Found by relint. See discussion at
https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00265.html
* lisp/org/org-table.el (org-table-finish-edit-field):
* lisp/arc-mode.el (archive-rar-summarize):
Avoid wrapped subsumption in repeated sequences.
* lisp/erc/erc-dcc.el (erc-dcc-ctcp-query-send-regexp): Replace
inefficient repeated empty-matching expression with a plain greedy
form.
(erc-dcc-handle-ctcp-send): Adjust group numbers.
* lisp/net/puny.el (puny-encode-domain): Fix fast-path shortcut
pattern so that it actually works as intended.
* lisp/progmodes/gdb-mi.el (gdb-control-commands-regexp):
* lisp/vc/diff-mode.el (diff-imenu-generic-expression):
Remove superfluous backslashes.
* lisp/progmodes/scheme.el (scheme-imenu-generic-expression):
Correct confused definition-matching pattern which would match more
than intended.
* lisp/textmodes/sgml-mode.el (sgml-tag-name-re): Avoid inefficient
matching by using the fact that the first character cannot match the
last char of sgml-name-re.
Eli Zaretskii [Thu, 16 Apr 2020 06:14:07 +0000 (09:14 +0300)]
File-handling cleanup in w32image.c
* src/w32image.c (w32_load_image): Encode the image file name and
convert it via 'map_w32_filename'. No need to do anything special
when 'w32_unicode_filenames' is zero, since file names are in
UTF-8 internally, and this code will never run on Windows 9X.
* src/w32.h (map_w32_filename): Add prototype; removed prototypes
from all *.c files.
Eli Zaretskii [Wed, 15 Apr 2020 20:15:03 +0000 (23:15 +0300)]
Fix retrieval of frame delay when using GDI+
* src/w32image.c (enum PropertyItem_type): New enumeration.
(decode_delay): New function.
(w32_frame_delay): Call 'decode_delay' to retrieve the frame delay
from image data.
a5f7c26907 (origin/emacs-27) * admin/authors.el: Add an author alias. d87a4d1f4e Limit RLIMIT_NOFILE to FD_SETSIZE on macOS e5ca8e5e73 Fix Elisp manual entry on 'set-window-configuration' 485f24223f ; Update ChangeLog.3 8f200254fb ; Update etc/AUTHORS c7adc851ad * admin/authors.el: Add missing author aliases. 4acdd7fe58 Fix edge case errors in filename-matching regexps 5f36e21fe5 Clarify the doc string of 'yank' 13301d4266 New function erc-track-switch-buffer-other-window 38f7538d8f New function erc-switch-to-buffer-other-window
Eli Zaretskii [Wed, 15 Apr 2020 11:28:21 +0000 (14:28 +0300)]
Avoid infloop in redisplay when wrap-prefix is too wide
* src/xdisp.c (move_it_to): Avoid infloop due to wrap-prefix that
is wide enough to leave no space to display even the first
character of the continuation line. (Bug#40632)
* src/nsterm.m ([EmacsApp applicationDidFinishLaunching:]): Call
CoreFoundation functions that increase RLIMIT_NOFILE behind our back
during startup, and then set RLIMIT_NOFILE back to FD_SETSIZE to avoid
crashes in setup_process_coding_system (Bug#39164).
Stefan Monnier [Wed, 15 Apr 2020 04:23:09 +0000 (00:23 -0400)]
* lisp/htmlfontify.el: Use `font-lock-ensure` unconditionally
Remove redundant `:group`s.
(hfy-force-fontification): Make it an obsolete alias for `font-lock-ensure`.
Update all callers.
(hfy-init-kludge-hooks, hfy-init-kludge-hook): Remove vars, not used any more.
(hfy-kludge-cperl-mode): Declare it obsolete.
Eli Zaretskii [Tue, 14 Apr 2020 19:22:07 +0000 (22:22 +0300)]
Avoid compiler warning in image.c
* src/image.c (image_can_use_native_api): Avoid compiler warnings
by making this function conditioned on HAVE_NATIVE_IMAGE_API.
