diff --git a/source/blender/blenkernel/BKE_screen.h b/source/blender/blenkernel/BKE_screen.h
index 010810ad0cc..7def41d0540 100644
--- a/source/blender/blenkernel/BKE_screen.h
+++ b/source/blender/blenkernel/BKE_screen.h
@@ -82,7 +82,8 @@ typedef struct SpaceType {
 	/* exit is called when the area is hidden or removed */
 	void (*exit)(struct wmWindowManager *, struct ScrArea *);
 	/* Listeners can react to bContext changes */
-	void (*listener)(struct bScreen *sc, struct ScrArea *, struct wmNotifier *);
+	void (*listener)(struct bScreen *sc, struct ScrArea *,
+	                 struct wmNotifier *, const struct Scene *scene);
 	
 	/* refresh context, called after filereads, ED_area_tag_refresh() */
 	void (*refresh)(const struct bContext *, struct ScrArea *);
@@ -133,8 +134,9 @@ typedef struct ARegionType {
 	/* draw entirely, view changes should be handled here */
 	void (*draw)(const struct bContext *, struct ARegion *);
 	/* contextual changes should be handled here */
-	void (*listener)(struct bScreen *sc, struct ScrArea *, struct ARegion *, struct wmNotifier *);
-	
+	void (*listener)(struct bScreen *, struct ScrArea *, struct ARegion *,
+	                 struct wmNotifier *, const struct Scene *scene);
+
 	void (*free)(struct ARegion *);
 
 	/* split region, copy data optionally */
diff --git a/source/blender/editors/include/ED_screen.h b/source/blender/editors/include/ED_screen.h
index f5f66a07aea..74cfe13e1dc 100644
--- a/source/blender/editors/include/ED_screen.h
+++ b/source/blender/editors/include/ED_screen.h
@@ -52,7 +52,9 @@ struct rcti;
 struct Main;
 
 /* regions */
-void    ED_region_do_listen(struct bScreen *sc, struct ScrArea *sa, struct ARegion *ar, struct wmNotifier *note);
+void    ED_region_do_listen(
+        struct bScreen *sc, struct ScrArea *sa, struct ARegion *ar,
+        struct wmNotifier *note, const Scene *scene);
 void    ED_region_do_draw(struct bContext *C, struct ARegion *ar);
 void    ED_region_exit(struct bContext *C, struct ARegion *ar);
 void    ED_region_pixelspace(struct ARegion *ar);
@@ -87,7 +89,7 @@ int     ED_area_header_switchbutton(const struct bContext *C, struct uiBlock *bl
 void    ED_area_initialize(struct wmWindowManager *wm, struct wmWindow *win, struct ScrArea *sa);
 void    ED_area_exit(struct bContext *C, struct ScrArea *sa);
 int     ED_screen_area_active(const struct bContext *C);
-void    ED_area_do_listen(struct bScreen *sc, ScrArea *sa, struct wmNotifier *note);
+void    ED_area_do_listen(struct bScreen *sc, ScrArea *sa, struct wmNotifier *note, const Scene *scene);
 void    ED_area_tag_redraw(ScrArea *sa);
 void    ED_area_tag_redraw_regiontype(ScrArea *sa, int type);
 void    ED_area_tag_refresh(ScrArea *sa);
diff --git a/source/blender/editors/interface/interface_regions.c b/source/blender/editors/interface/interface_regions.c
index 6ec0c39a76d..b1f3482e109 100644
--- a/source/blender/editors/interface/interface_regions.c
+++ b/source/blender/editors/interface/interface_regions.c
@@ -1702,7 +1702,7 @@ static void ui_block_region_draw(const bContext *C, ARegion *ar)
  * Use to refresh centered popups on screen resizing (for splash).
  */
 static void ui_block_region_popup_window_listener(
-        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	switch (wmn->category) {
 		case NC_WINDOW:
diff --git a/source/blender/editors/screen/area.c b/source/blender/editors/screen/area.c
index 57c8d19f52f..51dcdf2e999 100644
--- a/source/blender/editors/screen/area.c
+++ b/source/blender/editors/screen/area.c
@@ -127,7 +127,7 @@ void ED_region_pixelspace(ARegion *ar)
 }
 
