[mutter/wip/carlosg/sound-abstraction: 39/42] core: Add MetaSoundPlayer abstraction
- From: Carlos Garnacho <carlosg src gnome org>
- To: commits-list gnome org
- Cc:
- Subject: [mutter/wip/carlosg/sound-abstraction: 39/42] core: Add MetaSoundPlayer abstraction
- Date: Tue, 8 Jan 2019 15:14:56 +0000 (UTC)
commit 12f8325cbc42354918d061ac03ba42c190fc8968
Author: Carlos Garnacho <carlosg gnome org>
Date: Sun Dec 9 12:44:20 2018 +0100
core: Add MetaSoundPlayer abstraction
This is a simple libcanberra abstraction object, so we are able
to play file/theme sounds without poking into GTK+/X11. Play
requests are delegated to a separate thread, so we don't block
UI on cards that are slow to wake up from power saving.
src/Makefile.am | 2 +
src/core/display-private.h | 2 +
src/core/display.c | 16 +++
src/core/meta-sound-player.c | 290 +++++++++++++++++++++++++++++++++++++++++++
src/meson.build | 1 +
src/meta/display.h | 3 +
src/meta/meson.build | 1 +
src/meta/meta-sound-player.h | 39 ++++++
8 files changed, 354 insertions(+)
---
diff --git a/src/Makefile.am b/src/Makefile.am
index 8e5d03bce..3c5540bf9 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -295,6 +295,7 @@ libmutter_@LIBMUTTER_API_VERSION@_la_SOURCES = \
meta/meta-inhibit-shortcuts-dialog.h \
core/meta-inhibit-shortcuts-dialog-default.c \
core/meta-inhibit-shortcuts-dialog-default-private.h \
+ core/meta-sound-player.c \
core/delete.c \
core/display.c \
core/display-private.h \
@@ -585,6 +586,7 @@ libmutterinclude_headers = \
meta/meta-settings.h \
meta/meta-shaped-texture.h \
meta/meta-shadow-factory.h \
+ meta/meta-sound-player.h \
meta/meta-stage.h \
meta/meta-startup-notification.h \
meta/meta-window-actor.h \
diff --git a/src/core/display-private.h b/src/core/display-private.h
index 576a4254e..4156c2342 100644
--- a/src/core/display-private.h
+++ b/src/core/display-private.h
@@ -241,6 +241,8 @@ struct _MetaDisplay
MetaBell *bell;
MetaWorkspaceManager *workspace_manager;
+
+ MetaSoundPlayer *sound_player;
};
struct _MetaDisplayClass
diff --git a/src/core/display.c b/src/core/display.c
index f96f36b38..02b6f92e0 100644
--- a/src/core/display.c
+++ b/src/core/display.c
@@ -66,6 +66,7 @@
#include "meta/main.h"
#include "meta/meta-backend.h"
#include "meta/meta-enum-types.h"
+#include "meta/meta-sound-player.h"
#include "meta/meta-x11-errors.h"
#include "meta/prefs.h"
#include "x11/meta-startup-notification-x11.h"
@@ -777,6 +778,8 @@ meta_display_open (void)
meta_idle_monitor_init_dbus ();
+ display->sound_player = g_object_new (META_TYPE_SOUND_PLAYER, NULL);
+
/* Done opening new display */
display->display_opening = FALSE;
@@ -954,6 +957,7 @@ meta_display_close (MetaDisplay *display,
g_clear_object (&display->bell);
g_clear_object (&display->startup_notification);
g_clear_object (&display->workspace_manager);
+ g_clear_object (&display->sound_player);
g_object_unref (display);
the_display = NULL;
@@ -3629,3 +3633,15 @@ meta_display_generate_window_id (MetaDisplay *display)
/* We can overflow here, that's fine */
return (base_window_id + last_window_id++);
}
+
+/**
+ * meta_display_get_sound_player:
+ * @display: a #MetaDisplay
+ *
