Enable FocusManager tests for Aura.

ui/views/focus/focus_traversal_unittest.cc

+// Copyright (c) 2011 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 "ui/views/focus/focus_manager.h"
+
+#include "base/string_number_conversions.h"
+#include "base/utf_string_conversions.h"
+#include "ui/base/models/combobox_model.h"
+#include "ui/views/focus/focus_manager_test.h"
+#include "ui/views/widget/root_view.h"
+#include "ui/views/widget/widget.h"
+#include "views/controls/button/checkbox.h"
+#include "views/controls/button/radio_button.h"
+#include "views/controls/button/text_button.h"
+#include "views/controls/combobox/combobox.h"
+#include "views/controls/label.h"
+#include "views/controls/link.h"
+#include "views/controls/native/native_view_host.h"
+#include "views/controls/scroll_view.h"
+#include "views/controls/textfield/textfield.h"
+
+#if !defined(USE_AURA)
+#include "views/controls/tabbed_pane/tabbed_pane.h"
+#endif
+
+namespace views {
+
+namespace {
+
+int count = 1;
+
+const int kTopCheckBoxID = count++;  // 1
+const int kLeftContainerID = count++;
+const int kAppleLabelID = count++;
+const int kAppleTextfieldID = count++;
+const int kOrangeLabelID = count++;  // 5
+const int kOrangeTextfieldID = count++;
+const int kBananaLabelID = count++;
+const int kBananaTextfieldID = count++;
+const int kKiwiLabelID = count++;
+const int kKiwiTextfieldID = count++;  // 10
+const int kFruitButtonID = count++;
+const int kFruitCheckBoxID = count++;
+const int kComboboxID = count++;
+
+const int kRightContainerID = count++;
+const int kAsparagusButtonID = count++;  // 15
+const int kBroccoliButtonID = count++;
+const int kCauliflowerButtonID = count++;
+
+const int kInnerContainerID = count++;
+const int kScrollViewID = count++;
+const int kRosettaLinkID = count++;  // 20
+const int kStupeurEtTremblementLinkID = count++;
+const int kDinerGameLinkID = count++;
+const int kRidiculeLinkID = count++;
+const int kClosetLinkID = count++;
+const int kVisitingLinkID = count++;  // 25
+const int kAmelieLinkID = count++;
+const int kJoyeuxNoelLinkID = count++;
+const int kCampingLinkID = count++;
+const int kBriceDeNiceLinkID = count++;
+const int kTaxiLinkID = count++;  // 30
+const int kAsterixLinkID = count++;
+
+const int kOKButtonID = count++;
+const int kCancelButtonID = count++;
+const int kHelpButtonID = count++;
+
+#if !defined(USE_AURA)
+const int kStyleContainerID = count++;  // 35
+const int kBoldCheckBoxID = count++;
+const int kItalicCheckBoxID = count++;
+const int kUnderlinedCheckBoxID = count++;
+const int kStyleHelpLinkID = count++;
+const int kStyleTextEditID = count++;  // 40
+#endif
+
+const int kSearchContainerID = count++;
+const int kSearchTextfieldID = count++;
+const int kSearchButtonID = count++;
+const int kHelpLinkID = count++;
+
+const int kThumbnailContainerID = count++;  // 45
+const int kThumbnailStarID = count++;
+const int kThumbnailSuperStarID = count++;
+
+class DummyComboboxModel : public ui::ComboboxModel {
+ public:
+  virtual int GetItemCount() { return 10; }
+
+  virtual string16 GetItemAt(int index) {
+    return ASCIIToUTF16("Item ") + base::IntToString16(index);
+  }
+};
+
+// A View that can act as a pane.
+class PaneView : public View, public FocusTraversable {
+ public:
+  PaneView() : focus_search_(NULL) {}
+
+  // If this method is called, this view will use GetPaneFocusTraversable to
+  // have this provided FocusSearch used instead of the default one, allowing
+  // you to trap focus within the pane.
