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window.c
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/* $OpenBSD$ */
/*
* Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com>
*
* Permission to use, copy, modify, and distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
* WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
* IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
* OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
*/
#include <sys/types.h>
#include <sys/ioctl.h>
#include <ctype.h>
#include <errno.h>
#include <fcntl.h>
#include <fnmatch.h>
#include <regex.h>
#include <signal.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "tmux.h"
/*
* Each window is attached to a number of panes, each of which is a pty. This
* file contains code to handle them.
*
* A pane has two buffers attached, these are filled and emptied by the main
* server poll loop. Output data is received from pty's in screen format,
* translated and returned as a series of escape sequences and strings via
* input_parse (in input.c). Input data is received as key codes and written
* directly via input_key.
*
* Each pane also has a "virtual" screen (screen.c) which contains the current
* state and is redisplayed when the window is reattached to a client.
*
* Windows are stored directly on a global array and wrapped in any number of
* winlink structs to be linked onto local session RB trees. A reference count
* is maintained and a window removed from the global list and destroyed when
* it reaches zero.
*/
/* Global window list. */
struct windows windows;
/* Global panes tree. */
struct window_pane_tree all_window_panes;
static u_int next_window_pane_id;
static u_int next_window_id;
static u_int next_active_point;
struct window_pane_input_data {
struct cmdq_item *item;
u_int wp;
struct client_file *file;
};
static struct window_pane *window_pane_create(struct window *, u_int, u_int,
u_int);
static void window_pane_destroy(struct window_pane *);
RB_GENERATE(windows, window, entry, window_cmp);
RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
RB_GENERATE(window_pane_tree, window_pane, tree_entry, window_pane_cmp);
int
window_cmp(struct window *w1, struct window *w2)
{
return (w1->id - w2->id);
}
int
winlink_cmp(struct winlink *wl1, struct winlink *wl2)
{
return (wl1->idx - wl2->idx);
}
int
window_pane_cmp(struct window_pane *wp1, struct window_pane *wp2)
{
return (wp1->id - wp2->id);
}
struct winlink *
winlink_find_by_window(struct winlinks *wwl, struct window *w)
{
struct winlink *wl;
RB_FOREACH(wl, winlinks, wwl) {
if (wl->window == w)
return (wl);
}
return (NULL);
}
struct winlink *
winlink_find_by_index(struct winlinks *wwl, int idx)
{
struct winlink wl;
if (idx < 0)
fatalx("bad index");
wl.idx = idx;
return (RB_FIND(winlinks, wwl, &wl));
}
struct winlink *
winlink_find_by_window_id(struct winlinks *wwl, u_int id)
{
struct winlink *wl;
RB_FOREACH(wl, winlinks, wwl) {
if (wl->window->id == id)
return (wl);
}
return (NULL);
}
static int
winlink_next_index(struct winlinks *wwl, int idx)
{
int i;
i = idx;
do {
if (winlink_find_by_index(wwl, i) == NULL)
return (i);
if (i == INT_MAX)
i = 0;
else
i++;
} while (i != idx);
return (-1);
}
u_int
winlink_count(struct winlinks *wwl)
{
struct winlink *wl;
u_int n;
n = 0;
RB_FOREACH(wl, winlinks, wwl)
n++;
return (n);
}
struct winlink *
winlink_add(struct winlinks *wwl, int idx)
{
struct winlink *wl;
if (idx < 0) {
if ((idx = winlink_next_index(wwl, -idx - 1)) == -1)
return (NULL);
} else if (winlink_find_by_index(wwl, idx) != NULL)
return (NULL);
wl = xcalloc(1, sizeof *wl);
wl->idx = idx;
RB_INSERT(winlinks, wwl, wl);
return (wl);
}
void
winlink_set_window(struct winlink *wl, struct window *w)
{
if (wl->window != NULL) {
