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Cleanup: moved the osc-133 marker save/restore into screen-write.c closer to where the issue existed.

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This commit is contained in:
Michael Grant
2026-10-03 09:53:53 +01:00
parent 1632bbe8ce
commit 9e69abca01
4 changed files with 99 additions and 75 deletions
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78
input.c
View File

@@ -95,14 +95,6 @@ struct input_param {
};
};
/* Saved OSC 133 output marker. */
struct input_osc_133_ctx {
int running;
u_int start;
u_int col;
u_int collected;
};
/* Input parser context. */
struct input_ctx {
struct window_pane *wp;
@@ -181,9 +173,6 @@ static void input_osc_110(struct input_ctx *, const char *);
static void input_osc_111(struct input_ctx *, const char *);
static void input_osc_112(struct input_ctx *, const char *);
static void input_osc_133(struct input_ctx *, const char *);
static struct input_osc_133_ctx input_osc_133_save_marker(struct input_ctx *);
static void input_osc_133_restore_marker(struct input_ctx *,
const struct input_osc_133_ctx *);
/* Transition entry/exit handlers. */
static void input_clear(struct input_ctx *);
@@ -947,6 +936,7 @@ input_reset(struct input_ctx *ictx, int clear)
screen_write_start_pane(sctx, wp, &wp->base);
else
screen_write_start(sctx, &wp->base);
sctx->owner = wp;
screen_write_reset(sctx);
screen_write_stop(sctx);
}
@@ -1075,6 +1065,7 @@ input_parse_buffer(struct window_pane *wp, const u_char *buf, size_t len)
screen_write_start_pane(sctx, wp, &wp->base);
else
screen_write_start(sctx, &wp->base);
sctx->owner = wp;
log_debug("%s: %%%u %s, %zu bytes: %.*s", __func__, wp->id,
ictx->state->name, len, (int)len, buf);
@@ -1094,6 +1085,7 @@ input_parse_screen(struct input_ctx *ictx, struct screen *s,
return;
screen_write_start_callback(sctx, s, cb, arg);
sctx->owner = ictx->wp;
input_parse(ictx, buf, len);
screen_write_stop(sctx);
}
@@ -1477,7 +1469,6 @@ input_csi_dispatch(struct input_ctx *ictx)
struct screen *s = sctx->s;
const struct input_table_entry *entry;
struct options *oo;
struct input_osc_133_ctx osc133 = {0};
int i, n, m, ek, set, p;
u_int cx, bg = ictx->cell.cell.bg;
@@ -1751,19 +1742,13 @@ input_csi_dispatch(struct input_ctx *ictx)
case -1:
break;
case 0:
/* Erasing to the end clears the whole screen at 0,0. */
if (s->cx == 0 && s->cy == 0)
osc133 = input_osc_133_save_marker(ictx);
screen_write_clearendofscreen(sctx, bg);
input_osc_133_restore_marker(ictx, &osc133);
break;
case 1:
screen_write_clearstartofscreen(sctx, bg);
break;
case 2:
osc133 = input_osc_133_save_marker(ictx);
screen_write_clearscreen(sctx, bg);
input_osc_133_restore_marker(ictx, &osc133);
break;
case 3:
if (input_get(ictx, 1, 0, 0) == 0) {
@@ -3310,63 +3295,6 @@ input_osc_133_mark_prompt(struct grid_line *gl, u_int col, const char *p)
gl->flags |= GRID_LINE_START_PROMPT;
}
/* Save the running command's output start before clearing the screen. */
static struct input_osc_133_ctx
input_osc_133_save_marker(struct input_ctx *ictx)
{
struct window_pane *wp = ictx->wp;
struct screen *s = ictx->ctx.s;
struct grid *gd = s->grid;
struct grid_line *gl;
struct input_osc_133_ctx ctx = {0};
u_int y;
if (wp == NULL || s != &wp->base || SCREEN_IS_ALTERNATE(s) ||
(~wp->flags & PANE_CMDRUNNING))
return (ctx);
ctx.running = 1;
ctx.start = UINT_MAX;
ctx.collected = gd->scroll_collected;
for (y = gd->hsize + gd->sy; y > 0; y--) {
gl = grid_get_line(gd, y - 1);
if ((gl->flags & GRID_LINE_START_OUTPUT) &&
(~gl->flags & GRID_LINE_END_OUTPUT ||
gl->osc133_data.out_end_col < gl->osc133_data.out_start_col) &&
(~gl->flags & GRID_LINE_START_PROMPT ||
gl->osc133_data.prompt_col <= gl->osc133_data.out_start_col)) {
ctx.start = y - 1;
ctx.col = gl->osc133_data.out_start_col;
break;
}
if (gl->flags & (GRID_LINE_START_PROMPT|GRID_LINE_END_OUTPUT))
break;
}
return (ctx);
}
/* Restore the running command's output start if a screen clear removed it. */
static void
input_osc_133_restore_marker(struct input_ctx *ictx,
const struct input_osc_133_ctx *ctx)
{
struct grid *gd = ictx->ctx.s->grid;
struct grid_line *gl;
u_int collected;
if (!ctx->running)
return;
collected = gd->scroll_collected - ctx->collected;
if (ctx->start != UINT_MAX && ctx->start >= collected) {
gl = grid_get_line(gd, ctx->start - collected);
if ((gl->flags & GRID_LINE_START_OUTPUT) &&
gl->osc133_data.out_start_col == ctx->col)
return;
}
gl = grid_get_line(gd, gd->hsize);
gl->flags |= GRID_LINE_START_OUTPUT;
gl->osc133_data.out_start_col = 0;
}
/* Handle the OSC 133 sequence. */
static void
input_osc_133(struct input_ctx *ictx, const char *p)

