master d852306: Fix widgets in Outline mode on TTY frames

[Eli Zaretskii]

branch: master
commit d8523060e5dcf285a5468377720bed6a34599df6
Author: Eli Zaretskii <eliz@gnu.org>
Commit: Eli Zaretskii <eliz@gnu.org>

    Fix widgets in Outline mode on TTY frames
    
    * lisp/outline.el (outline--valid-emoji-p): Don't try to probe
    support for display of Emoji characters on TTY frames.  (Bug#51578)
---
 lisp/outline.el | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/lisp/outline.el b/lisp/outline.el
index 2a6f475..5b20a42 100644
--- a/lisp/outline.el
+++ b/lisp/outline.el
@@ -961,7 +961,8 @@ If non-nil, EVENT should be a mouse event."
                           " " (buffer-substring (point) (1+ (point))))))
 
 (defun outline--valid-emoji-p (string)
-  (when-let ((font (car (internal-char-font nil ?😀))))
+  (when-let ((font (and (display-multi-font-p)
+                        (car (internal-char-font nil ?😀)))))
     (font-has-char-p font (aref string 0))))
 
 (defun outline--valid-char-p (string)