[gtk/wip/otte/listview: 90/158] builderlistitemfactory: Add scope argument

[Benjamin Otte <otte src gnome org>]

commit 8ef8a2da2e828b26f37412fa502a4a07553af7a3
Author: Benjamin Otte <otte redhat com>
Date:   Tue Dec 3 07:03:10 2019 +0100

    builderlistitemfactory: Add scope argument
    
    This way, the scope used when creating builder instances can be
    influenced. This way, callbacks can be passed into the factory.

 gtk/gtkbuilderlistitemfactory.c | 53 ++++++++++++++++++++++++++++++++++++++---
 gtk/gtkbuilderlistitemfactory.h |  8 +++++--
 2 files changed, 56 insertions(+), 5 deletions(-)
---
diff --git a/gtk/gtkbuilderlistitemfactory.c b/gtk/gtkbuilderlistitemfactory.c
index 387f8c998b..226d3a7ea1 100644
--- a/gtk/gtkbuilderlistitemfactory.c
+++ b/gtk/gtkbuilderlistitemfactory.c
@@ -59,6 +59,7 @@ struct _GtkBuilderListItemFactory
 {
   GtkListItemFactory parent_instance;
 
+  GtkBuilderScope *scope;
   GBytes *bytes;
   char *resource;
 };
@@ -72,6 +73,7 @@ enum {
   PROP_0,
   PROP_BYTES,
   PROP_RESOURCE,
+  PROP_SCOPE,
 
   N_PROPS
 };
@@ -93,6 +95,8 @@ gtk_builder_list_item_factory_setup (GtkListItemFactory *factory,
   builder = gtk_builder_new ();
 
   gtk_builder_set_current_object (builder, G_OBJECT (list_item));
+  if (self->scope)
+    gtk_builder_set_scope (builder, self->scope);
 
   if (!gtk_builder_extend_with_template  (builder, GTK_WIDGET (list_item), G_OBJECT_TYPE (list_item),
                                          (const gchar *)g_bytes_get_data (self->bytes, NULL),
@@ -130,6 +134,10 @@ gtk_builder_list_item_factory_get_property (GObject    *object,
       g_value_set_string (value, self->resource);
       break;
 
+    case PROP_SCOPE:
+      g_value_set_object (value, self->scope);
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -192,6 +200,10 @@ gtk_builder_list_item_factory_set_property (GObject      *object,
       }
       break;
 
+    case PROP_SCOPE:
+      self->scope = g_value_dup_object (value);
+      break;
+
     default:
       G_OBJECT_WARN_INVALID_PROPERTY_ID (object, property_id, pspec);
       break;
@@ -203,6 +215,7 @@ gtk_builder_list_item_factory_finalize (GObject *object)
 {
   GtkBuilderListItemFactory *self = GTK_BUILDER_LIST_ITEM_FACTORY (object);
 
+  g_clear_object (&self->scope);
   g_bytes_unref (self->bytes);
   g_free (self->resource);
 
@@ -245,8 +258,19 @@ gtk_builder_list_item_factory_class_init (GtkBuilderListItemFactoryClass *klass)
                          NULL,
                          G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
-  g_object_class_install_properties (gobject_class, N_PROPS, properties);
+  /**
+   * GtkBuilderListItemFactory:scope:
+   *
+   * scope to use when instantiating listitems
+   */
+  properties[PROP_SCOPE] =
+    g_param_spec_object ("scope",
+                         P_("Scope"),
+                         P_("scope to use when instantiating listitems"),
+                         GTK_TYPE_BUILDER_SCOPE,
+                         G_PARAM_READWRITE | G_PARAM_CONSTRUCT_ONLY | G_PARAM_STATIC_STRINGS);
 
+  g_object_class_install_properties (gobject_class, N_PROPS, properties);
 }
 
 static void
@@ -256,6 +280,7 @@ gtk_builder_list_item_factory_init (GtkBuilderListItemFactory *self)
 
