moved from Mate-Extra

1 files changed, 1191 insertions, 0 deletions

diff --git a/sound-theme/gvc-sound-theme-chooser.c b/sound-theme/gvc-sound-theme-chooser.c
new file mode 100644
index 0000000..75f23bb
--- /dev/null
+++ b/sound-theme/gvc-sound-theme-chooser.c
@@ -0,0 +1,1191 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 8 -*-
+ *
+ * Copyright (C) 2008 Bastien Nocera <[email protected]>
+ * 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 <utime.h>
+#include <errno.h>
+
+#include <glib.h>
+#include <glib/gi18n.h>
+#include <gtk/gtk.h>
+#include <canberra-gtk.h>
+#include <libxml/tree.h>
+
+#include <mateconf/mateconf-client.h>
+
+#include "gvc-sound-theme-chooser.h"
+#include "sound-theme-file-utils.h"
+
+#define GVC_SOUND_THEME_CHOOSER_GET_PRIVATE(o) (G_TYPE_INSTANCE_GET_PRIVATE ((o), GVC_TYPE_SOUND_THEME_CHOOSER, GvcSoundThemeChooserPrivate))
+
+struct GvcSoundThemeChooserPrivate
+{
+        GtkWidget *combo_box;
+        GtkWidget *treeview;
+        GtkWidget *theme_box;
+        GtkWidget *selection_box;
+        GtkWidget *click_feedback_button;
+        MateConfClient *client;
+        guint sounds_dir_id;
+        guint marco_dir_id;
+};
+
+static void     gvc_sound_theme_chooser_class_init (GvcSoundThemeChooserClass *klass);
+static void     gvc_sound_theme_chooser_init       (GvcSoundThemeChooser      *sound_theme_chooser);
+static void     gvc_sound_theme_chooser_finalize   (GObject            *object);
+
+G_DEFINE_TYPE (GvcSoundThemeChooser, gvc_sound_theme_chooser, GTK_TYPE_VBOX)
+
+#define KEY_SOUNDS_DIR             "/desktop/mate/sound"
+#define EVENT_SOUNDS_KEY           KEY_SOUNDS_DIR "/event_sounds"
+#define INPUT_SOUNDS_KEY           KEY_SOUNDS_DIR "/input_feedback_sounds"
+#define SOUND_THEME_KEY            KEY_SOUNDS_DIR "/theme_name"
+#define KEY_MARCO_DIR           "/apps/marco/general"
+#define AUDIO_BELL_KEY             KEY_MARCO_DIR "/audible_bell"
+
+#define DEFAULT_ALERT_ID        "__default"
+#define CUSTOM_THEME_NAME       "__custom"
+#define NO_SOUNDS_THEME_NAME    "__no_sounds"
+
+enum {
+        THEME_DISPLAY_COL,
+        THEME_IDENTIFIER_COL,
+        THEME_PARENT_ID_COL,
+        THEME_NUM_COLS
+};
+
+enum {
+        ALERT_DISPLAY_COL,
+        ALERT_IDENTIFIER_COL,
+        ALERT_SOUND_TYPE_COL,
+        ALERT_ACTIVE_COL,
+        ALERT_NUM_COLS
+};
+
+enum {
+        SOUND_TYPE_UNSET,
+        SOUND_TYPE_OFF,
+        SOUND_TYPE_DEFAULT_FROM_THEME,
+        SOUND_TYPE_BUILTIN,
+        SOUND_TYPE_CUSTOM
+};
+
+static void
+on_combobox_changed (GtkComboBox          *widget,
+                     GvcSoundThemeChooser *chooser)
+{
+        GtkTreeIter   iter;
+        GtkTreeModel *model;
+        char         *theme_name;
+
+        if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (chooser->priv->combo_box), &iter) == FALSE) {
+                return;
+        }
+
+        model = gtk_combo_box_get_model (GTK_COMBO_BOX (chooser->priv->combo_box));
+        gtk_tree_model_get (model, &iter, THEME_IDENTIFIER_COL, &theme_name, -1);
+
+        g_assert (theme_name != NULL);
+
+        /* special case for no sounds */
+        if (strcmp (theme_name, NO_SOUNDS_THEME_NAME) == 0) {
+                mateconf_client_set_bool (chooser->priv->client, EVENT_SOUNDS_KEY, FALSE, NULL);
+                return;
+        } else {
+                mateconf_client_set_bool (chooser->priv->client, EVENT_SOUNDS_KEY, TRUE, NULL);
+        }
+
+        mateconf_client_set_string (chooser->priv->client, SOUND_THEME_KEY, theme_name, NULL);
+
+        g_free (theme_name);
+
+        /* FIXME: reset alert model */
+}
+
+static char *
+load_index_theme_name (const char *index,
+                       char      **parent)
+{
+        GKeyFile *file;
+        char *indexname = NULL;
+        gboolean hidden;
+
+        file = g_key_file_new ();
+        if (g_key_file_load_from_file (file, index, G_KEY_FILE_KEEP_TRANSLATIONS, NULL) == FALSE) {
+                g_key_file_free (file);
+                return NULL;
+        }
+        /* Don't add hidden themes to the list */
+        hidden = g_key_file_get_boolean (file, "Sound Theme", "Hidden", NULL);
+        if (!hidden) {
+                indexname = g_key_file_get_locale_string (file,
+                                                          "Sound Theme",
+                                                          "Name",
+                                                          NULL,
+                                                          NULL);
+
+                /* Save the parent theme, if there's one */
+                if (parent != NULL) {
+                        *parent = g_key_file_get_string (file,
+                                                         "Sound Theme",
+                                                         "Inherits",
+                                                         NULL);
+                }
+        }
+
+        g_key_file_free (file);
+        return indexname;
+}
+
+static void
+sound_theme_in_dir (GHashTable *hash,
+                    const char *dir)
+{
+        GDir *d;
+        const char *name;
+
+        d = g_dir_open (dir, 0, NULL);
+        if (d == NULL) {
+                return;
+        }
+
+        while ((name = g_dir_read_name (d)) != NULL) {
+                char *dirname, *index, *indexname;
+
+                /* Look for directories */
+                dirname = g_build_filename (dir, name, NULL);
+                if (g_file_test (dirname, G_FILE_TEST_IS_DIR) == FALSE) {
