Fix toolbar keyboard accessibility on Views (alternative impl).

chrome/browser/ui/views/toolbar_view_browsertest.cc

+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/ui/views/toolbar_view.h"
+
+#include "chrome/app/chrome_command_ids.h"
+#include "chrome/browser/ui/browser.h"
+#include "chrome/browser/ui/browser_window.h"
+#include "chrome/browser/ui/browser_command_controller.h"
+#include "chrome/browser/ui/view_ids.h"
+#include "chrome/browser/ui/views/frame/browser_view.h"
+#include "chrome/test/base/in_process_browser_test.h"
+#include "ui/views/focus/focus_manager.h"
+#include "ui/views/view.h"
+#include "ui/views/widget/widget.h"
+
+namespace {
+
+class ToolbarViewTest : public InProcessBrowserTest {
+ public:
+  ToolbarViewTest() {}
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(ToolbarViewTest);
+};
+
+IN_PROC_BROWSER_TEST_F(ToolbarViewTest, ToolbarCycleFocus) {
+  gfx::NativeWindow window = browser()->window()->GetNativeWindow();
+  views::Widget* widget = views::Widget::GetWidgetForNativeWindow(window);
+  views::FocusManager* focus_manager = widget->GetFocusManager();
+  CommandUpdater* updater = browser()->command_controller()->command_updater();
+
+  // Send focus to the toolbar as if the user pressed Alt+Shift+T.
+  updater->ExecuteCommand(IDC_FOCUS_TOOLBAR);
+
+  views::View* first_view = focus_manager->GetFocusedView();
+  std::vector<int> ids;
+
+  // Press Tab to cycle through all of the controls in the toolbar until
+  // we end up back where we started.
+  bool found_reload = false;
+  bool found_location_bar = false;
+  bool found_app_menu = false;
+  const views::View* view = NULL;
+  while (view != first_view) {
+    focus_manager->AdvanceFocus(false);
+    view = focus_manager->GetFocusedView();
+    ids.push_back(view->id());
+    if (view->id() == VIEW_ID_RELOAD_BUTTON)
+      found_reload = true;
+    if (view->id() == VIEW_ID_APP_MENU)
+      found_app_menu = true;
+    if (view->id() == VIEW_ID_LOCATION_BAR || view->id() == VIEW_ID_OMNIBOX)
+      found_location_bar = true;
+    if (ids.size() > 100)
+      GTEST_FAIL() << "Tabbed 100 times, still haven't cycled back!";
+  }
+
+  // Make sure we found a few key items.
+  ASSERT_TRUE(found_reload);
+  ASSERT_TRUE(found_app_menu);
+  ASSERT_TRUE(found_location_bar);
+
+  // Now press Shift-Tab to cycle backwards.
+  std::vector<int> reverse_ids;
+  view = NULL;
+  while (view != first_view) {
+    focus_manager->AdvanceFocus(true);
+    view = focus_manager->GetFocusedView();
+    reverse_ids.push_back(view->id());
+    if (reverse_ids.size() > 100)
+      GTEST_FAIL() << "Tabbed 100 times, still haven't cycled back!";
+  }
+
+  // Assert that the views were focused in exactly the reverse order.
+  // The sequences should be the same length, and the last element will
+  // be the same, and the others are reverse.
+  ASSERT_EQ(ids.size(), reverse_ids.size());
+  size_t count = ids.size();
+  for (size_t i = 0; i < count - 1; i++)
+    EXPECT_EQ(ids[i], reverse_ids[count - 2 - i]);
+}
+
+}  // namespace