(initialize_image_type): Call image_can_use_native_api only if
HAVE_NATIVE_IMAGE_API is non-zero. Reported by Basil
L. Contovounesios <contovob@tcd.ie>.
Eli Zaretskii [Tue, 14 Apr 2020 15:10:41 +0000 (18:10 +0300)]
Make use of MS-Windows native image API be selectable at run time
* configure.ac: Minor cleanup in how w32image.o is added to the
build when native image APIs are requested.
* src/w32gui.h (w32_load_image, w32_can_use_native_image_api)
(w32_gdiplus_shutdown): Move prototypes from w32term.h here, since
w32.c doesn't include w32term.h.
* src/image.c (struct image_type): No need to pass TYPE to the
'valid_p' method. All callers changed.
(initialize_image_type) [HAVE_NATIVE_IMAGE_API]: Call
'image_can_use_native_api' before trying image-specific methods.
(image_can_use_native_api): New function.
(image_types): Remove the native_image_type parts.
(syms_of_image): New symbol 'native-image'.
(parse_image_spec): Accept native-image "type" for any image type.
* src/w32term.c (syms_of_w32term): New variable
'w32-use-native-image-API'.
* src/w32image.c: (w32_can_use_native_image_api): New function.
(gdiplus_init): Rename from w32_gdiplus_startup. Simplify code.
Move the call to GdiplusStartup to a separate function. Use
ordinal number for SHCreateMemStream if cannot load it by name.
(w32_load_image): Ignore Win32Error status from
w32_select_active_frame.
Move DEFSYMs from here...
* src/image.c (syms_of_image) [HAVE_NATIVE_IMAGE_API]: ...to here.
* etc/NEWS: Update the entry about native image API use.
These changes fix actual or latent bugs in regexps that match
file names, such as PATTERN arguments to 'directory-files'. See
https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00265.html
Eli Zaretskii [Tue, 14 Apr 2020 05:38:00 +0000 (08:38 +0300)]
Clarify the doc string of 'yank'
* lisp/simple.el (yank): Mention 'current-kill' in the doc string,
so that people could find all the gory details of what is "the most
recent kill" for this purpose. (Bug#40375)
* lisp/erc/erc-track.el (erc-track-switch-buffer): Factor out the
implementation from here ...
(erc-track--switch-buffer): ... to here.
(erc-track-switch-buffer-other-window): New function, like
`erc-track-switch-buffer', but uses `switch-to-buffer-other-window'
instead, to open the buffer in another window.
* lisp/erc/erc.el (erc-switch-to-buffer): Factor out the buffer choice
implementation from here ...
(erc--switch-to-buffer): ... to here.
(erc-switch-to-buffer-other-window): New function, like
`erc-switch-to-buffer', but uses `switch-to-buffer-other-window'
instead, to open the buffer in another window.
1dfc497fac Minor wording change in Introduction to Programming in Ema... ff09b4eeac Fix 'flymake-show-diagnostics-buffer' when line numbers ar... 63e8d0ea87 Fix last changes describing mail commands 01212a762f Do setup Flymake in file-less Elisp buffers 36873ef2b2 Fix error message for ‘cl-struct-unknown-slot’ (bug#39995) 3f9310b0fe Fix and improve documentation of mail-related features 1482a75efa Fix build failure with Fx_gtk_debug cf57663f2a Mention jit-lock deferred as an alternative to fast-but-im...
Albert [Mon, 13 Apr 2020 10:02:17 +0000 (18:02 +0800)]
Support toggling native Input Methods on MS-Windows
* src/w32term.h (WM_EMACS_IME_STATUS): New message code.
* src/w32fns.c (ImmGetOpenStatus_Proc, ImmSetOpenStatus_Proc): New
typedefs.
(w32_msg_pump): Handle the WM_EMACS_IME_STATUS message.
(Fw32_get_ime_open_status, Fw32_set_ime_open_status): New functions
(syms_of_w32fns): Defsubr them.
(globals_of_w32fns): Load ImmGetOpenStatus and ImmSetOpenStatus
from IMM2.DLL.
