Give up focus if the focused view becomes unfocusable

ui/views/focus/focus_traversal_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 "base/run_loop.h"
 #include "base/strings/string_number_conversions.h"
 #include "base/strings/utf_string_conversions.h"
 #include "ui/base/models/combobox_model.h"
@@ skipping 116 matching lines @@
   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);
+    SetFocusable(false);
   }
 
   virtual ~BorderView() {}
 
   virtual internal::RootView* GetContentsRootView() {
     return static_cast<internal::RootView*>(widget_->GetRootView());
   }
 
   virtual FocusTraversable* GetFocusTraversable() OVERRIDE {
     return static_cast<internal::RootView*>(widget_->GetRootView());
@@ skipping 388 matching lines @@
 
   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->SetFocusable(true);
   contents->set_background(Background::CreateSolidBackground(SK_ColorBLUE));
   contents->set_id(kThumbnailContainerID);
   button = new LabelButton(NULL, ASCIIToUTF16("Star"));
   button->SetStyle(Button::STYLE_NATIVE_TEXTBUTTON);
   contents->AddChildView(button);
   button->SetBounds(5, 5, 50, 30);
   button->set_id(kThumbnailStarID);
   button = new LabelButton(NULL, ASCIIToUTF16("SuperStar"));
   button->SetStyle(Button::STYLE_NATIVE_TEXTBUTTON);
   contents->AddChildView(button);
@@ skipping 192 matching lines @@
   // 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(kRosettaLinkID)->SetFocusable(false);
+  FindViewByID(kStupeurEtTremblementLinkID)->SetFocusable(false);
+  FindViewByID(kDinerGameLinkID)->SetAccessibilityFocusable(true);
+  FindViewByID(kDinerGameLinkID)->SetFocusable(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