XR: Allow variable count of action map subactions

Previously, the number of action map subactions was limited to two per
action (identified by user_path0, user_path1), however for devices with
more than two user paths (e.g. Vive Tracker) it will be useful to
support a variable amount instead.

For example, a single pose action could then be used to query the
positions of all connected trackers, with each tracker having its own
subaction tracking space.

NOTE: This introduces breaking changes for the XR Python API as follows:
- XrActionMapItem: The new `user_paths` collection property
replaces the `user_path0`/`user_path1` properties.
- XrActionMapBinding: The new `component_paths` collection property
replaces the `component_path0`/`component_path1` properties.

Reviewed By: Severin

Differential Revision: https://developer.blender.org/D13949

1 files changed, 3 insertions, 5 deletions

diff --git a/source/blender/windowmanager/WM_api.h b/source/blender/windowmanager/WM_api.h
index c1281632cc1..49fbf2c27e1 100644
--- a/source/blender/windowmanager/WM_api.h
+++ b/source/blender/windowmanager/WM_api.h
@@ -1583,8 +1583,7 @@ bool WM_xr_action_create(wmXrData *xr,
                          const char *action_set_name,
                          const char *action_name,
                          eXrActionType type,
-                         unsigned int count_subaction_paths,
-                         const char **subaction_paths,
+                         const ListBase *user_paths,
                          struct wmOperatorType *ot,
                          struct IDProperty *op_properties,
                          const char *haptic_name,
@@ -1599,9 +1598,8 @@ bool WM_xr_action_binding_create(wmXrData *xr,
                                  const char *action_set_name,
                                  const char *action_name,
                                  const char *profile_path,
-                                 unsigned int count_subaction_paths,
-                                 const char **subaction_paths,
-                                 const char **component_paths,
+                                 const ListBase *user_paths,
+                                 const ListBase *component_paths,
                                  const float *float_thresholds,
                                  const eXrAxisFlag *axis_flags,
                                  const struct wmXrPose *poses);