* .gitignore: Add binaries specific to Haiku.
* Makefie.in (HAVE_BE_APP): New variable.
(install-arch-dep): Install Emacs and Emacs.pdmp when
using Haiku.
* configure.ac: Detect and configure for Haiku and
various related configurations.
(be-app, be-freetype, be-cairo): New options.
(HAVE_BE_APP, HAIKU_OBJ, HAIKU_CXX_OBJ)
(HAIKU_LIBS, HAIKU_CFLAGS): New variables.
(HAIKU, HAVE_TINY_SPEED_T): New define.
(emacs_config_features): Add BE_APP.
* doc/emacs/Makefile.in (EMACSSOURCES): Add Haiku
appendix.
* doc/emacs/emacs.texi: Add Haiku appendix to menus and
include it.
* doc/emacs/haiku.texi: New Haiku appendix.
* doc/lispref/display.texi (Defining Faces, Window Systems):
Explain meaning of `haiku' as a window system identifier.
(haiku-use-system-tooltips): Explain meaning of system
tooltips on
Haiku.
* doc/lispref/frames.texi (Multiple Terminals): Explain
meaning of haiku as a display type.
(Frame Layout): Clarify section for Haiku frames.
(Size Parameters): Explain limitations of fullwidth and
fullheight on Haiku.
(Management Parameters): Explain limitations of
inhibiting double buffering on builds with Cairo,
and the inability of frames with no-accept-focus to
receive keyboard input on Haiku.
(Font and Color Parameters): Explain the different font
backends available on Haiku.
(Raising and Lowering): Explain that lowering and
restacking frames doesn't work on Haiku.
(Child Frames): Explain oddities of child frame
visibility on Haiku.
* doc/lispref/os.texi (System Environment): Explain
meaning of haiku.
* etc/MACHINES: Add appropriate notices for Haiku.
* etc/NEWS: Document changes.
* etc/PROBLEMS: Document font spacing bug on Haiku.
* lib-src/Makefile.in: Build be-resources binary on
Haiku.
(CXX, CXXFLAGS, NON_CXX_FLAGS, ALL_CXXFLAGS)
(HAVE_BE_APP, HAIKU_LIBS, HAIKU_CFLAGS): New variables.
(DONT_INSTALL): Add be-resources binary if on Haiku.
(be-resources): New target.
* lib-src/be_resources: Add helper binary for setting
resources on the Emacs application.
* lib-src/emacsclient.c (decode_options): Set
alt_display to "be" on Haiku.
* lisp/cus-edit.el (custom-button, custom-button-mouse)
(custom-button-unraised, custom-button-pressed): Update
face definitions for Haiku.
* lisp/cus-start.el: Add haiku-debug-on-fatal-error and
haiku-use-system-tooltips.
* lisp/faces.el (face-valid-attribute-values): Clarify
attribute comment for Haiku.
(tool-bar): Add appropriate toolbar color for Haiku.
* lisp/frame.el (haiku-frame-geometry)
(haiku-mouse-absolute-pixel-position)
(haiku-set-mouse-absolute-pixel-position)
(haiku-frame-edges)
(haiku-frame-list-z-order): New function declarations.
(frame-geometry, frame-edges)
(mouse-absolute-pixel-position)
(set-mouse-absolute-pixel-position)
(frame-list-z-order): Call appropriate window system
functions on Haiku.
(display-mouse-p, display-graphic-p)
(display-images-p, display-pixel-height)
(display-pixel-width, display-mm-height)
(display-mm-width, display-backing-store)
(display-save-under, display-planes)
(display-color-cells, display-visual-class): Update type
tests for Haiku.
* lisp/international/mule-cmds.el
(set-coding-system-map): Also
prevent set-terminal-coding-system from appearing in the menu
bar on Haiku.
* lisp/loadup.el: Load Haiku-specific files when built
with Haiku, and don't rename newly built Emacs on Haiku as BFS
doesn't support hard links.
* lisp/menu-bar.el (menu-bar-open): Add for Haiku.
* lisp/mwheel.el (mouse-wheel-down-event): Expect
wheel-up on Haiku.
(mouse-wheel-up-event): Expect wheel-down on Haiku.
(mouse-wheel-left-event): Expect wheel-left on Haiku.
(mouse-wheel-right-event): Expect wheel-right on Haiku.
* lisp/net/browse-url.el
(browse-url--browser-defcustom-type):
Add option for WebPositive.
(browse-url-webpositive-program): New variable.