+  void EnablePaneFocus(FocusSearch* focus_search) {
+    focus_search_ = focus_search;
+  }
+
+  // Overridden from views::View:
+  virtual FocusTraversable* GetPaneFocusTraversable() {
+    if (focus_search_)
+      return this;
+    else
+      return NULL;
+  }
+
+  // Overridden from views::FocusTraversable:
+  virtual views::FocusSearch* GetFocusSearch() {
+    return focus_search_;
+  }
+  virtual FocusTraversable* GetFocusTraversableParent() {
+    return NULL;
+  }
+  virtual View* GetFocusTraversableParentView() {
+    return NULL;
+  }
+
+ private:
+  FocusSearch* focus_search_;
+};
+
+// BorderView is a view containing a native window with its own view hierarchy.
+// It is interesting to test focus traversal from a view hierarchy to an inner
+// view hierarchy.
+class BorderView : public NativeViewHost {
+ public:
+  explicit BorderView(View* child) : child_(child), widget_(NULL) {
+    DCHECK(child);
+    set_focusable(false);
+  }
+
+  virtual ~BorderView() {}
+
+  virtual internal::RootView* GetContentsRootView() {
+    return static_cast<internal::RootView*>(widget_->GetRootView());
+  }
+
+  virtual FocusTraversable* GetFocusTraversable() {
+    return static_cast<internal::RootView*>(widget_->GetRootView());
+  }
+
+  virtual void ViewHierarchyChanged(bool is_add, View *parent, View *child) {
+    NativeViewHost::ViewHierarchyChanged(is_add, parent, child);
+
+    if (child == this && is_add) {
+      if (!widget_) {
+        widget_ = new Widget;
+        Widget::InitParams params(Widget::InitParams::TYPE_CONTROL);
+#if defined(OS_WIN)
+        params.parent = parent->GetWidget()->GetNativeView();
+#elif defined(TOOLKIT_USES_GTK)
+        params.parent = native_view();
+#else
+        NOTREACHED();
+#endif
+        widget_->Init(params);
+        widget_->SetFocusTraversableParentView(this);
+        widget_->SetContentsView(child_);
+      }
+
+      // We have been added to a view hierarchy, attach the native view.
+      Attach(widget_->GetNativeView());
+      // Also update the FocusTraversable parent so the focus traversal works.
+      static_cast<internal::RootView*>(widget_->GetRootView())->
+          SetFocusTraversableParent(GetWidget()->GetFocusTraversable());
+    }
+  }
+
+ private:
+  View* child_;
+  Widget* widget_;
+
+  DISALLOW_COPY_AND_ASSIGN(BorderView);
+};
+
+}  // namespace
+
+class FocusTraversalTest : public FocusManagerTest {
+ public:
+  ~FocusTraversalTest();
+
+  virtual void InitContentView() OVERRIDE;
+
+ protected:
+  FocusTraversalTest();
+
+  View* FindViewByID(int id) {
+    View* view = GetContentsView()->GetViewByID(id);
+    if (view)
+      return view;
+#if !defined(USE_AURA)
+    if (style_tab_)
+      view = style_tab_->GetSelectedTab()->GetViewByID(id);
+#endif
+    if (view)
+      return view;
+    view = search_border_view_->GetContentsRootView()->GetViewByID(id);
+    if (view)
+      return view;
+    return NULL;
+  }
+
+ protected:
+#if !defined(USE_AURA)
+  TabbedPane* style_tab_;
+#endif
+  BorderView* search_border_view_;
+  DummyComboboxModel combobox_model_;
+  PaneView* left_container_;
+  PaneView* right_container_;
+
+  DISALLOW_COPY_AND_ASSIGN(FocusTraversalTest);
+};
+
+FocusTraversalTest::FocusTraversalTest()
+    :
+#if !defined(USE_AURA)
+      style_tab_(NULL),
+#endif
+      search_border_view_(NULL) {
+}
+
+FocusTraversalTest::~FocusTraversalTest() {
+}
+
+void FocusTraversalTest::InitContentView() {
+  // Create a complicated view hierarchy with lots of control types for
+  // use by all of the focus traversal tests.
