1 files changed, 68 insertions, 0 deletions
diff --git a/browser/components/extensions/test/browser/browser_ext_browserAction_keyclick.js b/browser/components/extensions/test/browser/browser_ext_browserAction_keyclick.js
new file mode 100644
index 0000000000..1cf5dbb8b3
--- /dev/null
+++ b/browser/components/extensions/test/browser/browser_ext_browserAction_keyclick.js
@@ -0,0 +1,68 @@
+/* -*- Mode: indent-tabs-mode: nil; js-indent-level: 2 -*- */
+/* vim: set sts=2 sw=2 et tw=80: */
+"use strict";
+
+// Like focusButtonAndPressKey, but leaves time between keydown and keyup
+// rather than dispatching both synchronously. This allows time for the
+// element's `open` property to go back to being `false` if forced to true
+// synchronously in response to keydown.
+async function focusButtonAndPressKeyWithDelay(key, elem, modifiers) {
+  let focused = BrowserTestUtils.waitForEvent(elem, "focus", true);
+  elem.setAttribute("tabindex", "-1");
+  elem.focus();
+  elem.removeAttribute("tabindex");
+  await focused;
+
+  EventUtils.synthesizeKey(key, { type: "keydown", modifiers });
+  await new Promise(executeSoon);
+  EventUtils.synthesizeKey(key, { type: "keyup", modifiers });
+  let blurred = BrowserTestUtils.waitForEvent(elem, "blur", true);
+  elem.blur();
+  await blurred;
+}
+
+// This test verifies that pressing enter while a page action is focused
+// triggers the action once and only once.
+add_task(async function testKeyBrowserAction() {
+  let extension = ExtensionTestUtils.loadExtension({
+    manifest: {
+      browser_action: {
+        default_area: "navbar",
+      },
+    },
+
+    async background() {
+      let counter = 0;
+
+      browser.browserAction.onClicked.addListener(() => {
+        counter++;
+      });
+
+      browser.test.onMessage.addListener(async msg => {
+        browser.test.assertEq(
+          "checkCounter",
+          msg,
+          "expected check counter message"
+        );
+        browser.test.sendMessage("counter", counter);
+      });
+
+      browser.test.sendMessage("ready");
+    },
+  });
+
+  await extension.startup();
+  await extension.awaitMessage("ready");
+
+  let elem = getBrowserActionWidget(extension).forWindow(window).node;
+
+  await promiseAnimationFrame(window);
+  await showBrowserAction(extension, window);
+  await focusButtonAndPressKeyWithDelay(" ", elem.firstElementChild, {});
+
+  extension.sendMessage("checkCounter");
+  let counter = await extension.awaitMessage("counter");
+  is(counter, 1, "Key only triggered button once");
+
+  await extension.unload();
+});