Štěpán Němec [Sat, 7 Mar 2020 17:26:44 +0000 (18:26 +0100)]
gnus-shorten-url: Improve and avoid args-out-of-range error
'gnus-shorten-url' (used by 'gnus-summary-browse-url') ignored
fragment identifiers and didn't check substring bounds, in some cases
leading to runtime errors, e.g.:
gnus-shorten-url: Improve and avoid args-out-of-range error
'gnus-shorten-url' (used by 'gnus-summary-browse-url') ignored
fragment identifiers and didn't check substring bounds, in some cases
leading to runtime errors, e.g.:
This commit makes it account for #fragments and fixes faulty string
computation. (bug#39980)
Do not merge to master, where the helper is put to subr-x.el.
* lisp/gnus/gnus-sum.el (gnus--string-truncate-left): New helper
function (copied from 'ediff-truncate-string-left').
(gnus-shorten-url): Use it and don't drop #fragments.
Eli Zaretskii [Mon, 13 Apr 2020 08:53:47 +0000 (11:53 +0300)]
Minor wording change in Introduction to Programming in Emacs Lisp
* doc/lispintro/emacs-lisp-intro.texi (Prevent confusion): Mention
that dynamic scoping is only the default in Emacs Lisp, not the
only scoping rule. (Bug#40594)
Eli Zaretskii [Mon, 13 Apr 2020 08:43:39 +0000 (11:43 +0300)]
Improve support of "Re:" in Rmail
* lisp/mail/rmail.el (rmail-simplified-subject)
(rmail-reply-regexp): Recognize U+FF1A FULLWIDTH COLON as a colon
after "Re:"-type prefixes.
(rmail-re-abbrevs): New defcustom with localized abbreviations of
"Re:".
(rmail-reply-regexp): Use 'rmail-re-abbrevs'. Recognize U+FF1A
in addition to the ASCII colon.
* etc/NEWS: Call out the new defcustom 'rmail-re-abbrevs'.
Juri Linkov [Sun, 12 Apr 2020 23:40:56 +0000 (02:40 +0300)]
Fix hi-lock test and add new test for case-fold (bug#40337)
* lisp/hi-lock.el (hi-lock--regexps-at-point): Handle font-lock faces.
(hi-lock-unface-buffer): Simplify default value handling.
(hi-lock-set-pattern): Add either lighter or regexp to
hi-lock-interactive-lighters.
(hi-lock-set-pattern): Put overlay prop hi-lock-overlay-regexp to
either lighter or regexp.
* test/lisp/hi-lock-tests.el (hi-lock-bug26666): Use "b" instead of "a".
(hi-lock-case-fold): New test.
Eli Zaretskii [Sun, 12 Apr 2020 08:31:29 +0000 (11:31 +0300)]
Fix and improve documentation of mail-related features
* lisp/simple.el (compose-mail): Clarify the effect of the
CONTINUE argument.
* lisp/mail/sendmail.el (mail-from-style): Update the RFC value in
the obsolescence warning text.
* doc/emacs/sending.texi (Sending Mail): Fix the description of
the behavior of 'C-x m' wrt prefix argument.
(Mail Headers): Remove the description of 'mail-from-style'.
* etc/NEWS: Mention that 'mail-from-style' is obsolete.
Martin Rudalics [Sun, 12 Apr 2020 08:00:28 +0000 (10:00 +0200)]
Fix build failure with Fx_gtk_debug
* src/xfns.c (Fx_gtk_debug, Sx_gtk_debug): Define only for GTK
versions >= 3.14.0 so gtk_window_set_interactive_debugging is
defined. Reported by Andreas Schwab <schwab@linux-m68k.org>.
Paul Eggert [Sun, 12 Apr 2020 01:35:35 +0000 (18:35 -0700)]
Remove UNSIGNED_CMP
I added this macro in 2011 to fix some signedness comparison bugs.
However, it’s a weird macro and the bugs can be fixed in a
more-straightforward way. This helps performance slightly (0.5%) on my
platform (Fedora 31 x86-64, GCC 9.3.1 with -O2).
* src/casefiddle.c (do_casify_natnum): Use simple comparison
instead of UNSIGNED_CMP.
