patch 8.1.0307: there is no good way to get the window layout
Problem: There is no good way to get the window layout.
Solution: Add the winlayout() function. (Yegappan Lakshmanan)
diff --git a/src/window.c b/src/window.c
index e1781d3..5671cf9 100644
--- a/src/window.c
+++ b/src/window.c
@@ -7236,4 +7236,53 @@
list_append_number(list, wp->w_id);
}
+/*
+ * Get the layout of the given tab page for winlayout().
+ */
+ void
+get_framelayout(frame_T *fr, list_T *l, int outer)
+{
+ frame_T *child;
+ list_T *fr_list;
+ list_T *win_list;
+
+ if (fr == NULL)
+ return;
+
+ if (outer)
+ // outermost call from f_winlayout()
+ fr_list = l;
+ else
+ {
+ fr_list = list_alloc();
+ if (fr_list == NULL)
+ return;
+ list_append_list(l, fr_list);
+ }
+
+ if (fr->fr_layout == FR_LEAF)
+ {
+ if (fr->fr_win != NULL)
+ {
+ list_append_string(fr_list, (char_u *)"leaf", -1);
+ list_append_number(fr_list, fr->fr_win->w_id);
+ }
+ }
+ else
+ {
+ list_append_string(fr_list,
+ fr->fr_layout == FR_ROW ? (char_u *)"row" : (char_u *)"col", -1);
+
+ win_list = list_alloc();
+ if (win_list == NULL)
+ return;
+ list_append_list(fr_list, win_list);
+ child = fr->fr_child;
+ while (child != NULL)
+ {
+ get_framelayout(child, win_list, FALSE);
+ child = child->fr_next;
+ }
+ }
+}
#endif