+  //
+  // Class name, ID, and asterisk next to focusable views:
+  //
+  // View
+  //   Checkbox            * kTopCheckBoxID
+  //   PaneView              kLeftContainerID
+  //     Label               kAppleLabelID
+  //     Textfield         * kAppleTextfieldID
+  //     Label               kOrangeLabelID
+  //     Textfield         * kOrangeTextfieldID
+  //     Label               kBananaLabelID
+  //     Textfield         * kBananaTextfieldID
+  //     Label               kKiwiLabelID
+  //     Textfield         * kKiwiTextfieldID
+  //     NativeButton      * kFruitButtonID
+  //     Checkbox          * kFruitCheckBoxID
+  //     Combobox          * kComboboxID
+  //   PaneView              kRightContainerID
+  //     RadioButton       * kAsparagusButtonID
+  //     RadioButton       * kBroccoliButtonID
+  //     RadioButton       * kCauliflowerButtonID
+  //     View                kInnerContainerID
+  //       ScrollView        kScrollViewID
+  //         View
+  //           Link        * kRosettaLinkID
+  //           Link        * kStupeurEtTremblementLinkID
+  //           Link        * kDinerGameLinkID
+  //           Link        * kRidiculeLinkID
+  //           Link        * kClosetLinkID
+  //           Link        * kVisitingLinkID
+  //           Link        * kAmelieLinkID
+  //           Link        * kJoyeuxNoelLinkID
+  //           Link        * kCampingLinkID
+  //           Link        * kBriceDeNiceLinkID
+  //           Link        * kTaxiLinkID
+  //           Link        * kAsterixLinkID
+  //   NativeButton        * kOKButtonID
+  //   NativeButton        * kCancelButtonID
+  //   NativeButton        * kHelpButtonID
+  // #if !defined(USE_AURA)
+  //   TabbedPane          * kStyleContainerID
+  //     View
+  //       Checkbox        * kBoldCheckBoxID
+  //       Checkbox        * kItalicCheckBoxID
+  //       Checkbox        * kUnderlinedCheckBoxID
+  //       Link            * kStyleHelpLinkID
+  //       Textfield       * kStyleTextEditID
+  //     Other
+  // #endif
+  //   BorderView            kSearchContainerID
+  //     View
+  //       Textfield       * kSearchTextfieldID
+  //       NativeButton    * kSearchButtonID
+  //       Link            * kHelpLinkID
+  //   View                * kThumbnailContainerID
+  //     NativeButton      * kThumbnailStarID
+  //     NativeButton      * kThumbnailSuperStarID
+
+  GetContentsView()->set_background(
+      Background::CreateSolidBackground(SK_ColorWHITE));
+
+  Checkbox* cb = new Checkbox(ASCIIToUTF16("This is a checkbox"));
+  GetContentsView()->AddChildView(cb);
+  // In this fast paced world, who really has time for non hard-coded layout?
+  cb->SetBounds(10, 10, 200, 20);
+  cb->set_id(kTopCheckBoxID);
+
+  left_container_ = new PaneView();
+  left_container_->set_border(Border::CreateSolidBorder(1, SK_ColorBLACK));
+  left_container_->set_background(
+      Background::CreateSolidBackground(240, 240, 240));
+  left_container_->set_id(kLeftContainerID);
+  GetContentsView()->AddChildView(left_container_);
+  left_container_->SetBounds(10, 35, 250, 200);
+
+  int label_x = 5;
+  int label_width = 50;
+  int label_height = 15;
+  int text_field_width = 150;
+  int y = 10;
+  int gap_between_labels = 10;
+
+  Label* label = new Label(ASCIIToUTF16("Apple:"));
+  label->set_id(kAppleLabelID);
+  left_container_->AddChildView(label);
+  label->SetBounds(label_x, y, label_width, label_height);
+
+  Textfield* text_field = new Textfield();
+  text_field->set_id(kAppleTextfieldID);
+  left_container_->AddChildView(text_field);
+  text_field->SetBounds(label_x + label_width + 5, y,
