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path: root/toolkit/system/gnome/nsAlertsIconListener.h
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/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef nsAlertsIconListener_h__
#define nsAlertsIconListener_h__

#include "nsCOMPtr.h"
#include "nsIAlertsService.h"
#include "nsString.h"
#include "nsIObserver.h"
#include "nsWeakReference.h"

#include <gdk-pixbuf/gdk-pixbuf.h>

class nsIAlertNotification;
class nsICancelable;
class nsSystemAlertsService;

struct NotifyNotification;

class nsAlertsIconListener : public nsIAlertNotificationImageListener,
                             public nsIObserver,
                             public nsSupportsWeakReference
{
public:
  NS_DECL_ISUPPORTS
  NS_DECL_NSIALERTNOTIFICATIONIMAGELISTENER
  NS_DECL_NSIOBSERVER

  nsAlertsIconListener(nsSystemAlertsService* aBackend,
                       const nsAString& aAlertName);

  nsresult InitAlertAsync(nsIAlertNotification* aAlert,
                          nsIObserver* aAlertListener);
  nsresult Close();

  void SendCallback();
  void SendClosed();

protected:
  virtual ~nsAlertsIconListener();

  /**
   * The only difference between libnotify.so.4 and libnotify.so.1 for these symbols
   * is that notify_notification_new takes three arguments in libnotify.so.4 and
   * four in libnotify.so.1.
   * Passing the fourth argument as NULL is binary compatible.
   */
  typedef void (*NotifyActionCallback)(NotifyNotification*, char*, gpointer);
  typedef bool (*notify_is_initted_t)(void);
  typedef bool (*notify_init_t)(const char*);
  typedef GList* (*notify_get_server_caps_t)(void);
  typedef NotifyNotification* (*notify_notification_new_t)(const char*, const char*, const char*, const char*);
  typedef bool (*notify_notification_show_t)(void*, GError**);
  typedef void (*notify_notification_set_icon_from_pixbuf_t)(void*, GdkPixbuf*);
  typedef void (*notify_notification_add_action_t)(void*, const char*, const char*, NotifyActionCallback, gpointer, GFreeFunc);
  typedef bool (*notify_notification_close_t)(void*, GError**);

  nsCOMPtr<nsICancelable> mIconRequest;
  nsCString mAlertTitle;
  nsCString mAlertText;

  nsCOMPtr<nsIObserver> mAlertListener;
  nsString mAlertCookie;
  nsString mAlertName;

  RefPtr<nsSystemAlertsService> mBackend;

  bool mAlertHasAction;

  static void* libNotifyHandle;
  static bool libNotifyNotAvail;
  static notify_is_initted_t notify_is_initted;
  static notify_init_t notify_init;
  static notify_get_server_caps_t notify_get_server_caps;
  static notify_notification_new_t notify_notification_new;
  static notify_notification_show_t notify_notification_show;
  static notify_notification_set_icon_from_pixbuf_t notify_notification_set_icon_from_pixbuf;
  static notify_notification_add_action_t notify_notification_add_action;
  static notify_notification_close_t notify_notification_close;
  NotifyNotification* mNotification;
  gulong mClosureHandler;

  nsresult ShowAlert(GdkPixbuf* aPixbuf);

  void NotifyFinished();
};

#endif