ? 'paddingLeft' : 'paddingRight'\n this._element.style[property] = `${scrollbarWidth}px`\n }\n\n if (!isBodyOverflowing && isModalOverflowing) {\n const property = isRTL() ? 'paddingRight' : 'paddingLeft'\n this._element.style[property] = `${scrollbarWidth}px`\n }\n }\n\n _resetAdjustments() {\n this._element.style.paddingLeft = ''\n this._element.style.paddingRight = ''\n }\n\n // Static\n static jQueryInterface(config, relatedTarget) {\n return this.each(function () {\n const data = Modal.getOrCreateInstance(this, config)\n\n if (typeof config !== 'string') {\n return\n }\n\n if (typeof data[config] === 'undefined') {\n throw new TypeError(`No method named \"${config}\"`)\n }\n\n data[config](relatedTarget)\n })\n }\n}\n\n/**\n * Data API implementation\n */\n\nEventHandler.on(document, EVENT_CLICK_DATA_API, SELECTOR_DATA_TOGGLE, function (event) {\n const target = SelectorEngine.getElementFromSelector(this)\n\n if (['A', 'AREA'].includes(this.tagName)) {\n event.preventDefault()\n }\n\n EventHandler.one(target, EVENT_SHOW, showEvent => {\n if (showEvent.defaultPrevented) {\n // only register focus restorer if modal will actually get shown\n return\n }\n\n EventHandler.one(target, EVENT_HIDDEN, () => {\n if (isVisible(this)) {\n this.focus()\n }\n })\n })\n\n // avoid conflict when clicking modal toggler while another one is open\n const alreadyOpen = SelectorEngine.findOne(OPEN_SELECTOR)\n if (alreadyOpen) {\n Modal.getInstance(alreadyOpen).hide()\n }\n\n const data = Modal.getOrCreateInstance(target)\n\n data.toggle(this)\n})\n\nenableDismissTrigger(Modal)\n\n/**\n * jQuery\n */\n\ndefineJQueryPlugin(Modal)\n\nexport default Modal\n", "(function webpackUniversalModuleDefinition(root, factory) {\n\tif(typeof exports === 'object' && typeof module === 'object')\n\t\tmodule.exports = root.pdfjsLib = factory();\n\telse if(typeof define === 'function' && define.amd)\n\t\tdefine(\"pdfjs-dist/build/pdf\", [], factory);\n\telse if(typeof exports === 'object')\n\t\texports[\"pdfjs-dist/build/pdf\"] = factory();\n\telse\n\t\troot[\"pdfjs-dist/build/pdf\"] = factory();\n})(globalThis, () => {\nreturn ", "/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n/* globals process */\n\n// NW.js / Electron is a browser context, but copies some Node.js objects; see\n// http://docs.nwjs.io/en/latest/For%20Users/Advanced/JavaScript%20Contexts%20in%20NW.js/#access-nodejs-and-nwjs-api-in-browser-context\n// https://www.electronjs.org/docs/api/process#processversionselectron-readonly\n// https://www.electronjs.org/docs/api/process#processtype-readonly\nconst isNodeJS =\n (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"GENERIC\")) &&\n typeof process === \"object\" &&\n process + \"\" === \"[object process]\" &&\n !process.versions.nw &&\n !(process.versions.electron && process.type && process.type !== \"browser\");\n\nconst IDENTITY_MATRIX = [1, 0, 0, 1, 0, 0];\nconst FONT_IDENTITY_MATRIX = [0.001, 0, 0, 0.001, 0, 0];\n\nconst MAX_IMAGE_SIZE_TO_CACHE = 10e6; // Ten megabytes.\n\n// Represent the percentage of the height of a single-line field over\n// the font size. Acrobat seems to use this value.\nconst LINE_FACTOR = 1.35;\nconst LINE_DESCENT_FACTOR = 0.35;\nconst BASELINE_FACTOR = LINE_DESCENT_FACTOR / LINE_FACTOR;\n\n/**\n * Refer to the `WorkerTransport.getRenderingIntent`-method in the API, to see\n * how these flags are being used:\n * - ANY, DISPLAY, and PRINT are the normal rendering intents, note the\n * `PDFPageProxy.{render, getOperatorList, getAnnotations}`-methods.\n * - ANNOTATIONS_FORMS, ANNOTATIONS_STORAGE, ANNOTATIONS_DISABLE control which\n * annotations are rendered onto the canvas (i.e. by being included in the\n * operatorList), note the `PDFPageProxy.{render, getOperatorList}`-methods\n * and their `annotationMode`-option.\n * - OPLIST is used with the `PDFPageProxy.getOperatorList`-method, note the\n * `OperatorList`-constructor (on the worker-thread).\n */\nconst RenderingIntentFlag = {\n ANY: 0x01,\n DISPLAY: 0x02,\n PRINT: 0x04,\n SAVE: 0x08,\n ANNOTATIONS_FORMS: 0x10,\n ANNOTATIONS_STORAGE: 0x20,\n ANNOTATIONS_DISABLE: 0x40,\n OPLIST: 0x100,\n};\n\nconst AnnotationMode = {\n DISABLE: 0,\n ENABLE: 1,\n ENABLE_FORMS: 2,\n ENABLE_STORAGE: 3,\n};\n\nconst AnnotationEditorPrefix = \"pdfjs_internal_editor_\";\n\nconst AnnotationEditorType = {\n DISABLE: -1,\n NONE: 0,\n FREETEXT: 3,\n STAMP: 13,\n INK: 15,\n};\n\nconst AnnotationEditorParamsType = {\n RESIZE: 1,\n CREATE: 2,\n FREETEXT_SIZE: 11,\n FREETEXT_COLOR: 12,\n FREETEXT_OPACITY: 13,\n INK_COLOR: 21,\n INK_THICKNESS: 22,\n INK_OPACITY: 23,\n};\n\n// Permission flags from Table 22, Section 7.6.3.2 of the PDF specification.\nconst PermissionFlag = {\n PRINT: 0x04,\n MODIFY_CONTENTS: 0x08,\n COPY: 0x10,\n MODIFY_ANNOTATIONS: 0x20,\n FILL_INTERACTIVE_FORMS: 0x100,\n COPY_FOR_ACCESSIBILITY: 0x200,\n ASSEMBLE: 0x400,\n PRINT_HIGH_QUALITY: 0x800,\n};\n\nconst TextRenderingMode = {\n FILL: 0,\n STROKE: 1,\n FILL_STROKE: 2,\n INVISIBLE: 3,\n FILL_ADD_TO_PATH: 4,\n STROKE_ADD_TO_PATH: 5,\n FILL_STROKE_ADD_TO_PATH: 6,\n ADD_TO_PATH: 7,\n FILL_STROKE_MASK: 3,\n ADD_TO_PATH_FLAG: 4,\n};\n\nconst ImageKind = {\n GRAYSCALE_1BPP: 1,\n RGB_24BPP: 2,\n RGBA_32BPP: 3,\n};\n\nconst AnnotationType = {\n TEXT: 1,\n LINK: 2,\n FREETEXT: 3,\n LINE: 4,\n SQUARE: 5,\n CIRCLE: 6,\n POLYGON: 7,\n POLYLINE: 8,\n HIGHLIGHT: 9,\n UNDERLINE: 10,\n SQUIGGLY: 11,\n STRIKEOUT: 12,\n STAMP: 13,\n CARET: 14,\n INK: 15,\n POPUP: 16,\n FILEATTACHMENT: 17,\n SOUND: 18,\n MOVIE: 19,\n WIDGET: 20,\n SCREEN: 21,\n PRINTERMARK: 22,\n TRAPNET: 23,\n WATERMARK: 24,\n THREED: 25,\n REDACT: 26,\n};\n\nconst AnnotationReplyType = {\n GROUP: \"Group\",\n REPLY: \"R\",\n};\n\nconst AnnotationFlag = {\n INVISIBLE: 0x01,\n HIDDEN: 0x02,\n PRINT: 0x04,\n NOZOOM: 0x08,\n NOROTATE: 0x10,\n NOVIEW: 0x20,\n READONLY: 0x40,\n LOCKED: 0x80,\n TOGGLENOVIEW: 0x100,\n LOCKEDCONTENTS: 0x200,\n};\n\nconst AnnotationFieldFlag = {\n READONLY: 0x0000001,\n REQUIRED: 0x0000002,\n NOEXPORT: 0x0000004,\n MULTILINE: 0x0001000,\n PASSWORD: 0x0002000,\n NOTOGGLETOOFF: 0x0004000,\n RADIO: 0x0008000,\n PUSHBUTTON: 0x0010000,\n COMBO: 0x0020000,\n EDIT: 0x0040000,\n SORT: 0x0080000,\n FILESELECT: 0x0100000,\n MULTISELECT: 0x0200000,\n DONOTSPELLCHECK: 0x0400000,\n DONOTSCROLL: 0x0800000,\n COMB: 0x1000000,\n RICHTEXT: 0x2000000,\n RADIOSINUNISON: 0x2000000,\n COMMITONSELCHANGE: 0x4000000,\n};\n\nconst AnnotationBorderStyleType = {\n SOLID: 1,\n DASHED: 2,\n BEVELED: 3,\n INSET: 4,\n UNDERLINE: 5,\n};\n\nconst AnnotationActionEventType = {\n E: \"Mouse Enter\",\n X: \"Mouse Exit\",\n D: \"Mouse Down\",\n U: \"Mouse Up\",\n Fo: \"Focus\",\n Bl: \"Blur\",\n PO: \"PageOpen\",\n PC: \"PageClose\",\n PV: \"PageVisible\",\n PI: \"PageInvisible\",\n K: \"Keystroke\",\n F: \"Format\",\n V: \"Validate\",\n C: \"Calculate\",\n};\n\nconst DocumentActionEventType = {\n WC: \"WillClose\",\n WS: \"WillSave\",\n DS: \"DidSave\",\n WP: \"WillPrint\",\n DP: \"DidPrint\",\n};\n\nconst PageActionEventType = {\n O: \"PageOpen\",\n C: \"PageClose\",\n};\n\nconst VerbosityLevel = {\n ERRORS: 0,\n WARNINGS: 1,\n INFOS: 5,\n};\n\nconst CMapCompressionType = {\n NONE: 0,\n BINARY: 1,\n};\n\n// All the possible operations for an operator list.\nconst OPS = {\n // Intentionally start from 1 so it is easy to spot bad operators that will be\n // 0's.\n // PLEASE NOTE: We purposely keep any removed operators commented out, since\n // re-numbering the list would risk breaking third-party users.\n dependency: 1,\n setLineWidth: 2,\n setLineCap: 3,\n setLineJoin: 4,\n setMiterLimit: 5,\n setDash: 6,\n setRenderingIntent: 7,\n setFlatness: 8,\n setGState: 9,\n save: 10,\n restore: 11,\n transform: 12,\n moveTo: 13,\n lineTo: 14,\n curveTo: 15,\n curveTo2: 16,\n curveTo3: 17,\n closePath: 18,\n rectangle: 19,\n stroke: 20,\n closeStroke: 21,\n fill: 22,\n eoFill: 23,\n fillStroke: 24,\n eoFillStroke: 25,\n closeFillStroke: 26,\n closeEOFillStroke: 27,\n endPath: 28,\n clip: 29,\n eoClip: 30,\n beginText: 31,\n endText: 32,\n setCharSpacing: 33,\n setWordSpacing: 34,\n setHScale: 35,\n setLeading: 36,\n setFont: 37,\n setTextRenderingMode: 38,\n setTextRise: 39,\n moveText: 40,\n setLeadingMoveText: 41,\n setTextMatrix: 42,\n nextLine: 43,\n showText: 44,\n showSpacedText: 45,\n nextLineShowText: 46,\n nextLineSetSpacingShowText: 47,\n setCharWidth: 48,\n setCharWidthAndBounds: 49,\n setStrokeColorSpace: 50,\n setFillColorSpace: 51,\n setStrokeColor: 52,\n setStrokeColorN: 53,\n setFillColor: 54,\n setFillColorN: 55,\n setStrokeGray: 56,\n setFillGray: 57,\n setStrokeRGBColor: 58,\n setFillRGBColor: 59,\n setStrokeCMYKColor: 60,\n setFillCMYKColor: 61,\n shadingFill: 62,\n beginInlineImage: 63,\n beginImageData: 64,\n endInlineImage: 65,\n paintXObject: 66,\n markPoint: 67,\n markPointProps: 68,\n beginMarkedContent: 69,\n beginMarkedContentProps: 70,\n endMarkedContent: 71,\n beginCompat: 72,\n endCompat: 73,\n paintFormXObjectBegin: 74,\n paintFormXObjectEnd: 75,\n beginGroup: 76,\n endGroup: 77,\n // beginAnnotations: 78,\n // endAnnotations: 79,\n beginAnnotation: 80,\n endAnnotation: 81,\n // paintJpegXObject: 82,\n paintImageMaskXObject: 83,\n paintImageMaskXObjectGroup: 84,\n paintImageXObject: 85,\n paintInlineImageXObject: 86,\n paintInlineImageXObjectGroup: 87,\n paintImageXObjectRepeat: 88,\n paintImageMaskXObjectRepeat: 89,\n paintSolidColorImageMask: 90,\n constructPath: 91,\n};\n\nconst PasswordResponses = {\n NEED_PASSWORD: 1,\n INCORRECT_PASSWORD: 2,\n};\n\nlet verbosity = VerbosityLevel.WARNINGS;\n\nfunction setVerbosityLevel(level) {\n if (Number.isInteger(level)) {\n verbosity = level;\n }\n}\n\nfunction getVerbosityLevel() {\n return verbosity;\n}\n\n// A notice for devs. These are good for things that are helpful to devs, such\n// as warning that Workers were disabled, which is important to devs but not\n// end users.\nfunction info(msg) {\n if (verbosity >= VerbosityLevel.INFOS) {\n console.log(`Info: ${msg}`);\n }\n}\n\n// Non-fatal warnings.\nfunction warn(msg) {\n if (verbosity >= VerbosityLevel.WARNINGS) {\n console.log(`Warning: ${msg}`);\n }\n}\n\nfunction unreachable(msg) {\n throw new Error(msg);\n}\n\nfunction assert(cond, msg) {\n if (!cond) {\n unreachable(msg);\n }\n}\n\n// Checks if URLs use one of the allowed protocols, e.g. to avoid XSS.\nfunction _isValidProtocol(url) {\n switch (url?.protocol) {\n case \"http:\":\n case \"https:\":\n case \"ftp:\":\n case \"mailto:\":\n case \"tel:\":\n return true;\n default:\n return false;\n }\n}\n\n/**\n * Attempts to create a valid absolute URL.\n *\n * @param {URL|string} url - An absolute, or relative, URL.\n * @param {URL|string} [baseUrl] - An absolute URL.\n * @param {Object} [options]\n * @returns Either a valid {URL}, or `null` otherwise.\n */\nfunction createValidAbsoluteUrl(url, baseUrl = null, options = null) {\n if (!url) {\n return null;\n }\n try {\n if (options && typeof url === \"string\") {\n // Let URLs beginning with \"www.\" default to using the \"http://\" protocol.\n if (options.addDefaultProtocol && url.startsWith(\"www.\")) {\n const dots = url.match(/\\./g);\n // Avoid accidentally matching a *relative* URL pointing to a file named\n // e.g. \"www.pdf\" or similar.\n if (dots?.length >= 2) {\n url = `http://${url}`;\n }\n }\n\n // According to ISO 32000-1:2008, section 12.6.4.7, URIs should be encoded\n // in 7-bit ASCII. Some bad PDFs use UTF-8 encoding; see bug 1122280.\n if (options.tryConvertEncoding) {\n try {\n url = stringToUTF8String(url);\n } catch {}\n }\n }\n\n const absoluteUrl = baseUrl ? new URL(url, baseUrl) : new URL(url);\n if (_isValidProtocol(absoluteUrl)) {\n return absoluteUrl;\n }\n } catch {\n /* `new URL()` will throw on incorrect data. */\n }\n return null;\n}\n\nfunction shadow(obj, prop, value, nonSerializable = false) {\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")) {\n assert(\n prop in obj,\n `shadow: Property \"${prop && prop.toString()}\" not found in object.`\n );\n }\n Object.defineProperty(obj, prop, {\n value,\n enumerable: !nonSerializable,\n configurable: true,\n writable: false,\n });\n return value;\n}\n\n/**\n * @type {any}\n */\nconst BaseException = (function BaseExceptionClosure() {\n // eslint-disable-next-line no-shadow\n function BaseException(message, name) {\n if (this.constructor === BaseException) {\n unreachable(\"Cannot initialize BaseException.