+                        g_free (dirname);
+                        continue;
+                }
+
+                /* Look for index files */
+                index = g_build_filename (dirname, "index.theme", NULL);
+                g_free (dirname);
+
+                /* Check the name of the theme in the index.theme file */
+                indexname = load_index_theme_name (index, NULL);
+                g_free (index);
+                if (indexname == NULL) {
+                        continue;
+                }
+
+                g_hash_table_insert (hash, g_strdup (name), indexname);
+        }
+
+        g_dir_close (d);
+}
+
+static void
+add_theme_to_store (const char   *key,
+                    const char   *value,
+                    GtkListStore *store)
+{
+        char *parent;
+
+        parent = NULL;
+
+        /* Get the parent, if we're checking the custom theme */
+        if (strcmp (key, CUSTOM_THEME_NAME) == 0) {
+                char *name, *path;
+
+                path = custom_theme_dir_path ("index.theme");
+                name = load_index_theme_name (path, &parent);
+                g_free (name);
+                g_free (path);
+        }
+        gtk_list_store_insert_with_values (store, NULL, G_MAXINT,
+                                           THEME_DISPLAY_COL, value,
+                                           THEME_IDENTIFIER_COL, key,
+                                           THEME_PARENT_ID_COL, parent,
+                                           -1);
+        g_free (parent);
+}
+
+static void
+set_combox_for_theme_name (GvcSoundThemeChooser *chooser,
+                           const char           *name)
+{
+        GtkTreeIter   iter;
+        GtkTreeModel *model;
+        gboolean      found;
+
+        /* If the name is empty, use "freedesktop" */
+        if (name == NULL || *name == '\0') {
+                name = "freedesktop";
+        }
+
+        model = gtk_combo_box_get_model (GTK_COMBO_BOX (chooser->priv->combo_box));
+
+        if (gtk_tree_model_get_iter_first (model, &iter) == FALSE) {
+                return;
+        }
+
+        do {
+                char *value;
+
+                gtk_tree_model_get (model, &iter, THEME_IDENTIFIER_COL, &value, -1);
+                found = (value != NULL && strcmp (value, name) == 0);
+                g_free (value);
+
+        } while (!found && gtk_tree_model_iter_next (model, &iter));
+
+        /* When we can't find the theme we need to set, try to set the default
+         * one "freedesktop" */
+        if (found) {
+                gtk_combo_box_set_active_iter (GTK_COMBO_BOX (chooser->priv->combo_box), &iter);
+        } else if (strcmp (name, "freedesktop") != 0) {
+                g_debug ("not found, falling back to fdo");
+                set_combox_for_theme_name (chooser, "freedesktop");
+        }
+}
+
+static void
+set_input_feedback_enabled (GvcSoundThemeChooser *chooser,
+                            gboolean              enabled)
+{
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (chooser->priv->click_feedback_button),
+                                      enabled);
+}
+
+static void
+setup_theme_selector (GvcSoundThemeChooser *chooser)
+{
+        GHashTable           *hash;
+        GtkListStore         *store;
+        GtkCellRenderer      *renderer;
+        const char * const   *data_dirs;
+        const char           *data_dir;
+        char                 *dir;
+        guint                 i;
+
+        /* Add the theme names and their display name to a hash table,
+         * makes it easy to avoid duplicate themes */
+        hash = g_hash_table_new_full (g_str_hash, g_str_equal, g_free, g_free);
+
+        data_dirs = g_get_system_data_dirs ();
+        for (i = 0; data_dirs[i] != NULL; i++) {
+                dir = g_build_filename (data_dirs[i], "sounds", NULL);
+                sound_theme_in_dir (hash, dir);
+                g_free (dir);
+        }
+
+        data_dir = g_get_user_data_dir ();
+        dir = g_build_filename (data_dir, "sounds", NULL);
+        sound_theme_in_dir (hash, dir);
+        g_free (dir);
+
+        /* If there isn't at least one theme, make everything
+         * insensitive, LAME! */
+        if (g_hash_table_size (hash) == 0) {
+                gtk_widget_set_sensitive (GTK_WIDGET (chooser), FALSE);
+                g_warning ("Bad setup, install the freedesktop sound theme");
+                g_hash_table_destroy (hash);
+                return;
+        }
+
+        /* Setup the tree model, 3 columns:
+         * - internal theme name/directory
+         * - display theme name
+         * - the internal id for the parent theme, used for the custom theme */
+        store = gtk_list_store_new (THEME_NUM_COLS,
+                                    G_TYPE_STRING,
+                                    G_TYPE_STRING,
+                                    G_TYPE_STRING);
+
+        /* Add the themes to a combobox */
+        gtk_list_store_insert_with_values (store,
+                                           NULL,
+                                           G_MAXINT,
+                                           THEME_DISPLAY_COL, _("No sounds"),
+                                           THEME_IDENTIFIER_COL, "__no_sounds",
+                                           THEME_PARENT_ID_COL, NULL,
+                                           -1);
+        g_hash_table_foreach (hash, (GHFunc) add_theme_to_store, store);
+        g_hash_table_destroy (hash);
+
+        /* Set the display */
