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Move alternate screen into the screen rather than the pane.

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This commit is contained in:
nicm 2020-03-31 07:00:34 +00:00
parent eedf059d00
commit 3bbd66c013
7 changed files with 127 additions and 107 deletions
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2
cmd-capture-pane.c
View File

@ -118,7 +118,7 @@ cmd_capture_pane_history(struct args *args, struct cmdq_item *item,
sx = screen_size_x(&wp->base);
if (args_has(args, 'a')) {
gd = wp->saved_grid;
gd = wp->base.saved_grid;
if (gd == NULL) {
if (!args_has(args, 'q')) {
cmdq_error(item, "no alternate screen");

8
format.c
View File

@ -2729,9 +2729,11 @@ format_defaults_pane(struct format_tree *ft, struct window_pane *wp)
format_add(ft, "scroll_region_upper", "%u", wp->base.rupper);
format_add(ft, "scroll_region_lower", "%u", wp->base.rlower);
format_add(ft, "alternate_on", "%d", wp->saved_grid ? 1 : 0);
format_add(ft, "alternate_saved_x", "%u", wp->saved_cx);
format_add(ft, "alternate_saved_y", "%u", wp->saved_cy);
format_add(ft, "alternate_on", "%d", wp->base.saved_grid != NULL);
if (wp->base.saved_cx != UINT_MAX)
format_add(ft, "alternate_saved_x", "%u", wp->base.saved_cx);
if (wp->base.saved_cy != UINT_MAX)
format_add(ft, "alternate_saved_y", "%u", wp->base.saved_cy);
format_add(ft, "cursor_flag", "%d",
!!(wp->base.mode & MODE_CURSOR));

34
input.c
View File

@ -75,6 +75,7 @@ struct input_param {
/* Input parser context. */
struct input_ctx {
struct window_pane *wp;
struct bufferevent *event;
struct screen_write_ctx ctx;
struct input_cell cell;
@ -788,12 +789,13 @@ input_restore_state(struct input_ctx *ictx)
/* Initialise input parser. */
struct input_ctx *
input_init(struct window_pane *wp)
input_init(struct window_pane *wp, struct bufferevent *bev)
{
struct input_ctx *ictx;
ictx = xcalloc(1, sizeof *ictx);
ictx->wp = wp;
ictx->event = bev;
ictx->input_space = INPUT_BUF_START;
ictx->input_buf = xmalloc(INPUT_BUF_START);
@ -1058,18 +1060,15 @@ input_get(struct input_ctx *ictx, u_int validx, int minval, int defval)
static void
input_reply(struct input_ctx *ictx, const char *fmt, ...)
{
struct window_pane *wp = ictx->wp;
struct bufferevent *bev = ictx->event;
va_list ap;
char *reply;
if (wp == NULL)
return;
va_start(ap, fmt);
xvasprintf(&reply, fmt, ap);
va_end(ap);
bufferevent_write(wp->event, reply, strlen(reply));
bufferevent_write(bev, reply, strlen(reply));
free(reply);
}
@ -1680,10 +1679,14 @@ input_csi_dispatch_rm_private(struct input_ctx *ictx)
case 1047:
if (wp != NULL)
window_pane_alternate_off(wp, gc, 0);
else
screen_alternate_off(sctx->s, gc, 0);
break;
case 1049:
if (wp != NULL)
window_pane_alternate_off(wp, gc, 1);
else
screen_alternate_off(sctx->s, gc, 1);
break;
case 2004:
screen_write_mode_clear(sctx, MODE_BRACKETPASTE);
@ -1781,10 +1784,14 @@ input_csi_dispatch_sm_private(struct input_ctx *ictx)
case 1047:
if (wp != NULL)
window_pane_alternate_on(wp, gc, 0);
else
screen_alternate_on(sctx->s, gc, 0);
break;
case 1049:
if (wp != NULL)
window_pane_alternate_on(wp, gc, 1);
else
screen_alternate_on(sctx->s, gc, 1);
break;
case 2004:
screen_write_mode_set(sctx, MODE_BRACKETPASTE);
@ -1801,7 +1808,9 @@ static void
input_csi_dispatch_winops(struct input_ctx *ictx)
{
struct screen_write_ctx *sctx = &ictx->ctx;
struct screen *s = sctx->s;
struct window_pane *wp = ictx->wp;
u_int x = screen_size_x(s), y = screen_size_y(s);
int n, m;
m = 0;
@ -1858,10 +1867,7 @@ input_csi_dispatch_winops(struct input_ctx *ictx)
}
break;
case 18:
if (wp != NULL) {
input_reply(ictx, "\033[8;%u;%ut", wp->sy,
wp->sx);
}
input_reply(ictx, "\033[8;%u;%ut", x, y);
break;
default:
log_debug("%s: unknown '%c'", __func__, ictx->ch);
@ -2565,13 +2571,13 @@ input_osc_52(struct input_ctx *ictx, const char *p)
outlen = 0;
out = NULL;
}
bufferevent_write(wp->event, "\033]52;;", 6);
bufferevent_write(ictx->event, "\033]52;;", 6);
if (outlen != 0)
bufferevent_write(wp->event, out, outlen);
bufferevent_write(ictx->event, out, outlen);
if (ictx->input_end == INPUT_END_BEL)
bufferevent_write(wp->event, "\007", 1);
bufferevent_write(ictx->event, "\007", 1);
else
bufferevent_write(wp->event, "\033\\", 2);
bufferevent_write(ictx->event, "\033\\", 2);
free(out);
return;
}