* src/character.h (CHAR_VALID_P, SINGLE_BYTE_CHAR_P, CHAR_STRING):
* src/composite.h (COMPOSITION_ENCODE_RULE_VALID):
* src/lisp.h (ASCII_CHAR_P):
Now an inline function, and uses simple comparison instead of
UNSIGNED_CMP.
* src/dispextern.h (FACE_FROM_ID, FACE_FROM_ID_OR_NULL)
(IMAGE_FROM_ID, IMAGE_OPT_FROM_ID): Move these to ...
* src/frame.h (FACE_FROM_ID, FACE_FROM_ID_OR_NULL)
(IMAGE_FROM_ID, IMAGE_OPT_FROM_ID): ... here, and make them
inline functions that no longer use UNSIGNED_CMP.
* src/keyboard.c (read_char): UNSIGNED_CMP is not needed here
since XFIXNAT always returns a nonnegative value.
* src/lisp.h (UNSIGNED_CMP): Remove; no longer used.
Juri Linkov [Sat, 11 Apr 2020 23:45:02 +0000 (02:45 +0300)]
Implement case-insensitivity in hi-lock (bug#40337)
* lisp/hi-lock.el (hi-lock-interactive-lighters): New buffer-local variable.
(hi-lock-mode): Set hi-lock-interactive-lighters to nil.
(hi-lock-line-face-buffer): Use case-fold-search and search-upper-case.
(hi-lock-face-buffer): Add new arg LIGHTER. Use case-fold-search,
search-upper-case and search-spaces-regexp.
(hi-lock-face-phrase-buffer): Don't call hi-lock-process-phrase.
Use case-fold-search, search-upper-case and search-whitespace-regexp.
(hi-lock-face-symbol-at-point): Use case-fold-search and search-upper-case.
(hi-lock-unface-buffer): Use hi-lock-interactive-lighters to get
a human-readable string for completion and x-popup-menu.
(hi-lock-process-phrase): Remove function.
(hi-lock-set-pattern): Add new args LIGHTER, CASE-FOLD, SPACES-REGEXP.
Set font-lock pattern to a search function. Add mapping from
lighter or regexp to pattern to hi-lock-interactive-lighters.
Let-bind case-fold-search and search-spaces-regexp in search functions.
* lisp/isearch.el (isearch--highlight-regexp-or-lines): Replace ugly code
with let-binding of case-fold-search, search-upper-case, search-spaces-regexp.
(isearch-highlight-regexp, isearch-highlight-lines-matching-regexp):
Use lambda.
Alan Mackenzie [Sat, 11 Apr 2020 21:04:50 +0000 (21:04 +0000)]
Mention jit-lock deferred as an alternative to fast-but-imprecise-scrolling
* doc/emacs/display.texi (Scrolling): Add a paragraph on using jit-lock
deferred fontification as a way of obviating Emacs hanging after
auto-repeated scrolling.
Stefan Monnier [Fri, 10 Apr 2020 22:27:36 +0000 (18:27 -0400)]
* lisp/progmodes/cl-font-lock.el: New file
Taken from commit 1a54066611da213626ab69ea426ba3c63ece3438
of https://github.com/cl-font-lock/cl-font-lock,
but with names reverted to a `cl-font-lock-` prefix.
fd27685c1e (origin/emacs-27) ; * doc/lispref/keymaps.texi (Extended M... 6057d79a4e * doc/lispref/keymaps.texi (Extended Menu Items): Tweak :k... 17a1bb5a03 Fix redisplay when scrolling under redisplay-dont-pause 90321f595c Fix face extension in pulse.el 36c42d2a30 * doc/misc/tramp.texi (Bug Reports): Avoid line breaks in ... d5750af151 Avoid assertion violation in intervals.c 18d1bc0a09 Improve documentation of 'jit-lock-contextually' 08486f4cae Speed up 'resize-mode' child frames a little f451ef9308 ; * etc/NEWS: Mention 'executing-macro' in removed vars. c49d379f17 Fix some problems with moving and resizing child frames
Stefan Monnier [Fri, 10 Apr 2020 21:04:19 +0000 (17:04 -0400)]
* doc/lispref/keymaps.texi (Extended Menu Items): Tweak :key-sequence
Don't make it sound like `:key-sequence nil` is any different than the
absence of `:key-sequence`. And the performance advantage of
`:key-sequence` disappeared long ago.
