diff options
Diffstat (limited to 'plugins/sound/gsd-sound-manager.c')
| -rw-r--r-- | plugins/sound/gsd-sound-manager.c | 362 |
1 files changed, 362 insertions, 0 deletions
diff --git a/plugins/sound/gsd-sound-manager.c b/plugins/sound/gsd-sound-manager.c new file mode 100644 index 0000000..5fdb062 --- /dev/null +++ b/plugins/sound/gsd-sound-manager.c @@ -0,0 +1,362 @@ +/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*- + * + * Copyright (C) 2008 Lennart Poettering <lennart@poettering.net> + * + * 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, see <http://www.gnu.org/licenses/>. + * + */ + +#include "config.h" + +#include <sys/types.h> +#include <sys/wait.h> +#include <stdlib.h> +#include <stdio.h> +#include <unistd.h> +#include <string.h> +#include <errno.h> +#include <signal.h> + +#include <locale.h> + +#include <glib/gi18n.h> +#include <gio/gio.h> +#include <pulse/pulseaudio.h> + +#include "gsd-sound-manager.h" +#include "gnome-settings-profile.h" + +struct _GsdSoundManager +{ + GObject parent; + + GSettings *settings; + GList *monitors; + guint timeout; +}; + +static void gsd_sound_manager_class_init (GsdSoundManagerClass *klass); +static void gsd_sound_manager_init (GsdSoundManager *sound_manager); +static void gsd_sound_manager_finalize (GObject *object); + +G_DEFINE_TYPE (GsdSoundManager, gsd_sound_manager, G_TYPE_OBJECT) + +static gpointer manager_object = NULL; + +static void +sample_info_cb (pa_context *c, const pa_sample_info *i, int eol, void *userdata) +{ + pa_operation *o; + + if (!i) + return; + + g_debug ("Found sample %s", i->name); + + /* We only flush those samples which have an XDG sound name + * attached, because only those originate from themeing */ + if (!(pa_proplist_gets (i->proplist, PA_PROP_EVENT_ID))) + return; + + g_debug ("Dropping sample %s from cache", i->name); + + if (!(o = pa_context_remove_sample (c, i->name, NULL, NULL))) { + g_debug ("pa_context_remove_sample (): %s", pa_strerror (pa_context_errno (c))); + return; + } + + pa_operation_unref (o); + + /* We won't wait until the operation is actually executed to + * speed things up a bit.*/ +} + +static void +flush_cache (void) +{ + pa_mainloop *ml = NULL; + pa_context *c = NULL; + pa_proplist *pl = NULL; + pa_operation *o = NULL; + + g_debug ("Flushing sample cache"); + + if (!(ml = pa_mainloop_new ())) { + g_debug ("Failed to allocate pa_mainloop"); + goto fail; + } + + if (!(pl = pa_proplist_new ())) { + g_debug ("Failed to allocate pa_proplist"); + goto fail; + } + + pa_proplist_sets (pl, PA_PROP_APPLICATION_NAME, PACKAGE_NAME); + pa_proplist_sets (pl, PA_PROP_APPLICATION_VERSION, PACKAGE_VERSION); + pa_proplist_sets (pl, PA_PROP_APPLICATION_ID, "org.gnome.SettingsDaemon.Sound"); + + if (!(c = pa_context_new_with_proplist (pa_mainloop_get_api (ml), PACKAGE_NAME, pl))) { + g_debug ("Failed to allocate pa_context"); + goto fail; + } + + pa_proplist_free (pl); + pl = NULL; + + if (pa_context_connect (c, NULL, PA_CONTEXT_NOAUTOSPAWN, NULL) < 0) { + g_debug ("pa_context_connect(): %s", pa_strerror (pa_context_errno (c))); + goto fail; + } + + /* Wait until the connection is established */ + while (pa_context_get_state (c) != PA_CONTEXT_READY) { + + if (!PA_CONTEXT_IS_GOOD (pa_context_get_state (c))) { + g_debug ("Connection failed: %s", pa_strerror (pa_context_errno (c))); + goto fail; + } + + if (pa_mainloop_iterate (ml, TRUE, NULL) < 0) { + g_debug ("pa_mainloop_iterate() failed"); + goto fail; + } + } + + /* Enumerate all cached samples */ + if (!(o = pa_context_get_sample_info_list (c, sample_info_cb, NULL))) { + g_debug ("pa_context_get_sample_info_list(): %s", pa_strerror (pa_context_errno (c))); + goto fail; + } + + /* Wait until our operation is finished and there's nothing + * more queued to send to the server */ + while (pa_operation_get_state (o) == PA_OPERATION_RUNNING || pa_context_is_pending (c)) { + + if (!PA_CONTEXT_IS_GOOD (pa_context_get_state (c))) { + g_debug ("Connection failed: %s", pa_strerror (pa_context_errno (c))); + goto fail; + } + + if (pa_mainloop_iterate (ml, TRUE, NULL) < 0) { + g_debug ("pa_mainloop_iterate() failed"); + goto fail; + } + } + + g_debug ("Sample cache flushed"); + +fail: + if (o) { + pa_operation_cancel (o); + pa_operation_unref (o); + } + + if (c) { + pa_context_disconnect (c); + pa_context_unref (c); + } + + if (pl) + pa_proplist_free (pl); + + if (ml) + pa_mainloop_free (ml); +} + +static gboolean +flush_cb (GsdSoundManager *manager) +{ + flush_cache (); + manager->timeout = 0; + return FALSE; +} + +static void +trigger_flush (GsdSoundManager *manager) +{ + + if (manager->timeout) + g_source_remove (manager->timeout); + + /* We delay the flushing a bit so that we can coalesce + * multiple changes into a single cache flush */ + manager->timeout = g_timeout_add (500, (GSourceFunc) flush_cb, manager); + g_source_set_name_by_id (manager->timeout, "[gnome-settings-daemon] flush_cb"); +} + +static void +settings_changed_cb (GSettings *settings, + const char *key, + GsdSoundManager *manager) +{ + trigger_flush (manager); +} + +static void +register_config_callback (GsdSoundManager *manager) +{ + manager->settings = g_settings_new ("org.gnome.desktop.sound"); + g_signal_connect (G_OBJECT (manager->settings), "changed", + G_CALLBACK (settings_changed_cb), manager); +} + +static void +file_monitor_changed_cb (GFileMonitor *monitor, + GFile *file, + GFile *other_file, + GFileMonitorEvent event, + GsdSoundManager *manager) +{ + g_debug ("Theme dir changed"); + trigger_flush (manager); +} + +static gboolean +register_directory_callback (GsdSoundManager *manager, + const char *path, + GError **error) +{ + GFile *f; + GFileMonitor *m; + gboolean succ = FALSE; + + g_debug ("Registering directory monitor for %s", path); + + f = g_file_new_for_path (path); + + m = g_file_monitor_directory (f, 0, NULL, error); + + if (m != NULL) { + g_signal_connect (m, "changed", G_CALLBACK (file_monitor_changed_cb), manager); + + manager->monitors = g_list_prepend (manager->monitors, m); + + succ = TRUE; + } + + g_object_unref (f); + + return succ; +} + +gboolean +gsd_sound_manager_start (GsdSoundManager *manager, + GError **error) +{ + guint i; + const gchar * const * dirs; + char *p; + + g_debug ("Starting sound manager"); + gnome_settings_profile_start (NULL); + + /* We listen for change of the selected theme ... */ + register_config_callback (manager); + + /* ... and we listen to changes of the theme base directories + * in $HOME ...*/ + p = g_build_filename (g_get_user_data_dir (), "sounds", NULL); + if (g_mkdir_with_parents(p, 0700) == 0) + register_directory_callback (manager, p, NULL); + g_free (p); + + /* ... and globally. */ + dirs = g_get_system_data_dirs (); + for (i = 0; dirs[i] != NULL; i++) { + p = g_build_filename (dirs[i], "sounds", NULL); + if (g_file_test (p, G_FILE_TEST_IS_DIR)) + register_directory_callback (manager, p, NULL); + g_free (p); + } + + gnome_settings_profile_end (NULL); + + return TRUE; +} + +void +gsd_sound_manager_stop (GsdSoundManager *manager) +{ + g_debug ("Stopping sound manager"); + + if (manager->settings != NULL) { + g_object_unref (manager->settings); + manager->settings = NULL; + } + + if (manager->timeout) { + g_source_remove (manager->timeout); + manager->timeout = 0; + } + + while (manager->monitors) { + g_file_monitor_cancel (G_FILE_MONITOR (manager->monitors->data)); + g_object_unref (manager->monitors->data); + manager->monitors = g_list_delete_link (manager->monitors, manager->monitors); + } +} + +static void +gsd_sound_manager_dispose (GObject *object) +{ + GsdSoundManager *manager; + + manager = GSD_SOUND_MANAGER (object); + + gsd_sound_manager_stop (manager); + + G_OBJECT_CLASS (gsd_sound_manager_parent_class)->dispose (object); +} + +static void +gsd_sound_manager_class_init (GsdSoundManagerClass *klass) +{ + GObjectClass *object_class = G_OBJECT_CLASS (klass); + + object_class->dispose = gsd_sound_manager_dispose; + object_class->finalize = gsd_sound_manager_finalize; +} + +static void +gsd_sound_manager_init (GsdSoundManager *manager) +{ +} + +static void +gsd_sound_manager_finalize (GObject *object) +{ + GsdSoundManager *sound_manager; + + g_return_if_fail (object != NULL); + g_return_if_fail (GSD_IS_SOUND_MANAGER (object)); + + sound_manager = GSD_SOUND_MANAGER (object); + + g_return_if_fail (sound_manager); + + G_OBJECT_CLASS (gsd_sound_manager_parent_class)->finalize (object); +} + +GsdSoundManager * +gsd_sound_manager_new (void) +{ + if (manager_object) { + g_object_ref (manager_object); + } else { + manager_object = g_object_new (GSD_TYPE_SOUND_MANAGER, NULL); + g_object_add_weak_pointer (manager_object, (gpointer *) &manager_object); + } + + return GSD_SOUND_MANAGER (manager_object); +} |