PWA

node_modules/workbox-window/src/utils/WorkboxEvent.ts

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+/*
+  Copyright 2019 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+
+import {WorkboxEventTarget} from './WorkboxEventTarget.js';
+import '../_version.js';
+
+/**
+ * A minimal `Event` subclass shim.
+ * This doesn't *actually* subclass `Event` because not all browsers support
+ * constructable `EventTarget`, and using a real `Event` will error.
+ * @private
+ */
+export class WorkboxEvent<K extends keyof WorkboxEventMap> {
+  target?: WorkboxEventTarget;
+  sw?: ServiceWorker;
+  originalEvent?: Event;
+  isExternal?: boolean;
+
+  constructor(
+    public type: K,
+    props: Omit<WorkboxEventMap[K], 'target' | 'type'>,
+  ) {
+    Object.assign(this, props);
+  }
+}
+
+export interface WorkboxMessageEvent extends WorkboxEvent<'message'> {
+  data: any;
+  originalEvent: Event;
+  ports: readonly MessagePort[];
+}
+
+export interface WorkboxLifecycleEvent
+  extends WorkboxEvent<keyof WorkboxLifecycleEventMap> {
+  isUpdate?: boolean;
+}
+
+export interface WorkboxLifecycleWaitingEvent extends WorkboxLifecycleEvent {
+  wasWaitingBeforeRegister?: boolean;
+}
+
+export interface WorkboxLifecycleEventMap {
+  installing: WorkboxLifecycleEvent;
+  installed: WorkboxLifecycleEvent;
+  waiting: WorkboxLifecycleWaitingEvent;
+  activating: WorkboxLifecycleEvent;
+  activated: WorkboxLifecycleEvent;
+  controlling: WorkboxLifecycleEvent;
+  redundant: WorkboxLifecycleEvent;
+}
+
+export interface WorkboxEventMap extends WorkboxLifecycleEventMap {
+  message: WorkboxMessageEvent;
+}

node_modules/workbox-window/src/utils/WorkboxEventTarget.ts

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+/*
+  Copyright 2019 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+
+import {WorkboxEvent, WorkboxEventMap} from './WorkboxEvent.js';
+
+export type ListenerCallback = (event: WorkboxEvent<any>) => any;
+
+/**
+ * A minimal `EventTarget` shim.
+ * This is necessary because not all browsers support constructable
+ * `EventTarget`, so using a real `EventTarget` will error.
+ * @private
+ */
+export class WorkboxEventTarget {
+  private readonly _eventListenerRegistry: Map<
+    keyof WorkboxEventMap,
+    Set<ListenerCallback>
+  > = new Map();
+
+  /**
+   * @param {string} type
+   * @param {Function} listener
+   * @private
+   */
+  addEventListener<K extends keyof WorkboxEventMap>(
+    type: K,
+    listener: (event: WorkboxEventMap[K]) => any,
+  ): void {
+    const foo = this._getEventListenersByType(type);
+    foo.add(listener as ListenerCallback);
+  }
+
+  /**
+   * @param {string} type
+   * @param {Function} listener
+   * @private
+   */
+  removeEventListener<K extends keyof WorkboxEventMap>(
+    type: K,
+    listener: (event: WorkboxEventMap[K]) => any,
+  ): void {
+    this._getEventListenersByType(type).delete(listener as ListenerCallback);
+  }
+
+  /**
+   * @param {Object} event
+   * @private
+   */
+  dispatchEvent(event: WorkboxEvent<any>): void {
+    event.target = this;
+
+    const listeners = this._getEventListenersByType(event.type);
+    for (const listener of listeners) {
+      listener(event);
+    }
+  }
+
+  /**
+   * Returns a Set of listeners associated with the passed event type.
+   * If no handlers have been registered, an empty Set is returned.
+   *
+   * @param {string} type The event type.
+   * @return {Set<ListenerCallback>} An array of handler functions.
+   * @private
+   */
+  private _getEventListenersByType(type: keyof WorkboxEventMap) {
+    if (!this._eventListenerRegistry.has(type)) {
+      this._eventListenerRegistry.set(type, new Set());
+    }
+    return this._eventListenerRegistry.get(type)!;
+  }
+}

node_modules/workbox-window/src/utils/urlsMatch.ts

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+/*
+  Copyright 2019 Google LLC
+
+  Use of this source code is governed by an MIT-style
+  license that can be found in the LICENSE file or at
+  https://opensource.org/licenses/MIT.
+*/
+
+import '../_version.js';
+
+/**
+ * Returns true if two URLs have the same `.href` property. The URLS can be
+ * relative, and if they are the current location href is used to resolve URLs.
+ *
+ * @private
+ * @param {string} url1
+ * @param {string} url2
+ * @return {boolean}
+ */
+export function urlsMatch(url1: string, url2: string): boolean {
+  const {href} = location;
+  return new URL(url1, href).href === new URL(url2, href).href;
+}