+        gtk_combo_box_set_model (GTK_COMBO_BOX (chooser->priv->combo_box),
+                                 GTK_TREE_MODEL (store));
+
+        renderer = gtk_cell_renderer_text_new ();
+        gtk_cell_layout_pack_start (GTK_CELL_LAYOUT (chooser->priv->combo_box),
+                                    renderer,
+                                    TRUE);
+        gtk_cell_layout_set_attributes (GTK_CELL_LAYOUT (chooser->priv->combo_box),
+                                        renderer,
+                                        "text", THEME_DISPLAY_COL,
+                                        NULL);
+
+        g_signal_connect (chooser->priv->combo_box,
+                          "changed",
+                          G_CALLBACK (on_combobox_changed),
+                          chooser);
+}
+
+#define GVC_SOUND_SOUND    (xmlChar *) "sound"
+#define GVC_SOUND_NAME     (xmlChar *) "name"
+#define GVC_SOUND_FILENAME (xmlChar *) "filename"
+
+/* Adapted from yelp-toc-pager.c */
+static xmlChar *
+xml_get_and_trim_names (xmlNodePtr node)
+{
+        xmlNodePtr cur, keep = NULL;
+        xmlChar *keep_lang = NULL;
+        xmlChar *value;
+        int j, keep_pri = INT_MAX;
+
+        const gchar * const * langs = g_get_language_names ();
+
+        value = NULL;
+
+        for (cur = node->children; cur; cur = cur->next) {
+                if (! xmlStrcmp (cur->name, GVC_SOUND_NAME)) {
+                        xmlChar *cur_lang = NULL;
+                        int cur_pri = INT_MAX;
+
+                        cur_lang = xmlNodeGetLang (cur);
+
+                        if (cur_lang) {
+                                for (j = 0; langs[j]; j++) {
+                                        if (g_str_equal (cur_lang, langs[j])) {
+                                                cur_pri = j;
+                                                break;
+                                        }
+                                }
+                        } else {
+                                cur_pri = INT_MAX - 1;
+                        }
+
+                        if (cur_pri <= keep_pri) {
+                                if (keep_lang)
+                                        xmlFree (keep_lang);
+                                if (value)
+                                        xmlFree (value);
+
+                                value = xmlNodeGetContent (cur);
+
+                                keep_lang = cur_lang;
+                                keep_pri = cur_pri;
+                                keep = cur;
+                        } else {
+                                if (cur_lang)
+                                        xmlFree (cur_lang);
+                        }
+                }
+        }
+
+        /* Delete all GVC_SOUND_NAME nodes */
+        cur = node->children;
+        while (cur) {
+                xmlNodePtr this = cur;
+                cur = cur->next;
+                if (! xmlStrcmp (this->name, GVC_SOUND_NAME)) {
+                        xmlUnlinkNode (this);
+                        xmlFreeNode (this);
+                }
+        }
+
+        return value;
+}
+
+static void
+populate_model_from_node (GvcSoundThemeChooser *chooser,
+                          GtkTreeModel         *model,
+                          xmlNodePtr            node)
+{
+        xmlNodePtr child;
+        xmlChar   *filename;
+        xmlChar   *name;
+
+        filename = NULL;
+        name = xml_get_and_trim_names (node);
+        for (child = node->children; child; child = child->next) {
+                if (xmlNodeIsText (child)) {
+                        continue;
+                }
+
+                if (xmlStrcmp (child->name, GVC_SOUND_FILENAME) == 0) {
+                        filename = xmlNodeGetContent (child);
+                } else if (xmlStrcmp (child->name, GVC_SOUND_NAME) == 0) {
+                        /* EH? should have been trimmed */
+                }
+        }
+
+        if (filename != NULL && name != NULL) {
+                gtk_list_store_insert_with_values (GTK_LIST_STORE (model),
+                                                   NULL,
+                                                   G_MAXINT,
+                                                   ALERT_IDENTIFIER_COL, filename,
+                                                   ALERT_DISPLAY_COL, name,
+                                                   ALERT_SOUND_TYPE_COL, _("Built-in"),
+                                                   ALERT_ACTIVE_COL, FALSE,
+                                                   -1);
+        }
+
+        xmlFree (filename);
+        xmlFree (name);
+}
+
+static void
+populate_model_from_file (GvcSoundThemeChooser *chooser,
+                          GtkTreeModel         *model,
+                          const char           *filename)
+{
+        xmlDocPtr  doc;
+        xmlNodePtr root;
+        xmlNodePtr child;
+        gboolean   exists;
+
+        exists = g_file_test (filename, G_FILE_TEST_EXISTS);
+        if (! exists) {
+                return;
+        }
+
+        doc = xmlParseFile (filename);
+        if (doc == NULL) {
+                return;
+        }
+
+        root = xmlDocGetRootElement (doc);
+
+        for (child = root->children; child; child = child->next) {
+                if (xmlNodeIsText (child)) {
+                        continue;
+                }
+                if (xmlStrcmp (child->name, GVC_SOUND_SOUND) != 0) {
+                        continue;
+                }
+