\");\n }\n this.message = message;\n this.name = name;\n }\n BaseException.prototype = new Error();\n BaseException.constructor = BaseException;\n\n return BaseException;\n})();\n\nclass PasswordException extends BaseException {\n constructor(msg, code) {\n super(msg, \"PasswordException\");\n this.code = code;\n }\n}\n\nclass UnknownErrorException extends BaseException {\n constructor(msg, details) {\n super(msg, \"UnknownErrorException\");\n this.details = details;\n }\n}\n\nclass InvalidPDFException extends BaseException {\n constructor(msg) {\n super(msg, \"InvalidPDFException\");\n }\n}\n\nclass MissingPDFException extends BaseException {\n constructor(msg) {\n super(msg, \"MissingPDFException\");\n }\n}\n\nclass UnexpectedResponseException extends BaseException {\n constructor(msg, status) {\n super(msg, \"UnexpectedResponseException\");\n this.status = status;\n }\n}\n\n/**\n * Error caused during parsing PDF data.\n */\nclass FormatError extends BaseException {\n constructor(msg) {\n super(msg, \"FormatError\");\n }\n}\n\n/**\n * Error used to indicate task cancellation.\n */\nclass AbortException extends BaseException {\n constructor(msg) {\n super(msg, \"AbortException\");\n }\n}\n\nfunction bytesToString(bytes) {\n if (typeof bytes !== \"object\" || bytes?.length === undefined) {\n unreachable(\"Invalid argument for bytesToString\");\n }\n const length = bytes.length;\n const MAX_ARGUMENT_COUNT = 8192;\n if (length < MAX_ARGUMENT_COUNT) {\n return String.fromCharCode.apply(null, bytes);\n }\n const strBuf = [];\n for (let i = 0; i < length; i += MAX_ARGUMENT_COUNT) {\n const chunkEnd = Math.min(i + MAX_ARGUMENT_COUNT, length);\n const chunk = bytes.subarray(i, chunkEnd);\n strBuf.push(String.fromCharCode.apply(null, chunk));\n }\n return strBuf.join(\"\");\n}\n\nfunction stringToBytes(str) {\n if (typeof str !== \"string\") {\n unreachable(\"Invalid argument for stringToBytes\");\n }\n const length = str.length;\n const bytes = new Uint8Array(length);\n for (let i = 0; i < length; ++i) {\n bytes[i] = str.charCodeAt(i) & 0xff;\n }\n return bytes;\n}\n\nfunction string32(value) {\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")) {\n assert(\n typeof value === \"number\" && Math.abs(value) < 2 ** 32,\n `string32: Unexpected input \"${value}\".`\n );\n }\n return String.fromCharCode(\n (value >> 24) & 0xff,\n (value >> 16) & 0xff,\n (value >> 8) & 0xff,\n value & 0xff\n );\n}\n\nfunction objectSize(obj) {\n return Object.keys(obj).length;\n}\n\n// Ensure that the returned Object has a `null` prototype; hence why\n// `Object.fromEntries(...)` is not used.\nfunction objectFromMap(map) {\n const obj = Object.create(null);\n for (const [key, value] of map) {\n obj[key] = value;\n }\n return obj;\n}\n\n// Checks the endianness of the platform.\nfunction isLittleEndian() {\n const buffer8 = new Uint8Array(4);\n buffer8[0] = 1;\n const view32 = new Uint32Array(buffer8.buffer, 0, 1);\n return view32[0] === 1;\n}\n\n// Checks if it's possible to eval JS expressions.\nfunction isEvalSupported() {\n try {\n new Function(\"\"); // eslint-disable-line no-new, no-new-func\n return true;\n } catch {\n return false;\n }\n}\n\nclass FeatureTest {\n static get isLittleEndian() {\n return shadow(this, \"isLittleEndian\", isLittleEndian());\n }\n\n static get isEvalSupported() {\n return shadow(this, \"isEvalSupported\", isEvalSupported());\n }\n\n static get isOffscreenCanvasSupported() {\n return shadow(\n this,\n \"isOffscreenCanvasSupported\",\n typeof OffscreenCanvas !== \"undefined\"\n );\n }\n\n static get platform() {\n if (\n (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"GENERIC\")) &&\n typeof navigator === \"undefined\"\n ) {\n return shadow(this, \"platform\", { isWin: false, isMac: false });\n }\n return shadow(this, \"platform\", {\n isWin: navigator.platform.includes(\"Win\"),\n isMac: navigator.platform.includes(\"Mac\"),\n });\n }\n\n static get isCSSRoundSupported() {\n return shadow(\n this,\n \"isCSSRoundSupported\",\n globalThis.CSS?.supports?.(\"width: round(1.5px, 1px)\")\n );\n }\n}\n\nconst hexNumbers = [...Array(256).keys()].map(n =>\n n.toString(16).padStart(2, \"0\")\n);\n\nclass Util {\n static makeHexColor(r, g, b) {\n return `#${hexNumbers[r]}${hexNumbers[g]}${hexNumbers[b]}`;\n }\n\n // Apply a scaling matrix to some min/max values.\n // If a scaling factor is negative then min and max must be\n // swaped.\n static scaleMinMax(transform, minMax) {\n let temp;\n if (transform[0]) {\n if (transform[0] < 0) {\n temp = minMax[0];\n minMax[0] = minMax[1];\n minMax[1] = temp;\n }\n minMax[0] *= transform[0];\n minMax[1] *= transform[0];\n\n if (transform[3] < 0) {\n temp = minMax[2];\n minMax[2] = minMax[3];\n minMax[3] = temp;\n }\n minMax[2] *= transform[3];\n minMax[3] *= transform[3];\n } else {\n temp = minMax[0];\n minMax[0] = minMax[2];\n minMax[2] = temp;\n temp = minMax[1];\n minMax[1] = minMax[3];\n minMax[3] = temp;\n\n if (transform[1] < 0) {\n temp = minMax[2];\n minMax[2] = minMax[3];\n minMax[3] = temp;\n }\n minMax[2] *= transform[1];\n minMax[3] *= transform[1];\n\n if (transform[2] < 0) {\n temp = minMax[0];\n minMax[0] = minMax[1];\n minMax[1] = temp;\n }\n minMax[0] *= transform[2];\n minMax[1] *= transform[2];\n }\n minMax[0] += transform[4];\n minMax[1] += transform[4];\n minMax[2] += transform[5];\n minMax[3] += transform[5];\n }\n\n // Concatenates two transformation matrices together and returns the result.\n static transform(m1, m2) {\n return [\n m1[0] * m2[0] + m1[2] * m2[1],\n m1[1] * m2[0] + m1[3] * m2[1],\n m1[0] * m2[2] + m1[2] * m2[3],\n m1[1] * m2[2] + m1[3] * m2[3],\n m1[0] * m2[4] + m1[2] * m2[5] + m1[4],\n m1[1] * m2[4] + m1[3] * m2[5] + m1[5],\n ];\n }\n\n // For 2d affine transforms\n static applyTransform(p, m) {\n const xt = p[0] * m[0] + p[1] * m[2] + m[4];\n const yt = p[0] * m[1] + p[1] * m[3] + m[5];\n return [xt, yt];\n }\n\n static applyInverseTransform(p, m) {\n const d = m[0] * m[3] - m[1] * m[2];\n const xt = (p[0] * m[3] - p[1] * m[2] + m[2] * m[5] - m[4] * m[3]) / d;\n const yt = (-p[0] * m[1] + p[1] * m[0] + m[4] * m[1] - m[5] * m[0]) / d;\n return [xt, yt];\n }\n\n // Applies the transform to the rectangle and finds the minimum axially\n // aligned bounding box.\n static getAxialAlignedBoundingBox(r, m) {\n const p1 = this.applyTransform(r, m);\n const p2 = this.applyTransform(r.slice(2, 4), m);\n const p3 = this.applyTransform([r[0], r[3]], m);\n const p4 = this.applyTransform([r[2], r[1]], m);\n return [\n Math.min(p1[0], p2[0], p3[0], p4[0]),\n Math.min(p1[1], p2[1], p3[1], p4[1]),\n Math.max(p1[0], p2[0], p3[0], p4[0]),\n Math.max(p1[1], p2[1], p3[1], p4[1]),\n ];\n }\n\n static inverseTransform(m) {\n const d = m[0] * m[3] - m[1] * m[2];\n return [\n m[3] / d,\n -m[1] / d,\n -m[2] / d,\n m[0] / d,\n (m[2] * m[5] - m[4] * m[3]) / d,\n (m[4] * m[1] - m[5] * m[0]) / d,\n ];\n }\n\n // This calculation uses Singular Value Decomposition.\n // The SVD can be represented with formula A = USV. We are interested in the\n // matrix S here because it represents the scale values.\n static singularValueDecompose2dScale(m) {\n const transpose = [m[0], m[2], m[1], m[3]];\n\n // Multiply matrix m with its transpose.\n const a = m[0] * transpose[0] + m[1] * transpose[2];\n const b = m[0] * transpose[1] + m[1] * transpose[3];\n const c = m[2] * transpose[0] + m[3] * transpose[2];\n const d = m[2] * transpose[1] + m[3] * transpose[3];\n\n // Solve the second degree polynomial to get roots.\n const first = (a + d) / 2;\n const second = Math.sqrt((a + d) ** 2 - 4 * (a * d - c * b)) / 2;\n const sx = first + second || 1;\n const sy = first - second || 1;\n\n // Scale values are the square roots of the eigenvalues.\n return [Math.sqrt(sx), Math.sqrt(sy)];\n }\n\n // Normalize rectangle rect=[x1, y1, x2, y2] so that (x1,y1) < (x2,y2)\n // For coordinate systems whose origin lies in the bottom-left, this\n // means normalization to (BL,TR) ordering. For systems with origin in the\n // top-left, this means (TL,BR) ordering.\n static normalizeRect(rect) {\n const r = rect.slice(0); // clone rect\n if (rect[0] > rect[2]) {\n r[0] = rect[2];\n r[2] = rect[0];\n }\n if (rect[1] > rect[3]) {\n r[1] = rect[3];\n r[3] = rect[1];\n }\n return r;\n }\n\n // Returns a rectangle [x1, y1, x2, y2] corresponding to the\n // intersection of rect1 and rect2. If no intersection, returns 'null'\n // The rectangle coordinates of rect1, rect2 should be [x1, y1, x2, y2]\n static intersect(rect1, rect2) {\n const xLow = Math.max(\n Math.min(rect1[0], rect1[2]),\n Math.min(rect2[0], rect2[2])\n );\n const xHigh = Math.min(\n Math.max(rect1[0], rect1[2]),\n Math.max(rect2[0], rect2[2])\n );\n if (xLow > xHigh) {\n return null;\n }\n const yLow = Math.max(\n Math.min(rect1[1], rect1[3]),\n Math.min(rect2[1], rect2[3])\n );\n const yHigh = Math.min(\n Math.max(rect1[1], rect1[3]),\n Math.max(rect2[1], rect2[3])\n );\n if (yLow > yHigh) {\n return null;\n }\n\n return [xLow, yLow, xHigh, yHigh];\n }\n\n // From https://github.com/adobe-webplatform/Snap.svg/blob/b365287722a72526000ac4bfcf0ce4cac2faa015/src/path.js#L852\n static bezierBoundingBox(x0, y0, x1, y1, x2, y2, x3, y3) {\n const tvalues = [],\n bounds = [[], []];\n let a, b, c, t, t1, t2, b2ac, sqrtb2ac;\n for (let i = 0; i < 2; ++i) {\n if (i === 0) {\n b = 6 * x0 - 12 * x1 + 6 * x2;\n a = -3 * x0 + 9 * x1 - 9 * x2 + 3 * x3;\n c = 3 * x1 - 3 * x0;\n } else {\n b = 6 * y0 - 12 * y1 + 6 * y2;\n a = -3 * y0 + 9 * y1 - 9 * y2 + 3 * y3;\n c = 3 * y1 - 3 * y0;\n }\n if (Math.abs(a) < 1e-12) {\n if (Math.abs(b) < 1e-12) {\n continue;\n }\n t = -c / b;\n if (0 < t && t < 1) {\n tvalues.push(t);\n }\n continue;\n }\n b2ac = b * b - 4 * c * a;\n sqrtb2ac = Math.sqrt(b2ac);\n if (b2ac < 0) {\n continue;\n }\n t1 = (-b + sqrtb2ac) / (2 * a);\n if (0 < t1 && t1 < 1) {\n tvalues.push(t1);\n }\n t2 = (-b - sqrtb2ac) / (2 * a);\n if (0 < t2 && t2 < 1) {\n tvalues.push(t2);\n }\n }\n\n let j = tvalues.length,\n mt;\n const jlen = j;\n while (j--) {\n t = tvalues[j];\n mt = 1 - t;\n bounds[0][j] =\n mt * mt * mt * x0 +\n 3 * mt * mt * t * x1 +\n 3 * mt * t * t * x2 +\n t * t * t * x3;\n bounds[1][j] =\n mt * mt * mt * y0 +\n 3 * mt * mt * t * y1 +\n 3 * mt * t * t * y2 +\n t * t * t * y3;\n }\n\n bounds[0][jlen] = x0;\n bounds[1][jlen] = y0;\n bounds[0][jlen + 1] = x3;\n bounds[1][jlen + 1] = y3;\n bounds[0].length = bounds[1].length = jlen + 2;\n\n return [\n Math.min(...bounds[0]),\n Math.min(...bounds[1]),\n Math.max(...bounds[0]),\n Math.max(...bounds[1]),\n ];\n }\n}\n\nconst PDFStringTranslateTable = [\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0x2d8,\n 0x2c7, 0x2c6, 0x2d9, 0x2dd, 0x2db, 0x2da, 0x2dc, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,\n 0, 0, 0, 0, 0, 0, 0, 0, 0x2022, 0x2020, 0x2021, 0x2026, 0x2014, 0x2013, 0x192,\n 0x2044, 0x2039, 0x203a, 0x2212, 0x2030, 0x201e, 0x201c, 0x201d, 0x2018,\n 0x2019, 0x201a, 0x2122, 0xfb01, 0xfb02, 0x141, 0x152, 0x160, 0x178, 0x17d,\n 0x131, 0x142, 0x153, 0x161, 0x17e, 0, 0x20ac,\n];\n\nfunction stringToPDFString(str) {\n if (str[0] >= \"\\xEF\") {\n let encoding;\n if (str[0] === \"\\xFE\" && str[1] === \"\\xFF\") {\n encoding = \"utf-16be\";\n } else if (str[0] === \"\\xFF\" && str[1] === \"\\xFE\") {\n encoding = \"utf-16le\";\n } else if (str[0] === \"\\xEF\" && str[1] === \"\\xBB\" && str[2] === \"\\xBF\") {\n encoding = \"utf-8\";\n }\n\n if (encoding) {\n try {\n const decoder = new TextDecoder(encoding, { fatal: true });\n const buffer = stringToBytes(str);\n return decoder.decode(buffer);\n } catch (ex) {\n warn(`stringToPDFString: \"${ex}\".`);\n }\n }\n }\n // ISO Latin 1\n const strBuf = [];\n for (let i = 0, ii = str.length; i < ii; i++) {\n const code = PDFStringTranslateTable[str.charCodeAt(i)];\n strBuf.push(code ? String.fromCharCode(code) : str.charAt(i));\n }\n return strBuf.join(\"\");\n}\n\nfunction stringToUTF8String(str) {\n return decodeURIComponent(escape(str));\n}\n\nfunction utf8StringToString(str) {\n return unescape(encodeURIComponent(str));\n}\n\nfunction isArrayBuffer(v) {\n return typeof v === \"object\" && v?.byteLength !== undefined;\n}\n\nfunction isArrayEqual(arr1, arr2) {\n if (arr1.length !== arr2.length) {\n return false;\n }\n for (let i = 0, ii = arr1.length; i < ii; i++) {\n if (arr1[i] !