* src/xwidget.c (dummy_tooltip_string): New variable.
(xw_maybe_synthesize_crossing): Call `xg_prepare_tooltip' to
disable tooltips on WebKitGTK 2.34 or later.
(syms_of_xwidget): Make dummy string.
* src/xfns.c (x_get_monitor_attributes): Remove Xinerama check
and use xinerama_supported_p instead.
* src/xterm.c (x_term_init): Set `xinerama_supported_p'
* src/xterm.h (struct x_display_info): New field
`xinerama_supported_p'.
* src/xterm.c (x_update_opaque_region): Remove check that f is
non-NULL.
(handle_one_xevent): If f is NULL and the configure event is for
any's edit widget, use that instead.
Make the context switch code handle buffer-local variables more
correctly by reusing the code originally written for `backtrace-eval`.
This has the side benefit of making the `saved_value` field unused.
* src/lisp.h (enum specbind_tag): Remove `saved_value` field.
(rebind_for_thread_switch, unbind_for_thread_switch): Delete decls.
(specpdl_unrewind): Declare function.
* src/eval.c (specpdl_saved_value): Delete function.
(specbind): Delete the code related to `saved_value`, and consolidate
common code between the different branches.
(rebind_for_thread_switch, -unbind_for_thread_switch): Move to `thread.c`.
(specpdl_unrewind): New function, extracted from `backtrace_eval_unrewind`.
Use `SET_INTERNAL_THREAD_SWITCH`. Skip the buffer & excursion unwinds
depending on new arg `vars_only`.
(backtrace_eval_unrewind): Use it.
(mark_specpdl): Don't mark `saved_value`.
* src/thread.c (rebind_for_thread_switch, unbind_for_thread_switch):
Move from `eval.c` and rewrite using `specpdl_unrewind`.
* test/src/thread-tests.el (threads-test-bug48990): New test.
* test/Makefile.in (test_template): Add a + as suggested by make:
"warning: jobserver unavailable: using -j1. Add '+' to parent make rule".
This changeset is based on code originally posted by
Kenichi Handa <handa@gnu.org> as part of discussing bug#20140,
with a few adjustments and changes, mainly to support R2L
text and provide a user option to control the feature.
* src/xdisp.c (compute_stop_pos, next_element_from_buffer)
(composition_reseat_it): Don't allow auto-composing characters
past point when 'composition-break-at-point' is non-nil.
(syms_of_xdisp) <composition-break-at-point>: New boolean variable.
(redisplay_internal, redisplay_window): Disable "just move the
cursor" optimizations when 'composition-break-at-point' is non-nil.
* src/keyboard.c (command_loop_1): Force redisplay when
'composition-break-at-point' is non-nil.
* lisp/cus-start.el (standard): Provide customization form for
'composition-break-at-point'.
* etc/NEWS: Announce the new feature.
SPECPDL_INDEX becomes much faster because the pointer subtraction,
expensive because of the inconveniently sized specpdl records, is now
gone. This translates to a useful speedup on a wide variety of code.
* src/lisp.h (specpdl_ref, wrap_specpdl_ref, unwrap_specpdl_ref):
Rename member.
(specpdl_count_to_ref, specpdl_ref_to_count)
(specpdl_ref_add, specpdl_ref_to_ptr, SPECPDL_INDEX):
Count offset in bytes rather than in records.
Wrap the specpdl_ref contents in a struct, which gives us some very
useful type checking to make sure that all code that assumed integral
specpdl refs has been converted.
We only do this on 64-bit platforms, since those tend to have modern
ABIs where small structs are optimised as scalars. In other words,
this change should not affect the compiled code.
* src/lisp.h (specpdl_ref): Now a struct on 64-bit platforms.
(wrap_specpdl_ref, unwrap_specpdl_ref): New.
(specpdl_count_to_ref, specpdl_ref_to_count)
(specpdl_ref_eq, specpdl_ref_lt)
(specpdl_ref_valid_p, make_invalid_specpdl_ref): Use new wrappers.
* src/xmenu.c (popup_get_selection): Only claim cookie if new
event will be generated.
(create_and_show_popup_menu): Ungrab XI2 device, then
immediately set core grab on the frame's edit widget window.
* src/xterm.c (handle_one_xevent): Use x_any_window_to_frame to
find exit event frame if a popup menu is active.
* src/xfns.c (x_set_alpha_background): Set opaque region if
opaque.
* src/xterm.c (x_update_opaque_region): New parameter
`configure'. All callers changed.
(handle_one_xevent): Call `x_update_opaque_region' on configure
events.
* src/haiku_select.cc (count_clipboard, count_primary)
(count_secondary): Initialize to -1
(BClipboard_set_system_data)
(BClipboard_set_primary_selection_data)
(BClipboard_set_secondary_selection_data): Store count before
saving to the the clipboard.
(BClipboard_owns_clipboard, BClipboard_owns_primary)
(BClipboard_owns_secondary): Adjust tests accordingly.
The vfork system call exists and works in macOS 11.6 but the compiler
gives a deprecation message; silence it, because the performance is
still better than that of plain fork. See discussion at
https://lists.gnu.org/archive/html/emacs-devel/2022-02/msg00260.html
* src/conf_post.h (VFORK): New #define.
* src/callproc.c (emacs_spawn):
* src/sysdep.c (sys_subshell): Use it.
* src/xftfont.c (struct xftface_info): New fields
`bg_allocated_p' and `fg_allocated_p'.
(xftfont_get_colors): Actually allocate colors and tell the
caller whether colors were allocated.
(xftfont_prepare_face): Set allocated fields.
(xftfont_done_face):
(xftfont_draw): Free colors that were allocated.
* src/xfns.c (x_make_gc): Don't set FillOpaqueStippled on cursor
GC. The reason is that some X servers break on such a fill
style if the operation being performed is not a stiple
operation.
* src/xterm.c (x_make_frame_visible): Change the user time
window if the window manager supports something different from
what it did the first time the frame was made visible.
* src/xterm.c (x_make_frame_visible):
(x_display_set_last_user_time): Use and set user time window if
the WM supports it.
(x_term_init): Intern new atom.
* src/xterm.h (struct x_display_info): New atom
`_NET_WM_USER_TIME_WINDOW'.
(struct x_output): New field `user_time_window'.
* src/xterm.c (x_display_set_last_user_time): Set user time on
the active window.
(handle_one_xevent): Only set user time when the user actually
interacted with Emacs.
(x_make_frame_visible): Set user time if non-zero.
(x_term_init): Intern `_NET_WM_USER_TIME'.
* src/xterm.h (struct x_display_info): New field
`Xatom_net_wm_user_time'.
(x_display_set_last_user_time): Implement in xterm.c instead.