+                populate_model_from_node (chooser, model, child);
+        }
+
+        xmlFreeDoc (doc);
+}
+
+static void
+populate_model_from_dir (GvcSoundThemeChooser *chooser,
+                         GtkTreeModel         *model,
+                         const char           *dirname)
+{
+        GDir       *d;
+        const char *name;
+
+        d = g_dir_open (dirname, 0, NULL);
+        if (d == NULL) {
+                return;
+        }
+
+        while ((name = g_dir_read_name (d)) != NULL) {
+                char *path;
+
+                if (! g_str_has_suffix (name, ".xml")) {
+                        continue;
+                }
+
+                path = g_build_filename (dirname, name, NULL);
+                populate_model_from_file (chooser, model, path);
+                g_free (path);
+        }
+}
+
+static gboolean
+save_alert_sounds (GvcSoundThemeChooser  *chooser,
+                   const char            *id)
+{
+        const char *sounds[3] = { "bell-terminal", "bell-window-system", NULL };
+        char *path;
+
+        if (strcmp (id, DEFAULT_ALERT_ID) == 0) {
+                delete_old_files (sounds);
+                delete_disabled_files (sounds);
+        } else {
+                delete_old_files (sounds);
+                delete_disabled_files (sounds);
+                add_custom_file (sounds, id);
+        }
+
+        /* And poke the directory so the theme gets updated */
+        path = custom_theme_dir_path (NULL);
+        if (utime (path, NULL) != 0) {
+                g_warning ("Failed to update mtime for directory '%s': %s",
+                           path, g_strerror (errno));
+        }
+        g_free (path);
+
+        return FALSE;
+}
+
+
+static void
+update_alert_model (GvcSoundThemeChooser  *chooser,
+                    const char            *id)
+{
+        GtkTreeModel *model;
+        GtkTreeIter   iter;
+
+        model = gtk_tree_view_get_model (GTK_TREE_VIEW (chooser->priv->treeview));
+        gtk_tree_model_get_iter_first (model, &iter);
+        do {
+                gboolean toggled;
+                char    *this_id;
+
+                gtk_tree_model_get (model, &iter,
+                                    ALERT_IDENTIFIER_COL, &this_id,
+                                    -1);
+
+                if (strcmp (this_id, id) == 0) {
+                        toggled = TRUE;
+                } else {
+                        toggled = FALSE;
+                }
+                g_free (this_id);
+
+                gtk_list_store_set (GTK_LIST_STORE (model),
+                                    &iter,
+                                    ALERT_ACTIVE_COL, toggled,
+                                    -1);
+        } while (gtk_tree_model_iter_next (model, &iter));
+}
+
+static void
+update_alert (GvcSoundThemeChooser *chooser,
+              const char           *alert_id)
+{
+        GtkTreeModel *theme_model;
+        GtkTreeIter   iter;
+        char         *theme;
+        char         *parent;
+        gboolean      is_custom;
+        gboolean      is_default;
+        gboolean      add_custom;
+        gboolean      remove_custom;
+
+        theme_model = gtk_combo_box_get_model (GTK_COMBO_BOX (chooser->priv->combo_box));
+        /* Get the current theme's name, and set the parent */
+        if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (chooser->priv->combo_box), &iter) == FALSE) {
+                return;
+        }
+
+        gtk_tree_model_get (theme_model, &iter,
+                            THEME_IDENTIFIER_COL, &theme,
+                            THEME_IDENTIFIER_COL, &parent,
+                            -1);
+        is_custom = strcmp (theme, CUSTOM_THEME_NAME) == 0;
+        is_default = strcmp (alert_id, DEFAULT_ALERT_ID) == 0;
+
+        /* So a few possibilities:
+         * 1. Named theme, default alert selected: noop
+         * 2. Named theme, alternate alert selected: create new custom with sound
+         * 3. Custom theme, default alert selected: remove sound and possibly custom
+         * 4. Custom theme, alternate alert selected: update custom sound
+         */
+        add_custom = FALSE;
+        remove_custom = FALSE;
+        if (! is_custom && is_default) {
+                /* remove custom just in case */
+                remove_custom = TRUE;
+        } else if (! is_custom && ! is_default) {
+                create_custom_theme (parent);
+                save_alert_sounds (chooser, alert_id);
+                add_custom = TRUE;
+        } else if (is_custom && is_default) {
+                save_alert_sounds (chooser, alert_id);
+                /* after removing files check if it is empty */
+                if (custom_theme_dir_is_empty ()) {
+                        remove_custom = TRUE;
+                }
+        } else if (is_custom && ! is_default) {
+                save_alert_sounds (chooser, alert_id);
+        }
+
+        if (add_custom) {
+                gtk_list_store_insert_with_values (GTK_LIST_STORE (theme_model),
+                                                   NULL,
+                                                   G_MAXINT,
+                                                   THEME_DISPLAY_COL, _("Custom"),
+                                                   THEME_IDENTIFIER_COL, CUSTOM_THEME_NAME,
+                                                   THEME_PARENT_ID_COL, theme,
+                                                   -1);
+                set_combox_for_theme_name (chooser, CUSTOM_THEME_NAME);