Eli Zaretskii [Fri, 10 Apr 2020 15:30:21 +0000 (18:30 +0300)]
Fix redisplay when scrolling under redisplay-dont-pause
* src/dispnew.c (update_window): Reset the window's
'must_be_updated_p' flag if the window's update was completed
without interruption. This fixes redisplay glitches when
'redisplay-dont-pause' is nil, at least on MS-Windows, because
'expose_window' doesn't redraw the exposed rectangle when the
window's 'must_be_updated_p' flag is set.
Eli Zaretskii [Thu, 9 Apr 2020 16:44:55 +0000 (19:44 +0300)]
Fix face extension in pulse.el
* lisp/cedet/pulse.el (pulse-reset-face): Propagate the :extend
attribute of FACE to the face used for displaying the pulse.
Reported by Adam Porter <adam@alphapapa.net>.
To sidestep conversion altogether when EOL conversion applies, we must
either be encoding a string without NL, or decoding without CR.
* src/coding.c (string_ascii_p): Revert to a pure predicate.
(code_convert_string): Fix logic. Don't use uninitialised
ascii_p (removed). Use memchr to detect CR or LF in string when needed.
* test/src/coding-tests.el (coding-nocopy-ascii):
Update tests to include encodings with explicit EOL conversions.
Don't crash with invalid argument in check-coding-systems-region
* src/coding.c (Fcheck_coding_systems_region): Don't crash if
the third arg contains something that isn't a coding system.
* test/src/coding-tests.el (coding-check-coding-systems-region):
New test.
Callers of ENCODE_FILE and DECODE_FILE should not assume that these
functions always return a new string (bug#40407).
* src/w32fns.c (Fw32_shell_execute):
* src/w32proc.c (Fw32_application_type):
Sink taking the address of a Lisp string past GC points.
Copy values returned from ENCODE_FILE before mutating them.
Eli Zaretskii [Thu, 9 Apr 2020 09:20:24 +0000 (12:20 +0300)]
Fix decoding of ASCII strings with embedded CR characters
* src/coding.c (string_ascii_p): Return a negative value if an
all-ASCII string STR includes the CR character, otherwise a
positive value.
(code_convert_string): If the string is ASCII, but includes CR
characters, use the fast path only if EOL doesn't need to be
decoded. (Bug#40519)
* test/src/coding-tests.el (coding-nocopy-ascii): Add more tests
for bug#40519.
Eli Zaretskii [Thu, 9 Apr 2020 09:18:30 +0000 (12:18 +0300)]
Fix decoding ASCII strings with embedded CR characters
* src/coding.c (string_ascii_p): Return a negative value if an
all-ASCII string STR includes the CR character, otherwise a
positive value.
(code_convert_string): If the string is ASCII, but includes CR
characters, use the fast path only if EOL doesn't need to be
decoded. (Bug#40519)
* test/src/coding-tests.el (coding-nocopy-ascii): Add tests for
bug#40519.
Eli Zaretskii [Thu, 9 Apr 2020 08:21:18 +0000 (11:21 +0300)]
Avoid assertion violation in intervals.c
* src/intervals.c (delete_interval): Allow negative values of
LENGTH (i). This happens when delete_interval is called from
set_intervals_multibyte_1, because the caller zeroes out the
total_length field of the interval to be deleted. See
https://lists.gnu.org/archive/html/emacs-devel/2020-04/msg00131.html
for more details. See also a related old discussion at
https://lists.gnu.org/archive/html/emacs-devel/2012-07/msg00399.html.
Eli Zaretskii [Wed, 8 Apr 2020 15:33:52 +0000 (18:33 +0300)]
Improve documentation of 'jit-lock-contextually'
* lisp/jit-lock.el (jit-lock-contextually): Clarify the jit-lock
operation when 'jit-lock-contextually' is non-nil and non-t.
