Package: emacs;
Reported by: 左 智杰 <hardirq <at> outlook.com>
Date: Sun, 16 Jul 2023 06:40:01 UTC
Severity: normal
Found in version 30.0.50
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bug-gnu-emacs <at> gnu.org
:bug#64658
; Package emacs
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(Sun, 16 Jul 2023 06:40:01 GMT) Full text and rfc822 format available.左 智杰 <hardirq <at> outlook.com>
:bug-gnu-emacs <at> gnu.org
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(Sun, 16 Jul 2023 06:40:02 GMT) Full text and rfc822 format available.Message #5 received at submit <at> debbugs.gnu.org (full text, mbox):
From: 左 智杰 <hardirq <at> outlook.com> To: "bug-gnu-emacs <at> gnu.org" <bug-gnu-emacs <at> gnu.org> Subject: 30.0.50; NotifyGrab and NotifyUngrab should be filtered with XInput2 Date: Sat, 15 Jul 2023 16:49:04 +0000
In i3wm + xfce4 setup, when multiple frames opened, switch between frames using only keyboard, and leave the mouse as: +-----------------+ +-----------------+ | | | | | | | | | | | | | | | | | | | | | | | | | FRAME 1 | | FRAME 2 | | *FOCUSED* | | *UNFOCUSED* | | | | ^ | | | | | | | | | MOUSE | | | | HERE | | | | | +-----------------+ +-----------------+ This will make the ~emacsclient -e '(selected-frame)'~ returns wrong frame, due to XInput2 sends a ~NotifyGrab~ with the unfocused frame, making Emacs selects it. We've make a small but ugly changes to fix this issue: #+begin_src diff --git a/src/xterm.c b/src/xterm.c index 9ecead03b0..d4836afeeb 100644 --- a/src/xterm.c +++ b/src/xterm.c @@ -13193,6 +13193,11 @@ xi_focus_handle_for_device (struct x_display_info *dpyinfo, if (!device) return; + /* Same as x_detect_focus_change, issue persists in XInput2. */ + if (event->evtype == XI_FocusIn || event->evtype == XI_FocusOut) + if (event->mode == XINotifyGrab || event->mode == XINotifyUngrab) + return; + switch (event->evtype) { case XI_FocusIn: #+end_src Wonder if we're correct? Yours sincerely, Zigit Zo --- In GNU Emacs 30.0.50 (build 2, x86_64-pc-linux-gnu, GTK+ Version 3.24.38, cairo version 1.17.8) of 2023-07-16 built on space Repository revision: 2df086d121e8ebee872236d0436205144047c5c9 Repository branch: master Windowing system distributor 'The X.Org Foundation', version 11.0.12101008 System Description: Arch Linux Configured using: 'configure --prefix=/home/byte/Workspace/emacs/opt' Configured features: ACL CAIRO DBUS FREETYPE GIF GLIB GMP GNUTLS GPM GSETTINGS HARFBUZZ JPEG JSON LCMS2 LIBSYSTEMD LIBXML2 MODULES NOTIFY INOTIFY PDUMPER PNG RSVG SECCOMP SOUND SQLITE3 THREADS TIFF TOOLKIT_SCROLL_BARS TREE_SITTER WEBP X11 XDBE XIM XINPUT2 XPM GTK3 ZLIB Important settings: value of $LANG: zh_CN.UTF-8 value of $XMODIFIERS: @im=fcitx locale-coding-system: utf-8-unix Major mode: C/*l Minor modes in effect: server-mode: t bug-reference-prog-mode: t text-scale-mode: t tooltip-mode: t global-eldoc-mode: t show-paren-mode: t electric-indent-mode: t mouse-wheel-mode: t tool-bar-mode: t menu-bar-mode: t file-name-shadow-mode: t global-font-lock-mode: t font-lock-mode: t blink-cursor-mode: t line-number-mode: t indent-tabs-mode: t transient-mark-mode: t auto-composition-mode: t auto-encryption-mode: t auto-compression-mode: t abbrev-mode: t Load-path shadows: None found. Features: (shadow sort mail-extr emacsbug message mailcap yank-media puny dired dired-loaddefs rfc822 mml mml-sec password-cache epa derived epg rfc6068 epg-config gnus-util text-property-search time-date subr-x mm-decode mm-bodies mm-encode mail-parse rfc2231 mailabbrev gmm-utils