moved from Mate-Extra

1 files changed, 498 insertions, 0 deletions

diff --git a/mate-volume-control/src/gvc-mixer-card.c b/mate-volume-control/src/gvc-mixer-card.c
new file mode 100644
index 0000000..dc4ccca
--- /dev/null
+++ b/mate-volume-control/src/gvc-mixer-card.c
@@ -0,0 +1,498 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2008 William Jon McCann
+ * Copyright (C) 2009 Bastien Nocera
+ *
+ * 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 "gvc-mixer-card.h"
+
+#define GVC_MIXER_CARD_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_MIXER_CARD, GvcMixerCardPrivate))
+
+static guint32 card_serial = 1;
+
+struct GvcMixerCardPrivate
+{
+        pa_context    *pa_context;
+        guint          id;
+        guint          index;
+        char          *name;
+        char          *icon_name;
+        char          *profile;
+        char          *target_profile;
+        char          *human_profile;
+        GList         *profiles;
+        pa_operation  *profile_op;
+};
+
+enum
+{
+        PROP_0,
+        PROP_ID,
+        PROP_PA_CONTEXT,
+        PROP_INDEX,
+        PROP_NAME,
+        PROP_ICON_NAME,
+        PROP_PROFILE,
+        PROP_HUMAN_PROFILE,
+};
+
+static void     gvc_mixer_card_class_init (GvcMixerCardClass *klass);
+static void     gvc_mixer_card_init       (GvcMixerCard      *mixer_card);
+static void     gvc_mixer_card_finalize   (GObject            *object);
+
+G_DEFINE_TYPE (GvcMixerCard, gvc_mixer_card, G_TYPE_OBJECT)
+
+static guint32
+get_next_card_serial (void)
+{
+        guint32 serial;
+
+        serial = card_serial++;
+
+        if ((gint32)card_serial < 0) {
+                card_serial = 1;
+        }
+
+        return serial;
+}
+
+pa_context *
+gvc_mixer_card_get_pa_context (GvcMixerCard *card)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), 0);
+        return card->priv->pa_context;
+}
+
+guint
+gvc_mixer_card_get_index (GvcMixerCard *card)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), 0);
+        return card->priv->index;
+}
+
+guint
+gvc_mixer_card_get_id (GvcMixerCard *card)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), 0);
+        return card->priv->id;
+}
+
+const char *
+gvc_mixer_card_get_name (GvcMixerCard *card)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), NULL);
+        return card->priv->name;
+}
+
+gboolean
+gvc_mixer_card_set_name (GvcMixerCard *card,
+                         const char     *name)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), FALSE);
+
+        g_free (card->priv->name);
+        card->priv->name = g_strdup (name);
+        g_object_notify (G_OBJECT (card), "name");
+
+        return TRUE;
+}
+
+const char *
+gvc_mixer_card_get_icon_name (GvcMixerCard *card)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), NULL);
+        return card->priv->icon_name;
+}
+
+gboolean
+gvc_mixer_card_set_icon_name (GvcMixerCard *card,
+                              const char     *icon_name)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), FALSE);
+
+        g_free (card->priv->icon_name);
+        card->priv->icon_name = g_strdup (icon_name);
+        g_object_notify (G_OBJECT (card), "icon-name");
+
+        return TRUE;
+}
+
+GvcMixerCardProfile *
+gvc_mixer_card_get_profile (GvcMixerCard *card)
+{
+        GList *l;
+
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), NULL);
+        g_return_val_if_fail (card->priv->profiles != NULL, FALSE);
+
+        for (l = card->priv->profiles; l != NULL; l = l->next) {
+                GvcMixerCardProfile *p = l->data;
+                if (g_str_equal (card->priv->profile, p->profile)) {
+                        return p;
+                }
+        }
+
+        g_assert_not_reached ();
+
+        return NULL;
+}
+
+gboolean
+gvc_mixer_card_set_profile (GvcMixerCard *card,
+                            const char     *profile)
+{
+        GList *l;
+
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), FALSE);
+        g_return_val_if_fail (card->priv->profiles != NULL, FALSE);
+
+        g_free (card->priv->profile);
+        card->priv->profile = g_strdup (profile);
+
+        g_free (card->priv->human_profile);
+        card->priv->human_profile = NULL;
+
+        for (l = card->priv->profiles; l != NULL; l = l->next) {
+                GvcMixerCardProfile *p = l->data;
+                if (g_str_equal (card->priv->profile, p->profile)) {
+                        card->priv->human_profile = g_strdup (p->human_profile);
+                        break;
+                }
+        }
+
+        g_object_notify (G_OBJECT (card), "profile");
+
+        return TRUE;
+}
+
+static void
+_pa_context_set_card_profile_by_index_cb (pa_context                       *context,
+                                          int                               success,
+                                          void                             *userdata)
+{
+        GvcMixerCard *card = GVC_MIXER_CARD (userdata);
+
+        g_assert (card->priv->target_profile);
+
+        if (success > 0) {
+                gvc_mixer_card_set_profile (card, card->priv->target_profile);
+        } else {
+                g_debug ("Failed to switch profile on '%s' from '%s' to '%s'",
+                         card->priv->name,
+                         card->priv->profile,
+                         card->priv->target_profile);
+        }
+        g_free (card->priv->target_profile);
+        card->priv->target_profile = NULL;
+
+        pa_operation_unref (card->priv->profile_op);
+        card->priv->profile_op = NULL;
+}
+
+gboolean
+gvc_mixer_card_change_profile (GvcMixerCard *card,
