MacViews: Implement Full Keyboard Access.

ui/views/focus/focus_manager_unittest.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 "ui/views/focus/focus_manager.h"
 
 #include <stddef.h>
 
 #include <utility>
 #include <vector>
@@ skipping 766 matching lines @@
   EXPECT_EQ(v[1], focus_manager->GetFocusedView());
   focus_manager->OnKeyEvent(left_key);
   EXPECT_EQ(v[0], focus_manager->GetFocusedView());
   focus_manager->OnKeyEvent(down_key);
   EXPECT_EQ(v[1], focus_manager->GetFocusedView());
   focus_manager->OnKeyEvent(up_key);
   EXPECT_EQ(v[0], focus_manager->GetFocusedView());
 }
 
 TEST_F(FocusManagerTest, StoreFocusedView) {
-  View view;
-  GetFocusManager()->SetFocusedView(&view);
+  View* view = new View;
+  // Add view to the view hierarchy and make it focusable.
+  GetWidget()->GetRootView()->AddChildView(view);
+  view->SetFocusBehavior(View::FocusBehavior::ALWAYS);
+
+  GetFocusManager()->SetFocusedView(view);
   GetFocusManager()->StoreFocusedView(false);
   EXPECT_EQ(NULL, GetFocusManager()->GetFocusedView());
   EXPECT_TRUE(GetFocusManager()->RestoreFocusedView());
-  EXPECT_EQ(&view, GetFocusManager()->GetStoredFocusView());
+  EXPECT_EQ(view, GetFocusManager()->GetStoredFocusView());
 
   // Repeat with |true|.
-  GetFocusManager()->SetFocusedView(&view);
+  GetFocusManager()->SetFocusedView(view);
   GetFocusManager()->StoreFocusedView(true);
   EXPECT_EQ(NULL, GetFocusManager()->GetFocusedView());
   EXPECT_TRUE(GetFocusManager()->RestoreFocusedView());
-  EXPECT_EQ(&view, GetFocusManager()->GetStoredFocusView());
+  EXPECT_EQ(view, GetFocusManager()->GetStoredFocusView());
 }
 
+#if defined(OS_MACOSX)
+// Test that the correct view is restored if full keyboard access is changed.
+TEST_F(FocusManagerTest, StoreFocusedViewFullKeyboardAccess) {
+  View* view1 = new View;
+  View* view2 = new View;
+  View* view3 = new View;
+
+  // Make view1 focusable in accessibility mode, view2 not focusable and view3
+  // always focusable.
+  view1->SetFocusBehavior(View::FocusBehavior::ACCESSIBLE_ONLY);
+  view2->SetFocusBehavior(View::FocusBehavior::NEVER);
+  view3->SetFocusBehavior(View::FocusBehavior::ALWAYS);
+
+  // Add views to the view hierarchy
+  GetWidget()->GetRootView()->AddChildView(view1);
+  GetWidget()->GetRootView()->AddChildView(view2);
+  GetWidget()->GetRootView()->AddChildView(view3);
+
+  view1->RequestFocus();
+  EXPECT_EQ(view1, GetFocusManager()->GetFocusedView());
+  GetFocusManager()->StoreFocusedView(true);
+  EXPECT_EQ(nullptr, GetFocusManager()->GetFocusedView());
+
+  // Turn off full keyboard access mode and restore focused view. Since view1 is
+  // no longer focusable, view3 should have focus.
+  GetFocusManager()->SetKeyboardAccessible(false);
+  EXPECT_FALSE(GetFocusManager()->RestoreFocusedView());
+  EXPECT_EQ(view3, GetFocusManager()->GetFocusedView());
+
+  GetFocusManager()->StoreFocusedView(false);
+  EXPECT_EQ(nullptr, GetFocusManager()->GetFocusedView());
+
+  // Turn on full keyboard access mode and restore focused view. Since view3 is
+  // still focusable, view3 should have focus.
+  GetFocusManager()->SetKeyboardAccessible(true);
+  EXPECT_TRUE(GetFocusManager()->RestoreFocusedView());
+  EXPECT_EQ(view3, GetFocusManager()->GetFocusedView());
+}
+#endif
+
 namespace {
 
 // Trivial WidgetDelegate implementation that allows setting return value of
 // ShouldAdvanceFocusToTopLevelWidget().
 class AdvanceFocusWidgetDelegate : public WidgetDelegate {
  public:
   explicit AdvanceFocusWidgetDelegate(Widget* widget)
       : widget_(widget),
         should_advance_focus_to_parent_(false) {}
   ~AdvanceFocusWidgetDelegate() override {}
@@ skipping 62 matching lines @@
   EXPECT_EQ(view1, GetFocusManager()->GetFocusedView());
 
   // Allow focus to go to the parent, and focus backwards which should now move
   // up |widget_view| (in the parent).
   delegate->set_should_advance_focus_to_parent(true);
   GetFocusManager()->AdvanceFocus(true);
   EXPECT_EQ(widget_view, GetFocusManager()->GetFocusedView());
 }
 
 }  // namespace views