+        } else if (remove_custom) {
+                gtk_tree_model_get_iter_first (theme_model, &iter);
+                do {
+                        char *this_parent;
+
+                        gtk_tree_model_get (theme_model, &iter,
+                                            THEME_PARENT_ID_COL, &this_parent,
+                                            -1);
+                        if (this_parent != NULL && strcmp (this_parent, CUSTOM_THEME_NAME) != 0) {
+                                g_free (this_parent);
+                                gtk_list_store_remove (GTK_LIST_STORE (theme_model), &iter);
+                                break;
+                        }
+                        g_free (this_parent);
+                } while (gtk_tree_model_iter_next (theme_model, &iter));
+
+                delete_custom_theme_dir ();
+
+                set_combox_for_theme_name (chooser, parent);
+        }
+
+        update_alert_model (chooser, alert_id);
+
+        g_free (theme);
+        g_free (parent);
+}
+
+static void
+on_alert_toggled (GtkCellRendererToggle *renderer,
+                  char                  *path_str,
+                  GvcSoundThemeChooser  *chooser)
+{
+        GtkTreeModel *model;
+        GtkTreeIter   iter;
+        GtkTreePath  *path;
+        gboolean      toggled;
+        char         *id;
+
+        model = gtk_tree_view_get_model (GTK_TREE_VIEW (chooser->priv->treeview));
+
+        path = gtk_tree_path_new_from_string (path_str);
+        gtk_tree_model_get_iter (model, &iter, path);
+        gtk_tree_path_free (path);
+
+        id = NULL;
+        gtk_tree_model_get (model, &iter,
+                            ALERT_IDENTIFIER_COL, &id,
+                            ALERT_ACTIVE_COL, &toggled,
+                            -1);
+
+        toggled ^= 1;
+        if (toggled) {
+                update_alert (chooser, id);
+        }
+
+        g_free (id);
+}
+
+static void
+play_preview_for_path (GvcSoundThemeChooser *chooser,
+                       GtkTreePath          *path)
+{
+        GtkTreeModel *model;
+        GtkTreeIter   iter;
+        GtkTreeIter   theme_iter;
+        char         *id;
+        char         *parent_theme;
+
+        model = gtk_tree_view_get_model (GTK_TREE_VIEW (chooser->priv->treeview));
+        if (gtk_tree_model_get_iter (model, &iter, path) == FALSE) {
+                return;
+        }
+
+        id = NULL;
+        gtk_tree_model_get (model, &iter,
+                            ALERT_IDENTIFIER_COL, &id,
+                            -1);
+        if (id == NULL) {
+                return;
+        }
+
+        parent_theme = NULL;
+        if (gtk_combo_box_get_active_iter (GTK_COMBO_BOX (chooser->priv->combo_box), &theme_iter)) {
+                GtkTreeModel *theme_model;
+                char         *theme_id;
+                char         *parent_id;
+
+                theme_model = gtk_combo_box_get_model (GTK_COMBO_BOX (chooser->priv->combo_box));
+                theme_id = NULL;
+                parent_id = NULL;
+                gtk_tree_model_get (theme_model, &theme_iter,
+                                    THEME_IDENTIFIER_COL, &theme_id,
+                                    THEME_PARENT_ID_COL, &parent_id, -1);
+                if (theme_id && strcmp (theme_id, CUSTOM_THEME_NAME) == 0) {
+                        parent_theme = g_strdup (parent_id);
+                }
+                g_free (theme_id);
+                g_free (parent_id);
+        }
+
+        /* special case: for the default item on custom themes
+         * play the alert for the parent theme */
+        if (strcmp (id, DEFAULT_ALERT_ID) == 0) {
+                if (parent_theme != NULL) {
+                        ca_gtk_play_for_widget (GTK_WIDGET (chooser), 0,
+                                                CA_PROP_APPLICATION_NAME, _("Sound Preferences"),
+                                                CA_PROP_EVENT_ID, "bell-window-system",
+                                                CA_PROP_CANBERRA_XDG_THEME_NAME, parent_theme,
+                                                CA_PROP_EVENT_DESCRIPTION, _("Testing event sound"),
+                                                CA_PROP_CANBERRA_CACHE_CONTROL, "never",
+                                                CA_PROP_APPLICATION_ID, "org.mate.VolumeControl",
+#ifdef CA_PROP_CANBERRA_ENABLE
+                                                CA_PROP_CANBERRA_ENABLE, "1",
+#endif
+                                                NULL);
+                } else {
+                        ca_gtk_play_for_widget (GTK_WIDGET (chooser), 0,
+                                                CA_PROP_APPLICATION_NAME, _("Sound Preferences"),
+                                                CA_PROP_EVENT_ID, "bell-window-system",
+                                                CA_PROP_EVENT_DESCRIPTION, _("Testing event sound"),
+                                                CA_PROP_CANBERRA_CACHE_CONTROL, "never",
+                                                CA_PROP_APPLICATION_ID, "org.mate.VolumeControl",
+#ifdef CA_PROP_CANBERRA_ENABLE
+                                                CA_PROP_CANBERRA_ENABLE, "1",
+#endif
+                                                NULL);
+                }
+        } else {
+                ca_gtk_play_for_widget (GTK_WIDGET (chooser), 0,
+                                        CA_PROP_APPLICATION_NAME, _("Sound Preferences"),
+                                        CA_PROP_MEDIA_FILENAME, id,
