ev-media-player-keys.c File Reference

#include "config.h"
#include "ev-media-player-keys.h"
#include <string.h>
#include <glib.h>
#include <gio/gio.h>

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Data Structures
struct	_EvMediaPlayerKeys
struct	_EvMediaPlayerKeysClass

Macros
#define	SD_NAME   "org.gnome.SettingsDaemon"
#define	SD_OBJECT_PATH   "/org/gnome/SettingsDaemon/MediaKeys"
#define	SD_INTERFACE   "org.gnome.SettingsDaemon.MediaKeys"

Enumerations
enum	{ KEY_PRESSED, LAST_SIGNAL }

Functions
static void	ev_media_player_keys_finalize (GObject *object)
static void	ev_media_player_keys_class_init (EvMediaPlayerKeysClass *klass)
static void	ev_media_player_keys_update_has_name_owner (EvMediaPlayerKeys *keys)
static void	ev_media_player_keys_grab_keys (EvMediaPlayerKeys *keys)
static void	ev_media_player_keys_release_keys (EvMediaPlayerKeys *keys)
static void	media_player_key_pressed_cb (GDBusProxy *proxy, gchar *sender_name, gchar *signal_name, GVariant *parameters, gpointer user_data)
static void	mediakeys_name_owner_changed (GObject *object, GParamSpec *pspec, gpointer user_data)
static void	mediakeys_service_appeared_cb (GObject *source_object, GAsyncResult *res, gpointer user_data)
static void	ev_media_player_keys_init (EvMediaPlayerKeys *keys)
void	ev_media_player_keys_focused (EvMediaPlayerKeys *keys)
EvMediaPlayerKeys *	ev_media_player_keys_new (void)

Variables
static guint	signals [LAST_SIGNAL]

Macro Definition Documentation

#define SD_INTERFACE   "org.gnome.SettingsDaemon.MediaKeys"

Definition at line 33 of file ev-media-player-keys.c.

#define SD_NAME   "org.gnome.SettingsDaemon"

Definition at line 31 of file ev-media-player-keys.c.

#define SD_OBJECT_PATH   "/org/gnome/SettingsDaemon/MediaKeys"

Definition at line 32 of file ev-media-player-keys.c.

Enumeration Type Documentation

anonymous enum

Enumerator
KEY_PRESSED
LAST_SIGNAL

Definition at line 35 of file ev-media-player-keys.c.

     {
    KEY_PRESSED,
    LAST_SIGNAL
};

Function Documentation

static void ev_media_player_keys_class_init ( EvMediaPlayerKeysClass *  klass)

static

Definition at line 64 of file ev-media-player-keys.c.

{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    object_class->finalize = ev_media_player_keys_finalize;

    signals[KEY_PRESSED] =
        g_signal_new ("key_pressed",
                  EV_TYPE_MEDIA_PLAYER_KEYS,
                  G_SIGNAL_RUN_LAST,
                  G_STRUCT_OFFSET (EvMediaPlayerKeysClass, key_pressed),
                  NULL, NULL,
                  g_cclosure_marshal_VOID__STRING,
                  G_TYPE_NONE,
                  1, G_TYPE_STRING);
}

static void ev_media_player_keys_finalize ( GObject *  object)

static

Definition at line 214 of file ev-media-player-keys.c.

{
    EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (object);

        if (keys->proxy != NULL) {
        ev_media_player_keys_release_keys (keys);
                g_object_unref (keys->proxy);
        keys->proxy = NULL;
        keys->has_name_owner = FALSE;
    }

    G_OBJECT_CLASS (ev_media_player_keys_parent_class)->finalize (object);
}

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void ev_media_player_keys_focused

(

EvMediaPlayerKeys *

keys)

Definition at line 205 of file ev-media-player-keys.c.

{
    if (keys->proxy == NULL)
        return;
    
    ev_media_player_keys_grab_keys (keys);
}

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static void ev_media_player_keys_grab_keys ( EvMediaPlayerKeys *  keys)

static

Definition at line 97 of file ev-media-player-keys.c.