+                        text_field_width, label_height);
+
+  y += label_height + gap_between_labels;
+
+  label = new Label(ASCIIToUTF16("Orange:"));
+  label->set_id(kOrangeLabelID);
+  left_container_->AddChildView(label);
+  label->SetBounds(label_x, y, label_width, label_height);
+
+  text_field = new Textfield();
+  text_field->set_id(kOrangeTextfieldID);
+  left_container_->AddChildView(text_field);
+  text_field->SetBounds(label_x + label_width + 5, y,
+                        text_field_width, label_height);
+
+  y += label_height + gap_between_labels;
+
+  label = new Label(ASCIIToUTF16("Banana:"));
+  label->set_id(kBananaLabelID);
+  left_container_->AddChildView(label);
+  label->SetBounds(label_x, y, label_width, label_height);
+
+  text_field = new Textfield();
+  text_field->set_id(kBananaTextfieldID);
+  left_container_->AddChildView(text_field);
+  text_field->SetBounds(label_x + label_width + 5, y,
+                        text_field_width, label_height);
+
+  y += label_height + gap_between_labels;
+
+  label = new Label(ASCIIToUTF16("Kiwi:"));
+  label->set_id(kKiwiLabelID);
+  left_container_->AddChildView(label);
+  label->SetBounds(label_x, y, label_width, label_height);
+
+  text_field = new Textfield();
+  text_field->set_id(kKiwiTextfieldID);
+  left_container_->AddChildView(text_field);
+  text_field->SetBounds(label_x + label_width + 5, y,
+                        text_field_width, label_height);
+
+  y += label_height + gap_between_labels;
+
+  NativeTextButton* button = new NativeTextButton(NULL,
+                                                  ASCIIToUTF16("Click me"));
+  button->SetBounds(label_x, y + 10, 80, 30);
+  button->set_id(kFruitButtonID);
+  left_container_->AddChildView(button);
+  y += 40;
+
+  cb =  new Checkbox(ASCIIToUTF16("This is another check box"));
+  cb->SetBounds(label_x + label_width + 5, y, 180, 20);
+  cb->set_id(kFruitCheckBoxID);
+  left_container_->AddChildView(cb);
+  y += 20;
+
+  Combobox* combobox =  new Combobox(&combobox_model_);
+  combobox->SetBounds(label_x + label_width + 5, y, 150, 30);
+  combobox->set_id(kComboboxID);
+  left_container_->AddChildView(combobox);
+
+  right_container_ = new PaneView();
+  right_container_->set_border(Border::CreateSolidBorder(1, SK_ColorBLACK));
+  right_container_->set_background(
+      Background::CreateSolidBackground(240, 240, 240));
+  right_container_->set_id(kRightContainerID);
+  GetContentsView()->AddChildView(right_container_);
+  right_container_->SetBounds(270, 35, 300, 200);
+
+  y = 10;
+  int radio_button_height = 18;
+  int gap_between_radio_buttons = 10;
+  RadioButton* radio_button = new RadioButton(ASCIIToUTF16("Asparagus"), 1);
+  radio_button->set_id(kAsparagusButtonID);
+  right_container_->AddChildView(radio_button);
+  radio_button->SetBounds(5, y, 70, radio_button_height);
+  radio_button->SetGroup(1);
+  y += radio_button_height + gap_between_radio_buttons;
+  radio_button = new RadioButton(ASCIIToUTF16("Broccoli"), 1);
+  radio_button->set_id(kBroccoliButtonID);
+  right_container_->AddChildView(radio_button);
+  radio_button->SetBounds(5, y, 70, radio_button_height);
+  radio_button->SetGroup(1);
+  RadioButton* radio_button_to_check = radio_button;
+  y += radio_button_height + gap_between_radio_buttons;
+  radio_button = new RadioButton(ASCIIToUTF16("Cauliflower"), 1);
+  radio_button->set_id(kCauliflowerButtonID);
+  right_container_->AddChildView(radio_button);
+  radio_button->SetBounds(5, y, 70, radio_button_height);
+  radio_button->SetGroup(1);