+                               const char *profile)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), FALSE);
+        g_return_val_if_fail (card->priv->profiles != NULL, FALSE);
+
+        /* Same profile, or already requested? */
+        if (g_strcmp0 (card->priv->profile, profile) == 0)
+                return TRUE;
+        if (g_strcmp0 (profile, card->priv->target_profile) == 0)
+                return TRUE;
+        if (card->priv->profile_op != NULL) {
+                pa_operation_cancel (card->priv->profile_op);
+                pa_operation_unref (card->priv->profile_op);
+                card->priv->profile_op = NULL;
+        }
+
+        if (card->priv->profile != NULL) {
+                g_free (card->priv->target_profile);
+                card->priv->target_profile = g_strdup (profile);
+
+                card->priv->profile_op = pa_context_set_card_profile_by_index (card->priv->pa_context,
+                                                                               card->priv->index,
+                                                                               card->priv->target_profile,
+                                                                               _pa_context_set_card_profile_by_index_cb,
+                                                                               card);
+
+                if (card->priv->profile_op == NULL) {
+                        g_warning ("pa_context_set_card_profile_by_index() failed");
+                        return FALSE;
+                }
+        } else {
+                g_assert (card->priv->human_profile == NULL);
+                card->priv->profile = g_strdup (profile);
+        }
+
+        return TRUE;
+}
+
+const GList *
+gvc_mixer_card_get_profiles (GvcMixerCard *card)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), FALSE);
+        return card->priv->profiles;
+}
+
+static int
+sort_profiles (GvcMixerCardProfile *a,
+               GvcMixerCardProfile *b)
+{
+        if (a->priority == b->priority)
+                return 0;
+        if (a->priority > b->priority)
+                return 1;
+        return -1;
+}
+
+gboolean
+gvc_mixer_card_set_profiles (GvcMixerCard *card,
+                             GList        *profiles)
+{
+        g_return_val_if_fail (GVC_IS_MIXER_CARD (card), FALSE);
+        g_return_val_if_fail (card->priv->profiles == NULL, FALSE);
+
+        card->priv->profiles = g_list_sort (profiles, (GCompareFunc) sort_profiles);
+
+        return TRUE;
+}
+
+static void
+gvc_mixer_card_set_property (GObject       *object,
+                             guint          prop_id,
+                             const GValue  *value,
+                             GParamSpec    *pspec)
+{
+        GvcMixerCard *self = GVC_MIXER_CARD (object);
+
+        switch (prop_id) {
+        case PROP_PA_CONTEXT:
+                self->priv->pa_context = g_value_get_pointer (value);
+                break;
+        case PROP_INDEX:
+                self->priv->index = g_value_get_ulong (value);
+                break;
+        case PROP_ID:
+                self->priv->id = g_value_get_ulong (value);
+                break;
+        case PROP_NAME:
+                gvc_mixer_card_set_name (self, g_value_get_string (value));
+                break;
+        case PROP_ICON_NAME:
+                gvc_mixer_card_set_icon_name (self, g_value_get_string (value));
+                break;
+        case PROP_PROFILE:
+                gvc_mixer_card_set_profile (self, g_value_get_string (value));
+                break;
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                break;
+        }
+}
+
+static void
+gvc_mixer_card_get_property (GObject     *object,
+                             guint        prop_id,
+                             GValue      *value,
+                             GParamSpec  *pspec)
+{
+        GvcMixerCard *self = GVC_MIXER_CARD (object);
+
+        switch (prop_id) {
+        case PROP_PA_CONTEXT:
+                g_value_set_pointer (value, self->priv->pa_context);
+                break;
+        case PROP_INDEX:
+                g_value_set_ulong (value, self->priv->index);
+                break;
+        case PROP_ID:
+                g_value_set_ulong (value, self->priv->id);
+                break;
+        case PROP_NAME:
+                g_value_set_string (value, self->priv->name);
+                break;
+        case PROP_ICON_NAME:
+                g_value_set_string (value, self->priv->icon_name);
+                break;
+        case PROP_PROFILE:
+                g_value_set_string (value, self->priv->profile);
+                break;
+        case PROP_HUMAN_PROFILE:
+                g_value_set_string (value, self->priv->human_profile);
+                break;
+        default:
+                G_OBJECT_WARN_INVALID_PROPERTY_ID (object, prop_id, pspec);
+                break;
+        }
+}
+
+static GObject *
+gvc_mixer_card_constructor (GType                  type,
+                            guint                  n_construct_properties,
+                            GObjectConstructParam *construct_params)
+{
+        GObject       *object;
+        GvcMixerCard *self;
+
+        object = G_OBJECT_CLASS (gvc_mixer_card_parent_class)->constructor (type, n_construct_properties, construct_params);
+
+        self = GVC_MIXER_CARD (object);
+
+        self->priv->id = get_next_card_serial ();
+
+        return object;
+}
+
+static void
+gvc_mixer_card_class_init (GvcMixerCardClass *klass)
+{
+        GObjectClass   *gobject_class = G_OBJECT_CLASS (klass);
+
+        gobject_class->constructor = gvc_mixer_card_constructor;