mailheader sendmail rfc2047 rfc2045 ietf-drums mm-util mail-prsvr mail-utils pp server vc-git diff-mode easy-mmode vc vc-dispatcher bug-reference byte-opt gv bytecomp byte-compile cc-mode cc-fonts cc-guess cc-menus cc-cmds cc-styles cc-align cc-engine cc-vars cc-defs cl-loaddefs cl-lib format-spec face-remap china-util rmc iso-transl tooltip cconv eldoc paren electric uniquify ediff-hook vc-hooks lisp-float-type elisp-mode mwheel term/x-win x-win term/common-win x-dnd tool-bar dnd fontset image regexp-opt fringe tabulated-list replace newcomment text-mode lisp-mode prog-mode register page tab-bar menu-bar rfn-eshadow isearch easymenu timer select scroll-bar mouse jit-lock font-lock syntax font-core term/tty-colors frame minibuffer nadvice seq simple cl-generic indonesian philippine cham georgian utf-8-lang misc-lang vietnamese tibetan thai tai-viet lao korean japanese eucjp-ms cp51932 hebrew greek romanian slovak czech european ethiopic indian cyrillic chinese composite emoji-zwj charscript charprop case-table epa-hook jka-cmpr-hook help abbrev obarray oclosure cl-preloaded button loaddefs theme-loaddefs faces cus-face macroexp files window text-properties overlay sha1 md5 base64 format env code-pages mule custom widget keymap hashtable-print-readable backquote threads dbusbind inotify lcms2 dynamic-setting system-font-setting font-render-setting cairo gtk x-toolkit xinput2 x multi-tty move-toolbar make-network-process emacs) Memory information: ((conses 16 88211 12696) (symbols 48 8441 0) (strings 32 25666 1087) (string-bytes 1 914293) (vectors 16 16380) (vector-slots 8 280038 15484) (floats 8 37 44) (intervals 56 4640 108) (buffers 984 13))
bug-gnu-emacs <at> gnu.org
:bug#64658
; Package emacs
.
(Sun, 16 Jul 2023 09:10:01 GMT) Full text and rfc822 format available.Message #8 received at 64658 <at> debbugs.gnu.org (full text, mbox):
From: Po Lu <luangruo <at> yahoo.com> To: 左 智杰 <hardirq <at> outlook.com> Cc: 64658 <at> debbugs.gnu.org Subject: Re: bug#64658: 30.0.50; NotifyGrab and NotifyUngrab should be filtered with XInput2 Date: Sun, 16 Jul 2023 17:09:13 +0800
左 智杰 <hardirq <at> outlook.com> writes: > In i3wm + xfce4 setup, when multiple frames opened, switch between frames > using only keyboard, and leave the mouse as: > > +-----------------+ +-----------------+ > | | | | > | | | | > | | | | > | | | | > | | | | > | | | | > | FRAME 1 | | FRAME 2 | > | *FOCUSED* | | *UNFOCUSED* | > | | | ^ | > | | | | | > | | | MOUSE | > | | | HERE | > | | | | > +-----------------+ +-----------------+ > > This will make the ~emacsclient -e '(selected-frame)'~ returns wrong frame, due to > XInput2 sends a ~NotifyGrab~ with the unfocused frame, making Emacs selects it. > > We've make a small but ugly changes to fix this issue: > > #+begin_src > diff --git a/src/xterm.c b/src/xterm.c > index 9ecead03b0..d4836afeeb 100644 > --- a/src/xterm.c > +++ b/src/xterm.c > @@ -13193,6 +13193,11 @@ xi_focus_handle_for_device (struct x_display_info *dpyinfo, > if (!device) > return; > > + /* Same as x_detect_focus_change, issue persists in XInput2. */ > + if (event->evtype == XI_FocusIn || event->evtype == XI_FocusOut) > + if (event->mode == XINotifyGrab || event->mode == XINotifyUngrab) > + return; > + > switch (event->evtype) > { > case XI_FocusIn: > #+end_src > > Wonder if we're correct? I don't want this hack in the input extension code, because it is much more sensitive to inconsistencies in the keyboard focus state. What is the value of event->send_event for these unwanted focus events?
