From 77a382ba2ffb214d9f5bd690df492ffd212f39b6 Mon Sep 17 00:00:00 2001
From: Julien Duroure <julien.duroure@gmail.com>
Date: Sat, 29 Jun 2024 09:16:02 +0200
Subject: [PATCH] glTF exporter: call hook for each action, including the
 active one

---
 .../addons_core/io_scene_gltf2/__init__.py    |  2 +-
 .../animation/gltf2_blender_gather_action.py  | 32 +++++++++++++++++++
 2 files changed, 33 insertions(+), 1 deletion(-)

diff --git a/scripts/addons_core/io_scene_gltf2/__init__.py b/scripts/addons_core/io_scene_gltf2/__init__.py
index 4292d61775a..19b50e983f8 100755
--- a/scripts/addons_core/io_scene_gltf2/__init__.py
+++ b/scripts/addons_core/io_scene_gltf2/__init__.py
@@ -5,7 +5,7 @@
 bl_info = {
     'name': 'glTF 2.0 format',
     'author': 'Julien Duroure, Scurest, Norbert Nopper, Urs Hanselmann, Moritz Becher, Benjamin Schmithüsen, Jim Eckerlein, and many external contributors',
-    "version": (4, 2, 53),
+    "version": (4, 2, 54),
     'blender': (4, 2, 0),
     'location': 'File > Import-Export',
     'description': 'Import-Export as glTF 2.0',
diff --git a/scripts/addons_core/io_scene_gltf2/blender/exp/animation/gltf2_blender_gather_action.py b/scripts/addons_core/io_scene_gltf2/blender/exp/animation/gltf2_blender_gather_action.py
index 0591bb8ddcf..a2fff418f0c 100644
--- a/scripts/addons_core/io_scene_gltf2/blender/exp/animation/gltf2_blender_gather_action.py
+++ b/scripts/addons_core/io_scene_gltf2/blender/exp/animation/gltf2_blender_gather_action.py
@@ -337,6 +337,22 @@ def gather_action_animations(obj_uuid: int,
                         "Animation '{}' could not be exported. Cause: {}".format(
                             blender_action.name, error))
                     continue
+            else:
+                # No need to switch action, but we call the hook anyway, in case of user extension
+                export_user_extensions(
+                    'pre_animation_switch_hook',
+                    export_settings,
+                    blender_object,
+                    blender_action,
+                    track_name,
+                    on_type)
+                export_user_extensions(
+                    'post_animation_switch_hook',
+                    export_settings,
+                    blender_object,
+                    blender_action,
+                    track_name,
+                    on_type)
 
         if on_type == "SHAPEKEY":
             if blender_object.data.shape_keys.animation_data.action is None \
@@ -359,6 +375,22 @@ def gather_action_animations(obj_uuid: int,
                     blender_action,
                     track_name,
                     on_type)
+            else:
+                # No need to switch action, but we call the hook anyway, in case of user extension
+                export_user_extensions(
+                    'pre_animation_switch_hook',
+                    export_settings,
+                    blender_object,
+                    blender_action,
+                    track_name,
+                    on_type)
+                export_user_extensions(
+                    'post_animation_switch_hook',
+                    export_settings,
+                    blender_object,
+                    blender_action,
+                    track_name,
+                    on_type)
 
         if export_settings['gltf_force_sampling'] is True:
             if export_settings['vtree'].nodes[obj_uuid].blender_object.type == "ARMATURE":