262 lines
9.3 KiB
JavaScript
262 lines
9.3 KiB
JavaScript
/*
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Copyright 2020 The Matrix.org Foundation C.I.C.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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import {createFetchRequest} from "./dom/request/fetch.js";
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import {xhrRequest} from "./dom/request/xhr.js";
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import {StorageFactory} from "../../matrix/storage/idb/StorageFactory.js";
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import {SessionInfoStorage} from "../../matrix/sessioninfo/localstorage/SessionInfoStorage.js";
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import {SettingsStorage} from "./dom/SettingsStorage.js";
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import {Encoding} from "./utils/Encoding.js";
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import {OlmWorker} from "../../matrix/e2ee/OlmWorker.js";
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import {IDBLogger} from "../../logging/IDBLogger.js";
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import {ConsoleLogger} from "../../logging/ConsoleLogger.js";
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import {RootView} from "./ui/RootView.js";
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import {Clock} from "./dom/Clock.js";
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import {ServiceWorkerHandler} from "./dom/ServiceWorkerHandler.js";
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import {NotificationService} from "./dom/NotificationService.js";
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import {History} from "./dom/History.js";
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import {OnlineStatus} from "./dom/OnlineStatus.js";
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import {Crypto} from "./dom/Crypto.js";
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import {estimateStorageUsage} from "./dom/StorageEstimate.js";
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import {WorkerPool} from "./dom/WorkerPool.js";
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import {BlobHandle} from "./dom/BlobHandle.js";
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import {hasReadPixelPermission, ImageHandle, VideoHandle} from "./dom/ImageHandle.js";
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import {downloadInIframe} from "./dom/download.js";
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import {Disposables} from "../../utils/Disposables.js";
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function addScript(src) {
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return new Promise(function (resolve, reject) {
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var s = document.createElement("script");
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s.setAttribute("src", src );
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s.onload=resolve;
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s.onerror=reject;
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document.body.appendChild(s);
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});
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}
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async function loadOlm(olmPaths) {
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// make crypto.getRandomValues available without
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// a prefix on IE11, needed by olm to work
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if (window.msCrypto && !window.crypto) {
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window.crypto = window.msCrypto;
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}
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if (olmPaths) {
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if (window.WebAssembly) {
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await addScript(olmPaths.wasmBundle);
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await window.Olm.init({locateFile: () => olmPaths.wasm});
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} else {
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await addScript(olmPaths.legacyBundle);
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await window.Olm.init();
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}
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return window.Olm;
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}
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return null;
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}
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// make path relative to basePath,
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// assuming it and basePath are relative to document
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function relPath(path, basePath) {
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const idx = basePath.lastIndexOf("/");
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const dir = idx === -1 ? "" : basePath.slice(0, idx);
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const dirCount = dir.length ? dir.split("/").length : 0;
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return "../".repeat(dirCount) + path;
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}
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async function loadOlmWorker(config) {
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const workerPool = new WorkerPool(config.worker, 4);
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await workerPool.init();
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const path = relPath(config.olm.legacyBundle, config.worker);
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await workerPool.sendAll({type: "load_olm", path});
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const olmWorker = new OlmWorker(workerPool);
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return olmWorker;
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}
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// needed for mobile Safari which shifts the layout viewport up without resizing it
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// when the keyboard shows (see https://bugs.webkit.org/show_bug.cgi?id=141832)
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function adaptUIOnVisualViewportResize(container) {
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if (!window.visualViewport) {
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return;
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}
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const handler = () => {
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const sessionView = container.querySelector('.SessionView');
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if (!sessionView) {
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return;
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}
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const scrollable = container.querySelector('.bottom-aligned-scroll');
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let scrollTopBefore, heightBefore, heightAfter;
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if (scrollable) {
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scrollTopBefore = scrollable.scrollTop;
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heightBefore = scrollable.offsetHeight;
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}
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// Ideally we'd use window.visualViewport.offsetTop but that seems to occasionally lag
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// behind (last tested on iOS 14.4 simulator) so we have to compute the offset manually
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const offsetTop = sessionView.offsetTop + sessionView.offsetHeight - window.visualViewport.height;
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container.style.setProperty('--ios-viewport-height', window.visualViewport.height.toString() + 'px');
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container.style.setProperty('--ios-viewport-top', offsetTop.toString() + 'px');
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if (scrollable) {
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heightAfter = scrollable.offsetHeight;
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scrollable.scrollTop = scrollTopBefore + heightBefore - heightAfter;
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}
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};
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window.visualViewport.addEventListener('resize', handler);
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return () => {
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window.visualViewport.removeEventListener('resize', handler);
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};
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}
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export class Platform {
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constructor(container, config, cryptoExtras = null, options = null) {
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this._config = config;
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this._container = container;
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this.settingsStorage = new SettingsStorage("hydrogen_setting_v1_");
