* src/xdisp.c (move_it_vertically_backward): Zero out cached value
of line height, to avoid using stale and incorrect values.
(try_window_reusing_current_matrix): Fix conditions for changes in
tab-line height.
Reported by Michael Heerdegen <michael_heerdegen@mailbox.org> in
https://lists.gnu.org/archive/html/help-gnu-emacs/2026-01/msg00163.html
This improves the scrolling a little bit, but doesn't solve the
problem entirely.
* lisp/progmodes/elisp-mode.el (elisp-byte-code-syntax-propertize):
Reset point to just after the start of the previous match so that we
don't skip past the end of the lazy string, which can happen if it's
zero-length; that could lead to an infinite loop.
macOS 26 introduced new event processing behavior that causes scrolling
lag and input handling problems in Emacs. This patch disables two
features via NSUserDefaults when built against the macOS 26 SDK:
- NSEventConcurrentProcessingEnabled
- NSApplicationUpdateCycleEnabled
This fix is based on the equivalent patch in emacs-mac by Mitsuharu
Yamamoto. See: https://bitbucket.org/mituharu/emacs-mac/commits/e52ebfd
* src/nsterm.m (ns_term_init): Disable problematic event processing
when built for macOS 26+. (Bug#80268)
This option controls the format of the help-echo when hovering
over the time display in mode line. (Bug#80143)
* lisp/time.el (display-time-help-echo-format): Add option.
(display-time-string-forms): Use it.
* etc/NEWS (Time): Announce the new option.
This function will truncate a string on a pixelwise basis in a
work buffer and using a binary search rather than brute force.
* lisp/emacs-lisp/subr-x.el (work-buffer--prepare-pixelwise):
New defun helper function.
(string-pixel-width): Use the helper function.
(truncate-string-pixelwise): New defun.
* test/lisp/misc-tests.el (misc-test-truncate-string-pixelwise):
(misc-test-truncate-string-pixelwise-unicode): New test.
* doc/lispref/display.texi (Size of Displayed Text): Document
the function.
* etc/NEWS: Announce the function.
CUA is not necessarily used together with `pixel-scroll-precision-mode'.
Make `pixel-scroll-interpolate-down' and `pixel-scroll-interpolate-up'
independent and avoid loading cua-base.
* lisp/pixel-scroll.el (pixel-scroll-interpolate-up)
(pixel-scroll-interpolate-down): Do not use `cua-scroll-down' and
`cua-scroll-up'; replace them with inline code. (Bug#80245)
Some XWayland setups only report DPI changes through
GDK xsettings, so Emacs missed DPI updates there.
Recognize the GDK DPI and scaling settings and use
them to compute the effective DPI.
* src/xsettings.c (parse_settings): Recognize
Gdk/UnscaledDPI and Gdk/WindowScalingFactor.
Use them to compute DPI when present.
* lisp/vc/vc.el (vc--incoming-revision): Signal an error instead
of returning nil on a cache hit (bug#80270).
(vc--outgoing-base-mergebase): Simplify, given that
vc--incoming-revision now handles the error case.
* lisp/vc/diff-mode.el (diff--revert-kill-hunks): New workhorse
routine.
(diff-hunk-kill, diff-revert-and-kill-hunk): Call it.
(diff-hunk-kill): New BEG and END parameters and interactive
form.
* doc/emacs/files.texi (Diff Mode):
* etc/NEWS: Document the change.
* lisp/emacs-lisp/bytecomp.el (byte-compile-file-form-defalias):
We correctly emit a lazy-loaded doc string but then passed a literal
string to 'defalias' by mistake; fix that. Saves 40 KiB in .elc files.
* lisp/vc/vc-git.el (vc-git--branch-remotes): New function.
(vc-git-trunk-or-topic-p): Use it.
* test/lisp/vc/vc-git-tests.el (vc-git-test-branch-remotes): New
test.
This is exclusively for the benefit of rust-analyzer, which
sends publishDiagnostics for all project files upfront, and
never republishes them on 'didOpen'.
See https://github.com/joaotavora/eglot/issues/1531.
* lisp/progmodes/eglot.el (eglot--flymake-handle-push): Simplify.
Don't flymake-list-only-diagnostics here.
Save original diagnostic in flymake-list-only-diagnostics setting.
(eglot--on-shutdown): Cleanup flymake-list-only-diagnostics.
(eglot--flymake-report-push+pulled): Hack in data from
flymake-list-only-diagnostics.
* lisp/emacs-lisp/checkdoc.el (checkdoc--batch-flag): New variable.
(checkdoc-rogue-spaces, checkdoc-message-text): Use it along the
check for interactive calls to be able to collect errors in the
diagnostic buffer.
(checkdoc-show-diagnostics): Don't show the diagnostic buffer
when 'checkdoc--batch-flag' is non-nil.
(checkdoc-batch): New function to check the buffer and print the
content of the diagnostic buffer.
* lisp/icomplete.el (icomplete-exit): New alias for 'icomplete-fido-exit'.
(icomplete-minibuffer-map): Bind it to "M-j" .
* lisp/replace.el (multi-occur--prompt): Show "M-j" bound to 'icomplete-exit'
in 'icomplete-mode'.
If the completion table requests eager-update (so *Completions*
should be updated as the user types, when already displayed)
then *Completions* will be dismissed automatically if the user
types something which isn't a completion. Previously,
*Completions* wouldn't be redisplayed until the user requests it
again. Now, if the completion table also enables eager-display
in addition to eager-update, then automatically redisplay
*Completions* after it disappears.
* lisp/minibuffer.el (completions--start-eager-display): Add
REQUIRE-EAGER-UPDATE argument and don't run if Completions is
already displayed.
(completions--after-change): Call
'completions--start-eager-display'.
(minibuffer-completion-help): Add the 'completions--after-change'
hook earlier, and let it remove itself (bug#80055).
* lisp/minibuffer.el (minibuffer--message-overlay)
(minibuffer--message-timer): New variables.
(minibuffer--delete-message-overlay): New function.
(minibuffer-message): Use a timer and 'pre-command-hook' to
clear message overlay instead of blocking with
'sit-for'. (bug#79510)
* etc/NEWS: Document the change.
* lisp/tutorial.el (tutorial--default-keys):
Don't sort quoted list in-place. Sort at compile time, not load time.
Uniform key representation (vectors) so that the default comparison can
be used. Eliminate unnecessary backquote.
(tutorial--sort-keys): Remove.
* src/frame.c (delete_frame) [HAVE_X_WINDOWS]: Block input while
child frame is displayed, and process the X events triggered by
that later. Patch by Byakuren (https://web.liminal.cafe/~byakuren/).
(Bug#76186)
Copyright-paperwork-exempt: yes
* lisp/progmodes/xref.el (xref--parse-hits, xref--sort-hits):
Extract from xref-matches-in-directory and xref-matches-in-files.
Use in both for better consistency between these functions.