* doc/lispref/modes.texi (Syntactic Font Lock)
(Other Font Lock Variables): Document the relation between
'jit-lock-register', 'font-lock-keywords-only', and syntactic
refontification.
* src/gtkutil.c (xg_frame_set_char_size): Skip resizing if the
target dimensions are unchanged for child frames with
'resize-mode' resize policy as well.
Paul Eggert [Wed, 8 Apr 2020 03:52:28 +0000 (20:52 -0700)]
Revert my KEY_OPS_CFLAGS change to src/Makefile.in
Now that -Og inlining has been improved this is no longer helpful.
* src/Makefile.in (KEY_OPS_CFLAGS): Remove. All uses removed.
This improved CPU performance of ‘make compile-always’ by 5% on my
platform, which was gcc -Og, GCC 9.3.1 20200317 (Red Hat 9.3.1-1),
Fedora 31 x86-64 (AMD Phenom II X4 910e, circa 2010).
Paul Eggert [Tue, 7 Apr 2020 23:57:04 +0000 (16:57 -0700)]
Improve inlining when compiling with -Og
* src/conf_post.h (EXTERN_INLINE) [!EMACS_EXTERN_INLINE]:
Make it static inline, not merely static. This is a worthwhile
performance improvement on my two platforms A and B (see below).
On my platform A this change improves user+system CPU performance of
‘make compile-always’ by 52% on an -Og build, and by 1.4% on the
default -O2 build. On my platform B this improves the same benchmark
by 41% on an -Og build, and by -0.8% on the default -O2 build.
That "-0.8%" is a small negative for this change, and I recall that
it is why I didn't make this change earlier. However, Platform B uses
an older GCC so we needn't worry overmuch about this small negative.
With this change the performance advantage of -O2 over -Og has dropped
on platform A; formerly -O2 was 87% faster than -Og, and now it is
only 25% faster. On platform B the performance advantage of -O2 over
-Og has dropped from being 62% faster to being 14% faster.
Platform A is GCC 9.3.1 20200317 (Red Hat 9.3.1-1) on Fedora 31
x86-64 (AMD Phenom II X4 910e, circa 2010). Platform B is GCC (Ubuntu
7.5.0-3ubuntu1~18.04) 7.5.0 on Ubuntu 18.04.4 (Intel Xeon E3-1225 V2,
circa 2012).
This patch was inspired by a suggestion by Andrea Corallo in:
https://lists.gnu.org/r/emacs-devel/2020-04/msg00263.html
* doc/misc/emacs-gnutls.texi (Help For Developers): Describe :coding
keyword support.
* etc/NEWS: Announce change to open-network-stream and
open-gnutls-stream.
* lisp/net/gnutls.el (open-gnutls-stream): Add support for :coding, pass it
down to open-network-stream.
* lisp/net/network-stream.el (open-network-stream)
(network-stream-open-plain, network-stream-open-starttls): Add
support for :coding, pass it down to make-network-process.
(network-stream-open-shell): Add support-for :coding, use
set-process-coding-system to set it after process creation.
Robert Pluim [Fri, 3 Apr 2020 15:37:01 +0000 (17:37 +0200)]
Use length field when dns-query is using TCP
* net/dns.el (dns-write): Correct spelling in docstring.
(dns-read): Add optional tcp-p parameter, skip 2-byte length field
if non-nil.
(dns-query): Tell dns-read and dns-write if we're using TCP.
utf-7 and utf-7-imap are not ASCII-compatible (bug#40407)
* lisp/international/mule-conf.el (utf-7, utf-7-imap):
Add expedient to disable the :ascii-compatible-p property set
automatically by define-coding-system.
* test/lisp/international/mule-tests.el (mule-utf-7): New test.
Yuan Fu [Mon, 6 Apr 2020 07:56:15 +0000 (09:56 +0200)]
Unify and improve gdb-mi source buffer display logic
Unify the behavior of source buffer display for gdb-mi. Before this
change, stepping and other gdb command handlers use 'gud-display-line',
and 'gdb-goto-breakpoint' uses 'gdb-display-source-buffer'. Now whenever
gdb-mi code tries to open a source buffer, 'gdb-display-source-buffer'
is used. Also, simplify the logic in 'gdb-display-source-buffer' and
add a feature to limit the maximum number of source windows.
