mirror of
https://github.com/tmux/tmux.git
synced 2024-12-13 01:48:47 +00:00
492e3aa437
Move all calls to fcntl(...O_NONBLOCK) into a function and clear the flag on the stdio file descriptors before closing them (fixes things like "tmux ls && cat").
1010 lines
21 KiB
C
1010 lines
21 KiB
C
/* $Id: window.c,v 1.144 2011-01-21 23:44:13 tcunha Exp $ */
|
|
|
|
/*
|
|
* Copyright (c) 2007 Nicholas Marriott <nicm@users.sourceforge.net>
|
|
*
|
|
* 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 <errno.h>
|
|
#include <fcntl.h>
|
|
#include <fnmatch.h>
|
|
#include <pwd.h>
|
|
#include <signal.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
#include <termios.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;
|
|
|
|
void window_pane_read_callback(struct bufferevent *, void *);
|
|
void window_pane_error_callback(struct bufferevent *, short, void *);
|
|
|
|
RB_GENERATE(winlinks, winlink, entry, winlink_cmp);
|
|
|
|
int
|
|
winlink_cmp(struct winlink *wl1, struct winlink *wl2)
|
|
{
|
|
return (wl1->idx - wl2->idx);
|
|
}
|
|
|
|
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));
|
|
}
|
|
|
|
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, struct window *w, 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;
|
|
wl->window = w;
|
|
RB_INSERT(winlinks, wwl, wl);
|
|
|
|
w->references++;
|
|
|
|
return (wl);
|
|
}
|
|
|
|
void
|
|
winlink_remove(struct winlinks *wwl, struct winlink *wl)
|
|
{
|
|
struct window *w = wl->window;
|
|
|
|
RB_REMOVE(winlinks, wwl, wl);
|
|
if (wl->status_text != NULL)
|
|
xfree(wl->status_text);
|
|
xfree(wl);
|
|
|
|
if (w->references == 0)
|
|
fatal("bad reference count");
|
|
w->references--;
|
|
if (w->references == 0)
|
|
window_destroy(w);
|
|
}
|
|
|
|
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);
|
|
}
|
|
|
|
void
|
|
winlink_stack_remove(struct winlink_stack *stack, struct winlink *wl)
|
|
{
|
|
struct winlink *wl2;
|
|
|
|
if (wl == NULL)
|
|
return;
|
|
|
|
TAILQ_FOREACH(wl2, stack, sentry) {
|
|
if (wl2 == wl) {
|
|
TAILQ_REMOVE(stack, wl, sentry);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
window_index(struct window *s, u_int *i)
|
|
{
|
|
for (*i = 0; *i < ARRAY_LENGTH(&windows); (*i)++) {
|
|
if (s == ARRAY_ITEM(&windows, *i))
|
|
return (0);
|
|
}
|
|
return (-1);
|
|
}
|
|
|
|
struct window *
|
|
window_create1(u_int sx, u_int sy)
|
|
{
|
|
struct window *w;
|
|
u_int i;
|
|
|
|
w = xcalloc(1, sizeof *w);
|
|
w->name = NULL;
|
|
w->flags = 0;
|
|
|
|
TAILQ_INIT(&w->panes);
|
|
w->active = NULL;
|
|
|
|
w->lastlayout = -1;
|
|
w->layout_root = NULL;
|
|
|
|
w->sx = sx;
|
|
w->sy = sy;
|
|
|
|
queue_window_name(w);
|
|
|
|
options_init(&w->options, &global_w_options);
|
|
|
|
for (i = 0; i < ARRAY_LENGTH(&windows); i++) {
|
|