TAILQ_REMOVE(&wl->window->winlinks, wl, wentry);
window_remove_ref(wl->window, __func__);
}
TAILQ_INSERT_TAIL(&w->winlinks, wl, wentry);
wl->window = w;
window_add_ref(w, __func__);
}
void
winlink_remove(struct winlinks *wwl, struct winlink *wl)
{
struct window *w = wl->window;
if (w != NULL) {
TAILQ_REMOVE(&w->winlinks, wl, wentry);
window_remove_ref(w, __func__);
}
RB_REMOVE(winlinks, wwl, wl);
free(wl);
}
struct winlink *
winlink_next(struct winlink *wl)
{
return (RB_NEXT(winlinks, wwl, wl));
}
struct winlink *
winlink_previous(struct winlink *wl)
{
return (RB_PREV(winlinks, wwl, wl));
}
struct winlink *
winlink_next_by_number(struct winlink *wl, struct session *s, int n)
{
for (; n > 0; n--) {
if ((wl = RB_NEXT(winlinks, wwl, wl)) == NULL)
wl = RB_MIN(winlinks, &s->windows);
}
return (wl);
}
struct winlink *
winlink_previous_by_number(struct winlink *wl, struct session *s, int n)
{
for (; n > 0; n--) {
if ((wl = RB_PREV(winlinks, wwl, wl)) == NULL)
wl = RB_MAX(winlinks, &s->windows);
}
return (wl);
}
void
winlink_stack_push(struct winlink_stack *stack, struct winlink *wl)
{
if (wl == NULL)
return;
winlink_stack_remove(stack, wl);
TAILQ_INSERT_HEAD(stack, wl, sentry);
wl->flags |= WINLINK_VISITED;
}
void
winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
{
if (wl != NULL && (wl->flags & WINLINK_VISITED)) {
TAILQ_REMOVE(stack, wl, sentry);
wl->flags &= ~WINLINK_VISITED;
}
}
struct window *
window_find_by_id_str(const char *s)
{
const char *errstr;
u_int id;
if (*s != '@')
return (NULL);
id = strtonum(s + 1, 0, UINT_MAX, &errstr);
if (errstr != NULL)
return (NULL);
return (window_find_by_id(id));
}
struct window *
window_find_by_id(u_int id)
{
struct window w;
w.id = id;
return (RB_FIND(windows, &windows, &w));
}
void
window_update_activity(struct window *w)
{
gettimeofday(&w->activity_time, NULL);
alerts_queue(w, WINDOW_ACTIVITY);
}
struct window *
window_create(u_int sx, u_int sy, u_int xpixel, u_int ypixel)
{
struct window *w;
if (xpixel == 0)
xpixel = DEFAULT_XPIXEL;
if (ypixel == 0)
ypixel = DEFAULT_YPIXEL;
w = xcalloc(1, sizeof *w);
w->name = xstrdup("");
w->flags = 0;
TAILQ_INIT(&w->panes);
TAILQ_INIT(&w->last_panes);
w->active = NULL;
w->lastlayout = -1;
w->layout_root = NULL;
w->sx = sx;
w->sy = sy;
w->manual_sx = sx;
w->manual_sy = sy;
w->xpixel = xpixel;
w->ypixel = ypixel;
w->options = options_create(global_w_options);
w->references = 0;
TAILQ_INIT(&w->winlinks);
w->id = next_window_id++;
RB_INSERT(windows, &windows, w);
window_set_fill_character(w);
window_update_activity(w);
log_debug("%s: @%u create %ux%u (%ux%u)", __func__, w->id, sx, sy,
w->xpixel, w->ypixel);
return (w);
}
static void
window_destroy(struct window *w)
{
log_debug("window @%u destroyed (%d references)", w->id, w->references);
window_unzoom(w, 0);
RB_REMOVE(windows, &windows, w);
if (w->layout_root != NULL)
layout_free_cell(w->layout_root);
if (w->saved_layout_root != NULL)
layout_free_cell(w->saved_layout_root);
free(w->old_layout);
window_destroy_panes(w);
if (event_initialized(&w->name_event))
evtimer_del(&w->name_event);
if (event_initialized(&w->alerts_timer))
evtimer_del(&w->alerts_timer);
if (event_initialized(&w->offset_timer))
event_del(&w->offset_timer);
options_free(w->options);
free(w->fill_character);
free(w->name);
free(w);
}
int
window_pane_destroy_ready(struct window_pane *wp)
{
int n;
if (wp->pipe_fd != -1) {
if (EVBUFFER_LENGTH(wp->pipe_event->output) != 0)
return (0);
if (ioctl(wp->fd, FIONREAD, &n) != -1 && n > 0)
return (0);
}
if (~wp->flags & PANE_EXITED)
return (0);
return (1);
}
void
window_add_ref(struct window *w, const char *from)
{
w->references++;
log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
}
void
window_remove_ref(struct window *w, const char *from)