(browse-url-default-program): Search for WebPositive.
(browse-url-webpositive): New function.
* lisp/net/eww.el (eww-form-submit, eww-form-file)
(eww-form-checkbox, eww-form-select): Define faces
appropriately for Haiku.
* lisp/term/haiku-win.el: New file.
* lisp/tooltip.el (menu-or-popup-active-p): New function
declaration.
(tooltip-show-help): Don't use tooltips on Haiku when a
menu is active.
* lisp/version.el (haiku-get-version-string): New
function declaration.
(emacs-version): Add Haiku version string if
appropriate.
* src/Makefile.in: Also produce binary named "Emacs"
with Haiku resources set.
(CXX, HAIKU_OBJ, HAIKU_CXX_OBJ, HAIKU_LIBS)
(HAIKU_CFLAGS, HAVE_BE_APP, NON_CXX_FLAGS)
(ALL_CXX_FLAGS): New variables.
(.SUFFIXES): Add .cc.
(.cc.o): New target.
(base_obj): Add Haiku C objects.
(doc_obj, obj): Split objects that should scanned for
documentation into doc_obj.
(SOME_MACHINE_OBJECTS): Add appropriate Haiku C objects.
(all): Depend on Emacs and Emacs.pdmp on Haiku.
(LIBES): Add Haiku libraries.
(gl-stamp)
($(etc)/DOC): Scan doc_obj instead of obj
(temacs$(EXEEXT): Use C++ linker on Haiku.
(ctagsfiles3): New variable.
(TAGS): Scan C++ files.
* src/alloc.c (garbage_collect): Mark Haiku display.
* src/dispextern.h (HAVE_NATIVE_TRANSFORMS): Also enable
on Haiku.
(struct image): Add fields for Haiku transforms.
(RGB_PIXEL_COLOR): Define to unsigned long on Haiku as
well.
(sit_for): Also check USABLE_SIGPOLL.
(init_display_interactive): Set initial window system to
Haiku on Haiku builds.
* src/emacs.c (main): Define Haiku syms and init haiku
clipboard.
(shut_down_emacs): Quit BApplication on Haiku and
trigger debug
on aborts if haiku_debug_on_fatal_error.
(Vsystem_type): Update docstring.
* src/fileio.c (next-read-file-uses-dialog-p): Enable on
Haiku.
* src/filelock.c (WTMP_FILE): Only define if BOOT_TIME
is also defined.
* src/floatfns.c (double_integer_scale): Work around
Haiku libroot brain damage.
* src/font.c (syms_of_font): Define appropriate font
driver symbols for Haiku builds with various options.
* src/font.h: Also enable ftcrfont on Haiku builds with
Cairo.
(font_data_structures_may_be_ill_formed): Also enable on
Haiku builds that have Cairo.
* src/frame.c (Fframep): Update doc-string for Haiku
builds and return haiku if appropriate.
(syms_of_frame): New symbol `haiku'.
* src/frame.h (struct frame): Add output data for Haiku.
(FRAME_HAIKU_P): New macro.
(FRAME_WINDOW_P): Test for Haiku frames as well.
* src/ftcrfont.c (RED_FROM_ULONG, GREEN_FROM_ULONG)
(BLUE_FROM_ULONG): New macros.
(ftcrfont_draw): Add haiku specific code for Haiku
builds with Cairo.
* src/ftfont.c (ftfont_open): Set face.
(ftfont_has_char, ftfont_text_extents): Work around
crash.
(syms_of_ftfont): New symbol `mono'.
* src/ftfont.h (struct font_info): Enable Cairo-specific
fields for Cairo builds on Haiku.
* src/haiku_draw_support.cc:
* src/haiku_font_support.cc:
* src/haiku_io.c:
* src/haiku_select.cc:
* src/haiku_support.cc:
* src/haiku_support.h:
* src/haikufns.c:
* src/haikufont.c:
* src/haikugui.h:
* src/haikuimage.c:
* src/haikumenu.c:
* src/haikuselect.c:
* src/haikuselect.h:
* src/haikuterm.c:
* src/haikuterm.h: Add new files for Haiku windowing
support.
* src/haiku.c: Add new files for Haiku operating system
support.
* src/image.c: Implement image transforms and native XPM
support
on Haiku.
(GET_PIXEL, PUT_PIXEL, NO_PIXMAP)
(PIX_MASK_RETAIN, PIX_MASK_DRAW)
(RGB_TO_ULONG, RED_FROM_ULONG, GREEN_FROM_ULONG)
(BLUE_FROM_ULONG, RED16_FROM_ULONG, GREEN16_FROM_ULONG)
(BLUE16_FROM_ULONG): Define to appropriate values on
Haiku.