+        gobject_class->finalize = gvc_mixer_card_finalize;
+
+        gobject_class->set_property = gvc_mixer_card_set_property;
+        gobject_class->get_property = gvc_mixer_card_get_property;
+
+        g_object_class_install_property (gobject_class,
+                                         PROP_INDEX,
+                                         g_param_spec_ulong ("index",
+                                                             "Index",
+                                                             "The index for this card",
+                                                             0, G_MAXULONG, 0,
+                                                             G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
+        g_object_class_install_property (gobject_class,
+                                         PROP_ID,
+                                         g_param_spec_ulong ("id",
+                                                             "id",
+                                                             "The id for this card",
+                                                             0, G_MAXULONG, 0,
+                                                             G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
+        g_object_class_install_property (gobject_class,
+                                         PROP_PA_CONTEXT,
+                                         g_param_spec_pointer ("pa-context",
+                                                               "PulseAudio context",
+                                                               "The PulseAudio context for this card",
+                                                               G_PARAM_READWRITE|G_PARAM_CONSTRUCT_ONLY));
+        g_object_class_install_property (gobject_class,
+                                         PROP_NAME,
+                                         g_param_spec_string ("name",
+                                                              "Name",
+                                                              "Name to display for this card",
+                                                              NULL,
+                                                              G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
+        g_object_class_install_property (gobject_class,
+                                         PROP_ICON_NAME,
+                                         g_param_spec_string ("icon-name",
+                                                              "Icon Name",
+                                                              "Name of icon to display for this card",
+                                                              NULL,
+                                                              G_PARAM_READWRITE|G_PARAM_CONSTRUCT));
+        g_object_class_install_property (gobject_class,
+                                         PROP_PROFILE,
+                                         g_param_spec_string ("profile",
+                                                              "Profile",
+                                                              "Name of current profile for this card",
+                                                              NULL,
+                                                              G_PARAM_READWRITE));
+        g_object_class_install_property (gobject_class,
+                                         PROP_HUMAN_PROFILE,
+                                         g_param_spec_string ("human-profile",
+                                                              "Profile (Human readable)",
+                                                              "Name of current profile for this card in human readable form",
+                                                              NULL,
+                                                              G_PARAM_READABLE));
+
+        g_type_class_add_private (klass, sizeof (GvcMixerCardPrivate));
+}
+
+static void
+gvc_mixer_card_init (GvcMixerCard *card)
+{
+        card->priv = GVC_MIXER_CARD_GET_PRIVATE (card);
+}
+
+GvcMixerCard *
+gvc_mixer_card_new (pa_context *context,
+                    guint       index)
+{
+        GObject *object;
+
+        object = g_object_new (GVC_TYPE_MIXER_CARD,
+                               "index", index,
+                               "pa-context", context,
+                               NULL);
+        return GVC_MIXER_CARD (object);
+}
+
+static void
+free_profile (GvcMixerCardProfile *p)
+{
+        g_free (p->profile);
+        g_free (p->human_profile);
+        g_free (p->status);
+        g_free (p);
+}
+
+static void
+gvc_mixer_card_finalize (GObject *object)
+{
+        GvcMixerCard *mixer_card;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GVC_IS_MIXER_CARD (object));
+
+        mixer_card = GVC_MIXER_CARD (object);
+
+        g_return_if_fail (mixer_card->priv != NULL);
+
+        g_free (mixer_card->priv->name);
+        mixer_card->priv->name = NULL;
+
+        g_free (mixer_card->priv->icon_name);
+        mixer_card->priv->icon_name = NULL;
+
+        g_free (mixer_card->priv->target_profile);
+        mixer_card->priv->target_profile = NULL;
+
+        g_free (mixer_card->priv->profile);
+        mixer_card->priv->profile = NULL;
+
+        g_free (mixer_card->priv->human_profile);
+        mixer_card->priv->human_profile = NULL;
+
+        g_list_foreach (mixer_card->priv->profiles, (GFunc) free_profile, NULL);
+        g_list_free (mixer_card->priv->profiles);
+        mixer_card->priv->profiles = NULL;
+
+        G_OBJECT_CLASS (gvc_mixer_card_parent_class)->finalize (object);
+}
+