* src/xterm.c (handle_one_xevent): Clear last_mouse_motion_frame
and last_mouse_glyph_frame on LeaveNotify. Otherwise, mouse
face will be restored by gui_redo_mouse_highlight and will not
be restored if an EnterNotify is later sent on top of the same
glyph.
For discussion, see:
https://lists.gnu.org/r/emacs-devel/2022-07/msg00761.html
* src/pdumper.c (dump_buffer): Dump new field
long_line_optimizations_p introduced in commit e7b5912b23 of
2022-07-16 "Improvements to long lines handling."
(dump_buffer) [CHECK_STRUCTS]: Update hash accordingly
for --enable-checking=structs.
* src/xterm.c (x_dnd_begin_drag_and_drop): Clear new flag.
(x_dnd_update_tooltip_position): Save last tooltip X and Y
somewhere, so we don't move it upon client lists being updated.
* lisp/x-dnd.el (x-dnd-hscroll-flags): Delete function.
(x-dnd-get-modifiers, x-dnd-wheel-modifier-type): New functions.
(x-dnd-mwheel-scroll): Use that to determine hscroll instead.
* src/window.c (set_window_hscroll): Mark window as needing
redisplay if the hscroll really changed.
* src/xterm.c (x_get_last_toolkit_time): New function.
(x_scroll_bar_to_input_event)
(x_horizontal_scroll_bar_to_input_event): Use it to retrieve
toolkit time.
(xg_scroll_callback, xg_end_scroll_callback): Set last user time
if possible.
* src/xdisp.c (redisplay_window): Increase the threshold above which
long lines detection is performed in the buffer. This should avoid
triggering that detection for most simple editing operations.
* src/lisp.h (modiff_incr): Explain why the counter is incremented
logarithmically.
* src/buffer.h (struct buffer_text): Adapt the comment about the
'modiff' field accordingly.
* src/buffer.c (modify_overlay): Increase the counter by 1 instead of
the size of the buffer section on which the overlay is placed.
* etc/NEWS: Small improvement.
* lisp/term/haiku-win.el (haiku-dnd-wheel-count): New defvar.
(haiku-note-wheel-click, haiku-handle-drag-wheel): New
functions.
* src/haiku_support.cc (EmacsWindow): Get rid of window ID
logic.
(MessageReceived, MouseMoved, be_drag_message): Use thread ID to
identify windows instead of window ID.
* src/haikuselect.c (Fhaiku_drag_message): Record whether or not
the DND frame is a valid drop target.
(haiku_note_drag_wheel): New function.
(syms_of_haikuselect): New defvar.
* src/haikuterm.c (haiku_read_socket): Call
`haiku_note_drag_wheel' when appropriate.
* src/haikuterm.h: Update prototypes.
* src/lisp.h (modiff_incr): Add a parameter to 'modiff_incr' to record
the extent of the modification.
* src/insdel.c (insert_1_both, insert_from_string_1, insert_from_gap,
insert_from_buffer_1, adjust_after_replace, replace_range,
replace_range_2, del_range_2, modify_text): Add an argument to each
call to 'modiff_incr'.
* src/textprop.c (modify_text_properties): Add an argument to the call
to 'modiff_incr'.
* src/buffer.c (Frestore_buffer_modified_p, Fbuffer_swap_text,
modify_overlay): Add an argument to each call to 'modiff_incr'.
* src/xdisp.c (redisplay_window): Use the improved version of 'MODIFF'
for the heuristic.
This is provided by the XDND protocol, so it isn't fair for it
to not work with local drag-and-drop.
* lisp/x-dnd.el (x-dnd-note-wheel-movement): New function. Set
it as the `x-dnd-wheel-function'.
* src/xterm.c (x_dnd_cleanup_drag_and_drop): Clear new flags.
(x_dnd_note_self_wheel): New function. Set some flags.
(x_dnd_process_quit, x_dnd_begin_drag_and_drop, handle_one_xevent)
(x_connection_closed, x_delete_terminal, mark_xterm): Handle and
set new wheel movement flags
(syms_of_xterm): New variable `x-dnd-wheel-function'.
* src/buffer.h (struct buffer_text): New 'unchanged_size' field.
(BUF_UNCHANGED_SIZE): New macro to access the field.
* src/buffer.c (Fget_buffer_create): Initialize the field.
(Fbuffer_swap_text): Handle it.
* src/xdisp.c (mark_window_display_accurate_1): Set the field.
(redisplay_window): Use the field for long lines detection.
* src/w32proc.c (reader_thread): Wait for 'sys_close' to finish
processing the pipe read descriptor, before trying to close it.
* src/w32.c (sys_close): Attempt to detect when the reader thread
already exited, so that it would be possible to close descriptors
open by pipe processes for reading from the pipe. (Bug#56606)