if (ARRAY_ITEM(&windows, i) == NULL) {
|
|
ARRAY_SET(&windows, i, w);
|
|
break;
|
|
}
|
|
}
|
|
if (i == ARRAY_LENGTH(&windows))
|
|
ARRAY_ADD(&windows, w);
|
|
w->references = 0;
|
|
|
|
return (w);
|
|
}
|
|
|
|
struct window *
|
|
window_create(const char *name, const char *cmd, const char *shell,
|
|
const char *cwd, struct environ *env, struct termios *tio,
|
|
u_int sx, u_int sy, u_int hlimit,char **cause)
|
|
{
|
|
struct window *w;
|
|
struct window_pane *wp;
|
|
|
|
w = window_create1(sx, sy);
|
|
wp = window_add_pane(w, hlimit);
|
|
layout_init(w);
|
|
if (window_pane_spawn(wp, cmd, shell, cwd, env, tio, cause) != 0) {
|
|
window_destroy(w);
|
|
return (NULL);
|
|
}
|
|
w->active = TAILQ_FIRST(&w->panes);
|
|
if (name != NULL) {
|
|
w->name = xstrdup(name);
|
|
options_set_number(&w->options, "automatic-rename", 0);
|
|
} else
|
|
w->name = default_window_name(w);
|
|
return (w);
|
|
}
|
|
|
|
void
|
|
window_destroy(struct window *w)
|
|
{
|
|
u_int i;
|
|
|
|
if (window_index(w, &i) != 0)
|
|
fatalx("index not found");
|
|
ARRAY_SET(&windows, i, NULL);
|
|
while (!ARRAY_EMPTY(&windows) && ARRAY_LAST(&windows) == NULL)
|
|
ARRAY_TRUNC(&windows, 1);
|
|
|
|
if (w->layout_root != NULL)
|
|
layout_free(w);
|
|
|
|
evtimer_del(&w->name_timer);
|
|
|
|
options_free(&w->options);
|
|
|
|
window_destroy_panes(w);
|
|
|
|
if (w->name != NULL)
|
|
xfree(w->name);
|
|
xfree(w);
|
|
}
|
|
|
|
void
|
|
window_resize(struct window *w, u_int sx, u_int sy)
|
|
{
|
|
w->sx = sx;
|
|
w->sy = sy;
|
|
}
|
|
|
|
void
|
|
window_set_active_pane(struct window *w, struct window_pane *wp)
|
|
{
|
|
if (wp == w->active)
|
|
return;
|
|
w->last = w->active;
|
|
w->active = wp;
|
|
while (!window_pane_visible(w->active)) {
|
|
w->active = TAILQ_PREV(w->active, window_panes, entry);
|
|
if (w->active == NULL)
|
|
w->active = TAILQ_LAST(&w->panes, window_panes);
|
|
if (w->active == wp)
|
|
return;
|
|
}
|
|
}
|
|
|
|
void
|
|
window_set_active_at(struct window *w, u_int x, u_int y)
|
|
{
|
|
struct window_pane *wp;
|
|
|
|
TAILQ_FOREACH(wp, &w->panes, entry) {
|
|
if (wp == w->active || !window_pane_visible(wp))
|
|
continue;
|
|
if (x < wp->xoff || x >= wp->xoff + wp->sx)
|
|
continue;
|
|
if (y < wp->yoff || y >= wp->yoff + wp->sy)
|
|
continue;
|
|
window_set_active_pane(w, wp);
|
|
break;
|
|
}
|
|
}
|
|
|
|
struct window_pane *
|
|
window_add_pane(struct window *w, u_int hlimit)
|
|
{
|
|
struct window_pane *wp;
|
|
|
|
wp = window_pane_create(w, w->sx, w->sy, hlimit);
|
|
if (TAILQ_EMPTY(&w->panes))
|
|
TAILQ_INSERT_HEAD(&w->panes, wp, entry);
|
|
else
|
|
TAILQ_INSERT_AFTER(&w->panes, w->active, wp, entry);
|
|
return (wp);
|
|
}
|
|
|
|
void
|
|
window_remove_pane(struct window *w, struct window_pane *wp)
|
|
{
|
|
if (wp == w->active) {
|
|
w->active = w->last;
