[gnome-builder] template: add priority to templates to sort

[Christian Hergert <chergert src gnome org>]

commit 3cabaf3e4e5410fa9d276e94b5af996fd791ca20
Author: Christian Hergert <chergert redhat com>
Date:   Sat Jan 20 16:17:45 2018 -0800

    template: add priority to templates to sort

 src/libide/template/ide-project-template.c | 43 ++++++++++++++++++++++++++++++
 src/libide/template/ide-project-template.h |  6 +++++
 2 files changed, 49 insertions(+)
---
diff --git a/src/libide/template/ide-project-template.c b/src/libide/template/ide-project-template.c
index 47a5f2821..d83d17d1f 100644
--- a/src/libide/template/ide-project-template.c
+++ b/src/libide/template/ide-project-template.c
@@ -133,3 +133,46 @@ ide_project_template_expand_finish (IdeProjectTemplate  *self,
 
   return IDE_PROJECT_TEMPLATE_GET_IFACE (self)->expand_finish (self, result, error);
 }
+
+/**
+ * ide_project_template_get_priority:
+ * @self: a #IdeProjectTemplate
+ *
+ * Gets the priority of the template. This can be used to sort the templates
+ * in the "new project" view.
+ *
+ * Returns: the priority of the template
+ *
+ * Since: 3.28
+ */
+gint
+ide_project_template_get_priority (IdeProjectTemplate *self)
+{
+  g_return_val_if_fail (IDE_IS_PROJECT_TEMPLATE (self), 0);
+
+  if (IDE_PROJECT_TEMPLATE_GET_IFACE (self)->get_priority)
+    return IDE_PROJECT_TEMPLATE_GET_IFACE (self)->get_priority (self);
+
+  return 0;
+}
+
+gint
+ide_project_template_compare (IdeProjectTemplate *a,
+                              IdeProjectTemplate *b)
+{
+  gint ret;
+
+  g_return_val_if_fail (IDE_IS_PROJECT_TEMPLATE (a), 0);
+  g_return_val_if_fail (IDE_IS_PROJECT_TEMPLATE (b), 0);
+
+  ret = ide_project_template_get_priority (a) - ide_project_template_get_priority (b);
+
+  if (ret == 0)
+    {
+      g_autofree gchar *a_name = ide_project_template_get_name (a);
+      g_autofree gchar *b_name = ide_project_template_get_name (b);
+      ret = g_utf8_collate (a_name, b_name);
+    }
+
+  return ret;
+}
diff --git a/src/libide/template/ide-project-template.h b/src/libide/template/ide-project-template.h
index c0379bd84..3d9070d7d 100644
--- a/src/libide/template/ide-project-template.h
+++ b/src/libide/template/ide-project-template.h
@@ -46,10 +46,13 @@ struct _IdeProjectTemplateInterface
   gboolean    (*expand_finish)   (IdeProjectTemplate   *self,
                                   GAsyncResult         *result,
                                   GError              **error);
+  gint        (*get_priority)    (IdeProjectTemplate   *self);
 };
 
 IDE_AVAILABLE_IN_ALL
 gchar      *ide_project_template_get_id          (IdeProjectTemplate  *self);
+IDE_AVAILABLE_IN_3_28
+gint        ide_project_template_get_priority    (IdeProjectTemplate  *self);
 IDE_AVAILABLE_IN_ALL
 gchar      *ide_project_template_get_name        (IdeProjectTemplate  *self);
 IDE_AVAILABLE_IN_ALL
@@ -70,5 +73,8 @@ IDE_AVAILABLE_IN_ALL
 gboolean    ide_project_template_expand_finish   (IdeProjectTemplate   *self,
                                                   GAsyncResult         *result,
                                                   GError              **error);
+IDE_AVAILABLE_IN_3_28
+gint        ide_project_template_compare         (IdeProjectTemplate   *a,
+                                                  IdeProjectTemplate   *b);
 
 G_END_DECLS