Merge branch 'search-crash-when-selection-is-cancelled'

Closes #644

CHANGELOG.md

@@ -39,6 +39,9 @@
 * Rendering into the right margin area with `tweak.overflowing-glyphs`
   enabled.
 * PGO builds with clang (https://codeberg.org/dnkl/foot/issues/642).
+* Crash in scrollback search mode when selection has been canceled due
+  to terminal content updates
+  (https://codeberg.org/dnkl/foot/issues/644).
 
 
 ### Security

search.c

@@ -155,6 +155,14 @@ search_cancel(struct terminal *term)
     selection_cancel(term);
 }
 
+void
+search_selection_cancelled(struct terminal *term)
+{
+    term->search.match = (struct coord){-1, -1};
+    term->search.match_len = 0;
+    render_refresh_search(term);
+}
+
 static void
 search_update_selection(struct terminal *term,
                         int start_row, int start_col,

search.h

@@ -11,3 +11,5 @@ void search_input(
     const xkb_keysym_t *raw_syms, size_t raw_count,
     uint32_t serial);
 void search_add_chars(struct terminal *term, const char *text, size_t len);
+
+void search_selection_cancelled(struct terminal *term);

selection.c

@@ -21,6 +21,7 @@
 #include "grid.h"
 #include "misc.h"
 #include "render.h"
+#include "search.h"
 #include "uri.h"
 #include "util.h"
 #include "vt.h"
@@ -1058,6 +1059,8 @@ selection_cancel(struct terminal *term)
     term->selection.pivot.end = (struct coord){-1, -1};
     term->selection.direction = SELECTION_UNDIR;
     term->selection.ongoing = false;
+
+    search_selection_cancelled(term);
 }
 
 bool