Cleanup: decentralize .blend I/O for space types

This adds callbacks to `SpaceType` to make each editor responsible to
manage their own .blend I/O, and moves relevant code from `screen.c`
to the editors files.

Differential Revision: D11069

2 files changed, 12 insertions, 1 deletions

diff --git a/source/blender/editors/space_topbar/CMakeLists.txt b/source/blender/editors/space_topbar/CMakeLists.txt
index f529c855e6d..a0854bd688c 100644
--- a/source/blender/editors/space_topbar/CMakeLists.txt
+++ b/source/blender/editors/space_topbar/CMakeLists.txt
@@ -11,6 +11,9 @@ set(INC
   ../../makesrna
   ../../windowmanager
   ../../../../intern/guardedalloc
+
+  # dna_type_offsets.h
+  ${CMAKE_CURRENT_BINARY_DIR}/../../makesdna/intern
   # RNA_prototypes.h
   ${CMAKE_BINARY_DIR}/source/blender/makesrna
 )
@@ -27,5 +30,5 @@ set(LIB
 blender_add_lib(bf_editor_space_topbar "${SRC}" "${INC}" "${INC_SYS}" "${LIB}")
 
 
-# RNA_prototypes.h
+# RNA_prototypes.h dna_type_offsets.h
 add_dependencies(bf_editor_space_topbar bf_rna)
diff --git a/source/blender/editors/space_topbar/space_topbar.c b/source/blender/editors/space_topbar/space_topbar.c
index e4826ed5964..aa5689bd047 100644
--- a/source/blender/editors/space_topbar/space_topbar.c
+++ b/source/blender/editors/space_topbar/space_topbar.c
@@ -28,6 +28,8 @@
 #include "UI_resources.h"
 #include "UI_view2d.h"
 
+#include "BLO_read_write.h"
+
 #include "RNA_access.h"
 
 #include "WM_api.h"
@@ -282,6 +284,11 @@ static void undo_history_menu_register(void)
   WM_menutype_add(mt);
 }
 
+static void topbar_blend_write(BlendWriter *writer, SpaceLink *sl)
+{
+  BLO_write_struct(writer, SpaceTopBar, sl);
+}
+
 void ED_spacetype_topbar(void)
 {
   SpaceType *st = MEM_callocN(sizeof(SpaceType), "spacetype topbar");
@@ -296,6 +303,7 @@ void ED_spacetype_topbar(void)
   st->duplicate = topbar_duplicate;
   st->operatortypes = topbar_operatortypes;
   st->keymap = topbar_keymap;
+  st->blend_write = topbar_blend_write;
 
   /* regions: main window */
   art = MEM_callocN(sizeof(ARegionType), "spacetype topbar main region");