84
screen.c
View File

@ -76,6 +76,8 @@ void
screen_init(struct screen *s, u_int sx, u_int sy, u_int hlimit)
{
s->grid = grid_create(sx, sy, hlimit);
s->saved_grid = NULL;
s->title = xstrdup("");
s->titles = NULL;
@ -99,6 +101,11 @@ screen_reinit(struct screen *s)
s->mode = MODE_CURSOR | MODE_WRAP;
if (s->saved_grid != NULL)
screen_alternate_off(s, NULL, 0);
s->saved_cx = UINT_MAX;
s->saved_cy = UINT_MAX;
screen_reset_tabs(s);
grid_clear_lines(s->grid, s->grid->hsize, s->grid->sy, 8);
@ -116,6 +123,8 @@ screen_free(struct screen *s)
free(s->title);
free(s->ccolour);
if (s->saved_grid != NULL)
grid_destroy(s->saved_grid);
grid_destroy(s->grid);
screen_free_titles(s);
@ -502,3 +511,78 @@ screen_reflow(struct screen *s, u_int new_x)
log_debug("%s: reflow took %llu.%06u seconds", __func__,
(unsigned long long)tv.tv_sec, (u_int)tv.tv_usec);
}
/*
* Enter alternative screen mode. A copy of the visible screen is saved and the
* history is not updated.
*/
void
screen_alternate_on(struct screen *s, struct grid_cell *gc, int cursor)
{
u_int sx, sy;
if (s->saved_grid != NULL)
return;
sx = screen_size_x(s);
sy = screen_size_y(s);
s->saved_grid = grid_create(sx, sy, 0);
grid_duplicate_lines(s->saved_grid, 0, s->grid, screen_hsize(s), sy);
if (cursor) {
s->saved_cx = s->cx;
s->saved_cy = s->cy;
}
memcpy(&s->saved_cell, gc, sizeof s->saved_cell);
grid_view_clear(s->grid, 0, 0, sx, sy, 8);
s->grid->flags &= ~GRID_HISTORY;
}
/* Exit alternate screen mode and restore the copied grid. */
void
screen_alternate_off(struct screen *s, struct grid_cell *gc, int cursor)
{
u_int sx, sy;
/*
* Restore the cursor position and cell. This happens even if not
* currently in the alternate screen.
*/
if (cursor && s->saved_cx != UINT_MAX && s->saved_cy != UINT_MAX) {
s->cx = s->saved_cx;
if (s->cx > screen_size_x(s) - 1)
s->cx = screen_size_x(s) - 1;
s->cy = s->saved_cy;
if (s->cy > screen_size_y(s) - 1)
s->cy = screen_size_y(s) - 1;
if (gc != NULL)
memcpy(gc, &s->saved_cell, sizeof *gc);
}
if (s->saved_grid == NULL)
return;
sx = screen_size_x(s);
sy = screen_size_y(s);
/*
* If the current size is bigger, temporarily resize to the old size
* before copying back.
*/
if (sy > s->saved_grid->sy)
screen_resize(s, sx, s->saved_grid->sy, 1);
/* Restore the saved grid. */
grid_duplicate_lines(s->grid, screen_hsize(s), s->saved_grid, 0, sy);
/*
* Turn history back on (so resize can use it) and then resize back to
* the current size.
*/
s->grid->flags |= GRID_HISTORY;
if (sy > s->saved_grid->sy || sx != s->saved_grid->sx)
screen_resize(s, sx, sy, 1);
grid_destroy(s->saved_grid);
s->saved_grid = NULL;
}

