VSE: Disable interactivity in combined view

Combined view of timeline and preview causes seemingly unpredictable
behavior after some operators have been allowed to run in preview
region.

Disable new features in this combined view, so behavior should be
consistent with previous versions.

ref: https://developer.blender.org/T92584

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D13419

1 files changed, 23 insertions, 3 deletions

diff --git a/source/blender/editors/space_sequencer/sequencer_select.c b/source/blender/editors/space_sequencer/sequencer_select.c
index 8a8a24f08ff..cf18429862e 100644
--- a/source/blender/editors/space_sequencer/sequencer_select.c
+++ b/source/blender/editors/space_sequencer/sequencer_select.c
@@ -416,8 +416,11 @@ static int sequencer_de_select_all_exec(bContext *C, wmOperator *op)
   Editing *ed = SEQ_editing_get(scene);
   Sequence *seq;
 
-  const bool is_preview = sequencer_view_preview_poll(C);
+  const bool is_preview = sequencer_view_has_preview_poll(C);
   if (is_preview) {
+    if (!sequencer_view_preview_only_poll(C)) {
+      return OPERATOR_CANCELLED;
+    }
     SEQ_query_rendered_strips_to_tag(ed->seqbasep, scene->r.cfra, 0);
   }
 
@@ -494,8 +497,11 @@ static int sequencer_select_inverse_exec(bContext *C, wmOperator *UNUSED(op))
   Editing *ed = SEQ_editing_get(scene);
   Sequence *seq;
 
-  const bool is_preview = sequencer_view_preview_poll(C);
+  const bool is_preview = sequencer_view_has_preview_poll(C);
   if (is_preview) {
+    if (!sequencer_view_preview_only_poll(C)) {
+      return OPERATOR_CANCELLED;
+    }
     SEQ_query_rendered_strips_to_tag(ed->seqbasep, scene->r.cfra, 0);
   }
 
@@ -866,6 +872,9 @@ static int sequencer_select_exec(bContext *C, wmOperator *op)
   }
 
   if (region->regiontype == RGN_TYPE_PREVIEW) {
+    if (!sequencer_view_preview_only_poll(C)) {
+      return OPERATOR_CANCELLED;
+    }
     const SpaceSeq *sseq = CTX_wm_space_seq(C);
     if (sseq->mainb != SEQ_DRAW_IMG_IMBUF) {
       return OPERATOR_CANCELLED;
@@ -1612,6 +1621,9 @@ static int sequencer_box_select_exec(bContext *C, wmOperator *op)
 
   ARegion *region = CTX_wm_region(C);
   if (region->regiontype == RGN_TYPE_PREVIEW) {
+    if (!sequencer_view_preview_only_poll(C)) {
+      return OPERATOR_CANCELLED;
+    }
     seq_box_select_seq_from_preview(C, &rectf, sel_op);
     sequencer_select_do_updates(C, scene);
     return OPERATOR_FINISHED;
@@ -1671,6 +1683,11 @@ static int sequencer_box_select_invoke(bContext *C, wmOperator *op, const wmEven
 {
   Scene *scene = CTX_data_scene(C);
   View2D *v2d = &CTX_wm_region(C)->v2d;
+  ARegion *region = CTX_wm_region(C);
+
+  if (region->regiontype == RGN_TYPE_PREVIEW && !sequencer_view_preview_only_poll(C)) {
+    return OPERATOR_CANCELLED;
+  }
 
   const bool tweak = RNA_boolean_get(op->ptr, "tweak");
 
@@ -2003,8 +2020,11 @@ static int sequencer_select_grouped_exec(bContext *C, wmOperator *op)
   ListBase *seqbase = SEQ_active_seqbase_get(SEQ_editing_get(scene));
   Sequence *actseq = SEQ_select_active_get(scene);
 
-  const bool is_preview = sequencer_view_preview_poll(C);
+  const bool is_preview = sequencer_view_has_preview_poll(C);
   if (is_preview) {
+    if (!sequencer_view_preview_only_poll(C)) {
+      return OPERATOR_CANCELLED;
+    }
     SEQ_query_rendered_strips_to_tag(seqbase, scene->r.cfra, 0);
     if (actseq && actseq->tmp_tag == false) {
       actseq = NULL;