|
|
w->last = NULL;
|
|
if (w->active == NULL) {
|
|
w->active = TAILQ_PREV(wp, window_panes, entry);
|
|
if (w->active == NULL)
|
|
w->active = TAILQ_NEXT(wp, entry);
|
|
}
|
|
} else if (wp == w->last)
|
|
w->last = NULL;
|
|
|
|
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 = 0;
|
|
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);
|
|
}
|
|
|
|
u_int
|
|
window_pane_index(struct window *w, struct window_pane *wp)
|
|
{
|
|
struct window_pane *wq;
|
|
u_int n;
|
|
|
|
n = 0;
|
|
TAILQ_FOREACH(wq, &w->panes, entry) {
|
|
if (wp == wq)
|
|
break;
|
|
n++;
|
|
}
|
|
return (n);
|
|
}
|
|
|
|
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->panes)) {
|
|
wp = TAILQ_FIRST(&w->panes);
|
|
TAILQ_REMOVE(&w->panes, wp, entry);
|
|
window_pane_destroy(wp);
|
|
}
|
|
}
|
|
|
|
/* Return list of printable window flag symbols. No flags is just a space. */
|
|
char *
|
|
window_printable_flags(struct session *s, struct winlink *wl)
|
|
{
|
|
char flags[BUFSIZ];
|
|
int pos;
|
|
|
|
pos = 0;
|
|
if (wl->flags & WINLINK_ACTIVITY)
|
|
flags[pos++] = '#';
|
|
if (wl->flags & WINLINK_BELL)
|
|
flags[pos++] = '!';
|
|
if (wl->flags & WINLINK_CONTENT)
|
|
flags[pos++] = '+';
|
|
if (wl->flags & WINLINK_SILENCE)
|
|
flags[pos++] = '~';
|
|
if (wl == s->curw)
|
|
flags[pos++] = '*';
|
|
if (wl == TAILQ_FIRST(&s->lastw))
|
|
flags[pos++] = '-';
|
|
if (pos == 0)
|
|
flags[pos++] = ' ';
|
|
flags[pos] = '\0';
|
|
return (xstrdup(flags));
|
|
}
|
|
|
|
struct window_pane *
|
|
window_pane_create(struct window *w, u_int sx, u_int sy, u_int hlimit)
|
|
{
|
|
struct window_pane *wp;
|
|
|
|
wp = xcalloc(1, sizeof *wp);
|
|
wp->window = w;
|
|
|
|
wp->cmd = NULL;
|
|
wp->shell = NULL;
|
|
wp->cwd = NULL;
|
|
|
|
wp->fd = -1;
|
|
wp->event = NULL;
|
|
|
|
wp->mode = NULL;
|
|
|
|
wp->layout_cell = NULL;
|
|
|
|
wp->xoff = 0;
|
|
wp->yoff = 0;
|
|
|
|
wp->sx = sx;
|
|
wp->sy = sy;
|
|
|
|
wp->pipe_fd = -1;
|
|
wp->pipe_off = 0;
|
|
wp->pipe_event = NULL;
|
|
|
|
wp->saved_grid = NULL;
|
|
|
|
screen_init(&wp->base, sx, sy, hlimit);
|
|
wp->screen = &wp->base;
|
|
|
|
input_init(wp);
|
|
|
|
return (wp);
|
|
}
|
|
|
|
void
|
|
window_pane_destroy(struct window_pane *wp)
|
|
{
|
|
window_pane_reset_mode(wp);
|
|
|
|
if (wp->fd != -1) {
|
|
close(wp->fd);
|
|
bufferevent_free(wp->event);
|
|
}
|
|
|
|
input_free(wp);
|
|
|
|
screen_free(&wp->base);
|
|
if (wp->saved_grid != NULL)
|
|
grid_destroy(wp->saved_grid);
|
|
|
|
if (wp->pipe_fd != -1) {
|
|
close(wp->pipe_fd);
|
|
bufferevent_free(wp->pipe_event);
|
|
}
|
|
|
|
if (wp->cwd != NULL)
|
|
xfree(wp->cwd);
|
|
if (wp->shell != NULL)
|
|
xfree(wp->shell);
|
|
if (wp->cmd != NULL)
|
|
xfree(wp->cmd);
|
|
xfree(wp);
|
|
}
|
|
|
|
int
|
|
window_pane_spawn(struct window_pane *wp, const char *cmd, const char *shell,