2
server-client.c
View File

@ -1400,7 +1400,7 @@ server_client_resize_event(__unused int fd, __unused short events, void *data)
log_debug("%s: %%%u timer fired (was%s resized)", __func__, wp->id,
(wp->flags & PANE_RESIZED) ? "" : " not");
if (wp->saved_grid == NULL && (wp->flags & PANE_RESIZED)) {
if (wp->base.saved_grid == NULL && (wp->flags & PANE_RESIZED)) {
log_debug("%s: %%%u deferring timer", __func__, wp->id);
server_client_start_resize_timer(wp);
} else if (!server_client_resize_force(wp)) {

18
tmux.h
View File

@ -754,8 +754,12 @@ struct screen {
int mode;
bitstr_t *tabs;
u_int saved_cx;
u_int saved_cy;
struct grid *saved_grid;
struct grid_cell saved_cell;
bitstr_t *tabs;
struct screen_sel *sel;
};
@ -917,12 +921,6 @@ struct window_pane {
struct screen status_screen;
size_t status_size;
/* Saved in alternative screen mode. */
u_int saved_cx;
u_int saved_cy;
struct grid *saved_grid;
struct grid_cell saved_cell;
TAILQ_HEAD (, window_mode_entry) modes;
struct event modetimer;
time_t modelast;
@ -2296,7 +2294,7 @@ void recalculate_size(struct window *);
void recalculate_sizes(void);
/* input.c */
struct input_ctx *input_init(struct window_pane *);
struct input_ctx *input_init(struct window_pane *, struct bufferevent *);
void input_free(struct input_ctx *);
void input_reset(struct input_ctx *, int);
struct evbuffer *input_pending(struct input_ctx *);
@ -2334,6 +2332,7 @@ struct grid *grid_create(u_int, u_int, u_int);
void grid_destroy(struct grid *);
int grid_compare(struct grid *, struct grid *);
void grid_collect_history(struct grid *);
void grid_remove_history(struct grid *, u_int );
void grid_scroll_history(struct grid *, u_int);
void grid_scroll_history_region(struct grid *, u_int, u_int, u_int);
void grid_clear_history(struct grid *);
@ -2458,6 +2457,9 @@ void screen_hide_selection(struct screen *);
int screen_check_selection(struct screen *, u_int, u_int);
void screen_select_cell(struct screen *, struct grid_cell *,
const struct grid_cell *);
void screen_alternate_on(struct screen *, struct grid_cell *, int);
void screen_alternate_off(struct screen *, struct grid_cell *, int);
/* window.c */
extern struct windows windows;

