Scrolls to the notification when focus moves to its buttons.

ui/message_center/views/message_view.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/message_center/views/message_view.h"
 
 #include "grit/ui_resources.h"
 #include "grit/ui_strings.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/models/simple_menu_model.h"
@@ skipping 36 matching lines @@
 // will also allow for buttons whose touch areas extend beyond their clickable
 // area (<http://crbug.com/168856>).
 class ControlButton : public views::ImageButton {
  public:
   ControlButton(views::ButtonListener* listener);
   virtual ~ControlButton();
 
   // Overridden from views::ImageButton:
   virtual gfx::Size GetPreferredSize() OVERRIDE;
   virtual void OnPaint(gfx::Canvas* canvas) OVERRIDE;
+  virtual void OnFocus() OVERRIDE;
 
   // The SetPadding() method also sets the button's image alignment (positive
   // values yield left/top alignments, negative values yield right/bottom ones,
   // and zero values center/middle ones). ImageButton::SetImageAlignment() calls
   // will not affect ControlButton image alignments.
   void SetPadding(int horizontal_padding, int vertical_padding);
 
   void SetNormalImage(int resource_id);
   void SetHoveredImage(int resource_id);
   void SetPressedImage(int resource_id);
@@ skipping 55 matching lines @@
     gfx::Point position = ComputePaddedImagePaintPosition(image);
     if (!background_image_.isNull())
       canvas->DrawImageInt(background_image_, position.x(), position.y());
     canvas->DrawImageInt(image, position.x(), position.y());
     if (!overlay_image_.isNull())
       canvas->DrawImageInt(overlay_image_, position.x(), position.y());
   }
   OnPaintFocusBorder(canvas);
 }
 
+void ControlButton::OnFocus() {
+  ScrollRectToVisible(GetLocalBounds());
+}
+
 gfx::Point ControlButton::ComputePaddedImagePaintPosition(
     const gfx::ImageSkia& image) {
   gfx::Vector2d offset;
   gfx::Rect bounds = GetContentsBounds();
   bounds.Inset(padding_);
 
   if (padding_.left() == 0 && padding_.right() == 0)
     offset.set_x((bounds.width() - image.width()) / 2);  // Center align.
   else if (padding_.right() > 0)
     offset.set_x(bounds.width() - image.width());  // Right align.
@@ skipping 235 matching lines @@
       gfx::Rect(screen_location, gfx::Size()),
       views::MenuItemView::TOPRIGHT,
       views::MenuRunner::HAS_MNEMONICS));
 }
 
 void MessageView::OnSlideOut() {
   observer_->OnRemoveNotification(notification_id_, true);  // By user.
 }
 
 }  // namespace message_center