+  y += radio_button_height + gap_between_radio_buttons;
+
+  View* inner_container = new View();
+  inner_container->set_border(Border::CreateSolidBorder(1, SK_ColorBLACK));
+  inner_container->set_background(
+      Background::CreateSolidBackground(230, 230, 230));
+  inner_container->set_id(kInnerContainerID);
+  right_container_->AddChildView(inner_container);
+  inner_container->SetBounds(100, 10, 150, 180);
+
+  ScrollView* scroll_view = new ScrollView();
+  scroll_view->set_id(kScrollViewID);
+  inner_container->AddChildView(scroll_view);
+  scroll_view->SetBounds(1, 1, 148, 178);
+
+  View* scroll_content = new View();
+  scroll_content->SetBounds(0, 0, 200, 200);
+  scroll_content->set_background(
+      Background::CreateSolidBackground(200, 200, 200));
+  scroll_view->SetContents(scroll_content);
+
+  static const char* const kTitles[] = {
+      "Rosetta", "Stupeur et tremblement", "The diner game",
+      "Ridicule", "Le placard", "Les Visiteurs", "Amelie",
+      "Joyeux Noel", "Camping", "Brice de Nice",
+      "Taxi", "Asterix"
+  };
+
+  static const int kIDs[] = {
+      kRosettaLinkID, kStupeurEtTremblementLinkID, kDinerGameLinkID,
+      kRidiculeLinkID, kClosetLinkID, kVisitingLinkID, kAmelieLinkID,
+      kJoyeuxNoelLinkID, kCampingLinkID, kBriceDeNiceLinkID,
+      kTaxiLinkID, kAsterixLinkID
+  };
+
+  DCHECK(arraysize(kTitles) == arraysize(kIDs));
+
+  y = 5;
+  for (size_t i = 0; i < arraysize(kTitles); ++i) {
+    Link* link = new Link(ASCIIToUTF16(kTitles[i]));
+    link->SetHorizontalAlignment(Label::ALIGN_LEFT);
+    link->set_id(kIDs[i]);
+    scroll_content->AddChildView(link);
+    link->SetBounds(5, y, 300, 15);
+    y += 15;
+  }
+
+  y = 250;
+  int width = 60;
+  button = new NativeTextButton(NULL, ASCIIToUTF16("OK"));
+  button->set_id(kOKButtonID);
+  button->SetIsDefault(true);
+
+  GetContentsView()->AddChildView(button);
+  button->SetBounds(150, y, width, 30);
+
+  button = new NativeTextButton(NULL, ASCIIToUTF16("Cancel"));
+  button->set_id(kCancelButtonID);
+  GetContentsView()->AddChildView(button);
+  button->SetBounds(220, y, width, 30);
+
+  button = new NativeTextButton(NULL, ASCIIToUTF16("Help"));
+  button->set_id(kHelpButtonID);
+  GetContentsView()->AddChildView(button);
+  button->SetBounds(290, y, width, 30);
+
+  y += 40;
+
+  View* contents = NULL;
+  Link* link = NULL;
+
+#if !defined(USE_AURA)
+  // Left bottom box with style checkboxes.
+  contents = new View();
+  contents->set_background(Background::CreateSolidBackground(SK_ColorWHITE));
+  cb = new Checkbox(ASCIIToUTF16("Bold"));
+  contents->AddChildView(cb);
+  cb->SetBounds(10, 10, 50, 20);
+  cb->set_id(kBoldCheckBoxID);
+
+  cb = new Checkbox(ASCIIToUTF16("Italic"));
+  contents->AddChildView(cb);
+  cb->SetBounds(70, 10, 50, 20);
+  cb->set_id(kItalicCheckBoxID);
+
+  cb = new Checkbox(ASCIIToUTF16("Underlined"));
+  contents->AddChildView(cb);
+  cb->SetBounds(130, 10, 70, 20);
+  cb->set_id(kUnderlinedCheckBoxID);
+
+  link = new Link(ASCIIToUTF16("Help"));
+  contents->AddChildView(link);
+  link->SetBounds(10, 35, 70, 10);
+  link->set_id(kStyleHelpLinkID);
+
+  text_field = new Textfield();
+  contents->AddChildView(text_field);
+  text_field->SetBounds(10, 50, 100, 20);
+  text_field->set_id(kStyleTextEditID);
+
+  style_tab_ = new TabbedPane();
+  style_tab_->set_id(kStyleContainerID);
+  GetContentsView()->AddChildView(style_tab_);
+  style_tab_->SetBounds(10, y, 210, 100);
+  style_tab_->AddTab(ASCIIToUTF16("Style"), contents);
+  style_tab_->AddTab(ASCIIToUTF16("Other"), new View());
+#endif
+
+  // Right bottom box with search.
