File 0001-fix-crash-when-reflowing-alt-screen.patch of Package failed_foot

From: Soc Virnyl Estela <socvirnyl.estela@gmail.com>
Date: Mon Jun 26 05:47:26 PM PST 2023
Subject: [PATCH] render: resize: fix crash when reflowing the alt screen

When doing an interactive resize, and `resize-delay-ms` > 0 (the
default), we would crash if the original screen size (i.e. the size
before the interactive resize started) was larger than the last window
size.

For example, if we interactively go from 85 rows to 75, and then
non-interactively went from 75 to 80, we’d crash.

The resizes had to be made in a single go. One way to trigger this was
to start an interactive resize on a floating window, and then *while
resizing* toggle the window’s floating mode.

Based on commit https://codeberg.org/dnkl/foot/commit/3a59cbbaa3906da6f9ab73ad949bc598318be7e4
---

diff --git a/render.c b/render.c
index 340e0378..1858467d 100644
--- a/render.c
+++ b/render.c
@@ -4030,7 +4030,9 @@ maybe_resize(struct terminal *term, int width, int height, bool force)
             term->interactive_resizing.old_hide_cursor = term->hide_cursor;
             term->interactive_resizing.grid = xmalloc(sizeof(*term->interactive_resizing.grid));
             *term->interactive_resizing.grid = term->normal;
-            term->interactive_resizing.selection_coords = term->selection.coords;
+
+            if (term->grid == &term->normal)
+                term->interactive_resizing.selection_coords = term->selection.coords;
         } else {
             /* We’ll replace the current temporary grid, with a new
              * one (again based on the original grid) */
@@ -4118,6 +4120,8 @@ maybe_resize(struct terminal *term, int width, int height, bool force)
     } else {
         /* Full text reflow */
 
+        int old_normal_rows = old_rows;
+
         if (term->interactive_resizing.grid != NULL) {
             /* Throw away the current, truncated, “normal” grid, and
              * use the original grid instead (from before the resize
@@ -4129,7 +4133,7 @@ maybe_resize(struct terminal *term, int width, int height, bool force)
             term->hide_cursor = term->interactive_resizing.old_hide_cursor;
             term->selection.coords = term->interactive_resizing.selection_coords;
 
-            old_rows = term->interactive_resizing.old_screen_rows;
+            old_normal_rows = term->interactive_resizing.old_screen_rows;
 
             term->interactive_resizing.grid = NULL;
             term->interactive_resizing.old_screen_rows = 0;
@@ -4145,7 +4149,7 @@ maybe_resize(struct terminal *term, int width, int height, bool force)
         };
 
         grid_resize_and_reflow(
-            &term->normal, new_normal_grid_rows, new_cols, old_rows, new_rows,
+            &term->normal, new_normal_grid_rows, new_cols, old_normal_rows, new_rows,
             term->selection.coords.end.row >= 0 ? ALEN(tracking_points) : 0,
             tracking_points);
     }