 /**
  * gtk_builder_list_item_factory_new_from_bytes:
+ * @scope: (nullable) (transfer none): A scope to use when instantiating
  * @bytes: the bytes containing the ui file to instantiate
  *
  * Creates s new #GtkBuilderListItemFactory that instantiates widgets
@@ -264,17 +289,20 @@ gtk_builder_list_item_factory_init (GtkBuilderListItemFactory *self)
  * Returns: a new #GtkBuilderListItemFactory
  **/
 GtkListItemFactory *
-gtk_builder_list_item_factory_new_from_bytes (GBytes *bytes)
+gtk_builder_list_item_factory_new_from_bytes (GtkBuilderScope *scope,
+                                              GBytes          *bytes)
 {
   g_return_val_if_fail (bytes != NULL, NULL);
 
   return g_object_new (GTK_TYPE_BUILDER_LIST_ITEM_FACTORY,
                        "bytes", bytes,
+                       "scope", scope,
                        NULL);
 }
 
 /**
  * gtk_builder_list_item_factory_new_from_resource:
+ * @scope: (nullable) (transfer none): A scope to use when instantiating
  * @resource_path: valid path to a resource that contains the data
  *
  * Creates s new #GtkBuilderListItemFactory that instantiates widgets
@@ -283,12 +311,15 @@ gtk_builder_list_item_factory_new_from_bytes (GBytes *bytes)
  * Returns: a new #GtkBuilderListItemFactory
  **/
 GtkListItemFactory *
-gtk_builder_list_item_factory_new_from_resource (const char *resource_path)
+gtk_builder_list_item_factory_new_from_resource (GtkBuilderScope *scope,
+                                                 const char      *resource_path)
 {
+  g_return_val_if_fail (scope == NULL || GTK_IS_BUILDER_SCOPE (scope), NULL);
   g_return_val_if_fail (resource_path != NULL, NULL);
 
   return g_object_new (GTK_TYPE_BUILDER_LIST_ITEM_FACTORY,
                        "resource", resource_path,
+                       "scope", scope,
                        NULL);
 }
 
@@ -327,3 +358,19 @@ gtk_builder_list_item_factory_get_resource (GtkBuilderListItemFactory *self)
   return self->resource;
 }
 
+/**
+ * gtk_builder_list_item_factory_get_scope:
+ * @self: a #GtkBuilderListItemFactory
+ *
+ * Gets the scope used when constructing listitems.
+ *
+ * Returns: (transfer none) (nullable): The scope used when constructing listitems
+ **/
+GtkBuilderScope *
+gtk_builder_list_item_factory_get_scope (GtkBuilderListItemFactory *self)
+{
+  g_return_val_if_fail (GTK_IS_BUILDER_LIST_ITEM_FACTORY (self), NULL);
+
+  return self->scope;
+}
+
diff --git a/gtk/gtkbuilderlistitemfactory.h b/gtk/gtkbuilderlistitemfactory.h
index c10dacb7aa..cf2a7add44 100644
--- a/gtk/gtkbuilderlistitemfactory.h
+++ b/gtk/gtkbuilderlistitemfactory.h
@@ -42,14 +42,18 @@ GDK_AVAILABLE_IN_ALL
 GType                   gtk_builder_list_item_factory_get_type          (void) G_GNUC_CONST;
 
 GDK_AVAILABLE_IN_ALL
-GtkListItemFactory *    gtk_builder_list_item_factory_new_from_bytes    (GBytes                         
*bytes);
+GtkListItemFactory *    gtk_builder_list_item_factory_new_from_bytes    (GtkBuilderScope                
*scope,
+                                                                         GBytes                         
*bytes);
 GDK_AVAILABLE_IN_ALL
-GtkListItemFactory *    gtk_builder_list_item_factory_new_from_resource (const char                     
*resource_path);
+GtkListItemFactory *    gtk_builder_list_item_factory_new_from_resource (GtkBuilderScope                
*scope,
+                                                                         const char                     
*resource_path);
 
 GDK_AVAILABLE_IN_ALL
 GBytes *                gtk_builder_list_item_factory_get_bytes         (GtkBuilderListItemFactory      
*self) G_GNUC_PURE;
 GDK_AVAILABLE_IN_ALL
 const char *            gtk_builder_list_item_factory_get_resource      (GtkBuilderListItemFactory      
*self) G_GNUC_PURE;
+GDK_AVAILABLE_IN_ALL
+GtkBuilderScope *       gtk_builder_list_item_factory_get_scope         (GtkBuilderListItemFactory      
*self) G_GNUC_PURE;
 
 G_END_DECLS