+  contents = new View();
+  contents->set_background(Background::CreateSolidBackground(SK_ColorWHITE));
+  text_field = new Textfield();
+  contents->AddChildView(text_field);
+  text_field->SetBounds(10, 10, 100, 20);
+  text_field->set_id(kSearchTextfieldID);
+
+  button = new NativeTextButton(NULL, ASCIIToUTF16("Search"));
+  contents->AddChildView(button);
+  button->SetBounds(112, 5, 60, 30);
+  button->set_id(kSearchButtonID);
+
+  link = new Link(ASCIIToUTF16("Help"));
+  link->SetHorizontalAlignment(Label::ALIGN_LEFT);
+  link->set_id(kHelpLinkID);
+  contents->AddChildView(link);
+  link->SetBounds(175, 10, 30, 20);
+
+  search_border_view_ = new BorderView(contents);
+  search_border_view_->set_id(kSearchContainerID);
+
+  GetContentsView()->AddChildView(search_border_view_);
+  search_border_view_->SetBounds(300, y, 240, 50);
+
+  y += 60;
+
+  contents = new View();
+  contents->set_focusable(true);
+  contents->set_background(Background::CreateSolidBackground(SK_ColorBLUE));
+  contents->set_id(kThumbnailContainerID);
+  button = new NativeTextButton(NULL, ASCIIToUTF16("Star"));
+  contents->AddChildView(button);
+  button->SetBounds(5, 5, 50, 30);
+  button->set_id(kThumbnailStarID);
+  button = new NativeTextButton(NULL, ASCIIToUTF16("SuperStar"));
+  contents->AddChildView(button);
+  button->SetBounds(60, 5, 100, 30);
+  button->set_id(kThumbnailSuperStarID);
+
+  GetContentsView()->AddChildView(contents);
+  contents->SetBounds(250, y, 200, 50);
+  // We can only call RadioButton::SetChecked() on the radio-button is part of
+  // the view hierarchy.
+  radio_button_to_check->SetChecked(true);
+}
+
+TEST_F(FocusTraversalTest, NormalTraversal) {
+  const int kTraversalIDs[] = { kTopCheckBoxID,  kAppleTextfieldID,
+      kOrangeTextfieldID, kBananaTextfieldID, kKiwiTextfieldID,
+      kFruitButtonID, kFruitCheckBoxID, kComboboxID, kBroccoliButtonID,
+      kRosettaLinkID, kStupeurEtTremblementLinkID,
+      kDinerGameLinkID, kRidiculeLinkID, kClosetLinkID, kVisitingLinkID,
+      kAmelieLinkID, kJoyeuxNoelLinkID, kCampingLinkID, kBriceDeNiceLinkID,
+      kTaxiLinkID, kAsterixLinkID, kOKButtonID, kCancelButtonID, kHelpButtonID,
+#if !defined(USE_AURA)
+      kStyleContainerID, kBoldCheckBoxID, kItalicCheckBoxID,
+      kUnderlinedCheckBoxID, kStyleHelpLinkID, kStyleTextEditID,
+#endif
+      kSearchTextfieldID, kSearchButtonID, kHelpLinkID,
+      kThumbnailContainerID, kThumbnailStarID, kThumbnailSuperStarID };
+
+  // Uncomment the following line if you want to test manually the UI of this
+  // test.
+  // MessageLoopForUI::current()->RunWithDispatcher(new AcceleratorHandler());
+
+  // Let's traverse the whole focus hierarchy (several times, to make sure it
+  // loops OK).
+  GetFocusManager()->ClearFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (size_t j = 0; j < arraysize(kTraversalIDs); j++) {
+      GetFocusManager()->AdvanceFocus(false);
+      View* focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kTraversalIDs[j], focused_view->id());
+    }
+  }
+
+  // Let's traverse in reverse order.