86
window.c
View File

@ -879,10 +879,6 @@ window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
wp->pipe_off = 0;
wp->pipe_event = NULL;
wp->saved_grid = NULL;
wp->saved_cx = UINT_MAX;
wp->saved_cy = UINT_MAX;
screen_init(&wp->base, sx, sy, hlimit);
wp->screen = &wp->base;
@ -891,8 +887,6 @@ window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
if (gethostname(host, sizeof host) == 0)
screen_set_title(&wp->base, host);
wp->ictx = input_init(wp);
return (wp);
}
@ -906,14 +900,12 @@ window_pane_destroy(struct window_pane *wp)
bufferevent_free(wp->event);
close(wp->fd);
}
input_free(wp->ictx);
if (wp->ictx != NULL)
input_free(wp->ictx);
screen_free(&wp->status_screen);
screen_free(&wp->base);
if (wp->saved_grid != NULL)
grid_destroy(wp->saved_grid);
if (wp->pipe_fd != -1) {
bufferevent_free(wp->pipe_event);
@ -974,6 +966,7 @@ window_pane_set_event(struct window_pane *wp)
wp->event = bufferevent_new(wp->fd, window_pane_read_callback,
NULL, window_pane_error_callback, wp);
wp->ictx = input_init(wp, wp->event);
bufferevent_setwatermark(wp->event, EV_READ, 0, READ_SIZE);
bufferevent_enable(wp->event, EV_READ|EV_WRITE);
@ -990,7 +983,7 @@ window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
wp->sy = sy;
log_debug("%s: %%%u resize %ux%u", __func__, wp->id, sx, sy);
screen_resize(&wp->base, sx, sy, wp->saved_grid == NULL);
screen_resize(&wp->base, sx, sy, wp->base.saved_grid == NULL);
wme = TAILQ_FIRST(&wp->modes);
if (wme != NULL && wme->mode->resize != NULL)
@ -999,90 +992,23 @@ window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
wp->flags |= (PANE_RESIZE|PANE_RESIZED);
}
/*
* Enter alternative screen mode. A copy of the visible screen is saved and the
* history is not updated
*/
void
window_pane_alternate_on(struct window_pane *wp, struct grid_cell *gc,
int cursor)
{
struct screen *s = &wp->base;
u_int sx, sy;
if (wp->saved_grid != NULL)
return;
if (!options_get_number(wp->options, "alternate-screen"))
return;
sx = screen_size_x(s);
sy = screen_size_y(s);
wp->saved_grid = grid_create(sx, sy, 0);
grid_duplicate_lines(wp->saved_grid, 0, s->grid, screen_hsize(s), sy);
if (cursor) {
wp->saved_cx = s->cx;
wp->saved_cy = s->cy;
}
memcpy(&wp->saved_cell, gc, sizeof wp->saved_cell);
grid_view_clear(s->grid, 0, 0, sx, sy, 8);
wp->base.grid->flags &= ~GRID_HISTORY;
screen_alternate_on(&wp->base, gc, cursor);
wp->flags |= PANE_REDRAW;
}
/* Exit alternate screen mode and restore the copied grid. */
void
window_pane_alternate_off(struct window_pane *wp, struct grid_cell *gc,
int cursor)
{
struct screen *s = &wp->base;
u_int sx, sy;
if (!options_get_number(wp->options, "alternate-screen"))
return;
/*
* Restore the cursor position and cell. This happens even if not
* currently in the alternate screen.
*/
if (cursor && wp->saved_cx != UINT_MAX && wp->saved_cy != UINT_MAX) {
s->cx = wp->saved_cx;
if (s->cx > screen_size_x(s) - 1)
s->cx = screen_size_x(s) - 1;
s->cy = wp->saved_cy;
if (s->cy > screen_size_y(s) - 1)
s->cy = screen_size_y(s) - 1;
memcpy(gc, &wp->saved_cell, sizeof *gc);
}
if (wp->saved_grid == NULL)
return;
sx = screen_size_x(s);
sy = screen_size_y(s);
/*
* If the current size is bigger, temporarily resize to the old size
* before copying back.
*/
if (sy > wp->saved_grid->sy)
screen_resize(s, sx, wp->saved_grid->sy, 1);
/* Restore the saved grid. */
grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
/*
* Turn history back on (so resize can use it) and then resize back to
* the current size.
*/
wp->base.grid->flags |= GRID_HISTORY;
if (sy > wp->saved_grid->sy || sx != wp->saved_grid->sx)
screen_resize(s, sx, sy, 1);
grid_destroy(wp->saved_grid);
wp->saved_grid = NULL;
screen_alternate_off(&wp->base, gc, cursor);
wp->flags |= PANE_REDRAW;
}