* doc/lispref/windows.texi (Buffer Display Action Alists):
Describe new possible values for 'window-height', 'window-width'
and 'window-size' action alist entries.
* lisp/window.el (window--display-buffer): Handle new values for
'window-height', 'window-width' and 'window-size' ALIST entries.
(display-buffer): Update doc-string for new values of some
action alist entries.
* etc/NEWS: Mention new values of some action alist entries.
* lisp/xdg.el (xdg-state-home): New function. This returns
$XDG_STATE_HOME according to the XDG Base Directory Specification
version 0.8 (08th May 2021).
* lisp/image-dired.el (image-dired-show-all-from-dir-max-files):
Double the amount of files in directory before prompting. This could
be even higher, as the thumbnails are generated asynchronously and are
small by default.
* lisp/image-dired.el (image-dired-cmd-create-thumbnail-program)
(image-dired-cmd-create-thumbnail-options)
(image-dired-cmd-create-temp-image-program)
(image-dired-cmd-create-temp-image-options)
(image-dired-cmd-rotate-thumbnail-program)
(image-dired-cmd-rotate-thumbnail-options): Add support for the
GraphicsMagick command line tool ("gm convert", "gm mogrify").
* lisp/image-dired.el
(image-dired--thumbnail-managing-standard-sizes): New defconst.
(image-dired-thumbnail-storage)
(image-dired-thumb-name, image-dired-insert-thumbnail)
(image-dired-thumb-size, image-dired-create-thumb-1): Support larger
thumbnail sizes mandated by new version of the Thumbnail Managing
Standard (December 2020, Version 0.9.0).
* lisp/image-dired.el (image-dired-thumb-name): Improve docstring.
Use SHA1 for hashing when creating file name. SHA1 is slightly faster
than MD5, and has a few more bits.
* doc/lispref/display.texi (Progress): Document it.
* lisp/subr.el (with-delayed-message): New macro.
* src/eval.c (with_delayed_message_display)
(with_delayed_message_cancel): Helper functions.
(Ffuncall_with_delayed_message): New function (bug#19776).
This aims to fix the scenario where on jit-lock's first scan of a type, it is
not recognized as such, and only later does this happen. The fontification of
such found types is now done by background scanning in short time slices
immediately after initialising the mode.
* lisp/progmodes/cc-engine.el (c-add-type-1): New function.
(c-add-type): Extract c-add-type-1 from it, and reformulate the mechanism for
protecting c-found-types from excessive partial identifiers.
* lisp/progmodes/cc-fonts.el (c-font-lock-complex-decl-prepare): Remove the
code which cleared c-found-types on fontification at BOB.
(c-find-types-background): New function, based on c-font-lock-declarations).
(c-type-finder-timer-func): New function.
(c-re-redisplay-timer): New variable.
(c-force-redisplay, c-fontify-new-found-type): New functions.
* lisp/progmodes/cc-mode.el (c-type-finder-timer, c-inhibit-type-finder): New
variables.
(c-leave-cc-mode-mode): Nullify c-post-command-hook, c-post-gc-hook, and
c-type-finder-timer when the last CC Mode buffer of a session is killed.
(c-type-finder-pos): New variable.
(c-basic-common-init): Initialize/Install c-post-command, c-c-type-finder-pos,
c-type-finder-timer, and c-post-gc-hook.
(c-new-id-start, c-new-id-end, c-new-id-is-type): New variables.
(c-update-new-id): New function.
(c-post-command): New post command hook function, used for checking moving
away from partially typed identifiers, and making them full identifiers.
(c-post-gc-hook): New hook to prevent CC Mode activity immediately following
GC, thus allowing keyboard/mouse input to be registered.
(c-before-change): Add code to clear c-found-types on a buffer change at BOB.
(c-after-change): Call c-update-new-id to keep track of partially typed
identifiers.
* doc/misc/cc-mode.texi (Found Types): New @section in the @Chapter Font
Locking.
* lisp/progmodes/cc-vars.el (c-type-finder-time-slot)
(c-type-finder-repeat-time, c-type-finder-chunk-size): New customizable
options.
* lisp/gnus/gnus-sum.el (gnus-summary-first-unread-subject)
(gnus-summary-first-unseen-subject)
(gnus-summary-first-unseen-or-unread-subject): Use it.
(gnus-summary--goto-and-possibly-unhide): New function -- don't
unhide the first thread unless necessary (bug#51344).
* lisp/image-dired.el: Fix documentation on thumbnail file format to
correctly say that it can be either PNG or JPEG; not just JPEG. Also
fix inconsistent formatting in comments.
* lisp/image-dired.el (image-dired-thumbnail-storage): Improve
docstring.
* lisp/image-dired.el (image-dired-cmd-pngnq-program)
(image-dired-cmd-pngnq-options): Add support for pngquant.
Prefer, in this order: pngquant, pngnq-s9, pngnq-s for reasons of
speed and how actively maintained the projects seem to be.
* lisp/help.el (help-link-key-to-documentation): New user option.
(substitute-command-keys): Add a link from keys to the command they
are bound to, if the above new option is non-nil. (Bug#8951)
* etc/NEWS: Announce the new option.
* lisp/dired.el (dired-readin): Use it.
* lisp/dired.el (dired-make-directory-clickable): New user option.
* lisp/dired.el (dired--make-directory-clickable): New function
(bug#21973).
* lisp/dired-x.el (dired-x-guess-file-name-at-point): Make
obsolete in favour of 'thing-at-point'.
(dired-x-read-filename-at-point): Use 'thing-at-point' instead of
above obsolete function.
* doc/misc/cl.texi (Mapping over Sequences): Change the
explanation of 'cl-reduce' so you don't need to have a major in
mathematics to understand it. (Bug#24014)
* doc/lispref/functions.texi (Calling Functions): Improve
documentation of 'apply-partially' to be slightly more clear with
regards to function arity. (Bug#17623)
* lisp/image-dired.el (exif): Require.
(image-dired-cmd-read-exif-data-program)
(image-dired-cmd-read-exif-data-options)
(image-dired-get-exif-data): Make obsolete in favour of using
exif.el. This removes a dependency on external exiftool for some
operations.
(image-dired-get-exif-file-name)
(image-dired-thumbnail-set-image-description): Use exif.el
functions instead of exiftool.
* lisp/image/exif.el (exif-tag-alist): Add description and
copyright fields.
* test/lisp/image-dired-tests.el: New file.
* test/lisp/image/exif-tests.el (exif-elem): Move function from here...
* lisp/image/exif.el (exif-field): ...to here, and rename.
(exif-orientation):
* test/lisp/image/exif-tests.el (test-exif-parse)
(test-exif-parse-short): Use above new function.