 /* only exported for WM */
-void ED_region_do_listen(bScreen *sc, ScrArea *sa, ARegion *ar, wmNotifier *note)
+void ED_region_do_listen(bScreen *sc, ScrArea *sa, ARegion *ar, wmNotifier *note, const Scene *scene)
 {
 	/* generic notes first */
 	switch (note->category) {
@@ -141,15 +141,15 @@ void ED_region_do_listen(bScreen *sc, ScrArea *sa, ARegion *ar, wmNotifier *note
 	}
 
 	if (ar->type && ar->type->listener)
-		ar->type->listener(sc, sa, ar, note);
+		ar->type->listener(sc, sa, ar, note, scene);
 }
 
 /* only exported for WM */
-void ED_area_do_listen(bScreen *sc, ScrArea *sa, wmNotifier *note)
+void ED_area_do_listen(bScreen *sc, ScrArea *sa, wmNotifier *note, const Scene *scene)
 {
 	/* no generic notes? */
 	if (sa->type && sa->type->listener) {
-		sa->type->listener(sc, sa, note);
+		sa->type->listener(sc, sa, note, scene);
 	}
 }
 
@@ -697,7 +697,7 @@ void ED_area_headerprint(ScrArea *sa, const char *str)
 /* ************************************************************ */
 
 
-static void area_azone_initialize(wmWindow *win, bScreen *screen, ScrArea *sa)
+static void area_azone_initialize(wmWindow *win, const bScreen *screen, ScrArea *sa)
 {
 	AZone *az;
 	
diff --git a/source/blender/editors/space_action/space_action.c b/source/blender/editors/space_action/space_action.c
index 83655a2ba9e..e76d83715a2 100644
--- a/source/blender/editors/space_action/space_action.c
+++ b/source/blender/editors/space_action/space_action.c
@@ -308,7 +308,9 @@ static void action_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void action_channel_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void action_channel_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -351,7 +353,9 @@ static void action_channel_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(
 	}
 }
 
-static void action_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void action_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -400,7 +404,8 @@ static void action_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa)
 }
 
 /* editor level listener */
-static void action_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void action_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	SpaceAction *saction = (SpaceAction *)sa->spacedata.first;
 	
@@ -507,7 +512,9 @@ static void action_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
 	}
 }
 
-static void action_header_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void action_header_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	// SpaceAction *saction = (SpaceAction *)sa->spacedata.first;
 
@@ -559,7 +566,9 @@ static void action_buttons_area_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void action_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void action_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_buttons/space_buttons.c b/source/blender/editors/space_buttons/space_buttons.c
index 608287939bd..47297e84242 100644
--- a/source/blender/editors/space_buttons/space_buttons.c
+++ b/source/blender/editors/space_buttons/space_buttons.c
@@ -220,7 +220,8 @@ static void buttons_area_redraw(ScrArea *sa, short buttons)
 }
 
 /* reused! */
-static void buttons_area_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void buttons_area_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	SpaceButs *sbuts = sa->spacedata.first;
 
diff --git a/source/blender/editors/space_clip/space_clip.c b/source/blender/editors/space_clip/space_clip.c
index a480338798d..a142d40e7b9 100644
--- a/source/blender/editors/space_clip/space_clip.c
+++ b/source/blender/editors/space_clip/space_clip.c
@@ -329,7 +329,7 @@ static SpaceLink *clip_duplicate(SpaceLink *sl)
 	return (SpaceLink *)scn;
 }
 
-static void clip_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void clip_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1238,7 +1238,9 @@ static void clip_main_region_draw(const bContext *C, ARegion *ar)
 	}
 }
 
-static void clip_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void clip_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1349,7 +1351,9 @@ static void clip_preview_region_draw(const bContext *C, ARegion *ar)
 		dopesheet_region_draw(C, ar);
 }
 
-static void clip_preview_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar), wmNotifier *UNUSED(wmn))
+static void clip_preview_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar),
+        wmNotifier *UNUSED(wmn), const Scene *UNUSED(scene))
 {
 }
 
