1 files changed, 129 insertions, 0 deletions
diff --git a/toolkit/mozapps/extensions/test/xpinstall/browser_block_fullscreen_prompt.js b/toolkit/mozapps/extensions/test/xpinstall/browser_block_fullscreen_prompt.js
new file mode 100644
index 0000000000..97f09d9a9c
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+++ b/toolkit/mozapps/extensions/test/xpinstall/browser_block_fullscreen_prompt.js
@@ -0,0 +1,129 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+// This test tends to trigger a race in the fullscreen time telemetry,
+// where the fullscreen enter and fullscreen exit events (which use the
+// same histogram ID) overlap. That causes TelemetryStopwatch to log an
+// error.
+SimpleTest.ignoreAllUncaughtExceptions(true);
+
+/**
+ * Spawns content task in browser to enter / leave fullscreen
+ * @param browser - Browser to use for JS fullscreen requests
+ * @param {Boolean} fullscreenState - true to enter fullscreen, false to leave
+ */
+function changeFullscreen(browser, fullscreenState) {
+  return SpecialPowers.spawn(
+    browser,
+    [fullscreenState],
+    async function (state) {
+      if (state) {
+        await content.document.body.requestFullscreen();
+      } else {
+        await content.document.exitFullscreen();
+      }
+    }
+  );
+}
+
+function triggerInstall(browser, xpi_url) {
+  return SpecialPowers.spawn(browser, [xpi_url], async function (xpi_url) {
+    content.location = xpi_url;
+  });
+}
+
+add_setup(async () => {
+  await SpecialPowers.pushPrefEnv({
+    // Relax the user input requirements while running this test.
+    set: [["xpinstall.userActivation.required", false]],
+  });
+});
+
+// This tests if addon installation is blocked when requested in fullscreen
+add_task(async function testFullscreenBlockAddonInstallPrompt() {
+  // Open example.com
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, TESTROOT);
+
+  // Enter and wait for fullscreen
+  await changeFullscreen(gBrowser.selectedBrowser, true);
+  await TestUtils.waitForCondition(
+    () => window.fullScreen,
+    "Waiting for window to enter fullscreen"
+  );
+
+  // Trigger addon installation and expect it to be blocked
+  let addonEventPromise = TestUtils.topicObserved(
+    "addon-install-fullscreen-blocked"
+  );
+  await triggerInstall(gBrowser.selectedBrowser, "amosigned.xpi");
+  await addonEventPromise;
+
+  // Test if addon installation prompt has been blocked
+  let panelOpened;
+  try {
+    panelOpened = await TestUtils.waitForCondition(
+      () => PopupNotifications.isPanelOpen,
+      100,
+      10
+    );
+  } catch (ex) {
+    panelOpened = false;
+  }
+  is(panelOpened, false, "Addon installation prompt not opened");
+
+  window.fullScreen = false;
+  await BrowserTestUtils.waitForEvent(window, "fullscreenchange");
+  await BrowserTestUtils.removeTab(gBrowser.selectedTab);
+});
+
+// This tests if the addon install prompt is closed when entering fullscreen
+add_task(async function testFullscreenCloseAddonInstallPrompt() {
+  // Open example.com
+  await BrowserTestUtils.openNewForegroundTab(gBrowser, "http://example.com");
+
+  // Trigger addon installation
+  let addonEventPromise = TestUtils.topicObserved(
+    "webextension-permission-prompt"
+  );
+  await SpecialPowers.spawn(
+    gBrowser.selectedBrowser,
+    [TESTROOT + "amosigned.xpi"],
+    xpi_url => {
+      this.content.location = xpi_url;
+    }
+  );
+  // Wait for addon install event
+  info("Wait for webextension-permission-prompt");
+  await addonEventPromise;
+
+  // Test if addon installation prompt is visible
+  await TestUtils.waitForCondition(
+    () => PopupNotifications.isPanelOpen,
+    "Waiting for addon installation prompt to open"
+  );
+  Assert.ok(
+    PopupNotifications.getNotification(
+      "addon-webext-permissions",
+      gBrowser.selectedBrowser
+    ) != null,
+    "Opened notification is webextension permissions prompt"
+  );
+
+  // Switch to fullscreen and test for addon installation prompt close
+  await changeFullscreen(gBrowser.selectedBrowser, true);
+  await TestUtils.waitForCondition(
+    () => window.fullScreen,
+    "Waiting for window to enter fullscreen"
+  );
+  await TestUtils.waitForCondition(
+    () => !PopupNotifications.isPanelOpen,
+    "Waiting for addon installation prompt to close"
+  );
+
+  window.fullScreen = false;
+  await BrowserTestUtils.waitForEvent(window, "fullscreenchange");
+  await BrowserTestUtils.removeTab(gBrowser.selectedTab);
+});