+                                        CA_PROP_EVENT_DESCRIPTION, _("Testing event sound"),
+                                        CA_PROP_CANBERRA_CACHE_CONTROL, "never",
+                                        CA_PROP_APPLICATION_ID, "org.mate.VolumeControl",
+#ifdef CA_PROP_CANBERRA_ENABLE
+                                        CA_PROP_CANBERRA_ENABLE, "1",
+#endif
+                                        NULL);
+
+        }
+        g_free (parent_theme);
+        g_free (id);
+}
+
+static void
+on_treeview_row_activated (GtkTreeView          *treeview,
+                           GtkTreePath          *path,
+                           GtkTreeViewColumn    *column,
+                           GvcSoundThemeChooser *chooser)
+{
+        play_preview_for_path (chooser, path);
+}
+
+static void
+on_treeview_selection_changed (GtkTreeSelection     *selection,
+                               GvcSoundThemeChooser *chooser)
+{
+        GList        *paths;
+        GtkTreeModel *model;
+        GtkTreePath  *path;
+
+        if (chooser->priv->treeview == NULL) {
+                return;
+        }
+
+        model = gtk_tree_view_get_model (GTK_TREE_VIEW (chooser->priv->treeview));
+
+        paths = gtk_tree_selection_get_selected_rows (selection, &model);
+        if (paths == NULL) {
+                return;
+        }
+
+        path = paths->data;
+        play_preview_for_path (chooser, path);
+
+        g_list_foreach (paths, (GFunc)gtk_tree_path_free, NULL);
+        g_list_free (paths);
+}
+
+static GtkWidget *
+create_alert_treeview (GvcSoundThemeChooser *chooser)
+{
+        GtkListStore         *store;
+        GtkWidget            *treeview;
+        GtkCellRenderer      *renderer;
+        GtkTreeViewColumn    *column;
+        GtkTreeSelection     *selection;
+
+        treeview = gtk_tree_view_new ();
+        g_signal_connect (treeview,
+                          "row-activated",
+                          G_CALLBACK (on_treeview_row_activated),
+                          chooser);
+
+        selection = gtk_tree_view_get_selection (GTK_TREE_VIEW (treeview));
+        gtk_tree_selection_set_mode (selection, GTK_SELECTION_SINGLE);
+        g_signal_connect (selection,
+                          "changed",
+                          G_CALLBACK (on_treeview_selection_changed),
+                          chooser);
+
+        /* Setup the tree model, 3 columns:
+         * - display name
+         * - sound id
+         * - sound type
+         */
+        store = gtk_list_store_new (ALERT_NUM_COLS,
+                                    G_TYPE_STRING,
+                                    G_TYPE_STRING,
+                                    G_TYPE_STRING,
+                                    G_TYPE_BOOLEAN);
+
+        gtk_list_store_insert_with_values (store,
+                                           NULL,
+                                           G_MAXINT,
+                                           ALERT_IDENTIFIER_COL, DEFAULT_ALERT_ID,
+                                           ALERT_DISPLAY_COL, _("Default"),
+                                           ALERT_SOUND_TYPE_COL, _("From theme"),
+                                           ALERT_ACTIVE_COL, TRUE,
+                                           -1);
+
+        populate_model_from_dir (chooser, GTK_TREE_MODEL (store), SOUND_SET_DIR);
+
+        gtk_tree_view_set_model (GTK_TREE_VIEW (treeview),
+                                 GTK_TREE_MODEL (store));
+
+        renderer = gtk_cell_renderer_toggle_new ();
+        gtk_cell_renderer_toggle_set_radio (GTK_CELL_RENDERER_TOGGLE (renderer),
+                                            TRUE);
+        column = gtk_tree_view_column_new_with_attributes (NULL,
+                                                           renderer,
+                                                           "active", ALERT_ACTIVE_COL,
+                                                           NULL);
+        gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+        g_signal_connect (renderer,
+                          "toggled",
+                          G_CALLBACK (on_alert_toggled),
+                          chooser);
+
+        renderer = gtk_cell_renderer_text_new ();
+        column = gtk_tree_view_column_new_with_attributes (_("Name"),
+                                                           renderer,
+                                                           "text", ALERT_DISPLAY_COL,
+                                                           NULL);
+        gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+        renderer = gtk_cell_renderer_text_new ();
+        column = gtk_tree_view_column_new_with_attributes (_("Type"),
+                                                           renderer,
+                                                           "text", ALERT_SOUND_TYPE_COL,
+                                                           NULL);
+        gtk_tree_view_append_column (GTK_TREE_VIEW (treeview), column);
+
+        return treeview;
+}
+
+static int
+get_file_type (const char *sound_name,
+               char      **linked_name)
+{
+        char *name, *filename;
+
+        *linked_name = NULL;
+
+        name = g_strdup_printf ("%s.disabled", sound_name);
+        filename = custom_theme_dir_path (name);
+        g_free (name);
+
+        if (g_file_test (filename, G_FILE_TEST_IS_REGULAR) != FALSE) {
+                g_free (filename);
+                return SOUND_TYPE_OFF;