@@ -1390,7 +1394,9 @@ static void clip_channels_region_draw(const bContext *C, ARegion *ar)
 	UI_view2d_view_restore(C);
 }
 
-static void clip_channels_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar), wmNotifier *UNUSED(wmn))
+static void clip_channels_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar),
+        wmNotifier *UNUSED(wmn), const Scene *UNUSED(scene))
 {
 }
 
@@ -1407,7 +1413,9 @@ static void clip_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void clip_header_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void clip_header_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1447,7 +1455,9 @@ static void clip_tools_region_draw(const bContext *C, ARegion *ar)
 
 /****************** tool properties region ******************/
 
-static void clip_props_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void clip_props_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1492,7 +1502,9 @@ static void clip_properties_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void clip_properties_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void clip_properties_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_console/space_console.c b/source/blender/editors/space_console/space_console.c
index 97a85bce006..9a2f4b5d431 100644
--- a/source/blender/editors/space_console/space_console.c
+++ b/source/blender/editors/space_console/space_console.c
@@ -368,7 +368,9 @@ static void console_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void console_main_region_listener(bScreen *UNUSED(sc), ScrArea *sa, ARegion *ar, wmNotifier *wmn)
+static void console_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	// SpaceInfo *sinfo = sa->spacedata.first;
 
diff --git a/source/blender/editors/space_file/space_file.c b/source/blender/editors/space_file/space_file.c
index 374db92297d..269b1146ba0 100644
--- a/source/blender/editors/space_file/space_file.c
+++ b/source/blender/editors/space_file/space_file.c
@@ -291,7 +291,7 @@ static void file_refresh(const bContext *C, ScrArea *sa)
 	}
 }
 
-static void file_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void file_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	SpaceFile *sfile = (SpaceFile *)sa->spacedata.first;
 
@@ -333,7 +333,9 @@ static void file_main_region_init(wmWindowManager *wm, ARegion *ar)
 	WM_event_add_keymap_handler_bb(&ar->handlers, keymap, &ar->v2d.mask, &ar->winrct);
 }
 
-static void file_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void file_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -597,7 +599,9 @@ static void file_tools_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void file_tools_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar), wmNotifier *UNUSED(wmn))
+static void file_tools_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar),
+        wmNotifier *UNUSED(wmn), const Scene *UNUSED(scene))
 {
 #if 0
 	/* context changes */
@@ -659,7 +663,9 @@ static void file_ui_region_draw(const bContext *C, ARegion *ar)
 	UI_view2d_view_restore(C);
 }
 
-static void file_ui_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void file_ui_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_graph/space_graph.c b/source/blender/editors/space_graph/space_graph.c
index 92d44130098..980ee5aeffe 100644
--- a/source/blender/editors/space_graph/space_graph.c
+++ b/source/blender/editors/space_graph/space_graph.c
@@ -413,7 +413,9 @@ static void graph_buttons_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void graph_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void graph_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -468,7 +470,7 @@ static void graph_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), AReg
 }
 
 /* editor level listener */
-static void graph_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void graph_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	SpaceIpo *sipo = (SpaceIpo *)sa->spacedata.first;
 	
diff --git a/source/blender/editors/space_image/space_image.c b/source/blender/editors/space_image/space_image.c
index 754dcc503c4..4b51a50d096 100644
--- a/source/blender/editors/space_image/space_image.c
+++ b/source/blender/editors/space_image/space_image.c
@@ -443,9 +443,8 @@ static void image_refresh(const bContext *C, ScrArea *sa)
 	}
 }
 
-static void image_listener(bScreen *sc, ScrArea *sa, wmNotifier *wmn)
+static void image_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *scene)
 {
-	Scene *scene = sc->scene;
 	SceneLayer *sl = BKE_scene_layer_context_active(scene);
 	SpaceImage *sima = (SpaceImage *)sa->spacedata.first;
 	
@@ -807,7 +806,9 @@ static void image_main_region_draw(const bContext *C, ARegion *ar)
 #endif
 }
 
