Give up focus if the focused view becomes unfocusable

ui/views/examples/button_example.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/examples/button_example.h"
 
 #include "base/strings/utf_string_conversions.h"
 #include "grit/ui_resources.h"
 #include "ui/base/resource/resource_bundle.h"
 #include "ui/gfx/image/image.h"
@@ skipping 30 matching lines @@
 }
 
 ButtonExample::~ButtonExample() {
 }
 
 void ButtonExample::CreateExampleView(View* container) {
   container->set_background(Background::CreateSolidBackground(SK_ColorWHITE));
   container->SetLayoutManager(new BoxLayout(BoxLayout::kVertical, 10, 10, 10));
 
   text_button_ = new TextButton(this, ASCIIToUTF16(kTextButton));
-  text_button_->set_focusable(true);
+  text_button_->SetFocusable(true);
   container->AddChildView(text_button_);
 
   label_button_ = new LabelButton(this, ASCIIToUTF16(kLabelButton));
-  label_button_->set_focusable(true);
+  label_button_->SetFocusable(true);
   container->AddChildView(label_button_);
 
   LabelButton* disabled_button =
       new LabelButton(this, ASCIIToUTF16("Disabled Button"));
   disabled_button->SetStyle(Button::STYLE_BUTTON);
   disabled_button->SetState(Button::STATE_DISABLED);
   container->AddChildView(disabled_button);
 
   container->AddChildView(new BlueButton(this, ASCIIToUTF16("Blue Button")));
 
   ui::ResourceBundle& rb = ui::ResourceBundle::GetSharedInstance();
   image_button_ = new ImageButton(this);
-  image_button_->set_focusable(true);
+  image_button_->SetFocusable(true);
   image_button_->SetImage(ImageButton::STATE_NORMAL,
                           rb.GetImageNamed(IDR_CLOSE).ToImageSkia());
   image_button_->SetImage(ImageButton::STATE_HOVERED,
                           rb.GetImageNamed(IDR_CLOSE_H).ToImageSkia());
   image_button_->SetImage(ImageButton::STATE_PRESSED,
                           rb.GetImageNamed(IDR_CLOSE_P).ToImageSkia());
   image_button_->SetOverlayImage(rb.GetImageNamed(
       IDR_MENU_CHECK).ToImageSkia());
   container->AddChildView(image_button_);
 }
@@ skipping 74 matching lines @@
       label_button_->SetImage(Button::STATE_NORMAL,
           label_button_->GetImage(Button::STATE_NORMAL).isNull() ?
           *icon_ : gfx::ImageSkia());
     } else {
       label_button_->SetHorizontalAlignment(
           static_cast<gfx::HorizontalAlignment>(
               (label_button_->GetHorizontalAlignment() + 1) % 3));
     }
   } else if (event.IsShiftDown()) {
     if (event.IsAltDown()) {
-      label_button_->set_focusable(!label_button_->focusable());
+      label_button_->SetFocusable(!label_button_->focusable());
     } else {
       label_button_->SetStyle(static_cast<Button::ButtonStyle>(
           (label_button_->style() + 1) % Button::STYLE_COUNT));
     }
   } else if (event.IsAltDown()) {
     label_button_->SetIsDefault(!label_button_->is_default());
   } else {
     label_button_->set_min_size(gfx::Size());
   }
   example_view()->GetLayoutManager()->Layout(example_view());
 }
 
 void ButtonExample::ButtonPressed(Button* sender, const ui::Event& event) {
   if (sender == text_button_)
     TextButtonPressed(event);
   else if (sender == label_button_)
     LabelButtonPressed(event);
   else
     PrintStatus("Image Button Pressed! count: %d", ++count_);
 }
 
 }  // namespace examples
 }  // namespace views