TextFrame(fix[display]): Handle terminal resize events

why: Display did not update when terminal was resized
what:
- Handle curses.KEY_RESIZE event in input loop
- Call curses.resize_term() to update internal dimensions
- Add test for resize handling

Author: tony

src/libtmux/textframe/core.py

@@ -311,3 +311,7 @@ def _curses_display(self, stdscr: curses.window) -> None:
                 scroll_y = 0
             elif key == curses.KEY_END:
                 scroll_y = max_scroll_y
+
+            # Terminal resize
+            elif key == curses.KEY_RESIZE:
+                curses.resize_term(*stdscr.getmaxyx())

tests/textframe/test_display.py

@@ -137,3 +137,20 @@ def test_status_line_displayed(self, mock_curses: None) -> None:
             if len(call[0]) >= 3 and "q:quit" in str(call[0][2])
         ]
         assert len(status_calls) > 0, "Status line should be displayed"
+
+    def test_terminal_resize_handling(self, mock_curses: None) -> None:
+        """Verify terminal resize events are handled via KEY_RESIZE."""
+        import curses as curses_module
+
+        frame = TextFrame(content_width=10, content_height=2)
+        frame.set_content(["hello", "world"])
+
+        mock_stdscr = MagicMock()
+        # Start with 24x80, resize to 40x120, then quit
+        mock_stdscr.getmaxyx.side_effect = [(24, 80), (40, 120), (40, 120)]
+        mock_stdscr.getch.side_effect = [curses_module.KEY_RESIZE, ord("q")]
+
+        with patch("curses.resize_term") as mock_resize:
+            frame._curses_display(mock_stdscr)
+            # Verify resize_term was called with new dimensions
+            mock_resize.assert_called_once_with(40, 120)