== arr2[i]) {\n return false;\n }\n }\n return true;\n}\n\nfunction getModificationDate(date = new Date()) {\n const buffer = [\n date.getUTCFullYear().toString(),\n (date.getUTCMonth() + 1).toString().padStart(2, \"0\"),\n date.getUTCDate().toString().padStart(2, \"0\"),\n date.getUTCHours().toString().padStart(2, \"0\"),\n date.getUTCMinutes().toString().padStart(2, \"0\"),\n date.getUTCSeconds().toString().padStart(2, \"0\"),\n ];\n\n return buffer.join(\"\");\n}\n\nclass PromiseCapability {\n #settled = false;\n\n constructor() {\n /**\n * @type {Promise} The Promise object.\n */\n this.promise = new Promise((resolve, reject) => {\n /**\n * @type {function} Fulfills the Promise.\n */\n this.resolve = data => {\n this.#settled = true;\n resolve(data);\n };\n\n /**\n * @type {function} Rejects the Promise.\n */\n this.reject = reason => {\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")) {\n assert(reason instanceof Error, 'Expected valid \"reason\" argument.');\n }\n this.#settled = true;\n reject(reason);\n };\n });\n }\n\n /**\n * @type {boolean} If the Promise has been fulfilled/rejected.\n */\n get settled() {\n return this.#settled;\n }\n}\n\nlet NormalizeRegex = null;\nlet NormalizationMap = null;\nfunction normalizeUnicode(str) {\n if (!NormalizeRegex) {\n // In order to generate the following regex:\n // - create a PDF containing all the chars in the range 0000-FFFF with\n // a NFKC which is different of the char.\n // - copy and paste all those chars and get the ones where NFKC is\n // required.\n // It appears that most the chars here contain some ligatures.\n NormalizeRegex =\n /([\\u00a0\\u00b5\\u037e\\u0eb3\\u2000-\\u200a\\u202f\\u2126\\ufb00-\\ufb04\\ufb06\\ufb20-\\ufb36\\ufb38-\\ufb3c\\ufb3e\\ufb40-\\ufb41\\ufb43-\\ufb44\\ufb46-\\ufba1\\ufba4-\\ufba9\\ufbae-\\ufbb1\\ufbd3-\\ufbdc\\ufbde-\\ufbe7\\ufbea-\\ufbf8\\ufbfc-\\ufbfd\\ufc00-\\ufc5d\\ufc64-\\ufcf1\\ufcf5-\\ufd3d\\ufd88\\ufdf4\\ufdfa-\\ufdfb\\ufe71\\ufe77\\ufe79\\ufe7b\\ufe7d]+)|(\\ufb05+)/gu;\n NormalizationMap = new Map([[\"ſt\", \"ſt\"]]);\n }\n return str.replaceAll(NormalizeRegex, (_, p1, p2) => {\n return p1 ? p1.normalize(\"NFKC\") : NormalizationMap.get(p2);\n });\n}\n\nfunction getUuid() {\n if (\n (typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"MOZCENTRAL\")) ||\n (typeof crypto !== \"undefined\" && typeof crypto?.randomUUID === \"function\")\n ) {\n return crypto.randomUUID();\n }\n const buf = new Uint8Array(32);\n if (\n typeof crypto !== \"undefined\" &&\n typeof crypto?.getRandomValues === \"function\"\n ) {\n crypto.getRandomValues(buf);\n } else {\n for (let i = 0; i < 32; i++) {\n buf[i] = Math.floor(Math.random() * 255);\n }\n }\n return bytesToString(buf);\n}\n\nconst AnnotationPrefix = \"pdfjs_internal_id_\";\n\nexport {\n AbortException,\n AnnotationActionEventType,\n AnnotationBorderStyleType,\n AnnotationEditorParamsType,\n AnnotationEditorPrefix,\n AnnotationEditorType,\n AnnotationFieldFlag,\n AnnotationFlag,\n AnnotationMode,\n AnnotationPrefix,\n AnnotationReplyType,\n AnnotationType,\n assert,\n BaseException,\n BASELINE_FACTOR,\n bytesToString,\n CMapCompressionType,\n createValidAbsoluteUrl,\n DocumentActionEventType,\n FeatureTest,\n FONT_IDENTITY_MATRIX,\n FormatError,\n getModificationDate,\n getUuid,\n getVerbosityLevel,\n IDENTITY_MATRIX,\n ImageKind,\n info,\n InvalidPDFException,\n isArrayBuffer,\n isArrayEqual,\n isNodeJS,\n LINE_DESCENT_FACTOR,\n LINE_FACTOR,\n MAX_IMAGE_SIZE_TO_CACHE,\n MissingPDFException,\n normalizeUnicode,\n objectFromMap,\n objectSize,\n OPS,\n PageActionEventType,\n PasswordException,\n PasswordResponses,\n PermissionFlag,\n PromiseCapability,\n RenderingIntentFlag,\n setVerbosityLevel,\n shadow,\n string32,\n stringToBytes,\n stringToPDFString,\n stringToUTF8String,\n TextRenderingMode,\n UnexpectedResponseException,\n UnknownErrorException,\n unreachable,\n utf8StringToString,\n Util,\n VerbosityLevel,\n warn,\n};\n", "/* Copyright 2012 Mozilla Foundation\n *\n * Licensed under the Apache License, Version 2.0 (the \"License\");\n * you may not use this file except in compliance with the License.\n * You may obtain a copy of the License at\n *\n * http://www.apache.org/licenses/LICENSE-2.0\n *\n * Unless required by applicable law or agreed to in writing, software\n * distributed under the License is distributed on an \"AS IS\" BASIS,\n * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.\n * See the License for the specific language governing permissions and\n * limitations under the License.\n */\n\n/**\n * @module pdfjsLib\n */\n\nimport {\n AbortException,\n AnnotationMode,\n assert,\n getVerbosityLevel,\n info,\n InvalidPDFException,\n isArrayBuffer,\n isNodeJS,\n MAX_IMAGE_SIZE_TO_CACHE,\n MissingPDFException,\n PasswordException,\n PromiseCapability,\n RenderingIntentFlag,\n setVerbosityLevel,\n shadow,\n stringToBytes,\n UnexpectedResponseException,\n UnknownErrorException,\n unreachable,\n warn,\n} from \"../shared/util.js\";\nimport {\n AnnotationStorage,\n PrintAnnotationStorage,\n SerializableEmpty,\n} from \"./annotation_storage.js\";\nimport {\n deprecated,\n DOMCanvasFactory,\n DOMCMapReaderFactory,\n DOMFilterFactory,\n DOMStandardFontDataFactory,\n isDataScheme,\n isValidFetchUrl,\n loadScript,\n PageViewport,\n RenderingCancelledException,\n StatTimer,\n} from \"./display_utils.js\";\nimport { FontFaceObject, FontLoader } from \"./font_loader.js\";\nimport {\n NodeCanvasFactory,\n NodeCMapReaderFactory,\n NodeFilterFactory,\n NodeStandardFontDataFactory,\n} from \"display-node_utils\";\nimport { CanvasGraphics } from \"./canvas.js\";\nimport { GlobalWorkerOptions } from \"./worker_options.js\";\nimport { MessageHandler } from \"../shared/message_handler.js\";\nimport { Metadata } from \"./metadata.js\";\nimport { OptionalContentConfig } from \"./optional_content_config.js\";\nimport { PDFDataTransportStream } from \"./transport_stream.js\";\nimport { PDFFetchStream } from \"display-fetch_stream\";\nimport { PDFNetworkStream } from \"display-network\";\nimport { PDFNodeStream } from \"display-node_stream\";\nimport { SVGGraphics } from \"display-svg\";\nimport { XfaText } from \"./xfa_text.js\";\n\nconst DEFAULT_RANGE_CHUNK_SIZE = 65536; // 2^16 = 65536\nconst RENDERING_CANCELLED_TIMEOUT = 100; // ms\nconst DELAYED_CLEANUP_TIMEOUT = 5000; // ms\n\nconst DefaultCanvasFactory =\n typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"GENERIC\") && isNodeJS\n ? NodeCanvasFactory\n : DOMCanvasFactory;\nconst DefaultCMapReaderFactory =\n typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"GENERIC\") && isNodeJS\n ? NodeCMapReaderFactory\n : DOMCMapReaderFactory;\nconst DefaultFilterFactory =\n typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"GENERIC\") && isNodeJS\n ? NodeFilterFactory\n : DOMFilterFactory;\nconst DefaultStandardFontDataFactory =\n typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"GENERIC\") && isNodeJS\n ? NodeStandardFontDataFactory\n : DOMStandardFontDataFactory;\n\n/**\n * @typedef { Int8Array | Uint8Array | Uint8ClampedArray |\n * Int16Array | Uint16Array |\n * Int32Array | Uint32Array | Float32Array |\n * Float64Array\n * } TypedArray\n */\n\n/**\n * @typedef { TypedArray | ArrayBuffer | Array | string } BinaryData\n */\n\n/**\n * @typedef {Object} RefProxy\n * @property {number} num\n * @property {number} gen\n */\n\n/**\n * Document initialization / loading parameters object.\n *\n * @typedef {Object} DocumentInitParameters\n * @property {string | URL} [url] - The URL of the PDF.\n * @property {BinaryData} [data] - Binary PDF data.\n * Use TypedArrays (Uint8Array) to improve the memory usage. If PDF data is\n * BASE64-encoded, use `atob()` to convert it to a binary string first.\n *\n * NOTE: If TypedArrays are used they will generally be transferred to the\n * worker-thread. This will help reduce main-thread memory usage, however\n * it will take ownership of the TypedArrays.\n * @property {Object} [httpHeaders] - Basic authentication headers.\n * @property {boolean} [withCredentials] - Indicates whether or not\n * cross-site Access-Control requests should be made using credentials such\n * as cookies or authorization headers. The default is `false`.\n * @property {string} [password] - For decrypting password-protected PDFs.\n * @property {number} [length] - The PDF file length. It's used for progress\n * reports and range requests operations.\n * @property {PDFDataRangeTransport} [range] - Allows for using a custom range\n * transport implementation.\n * @property {number} [rangeChunkSize] - Specify maximum number of bytes fetched\n * per range request. The default value is {@link DEFAULT_RANGE_CHUNK_SIZE}.\n * @property {PDFWorker} [worker] - The worker that will be used for loading and\n * parsing the PDF data.\n * @property {number} [verbosity] - Controls the logging level; the constants\n * from {@link VerbosityLevel} should be used.\n * @property {string} [docBaseUrl] - The base URL of the document, used when\n * attempting to recover valid absolute URLs for annotations, and outline\n * items, that (incorrectly) only specify relative URLs.\n * @property {string} [cMapUrl] - The URL where the predefined Adobe CMaps are\n * located. Include the trailing slash.\n * @property {boolean} [cMapPacked] - Specifies if the Adobe CMaps are binary\n * packed or not. The default value is `true`.\n * @property {Object} [CMapReaderFactory] - The factory that will be used when\n * reading built-in CMap files. Providing a custom factory is useful for\n * environments without Fetch API or `XMLHttpRequest` support, such as\n * Node.js. The default value is {DOMCMapReaderFactory}.\n * @property {boolean} [useSystemFonts] - When `true`, fonts that aren't\n * embedded in the PDF document will fallback to a system font.\n * The default value is `true` in web environments and `false` in Node.js;\n * unless `disableFontFace === true` in which case this defaults to `false`\n * regardless of the environment (to prevent completely broken fonts).\n * @property {string} [standardFontDataUrl] - The URL where the standard font\n * files are located. Include the trailing slash.\n * @property {Object} [StandardFontDataFactory] - The factory that will be used\n * when reading the standard font files. Providing a custom factory is useful\n * for environments without Fetch API or `XMLHttpRequest` support, such as\n * Node.js. The default value is {DOMStandardFontDataFactory}.\n * @property {boolean} [useWorkerFetch] - Enable using the Fetch API in the\n * worker-thread when reading CMap and standard font files. When `true`,\n * the `CMapReaderFactory` and `StandardFontDataFactory` options are ignored.\n * The default value is `true` in web environments and `false` in Node.js.\n * @property {boolean} [stopAtErrors] - Reject certain promises, e.g.\n * `getOperatorList`, `getTextContent`, and `RenderTask`, when the associated\n * PDF data cannot be successfully parsed, instead of attempting to recover\n * whatever possible of the data. The default value is `false`.\n * @property {number} [maxImageSize] - The maximum allowed image size in total\n * pixels, i.e. width * height. Images above this value will not be rendered.\n * Use -1 for no limit, which is also the default value.\n * @property {boolean} [isEvalSupported] - Determines if we can evaluate strings\n * as JavaScript. Primarily used to improve performance of font rendering, and\n * when parsing PDF functions. The default value is `true`.\n * @property {boolean} [isOffscreenCanvasSupported] - Determines if we can use\n * `OffscreenCanvas` in the worker. Primarily used to improve performance of\n * image conversion/rendering.\n * The default value is `true` in web environments and `false` in Node.js.\n * @property {number} [canvasMaxAreaInBytes] - The integer value is used to\n * know when an image must be resized (uses `OffscreenCanvas` in the worker).\n * If it's -1 then a possibly slow algorithm is used to guess the max value.\n * @property {boolean} [disableFontFace] - By default fonts are converted to\n * OpenType fonts and loaded via the Font Loading API or `@font-face` rules.\n * If disabled, fonts will be rendered using a built-in font renderer that\n * constructs the glyphs with primitive path commands.\n * The default value is `false` in web environments and `true` in Node.js.\n * @property {boolean} [fontExtraProperties] - Include additional properties,\n * which are unused during rendering of PDF documents, when exporting the\n * parsed font data from the worker-thread. This may be useful for debugging\n * purposes (and backwards compatibility), but note that it will lead to\n * increased memory usage. The default value is `false`.