tell dconf-edit about relocatable schemas (#1355)

* tell dconf-edit about relocatable schemas

* self fix for incorrect and duplicated records

remove duplicated schemas for currect path
remove incorrect schemas for current path

* remove clock applet hack

* expose mate_panel_applet_settings_new to introspection

add "transfer full" annotation to make this method available throught
introspection

2 files changed, 90 insertions, 0 deletions

diff --git a/libmate-panel-applet/mate-panel-applet-gsettings.c b/libmate-panel-applet/mate-panel-applet-gsettings.c
index 1c0ac744..4679dc6d 100644
--- a/libmate-panel-applet/mate-panel-applet-gsettings.c
+++ b/libmate-panel-applet/mate-panel-applet-gsettings.c
@@ -29,6 +29,87 @@
 #include "mate-panel-applet.h"
 #include "mate-panel-applet-gsettings.h"
 
+static GVariant *
+add_to_dict (GVariant *dict, const gchar *schema, const gchar *path)
+{
+    GVariantIter iter;
+    GVariantBuilder builder;
+    gboolean is_schema_found;
+    gboolean is_incorrect_schema;
+    gint path_counter;
+
+    gchar *key;
+    gchar *value;
+
+    g_variant_builder_init (&builder, (const GVariantType *) "a{ss}");
+    g_variant_iter_init (&iter, dict);
+
+    is_schema_found = FALSE;
+    is_incorrect_schema = FALSE;
+    path_counter = 0;
+
+    while (g_variant_iter_next (&iter, "{ss}", &key, &value)) {
+        gboolean path_is_found = FALSE;
+        if (g_strcmp0 (value, path) == 0) {
+            path_is_found = TRUE;
+            path_counter++;
+            if (g_strcmp0 (key, schema) == 0) {
+                is_schema_found = TRUE;
+            } else {
+                // skip incoorect schema for path
+                is_incorrect_schema = TRUE;
+                g_free (key);
+                g_free (value);
+                continue;
+            }
+        }
+
+        gboolean need_add_to_dict = !path_is_found || path_counter < 2;
+
+        if (need_add_to_dict) {
+            g_variant_builder_add (&builder, "{ss}", key, value);
+        }
+
+        g_free (key);
+        g_free (value);
+    }
+
+    if (!is_schema_found) {
+        g_variant_builder_add (&builder, "{ss}", schema, path);
+    }
+
+    if (!is_schema_found || is_incorrect_schema || (path_counter > 1)) {
+        return g_variant_ref_sink (g_variant_builder_end (&builder));
+    } else {
+        g_variant_builder_clear (&builder);
+        // no changes
+        return NULL;
+    }
+}
+
+static void
+register_dconf_editor_relocatable_schema (const gchar *schema, const gchar *path)
+{
+    GSettings *dconf_editor_settings;
+    dconf_editor_settings = g_settings_new ("ca.desrt.dconf-editor.Settings");
+
+    if (dconf_editor_settings && g_settings_is_writable (dconf_editor_settings, "relocatable-schemas-user-paths")) {
+        GVariant *relocatable_schemas = g_settings_get_value (dconf_editor_settings, "relocatable-schemas-user-paths");
+
+        if (g_variant_is_of_type (relocatable_schemas, G_VARIANT_TYPE_DICTIONARY)) {
+            GVariant * new_relocatable_schemas = add_to_dict (relocatable_schemas, schema, path);
+            if (new_relocatable_schemas) {
+                g_settings_set_value (dconf_editor_settings, "relocatable-schemas-user-paths", new_relocatable_schemas);
+                g_variant_unref (new_relocatable_schemas);
+            }
+        }
+
+        g_variant_unref (relocatable_schemas);
+    }
+
+    g_object_unref (dconf_editor_settings);
+}
+
 GSettings *
 mate_panel_applet_settings_new (MatePanelApplet *applet, gchar *schema)
 {
@@ -41,6 +122,7 @@ mate_panel_applet_settings_new (MatePanelApplet *applet, gchar *schema)
 
     if (path) {
         settings = g_settings_new_with_path (schema, path);
+        register_dconf_editor_relocatable_schema (schema, path);
         g_free (path);
     }
 
diff --git a/libmate-panel-applet/mate-panel-applet-gsettings.h b/libmate-panel-applet/mate-panel-applet-gsettings.h
index 0dbbdb01..152a73d2 100644
--- a/libmate-panel-applet/mate-panel-applet-gsettings.h
+++ b/libmate-panel-applet/mate-panel-applet-gsettings.h
@@ -35,7 +35,15 @@
 
 G_BEGIN_DECLS
 
+/**
+ * mate_panel_applet_settings_new:
+ * @applet A #MatePanelApplet
+ * @schema applet's schema id
+ *
+ * Returns: (transfer full): a #GSettings. free when you used it
+ */
 GSettings* mate_panel_applet_settings_new (MatePanelApplet *applet, gchar *schema);
+
 GList*     mate_panel_applet_settings_get_glist (GSettings *settings, gchar *key);
 void       mate_panel_applet_settings_set_glist (GSettings *settings, gchar *key, GList *list);
 GSList*    mate_panel_applet_settings_get_gslist (GSettings *settings, gchar *key);