mirror of
https://gitlab.gnome.org/GNOME/evince
synced 2024-07-04 16:48:55 +00:00
84a2648215
Mostly g_clear_object and g_clear_pointer. But also some small simplifications depending on the context.
236 lines
5.8 KiB
C
236 lines
5.8 KiB
C
/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
|
|
/*
|
|
* Copyright (C) 2007 Jan Arne Petersen <jap@gnome.org>
|
|
* Copyright (C) 2008 Bastien Nocera <hadess@hadess.net>
|
|
* Copyright © 2010 Christian Persch
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License as published by
|
|
* the Free Software Foundation; either version 2 of the License, or
|
|
* (at your option) any later version.
|
|
*
|
|
* This program is distributed in the hope that it will be useful,
|
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
* GNU General Public License for more details.
|
|
*
|
|
* You should have received a copy of the GNU General Public License
|
|
* along with this program; if not, write to the Free Software
|
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
|
|
*
|
|
*/
|
|
|
|
#include "config.h"
|
|
|
|
#include "ev-media-player-keys.h"
|
|
|
|
#include <string.h>
|
|
#include <glib.h>
|
|
#include <gio/gio.h>
|
|
|
|
#define SD_NAME "org.gnome.SettingsDaemon.MediaKeys"
|
|
#define SD_OBJECT_PATH "/org/gnome/SettingsDaemon/MediaKeys"
|
|
#define SD_INTERFACE "org.gnome.SettingsDaemon.MediaKeys"
|
|
|
|
enum {
|
|
KEY_PRESSED,
|
|
LAST_SIGNAL
|
|
};
|
|
|
|
struct _EvMediaPlayerKeys
|
|
{
|
|
GObject parent;
|
|
|
|
GDBusProxy *proxy;
|
|
gboolean has_name_owner;
|
|
GCancellable *cancellable;
|
|
};
|
|
|
|
struct _EvMediaPlayerKeysClass
|
|
{
|
|
GObjectClass parent_class;
|
|
|
|
/* Signals */
|
|
void (* key_pressed) (EvMediaPlayerKeys *keys,
|
|
const gchar *key);
|
|
};
|
|
|
|
static guint signals[LAST_SIGNAL];
|
|
|
|
G_DEFINE_TYPE (EvMediaPlayerKeys, ev_media_player_keys, G_TYPE_OBJECT)
|
|
|
|
static void ev_media_player_keys_finalize (GObject *object);
|
|
|
|
static void
|
|
ev_media_player_keys_class_init (EvMediaPlayerKeysClass *klass)
|
|
{
|
|
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_update_has_name_owner (EvMediaPlayerKeys *keys)
|
|
{
|
|
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);
|
|
}
|
|
|
|
static void
|
|
ev_media_player_keys_grab_keys (EvMediaPlayerKeys *keys)
|
|
{
|
|
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);
|
|
}
|
|
|
|
static void
|
|
ev_media_player_keys_release_keys (EvMediaPlayerKeys *keys)
|
|
{
|
|
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);
|
|
}
|
|
|
|
static void
|
|
media_player_key_pressed_cb (GDBusProxy *proxy,
|
|
gchar *sender_name,
|
|
gchar *signal_name,
|
|
GVariant *parameters,
|
|
gpointer user_data)
|
|
{
|
|
const char *application, *key;
|
|
|
|
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);
|
|
}
|
|
}
|
|
|
|
static void
|
|
mediakeys_name_owner_changed (GObject *object,
|
|
GParamSpec *pspec,
|
|
gpointer user_data)
|
|
{
|
|
EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (user_data);
|
|
|
|
ev_media_player_keys_update_has_name_owner (keys);
|
|
}
|
|
|
|
static void
|
|
mediakeys_service_appeared_cb (GObject *source_object,
|
|
GAsyncResult *res,
|
|
gpointer user_data)
|
|
{
|
|
EvMediaPlayerKeys *keys;
|
|
GDBusProxy *proxy;
|
|
|
|
proxy = g_dbus_proxy_new_for_bus_finish (res, NULL);
|
|
|
|
if (proxy == NULL) {
|
|
return;
|
|
}
|
|
|
|
keys = EV_MEDIA_PLAYER_KEYS (user_data);
|
|
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);
|
|
}
|
|
|
|
static void
|
|
ev_media_player_keys_init (EvMediaPlayerKeys *keys)
|
|
{
|
|
keys->cancellable = g_cancellable_new ();
|
|
|
|
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,
|
|
keys->cancellable,
|
|
mediakeys_service_appeared_cb,
|
|
keys);
|
|
}
|
|
|
|
void
|
|
ev_media_player_keys_focused (EvMediaPlayerKeys *keys)
|
|
{
|
|
if (keys->proxy == NULL)
|
|
return;
|
|
|
|
ev_media_player_keys_grab_keys (keys);
|
|
}
|
|
|
|
static void
|
|
ev_media_player_keys_finalize (GObject *object)
|
|
{
|
|
EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (object);
|
|
|
|
g_cancellable_cancel (keys->cancellable);
|
|
g_object_unref (keys->cancellable);
|
|
|
|
if (keys->proxy != NULL) {
|
|
ev_media_player_keys_release_keys (keys);
|
|
g_clear_object (&keys->proxy);
|
|
keys->has_name_owner = FALSE;
|
|
}
|
|
|
|
G_OBJECT_CLASS (ev_media_player_keys_parent_class)->finalize (object);
|
|
}
|
|
|
|
EvMediaPlayerKeys *
|
|
ev_media_player_keys_new (void)
|
|
{
|
|
return g_object_new (EV_TYPE_MEDIA_PLAYER_KEYS, NULL);
|
|
}
|