\n * @property {boolean} [enableXfa] - Render Xfa forms if any.\n * The default value is `false`.\n * @property {HTMLDocument} [ownerDocument] - Specify an explicit document\n * context to create elements with and to load resources, such as fonts,\n * into. Defaults to the current document.\n * @property {boolean} [disableRange] - Disable range request loading of PDF\n * files. When enabled, and if the server supports partial content requests,\n * then the PDF will be fetched in chunks. The default value is `false`.\n * @property {boolean} [disableStream] - Disable streaming of PDF file data.\n * By default PDF.js attempts to load PDF files in chunks. The default value\n * is `false`.\n * @property {boolean} [disableAutoFetch] - Disable pre-fetching of PDF file\n * data. When range requests are enabled PDF.js will automatically keep\n * fetching more data even if it isn't needed to display the current page.\n * The default value is `false`.\n *\n * NOTE: It is also necessary to disable streaming, see above, in order for\n * disabling of pre-fetching to work correctly.\n * @property {boolean} [pdfBug] - Enables special hooks for debugging PDF.js\n * (see `web/debugger.js`). The default value is `false`.\n * @property {Object} [canvasFactory] - The factory instance that will be used\n * when creating canvases. The default value is {new DOMCanvasFactory()}.\n * @property {Object} [filterFactory] - A factory instance that will be used\n * to create SVG filters when rendering some images on the main canvas.\n */\n\n/**\n * This is the main entry point for loading a PDF and interacting with it.\n *\n * NOTE: If a URL is used to fetch the PDF data a standard Fetch API call (or\n * XHR as fallback) is used, which means it must follow same origin rules,\n * e.g. no cross-domain requests without CORS.\n *\n * @param {string | URL | TypedArray | ArrayBuffer | DocumentInitParameters}\n * src - Can be a URL where a PDF file is located, a typed array (Uint8Array)\n * already populated with data, or a parameter object.\n * @returns {PDFDocumentLoadingTask}\n */\nfunction getDocument(src) {\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"GENERIC\")) {\n if (typeof src === \"string\" || src instanceof URL) {\n src = { url: src };\n } else if (isArrayBuffer(src)) {\n src = { data: src };\n }\n }\n if (typeof src !== \"object\") {\n throw new Error(\"Invalid parameter in getDocument, need parameter object.\");\n }\n if (!src.url && !src.data && !src.range) {\n throw new Error(\n \"Invalid parameter object: need either .data, .range or .url\"\n );\n }\n const task = new PDFDocumentLoadingTask();\n const { docId } = task;\n\n const url = src.url ? getUrlProp(src.url) : null;\n const data = src.data ? getDataProp(src.data) : null;\n const httpHeaders = src.httpHeaders || null;\n const withCredentials = src.withCredentials === true;\n const password = src.password ?? null;\n const rangeTransport =\n src.range instanceof PDFDataRangeTransport ? src.range : null;\n const rangeChunkSize =\n Number.isInteger(src.rangeChunkSize) && src.rangeChunkSize > 0\n ? src.rangeChunkSize\n : DEFAULT_RANGE_CHUNK_SIZE;\n let worker = src.worker instanceof PDFWorker ? src.worker : null;\n const verbosity = src.verbosity;\n // Ignore \"data:\"-URLs, since they can't be used to recover valid absolute\n // URLs anyway. We want to avoid sending them to the worker-thread, since\n // they contain the *entire* PDF document and can thus be arbitrarily long.\n const docBaseUrl =\n typeof src.docBaseUrl === \"string\" && !isDataScheme(src.docBaseUrl)\n ? src.docBaseUrl\n : null;\n const cMapUrl = typeof src.cMapUrl === \"string\" ? src.cMapUrl : null;\n const cMapPacked = src.cMapPacked !== false;\n const CMapReaderFactory = src.CMapReaderFactory || DefaultCMapReaderFactory;\n const standardFontDataUrl =\n typeof src.standardFontDataUrl === \"string\"\n ? src.standardFontDataUrl\n : null;\n const StandardFontDataFactory =\n src.StandardFontDataFactory || DefaultStandardFontDataFactory;\n const ignoreErrors = src.stopAtErrors !== true;\n const maxImageSize =\n Number.isInteger(src.maxImageSize) && src.maxImageSize > -1\n ? src.maxImageSize\n : -1;\n const isEvalSupported = src.isEvalSupported !== false;\n const isOffscreenCanvasSupported =\n typeof src.isOffscreenCanvasSupported === \"boolean\"\n ? src.isOffscreenCanvasSupported\n : !isNodeJS;\n const canvasMaxAreaInBytes = Number.isInteger(src.canvasMaxAreaInBytes)\n ? src.canvasMaxAreaInBytes\n : -1;\n const disableFontFace =\n typeof src.disableFontFace === \"boolean\" ? src.disableFontFace : isNodeJS;\n const fontExtraProperties = src.fontExtraProperties === true;\n const enableXfa = src.enableXfa === true;\n const ownerDocument = src.ownerDocument || globalThis.document;\n const disableRange = src.disableRange === true;\n const disableStream = src.disableStream === true;\n const disableAutoFetch = src.disableAutoFetch === true;\n const pdfBug = src.pdfBug === true;\n\n // Parameters whose default values depend on other parameters.\n const length = rangeTransport ? rangeTransport.length : src.length ?? NaN;\n const useSystemFonts =\n typeof src.useSystemFonts === \"boolean\"\n ? src.useSystemFonts\n : !isNodeJS && !disableFontFace;\n const useWorkerFetch =\n typeof src.useWorkerFetch === \"boolean\"\n ? src.useWorkerFetch\n : (typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"MOZCENTRAL\")) ||\n (CMapReaderFactory === DOMCMapReaderFactory &&\n StandardFontDataFactory === DOMStandardFontDataFactory &&\n cMapUrl &&\n standardFontDataUrl &&\n isValidFetchUrl(cMapUrl, document.baseURI) &&\n isValidFetchUrl(standardFontDataUrl, document.baseURI));\n const canvasFactory =\n src.canvasFactory || new DefaultCanvasFactory({ ownerDocument });\n const filterFactory =\n src.filterFactory || new DefaultFilterFactory({ docId, ownerDocument });\n\n // Parameters only intended for development/testing purposes.\n const styleElement =\n typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")\n ? src.styleElement\n : null;\n\n // Set the main-thread verbosity level.\n setVerbosityLevel(verbosity);\n\n // Ensure that the various factories can be initialized, when necessary,\n // since the user may provide *custom* ones.\n const transportFactory = {\n canvasFactory,\n filterFactory,\n };\n if (!useWorkerFetch) {\n transportFactory.cMapReaderFactory = new CMapReaderFactory({\n baseUrl: cMapUrl,\n isCompressed: cMapPacked,\n });\n transportFactory.standardFontDataFactory = new StandardFontDataFactory({\n baseUrl: standardFontDataUrl,\n });\n }\n\n if (!worker) {\n const workerParams = {\n verbosity,\n port: GlobalWorkerOptions.workerPort,\n };\n // Worker was not provided -- creating and owning our own. If message port\n // is specified in global worker options, using it.\n worker = workerParams.port\n ? PDFWorker.fromPort(workerParams)\n : new PDFWorker(workerParams);\n task._worker = worker;\n }\n\n const fetchDocParams = {\n docId,\n apiVersion:\n typeof PDFJSDev !== \"undefined\" && !PDFJSDev.test(\"TESTING\")\n ? PDFJSDev.eval(\"BUNDLE_VERSION\")\n : null,\n data,\n password,\n disableAutoFetch,\n rangeChunkSize,\n length,\n docBaseUrl,\n enableXfa,\n evaluatorOptions: {\n maxImageSize,\n disableFontFace,\n ignoreErrors,\n isEvalSupported,\n isOffscreenCanvasSupported,\n canvasMaxAreaInBytes,\n fontExtraProperties,\n useSystemFonts,\n cMapUrl: useWorkerFetch ? cMapUrl : null,\n standardFontDataUrl: useWorkerFetch ? standardFontDataUrl : null,\n },\n };\n const transportParams = {\n ignoreErrors,\n isEvalSupported,\n disableFontFace,\n fontExtraProperties,\n enableXfa,\n ownerDocument,\n disableAutoFetch,\n pdfBug,\n styleElement,\n };\n\n worker.promise\n .then(function () {\n if (task.destroyed) {\n throw new Error(\"Loading aborted\");\n }\n\n const workerIdPromise = _fetchDocument(worker, fetchDocParams);\n const networkStreamPromise = new Promise(function (resolve) {\n let networkStream;\n if (rangeTransport) {\n networkStream = new PDFDataTransportStream(\n {\n length,\n initialData: rangeTransport.initialData,\n progressiveDone: rangeTransport.progressiveDone,\n contentDispositionFilename:\n rangeTransport.contentDispositionFilename,\n disableRange,\n disableStream,\n },\n rangeTransport\n );\n } else if (!data) {\n if (typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"MOZCENTRAL\")) {\n throw new Error(\"Not implemented: createPDFNetworkStream\");\n }\n const createPDFNetworkStream = params => {\n if (\n typeof PDFJSDev !== \"undefined\" &&\n PDFJSDev.test(\"GENERIC\") &&\n isNodeJS\n ) {\n return new PDFNodeStream(params);\n }\n return isValidFetchUrl(params.url)\n ? new PDFFetchStream(params)\n : new PDFNetworkStream(params);\n };\n\n networkStream = createPDFNetworkStream({\n url,\n length,\n httpHeaders,\n withCredentials,\n rangeChunkSize,\n disableRange,\n disableStream,\n });\n }\n resolve(networkStream);\n });\n\n return Promise.all([workerIdPromise, networkStreamPromise]).then(\n function ([workerId, networkStream]) {\n if (task.destroyed) {\n throw new Error(\"Loading aborted\");\n }\n\n const messageHandler = new MessageHandler(\n docId,\n workerId,\n worker.port\n );\n const transport = new WorkerTransport(\n messageHandler,\n task,\n networkStream,\n transportParams,\n transportFactory\n );\n task._transport = transport;\n messageHandler.send(\"Ready\", null);\n }\n );\n })\n .catch(task._capability.reject);\n\n return task;\n}\n\n/**\n * Starts fetching of specified PDF document/data.\n *\n * @param {PDFWorker} worker\n * @param {Object} source\n * @returns {Promise} A promise that is resolved when the worker ID of\n * the `MessageHandler` is known.\n * @private\n */\nasync function _fetchDocument(worker, source) {\n if (worker.destroyed) {\n throw new Error(\"Worker was destroyed\");\n }\n const workerId = await worker.messageHandler.sendWithPromise(\n \"GetDocRequest\",\n source,\n source.data ? [source.data.buffer] : null\n );\n\n if (worker.destroyed) {\n throw new Error(\"Worker was destroyed\");\n }\n return workerId;\n}\n\nfunction getUrlProp(val) {\n if (typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"MOZCENTRAL\")) {\n return null; // The 'url' is unused with `PDFDataRangeTransport`.\n }\n if (val instanceof URL) {\n return val.href;\n }\n try {\n // The full path is required in the 'url' field.\n return new URL(val, window.location).href;\n } catch {\n if (\n typeof PDFJSDev !== \"undefined\" &&\n PDFJSDev.test(\"GENERIC\") &&\n isNodeJS &&\n typeof val === \"string\"\n ) {\n return val; // Use the url as-is in Node.js environments.\n }\n }\n throw new Error(\n \"Invalid PDF url data: \" +\n \"either string or URL-object is expected in the url property.\"\n );\n}\n\nfunction getDataProp(val) {\n // Converting string or array-like data to Uint8Array.\n if (\n typeof PDFJSDev !== \"undefined\" &&\n PDFJSDev.test(\"GENERIC\") &&\n isNodeJS &&\n typeof Buffer !== \"undefined\" && // eslint-disable-line no-undef\n val instanceof Buffer // eslint-disable-line no-undef\n ) {\n throw new Error(\n \"Please provide binary data as `Uint8Array`, rather than `Buffer`.\"\n );\n }\n if (val instanceof Uint8Array && val.byteLength === val.buffer.byteLength) {\n // Use the data as-is when it's already a Uint8Array that completely\n // \"utilizes\" its underlying ArrayBuffer, to prevent any possible\n // issues when transferring it to the worker-thread.\n return val;\n }\n if (typeof val === \"string\") {\n return stringToBytes(val);\n }\n if ((typeof val === \"object\" && !isNaN(val?.length)) || isArrayBuffer(val)) {\n return new Uint8Array(val);\n }\n throw new Error(\n \"Invalid PDF binary data: either TypedArray, \" +\n \"string, or array-like object is expected in the data property.\"\n );\n}\n\n/**\n * @typedef {Object} OnProgressParameters\n * @property {number} loaded - Currently loaded number of bytes.\n * @property {number} total - Total number of bytes in the PDF file.\n */\n\n/**\n * The loading task controls the operations required to load a PDF document\n * (such as network requests) and provides a way to listen for completion,\n * after which individual pages can be rendered.\n */\nclass PDFDocumentLoadingTask {\n static #docId = 0;\n\n constructor() {\n this._capability = new PromiseCapability();\n this._transport = null;\n this._worker = null;\n\n /**\n * Unique identifier for the document loading task.