+  GetFocusManager()->ClearFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (int j = arraysize(kTraversalIDs) - 1; j >= 0; --j) {
+      GetFocusManager()->AdvanceFocus(true);
+      View* focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kTraversalIDs[j], focused_view->id());
+    }
+  }
+}
+
+TEST_F(FocusTraversalTest, TraversalWithNonEnabledViews) {
+  const int kDisabledIDs[] = {
+      kBananaTextfieldID, kFruitCheckBoxID, kComboboxID, kAsparagusButtonID,
+      kCauliflowerButtonID, kClosetLinkID, kVisitingLinkID, kBriceDeNiceLinkID,
+      kTaxiLinkID, kAsterixLinkID, kHelpButtonID,
+#if !defined(USE_AURA)
+      kBoldCheckBoxID,
+#endif
+      kSearchTextfieldID, kHelpLinkID };
+
+  const int kTraversalIDs[] = { kTopCheckBoxID,  kAppleTextfieldID,
+      kOrangeTextfieldID, kKiwiTextfieldID, kFruitButtonID, kBroccoliButtonID,
+      kRosettaLinkID, kStupeurEtTremblementLinkID, kDinerGameLinkID,
+      kRidiculeLinkID, kAmelieLinkID, kJoyeuxNoelLinkID, kCampingLinkID,
+      kOKButtonID, kCancelButtonID,
+#if !defined(USE_AURA)
+      kStyleContainerID, kItalicCheckBoxID, kUnderlinedCheckBoxID,
+      kStyleHelpLinkID, kStyleTextEditID,
+#endif
+      kSearchButtonID, kThumbnailContainerID, kThumbnailStarID,
+      kThumbnailSuperStarID };
+
+  // Let's disable some views.
+  for (size_t i = 0; i < arraysize(kDisabledIDs); i++) {
+    View* v = FindViewByID(kDisabledIDs[i]);
+    ASSERT_TRUE(v != NULL);
+    v->SetEnabled(false);
+  }
+
+  // Uncomment the following line if you want to test manually the UI of this
+  // test.
+  // MessageLoopForUI::current()->RunWithDispatcher(new AcceleratorHandler());
+
+  View* focused_view;
+  // Let's do one traversal (several times, to make sure it loops ok).
+  GetFocusManager()->ClearFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (size_t j = 0; j < arraysize(kTraversalIDs); j++) {
+      GetFocusManager()->AdvanceFocus(false);
+      focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kTraversalIDs[j], focused_view->id());
+    }
+  }
+
+  // Same thing in reverse.
+  GetFocusManager()->ClearFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (int j = arraysize(kTraversalIDs) - 1; j >= 0; --j) {
+      GetFocusManager()->AdvanceFocus(true);
+      focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kTraversalIDs[j], focused_view->id());
+    }
+  }
+}
+
+TEST_F(FocusTraversalTest, TraversalWithInvisibleViews) {
+  const int kInvisibleIDs[] = { kTopCheckBoxID, kOKButtonID,
+      kThumbnailContainerID };
+
+  const int kTraversalIDs[] = { kAppleTextfieldID, kOrangeTextfieldID,
+      kBananaTextfieldID, kKiwiTextfieldID, kFruitButtonID, kFruitCheckBoxID,
+      kComboboxID, kBroccoliButtonID, kRosettaLinkID,
+      kStupeurEtTremblementLinkID, kDinerGameLinkID, kRidiculeLinkID,
+      kClosetLinkID, kVisitingLinkID, kAmelieLinkID, kJoyeuxNoelLinkID,
+      kCampingLinkID, kBriceDeNiceLinkID, kTaxiLinkID, kAsterixLinkID,
+      kCancelButtonID, kHelpButtonID,
+#if !defined(USE_AURA)
+      kStyleContainerID, kBoldCheckBoxID, kItalicCheckBoxID,
+      kUnderlinedCheckBoxID, kStyleHelpLinkID, kStyleTextEditID,
+#endif
+      kSearchTextfieldID, kSearchButtonID, kHelpLinkID };
+
+
+  // Let's make some views invisible.
+  for (size_t i = 0; i < arraysize(kInvisibleIDs); i++) {
+    View* v = FindViewByID(kInvisibleIDs[i]);
+    ASSERT_TRUE(v != NULL);
+    v->SetVisible(false);
+  }
+
+  // Uncomment the following line if you want to test manually the UI of this
+  // test.
