// 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.

#ifndef CHROME_BROWSER_UI_GTK_FULLSCREEN_EXIT_BUBBLE_GTK_H_
#define CHROME_BROWSER_UI_GTK_FULLSCREEN_EXIT_BUBBLE_GTK_H_

#include "chrome/browser/ui/fullscreen/fullscreen_exit_bubble.h"
#include "chrome/browser/ui/fullscreen/fullscreen_exit_bubble_type.h"
#include "chrome/browser/ui/gtk/slide_animator_gtk.h"
#include "content/public/browser/notification_observer.h"
#include "content/public/browser/notification_registrar.h"
#include "ui/base/gtk/gtk_signal.h"
#include "ui/base/gtk/gtk_signal_registrar.h"

class GtkThemeService;

typedef struct _GtkFloatingContainer GtkFloatingContainer;
typedef struct _GtkWidget GtkWidget;

// FullscreenExitBubbleGTK is responsible for showing a bubble atop the screen
// in fullscreen mode, telling users how to exit and providing a click target.
class FullscreenExitBubbleGtk : public FullscreenExitBubble,
                                public content::NotificationObserver {
 public:
  // We place the bubble in |container|.
  FullscreenExitBubbleGtk(
      GtkFloatingContainer* container,
      Browser* delegate,
      const GURL& url,
      FullscreenExitBubbleType bubble_type);
  virtual ~FullscreenExitBubbleGtk();

  void UpdateContent(const GURL& url,
                     FullscreenExitBubbleType bubble_type);
 protected:
  // FullScreenExitBubble
  virtual gfx::Rect GetPopupRect(bool ignore_animation_state) const OVERRIDE;
  virtual gfx::Point GetCursorScreenPoint() OVERRIDE;
  virtual bool WindowContainsPoint(gfx::Point pos) OVERRIDE;
  virtual bool IsWindowActive() OVERRIDE;
  virtual void Hide() OVERRIDE;
  virtual void Show() OVERRIDE;
  virtual bool IsAnimating() OVERRIDE;
  virtual bool CanMouseTriggerSlideIn() const OVERRIDE;

 private:
  void InitWidgets();
  std::string GetMessage(const GURL& url);
  void StartWatchingMouseIfNecessary();

  GtkWidget* widget() const {
    return slide_widget_->widget();
  }

  CHROMEGTK_CALLBACK_1(FullscreenExitBubbleGtk, void, OnSetFloatingPosition,
                       GtkAllocation*);
  CHROMEGTK_CALLBACK_0(FullscreenExitBubbleGtk, void, OnLinkClicked);
  CHROMEGTK_CALLBACK_0(FullscreenExitBubbleGtk, void, OnAllowClicked);
  CHROMEGTK_CALLBACK_0(FullscreenExitBubbleGtk, void, OnDenyClicked);

  // Overridden from content::NotificationObserver:
  virtual void Observe(int type,
                       const content::NotificationSource& source,
                       const content::NotificationDetails& details) OVERRIDE;

  GtkThemeService* theme_service_;

  GtkWidget* bubble_;

  // A pointer to the floating container that is our parent.
  GtkFloatingContainer* container_;

  // The widget that contains the UI.
  ui::OwnedWidgetGtk ui_container_;
  GtkWidget* instruction_label_;
  GtkWidget* hbox_;
  GtkWidget* message_label_;
  GtkWidget* link_;
  GtkWidget* allow_button_;
  GtkWidget* deny_button_;

  // The widget that animates the slide-out of fullscreen exit bubble.
  scoped_ptr<SlideAnimatorGtk> slide_widget_;

  // The timer that does the initial hiding of the exit bubble.
  base::OneShotTimer<FullscreenExitBubbleGtk> initial_delay_;

  ui::GtkSignalRegistrar signals_;

  content::NotificationRegistrar registrar_;

  DISALLOW_COPY_AND_ASSIGN(FullscreenExitBubbleGtk);
};

#endif  // CHROME_BROWSER_UI_GTK_FULLSCREEN_EXIT_BUBBLE_GTK_H_