{
w->references--;
log_debug("%s: @%u %s, now %d", __func__, w->id, from, w->references);
if (w->references == 0)
window_destroy(w);
}
void
window_set_name(struct window *w, const char *new_name)
{
free(w->name);
utf8_stravis(&w->name, new_name, VIS_OCTAL|VIS_CSTYLE|VIS_TAB|VIS_NL);
notify_window("window-renamed", w);
}
void
window_resize(struct window *w, u_int sx, u_int sy, int xpixel, int ypixel)
{
if (xpixel == 0)
xpixel = DEFAULT_XPIXEL;
if (ypixel == 0)
ypixel = DEFAULT_YPIXEL;
log_debug("%s: @%u resize %ux%u (%ux%u)", __func__, w->id, sx, sy,
xpixel == -1 ? w->xpixel : (u_int)xpixel,
ypixel == -1 ? w->ypixel : (u_int)ypixel);
w->sx = sx;
w->sy = sy;
if (xpixel != -1)
w->xpixel = xpixel;
if (ypixel != -1)
w->ypixel = ypixel;
}
void
window_pane_send_resize(struct window_pane *wp, u_int sx, u_int sy)
{
struct window *w = wp->window;
struct winsize ws;
if (wp->fd == -1)
return;
log_debug("%s: %%%u resize to %u,%u", __func__, wp->id, sx, sy);
memset(&ws, 0, sizeof ws);
ws.ws_col = sx;
ws.ws_row = sy;
ws.ws_xpixel = w->xpixel * ws.ws_col;
ws.ws_ypixel = w->ypixel * ws.ws_row;
if (ioctl(wp->fd, TIOCSWINSZ, &ws) == -1)
#ifdef __sun
/*
* Some versions of Solaris apparently can return an error when
* resizing; don't know why this happens, can't reproduce on
* other platforms and ignoring it doesn't seem to cause any
* issues.
*/
if (errno != EINVAL && errno != ENXIO)
#endif
fatal("ioctl failed");
}
int
window_has_pane(struct window *w, struct window_pane *wp)
{
struct window_pane *wp1;
TAILQ_FOREACH(wp1, &w->panes, entry) {
if (wp1 == wp)
return (1);
}
return (0);
}
void
window_update_focus(struct window *w)
{
if (w != NULL) {
log_debug("%s: @%u", __func__, w->id);
window_pane_update_focus(w->active);
}
}
void
window_pane_update_focus(struct window_pane *wp)
{
struct client *c;
int focused = 0;
if (wp != NULL && (~wp->flags & PANE_EXITED)) {
if (wp != wp->window->active)
focused = 0;
else {
TAILQ_FOREACH(c, &clients, entry) {
if (c->session != NULL &&
c->session->attached != 0 &&
(c->flags & CLIENT_FOCUSED) &&
c->session->curw->window == wp->window &&
c->overlay_draw == NULL) {
focused = 1;
break;
}
}
}
if (!focused && (wp->flags & PANE_FOCUSED)) {
log_debug("%s: %%%u focus out", __func__, wp->id);
if (wp->base.mode & MODE_FOCUSON)
bufferevent_write(wp->event, "\033[O", 3);
notify_pane("pane-focus-out", wp);
wp->flags &= ~PANE_FOCUSED;
} else if (focused && (~wp->flags & PANE_FOCUSED)) {
log_debug("%s: %%%u focus in", __func__, wp->id);
if (wp->base.mode & MODE_FOCUSON)
bufferevent_write(wp->event, "\033[I", 3);
notify_pane("pane-focus-in", wp);
wp->flags |= PANE_FOCUSED;
} else
log_debug("%s: %%%u focus unchanged", __func__, wp->id);
}
}
int
window_set_active_pane(struct window *w, struct window_pane *wp, int notify)
{
struct window_pane *lastwp;
log_debug("%s: pane %%%u", __func__, wp->id);
if (wp == w->active)
return (0);
lastwp = w->active;
window_pane_stack_remove(&w->last_panes, wp);
window_pane_stack_push(&w->last_panes, lastwp);
w->active = wp;
w->active->active_point = next_active_point++;
w->active->flags |= PANE_CHANGED;
if (options_get_number(global_options, "focus-events")) {
window_pane_update_focus(lastwp);
window_pane_update_focus(w->active);
}
tty_update_window_offset(w);
if (notify)
notify_window("window-pane-changed", w);
return (1);
}
static int
window_pane_get_palette(struct window_pane *wp, int c)
{
if (wp == NULL)
return (-1);
return (colour_palette_get(&wp->palette, c));
}
void
window_redraw_active_switch(struct window *w, struct window_pane *wp)
{
struct grid_cell *gc1, *gc2;
int c1, c2;
if (wp == w->active)
return;
for (;;) {
/*
* If the active and inactive styles or palettes are different,
* need to redraw the panes.
