VSE: Refactor meta operators

Move low level logic to module code and versioning logic to versioning code.

Metas strip position was handled in diffrent way compared to other strips.
This was introduced in c8b0d25794be as bugfix for T28158.
I disagree with such design. Meta strips should be handled in same way as
any other strips.

I have tested this change and haven't found any problems.
No problems after checking T28158 as well.
There should be no functional changes on user level.

Reviewed By: campbellbarton

Differential Revision: https://developer.blender.org/D9972

1 files changed, 25 insertions, 0 deletions

diff --git a/source/blender/editors/space_sequencer/sequencer_select.c b/source/blender/editors/space_sequencer/sequencer_select.c
index ffcb3d35d5a..5f0a18fbd0b 100644
--- a/source/blender/editors/space_sequencer/sequencer_select.c
+++ b/source/blender/editors/space_sequencer/sequencer_select.c
@@ -360,6 +360,31 @@ static void select_neighbor_from_last(Scene *scene, int lr)
 }
 #endif
 
+void recurs_sel_seq(Sequence *seq_meta)
+{
+  Sequence *seq;
+
+  seq = seq_meta->seqbase.first;
+  while (seq) {
+
+    if (seq_meta->flag & (SEQ_LEFTSEL + SEQ_RIGHTSEL)) {
+      seq->flag &= ~SEQ_ALLSEL;
+    }
+    else if (seq_meta->flag & SELECT) {
+      seq->flag |= SELECT;
+    }
+    else {
+      seq->flag &= ~SEQ_ALLSEL;
+    }
+
+    if (seq->seqbase.first) {
+      recurs_sel_seq(seq);
+    }
+
+    seq = seq->next;
+  }
+}
+
 /** \} */
 
 /* -------------------------------------------------------------------- */