enbable msgbus at first activation

2.1.4

- fixed: layer change msgbus not working at first activation of the addon

CHANGELOG.md

@@ -1,6 +1,10 @@
 # Changelog
 
 
+2.1.4
+
+- fixed: layer change msgbus not working at first activation of the addon
+
 2.1.3
 
 - fixed: decoralate Prefix and Suffix UI_lists scroll

OP_layer_manager.py

@@ -675,8 +675,8 @@ def obj_layer_name_callback():
     # print('inc:', res.group('inc'))
     bpy.context.scene.gptoolprops['layer_name'] = res.group('name')
 
-@persistent
-def subscribe_handler(dummy):
+
+def subscribe_layer_change():
     subscribe_to = (bpy.types.GreasePencilLayers, "active_index")
     bpy.msgbus.subscribe_rna(
         key=subscribe_to,
@@ -690,6 +690,9 @@ def subscribe_handler(dummy):
         options={'PERSISTENT'},
     )
 
+@persistent
+def subscribe_layer_change_handler(dummy):
+    subscribe_layer_change()
 
 ##--- Add layers
 
@@ -813,12 +816,15 @@ def register():
     bpy.types.DATA_PT_gpencil_layers.prepend(layer_name_builder_ui)
     bpy.types.DOPESHEET_HT_header.append(gpencil_dopesheet_header)
     bpy.types.GPENCIL_MT_layer_context_menu.append(gpencil_layer_dropdown_menu)
-    bpy.app.handlers.load_post.append(subscribe_handler) # need to restart after first activation
+    bpy.app.handlers.load_post.append(subscribe_layer_change_handler)
     register_keymaps()
 
+    # Directly set msgbus to work at first addon activation
+    bpy.app.timers.register(subscribe_layer_change, first_interval=1)
+
 def unregister():
     unregister_keymaps()
-    bpy.app.handlers.load_post.remove(subscribe_handler)
+    bpy.app.handlers.load_post.remove(subscribe_layer_change_handler)
     bpy.types.GPENCIL_MT_layer_context_menu.remove(gpencil_layer_dropdown_menu)
     bpy.types.DOPESHEET_HT_header.remove(gpencil_dopesheet_header)
     bpy.types.DATA_PT_gpencil_layers.remove(layer_name_builder_ui)

__init__.py

@@ -4,7 +4,7 @@ bl_info = {
 "name": "GP toolbox",
 "description": "Tool set for Grease Pencil in animation production",
 "author": "Samuel Bernou, Christophe Seux",
-"version": (2, 1, 3),
+"version": (2, 1, 4),
 "blender": (3, 0, 0),
 "location": "Sidebar (N menu) > Gpencil > Toolbox / Gpencil properties",
 "warning": "",