79 lines
2.4 KiB
Plaintext
79 lines
2.4 KiB
Plaintext
/*
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* Copyright 2020 Adobe. All rights reserved.
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* This file is licensed to you 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. You may obtain a copy
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* of the License at 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 distributed under
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* the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR REPRESENTATIONS
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* OF ANY KIND, either express or implied. See the License for the specific language
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* governing permissions and limitations under the License.
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*/
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function testUserAgent(re: RegExp) {
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if (typeof window === 'undefined' || window.navigator == null) {
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return false;
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}
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let brands = window.navigator['userAgentData']?.brands;
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return Array.isArray(brands) && brands.some((brand: {brand: string, version: string}) => re.test(brand.brand)) ||
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re.test(window.navigator.userAgent);
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}
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function testPlatform(re: RegExp) {
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return typeof window !== 'undefined' && window.navigator != null
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? re.test(window.navigator['userAgentData']?.platform || window.navigator.platform)
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: false;
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}
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function cached(fn: () => boolean) {
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if (process.env.NODE_ENV === 'test') {
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return fn;
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}
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let res: boolean | null = null;
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return () => {
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if (res == null) {
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res = fn();
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}
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return res;
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};
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}
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export const isMac: () => boolean = cached(function () {
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return testPlatform(/^Mac/i);
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});
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export const isIPhone: () => boolean = cached(function () {
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return testPlatform(/^iPhone/i);
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});
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export const isIPad: () => boolean = cached(function () {
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return testPlatform(/^iPad/i) ||
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// iPadOS 13 lies and says it's a Mac, but we can distinguish by detecting touch support.
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(isMac() && navigator.maxTouchPoints > 1);
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});
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export const isIOS: () => boolean = cached(function () {
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return isIPhone() || isIPad();
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});
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export const isAppleDevice: () => boolean = cached(function () {
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return isMac() || isIOS();
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});
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export const isWebKit: () => boolean = cached(function () {
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return testUserAgent(/AppleWebKit/i) && !isChrome();
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});
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export const isChrome: () => boolean = cached(function () {
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return testUserAgent(/Chrome/i);
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});
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export const isAndroid: () => boolean = cached(function () {
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return testUserAgent(/Android/i);
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});
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export const isFirefox: () => boolean = cached(function () {
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return testUserAgent(/Firefox/i);
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});
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