mirror of
https://github.com/tutao/tutanota.git
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86 lines
2.6 KiB
JavaScript
86 lines
2.6 KiB
JavaScript
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// This env import is causing a circular dependency, which we are OK with
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import {env} from "@tensorflow/tfjs-core";
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// We always set the platform to be PlatformBrowser
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// We use a timeout to make sure the env is already initialized before setting the platform
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setTimeout(() => env().setPlatform('browser', new PlatformStub()))
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/**
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* @license
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* Copyright 2023 Google LLC.
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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*/
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export function isTypedArrayBrowser(a) {
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return a instanceof Float32Array || a instanceof Int32Array ||
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a instanceof Uint8Array || a instanceof Uint8ClampedArray;
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}
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export class PlatformStub {
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constructor() {
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}
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fetch(path, init) {
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throw new Error("fetch is not supported in this build.");
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}
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now() {
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return performance.now();
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}
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encode(text, encoding) {
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if (encoding !== 'utf-8' && encoding !== 'utf8') {
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throw new Error(`Browser's encoder only supports utf-8, but got ${encoding}`);
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}
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if (this.textEncoder == null) {
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this.textEncoder = new TextEncoder();
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}
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return this.textEncoder.encode(text);
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}
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decode(bytes, encoding) {
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return new TextDecoder(encoding).decode(bytes);
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}
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setTimeoutCustom(functionRef, delay) {
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if (typeof window === 'undefined' ||
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!env().getBool('USE_SETTIMEOUTCUSTOM')) {
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setTimeout(functionRef, delay);
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return;
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}
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this.functionRefs.push(functionRef);
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setTimeout(() => {
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window.postMessage({name: this.messageName, index: this.functionRefs.length - 1}, location.origin);
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}, delay);
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if (!this.hasEventListener) {
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this.hasEventListener = true;
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window.addEventListener('message', (event) => {
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if (event.source === window && event.data.name === this.messageName) {
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event.stopPropagation();
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const functionRef = this.functionRefs[event.data.index];
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functionRef();
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this.handledMessageCount++;
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if (this.handledMessageCount === this.functionRefs.length) {
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this.functionRefs = [];
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this.handledMessageCount = 0;
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}
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}
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}, true);
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}
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}
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isTypedArray(a) {
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return isTypedArrayBrowser(a)
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}
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}
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