{
    if (!keys->has_name_owner)
        return;

    /*
     * The uint as second argument is time. We give a very low value so that
     * if a media player is there it gets higher priority on the keys (0 is
     * a special value having maximum priority).
     */
        g_dbus_proxy_call (keys->proxy,
               "GrabMediaPlayerKeys",
               g_variant_new ("(su)", "Evince", 1),
               G_DBUS_CALL_FLAGS_NO_AUTO_START,
               -1,
               NULL, NULL, NULL);
}

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static void ev_media_player_keys_init ( EvMediaPlayerKeys *  keys)

static

Definition at line 191 of file ev-media-player-keys.c.

{
    g_dbus_proxy_new_for_bus (G_BUS_TYPE_SESSION,
                  G_DBUS_PROXY_FLAGS_DO_NOT_LOAD_PROPERTIES,
                  NULL,
                  SD_NAME,
                  SD_OBJECT_PATH,
                  SD_INTERFACE,
                  NULL,
                  mediakeys_service_appeared_cb,
                  keys);
}

EvMediaPlayerKeys* ev_media_player_keys_new

(

void

)

Definition at line 229 of file ev-media-player-keys.c.

{
    return g_object_new (EV_TYPE_MEDIA_PLAYER_KEYS, NULL);
}

static void ev_media_player_keys_release_keys ( EvMediaPlayerKeys *  keys)

static

Definition at line 116 of file ev-media-player-keys.c.

{
    if (!keys->has_name_owner)
        return;

        g_dbus_proxy_call (keys->proxy,
               "ReleaseMediaPlayerKeys",
               g_variant_new ("(s)", "Evince"),
               G_DBUS_CALL_FLAGS_NO_AUTO_START,
               -1,
               NULL, NULL, NULL);
}

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static void ev_media_player_keys_update_has_name_owner ( EvMediaPlayerKeys *  keys)

static

Definition at line 82 of file ev-media-player-keys.c.

{
    gchar *name_owner;

    if (!keys->proxy) {
        keys->has_name_owner = FALSE;
        return;
    }

    name_owner = g_dbus_proxy_get_name_owner (keys->proxy);
    keys->has_name_owner = (name_owner != NULL);
    g_free (name_owner);
}

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static void media_player_key_pressed_cb ( GDBusProxy *  proxy, gchar *  sender_name, gchar *  signal_name, GVariant *  parameters, gpointer  user_data  )

static

Definition at line 130 of file ev-media-player-keys.c.

{
        const char *application, *key;

        if (g_strcmp0 (sender_name, SD_NAME) != 0)
                return;

        if (g_strcmp0 (signal_name, "MediaPlayerKeyPressed") != 0)
                return;

        if (!g_variant_is_of_type (parameters, G_VARIANT_TYPE ("(ss)")))
                return;

        g_variant_get (parameters, "(&s&s)", &application, &key);

        if (strcmp ("Evince", application) == 0) {
                g_signal_emit (user_data, signals[KEY_PRESSED], 0, key);
        }
}

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static void mediakeys_name_owner_changed ( GObject *  object, GParamSpec *  pspec, gpointer  user_data  )

static

Definition at line 155 of file ev-media-player-keys.c.

{
    EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (user_data);

    ev_media_player_keys_update_has_name_owner (keys);
}

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static void mediakeys_service_appeared_cb ( GObject *  source_object, GAsyncResult *  res, gpointer  user_data  )

static

Definition at line 165 of file ev-media-player-keys.c.

{
        EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (user_data);
    GDBusProxy *proxy;

    proxy = g_dbus_proxy_new_for_bus_finish (res, NULL);

    if (proxy == NULL) {
        return;
    }

    g_signal_connect (proxy, "g-signal",
              G_CALLBACK (media_player_key_pressed_cb),
              keys);
    g_signal_connect (proxy, "notify::g-name-owner",
              G_CALLBACK (mediakeys_name_owner_changed),
              keys);

    keys->proxy = proxy;
    ev_media_player_keys_update_has_name_owner (keys);
    ev_media_player_keys_grab_keys (keys);
}

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Variable Documentation

guint signals[LAST_SIGNAL]

static

Definition at line 57 of file ev-media-player-keys.c.