Bug 1861325 - Implement TranslateEnabled enterprise policy r=mkaply,translations-reviewers,fluent-reviewers,bolsson,gregtatum

Differential Revision: https://phabricator.services.mozilla.com/D205157

Author: gregorypappas

browser/components/enterprisepolicies/Policies.sys.mjs

@@ -2392,6 +2392,12 @@ export var Policies = {
     },
   },
 
+  TranslateEnabled: {
+    onBeforeAddons(manager, param) {
+      setAndLockPref("browser.translations.enable", param);
+    },
+  },
+
   UserMessaging: {
     onBeforeAddons(manager, param) {
       if ("WhatsNew" in param) {

browser/components/enterprisepolicies/schemas/policies-schema.json

@@ -1422,6 +1422,10 @@
       "required": ["Title", "URL"]
     },
 
+    "TranslateEnabled": {
+      "type": "boolean"
+    },
+
     "UserMessaging": {
       "type": "object",
       "properties": {

browser/components/enterprisepolicies/tests/browser/browser.toml

@@ -117,6 +117,8 @@ https_first_disabled = true
 
 ["browser_policy_support_menu.js"]
 
+["browser_policy_translateenabled.js"]
+
 ["browser_policy_usermessaging.js"]
 
 ["browser_policy_websitefilter.js"]

browser/components/enterprisepolicies/tests/browser/browser_policy_translateenabled.js

@@ -0,0 +1,53 @@
+/* Any copyright is dedicated to the Public Domain.
+ * http://creativecommons.org/publicdomain/zero/1.0/ */
+
+"use strict";
+
+add_setup(async function setup() {
+  await setupPolicyEngineWithJson({
+    policies: {
+      TranslateEnabled: false,
+    },
+  });
+});
+
+add_task(async function test_translate_pref_disabled() {
+  is(
+    Services.prefs.getBoolPref("browser.translations.enable"),
+    false,
+    "The translations pref should be disabled when the enterprise policy is active."
+  );
+});
+
+add_task(async function test_translate_button_disabled() {
+  // Since testing will apply the policy after the browser has already started,
+  // we will need to open a new window to actually see changes from the policy
+  let win = await BrowserTestUtils.openNewBrowserWindow();
+
+  let appMenuButton = win.document.getElementById("PanelUI-menu-button");
+  let viewShown = BrowserTestUtils.waitForEvent(
+    win.PanelUI.mainView,
+    "ViewShown"
+  );
+
+  appMenuButton.click();
+  await viewShown;
+
+  let translateSiteButton = win.document.getElementById(
+    "appMenu-translate-button"
+  );
+
+  is(
+    translateSiteButton.hidden,
+    true,
+    "The app-menu translate button should be hidden when the enterprise policy is active."
+  );
+
+  is(
+    translateSiteButton.disabled,
+    true,
+    "The app-menu translate button should be disabled when the enterprise policy is active."
+  );
+
+  await BrowserTestUtils.closeWindow(win);
+});

browser/locales/en-US/browser/policies/policies-descriptions.ftl

@@ -221,6 +221,8 @@ policy-StartDownloadsInTempDirectory = Force downloads to start off in a local,
 
 policy-SupportMenu = Add a custom support menu item to the help menu.
 
+policy-TranslateEnabled - Enable or disable webpage translation.
+
 policy-UserMessaging = Don’t show certain messages to the user.
 
 policy-UseSystemPrintDialog = Print using the system print dialog.