+ * Returns: (transfer none): The sound player of the display
+ */
+MetaSoundPlayer *
+meta_display_get_sound_player (MetaDisplay *display)
+{
+ return display->sound_player;
+}
diff --git a/src/core/meta-sound-player.c b/src/core/meta-sound-player.c
new file mode 100644
index 000000000..319510a5b
--- /dev/null
+++ b/src/core/meta-sound-player.c
@@ -0,0 +1,290 @@
+/*
+ * Copyright (C) 2018 Red Hat
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Author: Carlos Garnacho <carlosg gnome org>
+ */
+
+#include "config.h"
+
+#include <canberra.h>
+
+#include "meta/meta-sound-player.h"
+
+#define EVENT_SOUNDS_KEY "event-sounds"
+#define THEME_NAME_KEY "theme-name"
+
+typedef struct _MetaPlayRequest MetaPlayRequest;
+
+struct _MetaSoundPlayer
+{
+ GObject parent;
+ GThreadPool *queue;
+ GSettings *settings;
+ ca_context *context;
+ uint32_t id_pool;
+};
+
+struct _MetaPlayRequest
+{
+ ca_proplist *props;
+ uint32_t id;
+ guint cancel_id;
+ GCancellable *cancellable;
+ MetaSoundPlayer *player;
+};
+
+const char * const cache_whitelist[] = {
+ "bell-window-system",
+ "desktop-switch-left",
+ "desktop-switch-right",
+ "desktop-switch-up",
+ "desktop-switch-down",
+ NULL
+};
+
+G_DEFINE_TYPE (MetaSoundPlayer, meta_sound_player, G_TYPE_OBJECT)
+
+static MetaPlayRequest *
+meta_play_request_new (MetaSoundPlayer *player,
+ ca_proplist *props,
+ GCancellable *cancellable)
+{
+ MetaPlayRequest *req;
+
+ req = g_new0 (MetaPlayRequest, 1);
+ req->props = props;
+ req->player = player;
+ g_set_object (&req->cancellable, cancellable);
+
+ return req;
+}
+
+static void
+meta_play_request_free (MetaPlayRequest *req)
+{
+ g_clear_object (&req->cancellable);
+ ca_proplist_destroy (req->props);
+ g_free (req);
+}
+
+static void
+meta_sound_player_finalize (GObject *object)
+{
+ MetaSoundPlayer *player = META_SOUND_PLAYER (object);
+
+ g_object_unref (player->settings);
+ g_thread_pool_free (player->queue, FALSE, TRUE);
+ ca_context_destroy (player->context);
+
+ G_OBJECT_CLASS (meta_sound_player_parent_class)->finalize (object);
+}
+
+static void
+meta_sound_player_class_init (MetaSoundPlayerClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+
+ object_class->finalize = meta_sound_player_finalize;
+}
+
+static void
+cancelled_cb (GCancellable *cancellable,
+ MetaPlayRequest *req)
+{
+ ca_context_cancel (req->player->context, req->id);
+}
+
+static void
+finish_cb (ca_context *context,
+ uint32_t id,
+ int error_code,
+ gpointer user_data)
+{
+ MetaPlayRequest *req = user_data;
+
+ g_cancellable_disconnect (req->cancellable, req->cancel_id);
+ meta_play_request_free (req);
+}
+
+static void
+play_sound (MetaPlayRequest *req,
+ MetaSoundPlayer *player)
+{
+ req->id = player->id_pool++;
+
+ if (ca_context_play_full (player->context, req->id, req->props,
+ finish_cb, req) != CA_SUCCESS)
+ {
+ meta_play_request_free (req);
+ return;
+ }
+
+ if (req->cancellable)
+ {
+ req->cancel_id =
+ g_cancellable_connect (req->cancellable,
+ G_CALLBACK (cancelled_cb), req, NULL);
+ }
+}
+
+static void
+settings_changed_cb (GSettings *settings,
+ const char *key,
+ MetaSoundPlayer *player)
+{
+ if (strcmp (key, EVENT_SOUNDS_KEY) == 0)