\n * @type {string}\n */\n this.docId = `d${PDFDocumentLoadingTask.#docId++}`;\n\n /**\n * Whether the loading task is destroyed or not.\n * @type {boolean}\n */\n this.destroyed = false;\n\n /**\n * Callback to request a password if a wrong or no password was provided.\n * The callback receives two parameters: a function that should be called\n * with the new password, and a reason (see {@link PasswordResponses}).\n * @type {function}\n */\n this.onPassword = null;\n\n /**\n * Callback to be able to monitor the loading progress of the PDF file\n * (necessary to implement e.g. a loading bar).\n * The callback receives an {@link OnProgressParameters} argument.\n * @type {function}\n */\n this.onProgress = null;\n }\n\n /**\n * Promise for document loading task completion.\n * @type {Promise}\n */\n get promise() {\n return this._capability.promise;\n }\n\n /**\n * Abort all network requests and destroy the worker.\n * @returns {Promise} A promise that is resolved when destruction is\n * completed.\n */\n async destroy() {\n this.destroyed = true;\n try {\n if (this._worker?.port) {\n this._worker._pendingDestroy = true;\n }\n await this._transport?.destroy();\n } catch (ex) {\n if (this._worker?.port) {\n delete this._worker._pendingDestroy;\n }\n throw ex;\n }\n\n this._transport = null;\n if (this._worker) {\n this._worker.destroy();\n this._worker = null;\n }\n }\n}\n\n/**\n * Abstract class to support range requests file loading.\n *\n * NOTE: The TypedArrays passed to the constructor and relevant methods below\n * will generally be transferred to the worker-thread. This will help reduce\n * main-thread memory usage, however it will take ownership of the TypedArrays.\n */\nclass PDFDataRangeTransport {\n /**\n * @param {number} length\n * @param {Uint8Array|null} initialData\n * @param {boolean} [progressiveDone]\n * @param {string} [contentDispositionFilename]\n */\n constructor(\n length,\n initialData,\n progressiveDone = false,\n contentDispositionFilename = null\n ) {\n this.length = length;\n this.initialData = initialData;\n this.progressiveDone = progressiveDone;\n this.contentDispositionFilename = contentDispositionFilename;\n\n this._rangeListeners = [];\n this._progressListeners = [];\n this._progressiveReadListeners = [];\n this._progressiveDoneListeners = [];\n this._readyCapability = new PromiseCapability();\n }\n\n /**\n * @param {function} listener\n */\n addRangeListener(listener) {\n this._rangeListeners.push(listener);\n }\n\n /**\n * @param {function} listener\n */\n addProgressListener(listener) {\n this._progressListeners.push(listener);\n }\n\n /**\n * @param {function} listener\n */\n addProgressiveReadListener(listener) {\n this._progressiveReadListeners.push(listener);\n }\n\n /**\n * @param {function} listener\n */\n addProgressiveDoneListener(listener) {\n this._progressiveDoneListeners.push(listener);\n }\n\n /**\n * @param {number} begin\n * @param {Uint8Array|null} chunk\n */\n onDataRange(begin, chunk) {\n for (const listener of this._rangeListeners) {\n listener(begin, chunk);\n }\n }\n\n /**\n * @param {number} loaded\n * @param {number|undefined} total\n */\n onDataProgress(loaded, total) {\n this._readyCapability.promise.then(() => {\n for (const listener of this._progressListeners) {\n listener(loaded, total);\n }\n });\n }\n\n /**\n * @param {Uint8Array|null} chunk\n */\n onDataProgressiveRead(chunk) {\n this._readyCapability.promise.then(() => {\n for (const listener of this._progressiveReadListeners) {\n listener(chunk);\n }\n });\n }\n\n onDataProgressiveDone() {\n this._readyCapability.promise.then(() => {\n for (const listener of this._progressiveDoneListeners) {\n listener();\n }\n });\n }\n\n transportReady() {\n this._readyCapability.resolve();\n }\n\n /**\n * @param {number} begin\n * @param {number} end\n */\n requestDataRange(begin, end) {\n unreachable(\"Abstract method PDFDataRangeTransport.requestDataRange\");\n }\n\n abort() {}\n}\n\n/**\n * Proxy to a `PDFDocument` in the worker thread.\n */\nclass PDFDocumentProxy {\n constructor(pdfInfo, transport) {\n this._pdfInfo = pdfInfo;\n this._transport = transport;\n\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"GENERIC\")) {\n Object.defineProperty(this, \"getJavaScript\", {\n value: () => {\n deprecated(\n \"`PDFDocumentProxy.getJavaScript`, \" +\n \"please use `PDFDocumentProxy.getJSActions` instead.\"\n );\n return this.getJSActions().then(js => {\n if (!js) {\n return js;\n }\n const jsArr = [];\n for (const name in js) {\n jsArr.push(...js[name]);\n }\n return jsArr;\n });\n },\n });\n }\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")) {\n // For testing purposes.\n Object.defineProperty(this, \"getXFADatasets\", {\n value: () => {\n return this._transport.getXFADatasets();\n },\n });\n Object.defineProperty(this, \"getXRefPrevValue\", {\n value: () => {\n return this._transport.getXRefPrevValue();\n },\n });\n Object.defineProperty(this, \"getAnnotArray\", {\n value: pageIndex => {\n return this._transport.getAnnotArray(pageIndex);\n },\n });\n }\n }\n\n /**\n * @type {AnnotationStorage} Storage for annotation data in forms.\n */\n get annotationStorage() {\n return this._transport.annotationStorage;\n }\n\n /**\n * @type {Object} The filter factory instance.\n */\n get filterFactory() {\n return this._transport.filterFactory;\n }\n\n /**\n * @type {number} Total number of pages in the PDF file.\n */\n get numPages() {\n return this._pdfInfo.numPages;\n }\n\n /**\n * @type {Array} A (not guaranteed to be) unique ID to\n * identify the PDF document.\n * NOTE: The first element will always be defined for all PDF documents,\n * whereas the second element is only defined for *modified* PDF documents.\n */\n get fingerprints() {\n return this._pdfInfo.fingerprints;\n }\n\n /**\n * @type {boolean} True if only XFA form.\n */\n get isPureXfa() {\n return shadow(this, \"isPureXfa\", !!this._transport._htmlForXfa);\n }\n\n /**\n * NOTE: This is (mostly) intended to support printing of XFA forms.\n *\n * @type {Object | null} An object representing a HTML tree structure\n * to render the XFA, or `null` when no XFA form exists.\n */\n get allXfaHtml() {\n return this._transport._htmlForXfa;\n }\n\n /**\n * @param {number} pageNumber - The page number to get. The first page is 1.\n * @returns {Promise} A promise that is resolved with\n * a {@link PDFPageProxy} object.\n */\n getPage(pageNumber) {\n return this._transport.getPage(pageNumber);\n }\n\n /**\n * @param {RefProxy} ref - The page reference.\n * @returns {Promise} A promise that is resolved with the page index,\n * starting from zero, that is associated with the reference.\n */\n getPageIndex(ref) {\n return this._transport.getPageIndex(ref);\n }\n\n /**\n * @returns {Promise>>} A promise that is resolved\n * with a mapping from named destinations to references.\n *\n * This can be slow for large documents. Use `getDestination` instead.\n */\n getDestinations() {\n return this._transport.getDestinations();\n }\n\n /**\n * @param {string} id - The named destination to get.\n * @returns {Promise | null>} A promise that is resolved with all\n * information of the given named destination, or `null` when the named\n * destination is not present in the PDF file.\n */\n getDestination(id) {\n return this._transport.getDestination(id);\n }\n\n /**\n * @returns {Promise | null>} A promise that is resolved with\n * an {Array} containing the page labels that correspond to the page\n * indexes, or `null` when no page labels are present in the PDF file.\n */\n getPageLabels() {\n return this._transport.getPageLabels();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with a {string}\n * containing the page layout name.\n */\n getPageLayout() {\n return this._transport.getPageLayout();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with a {string}\n * containing the page mode name.\n */\n getPageMode() {\n return this._transport.getPageMode();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with an\n * {Object} containing the viewer preferences, or `null` when no viewer\n * preferences are present in the PDF file.\n */\n getViewerPreferences() {\n return this._transport.getViewerPreferences();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with an {Array}\n * containing the destination, or `null` when no open action is present\n * in the PDF.\n */\n getOpenAction() {\n return this._transport.getOpenAction();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with a lookup table\n * for mapping named attachments to their content.\n */\n getAttachments() {\n return this._transport.getAttachments();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with\n * an {Object} with the JavaScript actions:\n * - from the name tree.\n * - from A or AA entries in the catalog dictionary.\n * , or `null` if no JavaScript exists.\n */\n getJSActions() {\n return this._transport.getDocJSActions();\n }\n\n /**\n * @typedef {Object} OutlineNode\n * @property {string} title\n * @property {boolean} bold\n * @property {boolean} italic\n * @property {Uint8ClampedArray} color - The color in RGB format to use for\n * display purposes.\n * @property {string | Array | null} dest\n * @property {string | null} url\n * @property {string | undefined} unsafeUrl\n * @property {boolean | undefined} newWindow\n * @property {number | undefined} count\n * @property {Array} items\n */\n\n /**\n * @returns {Promise>} A promise that is resolved with an\n * {Array} that is a tree outline (if it has one) of the PDF file.\n */\n getOutline() {\n return this._transport.getOutline();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with\n * an {@link OptionalContentConfig} that contains all the optional content\n * groups (assuming that the document has any).\n */\n getOptionalContentConfig() {\n return this._transport.getOptionalContentConfig();\n }\n\n /**\n * @returns {Promise | null>} A promise that is resolved with\n * an {Array} that contains the permission flags for the PDF document, or\n * `null` when no permissions are present in the PDF file.\n */\n getPermissions() {\n return this._transport.getPermissions();\n }\n\n /**\n * @returns {Promise<{ info: Object, metadata: Metadata }>} A promise that is\n * resolved with an {Object} that has `info` and `metadata` properties.\n * `info` is an {Object} filled with anything available in the information\n * dictionary and similarly `metadata` is a {Metadata} object with\n * information from the metadata section of the PDF.\n */\n getMetadata() {\n return this._transport.getMetadata();\n }\n\n /**\n * @typedef {Object} MarkInfo\n * Properties correspond to Table 321 of the PDF 32000-1:2008 spec.\n * @property {boolean} Marked\n * @property {boolean} UserProperties\n * @property {boolean} Suspects\n */\n\n /**\n * @returns {Promise} A promise that is resolved with\n * a {MarkInfo} object that contains the MarkInfo flags for the PDF\n * document, or `null` when no MarkInfo values are present in the PDF file.\n */\n getMarkInfo() {\n return this._transport.getMarkInfo();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with a\n * {Uint8Array} containing the raw data of the PDF document.\n */\n getData() {\n return this._transport.getData();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with a\n * {Uint8Array} containing the full data of the saved document.\n */\n saveDocument() {\n return this._transport.saveDocument();\n }\n\n /**\n * @returns {Promise<{ length: number }>} A promise that is resolved when the\n * document's data is loaded. It is resolved with an {Object} that contains\n * the `length` property that indicates size of the PDF data in bytes.\n */\n getDownloadInfo() {\n return this._transport.downloadInfoCapability.promise;\n }\n\n /**\n * Cleans up resources allocated by the document on both the main and worker\n * threads.\n *\n * NOTE: Do not, under any circumstances, call this method when rendering is\n * currently ongoing since that may lead to rendering errors.\n *\n * @param {boolean} [keepLoadedFonts] - Let fonts remain attached to the DOM.\n * NOTE: This will increase persistent memory usage, hence don't use this\n * option unless absolutely necessary. The default value is `false`.\n * @returns {Promise} A promise that is resolved when clean-up has finished.