(image_create_bitmap_from_data): Add Haiku support.
(image_create_bitmap_from_file): Add TODO on Haiku.
(free_bitmap_record): Free bitmap on Haiku.
(image_size_in_bytes): Implement for Haiku bitmaps.
(image_set_transform): Implement on Haiku.
(image_create_x_image_and_pixmap_1): Implement on Haiku,
24-bit or 1-bit only.
(image_destroy_x_image, image_get_x_image): Use correct
img and pixmap values on Haiku.
(lookup_rgb_color): Use correct macro on Haiku.
(image_to_emacs_colors): Implement on Haiku.
(image_disable_image): Disable on Haiku.
(image_can_use_native_api): Test for translator presence
on Haiku.
(native_image_load): Use translator on Haiku.
(imagemagick_load_image): Add Haiku-specific quirks.
(Fimage_transforms_p): Allow rotate90 on Haiku.
(image_types): Enable native XPM support on Haiku.
(syms_of_image): Enable XPM images on Haiku.
* src/keyboard.c (kbd_buffer_get_event)
(handle_async_input, handle_input_available_signal)
(handle_user_signal, Fset_input_interrupt_mode)
(init_keyboard): Check for USABLE_SIGPOLL along with
USABLE_SIGIO.
* src/lisp.h (pD): Work around broken Haiku headers.
(HAVE_EXT_MENU_BAR): Define on Haiku.
(handle_input_available_signal): Enable if we just have
SIGPOLL as well.
* src/menu.c (have_boxes): Return true on Haiku.
(single_menu_item): Enable toolkit menus on Haiku.
(find_and_call_menu_selection): Also enable on Haiku.
* src/process.c (keyboard_bit_set): Enable with only
usable SIGPOLL.
(wait_reading_process_output): Test for SIGPOLL as well
as SIGIO availability.
* src/sound.c (sound_perror, vox_open)
(vox_configure, vox_close): Enable for usable SIGPOLL as
well.
* src/sysdep.c (sys_subshell): Enable for usable SIGPOLL.
(reset_sigio): Make conditional on F_SETOWN.
(request_sigio, unrequest_sigio)
(emacs_sigaction_init): Also handle SIGPOLLs.
(init_sys_modes): Disable TCXONC usage on Haiku, as it
doesn't have any ttys other than pseudo ttys, which don't
support C-s/C-q flow control, and causes compiler warnings.
(speeds): Disable high speeds if HAVE_TINY_SPEED_T.
* src/termhooks.h (enum output_method): Add output_haiku.
(struct terminal): Add Haiku display info.
(TERMINAL_FONT_CACHE): Enable for Haiku.
* src/terminal.c (Fterminal_live_p): Return `haiku' if
appropriate.
* src/verbose.mk.in (AM_V_CXX, AM_V_CXXLD): New logging
variables.
* src/xdisp.c (redisplay_internal)
(note_mouse_highlight): Return on Haiku if a popup is activated.
(display_menu_bar): Return on Haiku if frame is a Haiku
frame.
* src/xfaces.c (GCGraphicsExposures): Enable correctly on Haiku.
(x_create_gc): Enable dummy GC code on Haiku.
* src/xfns.c (x-server-version, x-file-dialog): Add
Haiku specifics to doc strings.
* src/xterm.c (syms_of_xterm): Add Haiku information to
doc string.
* configure.ac: Add an option to use XInput 2 if available.
* src/Makefile.in (XINPUT_LIBS, XINPUT_CFLAGS): New variables.
(EMACS_CFLAGS): Add Xinput CFLAGS.
(LIBES): Add XInput libs.
* src/xmenu.c (popup_activated_flag): Expose flag if
XInput 2 is available.
* src/xfns.c (x_window): Set XInput 2 event mask.
(setup_xi_event_mask): New function.
(syms_of_xfns): Provide XInput 2 feature.
* src/xterm.c (x_detect_focus_change): Handle XInput 2
GenericEvents.
(handle_one_xevent): Handle XInput 2 events.
(x_term_init): Ask the server for XInput 2 support and set
xkb_desc if available.
(x_delete_terminal): Free XKB kb desc if it exists, and free
XI2 devices if they exist.
(xi_grab_or_ungrab_device)
(xi_reset_scroll_valuators_for_device_id)
(x_free_xi_devices, x_init_master_valuators): New functions.