|
|
const char *cwd, struct environ *env, struct termios *tio, char **cause)
|
|
{
|
|
struct winsize ws;
|
|
char *argv0;
|
|
const char *ptr;
|
|
struct termios tio2;
|
|
|
|
if (wp->fd != -1) {
|
|
close(wp->fd);
|
|
bufferevent_free(wp->event);
|
|
}
|
|
if (cmd != NULL) {
|
|
if (wp->cmd != NULL)
|
|
xfree(wp->cmd);
|
|
wp->cmd = xstrdup(cmd);
|
|
}
|
|
if (shell != NULL) {
|
|
if (wp->shell != NULL)
|
|
xfree(wp->shell);
|
|
wp->shell = xstrdup(shell);
|
|
}
|
|
if (cwd != NULL) {
|
|
if (wp->cwd != NULL)
|
|
xfree(wp->cwd);
|
|
wp->cwd = xstrdup(cwd);
|
|
}
|
|
|
|
memset(&ws, 0, sizeof ws);
|
|
ws.ws_col = screen_size_x(&wp->base);
|
|
ws.ws_row = screen_size_y(&wp->base);
|
|
|
|
switch (wp->pid = forkpty(&wp->fd, wp->tty, NULL, &ws)) {
|
|
case -1:
|
|
wp->fd = -1;
|
|
xasprintf(cause, "%s: %s", cmd, strerror(errno));
|
|
return (-1);
|
|
case 0:
|
|
if (chdir(wp->cwd) != 0)
|
|
chdir("/");
|
|
|
|
if (tcgetattr(STDIN_FILENO, &tio2) != 0)
|
|
fatal("tcgetattr failed");
|
|
if (tio != NULL)
|
|
memcpy(tio2.c_cc, tio->c_cc, sizeof tio2.c_cc);
|
|
tio2.c_cc[VERASE] = '\177';
|
|
if (tcsetattr(STDIN_FILENO, TCSANOW, &tio2) != 0)
|
|
fatal("tcgetattr failed");
|
|
|
|
closefrom(STDERR_FILENO + 1);
|
|
|
|
environ_push(env);
|
|
|
|
clear_signals(1);
|
|
log_close();
|
|
|
|
if (*wp->cmd != '\0') {
|
|
/* Set SHELL but only if it is currently not useful. */
|
|
shell = getenv("SHELL");
|
|
if (shell == NULL || *shell == '\0' || areshell(shell))
|
|
setenv("SHELL", wp->shell, 1);
|
|
|
|
execl(_PATH_BSHELL, "sh", "-c", wp->cmd, (char *) NULL);
|
|
fatal("execl failed");
|
|
}
|
|
|
|
/* No command; fork a login shell. */
|
|
ptr = strrchr(wp->shell, '/');
|
|
if (ptr != NULL && *(ptr + 1) != '\0')
|
|
xasprintf(&argv0, "-%s", ptr + 1);
|
|
else
|
|
xasprintf(&argv0, "-%s", wp->shell);
|
|
setenv("SHELL", wp->shell, 1);
|
|
execl(wp->shell, argv0, (char *) NULL);
|
|
fatal("execl failed");
|
|
}
|
|
|
|
setblocking(wp->fd, 0);
|
|
|
|
wp->event = bufferevent_new(wp->fd,
|
|
window_pane_read_callback, NULL, window_pane_error_callback, wp);
|
|
bufferevent_enable(wp->event, EV_READ|EV_WRITE);
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
window_pane_read_callback(unused struct bufferevent *bufev, void *data)
|
|
{
|
|
struct window_pane *wp = data;
|
|
char *new_data;
|
|
size_t new_size;
|
|
|
|
new_size = EVBUFFER_LENGTH(wp->event->input) - wp->pipe_off;
|
|
if (wp->pipe_fd != -1 && new_size > 0) {
|
|
new_data = EVBUFFER_DATA(wp->event->input);
|
|
bufferevent_write(wp->pipe_event, new_data, new_size);
|
|
}
|
|
|
|
input_parse(wp);
|
|
|
|
wp->pipe_off = EVBUFFER_LENGTH(wp->event->input);
|
|
|
|
/*
|
|
* If we get here, we're not outputting anymore, so set the silence
|
|
* flag on the window.
