When critical updates have been installed and the user has been idle for quite some time, show a ...

chrome/browser/ui/views/critical_notification_bubble_view.h

+// 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.
+
+#ifndef CHROME_BROWSER_UI_VIEWS_CRITICAL_NOTIFICATION_BUBBLE_VIEW_H_
+#define CHROME_BROWSER_UI_VIEWS_CRITICAL_NOTIFICATION_BUBBLE_VIEW_H_
+#pragma once
+
+#include "base/timer.h"
+#include "chrome/browser/ui/views/bubble/bubble.h"
+#include "views/controls/button/button.h"
+#include "views/view.h"
+
+namespace views {
+class ImageView;
+class Label;
+class NativeTextButton;
+}
+
+class CriticalNotificationBubbleView : public views::View,
+                                       public views::ButtonListener,
+                                       public BubbleDelegate,
+                                       public ui::AnimationDelegate {
+ public:
+  CriticalNotificationBubbleView();
+  virtual ~CriticalNotificationBubbleView();
+
+  void set_bubble(Bubble* bubble) { bubble_ = bubble; }
+
+  // views::View methods:
+  virtual gfx::Size GetPreferredSize() OVERRIDE;
+  virtual void Layout() OVERRIDE;
+
+  // views::ButtonListener methods:
+  virtual void ButtonPressed(views::Button* sender,
+                             const views::Event& event) OVERRIDE;
+
+  // BubbleDelegate methods:
+  virtual void BubbleClosing(Bubble* bubble, bool closed_by_escape) OVERRIDE;
+  virtual bool CloseOnEscape() OVERRIDE;
+  virtual bool FadeInOnShow() OVERRIDE;
+  virtual string16 GetAccessibleName() OVERRIDE;
+
+ private:
+  // Helper function to calculate the remaining time (in seconds) until
+  // spontaneous reboot.
+  int GetRemainingTime();
+
+  // Helper function to set the headline for the bubble.
+  void UpdateBubbleHeadline(int seconds);
+
+  // Called when the timer fires each time the clock ticks.
+  void OnCountdown();
+
+  // Global pointer to the bubble that is hosting our view.
+  static Bubble* bubble_;
+
+  // The views on the bubble.
+  views::ImageView* image_;
+  views::Label* headline_;
+  views::Label* message_;
+  views::NativeTextButton* restart_button_;
+  views::NativeTextButton* dismiss_button_;
+
+  // A timer to refresh the bubble to show new countdown value.
+  base::RepeatingTimer<CriticalNotificationBubbleView> refresh_timer_;
+
+  // When the bubble was created.
+  base::Time bubble_created_;
+
+  DISALLOW_COPY_AND_ASSIGN(CriticalNotificationBubbleView);
+};
+
+#endif  // CHROME_BROWSER_UI_VIEWS_CRITICAL_NOTIFICATION_BUBBLE_VIEW_H_