1 files changed, 170 insertions, 0 deletions
diff --git a/dom/html/test/browser_fullscreen-api-keys.js b/dom/html/test/browser_fullscreen-api-keys.js
new file mode 100644
index 000000000..92358efee
--- /dev/null
+++ b/dom/html/test/browser_fullscreen-api-keys.js
@@ -0,0 +1,170 @@
+"use strict";
+
+/** Test for Bug 545812 **/
+
+// List of key codes which should exit full-screen mode.
+const kKeyList = [
+  { code: "VK_ESCAPE", suppressed: true},
+  { code: "VK_F11",    suppressed: false},
+];
+
+function frameScript() {
+  let doc = content.document;
+  addMessageListener("Test:RequestFullscreen", () => {
+    doc.body.requestFullscreen();
+  });
+  addMessageListener("Test:DispatchUntrustedKeyEvents", msg => {
+    var evt = new content.CustomEvent("Test:DispatchKeyEvents", {
+      detail: { code: msg.data }
+    });
+    content.dispatchEvent(evt);
+  });
+
+  doc.addEventListener("fullscreenchange", () => {
+    sendAsyncMessage("Test:FullscreenChanged", !!doc.fullscreenElement);
+  });
+
+  function keyHandler(evt) {
+    sendAsyncMessage("Test:KeyReceived", {
+      type: evt.type,
+      keyCode: evt.keyCode
+    });
+  }
+  doc.addEventListener("keydown", keyHandler, true);
+  doc.addEventListener("keyup", keyHandler, true);
+  doc.addEventListener("keypress", keyHandler, true);
+
+  function waitUntilActive() {
+    if (doc.docShell.isActive && doc.hasFocus()) {
+      sendAsyncMessage("Test:Activated");
+    } else {
+      setTimeout(waitUntilActive, 10);
+    }
+  }
+  waitUntilActive();
+}
+
+var gMessageManager;
+
+function listenOneMessage(aMsg, aListener) {
+  function listener({ data }) {
+    gMessageManager.removeMessageListener(aMsg, listener);
+    aListener(data);
+  }
+  gMessageManager.addMessageListener(aMsg, listener);
+}
+
+function promiseOneMessage(aMsg) {
+  return new Promise(resolve => listenOneMessage(aMsg, resolve));
+}
+
+function captureUnexpectedFullscreenChange() {
+  ok(false, "Caught an unexpected fullscreen change");
+}
+
+function* temporaryRemoveUnexpectedFullscreenChangeCapture(callback) {
+  gMessageManager.removeMessageListener(
+    "Test:FullscreenChanged", captureUnexpectedFullscreenChange);
+  yield* callback();
+  gMessageManager.addMessageListener(
+    "Test:FullscreenChanged", captureUnexpectedFullscreenChange);
+}
+
+function captureUnexpectedKeyEvent(type) {
+  ok(false, `Caught an unexpected ${type} event`);
+}
+
+function* temporaryRemoveUnexpectedKeyEventCapture(callback) {
+  gMessageManager.removeMessageListener(
+    "Test:KeyReceived", captureUnexpectedKeyEvent);
+  yield* callback();
+  gMessageManager.addMessageListener(
+    "Test:KeyReceived", captureUnexpectedKeyEvent);
+}
+
+function receiveExpectedKeyEvents(keyCode) {
+  return new Promise(resolve => {
+    let events = ["keydown", "keypress", "keyup"];
+    function listener({ data }) {
+      let expected = events.shift();
+      is(data.type, expected, `Should receive a ${expected} event`);
+      is(data.keyCode, keyCode,
+         `Should receive the event with key code ${keyCode}`);
+      if (!events.length) {
+        gMessageManager.removeMessageListener("Test:KeyReceived", listener);
+        resolve();
+      }
+    }
+    gMessageManager.addMessageListener("Test:KeyReceived", listener);
+  });
+}
+
+const kPage = "http://example.org/browser/" +
+              "dom/html/test/file_fullscreen-api-keys.html";
+
+add_task(function* () {
+  yield pushPrefs(
+    ["full-screen-api.transition-duration.enter", "0 0"],
+    ["full-screen-api.transition-duration.leave", "0 0"]);
+
+  let tab = gBrowser.addTab(kPage);
+  let browser = tab.linkedBrowser;
+  gBrowser.selectedTab = tab;
+  registerCleanupFunction(() => gBrowser.removeTab(tab));
+  yield waitForDocLoadComplete();
+
+  gMessageManager = browser.messageManager;
+  gMessageManager.loadFrameScript(
+    "data:,(" + frameScript.toString() + ")();", false);
+
+  // Wait for the document being actived, so that
+  // fullscreen request won't be denied.
+  yield promiseOneMessage("Test:Activated");
+
+  // Register listener to capture unexpected events
+  gMessageManager.addMessageListener(
+    "Test:FullscreenChanged", captureUnexpectedFullscreenChange);
+  gMessageManager.addMessageListener(
+    "Test:KeyReceived", captureUnexpectedKeyEvent);
+  registerCleanupFunction(() => {
+    gMessageManager.removeMessageListener(
+      "Test:FullscreenChanged", captureUnexpectedFullscreenChange);
+    gMessageManager.removeMessageListener(
+      "Test:KeyReceived", captureUnexpectedKeyEvent);
+  });
+
+  for (let {code, suppressed} of kKeyList) {
+    var keyCode = KeyEvent["DOM_" + code];
+    info(`Test keycode ${code} (${keyCode})`);
+
+    info("Enter fullscreen");
+    yield* temporaryRemoveUnexpectedFullscreenChangeCapture(function* () {
+      gMessageManager.sendAsyncMessage("Test:RequestFullscreen");
+      let state = yield promiseOneMessage("Test:FullscreenChanged");
+      ok(state, "The content should have entered fullscreen");
+      ok(document.fullscreenElement,
+         "The chrome should also be in fullscreen");
+    });
+
+    info("Dispatch untrusted key events from content");
+    yield* temporaryRemoveUnexpectedKeyEventCapture(function* () {
+      let promiseExpectedKeyEvents = receiveExpectedKeyEvents(keyCode);
+      gMessageManager.sendAsyncMessage("Test:DispatchUntrustedKeyEvents", code);
+      yield promiseExpectedKeyEvents;
+    });
+
+    info("Send trusted key events");
+    yield* temporaryRemoveUnexpectedFullscreenChangeCapture(function* () {
+      yield* temporaryRemoveUnexpectedKeyEventCapture(function* () {
+        let promiseExpectedKeyEvents = suppressed ?
+          Promise.resolve() : receiveExpectedKeyEvents(keyCode);
+        EventUtils.synthesizeKey(code, {});
+        yield promiseExpectedKeyEvents;
+        let state = yield promiseOneMessage("Test:FullscreenChanged");
+        ok(!state, "The content should have exited fullscreen");
+        ok(!document.fullscreenElement,
+           "The chrome should also have exited fullscreen");
+      });
+    });
+  }
+});