Add scene Post-Import Plugin support.

* New plugin system to control the whole import workflow
* Can add options and run code at every import step (general, per node, mesh, animation, material etc.)

This constitutes a first version of these plugins. The ability to interact with the import preview dialog will likely be added later on.

5 files changed, 12 insertions, 21 deletions

diff --git a/modules/gltf/doc_classes/EditorSceneImporterGLTF.xml b/modules/gltf/doc_classes/EditorSceneImporterGLTF.xml
deleted file mode 100644
index c85fce7b9d..0000000000
--- a/modules/gltf/doc_classes/EditorSceneImporterGLTF.xml
+++ /dev/null
@@ -1,9 +0,0 @@
-<?xml version="1.0" encoding="UTF-8" ?>
-<class name="EditorSceneImporterGLTF" inherits="EditorSceneImporter" version="4.0">
-	<brief_description>
-	</brief_description>
-	<description>
-	</description>
-	<tutorials>
-	</tutorials>
-</class>
diff --git a/modules/gltf/editor_scene_importer_gltf.cpp b/modules/gltf/editor_scene_importer_gltf.cpp
index 25875e7396..1a172877a0 100644
--- a/modules/gltf/editor_scene_importer_gltf.cpp
+++ b/modules/gltf/editor_scene_importer_gltf.cpp
@@ -38,16 +38,16 @@
 #include "scene/animation/animation_player.h"
 #include "scene/resources/animation.h"
 
-uint32_t EditorSceneImporterGLTF::get_import_flags() const {
+uint32_t EditorSceneFormatImporterGLTF::get_import_flags() const {
 	return ImportFlags::IMPORT_SCENE | ImportFlags::IMPORT_ANIMATION;
 }
 
-void EditorSceneImporterGLTF::get_extensions(List<String> *r_extensions) const {
+void EditorSceneFormatImporterGLTF::get_extensions(List<String> *r_extensions) const {
 	r_extensions->push_back("gltf");
 	r_extensions->push_back("glb");
 }
 
-Node *EditorSceneImporterGLTF::import_scene(const String &p_path,
+Node *EditorSceneFormatImporterGLTF::import_scene(const String &p_path,
 		uint32_t p_flags, int p_bake_fps,
 		List<String> *r_missing_deps,
 		Error *r_err) {
@@ -56,7 +56,7 @@ Node *EditorSceneImporterGLTF::import_scene(const String &p_path,
 	return doc->import_scene_gltf(p_path, p_flags, p_bake_fps, Ref<GLTFState>(), r_missing_deps, r_err);
 }
 
-Ref<Animation> EditorSceneImporterGLTF::import_animation(const String &p_path,
+Ref<Animation> EditorSceneFormatImporterGLTF::import_animation(const String &p_path,
 		uint32_t p_flags,
 		int p_bake_fps) {
 	return Ref<Animation>();
diff --git a/modules/gltf/editor_scene_importer_gltf.h b/modules/gltf/editor_scene_importer_gltf.h
index 90663612a1..28963adc28 100644
--- a/modules/gltf/editor_scene_importer_gltf.h
+++ b/modules/gltf/editor_scene_importer_gltf.h
@@ -41,8 +41,8 @@
 
 class Animation;
 
-class EditorSceneImporterGLTF : public EditorSceneImporter {
-	GDCLASS(EditorSceneImporterGLTF, EditorSceneImporter);
+class EditorSceneFormatImporterGLTF : public EditorSceneFormatImporter {
+	GDCLASS(EditorSceneFormatImporterGLTF, EditorSceneFormatImporter);
 
 public:
 	virtual uint32_t get_import_flags() const override;
diff --git a/modules/gltf/gltf_document.cpp b/modules/gltf/gltf_document.cpp
index 11f30be5a4..70df62de6a 100644
--- a/modules/gltf/gltf_document.cpp
+++ b/modules/gltf/gltf_document.cpp
@@ -5684,7 +5684,7 @@ void GLTFDocument::_generate_skeleton_bone_node(Ref<GLTFState> state, Node *scen
 }
 
 template <class T>
-struct EditorSceneImporterGLTFInterpolate {
+struct EditorSceneFormatImporterGLTFInterpolate {
 	T lerp(const T &a, const T &b, float c) const {
 		return a + (b - a) * c;
 	}
@@ -5710,7 +5710,7 @@ struct EditorSceneImporterGLTFInterpolate {
 
 // thank you for existing, partial specialization
 template <>
-struct EditorSceneImporterGLTFInterpolate<Quaternion> {
+struct EditorSceneFormatImporterGLTFInterpolate<Quaternion> {
 	Quaternion lerp(const Quaternion &a, const Quaternion &b, const float c) const {
 		ERR_FAIL_COND_V_MSG(!a.is_normalized(), Quaternion(), "The quaternion \"a\" must be normalized.");
 		ERR_FAIL_COND_V_MSG(!b.is_normalized(), Quaternion(), "The quaternion \"b\" must be normalized.");
@@ -5749,7 +5749,7 @@ T GLTFDocument::_interpolate_track(const Vector<float> &p_times, const Vector<T>
 		idx++;
 	}
 
-	EditorSceneImporterGLTFInterpolate<T> interp;
+	EditorSceneFormatImporterGLTFInterpolate<T> interp;
 
 	switch (p_interp) {
 		case GLTFAnimation::INTERP_LINEAR: {
@@ -6833,7 +6833,7 @@ Node *GLTFDocument::import_scene_gltf(const String &p_path, uint32_t p_flags, in
 		r_state.instantiate();
 	}
 	r_state->use_named_skin_binds =
-			p_flags & EditorSceneImporter::IMPORT_USE_NAMED_SKIN_BINDS;
+			p_flags & EditorSceneFormatImporter::IMPORT_USE_NAMED_SKIN_BINDS;
 
 	Ref<GLTFDocument> gltf_document;
 	gltf_document.instantiate();
diff --git a/modules/gltf/register_types.cpp b/modules/gltf/register_types.cpp
index 0aceb838f7..5a60c2d328 100644
--- a/modules/gltf/register_types.cpp
+++ b/modules/gltf/register_types.cpp
@@ -52,7 +52,7 @@
 #ifndef _3D_DISABLED
 #ifdef TOOLS_ENABLED
 static void _editor_init() {
-	Ref<EditorSceneImporterGLTF> import_gltf;
+	Ref<EditorSceneFormatImporterGLTF> import_gltf;
 	import_gltf.instantiate();
 	ResourceImporterScene::get_singleton()->add_importer(import_gltf);
 }
@@ -64,7 +64,7 @@ void register_gltf_types() {
 #ifdef TOOLS_ENABLED
 	ClassDB::APIType prev_api = ClassDB::get_current_api();
 	ClassDB::set_current_api(ClassDB::API_EDITOR);
-	GDREGISTER_CLASS(EditorSceneImporterGLTF);
+	GDREGISTER_CLASS(EditorSceneFormatImporterGLTF);
 	GDREGISTER_CLASS(GLTFMesh);
 	EditorPlugins::add_by_type<SceneExporterGLTFPlugin>();
 	ClassDB::set_current_api(prev_api);