(x_get_scroll_valuator_delta): New function.
(init_xterm): Don't tell GTK to only use Core Input when built
with XInput 2 support.
* src/xterm.h (struct x_display_info): Add fields for XKB
and XI2 support.
* src/gtkutil.c (xg_event_is_for_menubar): Handle
XIDeviceEvents.
(xg_is_menu_window): New function.
(xg_event_is_for_scrollbar): Handle XIDeviceEvents.
* etc/NEWS: Document changes.
* lisp/mwheel.el (mouse-wheel-down-alternate-event)
(mouse-wheel-up-alternate-event)
(mouse-wheel-left-alternate-event)
(mouse-wheel-right-alternate-event): New user options.
(mouse-wheel-text-scale)
(mwheel-scroll): Test for alternate events.
(mouse-wheel--setup-bindings): Set up bindings for alternate
buttons.
* lisp/xwidget.el (xwidget-webkit-cookie-file): Don't use "path"
for file names in the doc string. Improve wording and markup of
the doc string.
* src/xwidget.c (Fxwidget_webkit_set_cookie_storage_file):
* doc/lispref/display.texi (Xwidgets): Don't use "path" for file
names.
* etc/NEWS: Improve the wording of the entry about
'xwidget-webkit-cookie-file'.
* doc/lispref/display.texi (Xwidgets): Document new function.
* etc/NEWS: Announce `xwidget-webkit-cookie-file' and
`xwidget-webkit-set-cookie-storage-file'.
* lisp/xwidget.el (xwidget-webkit-cookie-file): New user
option.
(xwidget-webkit-new-session): Set cookie storage file.
* src/xwidget.c (Fmake_xwidget): Create new context for
each unrelated widget.
(Fxwidget_webkit_set_cookie_storage_file): New function.
(syms_of_xwidget): Define new subr.
* doc/lispref/display.texi (Xwidgets): Document new function.
* etc/NEWS: Announce new function.
* src/xwidget.c (Fxwidget_webkit_estimated_load_progress): New
function.
(syms_of_xwidget): Define new subr.
* doc/misc/modus-themes.org (File): Use new version and add release
date.
(How do the themes look like, Learn about the latest changes): Update
link to new URL.
(Enable and load): Update text of internal reference.
(Sample configuration for use-package): Add sample configuration
without the 'use-package' infrastructure.
(Differences between loading and enabling): Minor rewordings.
(Customization Options): Update sample code to cover latest changes.
(Option for inhibiting theme reload)
(Option for color-coding success state (deuteranopia))
(Option for more bold constructs)
(Option for more italic constructs)
(Option for syntax highlighting)
(Option for links)
(Option for command prompt styles)
(Option for mode line presentation)
(Option for accented background in tab interfaces)
(Option for completion framework aesthetics)
(Option for mail citations)
(Option for fringe visibility)
(Option for language checkers)
(Option for line highlighting (hl-line-mode))
(Option for line numbers (display-line-numbers-mode))
(Option for parenthesis matching (show-paren-mode))
(Option for active region)
(Option for diff buffer looks)
(Option for org-mode block styles)
(Option for Org agenda constructs)
(Option for scaled headings)
(Control the scale of headings)
(Option for variable-pitch font in UI elements)
(Option for variable-pitch font in headings): Write brief description,
document the type of the user option, and make any other relevant
adjustments.
(Option for font mixing): Document new 'modus-themes-mixed-fonts' user
option, which supersedes the old 'modus-themes-no-mixed-fonts'.
(Option for mode line padding): Document new user option
'modus-themes-mode-line-padding'.
(Option for language checkers): Include new available property for the
user option 'modus-themes-lang-checkers'. Reword the rest of the
entry.
(Option for intense markup in Org and others): Describe new boolean
option 'modus-themes-intense-markup'.
(Option for Org agenda constructs): Include new available property for
the 'event' key in the alist 'modus-themes-org-agenda'.
(Option for the headings' overall style): Describe the new style of
explicitly specifying an optional font weight other than the implied
bold.
(Font configurations for Org and others (DIY))
(Configure bold and italic faces (DIY)): Reword and clarify some
statements.
(Decrease mode line height (DIY)): Add new Do-It-Yourself section on
tweaking the mode line's :box attribute.
(Full support for packages or face groups): Include new packages.
(Acknowledgements): Update list of contributors to code, user
feedback, etc. Does not affect the status of copyright assignment.
