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/*
An object to represent the application as an application indicator
in the system panel.

Copyright 2009 Canonical Ltd.

Authors:
    Ted Gould <ted@canonical.com>
    Cody Russell <cody.russell@canonical.com>

This program is free software: you can redistribute it and/or modify it
under the terms of either or both of the following licenses:

1) the GNU Lesser General Public License version 3, as published by the
   Free Software Foundation; and/or
2) the GNU Lesser General Public License version 2.1, as published by
   the Free Software Foundation.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranties of
MERCHANTABILITY, SATISFACTORY QUALITY or FITNESS FOR A PARTICULAR
PURPOSE.  See the applicable version of the GNU Lesser General Public
License for more details.

You should have received a copy of both the GNU Lesser General Public
License version 3 and version 2.1 along with this program.  If not, see
<http://www.gnu.org/licenses/>
*/

#ifndef __APP_INDICATOR_H__
#define __APP_INDICATOR_H__

#include <gtk/gtk.h>

G_BEGIN_DECLS

/**
	APP_INDICATOR_TYPE:

	Get the #GType for a #AppIndicator.
*/
/**
	APP_INDICATOR:
	@obj: The object to convert

	Safely convert a #GObject into an #AppIndicator.
*/
/**
	APP_INDICATOR_CLASS:
	@klass: #GObjectClass based class to convert.

	Safely convert a #GObjectClass into a #AppIndicatorClass.
*/
/**
	IS_APP_INDICATOR:
	@obj: An #GObject to check

	Checks to see if @obj is in the object hierarchy of #AppIndicator.
*/
/**
	IS_APP_INDICATOR_CLASS:
	@klass: An #GObjectClass to check

	Checks to see if @klass is in the object class hierarchy of #AppIndicatorClass.
*/
/**
	APP_INDICATOR_GET_CLASS:
	@obj: A #GObject in the class hierarchy of #AppIndicator.

	Gets a pointer to the #AppIndicatorClass for the object @obj.
*/
#define APP_INDICATOR_TYPE            (app_indicator_get_type ())
#define APP_INDICATOR(obj)            (G_TYPE_CHECK_INSTANCE_CAST ((obj), APP_INDICATOR_TYPE, AppIndicator))
#define APP_INDICATOR_CLASS(klass)    (G_TYPE_CHECK_CLASS_CAST ((klass), APP_INDICATOR_TYPE, AppIndicatorClass))
#define IS_APP_INDICATOR(obj)         (G_TYPE_CHECK_INSTANCE_TYPE ((obj), APP_INDICATOR_TYPE))
#define IS_APP_INDICATOR_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE ((klass), APP_INDICATOR_TYPE))
#define APP_INDICATOR_GET_CLASS(obj)  (G_TYPE_INSTANCE_GET_CLASS ((obj), APP_INDICATOR_TYPE, AppIndicatorClass))

#define APP_INDICATOR_SIGNAL_NEW_ICON            "new-icon"
#define APP_INDICATOR_SIGNAL_NEW_ATTENTION_ICON  "new-attention-icon"
#define APP_INDICATOR_SIGNAL_NEW_STATUS          "new-status"
#define APP_INDICATOR_SIGNAL_CONNECTION_CHANGED  "connection-changed"

/**
	AppIndicatorCategory:
	@APP_INDICATOR_CATEGORY_APPLICATION_STATUS: The indicator is used to display the status of the application.
	@APP_INDICATOR_CATEGORY_COMMUNICATIONS: The application is used for communication with other people.
	@APP_INDICATOR_CATEGORY_SYSTEM_SERVICES: A system indicator relating to something in the user's system.
	@APP_INDICATOR_CATEGORY_HARDWARE: An indicator relating to the user's hardware.
	@APP_INDICATOR_CATEGORY_OTHER: Something not defined in this enum, please don't use unless you really need it.

