[glib/new-gsettings] fix signals in gsettings.c

[Ryan Lortie <ryanl src gnome org>]

commit 28aa9f9426c85c583735fd946c75d8199309c4bd
Author: Ryan Lortie <desrt desrt ca>
Date:   Fri Apr 16 00:49:12 2010 -0400

    fix signals in gsettings.c

 gio/gsettings.c       |   96 +++++++++++++++++++++++++++++++++++++------------
 gio/gsettingsschema.c |   32 ++++++++++++++++
 gio/gsettingsschema.h |    2 +
 3 files changed, 107 insertions(+), 23 deletions(-)
---
diff --git a/gio/gsettings.c b/gio/gsettings.c
index 80bb87b..676d979 100644
--- a/gio/gsettings.c
+++ b/gio/gsettings.c
@@ -225,20 +225,6 @@ settings_backend_keys_changed (GSettingsBackend    *backend,
 }
 
 static void
-settings_backend_path_writable_changed (GSettingsBackend *backend,
-                                        const gchar      *path,
-                                        gpointer          user_data)
-{
-  GSettings *settings = G_SETTINGS (user_data);
-
-  g_assert (settings->priv->backend == backend);
-
-  if (g_str_has_prefix (settings->priv->path, path))
-    g_signal_emit (settings,
-                   g_settings_signals[SIGNAL_ALL_WRITABLE_CHANGED], 0);
-}
-
-static void
 settings_backend_writable_changed (GSettingsBackend *backend,
                                    const gchar      *key,
                                    gpointer          user_data)
@@ -253,15 +239,83 @@ settings_backend_writable_changed (GSettingsBackend *backend,
   if (settings->priv->path[i] == '\0' &&
       g_settings_schema_has_key (settings->priv->schema, key + i))
     {
+      const gchar *string;
       GQuark quark;
 
+      string = g_quark_to_string (quark);
+
       quark = g_quark_from_string (key + i);
+      g_signal_emit (settings, g_settings_signals[SIGNAL_WRITABLE_CHANGED],
+                     quark, string);
+
+      /* if 'writeable' changes the key value may change as a
+       * side-effect (consider the admin setting a mandatory key over
+       * top of an existing key).  so, signal that possibility.
+       */
       g_signal_emit (settings, g_settings_signals[SIGNAL_CHANGED],
-                     quark, g_quark_to_string (quark));
+                     quark, string);
     }
 }
 
 static void
+settings_backend_path_writable_changed (GSettingsBackend *backend,
+                                        const gchar      *path,
+                                        gpointer          user_data)
+{
+  GSettings *settings = G_SETTINGS (user_data);
+
+  g_assert (settings->priv->backend == backend);
+
+  if (g_str_has_prefix (settings->priv->path, path))
+    {
+      g_signal_emit (settings,
+                     g_settings_signals[SIGNAL_ALL_WRITABLE_CHANGED], 0);
+      g_signal_emit (settings, g_settings_signals[SIGNAL_ALL_CHANGED], 0);
+    }
+}
+
+
+static void
+real_all_writable_changed (GSettings *settings)
+{
+  const GQuark *list;
+  gint n_items;
+  gint i;
+
+  list = g_settings_schema_list (settings->priv->schema, &n_items);
+
+  for (i = 0; i < n_items; i++)
+    g_signal_emit (settings, g_settings_signals[SIGNAL_WRITABLE_CHANGED],
+                   list[i], g_quark_to_string (list[i]));
+}
+
+static void
+real_all_changed (GSettings *settings)
+{
+  const GQuark *list;
+  gint n_items;
+  gint i;
+
+  list = g_settings_schema_list (settings->priv->schema, &n_items);
+
+  for (i = 0; i < n_items; i++)
+    g_signal_emit (settings, g_settings_signals[SIGNAL_CHANGED],
+                   list[i], g_quark_to_string (list[i]));
+}
+
+static void
+real_keys_changed (GSettings    *settings,
+                   const GQuark *items,
+                   gint          n_items)
+{
+  gint i;
+
+  for (i = 0; i < n_items; i++)
+    g_signal_emit (settings, g_settings_signals[SIGNAL_CHANGED],
+                   items[i], g_quark_to_string (items[i]));
+}
+
+static void
 g_settings_constructed (GObject *object)
 {
   GSettings *settings = G_SETTINGS (object);
@@ -500,14 +554,10 @@ static void
 g_settings_class_init (GSettingsClass *class)
 {
   GObjectClass *object_class = G_OBJECT_CLASS (class);
-/*
-  class->all_writable_changed = g_settings_real_all_writable_changed;
-  class->all_changed = g_settings_real_all_changed;
-  class->keys_changed = g_settings_real_keys_changed;
-  class->writable_changed = g_settings_real_writable_changed;
-  class->changed = g_settings_real_changed;
-  class->destroyed = g_settings_real_destroyed;
-*/
+  class->all_writable_changed = real_all_writable_changed;
+  class->all_changed = real_all_changed;
+  class->keys_changed = real_keys_changed;
+
   object_class->set_property = g_settings_set_property;
   object_class->get_property = g_settings_get_property;
   object_class->constructed = g_settings_constructed;
diff --git a/gio/gsettingsschema.c b/gio/gsettingsschema.c
index 188201d..af2c7d8 100644
--- a/gio/gsettingsschema.c
+++ b/gio/gsettingsschema.c
@@ -30,6 +30,8 @@ struct _GSettingsSchemaPrivate
 {
   const gchar *gettext_domain;
   const gchar *path;
+  GQuark *items;
+  gint n_items;
   GvdbTable *table;
   gchar *name;
 };
@@ -86,6 +88,7 @@ g_settings_schema_finalize (GObject *object)
   GSettingsSchema *schema = G_SETTINGS_SCHEMA (object);
 
   gvdb_table_unref (schema->priv->table);
+  g_free (schema->priv->items);
   g_free (schema->priv->name);
 
   G_OBJECT_CLASS (g_settings_schema_parent_class)
@@ -203,3 +206,32 @@ g_settings_schema_has_key (GSettingsSchema *schema,
 {
   return gvdb_table_has_value (schema->priv->table, key);
 }
+
+const GQuark *
+g_settings_schema_list (GSettingsSchema *schema,
+                        gint            *n_items)
+{
+  gint i, j;
+
+  if (schema->priv->items == NULL)
+    {
+      gchar **list;
+      gint len;
+
+      list = gvdb_table_list (schema->priv->table, "");
+      len = g_strv_length (list);
+
+      schema->priv->items = g_new (GQuark, len);
+      j = 0;
+
+      for (i = 0; i < len; i++)
+        if (list[i][0] != '.')
+          schema->priv->items[j++] = g_quark_from_string (list[i]);
+      schema->priv->n_items = j;
+
+      g_strfreev (list);
+    }
+
+  *n_items = schema->priv->n_items;
+  return schema->priv->items;
+}
diff --git a/gio/gsettingsschema.h b/gio/gsettingsschema.h
index a1a2d26..f996370 100644
--- a/gio/gsettingsschema.h
+++ b/gio/gsettingsschema.h
@@ -61,6 +61,8 @@ GVariant *              g_settings_schema_get_value                     (GSettin
                                                                          GVariant        **options);
 gboolean                g_settings_schema_has_key                       (GSettingsSchema  *schema,
                                                                          const gchar      *key);
+const GQuark *          g_settings_schema_list                          (GSettingsSchema  *schema,
+                                                                         gint             *n_items);
 
 G_END_DECLS