[PM-8582] Move Safari browser check to libs/platform (#11007)

apps/browser/src/platform/browser/browser-api.ts

@@ -1,6 +1,7 @@
 import { Observable } from "rxjs";
 
 import { DeviceType } from "@bitwarden/common/enums";
+import { isBrowserSafariApi } from "@bitwarden/platform";
 
 import { TabMessage } from "../../types/tab-messages";
 import { BrowserPlatformUtilsService } from "../services/platform-utils/browser-platform-utils.service";
@@ -9,10 +10,7 @@ import { registerContentScriptsPolyfill } from "./browser-api.register-content-s
 
 export class BrowserApi {
   static isWebExtensionsApi: boolean = typeof browser !== "undefined";
-  static isSafariApi: boolean =
-    navigator.userAgent.indexOf(" Safari/") !== -1 &&
-    navigator.userAgent.indexOf(" Chrome/") === -1 &&
-    navigator.userAgent.indexOf(" Chromium/") === -1;
+  static isSafariApi: boolean = isBrowserSafariApi();
   static isChromeApi: boolean = !BrowserApi.isSafariApi && typeof chrome !== "undefined";
   static isFirefoxOnAndroid: boolean =
     navigator.userAgent.indexOf("Firefox/") !== -1 && navigator.userAgent.indexOf("Android") !== -1;

libs/platform/src/index.ts

@@ -0,0 +1 @@
+export * from "./services/browser-service";

libs/platform/src/services/browser-service.spec.ts

@@ -0,0 +1,41 @@
+import { isBrowserSafariApi } from "./browser-service";
+
+describe("browser-service", () => {
+  describe("isBrowserSafariApi", () => {
+    it("returns true if browser is safari", () => {
+      jest
+        .spyOn(navigator, "userAgent", "get")
+        .mockReturnValue(
+          "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/605.1.15 (KHTML, like Gecko) Version/17.6 Safari/605.1.15",
+        );
+
+      const result = isBrowserSafariApi();
+
+      expect(result).toBe(true);
+    });
+
+    it("returns false if browser is chrome", () => {
+      jest
+        .spyOn(navigator, "userAgent", "get")
+        .mockReturnValue(
+          "Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/128.0.0.0 Safari/537.36",
+        );
+
+      const result = isBrowserSafariApi();
+
+      expect(result).toBe(false);
+    });
+
+    it("returns false if browser is firefox", () => {
+      jest
+        .spyOn(navigator, "userAgent", "get")
+        .mockReturnValue(
+          "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0",
+        );
+
+      const result = isBrowserSafariApi();
+
+      expect(result).toBe(false);
+    });
+  });
+});

libs/platform/src/services/browser-service.ts

@@ -0,0 +1,7 @@
+export function isBrowserSafariApi(): boolean {
+  return (
+    navigator.userAgent.indexOf(" Safari/") !== -1 &&
+    navigator.userAgent.indexOf(" Chrome/") === -1 &&
+    navigator.userAgent.indexOf(" Chromium/") === -1
+  );
+}