bug-gnu-emacs <at> gnu.org
:bug#64658
; Package emacs
.
(Sun, 16 Jul 2023 14:11:05 GMT) Full text and rfc822 format available.Message #11 received at 64658 <at> debbugs.gnu.org (full text, mbox):
From: Zigit Zo <hardirq <at> outlook.com> To: Po Lu <luangruo <at> yahoo.com> Cc: 64658 <at> debbugs.gnu.org Subject: Re: bug#64658: 30.0.50; NotifyGrab and NotifyUngrab should be filtered with XInput2 Date: Sun, 16 Jul 2023 17:49:39 +0800
They're both 0, so the ~mode~ member is chosen :( For convenient, posted all members when FocusIn event triggered, the last one is the cause of ~selected-frame~ changes. #+begin_src Thread 1 "emacs" hit Breakpoint 5, xi_handle_focus_change (dpyinfo=0x558ec6140c00) at ../../src/xterm.c:13068 13068 { #2 0x0000558ec403e631 in event_handler_gdk (gxev=0x7ffd3ebb6080, ev=<optimized out>, data=<optimized out>) at ../../src/xterm.c:17671 $282 = (struct frame *) 0x558ec5dd5da0 "emacs - FRAME 1 TITLE" (gdb) p *(XIFocusInEvent*) ((XEvent*) gxev)->xcookie.data $284 = { type = 35, serial = 265494, send_event = 0, display = 0x558ec5ecb250, extension = 131, evtype = 9, time = 170569789, deviceid = 3, sourceid = 3, detail = 3, root = 483, event = 79691928, child = 0, root_x = 2769, root_y = 993, event_x = 2751, event_y = 879, mode = 3, focus = 0, same_screen = 1, buttons = { mask_len = 4, mask = 0x558ec9481958 "" }, mods = { base = 64, latched = 0, locked = 0, effective = 64 }, group = { base = 0, latched = 0, locked = 0, effective = 0 } } Thread 1 "emacs" hit Breakpoint 5, xi_handle_focus_change (dpyinfo=0x558ec6140c00) at ../../src/xterm.c:13068 13068 { #2 0x0000558ec403e631 in event_handler_gdk (gxev=0x7ffd3ebb6080, ev=<optimized out>, data=<optimized out>) at ../../src/xterm.c:17671 $289 = (struct frame *) 0x558ec5dd5da0 "emacs - FRAME 1 TITLE" (gdb) p *(XIFocusInEvent*) ((XEvent*) gxev)->xcookie.data $291 = { type = 35, serial = 270527, send_event = 0, display = 0x558ec5ecb250, extension = 131, evtype = 9, time = 170569915, deviceid = 3, sourceid = 3, detail = 0, root = 483, event = 79691928, child = 0, root_x = 2769, root_y = 993, event_x = 2751, event_y = 879, mode = 2, focus = 0, same_screen = 1, buttons = { mask_len = 4, mask = 0x558ecc272658 "" }, mods = { base = 64, latched = 0, locked = 0, effective = 64 }, group = { base = 0, latched = 0, locked = 0, effective = 0 } } Thread 1 "emacs" hit Breakpoint 5, xi_handle_focus_change (dpyinfo=0x558ec6140c00) at ../../src/xterm.c:13068 13068 { #2 0x0000558ec403e631 in event_handler_gdk (gxev=0x7ffd3ebb6080, ev=<optimized out>, data=<optimized out>) at ../../src/xterm.c:17671 $295 = (struct frame *) 0x558ecde5baf0 "emacs - FRAME 2 TITLE UNFOCUSED" (gdb) p *(XIFocusInEvent*) ((XEvent*) gxev)->xcookie.data $297 = { type = 35, serial = 270527, send_event = 0, display = 0x558ec5ecb250, extension = 131, evtype = 9, time = 170570127, deviceid = 3, sourceid = 3, detail = 5, root = 483, event = 79692372, child = 0, root_x = 2769, root_y = 993, event_x = 459, event_y = 879, mode = 1, focus = 0, same_screen = 1, buttons = { mask_len = 4, mask = 0x558ecb779b88 "" }, mods = { base = 64, latched = 0, locked = 0, effective = 64 }, group = { base = 0, latched = 0, locked = 0, effective = 0 } } #+end_sr Hope this will be useful. 