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fix(tui): start flush earlier (#26463)

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Problem:  TUI flush (start sync or hide cursor) only starts on a "flush"
          event, which is too late.
Solution: Start the next flush when anything will be drawn.
This commit is contained in:
zeertzjq 2023-12-08 10:25:38 +08:00 committed by GitHub
parent 3bb5d2f219
commit 999e167a52
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GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 20 additions and 3 deletions
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23
src/nvim/tui/tui.c
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@ -76,8 +76,9 @@ struct TUIData {
size_t bufpos;
TermInput input;
uv_loop_t write_loop;
bool dirty; ///< whether there has been drawing since the last tui_flush()
unibi_term *ut;
char *term; // value of $TERM
char *term; ///< value of $TERM
union {
uv_tty_t tty;
uv_pipe_t pipe;
@ -900,6 +901,8 @@ static void print_cell_at_pos(TUIData *tui, int row, int col, UCell *cell, bool
return;
}
tui_set_dirty(tui);
cursor_goto(tui, row, col);
char buf[MAX_SCHAR_SIZE];
@ -925,6 +928,8 @@ static void clear_region(TUIData *tui, int top, int bot, int left, int right, in
{
UGrid *grid = &tui->grid;
tui_set_dirty(tui);
update_attrs(tui, attr_id);
// Background is set to the default color and the right edge matches the
@ -1242,6 +1247,8 @@ void tui_grid_scroll(TUIData *tui, Integer g, Integer startrow, Integer endrow,
|| tui->can_set_left_right_margin)));
if (can_scroll) {
tui_set_dirty(tui);
// Change terminal scroll region and move cursor to the top
if (!tui->scroll_region_is_full_screen) {
set_scroll_region(tui, top, bot, left, right);
@ -1311,6 +1318,15 @@ void tui_default_colors_set(TUIData *tui, Integer rgb_fg, Integer rgb_bg, Intege
invalidate(tui, 0, tui->grid.height, 0, tui->grid.width);
}
static void tui_set_dirty(TUIData *tui)
FUNC_ATTR_NONNULL_ALL
{
if (!tui->dirty) {
tui->dirty = true;
tui_flush_start(tui);
}
}
/// Begin flushing the TUI. If 'termsync' is set and the terminal supports synchronized updates,
/// begin a synchronized update. Otherwise, hide the cursor to avoid cursor jumping.
static void tui_flush_start(TUIData *tui)
@ -1360,7 +1376,7 @@ void tui_flush(TUIData *tui)
tui_busy_stop(tui); // avoid hidden cursor
}
tui_flush_start(tui);
tui_set_dirty(tui);
while (kv_size(tui->invalid_regions)) {
Rect r = kv_pop(tui->invalid_regions);
@ -1389,9 +1405,10 @@ void tui_flush(TUIData *tui)
cursor_goto(tui, tui->row, tui->col);
assert(tui->dirty);
tui_flush_end(tui);
flush_buf(tui);
tui->dirty = false;
}
/// Dumps termcap info to the messages area, if 'verbose' >= 3.