+ {
+ gboolean enabled;
+
+ enabled = g_settings_get_boolean (settings, EVENT_SOUNDS_KEY);
+ ca_context_change_props (player->context, CA_PROP_CANBERRA_ENABLE,
+ enabled ? "1" : "0", NULL);
+ }
+ else if (strcmp (key, THEME_NAME_KEY) == 0)
+ {
+ char *theme_name;
+
+ theme_name = g_settings_get_string (settings, THEME_NAME_KEY);
+ ca_context_change_props (player->context, CA_PROP_CANBERRA_XDG_THEME_NAME,
+ theme_name, NULL);
+ g_free (theme_name);
+ }
+}
+
+static ca_context *
+create_context (GSettings *settings)
+{
+ ca_context *context;
+ ca_proplist *props;
+ gboolean enabled;
+ char *theme_name;
+
+ if (ca_context_create (&context) != CA_SUCCESS)
+ return NULL;
+
+ if (ca_proplist_create (&props) != CA_SUCCESS)
+ {
+ ca_context_destroy (context);
+ return NULL;
+ }
+
+ ca_proplist_sets (props, CA_PROP_APPLICATION_NAME, "Mutter");
+
+ enabled = g_settings_get_boolean (settings, EVENT_SOUNDS_KEY);
+ ca_proplist_sets (props, CA_PROP_CANBERRA_ENABLE, enabled ? "1" : "0");
+
+ theme_name = g_settings_get_string (settings, THEME_NAME_KEY);
+ ca_proplist_sets (props, CA_PROP_CANBERRA_XDG_THEME_NAME, theme_name);
+ g_free (theme_name);
+
+ ca_context_change_props_full (context, props);
+ ca_proplist_destroy (props);
+
+ return context;
+}
+
+static void
+meta_sound_player_init (MetaSoundPlayer *player)
+{
+ player->queue = g_thread_pool_new ((GFunc) play_sound,
+ player, 1, FALSE, NULL);
+ player->settings = g_settings_new ("org.gnome.desktop.sound");
+ player->context = create_context (player->settings);
+
+ g_signal_connect (player->settings, "changed",
+ G_CALLBACK (settings_changed_cb), player);
+}
+
+static void
+build_ca_proplist (ca_proplist *props,
+ const char *event_property,
+ const char *event_id,
+ const char *event_description)
+{
+ ca_proplist_sets (props, event_property, event_id);
+ ca_proplist_sets (props, CA_PROP_EVENT_DESCRIPTION, event_description);
+}
+
+/**
+ * meta_sound_player_play_from_theme:
+ * @sound: a #MetaSoundPlayer
+ * @name: sound theme name of the event
+ * @description: description of the event
+ * @cancellable: cancellable for the request
+ *
+ * Plays a sound from the sound theme.
+ **/
+void
+meta_sound_player_play_from_theme (MetaSoundPlayer *player,
+ const char *name,
+ const char *description,
+ GCancellable *cancellable)
+{
+ MetaPlayRequest *req;
+ ca_proplist *props;
+
+ g_return_if_fail (META_IS_SOUND_PLAYER (player));
+ g_return_if_fail (name != NULL);
+ g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+ ca_proplist_create (&props);
+ build_ca_proplist (props, CA_PROP_EVENT_ID, name, description);
+
+ if (g_strv_contains (cache_whitelist, name))
+ ca_proplist_sets (props, CA_PROP_CANBERRA_CACHE_CONTROL, "permanent");
+ else
+ ca_proplist_sets (props, CA_PROP_CANBERRA_CACHE_CONTROL, "volatile");
+
+ req = meta_play_request_new (player, props, cancellable);
+ g_thread_pool_push (player->queue, req, NULL);
+}
+
+/**
+ * meta_sound_player_play_from_file:
+ * @sound: a #MetaSoundPlayer
+ * @file: file to play
+ * @description: description of the played sound
+ * @cancellable: cancellable for the request
+ *
+ * Plays a sound from a file.