\n */\n cleanup(keepLoadedFonts = false) {\n return this._transport.startCleanup(keepLoadedFonts || this.isPureXfa);\n }\n\n /**\n * Destroys the current document instance and terminates the worker.\n */\n destroy() {\n return this.loadingTask.destroy();\n }\n\n /**\n * @type {DocumentInitParameters} A subset of the current\n * {DocumentInitParameters}, which are needed in the viewer.\n */\n get loadingParams() {\n return this._transport.loadingParams;\n }\n\n /**\n * @type {PDFDocumentLoadingTask} The loadingTask for the current document.\n */\n get loadingTask() {\n return this._transport.loadingTask;\n }\n\n /**\n * @returns {Promise> | null>} A promise that is\n * resolved with an {Object} containing /AcroForm field data for the JS\n * sandbox, or `null` when no field data is present in the PDF file.\n */\n getFieldObjects() {\n return this._transport.getFieldObjects();\n }\n\n /**\n * @returns {Promise} A promise that is resolved with `true`\n * if some /AcroForm fields have JavaScript actions.\n */\n hasJSActions() {\n return this._transport.hasJSActions();\n }\n\n /**\n * @returns {Promise | null>} A promise that is resolved with an\n * {Array} containing IDs of annotations that have a calculation\n * action, or `null` when no such annotations are present in the PDF file.\n */\n getCalculationOrderIds() {\n return this._transport.getCalculationOrderIds();\n }\n}\n\n/**\n * Page getViewport parameters.\n *\n * @typedef {Object} GetViewportParameters\n * @property {number} scale - The desired scale of the viewport.\n * @property {number} [rotation] - The desired rotation, in degrees, of\n * the viewport. If omitted it defaults to the page rotation.\n * @property {number} [offsetX] - The horizontal, i.e. x-axis, offset.\n * The default value is `0`.\n * @property {number} [offsetY] - The vertical, i.e. y-axis, offset.\n * The default value is `0`.\n * @property {boolean} [dontFlip] - If true, the y-axis will not be\n * flipped. The default value is `false`.\n */\n\n/**\n * Page getTextContent parameters.\n *\n * @typedef {Object} getTextContentParameters\n * @property {boolean} [includeMarkedContent] - When true include marked\n * content items in the items array of TextContent. The default is `false`.\n * @property {boolean} [disableNormalization] - When true the text is *not*\n * normalized in the worker-thread. The default is `false`.\n */\n\n/**\n * Page text content.\n *\n * @typedef {Object} TextContent\n * @property {Array} items - Array of\n * {@link TextItem} and {@link TextMarkedContent} objects. TextMarkedContent\n * items are included when includeMarkedContent is true.\n * @property {Object} styles - {@link TextStyle} objects,\n * indexed by font name.\n */\n\n/**\n * Page text content part.\n *\n * @typedef {Object} TextItem\n * @property {string} str - Text content.\n * @property {string} dir - Text direction: 'ttb', 'ltr' or 'rtl'.\n * @property {Array} transform - Transformation matrix.\n * @property {number} width - Width in device space.\n * @property {number} height - Height in device space.\n * @property {string} fontName - Font name used by PDF.js for converted font.\n * @property {boolean} hasEOL - Indicating if the text content is followed by a\n * line-break.\n */\n\n/**\n * Page text marked content part.\n *\n * @typedef {Object} TextMarkedContent\n * @property {string} type - Either 'beginMarkedContent',\n * 'beginMarkedContentProps', or 'endMarkedContent'.\n * @property {string} id - The marked content identifier. Only used for type\n * 'beginMarkedContentProps'.\n */\n\n/**\n * Text style.\n *\n * @typedef {Object} TextStyle\n * @property {number} ascent - Font ascent.\n * @property {number} descent - Font descent.\n * @property {boolean} vertical - Whether or not the text is in vertical mode.\n * @property {string} fontFamily - The possible font family.\n */\n\n/**\n * Page annotation parameters.\n *\n * @typedef {Object} GetAnnotationsParameters\n * @property {string} [intent] - Determines the annotations that are fetched,\n * can be 'display' (viewable annotations), 'print' (printable annotations),\n * or 'any' (all annotations). The default value is 'display'.\n */\n\n/**\n * Page render parameters.\n *\n * @typedef {Object} RenderParameters\n * @property {CanvasRenderingContext2D} canvasContext - A 2D context of a DOM\n * Canvas object.\n * @property {PageViewport} viewport - Rendering viewport obtained by calling\n * the `PDFPageProxy.getViewport` method.\n * @property {string} [intent] - Rendering intent, can be 'display', 'print',\n * or 'any'. The default value is 'display'.\n * @property {number} [annotationMode] Controls which annotations are rendered\n * onto the canvas, for annotations with appearance-data; the values from\n * {@link AnnotationMode} should be used. The following values are supported:\n * - `AnnotationMode.DISABLE`, which disables all annotations.\n * - `AnnotationMode.ENABLE`, which includes all possible annotations (thus\n * it also depends on the `intent`-option, see above).\n * - `AnnotationMode.ENABLE_FORMS`, which excludes annotations that contain\n * interactive form elements (those will be rendered in the display layer).\n * - `AnnotationMode.ENABLE_STORAGE`, which includes all possible annotations\n * (as above) but where interactive form elements are updated with data\n * from the {@link AnnotationStorage}-instance; useful e.g. for printing.\n * The default value is `AnnotationMode.ENABLE`.\n * @property {Array} [transform] - Additional transform, applied just\n * before viewport transform.\n * @property {CanvasGradient | CanvasPattern | string} [background] - Background\n * to use for the canvas.\n * Any valid `canvas.fillStyle` can be used: a `DOMString` parsed as CSS\n * value, a `CanvasGradient` object (a linear or radial gradient) or\n * a `CanvasPattern` object (a repetitive image). The default value is\n * 'rgb(255,255,255)'.\n *\n * NOTE: This option may be partially, or completely, ignored when the\n * `pageColors`-option is used.\n * @property {Object} [pageColors] - Overwrites background and foreground colors\n * with user defined ones in order to improve readability in high contrast\n * mode.\n * @property {Promise} [optionalContentConfigPromise] -\n * A promise that should resolve with an {@link OptionalContentConfig}\n * created from `PDFDocumentProxy.getOptionalContentConfig`. If `null`,\n * the configuration will be fetched automatically with the default visibility\n * states set.\n * @property {Map} [annotationCanvasMap] - Map some\n * annotation ids with canvases used to render them.\n * @property {PrintAnnotationStorage} [printAnnotationStorage]\n */\n\n/**\n * Page getOperatorList parameters.\n *\n * @typedef {Object} GetOperatorListParameters\n * @property {string} [intent] - Rendering intent, can be 'display', 'print',\n * or 'any'. The default value is 'display'.\n * @property {number} [annotationMode] Controls which annotations are included\n * in the operatorList, for annotations with appearance-data; the values from\n * {@link AnnotationMode} should be used. The following values are supported:\n * - `AnnotationMode.DISABLE`, which disables all annotations.\n * - `AnnotationMode.ENABLE`, which includes all possible annotations (thus\n * it also depends on the `intent`-option, see above).\n * - `AnnotationMode.ENABLE_FORMS`, which excludes annotations that contain\n * interactive form elements (those will be rendered in the display layer).\n * - `AnnotationMode.ENABLE_STORAGE`, which includes all possible annotations\n * (as above) but where interactive form elements are updated with data\n * from the {@link AnnotationStorage}-instance; useful e.g. for printing.\n * The default value is `AnnotationMode.ENABLE`.\n * @property {PrintAnnotationStorage} [printAnnotationStorage]\n */\n\n/**\n * Structure tree node. The root node will have a role \"Root\".\n *\n * @typedef {Object} StructTreeNode\n * @property {Array} children - Array of\n * {@link StructTreeNode} and {@link StructTreeContent} objects.\n * @property {string} role - element's role, already mapped if a role map exists\n * in the PDF.\n */\n\n/**\n * Structure tree content.\n *\n * @typedef {Object} StructTreeContent\n * @property {string} type - either \"content\" for page and stream structure\n * elements or \"object\" for object references.\n * @property {string} id - unique id that will map to the text layer.\n */\n\n/**\n * PDF page operator list.\n *\n * @typedef {Object} PDFOperatorList\n * @property {Array} fnArray - Array containing the operator functions.\n * @property {Array} argsArray - Array containing the arguments of the\n * functions.\n */\n\n/**\n * Proxy to a `PDFPage` in the worker thread.\n */\nclass PDFPageProxy {\n #delayedCleanupTimeout = null;\n\n #pendingCleanup = false;\n\n constructor(pageIndex, pageInfo, transport, pdfBug = false) {\n this._pageIndex = pageIndex;\n this._pageInfo = pageInfo;\n this._transport = transport;\n this._stats = pdfBug ? new StatTimer() : null;\n this._pdfBug = pdfBug;\n /** @type {PDFObjects} */\n this.commonObjs = transport.commonObjs;\n this.objs = new PDFObjects();\n\n this._maybeCleanupAfterRender = false;\n this._intentStates = new Map();\n this.destroyed = false;\n }\n\n /**\n * @type {number} Page number of the page. First page is 1.\n */\n get pageNumber() {\n return this._pageIndex + 1;\n }\n\n /**\n * @type {number} The number of degrees the page is rotated clockwise.\n */\n get rotate() {\n return this._pageInfo.rotate;\n }\n\n /**\n * @type {RefProxy | null} The reference that points to this page.\n */\n get ref() {\n return this._pageInfo.ref;\n }\n\n /**\n * @type {number} The default size of units in 1/72nds of an inch.\n */\n get userUnit() {\n return this._pageInfo.userUnit;\n }\n\n /**\n * @type {Array} An array of the visible portion of the PDF page in\n * user space units [x1, y1, x2, y2].\n */\n get view() {\n return this._pageInfo.view;\n }\n\n /**\n * @param {GetViewportParameters} params - Viewport parameters.\n * @returns {PageViewport} Contains 'width' and 'height' properties\n * along with transforms required for rendering.\n */\n getViewport({\n scale,\n rotation = this.rotate,\n offsetX = 0,\n offsetY = 0,\n dontFlip = false,\n } = {}) {\n return new PageViewport({\n viewBox: this.view,\n scale,\n rotation,\n offsetX,\n offsetY,\n dontFlip,\n });\n }\n\n /**\n * @param {GetAnnotationsParameters} params - Annotation parameters.\n * @returns {Promise>} A promise that is resolved with an\n * {Array} of the annotation objects.\n */\n getAnnotations({ intent = \"display\" } = {}) {\n const intentArgs = this._transport.getRenderingIntent(intent);\n\n return this._transport.getAnnotations(\n this._pageIndex,\n intentArgs.renderingIntent\n );\n }\n\n /**\n * @returns {Promise} A promise that is resolved with an\n * {Object} with JS actions.\n */\n getJSActions() {\n return this._transport.getPageJSActions(this._pageIndex);\n }\n\n /**\n * @type {Object} The filter factory instance.\n */\n get filterFactory() {\n return this._transport.filterFactory;\n }\n\n /**\n * @type {boolean} True if only XFA form.\n */\n get isPureXfa() {\n return shadow(this, \"isPureXfa\", !!this._transport._htmlForXfa);\n }\n\n /**\n * @returns {Promise} A promise that is resolved with\n * an {Object} with a fake DOM object (a tree structure where elements\n * are {Object} with a name, attributes (class, style, ...), value and\n * children, very similar to a HTML DOM tree), or `null` if no XFA exists.\n */\n async getXfa() {\n return this._transport._htmlForXfa?.children[this._pageIndex] || null;\n }\n\n /**\n * Begins the process of rendering a page to the desired context.\n *\n * @param {RenderParameters} params - Page render parameters.\n * @returns {RenderTask} An object that contains a promise that is\n * resolved when the page finishes rendering.\n */\n render({\n canvasContext,\n viewport,\n intent = \"display\",\n annotationMode = AnnotationMode.ENABLE,\n transform = null,\n background = null,\n optionalContentConfigPromise = null,\n annotationCanvasMap = null,\n pageColors = null,\n printAnnotationStorage = null,\n }) {\n this._stats?.time(\"Overall\");\n\n const intentArgs = this._transport.getRenderingIntent(\n intent,\n annotationMode,\n printAnnotationStorage\n );\n // If there was a pending destroy, cancel it so no cleanup happens during\n // this call to render...\n this.#pendingCleanup = false;\n // ... and ensure that a delayed cleanup is always aborted.