*/
gc1 = &wp->cached_gc;
gc2 = &wp->cached_active_gc;
if (!grid_cells_look_equal(gc1, gc2))
wp->flags |= PANE_REDRAW;
else {
c1 = window_pane_get_palette(wp, gc1->fg);
c2 = window_pane_get_palette(wp, gc2->fg);
if (c1 != c2)
wp->flags |= PANE_REDRAW;
else {
c1 = window_pane_get_palette(wp, gc1->bg);
c2 = window_pane_get_palette(wp, gc2->bg);
if (c1 != c2)
wp->flags |= PANE_REDRAW;
}
}
if (wp == w->active)
break;
wp = w->active;
}
}
struct window_pane *
window_get_active_at(struct window *w, u_int x, u_int y)
{
struct window_pane *wp;
int pane_scrollbars;
u_int sb_pos, sb_w, xoff, sx;
pane_scrollbars = options_get_number(w->options, "pane-scrollbars");
sb_pos = options_get_number(w->options, "pane-scrollbars-position");
TAILQ_FOREACH(wp, &w->panes, entry) {
if (!window_pane_visible(wp))
continue;
if (pane_scrollbars == PANE_SCROLLBARS_ALWAYS ||
(pane_scrollbars == PANE_SCROLLBARS_MODAL &&
window_pane_mode(wp) != WINDOW_PANE_NO_MODE)) {
sb_w = wp->scrollbar_style.width +
wp->scrollbar_style.pad;
} else
sb_w = 0;
if (sb_pos == PANE_SCROLLBARS_LEFT) {
xoff = wp->xoff - sb_w;
sx = wp->sx + sb_w;
} else { /* sb_pos == PANE_SCROLLBARS_RIGHT */
xoff = wp->xoff;
sx = wp->sx + sb_w;
}
if (x < xoff || x > xoff + sx)
continue;
if (y < wp->yoff || y > wp->yoff + wp->sy)
continue;
return (wp);
}
return (NULL);
}
struct window_pane *
window_find_string(struct window *w, const char *s)
{
u_int x, y, top = 0, bottom = w->sy - 1;
int status;
x = w->sx / 2;
y = w->sy / 2;
status = options_get_number(w->options, "pane-border-status");
if (status == PANE_STATUS_TOP)
top++;
else if (status == PANE_STATUS_BOTTOM)
bottom--;
if (strcasecmp(s, "top") == 0)
y = top;
else if (strcasecmp(s, "bottom") == 0)
y = bottom;
else if (strcasecmp(s, "left") == 0)
x = 0;
else if (strcasecmp(s, "right") == 0)
x = w->sx - 1;
else if (strcasecmp(s, "top-left") == 0) {
x = 0;
y = top;
} else if (strcasecmp(s, "top-right") == 0) {
x = w->sx - 1;
y = top;
} else if (strcasecmp(s, "bottom-left") == 0) {
x = 0;
y = bottom;
} else if (strcasecmp(s, "bottom-right") == 0) {
x = w->sx - 1;
y = bottom;
} else
return (NULL);
return (window_get_active_at(w, x, y));
}
int
window_zoom(struct window_pane *wp)
{
struct window *w = wp->window;
struct window_pane *wp1;
if (w->flags & WINDOW_ZOOMED)
return (-1);
if (window_count_panes(w) == 1)
return (-1);
if (w->active != wp)
window_set_active_pane(w, wp, 1);
TAILQ_FOREACH(wp1, &w->panes, entry) {
wp1->saved_layout_cell = wp1->layout_cell;
wp1->layout_cell = NULL;
}
w->saved_layout_root = w->layout_root;
layout_init(w, wp);
w->flags |= WINDOW_ZOOMED;
notify_window("window-layout-changed", w);
return (0);
}
int
window_unzoom(struct window *w, int notify)
{
struct window_pane *wp;
if (!(w->flags & WINDOW_ZOOMED))
return (-1);
w->flags &= ~WINDOW_ZOOMED;
layout_free(w);
w->layout_root = w->saved_layout_root;
w->saved_layout_root = NULL;
