Add initial tests for keyboard access (tabbing in some dialogs)....

chrome/browser/views/browser_keyboard_accessibility_test_win.cc

Index: chrome/browser/views/browser_keyboard_accessibility_test_win.cc
===================================================================
--- chrome/browser/views/browser_keyboard_accessibility_test_win.cc	(revision 0)
+++ chrome/browser/views/browser_keyboard_accessibility_test_win.cc	(revision 0)
@@ -0,0 +1,175 @@
+// Copyright (c) 2010 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 "base/keyboard_codes.h"
+#include "chrome/browser/automation/ui_controls.h"
+#include "chrome/browser/views/chrome_views_delegate.h"
+#include "chrome/browser/views/frame/browser_view.h"
+#include "chrome/test/in_process_browser_test.h"
+#include "chrome/test/ui_test_utils.h"
+#include "views/view.h"
+#include "views/accessibility/view_accessibility.h"
+#include "views/widget/widget.h"
+#include "views/window/window.h"
+
+namespace {
+
+class BrowserKeyboardAccessibility : public InProcessBrowserTest,
+                                     public ChromeViewsDelegate {
+ public:
+  BrowserKeyboardAccessibility()
+      : is_waiting_(false),
+        current_view_(NULL) {
+    // Set ourselves as the currently active ViewsDelegate.
+    ViewsDelegate::views_delegate = this;
+  }
+
+  ~BrowserKeyboardAccessibility() {}
+
+  // Overidden from ChromeViewsDelegate.
+  // Save the last notification sent by views::View::NotifyAccessibilityEvent.
+  virtual void NotifyAccessibilityEvent(
+      views::View* view, AccessibilityTypes::Event event_type) {
+    current_view_  = view;
+    current_event_type_ = event_type;
+
+    // Are we within a message loop waiting for a particular event?
+    if (is_waiting_) {
+      is_waiting_ = false;
+      MessageLoop::current()->Quit();
+    }
+  }
+
+  // Helper that performs tabbing until it cycles back to the original focus.
+  void TabCyclerForwardAndBack(gfx::NativeWindow hwnd);
+  void TabCycler(gfx::NativeWindow hwnd, bool forward_tab);
+
+  views::View* current_view() const { return current_view_; }
+
+  gfx::NativeWindow current_view_native_window() const {
+    return current_view()->GetWidget()->GetNativeView();
+  }
+
+  AccessibilityTypes::Event current_event() const {
+    return current_event_type_;
+  }
+
+  void set_waiting(bool value) { is_waiting_ = value; }
+
+ private:
+  // Are we waiting for an event?
+  bool is_waiting_;
+
+  // View of interest (i.e. for testing or one we are waiting to gain focus).
+  views::View* current_view_;
+
+  // Event type of interest.
+  AccessibilityTypes::Event current_event_type_;
+};
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInAboutChromeDialog) {
+  views::Window* about_chrome_window =
+      BrowserView::GetBrowserViewForNativeWindow(
+          browser()->window()->GetNativeHandle())->ShowAboutChromeDialog();
+
+  TabCyclerForwardAndBack(about_chrome_window->GetNativeWindow());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility,
+                       TabInClearBrowsingDataDialog) {
+  browser()->OpenClearBrowsingDataDialog();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility,
+                       TabInImportSettingsDialog) {
+  browser()->OpenImportSettingsDialog();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInKeywordEditor) {
+  browser()->OpenKeywordEditor();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInOptionsDialog) {
+  browser()->OpenOptionsDialog();
+
+  // Tab through each of the three tabs.
+  for (int i = 0; i < 3; ++i) {
+    TabCyclerForwardAndBack(current_view_native_window());
+    ui_controls::SendKeyPressNotifyWhenDone(current_view_native_window(),
+                                            base::VKEY_TAB,
+                                            true, false, false, false,
+                                            new MessageLoop::QuitTask());
+    set_waiting(true);
+    ui_test_utils::RunMessageLoop();
+  }
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInPasswordManager) {
+  browser()->OpenPasswordManager();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+// TODO(dtseng): http://www.crbug.com/50402
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility,
+                       FAILS_TabInSyncMyBookmarksDialog) {
+  browser()->OpenSyncMyBookmarksDialog();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInTaskManager) {
+  browser()->OpenTaskManager();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInToolbar) {
+  gfx::NativeWindow native_window = browser()->window()->GetNativeHandle();
+  ui_controls::SendKeyPressNotifyWhenDone(native_window,
+                                          base::VKEY_T,
+                                          false, true, true, false,
+                                          new MessageLoop::QuitTask());
+  set_waiting(true);
+  ui_test_utils::RunMessageLoop();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+IN_PROC_BROWSER_TEST_F(BrowserKeyboardAccessibility, TabInUpdateChromeDialog) {
+  browser()->OpenUpdateChromeDialog();
+  TabCyclerForwardAndBack(current_view_native_window());
+}
+
+void BrowserKeyboardAccessibility::TabCyclerForwardAndBack(
+    gfx::NativeWindow hwnd) {
+  TabCycler(hwnd, true);
+  TabCycler(hwnd, false);
+}
+
+void BrowserKeyboardAccessibility::TabCycler(gfx::NativeWindow hwnd,
+                                             bool forward_tab) {
+  // Wait for a focus event on the provided native window.
+  while (current_event() != AccessibilityTypes::EVENT_FOCUS ||
+         current_view_native_window() != hwnd) {
+    set_waiting(true);
+    ui_test_utils::RunMessageLoop();
+  }
+
+  views::View* first_focused_item = current_view();
+
+  ASSERT_TRUE(first_focused_item != NULL);
+
+  views::View* next_focused_item = first_focused_item;
+
+  // Keep tabbing until we reach the originally focused view.
+  do {
+    ui_controls::SendKeyPressNotifyWhenDone(hwnd, base::VKEY_TAB,
+        false, !forward_tab, false, false, new MessageLoop::QuitTask());
+    set_waiting(true);
+    ui_test_utils::RunMessageLoop();
+    next_focused_item = current_view();
+  } while (first_focused_item != next_focused_item);
+}
+
+}  // namespace