(Meta): Update URLs to protesilaos.com (my website).
* etc/themes/modus-themes.el (modus-themes-variable-pitch)
(modus-themes-fixed-pitch, modus-themes-no-mixed-fonts): Reference the
new 'modus-themes-mixed-fonts' user option.
(modus-themes--headings-choice): Include new font weight styles.
(modus-themes-headings): Document the new feature of accepting an
explicit font weight.
(modus-themes-org-agenda): Document the refinements to the 'event' key
of the alist and the new 'varied' property it accepts.
(modus-themes-lang-checkers): Describe the new 'faint' property.
(modus-themes-mode-line-padding): Include new user option.
(modus-themes-intense-hl-line): Remove old-deprecated user option.
(modus-themes-intense-markup): Add new option.
(modus-themes-success-deuteranopia): Update doc string.
(modus-themes--fixed-pitch): Work with 'modus-themes-mixed-fonts'.
(modus-themes--lang-check): Update internal function to add the
'faint' property of 'modus-themes-lang-checkers'.
(modus-themes--markup): Add helper function.
(modus-themes--heading-weights): Private variable with available font
weights.
(modus-themes--heading-weight): New helper function to pick the
desired font weight.
(modus-themes--heading): Update helper function to implement the
aforementioned change to 'modus-themes-headings'.
(modus-themes--agenda-event): Update helper function to apply the new
styles of 'modus-themes-org-agenda'.
(modus-themes--mode-line-padding): Add helper function for
'modus-themes-mode-line-padding'.
(modus-themes--mode-line-attrs): Minor refinements.
(modus-themes-load-operandi, modus-themes-load-vivendi): Make these
functions interactive.
(modus-themes-faces): Update faces.
* etc/themes/modus-operandi-theme.el: Bump version number.
* etc/themes/modus-vivendi-theme.el: Same.
* * *
A detailed change log entry is available here:
<https://protesilaos.com/codelog/2021-11-18-modus-themes-1-7-0/>.
Make `ert-deftest` fail with an error (in batch mode only) if an
existing test is redefined, because that is an easy mistake to make
and which leads to a test being discarded silently.
lisp/emacs-lisp/ert.el (ert-set-test, ert-deftest): Add check.
etc/NEWS: Announce.
* doc/emacs/misc.texi (Embedded WebKit Widgets)
* etc/NEWS: Document `xwidget-webkit-browse-history'.
* lisp/xwidget.el (xwidget-webkit-mode-map): Bind "H" to
xwidget-webkit-browse-history.
(xwidget-webkit-import-widget): Set last session buffer correctly.
(xwidget-webkit-browse-history): New command.
(xwidget-webkit-history--session): New variable.
(xwidget-webkit-history--insert-item)
(xwidget-webkit-history-select-item)
(xwidget-webkit-history-reload): New functions.
(xwidget-webkit-history-mode): New major mode.
* lwlib/xlwmenu.h (XtNborderThickness, XtCBorderThickness): New X
resource name.
* lwlib/xlwmenuP.h (XlwMenuPart): New border_thickness field.
* lwlib/xlwmenu.c (xlwMenuResources): Access the new resource.
(draw_shadow_rectangle): Use the new resource value.
* doc/emacs/xresources.texi (Lucid Resources): Document the new
resource (bug#51867).
* lisp/emacs-lisp/ert.el (ert-batch-print-length)
(ert-batch-print-level,.ert-batch-backtrace-line-length)
(ert-batch-test, ert-run-tests-interactively): Added the three
variables, bound them to these settings when formatting batch
test results including backtraces. Removed the optional
parameters output-buffer & message-fn from
ert-run-tests-interactively.
* test/lisp/emacs-lisp/ert-tests.el
(ert-test-run-tests-interactively, ert-test-run-tests-batch): use
cl-letf to capture output, new tests resp.
* test/lisp/ert-x-tests.el (ert-test-run-tests-interactively-2):
Changed to use cl-letf to capture output instead of using
message-fn.
* lisp/emacs-lisp/backtrace.el (backtrace--line-length-or-nil)
(backtrace--print-func-and-args): Fixed a bug when setting
backtrace-line-length to nil by adding a new function to check
for that case & having backtrace--print-func-and-args use it.
* doc/misc/ert.texi: document the new variables & their usage
(bug#51037).
* lisp/keymap.el: New file with all the new keymap-* functions.
* lisp/loadup.el ("keymap"): Load.
* lisp/subr.el (kbd): Refactor out all the code to key-parse.