TAILQ_FOREACH(wp, &w->panes, entry) {
wp->layout_cell = wp->saved_layout_cell;
wp->saved_layout_cell = NULL;
}
layout_fix_panes(w, NULL);
if (notify)
notify_window("window-layout-changed", w);
return (0);
}
int
window_push_zoom(struct window *w, int always, int flag)
{
log_debug("%s: @%u %d", __func__, w->id,
flag && (w->flags & WINDOW_ZOOMED));
if (flag && (always || (w->flags & WINDOW_ZOOMED)))
w->flags |= WINDOW_WASZOOMED;
else
w->flags &= ~WINDOW_WASZOOMED;
return (window_unzoom(w, 1) == 0);
}
int
window_pop_zoom(struct window *w)
{
log_debug("%s: @%u %d", __func__, w->id,
!!(w->flags & WINDOW_WASZOOMED));
if (w->flags & WINDOW_WASZOOMED)
return (window_zoom(w->active) == 0);
return (0);
}
struct window_pane *
window_add_pane(struct window *w, struct window_pane *other, u_int hlimit,
int flags)
{
struct window_pane *wp;
if (other == NULL)
other = w->active;
wp = window_pane_create(w, w->sx, w->sy, hlimit);
if (TAILQ_EMPTY(&w->panes)) {
log_debug("%s: @%u at start", __func__, w->id);
TAILQ_INSERT_HEAD(&w->panes, wp, entry);
} else if (flags & SPAWN_BEFORE) {
log_debug("%s: @%u before %%%u", __func__, w->id, wp->id);
if (flags & SPAWN_FULLSIZE)
TAILQ_INSERT_HEAD(&w->panes, wp, entry);
else
TAILQ_INSERT_BEFORE(other, wp, entry);
} else {
log_debug("%s: @%u after %%%u", __func__, w->id, wp->id);
if (flags & SPAWN_FULLSIZE)
TAILQ_INSERT_TAIL(&w->panes, wp, entry);
else
TAILQ_INSERT_AFTER(&w->panes, other, wp, entry);
}
return (wp);
}
void
window_lost_pane(struct window *w, struct window_pane *wp)
{
log_debug("%s: @%u pane %%%u", __func__, w->id, wp->id);
if (wp == marked_pane.wp)
server_clear_marked();
window_pane_stack_remove(&w->last_panes, wp);
if (wp == w->active) {
w->active = TAILQ_FIRST(&w->last_panes);
if (w->active == NULL) {
w->active = TAILQ_PREV(wp, window_panes, entry);
if (w->active == NULL)
w->active = TAILQ_NEXT(wp, entry);
}
if (w->active != NULL) {
window_pane_stack_remove(&w->last_panes, w->active);
w->active->flags |= PANE_CHANGED;
notify_window("window-pane-changed", w);
window_update_focus(w);
}
}
}
void
window_remove_pane(struct window *w, struct window_pane *wp)
{
window_lost_pane(w, wp);
TAILQ_REMOVE(&w->panes, wp, entry);
window_pane_destroy(wp);
}
struct window_pane *
window_pane_at_index(struct window *w, u_int idx)
{
struct window_pane *wp;
u_int n;
n = options_get_number(w->options, "pane-base-index");
TAILQ_FOREACH(wp, &w->panes, entry) {
if (n == idx)
return (wp);
n++;
}
return (NULL);
}
struct window_pane *
window_pane_next_by_number(struct window *w, struct window_pane *wp, u_int n)
{
for (; n > 0; n--) {
if ((wp = TAILQ_NEXT(wp, entry)) == NULL)
wp = TAILQ_FIRST(&w->panes);
}
return (wp);
}
struct window_pane *
window_pane_previous_by_number(struct window *w, struct window_pane *wp,
u_int n)
{
for (; n > 0; n--) {
if ((wp = TAILQ_PREV(wp, window_panes, entry)) == NULL)
