api: Move switch_to_win_for_buf/restore_win_for_buf to api helpers

1 files changed, 28 insertions, 0 deletions

diff --git a/src/nvim/api/private/helpers.c b/src/nvim/api/private/helpers.c
index 39ca0756f3..d21033bd87 100644
--- a/src/nvim/api/private/helpers.c
+++ b/src/nvim/api/private/helpers.c
@@ -553,6 +553,34 @@ Dictionary api_metadata(void)
   return copy_object(DICTIONARY_OBJ(metadata)).data.dictionary;
 }
 
+// Find a window that contains "buf" and switch to it.
+// If there is no such window, use the current window and change "curbuf".
+// Caller must initialize save_curbuf to NULL.
+// restore_win_for_buf() MUST be called later!
+void switch_to_win_for_buf(buf_T *buf,
+                           win_T **save_curwinp,
+                           tabpage_T **save_curtabp,
+                           buf_T **save_curbufp)
+{
+  win_T *wp;
+  tabpage_T *tp;
+
+  if (!find_win_for_buf(buf, &wp, &tp)
+      || switch_win(save_curwinp, save_curtabp, wp, tp, true) == FAIL)
+    switch_buffer(save_curbufp, buf);
+}
+
+void restore_win_for_buf(win_T *save_curwin,
+                         tabpage_T *save_curtab,
+                         buf_T *save_curbuf)
+{
+  if (save_curbuf == NULL) {
+    restore_win(save_curwin, save_curtab, true);
+  } else {
+    restore_buffer(save_curbuf);
+  }
+}
+
 static void init_error_type_metadata(Dictionary *metadata)
 {
   Dictionary types = ARRAY_DICT_INIT;