Add Blender install autodetection and configuration.

This PR is a continuation to #54886

* Changed Blender path editor setting from binary to installation.
* Add a class to query whether the format is supported.
* This class allows to create proper editors to configure support.

**NOTE**: This PR only provides autodetection on Linux. Code needs to be added for Windows and MacOS to autodetect the Blender installation.

Co-authored-by: bruvzg <7645683+bruvzg@users.noreply.github.com>
Co-authored-by: Pedro J. Estébanez <pedrojrulez@gmail.com>

1 files changed, 12 insertions, 14 deletions

diff --git a/modules/gltf/register_types.cpp b/modules/gltf/register_types.cpp
index 79b918dbc0..4166f92502 100644
--- a/modules/gltf/register_types.cpp
+++ b/modules/gltf/register_types.cpp
@@ -64,22 +64,19 @@ static void _editor_init() {
 
 	// Blend to glTF importer.
 
-	bool blend_enabled = GLOBAL_GET("filesystem/import/blend/enabled");
+	bool blend_enabled = GLOBAL_GET("filesystem/import/blender/enabled");
 	// Defined here because EditorSettings doesn't exist in `register_gltf_types` yet.
-	String blender_path = EDITOR_DEF_RST("filesystem/import/blend/blender_path", "");
+	EDITOR_DEF_RST("filesystem/import/blender/blender3_path", "");
 	EditorSettings::get_singleton()->add_property_hint(PropertyInfo(Variant::STRING,
-			"filesystem/import/blend/blender_path", PROPERTY_HINT_GLOBAL_FILE));
+			"filesystem/import/blender/blender3_path", PROPERTY_HINT_GLOBAL_DIR));
 	if (blend_enabled) {
-		DirAccessRef da = DirAccess::create(DirAccess::ACCESS_FILESYSTEM);
-		if (blender_path.is_empty()) {
-			WARN_PRINT("Blend file import is enabled, but no Blender path is configured. Blend files will not be imported.");
-		} else if (!da->file_exists(blender_path)) {
-			WARN_PRINT("Blend file import is enabled, but the Blender path doesn't point to a valid Blender executable. Blend files will not be imported.");
-		} else {
-			Ref<EditorSceneFormatImporterBlend> importer;
-			importer.instantiate();
-			ResourceImporterScene::get_singleton()->add_importer(importer);
-		}
+		Ref<EditorSceneFormatImporterBlend> importer;
+		importer.instantiate();
+		ResourceImporterScene::get_singleton()->add_importer(importer);
+
+		Ref<EditorFileSystemImportFormatSupportQueryBlend> blend_import_query;
+		blend_import_query.instantiate();
+		EditorFileSystem::get_singleton()->add_import_format_support_query(blend_import_query);
 	}
 
 	// FBX to glTF importer.
@@ -131,13 +128,14 @@ void register_gltf_types() {
 	EditorPlugins::add_by_type<SceneExporterGLTFPlugin>();
 
 	// Project settings defined here so doctool finds them.
-	GLOBAL_DEF_RST("filesystem/import/blend/enabled", true);
+	GLOBAL_DEF_RST("filesystem/import/blender/enabled", true);
 	GLOBAL_DEF_RST("filesystem/import/fbx/enabled", true);
 	GDREGISTER_CLASS(EditorSceneFormatImporterBlend);
 	GDREGISTER_CLASS(EditorSceneFormatImporterFBX);
 
 	ClassDB::set_current_api(prev_api);
 	EditorNode::add_init_callback(_editor_init);
+
 #endif // TOOLS_ENABLED
 }