Sequencer: Disable Refresh Sequencer button while rendering

This code is not thread-safe and there's no easy way to synchronize
render and viewport threads for this operation, so for until we've
got some nicer solution we just disable dangerous buttons.

1 files changed, 9 insertions, 1 deletions

diff --git a/source/blender/editors/space_sequencer/sequencer_edit.c b/source/blender/editors/space_sequencer/sequencer_edit.c
index c16b0b2dc3b..ad7b49afc2f 100644
--- a/source/blender/editors/space_sequencer/sequencer_edit.c
+++ b/source/blender/editors/space_sequencer/sequencer_edit.c
@@ -1927,6 +1927,14 @@ void SEQUENCER_OT_reload(struct wmOperatorType *ot)
 }
 
 /* reload operator */
+static int sequencer_refresh_all_poll(bContext *C)
+{
+	if (G.is_rendering) {
+		return 0;
+	}
+	return sequencer_edit_poll(C);
+}
+
 static int sequencer_refresh_all_exec(bContext *C, wmOperator *UNUSED(op))
 {
 	Scene *scene = CTX_data_scene(C);
@@ -1948,7 +1956,7 @@ void SEQUENCER_OT_refresh_all(struct wmOperatorType *ot)
 	
 	/* api callbacks */
 	ot->exec = sequencer_refresh_all_exec;
-	ot->poll = sequencer_edit_poll;
+	ot->poll = sequencer_refresh_all_poll;
 }
 
 static int sequencer_reassign_inputs_exec(bContext *C, wmOperator *op)