wp = TAILQ_LAST(&w->panes, window_panes);
}
return (wp);
}
int
window_pane_index(struct window_pane *wp, u_int *i)
{
struct window_pane *wq;
struct window *w = wp->window;
*i = options_get_number(w->options, "pane-base-index");
TAILQ_FOREACH(wq, &w->panes, entry) {
if (wp == wq) {
return (0);
}
(*i)++;
}
return (-1);
}
u_int
window_count_panes(struct window *w)
{
struct window_pane *wp;
u_int n;
n = 0;
TAILQ_FOREACH(wp, &w->panes, entry)
n++;
return (n);
}
void
window_destroy_panes(struct window *w)
{
struct window_pane *wp;
while (!TAILQ_EMPTY(&w->last_panes)) {
wp = TAILQ_FIRST(&w->last_panes);
window_pane_stack_remove(&w->last_panes, wp);
}
while (!TAILQ_EMPTY(&w->panes)) {
wp = TAILQ_FIRST(&w->panes);
TAILQ_REMOVE(&w->panes, wp, entry);
window_pane_destroy(wp);
}
}
const char *
window_printable_flags(struct winlink *wl, int escape)
{
struct session *s = wl->session;
static char flags[32];
int pos;
pos = 0;
if (wl->flags & WINLINK_ACTIVITY) {
flags[pos++] = '#';
if (escape)
flags[pos++] = '#';
}
if (wl->flags & WINLINK_BELL)
flags[pos++] = '!';
if (wl->flags & WINLINK_SILENCE)
flags[pos++] = '~';
if (wl == s->curw)
flags[pos++] = '*';
if (wl == TAILQ_FIRST(&s->lastw))
flags[pos++] = '-';
if (server_check_marked() && wl == marked_pane.wl)
flags[pos++] = 'M';
if (wl->window->flags & WINDOW_ZOOMED)
flags[pos++] = 'Z';
flags[pos] = '\0';
return (flags);
}
struct window_pane *
window_pane_find_by_id_str(const char *s)
{
const char *errstr;
u_int id;
if (*s != '%')
return (NULL);
id = strtonum(s + 1, 0, UINT_MAX, &errstr);
if (errstr != NULL)
return (NULL);
return (window_pane_find_by_id(id));
}
struct window_pane *
window_pane_find_by_id(u_int id)
{
struct window_pane wp;
wp.id = id;
return (RB_FIND(window_pane_tree, &all_window_panes, &wp));
}
static struct window_pane *
window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
{
struct window_pane *wp;
char host[HOST_NAME_MAX + 1];
wp = xcalloc(1, sizeof *wp);
wp->window = w;
wp->options = options_create(w->options);
wp->flags = PANE_STYLECHANGED;
wp->id = next_window_pane_id++;
RB_INSERT(window_pane_tree, &all_window_panes, wp);
wp->fd = -1;
TAILQ_INIT(&wp->modes);
TAILQ_INIT (&wp->resize_queue);
wp->sx = sx;
wp->sy = sy;
wp->pipe_fd = -1;
wp->control_bg = -1;
wp->control_fg = -1;
style_set_scrollbar_style_from_option(&wp->scrollbar_style,
wp->options);
colour_palette_init(&wp->palette);
colour_palette_from_option(&wp->palette, wp->options);
screen_init(&wp->base, sx, sy, hlimit);
wp->screen = &wp->base;
window_pane_default_cursor(wp);
screen_init(&wp->status_screen, 1, 1, 0);
if (gethostname(host, sizeof host) == 0)
screen_set_title(&wp->base, host);
return (wp);
}
static void
window_pane_destroy(struct window_pane *wp)
{
struct window_pane_resize *r;
struct window_pane_resize *r1;
window_pane_reset_mode_all(wp);
free(wp->searchstr);
if (wp->fd != -1) {
#ifdef HAVE_UTEMPTER