2 files changed, 33 insertions, 0 deletions

diff --git a/source/blender/sequencer/SEQ_clipboard.h b/source/blender/sequencer/SEQ_clipboard.h
index 4b2bf69a8ac..ea7f01e6ae3 100644
--- a/source/blender/sequencer/SEQ_clipboard.h
+++ b/source/blender/sequencer/SEQ_clipboard.h
@@ -29,12 +29,16 @@ extern "C" {
 
 struct ListBase;
 struct Main;
+struct Scene;
+struct Sequence;
 
 extern struct ListBase seqbase_clipboard;
 extern int seqbase_clipboard_frame;
 void SEQ_clipboard_pointers_store(struct Main *bmain, struct ListBase *seqbase);
 void SEQ_clipboard_pointers_restore(struct ListBase *seqbase, struct Main *bmain);
 void SEQ_clipboard_free(void);
+void SEQ_clipboard_active_seq_name_store(struct Scene *scene);
+bool SEQ_clipboard_pasted_seq_was_active(struct Sequence *pasted_seq);
 
 #ifdef __cplusplus
 }
diff --git a/source/blender/sequencer/intern/clipboard.c b/source/blender/sequencer/intern/clipboard.c
index e3f82dd4bb0..6c7cdbac7b5 100644
--- a/source/blender/sequencer/intern/clipboard.c
+++ b/source/blender/sequencer/intern/clipboard.c
@@ -24,6 +24,8 @@
  * \ingroup bke
  */
 
+#include <string.h>
+
 #include "MEM_guardedalloc.h"
 
 #include "DNA_scene_types.h"
@@ -31,6 +33,7 @@
 #include "DNA_sound_types.h"
 
 #include "BLI_listbase.h"
+#include "BLI_string.h"
 
 #include "BKE_main.h"
 #include "BKE_movieclip.h"
@@ -38,6 +41,7 @@
 #include "BKE_sound.h"
 
 #include "SEQ_clipboard.h"
+#include "SEQ_select.h"
 
 #include "sequencer.h"
 
@@ -55,6 +59,7 @@
 
 ListBase seqbase_clipboard;
 int seqbase_clipboard_frame;
+char seq_clipboard_active_seq_name[SEQ_NAME_MAXSTR];
 
 void seq_clipboard_pointers_free(struct ListBase *seqbase);
 
@@ -177,3 +182,27 @@ void SEQ_clipboard_pointers_restore(ListBase *seqbase, Main *bmain)
     SEQ_clipboard_pointers_restore(&seq->seqbase, bmain);
   }
 }
+
+void SEQ_clipboard_active_seq_name_store(Scene *scene)
+{
+  Sequence *active_seq = SEQ_select_active_get(scene);
+  if (active_seq != NULL) {
+    BLI_strncpy(
+        seq_clipboard_active_seq_name, active_seq->name, sizeof(seq_clipboard_active_seq_name));
+  }
+  else {
+    memset(seq_clipboard_active_seq_name, 0, sizeof(seq_clipboard_active_seq_name));
+  }
+}
+
+/**
+ * Check if strip was active when it was copied. User should restrict this check to pasted strips
+ * before ensuring original name, because strip name comparison is used to check.
+ *
+ * \param pasted_seq: Strip that is pasted(duplicated) from clipboard
+ * \return true if strip was active, false otherwise
+ */
+bool SEQ_clipboard_pasted_seq_was_active(Sequence *pasted_seq)
+{
+  return STREQ(pasted_seq->name, seq_clipboard_active_seq_name);
+}