Test repeated fullscreen request with different keyboard lock mode

Differential Revision: https://phabricator.services.mozilla.com/D294939

bugzilla-url: https://bugzilla.mozilla.org/show_bug.cgi?id=2032682
gecko-commit: 0cce7093c6575b5d72c83f9ce9e2e39f62140848
gecko-commit-git: 2b5d73b65b85467c137cdcafd83dc9f85099481f
gecko-reviewers: dom-core, edgar

Author: saschanaz

fullscreen/api/document-fullscreen-keyboard-lock-change.tentative.window.js

@@ -0,0 +1,30 @@
+// META: script=/resources/testdriver.js
+// META: script=/resources/testdriver-actions.js
+// META: script=/resources/testdriver-vendor.js
+// META: timeout=long
+
+promise_test(async t => {
+  t.add_cleanup(() => document.exitFullscreen().catch(() => {}));
+
+  let { promise: fullscreenEnterPromise, resolve } = Promise.withResolvers();
+  document.addEventListener("fullscreenchange", resolve, { once: true });
+
+  await test_driver.bless("requestFullscreen", () => document.body.requestFullscreen({ keyboardLock: "browser" }));
+  await fullscreenEnterPromise;
+  assert_equals(document.fullscreenElement, document.body, "fullscreen should activate");
+
+  await test_driver.send_keys(document.body, '\uE00C');
+  await new Promise(r => t.step_timeout(r, 2000));
+  assert_equals(document.fullscreenElement, document.body, "fullscreen should stay");
+
+  document.onfullscreenchange = t.unreached_func("No extra fullscreen change is expected by option change");
+  await test_driver.bless("requestFullscreen", () => document.body.requestFullscreen());
+  await new Promise(requestAnimationFrame);
+  document.onfullscreenchange = null;
+
+  await test_driver.send_keys(document.body, '\uE00C');
+  await new Promise(r => t.step_timeout(r, 2000));
+  assert_equals(document.fullscreenElement, null, "fullscreen should deactivate");
+}, `Requesting fullscreen again without keyboard lock should disable it`);
+
+// TODO(krosylight): we should be able to test the reverse way, but there's no good way to do so.

fullscreen/api/document-fullscreen-keyboard-lock-escape.tentative.window.js

@@ -3,7 +3,6 @@
 // META: script=/resources/testdriver-vendor.js
 // META: timeout=long
 
-
 async function holdEscapeKey() {
   // Press Escape for 5 seconds
   // Holding the key makes it repeat, so do the same here
@@ -27,6 +26,8 @@ for (const preventDefault of [true, false]) {
   const withEv = preventDefault ? "with" : "without";
 
   promise_test(async t => {
+    t.add_cleanup(() => document.exitFullscreen().catch(() => {}));
+
     const signal = t.get_signal();
     await test_driver.bless("requestFullscreen", () => document.body.requestFullscreen({ keyboardLock: "browser" }));
     assert_equals(document.fullscreenElement, document.body, "fullscreen should activate");
@@ -44,6 +45,8 @@ for (const preventDefault of [true, false]) {
   }, `Holding Escape ${withEv} event.preventDefault() should cause fullscreen exit`);
 
   promise_test(async t => {
+    t.add_cleanup(() => document.exitFullscreen().catch(() => {}));
+
     const signal = t.get_signal();
     await test_driver.bless("requestFullscreen", () => document.body.requestFullscreen({ keyboardLock: "browser" }));
     assert_equals(document.fullscreenElement, document.body, "fullscreen should activate");
@@ -54,6 +57,5 @@ for (const preventDefault of [true, false]) {
     await test_driver.send_keys(document.body, '\uE00C');
     await new Promise(r => t.step_timeout(r, 2000));
     assert_equals(document.fullscreenElement, document.body, "fullscreen should stay");
-    await document.exitFullscreen();
   }, `Tapping Escape ${withEv} event.preventDefault() should not cause fullscreen exit`);
 }