Fix LP: #723873 - when a menuitems property is restored to a default value, the new

state is not updated correctly on the listening client. Make dbusmenu_menuitem_property_remove call
dbusmenu_menuitem_property_set_variant with a NULL value rather than manipulating the properties
directly. When removing a property that has a default value now, it will signal PROPERTY_CHANGED
with the default value, which means that changing a property from non-default to default over the
wire (which really just deletes the property) now works correctly. This is also now more aligned with
how dbusmenu_menuitem_property_get* works, which will return the default value for a property
after removing the property from the menuitem

1 files changed, 16 insertions, 17 deletions

diff --git a/libdbusmenu-glib/menuitem.c b/libdbusmenu-glib/menuitem.c
index 34147a3..61e59c3 100644
--- a/libdbusmenu-glib/menuitem.c
+++ b/libdbusmenu-glib/menuitem.c
@@ -1150,9 +1150,9 @@ dbusmenu_menuitem_property_set_variant (DbusmenuMenuitem * mi, const gchar * pro
 	DbusmenuMenuitemPrivate * priv = DBUSMENU_MENUITEM_GET_PRIVATE(mi);
 	GVariant * default_value = NULL;
 
-	if (value != NULL) {
-		const gchar * type = menuitem_get_type(mi);
+	const gchar * type = menuitem_get_type(mi);
 
+	if (value != NULL) {
 		/* Check the expected type to see if we want to have a warning */
 		GVariantType * default_type = dbusmenu_defaults_default_get_type(priv->defaults, type, property);
 		if (default_type != NULL) {
@@ -1163,22 +1163,23 @@ dbusmenu_menuitem_property_set_variant (DbusmenuMenuitem * mi, const gchar * pro
 				g_warning("Setting menuitem property '%s' with value of type '%s' when expecting '%s'", property, g_variant_get_type_string(value), g_variant_type_peek_string(default_type));
 			}
 		}
+	}
 
-		/* Check the defaults database to see if we have a default
-		   for this property. */
-		default_value = dbusmenu_defaults_default_get(priv->defaults, type, property);
-		if (default_value != NULL) {
-			/* Now see if we're setting this to the same value as the
-			   default.  If we are then we just want to swallow this variant
-			   and make the function behave like we're clearing it. */
-			if (g_variant_equal(default_value, value)) {
-				g_variant_ref_sink(value);
-				g_variant_unref(value);
-				value = NULL;
-			}
+	/* Check the defaults database to see if we have a default
+	   for this property. */
+	default_value = dbusmenu_defaults_default_get(priv->defaults, type, property);
+	if (default_value != NULL && value != NULL) {
+		/* Now see if we're setting this to the same value as the
+		   default.  If we are then we just want to swallow this variant
+		   and make the function behave like we're clearing it. */
+		if (g_variant_equal(default_value, value)) {
+			g_variant_ref_sink(value);
+			g_variant_unref(value);
+			value = NULL;
 		}
 	}
 
+
 	gboolean replaced = FALSE;
 	gpointer currentval = g_hash_table_lookup(priv->properties, property);
 
@@ -1371,9 +1372,7 @@ dbusmenu_menuitem_property_remove (DbusmenuMenuitem * mi, const gchar * property
 	g_return_if_fail(DBUSMENU_IS_MENUITEM(mi));
 	g_return_if_fail(property != NULL);
 
-	DbusmenuMenuitemPrivate * priv = DBUSMENU_MENUITEM_GET_PRIVATE(mi);
-
-	g_hash_table_remove(priv->properties, property);
+	dbusmenu_menuitem_property_set_variant(mi, property, NULL);
 
 	return;
 }