-static void image_main_region_listener(bScreen *UNUSED(sc), ScrArea *sa, ARegion *ar, wmNotifier *wmn)
+static void image_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -851,7 +852,9 @@ static void image_buttons_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void image_buttons_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void image_buttons_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -924,7 +927,9 @@ static void image_tools_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void image_tools_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void image_tools_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -970,7 +975,9 @@ static void image_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void image_header_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void image_header_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_info/space_info.c b/source/blender/editors/space_info/space_info.c
index 21777fd8afa..ab08b288470 100644
--- a/source/blender/editors/space_info/space_info.c
+++ b/source/blender/editors/space_info/space_info.c
@@ -236,7 +236,9 @@ static void info_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void info_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void info_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	// SpaceInfo *sinfo = sa->spacedata.first;
 
@@ -251,7 +253,9 @@ static void info_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa),
 	}
 }
 
-static void info_header_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void info_header_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_logic/space_logic.c b/source/blender/editors/space_logic/space_logic.c
index 12ca141128b..af90ef487e0 100644
--- a/source/blender/editors/space_logic/space_logic.c
+++ b/source/blender/editors/space_logic/space_logic.c
@@ -198,7 +198,9 @@ static void logic_refresh(const bContext *UNUSED(C), ScrArea *UNUSED(sa))
 
 }
 
-static void logic_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void logic_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_nla/space_nla.c b/source/blender/editors/space_nla/space_nla.c
index 3b5604087b9..a71f2f20a3f 100644
--- a/source/blender/editors/space_nla/space_nla.c
+++ b/source/blender/editors/space_nla/space_nla.c
@@ -353,7 +353,9 @@ static void nla_buttons_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void nla_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void nla_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -386,7 +388,9 @@ static void nla_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegio
 }
 
 
-static void nla_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void nla_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -431,7 +435,9 @@ static void nla_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), A
 	}
 }
 
-static void nla_channel_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void nla_channel_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -466,7 +472,7 @@ static void nla_channel_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa)
 }
 
 /* editor level listener */
-static void nla_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void nla_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_node/space_node.c b/source/blender/editors/space_node/space_node.c
index bbdf6feef01..235eadd6f51 100644
--- a/source/blender/editors/space_node/space_node.c
+++ b/source/blender/editors/space_node/space_node.c
@@ -381,12 +381,12 @@ static void node_init(struct wmWindowManager *UNUSED(wm), ScrArea *UNUSED(sa))
 
 }
 
-static void node_area_listener(bScreen *sc, ScrArea *sa, wmNotifier *wmn)
+static void node_area_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *scene)
 {
 	/* note, ED_area_tag_refresh will re-execute compositor */
 	SpaceNode *snode = sa->spacedata.first;
 	/* shaderfrom is only used for new shading nodes, otherwise all shaders are from objects */
-	short shader_type = BKE_scene_use_new_shading_nodes(sc->scene) ? snode->shaderfrom : SNODE_SHADER_OBJECT;
+	short shader_type = BKE_scene_use_new_shading_nodes(scene) ? snode->shaderfrom : SNODE_SHADER_OBJECT;
 
 	/* preview renders */
 	switch (wmn->category) {
@@ -737,7 +737,9 @@ static void node_header_region_draw(const bContext *C, ARegion *ar)
 }
 
 /* used for header + main region */
-static void node_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void node_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_outliner/space_outliner.c b/source/blender/editors/space_outliner/space_outliner.c
index 0014b1f048e..b632db48caa 100644
--- a/source/blender/editors/space_outliner/space_outliner.c
+++ b/source/blender/editors/space_outliner/space_outliner.c
@@ -300,7 +300,9 @@ static void outliner_main_region_free(ARegion *UNUSED(ar))
 	
 }
 
-static void outliner_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void outliner_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -423,7 +425,9 @@ static void outliner_header_region_free(ARegion *UNUSED(ar))
 {
 }
 