在 2023/7/16 17:09, Po Lu 写道: > 左 智杰 <hardirq <at> outlook.com> writes: > >> In i3wm + xfce4 setup, when multiple frames opened, switch between frames >> using only keyboard, and leave the mouse as: >> >> +-----------------+ +-----------------+ >> | | | | >> | | | | >> | | | | >> | | | | >> | | | | >> | | | | >> | FRAME 1 | | FRAME 2 | >> | *FOCUSED* | | *UNFOCUSED* | >> | | | ^ | >> | | | | | >> | | | MOUSE | >> | | | HERE | >> | | | | >> +-----------------+ +-----------------+ >> >> This will make the ~emacsclient -e '(selected-frame)'~ returns wrong frame, due to >> XInput2 sends a ~NotifyGrab~ with the unfocused frame, making Emacs selects it. >> >> We've make a small but ugly changes to fix this issue: >> >> #+begin_src >> diff --git a/src/xterm.c b/src/xterm.c >> index 9ecead03b0..d4836afeeb 100644 >> --- a/src/xterm.c >> +++ b/src/xterm.c >> @@ -13193,6 +13193,11 @@ xi_focus_handle_for_device (struct x_display_info *dpyinfo, >> if (!device) >> return; >> >> + /* Same as x_detect_focus_change, issue persists in XInput2. */ >> + if (event->evtype == XI_FocusIn || event->evtype == XI_FocusOut) >> + if (event->mode == XINotifyGrab || event->mode == XINotifyUngrab) >> + return; >> + >> switch (event->evtype) >> { >> case XI_FocusIn: >> #+end_src >> >> Wonder if we're correct? > I don't want this hack in the input extension code, because it is much > more sensitive to inconsistencies in the keyboard focus state. > > What is the value of event->send_event for these unwanted focus events?
bug-gnu-emacs <at> gnu.org
:bug#64658
; Package emacs
.
(Sun, 16 Jul 2023 23:28:01 GMT) Full text and rfc822 format available.Message #14 received at 64658 <at> debbugs.gnu.org (full text, mbox):
From: Po Lu <luangruo <at> yahoo.com> To: Zigit Zo <hardirq <at> outlook.com> Cc: 64658 <at> debbugs.gnu.org Subject: Re: bug#64658: 30.0.50; NotifyGrab and NotifyUngrab should be filtered with XInput2 Date: Mon, 17 Jul 2023 07:26:39 +0800
Zigit Zo <hardirq <at> outlook.com> writes: > They're both 0, so the ~mode~ member is chosen :( For convenient, posted > all members when FocusIn event triggered, the last one is the cause of > ~selected-frame~ changes. So I gather that a corresponding XI_FocusOut event is sent after the window manager shortcut completes, and `selected-frame' returns an unexpected value only for the duration of the grab? If so, there's no bug in Emacs: the other frame really is selected for the duration of the shortcut.
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