1 files changed, 239 insertions, 0 deletions
diff --git a/mate-volume-control/src/gvc-mixer-event-role.c b/mate-volume-control/src/gvc-mixer-event-role.c
new file mode 100644
index 0000000..6166d1d
--- /dev/null
+++ b/mate-volume-control/src/gvc-mixer-event-role.c
@@ -0,0 +1,239 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2008 William Jon McCann
+ *
+ * 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.
+ *
+ */
+
+#include "config.h"
+
+#include <stdlib.h>
+#include <stdio.h>
+#include <unistd.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+
+#include <pulse/pulseaudio.h>
+#include <pulse/ext-stream-restore.h>
+
+#include "gvc-mixer-event-role.h"
+
+#define GVC_MIXER_EVENT_ROLE_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_MIXER_EVENT_ROLE, GvcMixerEventRolePrivate))
+
+struct GvcMixerEventRolePrivate
+{
+ char *device;
+};
+
+enum
+{
+ PROP_0,
+ PROP_DEVICE
+};
+
+static void gvc_mixer_event_role_class_init (GvcMixerEventRoleClass *klass);
+static void gvc_mixer_event_role_init (GvcMixerEventRole *mixer_event_role);
+static void gvc_mixer_event_role_finalize (GObject *object);
+
+G_DEFINE_TYPE (GvcMixerEventRole, gvc_mixer_event_role, GVC_TYPE_MIXER_STREAM)
+
+static gboolean
+update_settings (GvcMixerEventRole *role,
+ gboolean is_muted,
+ gpointer *op)
+{
+ pa_operation *o;
+ guint index;
+ const GvcChannelMap *map;
+ pa_context *context;
+ pa_ext_stream_restore_info info;
+
+ index = gvc_mixer_stream_get_index (GVC_MIXER_STREAM (role));
+
+ map = gvc_mixer_stream_get_channel_map (GVC_MIXER_STREAM(role));
+
+ info.volume = *gvc_channel_map_get_cvolume(map);
+ info.name = "sink-input-by-media-role:event";
+ info.channel_map = *gvc_channel_map_get_pa_channel_map(map);
+ info.device = role->priv->device;
+ info.mute = is_muted;
+
+ context = gvc_mixer_stream_get_pa_context (GVC_MIXER_STREAM (role));
+
+ o = pa_ext_stream_restore_write (context,
+ PA_UPDATE_REPLACE,
+ &info,
+ 1,
+ TRUE,
+ NULL,
+ NULL);
+
+ if (o == NULL) {
+ g_warning ("pa_ext_stream_restore_write() failed");
+ return FALSE;
+ }
+
+ if (op != NULL)
+ *op = o;
+
+ return TRUE;
+}
+
+static gboolean
+gvc_mixer_event_role_push_volume (GvcMixerStream *stream, gpointer *op)
+{
+ return update_settings (GVC_MIXER_EVENT_ROLE (stream),
+ gvc_mixer_stream_get_is_muted (stream), op);
+}
+
+static gboolean
+gvc_mixer_event_role_change_is_muted (GvcMixerStream *stream,
+ gboolean is_muted)
+{
+ return update_settings (GVC_MIXER_EVENT_ROLE (stream),
+ is_muted, NULL);
+}
+
+static gboolean
+gvc_mixer_event_role_set_device (GvcMixerEventRole *role,
+ const char *device)
+{
+ g_return_val_if_fail (GVC_IS_MIXER_EVENT_ROLE (role), FALSE);
+
+ g_free (role->priv->device);
+ role->priv->device = g_strdup (device);
+ g_object_notify (G_OBJECT (role), "device");
+
+ return TRUE;
+}
+
+static void
+gvc_mixer_event_role_set_property (GObject *object,
+ guint prop_id,
+ const GValue *value,
+ GParamSpec *pspec)
+{
+ GvcMixerEventRole *self = GVC_MIXER_EVENT_ROLE (object);
+
+ switch (prop_id) {
+ case PROP_DEVICE:
+ gvc_mixer_event_role_set_device (self, g_value_get_string (value));
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static void
+gvc_mixer_event_role_get_property (GObject *object,
+ guint prop_id,
+ GValue *value,
+ GParamSpec *pspec)
+{
+ GvcMixerEventRole *self = GVC_MIXER_EVENT_ROLE (object);
+
+ switch (prop_id) {
+ case PROP_DEVICE:
+ g_value_set_string (value, self->priv->device);
+ break;
+ default:
+ G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+ break;
+ }
+}
+
+static GObject *
+gvc_mixer_event_role_constructor (GType type,
+ guint n_construct_properties,
+ GObjectConstructParam *construct_params)
+{
+ GObject *object;
+ GvcMixerEventRole *self;
+
+ object = G_OBJECT_CLASS (gvc_mixer_event_role_parent_class)->constructor (type, n_construct_properties, construct_params);
+
+ self = GVC_MIXER_EVENT_ROLE (object);
+
+ return object;
+}
+
+static void
+gvc_mixer_event_role_class_init (GvcMixerEventRoleClass *klass)
+{
+ GObjectClass *object_class = G_OBJECT_CLASS (klass);
+ GvcMixerStreamClass *stream_class = GVC_MIXER_STREAM_CLASS (klass);
+
+ object_class->constructor = gvc_mixer_event_role_constructor;
+ object_class->finalize = gvc_mixer_event_role_finalize;
+ object_class->set_property = gvc_mixer_event_role_set_property;
+ object_class->get_property = gvc_mixer_event_role_get_property;
+
+ stream_class->push_volume = gvc_mixer_event_role_push_volume;
+ stream_class->change_is_muted = gvc_mixer_event_role_change_is_muted;
+
+ g_object_class_install_property (object_class,
+ PROP_DEVICE,
+ g_param_spec_string ("device",
+ "Device",
+ "Device",
+ NULL,
+ G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
+
+ g_type_class_add_private (klass, sizeof (GvcMixerEventRolePrivate));
+}
+
+static void
+gvc_mixer_event_role_init (GvcMixerEventRole *event_role)
+{
+ event_role->priv = GVC_MIXER_EVENT_ROLE_GET_PRIVATE (event_role);
+
+}
+
+static void
+gvc_mixer_event_role_finalize (GObject *object)
+{
+ GvcMixerEventRole *mixer_event_role;
+
+ g_return_if_fail (object != NULL);
+ g_return_if_fail (GVC_IS_MIXER_EVENT_ROLE (object));
+
+ mixer_event_role = GVC_MIXER_EVENT_ROLE (object);
+
+ g_return_if_fail (mixer_event_role->priv != NULL);
+
+ g_free (mixer_event_role->priv->device);
+
+ G_OBJECT_CLASS (gvc_mixer_event_role_parent_class)->finalize (object);
+}
+
+GvcMixerStream *
+gvc_mixer_event_role_new (pa_context *context,
+ const char *device,
+ GvcChannelMap *channel_map)
+{
+ GObject *object;
+
+ object = g_object_new (GVC_TYPE_MIXER_EVENT_ROLE,
+ "pa-context", context,
+ "index", 0,
+ "device", device,
+ "channel-map", channel_map,
+ NULL);
+
+ return GVC_MIXER_STREAM (object);
+}