NLA: improve visibility of action & active channel

Selecting Action channel in NLA now sets the context in the N-panel. The
actively selected channel is now also drawn in a different way, so that
it's visible which one is selected.

Old:
- The NLA sidebar didn't refresh with the creation of a new action.
- There was no indication of the action channel being selected.

New:
- NLA side bar now refreshed when keyframes are added (new action is created)
- Clicking on the action channel now gives visual indication of being selected

Reviewed By: RiggingDojo, sybren

Maniphest Tasks: T97372

Differential Revision: https://developer.blender.org/D14820

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/editors/space_nla/nla_buttons.c b/source/blender/editors/space_nla/nla_buttons.c
index 5e4389279eb..f89bfd2a36a 100644
--- a/source/blender/editors/space_nla/nla_buttons.c
+++ b/source/blender/editors/space_nla/nla_buttons.c
@@ -107,6 +107,7 @@ bool nla_panel_context(const bContext *C,
         found = 1;
         break;
       }
+      case ANIMTYPE_NLAACTION:
       case ANIMTYPE_SCENE: /* Top-Level Widgets doubling up as datablocks */
       case ANIMTYPE_OBJECT:
       case ANIMTYPE_DSMAT: /* Datablock AnimData Expanders */