| 4 | const globalScope = globalThis as typeof globalThis & { navigator?: Navigator }; |
| 5 | |
| 6 | function withNavigatorValues( |
| 7 | values: Partial<Pick<Navigator, "platform" | "userAgent" | "maxTouchPoints">>, |
| 8 | run: () => void, |
| 9 | ) { |
| 10 | const hadNavigator = typeof globalScope.navigator !== "undefined"; |
| 11 | if (!hadNavigator) { |
| 12 | Object.defineProperty(globalScope, "navigator", { |
| 13 | configurable: true, |
| 14 | writable: true, |
| 15 | value: {}, |
| 16 | }); |
| 17 | } |
| 18 | |
| 19 | const activeNavigator = globalScope.navigator as Navigator; |
| 20 | const originalPlatform = Object.getOwnPropertyDescriptor(activeNavigator, "platform"); |
| 21 | const originalUserAgent = Object.getOwnPropertyDescriptor(activeNavigator, "userAgent"); |
| 22 | const originalMaxTouchPoints = Object.getOwnPropertyDescriptor( |
| 23 | activeNavigator, |
| 24 | "maxTouchPoints", |
| 25 | ); |
| 26 | Object.defineProperty(activeNavigator, "platform", { |
| 27 | configurable: true, |
| 28 | value: values.platform ?? activeNavigator.platform ?? "", |
| 29 | }); |
| 30 | Object.defineProperty(activeNavigator, "userAgent", { |
| 31 | configurable: true, |
| 32 | value: values.userAgent ?? activeNavigator.userAgent ?? "", |
| 33 | }); |
| 34 | Object.defineProperty(activeNavigator, "maxTouchPoints", { |
| 35 | configurable: true, |
| 36 | value: values.maxTouchPoints ?? activeNavigator.maxTouchPoints ?? 0, |
| 37 | }); |
| 38 | try { |
| 39 | run(); |
| 40 | } finally { |
| 41 | if (originalPlatform) { |
| 42 | Object.defineProperty(activeNavigator, "platform", originalPlatform); |
| 43 | } else { |
| 44 | delete (activeNavigator as { platform?: string }).platform; |
| 45 | } |
| 46 | if (originalUserAgent) { |
| 47 | Object.defineProperty(activeNavigator, "userAgent", originalUserAgent); |
| 48 | } else { |
| 49 | delete (activeNavigator as { userAgent?: string }).userAgent; |
| 50 | } |
| 51 | if (originalMaxTouchPoints) { |
| 52 | Object.defineProperty(activeNavigator, "maxTouchPoints", originalMaxTouchPoints); |
| 53 | } else { |
| 54 | delete (activeNavigator as { maxTouchPoints?: number }).maxTouchPoints; |
| 55 | } |
| 56 | if (!hadNavigator) { |
| 57 | Reflect.deleteProperty(globalScope, "navigator"); |
| 58 | } |
| 59 | } |
| 60 | } |
| 61 | |
| 62 | describe("isMobilePlatform", () => { |
| 63 | it("returns true for iPhone-like user agents", () => { |