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Merge branch 'wip/chergert/builder-expose-object-fix' into 'main'

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builder: gracefully handle re-exposing builder object

See merge request GNOME/gtk!4913
This commit is contained in:
Christian Hergert 2022-08-01 05:09:53 +00:00
commit 9bce70ed8d
1 changed files with 17 additions and 4 deletions
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21
gtk/gtkbuilder.c
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@ -1353,8 +1353,8 @@ gtk_builder_add_objects_from_file (GtkBuilder *builder,
* Main private entry point for building composite components
* from template XML.
*
* This is exported purely to let `gtk-builder-tool` validate
* templates, applications have no need to call this function.
* Most likely you do not need to call this function in applications as
* templates are handled by `GtkWidget`.
*
* Returns: A positive value on success, 0 if an error occurred
*/
@ -1367,6 +1367,7 @@ gtk_builder_extend_with_template (GtkBuilder *builder,
GError **error)
{
GtkBuilderPrivate *priv = gtk_builder_get_instance_private (builder);
const char *name;
GError *tmp_error;
char *filename;
@ -1384,8 +1385,15 @@ gtk_builder_extend_with_template (GtkBuilder *builder,
priv->resource_prefix = NULL;
priv->template_type = template_type;
filename = g_strconcat ("<", g_type_name (template_type), " template>", NULL);
gtk_builder_expose_object (builder, g_type_name (template_type), object);
/* We specifically allow this function to be called multiple times with
* the same @template_type as that is used in applications like Builder
* to implement UI merging.
*/
name = g_type_name (template_type);
if (gtk_builder_get_object (builder, name) != object)
gtk_builder_expose_object (builder, name, object);
filename = g_strconcat ("<", name, " template>", NULL);
_gtk_builder_parser_parse_buffer (builder, filename,
buffer, length,
NULL,
@ -1772,6 +1780,11 @@ gtk_builder_get_translation_domain (GtkBuilder *builder)
*
* Add @object to the @builder object pool so it can be
* referenced just like any other object built by builder.
*
* Only a single object may be added using @name. However,
* it is not an error to expose the same object under multiple
* names. `gtk_builder_get_object()` may be used to determine
* if an object has already been added with @name.
*/
void
gtk_builder_expose_object (GtkBuilder *builder,