-static void outliner_header_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void outliner_header_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_script/space_script.c b/source/blender/editors/space_script/space_script.c
index 4228635ccd6..fb8de02d3bd 100644
--- a/source/blender/editors/space_script/space_script.c
+++ b/source/blender/editors/space_script/space_script.c
@@ -176,7 +176,9 @@ static void script_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void script_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar), wmNotifier *UNUSED(wmn))
+static void script_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar),
+        wmNotifier *UNUSED(wmn), const Scene *UNUSED(scene))
 {
 	/* context changes */
 	// XXX - Todo, need the ScriptSpace accessible to get the python script to run.
diff --git a/source/blender/editors/space_sequencer/space_sequencer.c b/source/blender/editors/space_sequencer/space_sequencer.c
index a2a80297041..b3ec2948c8c 100644
--- a/source/blender/editors/space_sequencer/space_sequencer.c
+++ b/source/blender/editors/space_sequencer/space_sequencer.c
@@ -337,7 +337,8 @@ static SpaceLink *sequencer_duplicate(SpaceLink *sl)
 	return (SpaceLink *)sseqn;
 }
 
-static void sequencer_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void sequencer_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -490,7 +491,9 @@ static void sequencer_main_region_draw(const bContext *C, ARegion *ar)
 	draw_timeline_seq(C, ar);
 }
 
-static void sequencer_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void sequencer_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -596,7 +599,9 @@ static void sequencer_preview_region_draw(const bContext *C, ARegion *ar)
 	}
 }
 
-static void sequencer_preview_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void sequencer_preview_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -662,7 +667,9 @@ static void sequencer_buttons_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void sequencer_buttons_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void sequencer_buttons_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_text/space_text.c b/source/blender/editors/space_text/space_text.c
index 686a10fc785..1cea90d52db 100644
--- a/source/blender/editors/space_text/space_text.c
+++ b/source/blender/editors/space_text/space_text.c
@@ -125,7 +125,7 @@ static SpaceLink *text_duplicate(SpaceLink *sl)
 	return (SpaceLink *)stextn;
 }
 
-static void text_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void text_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	SpaceText *st = sa->spacedata.first;
 
diff --git a/source/blender/editors/space_time/space_time.c b/source/blender/editors/space_time/space_time.c
index 9b149366670..9a3ae2dcd70 100644
--- a/source/blender/editors/space_time/space_time.c
+++ b/source/blender/editors/space_time/space_time.c
@@ -468,7 +468,7 @@ static void time_draw_keyframes(const bContext *C, ARegion *ar)
 /* ---------------- */
 
 /* editor level listener */
-static void time_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn)
+static void time_listener(bScreen *UNUSED(sc), ScrArea *sa, wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 
 	/* mainly for updating cache display */
@@ -609,7 +609,9 @@ static void time_main_region_draw(const bContext *C, ARegion *ar)
 	UI_view2d_scrollers_free(scrollers);
 }
 
-static void time_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void time_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -654,7 +656,9 @@ static void time_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void time_header_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void time_header_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
diff --git a/source/blender/editors/space_userpref/space_userpref.c b/source/blender/editors/space_userpref/space_userpref.c
index aeba4a86f3e..f640fe63f93 100644
--- a/source/blender/editors/space_userpref/space_userpref.c
+++ b/source/blender/editors/space_userpref/space_userpref.c
@@ -136,12 +136,16 @@ static void userpref_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void userpref_main_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar), wmNotifier *UNUSED(wmn))
+static void userpref_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar),
+        wmNotifier *UNUSED(wmn), const Scene *UNUSED(scene))
 {
 	/* context changes */
 }
 
-static void userpref_header_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar), wmNotifier *UNUSED(wmn))
+static void userpref_header_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *UNUSED(ar),
+        wmNotifier *UNUSED(wmn), const Scene *UNUSED(scene))
 {
 	/* context changes */
 #if 0
diff --git a/source/blender/editors/space_view3d/space_view3d.c b/source/blender/editors/space_view3d/space_view3d.c
index 99caa54238d..e6bde8463ef 100644
--- a/source/blender/editors/space_view3d/space_view3d.c
+++ b/source/blender/editors/space_view3d/space_view3d.c
@@ -801,7 +801,7 @@ static void *view3d_main_region_duplicate(void *poin)
 	return NULL;
 }
 