\n this.#abortDelayedCleanup();\n\n if (!optionalContentConfigPromise) {\n optionalContentConfigPromise = this._transport.getOptionalContentConfig();\n }\n\n let intentState = this._intentStates.get(intentArgs.cacheKey);\n if (!intentState) {\n intentState = Object.create(null);\n this._intentStates.set(intentArgs.cacheKey, intentState);\n }\n\n // Ensure that a pending `streamReader` cancel timeout is always aborted.\n if (intentState.streamReaderCancelTimeout) {\n clearTimeout(intentState.streamReaderCancelTimeout);\n intentState.streamReaderCancelTimeout = null;\n }\n\n const intentPrint = !!(\n intentArgs.renderingIntent & RenderingIntentFlag.PRINT\n );\n\n // If there's no displayReadyCapability yet, then the operatorList\n // was never requested before. Make the request and create the promise.\n if (!intentState.displayReadyCapability) {\n intentState.displayReadyCapability = new PromiseCapability();\n intentState.operatorList = {\n fnArray: [],\n argsArray: [],\n lastChunk: false,\n separateAnnots: null,\n };\n\n this._stats?.time(\"Page Request\");\n this._pumpOperatorList(intentArgs);\n }\n\n const complete = error => {\n intentState.renderTasks.delete(internalRenderTask);\n\n // Attempt to reduce memory usage during *printing*, by always running\n // cleanup immediately once rendering has finished.\n if (this._maybeCleanupAfterRender || intentPrint) {\n this.#pendingCleanup = true;\n }\n this.#tryCleanup(/* delayed = */ !intentPrint);\n\n if (error) {\n internalRenderTask.capability.reject(error);\n\n this._abortOperatorList({\n intentState,\n reason: error instanceof Error ? error : new Error(error),\n });\n } else {\n internalRenderTask.capability.resolve();\n }\n\n this._stats?.timeEnd(\"Rendering\");\n this._stats?.timeEnd(\"Overall\");\n };\n\n const internalRenderTask = new InternalRenderTask({\n callback: complete,\n // Only include the required properties, and *not* the entire object.\n params: {\n canvasContext,\n viewport,\n transform,\n background,\n },\n objs: this.objs,\n commonObjs: this.commonObjs,\n annotationCanvasMap,\n operatorList: intentState.operatorList,\n pageIndex: this._pageIndex,\n canvasFactory: this._transport.canvasFactory,\n filterFactory: this._transport.filterFactory,\n useRequestAnimationFrame: !intentPrint,\n pdfBug: this._pdfBug,\n pageColors,\n });\n\n (intentState.renderTasks ||= new Set()).add(internalRenderTask);\n const renderTask = internalRenderTask.task;\n\n Promise.all([\n intentState.displayReadyCapability.promise,\n optionalContentConfigPromise,\n ])\n .then(([transparency, optionalContentConfig]) => {\n if (this.destroyed) {\n complete();\n return;\n }\n this._stats?.time(\"Rendering\");\n\n internalRenderTask.initializeGraphics({\n transparency,\n optionalContentConfig,\n });\n internalRenderTask.operatorListChanged();\n })\n .catch(complete);\n\n return renderTask;\n }\n\n /**\n * @param {GetOperatorListParameters} params - Page getOperatorList\n * parameters.\n * @returns {Promise} A promise resolved with an\n * {@link PDFOperatorList} object that represents the page's operator list.\n */\n getOperatorList({\n intent = \"display\",\n annotationMode = AnnotationMode.ENABLE,\n printAnnotationStorage = null,\n } = {}) {\n if (typeof PDFJSDev !== \"undefined\" && !PDFJSDev.test(\"GENERIC\")) {\n throw new Error(\"Not implemented: getOperatorList\");\n }\n function operatorListChanged() {\n if (intentState.operatorList.lastChunk) {\n intentState.opListReadCapability.resolve(intentState.operatorList);\n\n intentState.renderTasks.delete(opListTask);\n }\n }\n\n const intentArgs = this._transport.getRenderingIntent(\n intent,\n annotationMode,\n printAnnotationStorage,\n /* isOpList = */ true\n );\n let intentState = this._intentStates.get(intentArgs.cacheKey);\n if (!intentState) {\n intentState = Object.create(null);\n this._intentStates.set(intentArgs.cacheKey, intentState);\n }\n let opListTask;\n\n if (!intentState.opListReadCapability) {\n opListTask = Object.create(null);\n opListTask.operatorListChanged = operatorListChanged;\n intentState.opListReadCapability = new PromiseCapability();\n (intentState.renderTasks ||= new Set()).add(opListTask);\n intentState.operatorList = {\n fnArray: [],\n argsArray: [],\n lastChunk: false,\n separateAnnots: null,\n };\n\n this._stats?.time(\"Page Request\");\n this._pumpOperatorList(intentArgs);\n }\n return intentState.opListReadCapability.promise;\n }\n\n /**\n * NOTE: All occurrences of whitespace will be replaced by\n * standard spaces (0x20).\n *\n * @param {getTextContentParameters} params - getTextContent parameters.\n * @returns {ReadableStream} Stream for reading text content chunks.\n */\n streamTextContent({\n includeMarkedContent = false,\n disableNormalization = false,\n } = {}) {\n const TEXT_CONTENT_CHUNK_SIZE = 100;\n\n return this._transport.messageHandler.sendWithStream(\n \"GetTextContent\",\n {\n pageIndex: this._pageIndex,\n includeMarkedContent: includeMarkedContent === true,\n disableNormalization: disableNormalization === true,\n },\n {\n highWaterMark: TEXT_CONTENT_CHUNK_SIZE,\n size(textContent) {\n return textContent.items.length;\n },\n }\n );\n }\n\n /**\n * NOTE: All occurrences of whitespace will be replaced by\n * standard spaces (0x20).\n *\n * @param {getTextContentParameters} params - getTextContent parameters.\n * @returns {Promise} A promise that is resolved with a\n * {@link TextContent} object that represents the page's text content.\n */\n getTextContent(params = {}) {\n if (this._transport._htmlForXfa) {\n // TODO: We need to revisit this once the XFA foreground patch lands and\n // only do this for non-foreground XFA.\n return this.getXfa().then(xfa => {\n return XfaText.textContent(xfa);\n });\n }\n const readableStream = this.streamTextContent(params);\n\n return new Promise(function (resolve, reject) {\n function pump() {\n reader.read().then(function ({ value, done }) {\n if (done) {\n resolve(textContent);\n return;\n }\n Object.assign(textContent.styles, value.styles);\n textContent.items.push(...value.items);\n pump();\n }, reject);\n }\n\n const reader = readableStream.getReader();\n const textContent = {\n items: [],\n styles: Object.create(null),\n };\n pump();\n });\n }\n\n /**\n * @returns {Promise} A promise that is resolved with a\n * {@link StructTreeNode} object that represents the page's structure tree,\n * or `null` when no structure tree is present for the current page.\n */\n getStructTree() {\n return this._transport.getStructTree(this._pageIndex);\n }\n\n /**\n * Destroys the page object.\n * @private\n */\n _destroy() {\n this.destroyed = true;\n\n const waitOn = [];\n for (const intentState of this._intentStates.values()) {\n this._abortOperatorList({\n intentState,\n reason: new Error(\"Page was destroyed.\"),\n force: true,\n });\n\n if (intentState.opListReadCapability) {\n // Avoid errors below, since the renderTasks are just stubs.\n continue;\n }\n for (const internalRenderTask of intentState.renderTasks) {\n waitOn.push(internalRenderTask.completed);\n internalRenderTask.cancel();\n }\n }\n this.objs.clear();\n this.#pendingCleanup = false;\n this.#abortDelayedCleanup();\n\n return Promise.all(waitOn);\n }\n\n /**\n * Cleans up resources allocated by the page.\n *\n * @param {boolean} [resetStats] - Reset page stats, if enabled.\n * The default value is `false`.\n * @returns {boolean} Indicates if clean-up was successfully run.\n */\n cleanup(resetStats = false) {\n this.#pendingCleanup = true;\n const success = this.#tryCleanup(/* delayed = */ false);\n\n if (resetStats && success) {\n this._stats &&= new StatTimer();\n }\n return success;\n }\n\n /**\n * Attempts to clean up if rendering is in a state where that's possible.\n * @param {boolean} [delayed] - Delay the cleanup, to e.g. improve zooming\n * performance in documents with large images.\n * The default value is `false`.\n * @returns {boolean} Indicates if clean-up was successfully run.\n */\n #tryCleanup(delayed = false) {\n this.#abortDelayedCleanup();\n\n if (!this.#pendingCleanup || this.destroyed) {\n return false;\n }\n if (delayed) {\n this.#delayedCleanupTimeout = setTimeout(() => {\n this.#delayedCleanupTimeout = null;\n this.#tryCleanup(/* delayed = */ false);\n }, DELAYED_CLEANUP_TIMEOUT);\n\n return false;\n }\n for (const { renderTasks, operatorList } of this._intentStates.values()) {\n if (renderTasks.size > 0 || !operatorList.lastChunk) {\n return false;\n }\n }\n this._intentStates.clear();\n this.objs.clear();\n this.#pendingCleanup = false;\n return true;\n }\n\n #abortDelayedCleanup() {\n if (this.#delayedCleanupTimeout) {\n clearTimeout(this.#delayedCleanupTimeout);\n this.#delayedCleanupTimeout = null;\n }\n }\n\n /**\n * @private\n */\n _startRenderPage(transparency, cacheKey) {\n const intentState = this._intentStates.get(cacheKey);\n if (!intentState) {\n return; // Rendering was cancelled.\n }\n this._stats?.timeEnd(\"Page Request\");\n\n // TODO Refactor RenderPageRequest to separate rendering\n // and operator list logic\n intentState.displayReadyCapability?.resolve(transparency);\n }\n\n /**\n * @private\n */\n _renderPageChunk(operatorListChunk, intentState) {\n // Add the new chunk to the current operator list.\n for (let i = 0, ii = operatorListChunk.length; i < ii; i++) {\n intentState.operatorList.fnArray.push(operatorListChunk.fnArray[i]);\n intentState.operatorList.argsArray.push(operatorListChunk.argsArray[i]);\n }\n intentState.operatorList.lastChunk = operatorListChunk.lastChunk;\n intentState.operatorList.separateAnnots = operatorListChunk.separateAnnots;\n\n // Notify all the rendering tasks there are more operators to be consumed.\n for (const internalRenderTask of intentState.renderTasks) {\n internalRenderTask.operatorListChanged();\n }\n\n if (operatorListChunk.lastChunk) {\n this.#tryCleanup(/* delayed = */ true);\n }\n }\n\n /**\n * @private\n */\n _pumpOperatorList({\n renderingIntent,\n cacheKey,\n annotationStorageSerializable,\n }) {\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")) {\n assert(\n Number.isInteger(renderingIntent) && renderingIntent > 0,\n '_pumpOperatorList: Expected valid \"renderingIntent\" argument.'\n );\n }\n const { map, transfers } = annotationStorageSerializable;\n\n const readableStream = this._transport.messageHandler.sendWithStream(\n \"GetOperatorList\",\n {\n pageIndex: this._pageIndex,\n intent: renderingIntent,\n cacheKey,\n annotationStorage: map,\n },\n transfers\n );\n const reader = readableStream.getReader();\n\n const intentState = this._intentStates.get(cacheKey);\n intentState.streamReader = reader;\n\n const pump = () => {\n reader.read().then(\n ({ value, done }) => {\n if (done) {\n intentState.streamReader = null;\n return;\n }\n if (this._transport.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n this._renderPageChunk(value, intentState);\n pump();\n },\n reason => {\n intentState.streamReader = null;\n\n if (this._transport.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n if (intentState.operatorList) {\n // Mark operator list as complete.\n intentState.operatorList.lastChunk = true;\n\n for (const internalRenderTask of intentState.renderTasks) {\n internalRenderTask.operatorListChanged();\n }\n this.#tryCleanup(/* delayed = */ true);\n }\n\n if (intentState.displayReadyCapability) {\n intentState.displayReadyCapability.reject(reason);\n } else if (intentState.opListReadCapability) {\n intentState.opListReadCapability.reject(reason);\n } else {\n throw reason;\n }\n }\n );\n };\n pump();\n }\n\n /**\n * @private\n */\n _abortOperatorList({ intentState, reason, force = false }) {\n if (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"TESTING\")) {\n assert(\n reason instanceof Error,\n '_abortOperatorList: Expected valid \"reason\" argument.'\n );\n }\n\n if (!intentState.streamReader) {\n return;\n }\n // Ensure that a pending `streamReader` cancel timeout is always aborted.\n if (intentState.streamReaderCancelTimeout) {\n clearTimeout(intentState.streamReaderCancelTimeout);\n intentState.streamReaderCancelTimeout = null;\n }\n\n if (!force) {\n // Ensure that an Error occurring in *only* one `InternalRenderTask`, e.g.\n // multiple render() calls on the same canvas, won't break all rendering.