(define-key-after, keyboard-translate, global-set-key)
(local-set-key, global-unset-key, local-unset-key)
(local-key-binding, global-key-binding)
(substitute-key-definition): Note in doc strings that these are
legacy functions.
(define-keymap--define): Use keymap-set.
* lisp/emacs-lisp/byte-opt.el: Remove the optimizations for
defvar-keymap and define-keymap since the macros now only
understand the kbd syntax.
* lisp/emacs-lisp/bytecomp.el (byte-compile-define-keymap)
(byte-compile-define-keymap--define): Warn about invalid key
definitions in all keymap-* functions.
* lisp/emacs-lisp/shortdoc.el (keymaps): Add shortdocs form
keymap* functions.
* src/keymap.c (possibly_translate_key_sequence): Adjust callers
to key-valid-p and key-parse.
(syms_of_keymap): Adjust defs.
* lisp/image-dired.el
(image-dired-slideshow-delay): New defcustom.
(image-dired--slideshow-initial): New defvar.
(image-dired-slideshow-start): Don't show any prompts when starting a
slideshow, unless user gave a negative prefix argument. Use the value
of the above new defcustom as the default delay.
(image-dired-slideshow-stop): Don't count number of images. Instead,
continue the slideshow until the next command.
(image-dired-slideshow-step): Use the correct buffer.
(image-dired-slideshow-count, image-dired-slideshow-times): Make
obsolete.
(image-dired--slideshow-timer): Rename from
'image-dired-slideshow-timer'. Make the old name into an obsolete
variable alias.
(image-dired-display-image-mode-map)
(image-dired-thumbnail-mode-map): Bind 'image-dired-slideshow-start'
to "S".
(image-dired-thumbnail-mode-menu): Add 'image-dired-slideshow-start'.
Previously, each function in 'tramp-foreign-file-name-handler-alist'
would call 'tramp-dissect-file-name', resulting in it being called
several times whenever 'tramp-find-foreign-file-name-handler' was
called. Now, functions take the dissected file name to avoid this
duplicated effort. (Bug#51699)
* etc/NEWS: Announce this change.
* lisp/net/tramp-adb.el (tramp-adb-file-name-p):
* lisp/net/tramp-ftp.el (tramp-ftp-file-name-p):
* lisp/net/tramp-gvfs.el (tramp-gvfs-file-name-p):
* lisp/net/tramp-rclone.el (tramp-rclone-file-name-p):
* lisp/net/tramp-smb.el (tramp-smb-file-name-p):
* lisp/net/tramp-sshfs.el (tramp-sshfs-file-name-p):
* lisp/net/tramp-sudoedit.el (tramp-sudoedit-file-name-p):
Accept dissected file names.
* lisp/net/tramp.el (tramp-ensure-dissected-file-name): New function.
(tramp-find-foreign-file-name-handler): Pass dissected file name to
functions.
(tramp-connectable-p): Use 'tramp-ensure-dissected-file-name'.
* doc/emacs/misc.texi (Emacs Server): Document the new function.
Also mention that an Emacs server can be started with emacsclient.
* etc/NEWS: Describe the new function (bug#51377).
* lisp/server.el (server-stop-automatically): New function.
(server-stop-automatically): New auxiliary variable.
(server-stop-automatically--maybe-kill-emacs)
(server-stop-automatically--handle-delete-frame): New auxiliary
functions.
(server-save-buffers-kill-terminal): Call the new auxiliary
function when necessary.
* doc/lispref/display.texi (Xwidgets): Document new function.
* etc/NEWS: Announce new function.
* src/xwidget.c (Fxwidget_webkit_load_html): New function.
(syms_of_xwidget): Define new subr.
* doc/lispref/files.texi (File Name Components): Document it.
* lisp/files.el (file-name-split): New function (bug#50572).
* lisp/emacs-lisp/shortdoc.el (file-name): Mention it.
* doc/misc/eww.texi (Advanced): Document it.
* lisp/net/shr.el (shr-use-xwidgets-for-media): New user option.
(shr-tag-video): Use xwidgets to display <video> elements.
* lisp/xwidget.el (xwidget-webkit): New customization group.
(xwidget-webkit-buffer-name-prefix): New user option.
(xwidget-webkit-callback): with-current-buffer only after get title,
which can limit buffer-name change in mode-line.
(xwidget-webkit-new-session, xwidget-webkit-import-widget): Use
current buffer to generate a temp xwidget-webkit buffer.
