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| author | Po Lu <luangruo@yahoo.com> | 2023-10-17 08:33:25 +0800 |
|---|---|---|
| committer | Po Lu <luangruo@yahoo.com> | 2023-10-17 08:33:25 +0800 |
| commit | d9e1605122b4ba70a55f7b168505b7d7f8d2bdd6 (patch) | |
| tree | b5aa8c1b37453c00f631d49c93d77a2f79060a64 | |
| parent | 194e219825c378a25b7a2dbda0c77215ac5ab302 (diff) | |
| download | emacs-d9e1605122b4ba70a55f7b168505b7d7f8d2bdd6.tar.gz | |
Correctly register focus events concomitant with alpha changes
* src/xterm.c (x_frame_highlight, x_frame_unhighlight): Skip
changing the frame alpha when the frame is not eligible for
focus state-specific alpha values; otherwise, the alpha might be
reset by the time a alpha change wrought by a focus change
arrives, impeding handle_one_xevent from subsequently restoring
the initial value. (bug#66398)
| -rw-r--r-- | src/xterm.c | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/xterm.c b/src/xterm.c index 709705fc19e..6f335ea11da 100644 --- a/src/xterm.c +++ b/src/xterm.c @@ -11487,7 +11487,9 @@ x_frame_highlight (struct frame *f) x_stop_ignoring_errors (dpyinfo); unblock_input (); gui_update_cursor (f, true); - x_set_frame_alpha (f); + + if (!FRAME_X_OUTPUT (f)->alpha_identical_p) + x_set_frame_alpha (f); } static void @@ -11511,7 +11513,15 @@ x_frame_unhighlight (struct frame *f) unblock_input (); gui_update_cursor (f, true); - x_set_frame_alpha (f); + + /* Eschew modifying the frame alpha when the alpha values for + focused and background frames are identical; otherwise, this will + upset the order in which changes to the alpha property + immediately subsequent to a focus change are propagated into a + frame's alpha property. (bug#66398) */ + + if (!FRAME_X_OUTPUT (f)->alpha_identical_p) + x_set_frame_alpha (f); } /* The focus has changed. Update the frames as necessary to reflect |