X-Git-Url: https://www.fi.muni.cz/~kas/git//home/kas/public_html/git/?a=blobdiff_plain;f=shell%2Fev-media-player-keys.c;h=647a6186795e423bb37e797828ebc3003fed8a90;hb=4f8bc8db98020835d2c4d39c902a296b784cf030;hp=c244b2e9fbe8a3a6d1adf53c3afac66baf97a8d4;hpb=7042909ab901b54e952410572b3d724e49094158;p=evince.git diff --git a/shell/ev-media-player-keys.c b/shell/ev-media-player-keys.c index c244b2e9..647a6186 100644 --- a/shell/ev-media-player-keys.c +++ b/shell/ev-media-player-keys.c @@ -2,6 +2,7 @@ /* * Copyright (C) 2007 Jan Arne Petersen * Copyright (C) 2008 Bastien Nocera + * 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 @@ -21,33 +22,43 @@ #include "config.h" -#include -#include -#include -#include -#include +#include "ev-media-player-keys.h" + #include +#include +#include -#include "ev-media-player-keys.h" +#define SD_NAME "org.gnome.SettingsDaemon" +#define SD_OBJECT_PATH "/org/gnome/SettingsDaemon/MediaKeys" +#define SD_INTERFACE "org.gnome.SettingsDaemon.MediaKeys" -#include "ev-marshal.h" +enum { + KEY_PRESSED, + LAST_SIGNAL +}; struct _EvMediaPlayerKeys { GObject parent; - DBusGProxy *media_player_keys_proxy; - EvWindow *window; + + GDBusProxy *proxy; + gboolean has_name_owner; }; 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_init (EvMediaPlayerKeys *keys); -static void ev_media_player_keys_finalize (GObject *object); +static void ev_media_player_keys_finalize (GObject *object); static void ev_media_player_keys_class_init (EvMediaPlayerKeysClass *klass) @@ -55,111 +66,148 @@ 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 -proxy_destroy (DBusGProxy *proxy, - EvMediaPlayerKeys* keys) +ev_media_player_keys_update_has_name_owner (EvMediaPlayerKeys *keys) { - keys->media_player_keys_proxy = NULL; + 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 -on_media_player_key_pressed (DBusGProxy *proxy, const gchar *application, const gchar *key, EvMediaPlayerKeys *keys) +ev_media_player_keys_grab_keys (EvMediaPlayerKeys *keys) { - if (strcmp ("Evince", application) == 0 && keys->window != NULL) { - /* Note how Previous/Next only go to the - * next/previous page despite their icon telling you - * they should go to the beginning/end. - * - * There's very few keyboards with FFW/RWD though, - * so we stick the most useful keybinding on the most - * often seen keys - */ - if (strcmp ("Play", key) == 0) { - ev_window_start_presentation (keys->window); - } else if (strcmp ("Previous", key) == 0) { - ev_window_go_previous_page (keys->window); - } else if (strcmp ("Next", key) == 0) { - ev_window_go_next_page (keys->window); - } else if (strcmp ("FastForward", key) == 0) { - ev_window_go_last_page (keys->window); - } else if (strcmp ("Rewind", key) == 0) { - ev_window_go_first_page (keys->window); - } - } + 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_init (EvMediaPlayerKeys *keys) +ev_media_player_keys_release_keys (EvMediaPlayerKeys *keys) { - DBusGConnection *connection; - GError *err = NULL; - - connection = dbus_g_bus_get (DBUS_BUS_SESSION, &err); - if (connection == NULL) { - g_warning ("Error connecting to D-Bus: %s", err->message); + if (!keys->has_name_owner) return; - } - /* Try the gnome-settings-daemon version, - * then the gnome-control-center version of things */ - keys->media_player_keys_proxy = dbus_g_proxy_new_for_name_owner (connection, - "org.gnome.SettingsDaemon", - "/org/gnome/SettingsDaemon/MediaKeys", - "org.gnome.SettingsDaemon.MediaKeys", - NULL); - if (keys->media_player_keys_proxy == NULL) { - keys->media_player_keys_proxy = dbus_g_proxy_new_for_name_owner (connection, - "org.gnome.SettingsDaemon", - "/org/gnome/SettingsDaemon", - "org.gnome.SettingsDaemon", - &err); - } + 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 (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); + } +} + +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); +} - dbus_g_connection_unref (connection); - if (err != NULL) { - g_warning ("Failed to create dbus proxy for org.gnome.SettingsDaemon: %s", - err->message); - g_error_free (err); +static void +mediakeys_service_appeared_cb (GObject *source_object, + GAsyncResult *res, + gpointer user_data) +{ + EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (user_data); + GDBusProxy *proxy; + + proxy = g_dbus_proxy_new_for_bus_finish (res, NULL); + + if (proxy == NULL) { return; - } else { - g_signal_connect_object (keys->media_player_keys_proxy, - "destroy", - G_CALLBACK (proxy_destroy), - keys, 0); } - dbus_g_proxy_call (keys->media_player_keys_proxy, - "GrabMediaPlayerKeys", NULL, - G_TYPE_STRING, "Evince", G_TYPE_UINT, 0, G_TYPE_INVALID, - G_TYPE_INVALID); + 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); - dbus_g_object_register_marshaller (ev_marshal_VOID__STRING_STRING, - G_TYPE_NONE, G_TYPE_STRING, G_TYPE_STRING, G_TYPE_INVALID); - dbus_g_proxy_add_signal (keys->media_player_keys_proxy, "MediaPlayerKeyPressed", - G_TYPE_STRING, G_TYPE_STRING, G_TYPE_INVALID); + keys->proxy = proxy; + ev_media_player_keys_update_has_name_owner (keys); + ev_media_player_keys_grab_keys (keys); +} - dbus_g_proxy_connect_signal (keys->media_player_keys_proxy, "MediaPlayerKeyPressed", - G_CALLBACK (on_media_player_key_pressed), keys, NULL); +static void +ev_media_player_keys_init (EvMediaPlayerKeys *keys) +{ + 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); } void -ev_media_player_keys_focused (EvMediaPlayerKeys *keys, EvWindow *window) +ev_media_player_keys_focused (EvMediaPlayerKeys *keys) { - if (keys->media_player_keys_proxy != NULL) { - if (keys->window != NULL) { - g_object_unref (keys->window); - keys->window = NULL; - } - if (window != NULL) { - dbus_g_proxy_call (keys->media_player_keys_proxy, - "GrabMediaPlayerKeys", NULL, - G_TYPE_STRING, "Evince", G_TYPE_UINT, 0, G_TYPE_INVALID, - G_TYPE_INVALID); - keys->window = g_object_ref (window); - } - } + if (keys->proxy == NULL) + return; + + ev_media_player_keys_grab_keys (keys); } static void @@ -167,17 +215,11 @@ ev_media_player_keys_finalize (GObject *object) { EvMediaPlayerKeys *keys = EV_MEDIA_PLAYER_KEYS (object); - if (keys->media_player_keys_proxy != NULL) { - dbus_g_proxy_call (keys->media_player_keys_proxy, - "ReleaseMediaPlayerKeys", NULL, - G_TYPE_STRING, "Ev", G_TYPE_INVALID, G_TYPE_INVALID); - g_object_unref (keys->media_player_keys_proxy); - keys->media_player_keys_proxy = NULL; - } - - if (keys->window != NULL) { - g_object_unref (keys->window); - keys->window = NULL; + 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);