UI: Add shortcuts for grease pencil modifier panels

See rB1fa40c9f8a81 for more details. The implementation is the same.
The only difference to the mesh modifier  commit is a slight rework of
edit_modifier_invoke_properties in order to pass through to check for
other keymap items with the same shortcut.

1 files changed, 4 insertions, 3 deletions

diff --git a/source/blender/editors/object/object_intern.h b/source/blender/editors/object/object_intern.h
index be1c29b0010..afc87c0caba 100644
--- a/source/blender/editors/object/object_intern.h
+++ b/source/blender/editors/object/object_intern.h
@@ -153,9 +153,10 @@ bool edit_modifier_poll_generic(struct bContext *C,
                                 const bool is_editmode_allowed);
 bool edit_modifier_poll(struct bContext *C);
 void edit_modifier_properties(struct wmOperatorType *ot);
-int edit_modifier_invoke_properties(struct bContext *C,
-                                    struct wmOperator *op,
-                                    const struct wmEvent *event);
+bool edit_modifier_invoke_properties(struct bContext *C,
+                                     struct wmOperator *op,
+                                     const struct wmEvent *event,
+                                     int *r_retval);
 struct ModifierData *edit_modifier_property_get(struct wmOperator *op,
                                                 struct Object *ob,
                                                 int type);