	The category provides grouping for the indicators so that
	users can find indicators that are similar together.
*/
typedef enum { /*< prefix=APP_INDICATOR_CATEGORY >*/
	APP_INDICATOR_CATEGORY_APPLICATION_STATUS,
	APP_INDICATOR_CATEGORY_COMMUNICATIONS,
	APP_INDICATOR_CATEGORY_SYSTEM_SERVICES,
	APP_INDICATOR_CATEGORY_HARDWARE,
	APP_INDICATOR_CATEGORY_OTHER
} AppIndicatorCategory;

/**
	AppIndicatorStatus:
	@APP_INDICATOR_STATUS_PASSIVE: The indicator should not be shown to the user.
	@APP_INDICATOR_STATUS_ACTIVE: The indicator should be shown in it's default state.
	@APP_INDICATOR_STATUS_ATTENTION: The indicator should show it's attention icon.

	These are the states that the indicator can be on in
	the user's panel.  The indicator by default starts
	in the state @APP_INDICATOR_STATUS_OFF and can be
	shown by setting it to @APP_INDICATOR_STATUS_ON.
*/
typedef enum { /*< prefix=APP_INDICATOR_STATUS >*/
	APP_INDICATOR_STATUS_PASSIVE,
	APP_INDICATOR_STATUS_ACTIVE,
	APP_INDICATOR_STATUS_ATTENTION
} AppIndicatorStatus;

typedef struct _AppIndicator        AppIndicator;
typedef struct _AppIndicatorClass   AppIndicatorClass;
typedef struct _AppIndicatorPrivate AppIndicatorPrivate;

/**
	AppIndicatorClass:
	@parent_class: Mia familia
	@new_icon: Slot for #AppIndicator::new-icon.
	@new_attention_icon: Slot for #AppIndicator::new-attention-icon.
	@new_status: Slot for #AppIndicator::new-status.
	@connection_changed: Slot for #AppIndicator::connection-changed.
	@app_indicator_reserved_1: Reserved for future use.
	@app_indicator_reserved_2: Reserved for future use.
	@app_indicator_reserved_3: Reserved for future use.
	@app_indicator_reserved_4: Reserved for future use.

	The signals and external functions that make up the #AppIndicator
	class object.
*/
struct _AppIndicatorClass {
	/* Parent */
	GObjectClass parent_class;

	/* DBus Signals */
	void (* new_icon)               (AppIndicator       *indicator,
	                                 gpointer            user_data);
	void (* new_attention_icon)     (AppIndicator       *indicator,
	                                 gpointer            user_data);
	void (* new_status)             (AppIndicator       *indicator,
	                                 const gchar        *status,
	                                 gpointer            user_data);

	/* Local Signals */
	void (* connection_changed)     (AppIndicator * indicator,
	                                 gboolean          connected,
	                                 gpointer          user_data);

	/* Reserved */
	void (*app_indicator_reserved_1)(void);
	void (*app_indicator_reserved_2)(void);
	void (*app_indicator_reserved_3)(void);
	void (*app_indicator_reserved_4)(void);
};

/**
	AppIndicator:
	@parent: Parent object.

	A application indicator represents the values that are needed to show a
	unique status in the panel for an application.  In general, applications
	should try to fit in the other indicators that are available on the
	panel before using this.  But, sometimes it is necissary.
*/
struct _AppIndicator {
	GObject parent;

        AppIndicatorPrivate *priv;
};

/* GObject Stuff */
GType                           app_indicator_get_type           (void) G_GNUC_CONST;

AppIndicator                   *app_indicator_new                (const gchar          *id,
                                                                  const gchar          *icon_name,
                                                                  AppIndicatorCategory  category);

/* Set properties */
void                            app_indicator_set_status         (AppIndicator       *self,
                                                                  AppIndicatorStatus  status);
void                            app_indicator_set_attention_icon (AppIndicator       *self,
                                                                  const gchar        *icon_name);
void                            app_indicator_set_menu           (AppIndicator       *self,
                                                                  GtkMenu            *menu);
void                            app_indicator_set_icon           (AppIndicator       *self,
                                                                  const gchar        *icon_name);

/* Get properties */
const gchar *                   app_indicator_get_id             (AppIndicator *self);
AppIndicatorCategory            app_indicator_get_category       (AppIndicator *self);
AppIndicatorStatus              app_indicator_get_status         (AppIndicator *self);
const gchar *                   app_indicator_get_icon           (AppIndicator *self);
const gchar *                   app_indicator_get_attention_icon (AppIndicator *self);

G_END_DECLS

#endif