* doc/emacs/building.texi (GDB User Interface Layout): Explain source
file display in GDB.
* etc/NEWS (gdb-mi): Add news about source display.
* lisp/progmodes/gdb-mi.el (gdb-source-window): Remove variable,
change to 'gdb-source-window-list'.
(gdb-source-window-list): New variable.
(gdb-display-source-buffer-action,
gdb-max-source-window-count): New options.
(gdb-init-1, gdb-setup-windows, gdb-load-window-configuration,
gdb-restore-windows): Use 'gdb-source-window' rather than
'gdb-source-window-list'.
(gdb-save-window-configuration): Use 'gdb-source-window' rather than
'gdb-source-window-list'. And consider any buffer that is not a
command or function buffer as a source buffer.
(gdb-display-source-buffer): Use new logic.
(gdb-goto-breakpoint): Remove 'display-buffer' call
and don't set 'gdb-source-buffer' anymore.
* lisp/progmodes/gud.el (gud-display-line): If used by gdb-mi, use
'gdb-display-source-buffer' rather than 'display-buffer'. Don't set
'gdb-source-buffer' anymore.
Martin Rudalics [Mon, 6 Apr 2020 07:46:24 +0000 (09:46 +0200)]
Fix problems when dragging frames with the mouse
Re-implement 'mouse-drag-frame' via two new functions -
'mouse-drag-frame-resize' and 'mouse-drag-frame-move'. This is
needed because with some toolkits the notifications for frame
movement and resizing arrive asynchronously, breaking any
calculations using intermediate frame sizes and positions.
* lisp/mouse.el (mouse-drag-mode-line, mouse-drag-left-edge)
(mouse-drag-top-left-corner, mouse-drag-top-edge)
(mouse-drag-top-right-corner, mouse-drag-right-edge)
(mouse-drag-bottom-right-corner, mouse-drag-bottom-edge)
(mouse-drag-bottom-left-corner): Call 'mouse-drag-frame-resize'
instead of 'mouse-drag-frame'.
(mouse-drag-frame): Split into two new functions -
'mouse-drag-frame-move' and 'mouse-drag-frame-resize'.
(mouse-drag-frame-resize, mouse-drag-frame-move): New functions
to implement functionality of the removed 'mouse-drag-frame'.
Martin Rudalics [Mon, 6 Apr 2020 07:22:36 +0000 (09:22 +0200)]
Fix some problems with moving and resizing child frames
(1) Provide new option 'x-gtk-resize-child-frames' which allows
to either hide a child frame during resizing or asks GTK to
resize it "immediately". This is needed because desktops like
GNOME shell otherwise won't allow resizing child frames at all.
(2) Do not try to synchronize the position of a child frame
after moving it. Needed because the present implementation
introduces a 0.5 secs delay which makes dragging child frames
virtually impossible with Lucid and Motif toolkits on desktops
like GNOME shell that use invisible outer frame borders.
For further information see the thread starting with
https://lists.gnu.org/archive/html/emacs-devel/2020-01/msg00343.html
* src/frame.c (syms_of_frame): New symbol Qxg_frame_set_char_size_4.
* src/gtkutil.c (xg_frame_set_char_size): Hide child frame
during resizing when 'x-gtk-resize-child-frames' equals 'hide'.
* src/xfns.c (x_set_parent_frame, Fx_create_frame): Set
gtk_container_resize_mode to GTK_RESIZE_IMMEDIATE for child
frames when'x-gtk-resize-child-frames' equals 'resize-mode'.
(Fx_gtk_debug): New function to toggle interactive GTK debugging
from within Emacs.
(syms_of_xfns): New symbols Qhide and Qresize_mode.
(x-gtk-resize-child-frames): New option that allows to resize
child frames on desktops like GNOME shell (with the mutter WM)
that otherwise refuse to resize them.
* src/xterm.c (x_set_offset): Don't x_sync_with_move for child
frames, it makes moving child frames virtually impossible with
the Lucid and Motif toolkits.
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