+        }
+        g_free (filename);
+
+        /* We only check for .ogg files because those are the
+         * only ones we create */
+        name = g_strdup_printf ("%s.ogg", sound_name);
+        filename = custom_theme_dir_path (name);
+        g_free (name);
+
+        if (g_file_test (filename, G_FILE_TEST_IS_SYMLINK) != FALSE) {
+                *linked_name = g_file_read_link (filename, NULL);
+                g_free (filename);
+                return SOUND_TYPE_CUSTOM;
+        }
+        g_free (filename);
+
+        return SOUND_TYPE_BUILTIN;
+}
+
+static void
+update_alerts_from_theme_name (GvcSoundThemeChooser *chooser,
+                               const char           *name)
+{
+        if (strcmp (name, CUSTOM_THEME_NAME) != 0) {
+                /* reset alert to default */
+                update_alert (chooser, DEFAULT_ALERT_ID);
+        } else {
+                int   sound_type;
+                char *linkname;
+
+                linkname = NULL;
+                sound_type = get_file_type ("bell-terminal", &linkname);
+                g_debug ("Found link: %s", linkname);
+                if (sound_type == SOUND_TYPE_CUSTOM) {
+                        update_alert (chooser, linkname);
+                }
+        }
+}
+
+static void
+update_theme (GvcSoundThemeChooser *chooser)
+{
+        char        *theme_name;
+        gboolean     events_enabled;
+        gboolean     bell_enabled;
+        gboolean     feedback_enabled;
+
+        bell_enabled = mateconf_client_get_bool (chooser->priv->client, AUDIO_BELL_KEY, NULL);
+        //set_audible_bell_enabled (chooser, bell_enabled);
+
+        feedback_enabled = mateconf_client_get_bool (chooser->priv->client, INPUT_SOUNDS_KEY, NULL);
+        set_input_feedback_enabled (chooser, feedback_enabled);
+
+        events_enabled = mateconf_client_get_bool (chooser->priv->client, EVENT_SOUNDS_KEY, NULL);
+        if (events_enabled) {
+                theme_name = mateconf_client_get_string (chooser->priv->client, SOUND_THEME_KEY, NULL);
+        } else {
+                theme_name = g_strdup (NO_SOUNDS_THEME_NAME);
+        }
+
+        gtk_widget_set_sensitive (chooser->priv->selection_box, events_enabled);
+        gtk_widget_set_sensitive (chooser->priv->click_feedback_button, events_enabled);
+
+        set_combox_for_theme_name (chooser, theme_name);
+
+        update_alerts_from_theme_name (chooser, theme_name);
+
+        g_free (theme_name);
+}
+
+static GObject *
+gvc_sound_theme_chooser_constructor (GType                  type,
+                                     guint                  n_construct_properties,
+                                     GObjectConstructParam *construct_params)
+{
+        GObject              *object;
+        GvcSoundThemeChooser *self;
+
+        object = G_OBJECT_CLASS (gvc_sound_theme_chooser_parent_class)->constructor (type, n_construct_properties, construct_params);
+
+        self = GVC_SOUND_THEME_CHOOSER (object);
+
+        setup_theme_selector (self);
+
+        update_theme (self);
+
+        return object;
+}
+
+static void
+gvc_sound_theme_chooser_class_init (GvcSoundThemeChooserClass *klass)
+{
+        GObjectClass   *object_class = G_OBJECT_CLASS (klass);
+
+        object_class->constructor = gvc_sound_theme_chooser_constructor;
+        object_class->finalize = gvc_sound_theme_chooser_finalize;
+
+        g_type_class_add_private (klass, sizeof (GvcSoundThemeChooserPrivate));
+}
+
+static void
+on_click_feedback_toggled (GtkToggleButton      *button,
+                           GvcSoundThemeChooser *chooser)
+{
+        gboolean     enabled;
+
+        enabled = gtk_toggle_button_get_active (button);
+
+        mateconf_client_set_bool (chooser->priv->client, INPUT_SOUNDS_KEY, enabled, NULL);
+}
+
+static void
+on_key_changed (MateConfClient          *client,
+                guint                 cnxn_id,
+                MateConfEntry           *entry,
+                GvcSoundThemeChooser *chooser)
+{
+        const char *key;
+        MateConfValue *value;
+
+        key = mateconf_entry_get_key (entry);
+
+        if (! g_str_has_prefix (key, KEY_SOUNDS_DIR)
+            && ! g_str_has_prefix (key, KEY_MARCO_DIR)) {
+                return;
+        }
+
+        value = mateconf_entry_get_value (entry);
+        if (strcmp (key, EVENT_SOUNDS_KEY) == 0) {
+                update_theme (chooser);
+        } else if (strcmp (key, SOUND_THEME_KEY) == 0) {
+                update_theme (chooser);
+        } else if (strcmp (key, INPUT_SOUNDS_KEY) == 0) {
+                update_theme (chooser);
+        } else if (strcmp (key, AUDIO_BELL_KEY) == 0) {
+                update_theme (chooser);
+        }
+}
+
+static void
+constrain_list_size (GtkWidget      *widget,
+                     GtkRequisition *requisition,
+                     GtkWidget      *to_size)
+{
+        GtkRequisition req;
+        int            max_height;
+
+        /* constrain height to be the tree height up to a max */
+        max_height = (gdk_screen_get_height (gtk_widget_get_screen (widget))) / 4;
+
+        gtk_widget_size_request (to_size, &req);
+
+        requisition->height = MIN (req.height, max_height);
+}
+
+static void
+setup_list_size_constraint (GtkWidget *widget,
+                            GtkWidget *to_size)
+{
+        g_signal_connect (widget,
+                          "size-request",
+                          G_CALLBACK (constrain_list_size),
+                          to_size);
+}
+