+  // MessageLoopForUI::current()->RunWithDispatcher(new AcceleratorHandler());
+
+  View* focused_view;
+  // Let's do one traversal (several times, to make sure it loops ok).
+  GetFocusManager()->ClearFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (size_t j = 0; j < arraysize(kTraversalIDs); j++) {
+      GetFocusManager()->AdvanceFocus(false);
+      focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kTraversalIDs[j], focused_view->id());
+    }
+  }
+
+  // Same thing in reverse.
+  GetFocusManager()->ClearFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (int j = arraysize(kTraversalIDs) - 1; j >= 0; --j) {
+      GetFocusManager()->AdvanceFocus(true);
+      focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kTraversalIDs[j], focused_view->id());
+    }
+  }
+}
+
+TEST_F(FocusTraversalTest, PaneTraversal) {
+  // Tests trapping the traversal within a pane - useful for full
+  // keyboard accessibility for toolbars.
+
+  // First test the left container.
+  const int kLeftTraversalIDs[] = {
+    kAppleTextfieldID,
+    kOrangeTextfieldID, kBananaTextfieldID, kKiwiTextfieldID,
+    kFruitButtonID, kFruitCheckBoxID, kComboboxID };
+
+  FocusSearch focus_search_left(left_container_, true, false);
+  left_container_->EnablePaneFocus(&focus_search_left);
+  FindViewByID(kComboboxID)->RequestFocus();
+
+  // Traverse the focus hierarchy within the pane several times.
+  for (int i = 0; i < 3; ++i) {
+    for (size_t j = 0; j < arraysize(kLeftTraversalIDs); j++) {
+      GetFocusManager()->AdvanceFocus(false);
+      View* focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kLeftTraversalIDs[j], focused_view->id());
+    }
+  }
+
+  // Traverse in reverse order.
+  FindViewByID(kAppleTextfieldID)->RequestFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (int j = arraysize(kLeftTraversalIDs) - 1; j >= 0; --j) {
+      GetFocusManager()->AdvanceFocus(true);
+      View* focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kLeftTraversalIDs[j], focused_view->id());
+    }
+  }
+
+  // Now test the right container, but this time with accessibility mode.
+  // Make some links not focusable, but mark one of them as
+  // "accessibility focusable", so it should show up in the traversal.
+  const int kRightTraversalIDs[] = {
+    kBroccoliButtonID, kDinerGameLinkID, kRidiculeLinkID,
+    kClosetLinkID, kVisitingLinkID, kAmelieLinkID, kJoyeuxNoelLinkID,
+    kCampingLinkID, kBriceDeNiceLinkID, kTaxiLinkID, kAsterixLinkID };
+
+  FocusSearch focus_search_right(right_container_, true, true);
+  right_container_->EnablePaneFocus(&focus_search_right);
+  FindViewByID(kRosettaLinkID)->set_focusable(false);
+  FindViewByID(kStupeurEtTremblementLinkID)->set_focusable(false);
+  FindViewByID(kDinerGameLinkID)->set_accessibility_focusable(true);
+  FindViewByID(kDinerGameLinkID)->set_focusable(false);
+  FindViewByID(kAsterixLinkID)->RequestFocus();
+
+  // Traverse the focus hierarchy within the pane several times.
+  for (int i = 0; i < 3; ++i) {
+    for (size_t j = 0; j < arraysize(kRightTraversalIDs); j++) {
+      GetFocusManager()->AdvanceFocus(false);
+      View* focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kRightTraversalIDs[j], focused_view->id());
+    }
+  }
+
+  // Traverse in reverse order.
+  FindViewByID(kBroccoliButtonID)->RequestFocus();
+  for (int i = 0; i < 3; ++i) {
+    for (int j = arraysize(kRightTraversalIDs) - 1; j >= 0; --j) {
+      GetFocusManager()->AdvanceFocus(true);
+      View* focused_view = GetFocusManager()->GetFocusedView();
+      EXPECT_TRUE(focused_view != NULL);
+      if (focused_view)
+        EXPECT_EQ(kRightTraversalIDs[j], focused_view->id());
+    }
+  }
+}
+
+}  // namespace views