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vim-patch:9.0.0115: when 'cmdheight' is zero pressing ':' may scroll a window

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Problem:    When 'cmdheight' is zero pressing ':' may scroll a window.
Solution:   Add the made_cmdheight_nonzero flag and set 'scrolloff' to zero.
6747cf1671
This commit is contained in:
Shougo Matsushita 2022-07-31 17:19:17 +09:00 committed by zeertzjq
parent 81a1d26c3e
commit 63244f68e7
3 changed files with 20 additions and 2 deletions
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16
src/nvim/ex_getln.c
View File

@ -692,9 +692,19 @@ static uint8_t *command_line_enter(int firstc, long count, int indent, bool init
const bool cmdheight0 = !ui_has_messages();
if (cmdheight0) {
// If cmdheight is 0, cmdheight must be set to 1 when we enter command line.
const long save_so = lastwin->w_p_so;
// If cmdheight is 0, cmdheight must be set to 1 when we enter the
// command line. Set "made_cmdheight_nonzero" and reset 'scrolloff' to
// avoid scrolling the last window.
made_cmdheight_nonzero = true;
lastwin->w_p_so = 0;
set_option_value("ch", 1L, NULL, 0);
update_screen(VALID); // redraw the screen NOW
made_cmdheight_nonzero = false;
lastwin->w_p_so = save_so;
}
// can be invoked recursively, identify each level
@ -991,10 +1001,14 @@ theend:
}
if (cmdheight0) {
made_cmdheight_nonzero = true;
// Restore cmdheight
set_option_value("ch", 0L, NULL, 0);
// Redraw is needed for command line completion
redraw_all_later(CLEAR);
made_cmdheight_nonzero = false;
}
return p;

3
src/nvim/globals.h
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@ -1084,4 +1084,7 @@ EXTERN char windowsVersion[20] INIT(= { 0 });
EXTERN int exit_need_delay INIT(= 0);
// Set when 'cmdheight' is changed from non-zero to one temporarily.
EXTERN int made_cmdheight_nonzero INIT(= false);
#endif // NVIM_GLOBALS_H

3
src/nvim/window.c
View File

@ -6306,7 +6306,8 @@ void win_set_inner_size(win_T *wp)
// There is no point in adjusting the scroll position when exiting. Some
// values might be invalid.
if (!exiting) {
// Skip scroll_to_fraction() when 'cmdheight' was set to one from zero.
if (!exiting && !made_cmdheight_nonzero) {
scroll_to_fraction(wp, prev_height);
}
redraw_later(wp, NOT_VALID); // SOME_VALID??