19
regress/output-commands.sh
View File

@@ -202,6 +202,25 @@ for integration in plain marked; do
done
done
# Preserve C when the clear happens while copy mode suppresses tty updates.
$TMUX set-option -g scroll-on-clear off || exit 1
$TMUX new-window -d -n modeclear "seq 1 40; printf '\\033]133;A\\007p\\$ \\033]133;B\\007clear; echo hello; echo world\\n\\033]133;C\\007before\\n'; $TMUX wait-for -S modeclear-ready; $TMUX wait-for modeclear-go; printf '\\033[H\\033[2Jhello\\nworld\\n\\033]133;D;0\\007\\033]133;A\\007p\\$ \\033]133;B\\007'; $TMUX wait-for -S modeclear-done; exec sleep 100" || exit 1
$TMUX wait-for modeclear-ready || exit 1
$TMUX copy-mode -t :modeclear || exit 1
$TMUX wait-for -S modeclear-go || exit 1
$TMUX wait-for modeclear-done || exit 1
sleep 1
[ "$($TMUX display-message -p -t :modeclear.0 '#{pane_in_mode}')" = 1 ] || exit 1
$TMUX send-keys -t :modeclear.0 -X cancel || exit 1
$TMUX copy-mode -t :modeclear || exit 1
$TMUX send-keys -t :modeclear.0 -X cursor-up || exit 1
$TMUX send-keys -t :modeclear.0 C-o || exit 1
[ "$($TMUX display-message -p -t :modeclear.0 '#{selection_present}')" = 1 ] || exit 1
$TMUX set-buffer sentinel || exit 1
$TMUX send-keys -t :modeclear.0 -X copy-selection || exit 1
[ "$($TMUX show-buffer)" = "$(printf 'hello\nworld')" ] || exit 1
$TMUX send-keys -t :modeclear.0 -X cancel || exit 1
# Preserve C when scroll-on-clear keeps the command's earlier output.
$TMUX set-option -g scroll-on-clear on || exit 1
$TMUX new-window -d -n preserve "printf '\\033]133;A\\007p\\$ \\033]133;B\\007echo before; clear; echo hello; echo world\\n\\033]133;C\\007before\\n\\033[H\\033[2Jhello\\nworld\\n\\033]133;D;0\\007\\033]133;A\\007p\\$ \\033]133;B\\007'; exec sleep 100" || exit 1