-static void view3d_recalc_used_layers(ARegion *ar, wmNotifier *wmn, Scene *scene)
+static void view3d_recalc_used_layers(ARegion *ar, wmNotifier *wmn, const Scene *scene)
 {
 	wmWindow *win = wmn->wm->winactive;
 	ScrArea *sa;
@@ -831,9 +831,10 @@ static void view3d_recalc_used_layers(ARegion *ar, wmNotifier *wmn, Scene *scene
 	}
 }
 
-static void view3d_main_region_listener(bScreen *sc, ScrArea *sa, ARegion *ar, wmNotifier *wmn)
+static void view3d_main_region_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, ARegion *ar,
+        wmNotifier *wmn, const Scene *scene)
 {
-	Scene *scene = sc->scene;
 	View3D *v3d = sa->spacedata.first;
 	RegionView3D *rv3d = ar->regiondata;
 	wmManipulatorMap *mmap = ar->manipulator_map;
@@ -1105,7 +1106,9 @@ static void view3d_header_region_draw(const bContext *C, ARegion *ar)
 	ED_region_header(C, ar);
 }
 
-static void view3d_header_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void view3d_header_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1151,7 +1154,9 @@ static void view3d_buttons_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, NULL, -1, true);
 }
 
-static void view3d_buttons_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void view3d_buttons_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1257,7 +1262,9 @@ static void view3d_tools_region_draw(const bContext *C, ARegion *ar)
 	ED_region_panels(C, ar, CTX_data_mode_string(C), -1, true);
 }
 
-static void view3d_props_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar, wmNotifier *wmn)
+static void view3d_props_region_listener(
+        bScreen *UNUSED(sc), ScrArea *UNUSED(sa), ARegion *ar,
+        wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	/* context changes */
 	switch (wmn->category) {
@@ -1277,7 +1284,8 @@ static void view3d_props_region_listener(bScreen *UNUSED(sc), ScrArea *UNUSED(sa
 }
 
 /* area (not region) level listener */
-static void space_view3d_listener(bScreen *UNUSED(sc), ScrArea *sa, struct wmNotifier *wmn)
+static void space_view3d_listener(
+        bScreen *UNUSED(sc), ScrArea *sa, struct wmNotifier *wmn, const Scene *UNUSED(scene))
 {
 	View3D *v3d = sa->spacedata.first;
 
diff --git a/source/blender/windowmanager/intern/wm_event_system.c b/source/blender/windowmanager/intern/wm_event_system.c
index 7f7571aa9ee..5f28bcc32ed 100644
--- a/source/blender/windowmanager/intern/wm_event_system.c
+++ b/source/blender/windowmanager/intern/wm_event_system.c
@@ -338,12 +338,13 @@ void wm_event_do_notifiers(bContext *C)
 	/* the notifiers are sent without context, to keep it clean */
 	while ((note = BLI_pophead(&wm->queue))) {
 		for (win = wm->windows.first; win; win = win->next) {
+			Scene *scene = win->screen->scene;
 			
 			/* filter out notifiers */
 			if (note->category == NC_SCREEN && note->reference && note->reference != win->screen) {
 				/* pass */
 			}
-			else if (note->category == NC_SCENE && note->reference && note->reference != win->screen->scene) {
+			else if (note->category == NC_SCENE && note->reference && note->reference != scene) {
 				/* pass */
 			}
 			else {
@@ -357,13 +358,13 @@ void wm_event_do_notifiers(bContext *C)
 				ED_screen_do_listen(C, note);
 
 				for (ar = win->screen->regionbase.first; ar; ar = ar->next) {
-					ED_region_do_listen(win->screen, NULL, ar, note);
+					ED_region_do_listen(win->screen, NULL, ar, note, scene);
 				}
 				
 				for (sa = win->screen->areabase.first; sa; sa = sa->next) {
-					ED_area_do_listen(win->screen, sa, note);
+					ED_area_do_listen(win->screen, sa, note, scene);
 					for (ar = sa->regionbase.first; ar; ar = ar->next) {
-						ED_region_do_listen(win->screen, sa, ar, note);
+						ED_region_do_listen(win->screen, sa, ar, note, scene);
 					}
 				}
 			}