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this.clock = new Clock();
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this.encoding = new Encoding();
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this.random = Math.random;
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if (options?.development) {
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this.logger = new ConsoleLogger({platform: this});
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} else {
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this.logger = new IDBLogger({name: "hydrogen_logs", platform: this});
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}
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this.history = new History();
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this.onlineStatus = new OnlineStatus();
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this._serviceWorkerHandler = null;
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if (config.serviceWorker && "serviceWorker" in navigator) {
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this._serviceWorkerHandler = new ServiceWorkerHandler();
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this._serviceWorkerHandler.registerAndStart(config.serviceWorker);
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}
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this.notificationService = new NotificationService(this._serviceWorkerHandler, config.push);
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this.crypto = new Crypto(cryptoExtras);
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this.storageFactory = new StorageFactory(this._serviceWorkerHandler);
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this.sessionInfoStorage = new SessionInfoStorage("hydrogen_sessions_v1");
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this.estimateStorageUsage = estimateStorageUsage;
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if (typeof fetch === "function") {
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this.request = createFetchRequest(this.clock.createTimeout, this._serviceWorkerHandler);
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} else {
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this.request = xhrRequest;
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}
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const isIE11 = !!window.MSInputMethodContext && !!document.documentMode;
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this.isIE11 = isIE11;
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// From https://stackoverflow.com/questions/9038625/detect-if-device-is-ios/9039885
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const isIOS = /iPad|iPhone|iPod/.test(navigator.platform) || (navigator.platform === 'MacIntel' && navigator.maxTouchPoints > 1) && !window.MSStream;
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this.isIOS = isIOS;
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this._disposables = new Disposables();
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}
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get updateService() {
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return this._serviceWorkerHandler;
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}
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loadOlm() {
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return loadOlm(this._config.olm);
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}
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get config() {
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return this._config;
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}
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async loadOlmWorker() {
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if (!window.WebAssembly) {
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return await loadOlmWorker(this._config);
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}
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}
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createAndMountRootView(vm) {
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if (this.isIE11) {
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this._container.className += " legacy";
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}
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if (this.isIOS) {
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this._container.className += " ios";
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const disposable = adaptUIOnVisualViewportResize(this._container);
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if (disposable) {
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this._disposables.track(disposable);
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}
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}
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window.__hydrogenViewModel = vm;
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const view = new RootView(vm);
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this._container.appendChild(view.mount());
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}
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setNavigation(navigation) {
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this._serviceWorkerHandler?.setNavigation(navigation);
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}
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createBlob(buffer, mimetype) {
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return BlobHandle.fromBuffer(buffer, mimetype);
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}
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saveFileAs(blobHandle, filename) {
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if (navigator.msSaveBlob) {
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navigator.msSaveBlob(blobHandle.nativeBlob, filename);
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} else {
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downloadInIframe(this._container, this._config.downloadSandbox, blobHandle, filename, this.isIOS);
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}
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}
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openFile(mimeType = null) {
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const input = document.createElement("input");
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input.setAttribute("type", "file");
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input.className = "hidden";
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if (mimeType) {
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input.setAttribute("accept", mimeType);
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}
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const promise = new Promise((resolve, reject) => {
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const checkFile = () => {
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input.removeEventListener("change", checkFile, true);
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const file = input.files[0];
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this._container.removeChild(input);
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if (file) {
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resolve({name: file.name, blob: BlobHandle.fromBlob(file)});
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} else {
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resolve();
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}
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}
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input.addEventListener("change", checkFile, true);
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});
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// IE11 needs the input to be attached to the document
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this._container.appendChild(input);
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input.click();
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return promise;
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}
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async loadImage(blob) {
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return ImageHandle.fromBlob(blob);
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}
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async loadVideo(blob) {
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return VideoHandle.fromBlob(blob);
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}
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hasReadPixelPermission() {
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return hasReadPixelPermission();
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}
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get devicePixelRatio() {
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return window.devicePixelRatio || 1;
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}
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get version() {
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return window.HYDROGEN_VERSION;
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}
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dispose() {
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this._disposables.dispose();
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}
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}
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