76
screen-write.c
View File

@@ -401,6 +401,7 @@ screen_write_start_pane(struct screen_write_ctx *ctx, struct window_pane *wp,
s = wp->screen;
screen_write_init(ctx, s);
ctx->wp = wp;
ctx->owner = wp;
if (log_get_level() != 0) {
log_debug("%s: size %ux%u, pane %%%u (at %u,%u)",
@@ -2061,6 +2062,71 @@ screen_write_carriagereturn(struct screen_write_ctx *ctx)
screen_write_set_cursor(ctx, 0, -1);
}
/* Saved OSC 133 output marker. */
struct screen_write_osc_133_ctx {
int running;
u_int start;
u_int col;
u_int collected;
};
/* Save the running command's output start before clearing the screen. */
static struct screen_write_osc_133_ctx
screen_write_osc_133_save_marker(struct screen_write_ctx *sctx)
{
struct window_pane *wp = sctx->owner;
struct screen *s = sctx->s;
struct grid *gd = s->grid;
struct grid_line *gl;
struct screen_write_osc_133_ctx ctx = {0};
u_int y;
if (wp == NULL || s != &wp->base || SCREEN_IS_ALTERNATE(s) ||
(~wp->flags & PANE_CMDRUNNING))
return (ctx);
ctx.running = 1;
ctx.start = UINT_MAX;
ctx.collected = gd->scroll_collected;
for (y = gd->hsize + gd->sy; y > 0; y--) {
gl = grid_get_line(gd, y - 1);
if ((gl->flags & GRID_LINE_START_OUTPUT) &&
(~gl->flags & GRID_LINE_END_OUTPUT ||
gl->osc133_data.out_end_col < gl->osc133_data.out_start_col) &&
(~gl->flags & GRID_LINE_START_PROMPT ||
gl->osc133_data.prompt_col <= gl->osc133_data.out_start_col)) {
ctx.start = y - 1;
ctx.col = gl->osc133_data.out_start_col;
break;
}
if (gl->flags & (GRID_LINE_START_PROMPT|GRID_LINE_END_OUTPUT))
break;
}
return (ctx);
}
/* Restore the running command's output start if a screen clear removed it. */
static void
screen_write_osc_133_restore_marker(struct screen_write_ctx *sctx,
const struct screen_write_osc_133_ctx *ctx)
{
struct grid *gd = sctx->s->grid;
struct grid_line *gl;
u_int collected;
if (!ctx->running)
return;
collected = gd->scroll_collected - ctx->collected;
if (ctx->start != UINT_MAX && ctx->start >= collected) {
gl = grid_get_line(gd, ctx->start - collected);
if ((gl->flags & GRID_LINE_START_OUTPUT) &&
gl->osc133_data.out_start_col == ctx->col)
return;
}
gl = grid_get_line(gd, gd->hsize);
gl->flags |= GRID_LINE_START_OUTPUT;
gl->osc133_data.out_start_col = 0;
}
/* Clear to end of screen from cursor. */
void
screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
@@ -2072,6 +2138,7 @@ screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
u_int y, i, xoff, yoff, ocx, ocy;
struct visible_ranges *r;
struct visible_range *ri;
struct screen_write_osc_133_ctx osc133 = {0};
#ifdef ENABLE_SIXEL
if (image_check_line(s, s->cy, sy - s->cy) && ctx->wp != NULL)
@@ -2081,6 +2148,10 @@ screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
screen_write_initctx(ctx, &ttyctx, 1, 1);
ttyctx.bg = bg;
/* Erasing to the end clears the whole screen at 0,0. */
if (s->cx == 0 && s->cy == 0)
osc133 = screen_write_osc_133_save_marker(ctx);
/* Scroll into history if it is enabled and clearing entire screen. */
if (s->cx == 0 &&
s->cy == 0 &&
@@ -2093,6 +2164,7 @@ screen_write_clearendofscreen(struct screen_write_ctx *ctx, u_int bg)
grid_view_clear(gd, s->cx, s->cy, sx - s->cx, 1, bg);
grid_view_clear(gd, 0, s->cy + 1, sx, sy - (s->cy + 1), bg);
}
screen_write_osc_133_restore_marker(ctx, &osc133);
screen_write_collect_clear(ctx, s->cy + 1, sy - (s->cy + 1));
screen_write_collect_flush(ctx, 0, __func__);
@@ -2226,6 +2298,7 @@ screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
u_int y, i, xoff, yoff, ocx, ocy;
struct visible_ranges *r;
struct visible_range *ri;
struct screen_write_osc_133_ctx osc133;
#ifdef ENABLE_SIXEL
if (image_free_all(s) && ctx->wp != NULL)
@@ -2235,6 +2308,8 @@ screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
screen_write_initctx(ctx, &ttyctx, 1, 1);
ttyctx.bg = bg;
osc133 = screen_write_osc_133_save_marker(ctx);
/* Scroll into history if it is enabled. */
if ((s->grid->flags & GRID_HISTORY) &&
ctx->wp != NULL &&
@@ -2242,6 +2317,7 @@ screen_write_clearscreen(struct screen_write_ctx *ctx, u_int bg)
grid_view_clear_history(s->grid, bg);
else
grid_view_clear(s->grid, 0, 0, sx, sy, bg);
screen_write_osc_133_restore_marker(ctx, &osc133);
screen_write_collect_clear(ctx, 0, sy);

1
tmux.h
View File

@@ -1120,6 +1120,7 @@ typedef void (*screen_write_init_ctx_cb)(struct screen_write_ctx *,
struct tty_ctx *);
struct screen_write_ctx {
struct window_pane *wp;
struct window_pane *owner; /* pane for screen metadata */
struct screen *s;
int flags;