+static void
+gvc_sound_theme_chooser_init (GvcSoundThemeChooser *chooser)
+{
+        GtkWidget   *box;
+        GtkWidget   *label;
+        GtkWidget   *scrolled_window;
+        GtkWidget   *alignment;
+        char        *str;
+
+        chooser->priv = GVC_SOUND_THEME_CHOOSER_GET_PRIVATE (chooser);
+
+        chooser->priv->theme_box = gtk_hbox_new (FALSE, 0);
+        gtk_box_pack_start (GTK_BOX (chooser),
+                            chooser->priv->theme_box, FALSE, FALSE, 0);
+
+        label = gtk_label_new_with_mnemonic (_("Sound _theme:"));
+        gtk_box_pack_start (GTK_BOX (chooser->priv->theme_box), label, FALSE, FALSE, 0);
+        chooser->priv->combo_box = gtk_combo_box_new ();
+        gtk_box_pack_start (GTK_BOX (chooser->priv->theme_box), chooser->priv->combo_box, FALSE, FALSE, 6);
+        gtk_label_set_mnemonic_widget (GTK_LABEL (label), chooser->priv->combo_box);
+
+        chooser->priv->client = mateconf_client_get_default ();
+
+        str = g_strdup_printf ("<b>%s</b>", _("C_hoose an alert sound:"));
+        chooser->priv->selection_box = box = gtk_frame_new (str);
+        g_free (str);
+        label = gtk_frame_get_label_widget (GTK_FRAME (box));
+        gtk_label_set_use_underline (GTK_LABEL (label), TRUE);
+        gtk_label_set_use_markup (GTK_LABEL (label), TRUE);
+        gtk_frame_set_shadow_type (GTK_FRAME (box), GTK_SHADOW_NONE);
+
+        alignment = gtk_alignment_new (0, 0, 1, 1);
+        gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 6, 0, 0, 0);
+        gtk_container_add (GTK_CONTAINER (alignment), box);
+        gtk_box_pack_start (GTK_BOX (chooser), alignment, TRUE, TRUE, 6);
+
+        alignment = gtk_alignment_new (0, 0, 1, 1);
+        gtk_alignment_set_padding (GTK_ALIGNMENT (alignment), 6, 0, 0, 0);
+        gtk_container_add (GTK_CONTAINER (box), alignment);
+
+        chooser->priv->treeview = create_alert_treeview (chooser);
+        gtk_label_set_mnemonic_widget (GTK_LABEL (label), chooser->priv->treeview);
+
+        scrolled_window = gtk_scrolled_window_new (NULL, NULL);
+        setup_list_size_constraint (scrolled_window, chooser->priv->treeview);
+
+        gtk_scrolled_window_set_policy (GTK_SCROLLED_WINDOW (scrolled_window),
+                                        GTK_POLICY_NEVER,
+                                        GTK_POLICY_AUTOMATIC);
+        gtk_scrolled_window_set_shadow_type (GTK_SCROLLED_WINDOW (scrolled_window),
+                                             GTK_SHADOW_IN);
+        gtk_container_add (GTK_CONTAINER (scrolled_window), chooser->priv->treeview);
+        gtk_container_add (GTK_CONTAINER (alignment), scrolled_window);
+
+        chooser->priv->click_feedback_button = gtk_check_button_new_with_mnemonic (_("Enable _window and button sounds"));
+        gtk_toggle_button_set_active (GTK_TOGGLE_BUTTON (chooser->priv->click_feedback_button),
+                                      mateconf_client_get_bool (chooser->priv->client, INPUT_SOUNDS_KEY, NULL));
+        gtk_box_pack_start (GTK_BOX (chooser),
+                            chooser->priv->click_feedback_button,
+                            FALSE, FALSE, 0);
+        g_signal_connect (chooser->priv->click_feedback_button,
+                          "toggled",
+                          G_CALLBACK (on_click_feedback_toggled),
+                          chooser);
+
+
+        mateconf_client_add_dir (chooser->priv->client, KEY_SOUNDS_DIR,
+                              MATECONF_CLIENT_PRELOAD_ONELEVEL,
+                              NULL);
+        chooser->priv->sounds_dir_id = mateconf_client_notify_add (chooser->priv->client,
+								KEY_SOUNDS_DIR,
+								(MateConfClientNotifyFunc)on_key_changed,
+								chooser, NULL, NULL);
+        mateconf_client_add_dir (chooser->priv->client, KEY_MARCO_DIR,
+                              MATECONF_CLIENT_PRELOAD_ONELEVEL,
+                              NULL);
+        chooser->priv->marco_dir_id = mateconf_client_notify_add (chooser->priv->client,
+								  KEY_MARCO_DIR,
+								  (MateConfClientNotifyFunc)on_key_changed,
+								  chooser, NULL, NULL);
+
+        /* FIXME: should accept drag and drop themes.  should also
+           add an "Add Theme..." item to the theme combobox */
+}
+
+static void
+gvc_sound_theme_chooser_finalize (GObject *object)
+{
+        GvcSoundThemeChooser *sound_theme_chooser;
+
+        g_return_if_fail (object != NULL);
+        g_return_if_fail (GVC_IS_SOUND_THEME_CHOOSER (object));
+
+        sound_theme_chooser = GVC_SOUND_THEME_CHOOSER (object);
+
+	if (sound_theme_chooser->priv != NULL) {
+		if (sound_theme_chooser->priv->sounds_dir_id > 0) {
+			mateconf_client_notify_remove (sound_theme_chooser->priv->client,
+						    sound_theme_chooser->priv->sounds_dir_id);
+			sound_theme_chooser->priv->sounds_dir_id = 0;
+		}
+		if (sound_theme_chooser->priv->marco_dir_id > 0) {
+			mateconf_client_notify_remove (sound_theme_chooser->priv->client,
+						    sound_theme_chooser->priv->marco_dir_id);
+			sound_theme_chooser->priv->marco_dir_id = 0;
+		}
+		g_object_unref (sound_theme_chooser->priv->client);
+		sound_theme_chooser->priv->client = NULL;
+	}
+
+        G_OBJECT_CLASS (gvc_sound_theme_chooser_parent_class)->finalize (object);
+}
+
+GtkWidget *
+gvc_sound_theme_chooser_new (void)
+{
+        GObject *chooser;
+        chooser = g_object_new (GVC_TYPE_SOUND_THEME_CHOOSER,
+                                "spacing", 6,
+                                NULL);
+        return GTK_WIDGET (chooser);
+}