+ **/
+void
+meta_sound_player_play_from_file (MetaSoundPlayer *player,
+ GFile *file,
+ const char *description,
+ GCancellable *cancellable)
+{
+ MetaPlayRequest *req;
+ ca_proplist *props;
+ char *path;
+
+ g_return_if_fail (META_IS_SOUND_PLAYER (player));
+ g_return_if_fail (G_IS_FILE (file));
+ g_return_if_fail (!cancellable || G_IS_CANCELLABLE (cancellable));
+
+ path = g_file_get_path (file);
+ g_return_if_fail (path != NULL);
+
+ ca_proplist_create (&props);
+ build_ca_proplist (props, CA_PROP_MEDIA_FILENAME, path, description);
+ ca_proplist_sets (props, CA_PROP_CANBERRA_CACHE_CONTROL, "volatile");
+ g_free (path);
+
+ req = meta_play_request_new (player, props, cancellable);
+ g_thread_pool_push (player->queue, req, NULL);
+}
diff --git a/src/meson.build b/src/meson.build
index e258d8d39..c2f43b3ac 100644
--- a/src/meson.build
+++ b/src/meson.build
@@ -334,6 +334,7 @@ mutter_sources = [
'core/meta-inhibit-shortcuts-dialog.c',
'core/meta-inhibit-shortcuts-dialog-default.c',
'core/meta-inhibit-shortcuts-dialog-default-private.h',
+ 'core/meta-sound-player.c',
'core/meta-workspace-manager.c',
'core/meta-workspace-manager-private.h',
'core/place.c',
diff --git a/src/meta/display.h b/src/meta/display.h
index 68ddee7db..918817809 100644
--- a/src/meta/display.h
+++ b/src/meta/display.h
@@ -27,6 +27,7 @@
#include <meta/prefs.h>
#include <meta/common.h>
#include <meta/workspace.h>
+#include <meta/meta-sound-player.h>
#include <meta/meta-startup-notification.h>
/**
@@ -230,4 +231,6 @@ MetaWorkspaceManager *meta_display_get_workspace_manager (MetaDisplay *display);
*/
MetaStartupNotification * meta_display_get_startup_notification (MetaDisplay *display);
+MetaSoundPlayer * meta_display_get_sound_player (MetaDisplay *display);
+
#endif
diff --git a/src/meta/meson.build b/src/meta/meson.build
index bdd77a08e..a5a6ad2be 100644
--- a/src/meta/meson.build
+++ b/src/meta/meson.build
@@ -24,6 +24,7 @@ mutter_public_headers = [
'meta-settings.h',
'meta-shadow-factory.h',
'meta-shaped-texture.h',
+ 'meta-sound-player.h',
'meta-stage.h',
'meta-startup-notification.h',
'meta-window-actor.h',
diff --git a/src/meta/meta-sound-player.h b/src/meta/meta-sound-player.h
new file mode 100644
index 000000000..e6ddabd34
--- /dev/null
+++ b/src/meta/meta-sound-player.h
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2018 Red Hat
+ *
+ * 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., 59 Temple Place - Suite 330, Boston, MA
+ * 02111-1307, USA.
+ *
+ * Author: Carlos Garnacho <carlosg gnome org>
+ */
+#ifndef META_SOUND_PLAYER_H
+#define META_SOUND_PLAYER_H
+
+#include <gio/gio.h>
+
+#define META_TYPE_SOUND_PLAYER (meta_sound_player_get_type ())
+G_DECLARE_FINAL_TYPE (MetaSoundPlayer, meta_sound_player,
+ META, SOUND_PLAYER, GObject)
+
+void meta_sound_player_play_from_theme (MetaSoundPlayer *player,
+ const char *name,
+ const char *description,
+ GCancellable *cancellable);
+void meta_sound_player_play_from_file (MetaSoundPlayer *player,
+ GFile *file,
+ const char *description,
+ GCancellable *cancellable);
+
+#endif /* META_SOUND_PLAYER_H */
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