\n if (intentState.renderTasks.size > 0) {\n return;\n }\n // Don't immediately abort parsing on the worker-thread when rendering is\n // cancelled, since that will unnecessarily delay re-rendering when (for\n // partially parsed pages) e.g. zooming/rotation occurs in the viewer.\n if (reason instanceof RenderingCancelledException) {\n let delay = RENDERING_CANCELLED_TIMEOUT;\n if (reason.extraDelay > 0 && reason.extraDelay < /* ms = */ 1000) {\n // Above, we prevent the total delay from becoming arbitrarily large.\n delay += reason.extraDelay;\n }\n\n intentState.streamReaderCancelTimeout = setTimeout(() => {\n intentState.streamReaderCancelTimeout = null;\n this._abortOperatorList({ intentState, reason, force: true });\n }, delay);\n return;\n }\n }\n intentState.streamReader\n .cancel(new AbortException(reason.message))\n .catch(() => {\n // Avoid \"Uncaught promise\" messages in the console.\n });\n intentState.streamReader = null;\n\n if (this._transport.destroyed) {\n return; // Ignore any pending requests if the worker was terminated.\n }\n // Remove the current `intentState`, since a cancelled `getOperatorList`\n // call on the worker-thread cannot be re-started...\n for (const [curCacheKey, curIntentState] of this._intentStates) {\n if (curIntentState === intentState) {\n this._intentStates.delete(curCacheKey);\n break;\n }\n }\n // ... and force clean-up to ensure that any old state is always removed.\n this.cleanup();\n }\n\n /**\n * @type {StatTimer | null} Returns page stats, if enabled; returns `null`\n * otherwise.\n */\n get stats() {\n return this._stats;\n }\n}\n\nclass LoopbackPort {\n #listeners = new Set();\n\n #deferred = Promise.resolve();\n\n postMessage(obj, transfer) {\n const event = {\n data: structuredClone(\n obj,\n (typeof PDFJSDev === \"undefined\" ||\n PDFJSDev.test(\"SKIP_BABEL || TESTING\")) &&\n transfer\n ? { transfer }\n : null\n ),\n };\n\n this.#deferred.then(() => {\n for (const listener of this.#listeners) {\n listener.call(this, event);\n }\n });\n }\n\n addEventListener(name, listener) {\n this.#listeners.add(listener);\n }\n\n removeEventListener(name, listener) {\n this.#listeners.delete(listener);\n }\n\n terminate() {\n this.#listeners.clear();\n }\n}\n\n/**\n * @typedef {Object} PDFWorkerParameters\n * @property {string} [name] - The name of the worker.\n * @property {Worker} [port] - The `workerPort` object.\n * @property {number} [verbosity] - Controls the logging level;\n * the constants from {@link VerbosityLevel} should be used.\n */\n\nconst PDFWorkerUtil = {\n isWorkerDisabled: false,\n fallbackWorkerSrc: null,\n fakeWorkerId: 0,\n};\nif (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"GENERIC\")) {\n // eslint-disable-next-line no-undef\n if (isNodeJS && typeof __non_webpack_require__ === \"function\") {\n // Workers aren't supported in Node.js, force-disabling them there.\n PDFWorkerUtil.isWorkerDisabled = true;\n\n PDFWorkerUtil.fallbackWorkerSrc = PDFJSDev.test(\"LIB\")\n ? \"../pdf.worker.js\"\n : \"./pdf.worker.js\";\n } else if (typeof document === \"object\") {\n const pdfjsFilePath = document?.currentScript?.src;\n if (pdfjsFilePath) {\n PDFWorkerUtil.fallbackWorkerSrc = pdfjsFilePath.replace(\n /(\\.(?:min\\.)?js)(\\?.*)?$/i,\n \".worker$1$2\"\n );\n }\n }\n\n // Check if URLs have the same origin. For non-HTTP based URLs, returns false.\n PDFWorkerUtil.isSameOrigin = function (baseUrl, otherUrl) {\n let base;\n try {\n base = new URL(baseUrl);\n if (!base.origin || base.origin === \"null\") {\n return false; // non-HTTP url\n }\n } catch {\n return false;\n }\n\n const other = new URL(otherUrl, base);\n return base.origin === other.origin;\n };\n\n PDFWorkerUtil.createCDNWrapper = function (url) {\n // We will rely on blob URL's property to specify origin.\n // We want this function to fail in case if createObjectURL or Blob do not\n // exist or fail for some reason -- our Worker creation will fail anyway.\n const wrapper = `importScripts(\"${url}\");`;\n return URL.createObjectURL(new Blob([wrapper]));\n };\n}\n\n/**\n * PDF.js web worker abstraction that controls the instantiation of PDF\n * documents. Message handlers are used to pass information from the main\n * thread to the worker thread and vice versa. If the creation of a web\n * worker is not possible, a \"fake\" worker will be used instead.\n *\n * @param {PDFWorkerParameters} params - The worker initialization parameters.\n */\nclass PDFWorker {\n static #workerPorts;\n\n constructor({\n name = null,\n port = null,\n verbosity = getVerbosityLevel(),\n } = {}) {\n this.name = name;\n this.destroyed = false;\n this.verbosity = verbosity;\n\n this._readyCapability = new PromiseCapability();\n this._port = null;\n this._webWorker = null;\n this._messageHandler = null;\n\n if (\n (typeof PDFJSDev === \"undefined\" || !PDFJSDev.test(\"MOZCENTRAL\")) &&\n port\n ) {\n if (PDFWorker.#workerPorts?.has(port)) {\n throw new Error(\"Cannot use more than one PDFWorker per port.\");\n }\n (PDFWorker.#workerPorts ||= new WeakMap()).set(port, this);\n this._initializeFromPort(port);\n return;\n }\n this._initialize();\n }\n\n /**\n * Promise for worker initialization completion.\n * @type {Promise}\n */\n get promise() {\n return this._readyCapability.promise;\n }\n\n /**\n * The current `workerPort`, when it exists.\n * @type {Worker}\n */\n get port() {\n return this._port;\n }\n\n /**\n * The current MessageHandler-instance.\n * @type {MessageHandler}\n */\n get messageHandler() {\n return this._messageHandler;\n }\n\n _initializeFromPort(port) {\n if (typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"MOZCENTRAL\")) {\n throw new Error(\"Not implemented: _initializeFromPort\");\n }\n this._port = port;\n this._messageHandler = new MessageHandler(\"main\", \"worker\", port);\n this._messageHandler.on(\"ready\", function () {\n // Ignoring \"ready\" event -- MessageHandler should already be initialized\n // and ready to accept messages.\n });\n this._readyCapability.resolve();\n // Send global setting, e.g. verbosity level.\n this._messageHandler.send(\"configure\", {\n verbosity: this.verbosity,\n });\n }\n\n _initialize() {\n // If worker support isn't disabled explicit and the browser has worker\n // support, create a new web worker and test if it/the browser fulfills\n // all requirements to run parts of pdf.js in a web worker.\n // Right now, the requirement is, that an Uint8Array is still an\n // Uint8Array as it arrives on the worker. (Chrome added this with v.15.)\n if (\n !PDFWorkerUtil.isWorkerDisabled &&\n !PDFWorker._mainThreadWorkerMessageHandler\n ) {\n let { workerSrc } = PDFWorker;\n\n try {\n // Wraps workerSrc path into blob URL, if the former does not belong\n // to the same origin.\n if (\n typeof PDFJSDev !== \"undefined\" &&\n PDFJSDev.test(\"GENERIC\") &&\n !PDFWorkerUtil.isSameOrigin(window.location.href, workerSrc)\n ) {\n workerSrc = PDFWorkerUtil.createCDNWrapper(\n new URL(workerSrc, window.location).href\n );\n }\n\n const worker =\n typeof PDFJSDev === \"undefined\" &&\n !workerSrc.endsWith(\"/build/pdf.worker.js\")\n ? new Worker(workerSrc, { type: \"module\" })\n : new Worker(workerSrc);\n const messageHandler = new MessageHandler(\"main\", \"worker\", worker);\n const terminateEarly = () => {\n worker.removeEventListener(\"error\", onWorkerError);\n messageHandler.destroy();\n worker.terminate();\n if (this.destroyed) {\n this._readyCapability.reject(new Error(\"Worker was destroyed\"));\n } else {\n // Fall back to fake worker if the termination is caused by an\n // error (e.g. NetworkError / SecurityError).\n this._setupFakeWorker();\n }\n };\n\n const onWorkerError = () => {\n if (!this._webWorker) {\n // Worker failed to initialize due to an error. Clean up and fall\n // back to the fake worker.\n terminateEarly();\n }\n };\n worker.addEventListener(\"error\", onWorkerError);\n\n messageHandler.on(\"test\", data => {\n worker.removeEventListener(\"error\", onWorkerError);\n if (this.destroyed) {\n terminateEarly();\n return; // worker was destroyed\n }\n if (data) {\n this._messageHandler = messageHandler;\n this._port = worker;\n this._webWorker = worker;\n\n this._readyCapability.resolve();\n // Send global setting, e.g. verbosity level.\n messageHandler.send(\"configure\", {\n verbosity: this.verbosity,\n });\n } else {\n this._setupFakeWorker();\n messageHandler.destroy();\n worker.terminate();\n }\n });\n\n messageHandler.on(\"ready\", data => {\n worker.removeEventListener(\"error\", onWorkerError);\n if (this.destroyed) {\n terminateEarly();\n return; // worker was destroyed\n }\n try {\n sendTest();\n } catch {\n // We need fallback to a faked worker.\n this._setupFakeWorker();\n }\n });\n\n const sendTest = () => {\n const testObj = new Uint8Array();\n // Ensure that we can use `postMessage` transfers.\n messageHandler.send(\"test\", testObj, [testObj.buffer]);\n };\n\n // It might take time for the worker to initialize. We will try to send\n // the \"test\" message immediately, and once the \"ready\" message arrives.\n // The worker shall process only the first received \"test\" message.\n sendTest();\n return;\n } catch {\n info(\"The worker has been disabled.\");\n }\n }\n // Either workers are disabled, not supported or have thrown an exception.\n // Thus, we fallback to a faked worker.\n this._setupFakeWorker();\n }\n\n _setupFakeWorker() {\n if (!PDFWorkerUtil.isWorkerDisabled) {\n warn(\"Setting up fake worker.\");\n PDFWorkerUtil.isWorkerDisabled = true;\n }\n\n PDFWorker._setupFakeWorkerGlobal\n .then(WorkerMessageHandler => {\n if (this.destroyed) {\n this._readyCapability.reject(new Error(\"Worker was destroyed\"));\n return;\n }\n const port = new LoopbackPort();\n this._port = port;\n\n // All fake workers use the same port, making id unique.\n const id = `fake${PDFWorkerUtil.fakeWorkerId++}`;\n\n // If the main thread is our worker, setup the handling for the\n // messages -- the main thread sends to it self.\n const workerHandler = new MessageHandler(id + \"_worker\", id, port);\n WorkerMessageHandler.setup(workerHandler, port);\n\n const messageHandler = new MessageHandler(id, id + \"_worker\", port);\n this._messageHandler = messageHandler;\n this._readyCapability.resolve();\n // Send global setting, e.g. verbosity level.\n messageHandler.send(\"configure\", {\n verbosity: this.verbosity,\n });\n })\n .catch(reason => {\n this._readyCapability.reject(\n new Error(`Setting up fake worker failed: \"${reason.message}\".`)\n );\n });\n }\n\n /**\n * Destroys the worker instance.\n */\n destroy() {\n this.destroyed = true;\n if (this._webWorker) {\n // We need to terminate only web worker created resource.\n this._webWorker.terminate();\n this._webWorker = null;\n }\n PDFWorker.#workerPorts?.delete(this._port);\n this._port = null;\n if (this._messageHandler) {\n this._messageHandler.destroy();\n this._messageHandler = null;\n }\n }\n\n /**\n * @param {PDFWorkerParameters} params - The worker initialization parameters.\n */\n static fromPort(params) {\n if (typeof PDFJSDev !== \"undefined\" && PDFJSDev.test(\"MOZCENTRAL\")) {\n throw new Error(\"Not implemented: fromPort\");\n }\n if (!params?.port) {\n throw new Error(\"PDFWorker.fromPort - invalid method signature.\");\n }\n const cachedPort = this.#workerPorts?.get(params.port);\n if (cachedPort) {\n if (cachedPort._pendingDestroy) {\n throw new Error(\n \"PDFWorker.fromPort - the worker is being destroyed.\\n\" +\n \"Please remember to await `PDFDocumentLoadingTask.destroy()`-calls.\"\n );\n }\n return cachedPort;\n }\n return new PDFWorker(params);\n }\n\n /**\n * The current `workerSrc`, when it exists.\n * @type {string}\n */\n static get workerSrc() {\n if (GlobalWorkerOptions.workerSrc) {\n return GlobalWorkerOptions.workerSrc;\n }\n if (\n (typeof PDFJSDev === \"undefined\" || PDFJSDev.test(\"GENERIC\")) &&\n PDFWorkerUtil.fallbackWorkerSrc !== null\n ) {\n if (!isNodeJS) {\n deprecated('No \"GlobalWorkerOptions.workerSrc\" specified.');\n }\n return PDFWorkerUtil.fallbackWorkerSrc;\n }\n throw new Error('No \"GlobalWorkerOptions.workerSrc\" specified.');\n }\n\n static get _mainThreadWorkerMessageHandler() {\n try {\n return globalThis.pdfjsWorker?.WorkerMessageHandler || null;\n } catch {\n return null;\n }\n }\n\n // Loads worker code into the main-thread.\n static get _setupFakeWorkerGlobal() {\n const loader = async () => {\n const mainWorkerMessageHandler = this._mainThreadWorkerMessageHandler;\n\n if (mainWorkerMessageHandler) {\n // The worker was already loaded using e.g. a `