|
|
*/
|
|
wp->window->flags |= WINDOW_SILENCE;
|
|
if (gettimeofday(&wp->window->silence_timer, NULL) != 0)
|
|
fatal("gettimeofday failed.");
|
|
}
|
|
|
|
/* ARGSUSED */
|
|
void
|
|
window_pane_error_callback(
|
|
unused struct bufferevent *bufev, unused short what, void *data)
|
|
{
|
|
struct window_pane *wp = data;
|
|
|
|
server_destroy_pane(wp);
|
|
}
|
|
|
|
void
|
|
window_pane_resize(struct window_pane *wp, u_int sx, u_int sy)
|
|
{
|
|
struct winsize ws;
|
|
|
|
if (sx == wp->sx && sy == wp->sy)
|
|
return;
|
|
wp->sx = sx;
|
|
wp->sy = sy;
|
|
|
|
memset(&ws, 0, sizeof ws);
|
|
ws.ws_col = sx;
|
|
ws.ws_row = sy;
|
|
|
|
screen_resize(&wp->base, sx, sy);
|
|
if (wp->mode != NULL)
|
|
wp->mode->resize(wp, sx, sy);
|
|
|
|
if (wp->fd != -1 && 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)
|
|
#endif
|
|
fatal("ioctl failed");
|
|
}
|
|
|
|
/*
|
|
* 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)
|
|
{
|
|
struct screen *s = &wp->base;
|
|
u_int sx, sy;
|
|
|
|
if (wp->saved_grid != NULL)
|
|
return;
|
|
if (!options_get_number(&wp->window->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);
|
|
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);
|
|
|
|
wp->base.grid->flags &= ~GRID_HISTORY;
|
|
|
|
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)
|
|
{
|
|
struct screen *s = &wp->base;
|
|
u_int sx, sy;
|
|
|
|
if (wp->saved_grid == NULL)
|
|
return;
|
|
if (!options_get_number(&wp->window->options, "alternate-screen"))
|
|
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);
|
|
|
|
/* Restore the grid, cursor position and cell. */
|
|
grid_duplicate_lines(s->grid, screen_hsize(s), wp->saved_grid, 0, sy);
|
|
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);
|
|
|
|
/*
|
|
* 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)
|
|
screen_resize(s, sx, sy);
|
|
|
|
grid_destroy(wp->saved_grid);
|
|
wp->saved_grid = NULL;
|
|
|
|
wp->flags |= PANE_REDRAW;
|
|
}
|
|
|
|
int
|
|
window_pane_set_mode(struct window_pane *wp, const struct window_mode *mode)
|
|
{
|
|
struct screen *s;
|
|
|
|
if (wp->mode != NULL)
|
|
return (1);
|
|
wp->mode = mode;
|
|
|
|
if ((s = wp->mode->init(wp)) != NULL)
|
|
wp->screen = s;
|
|
wp->flags |= PANE_REDRAW;
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
window_pane_reset_mode(struct window_pane *wp)
|
|
{
|
|
if (wp->mode == NULL)
|
|
return;
|
|
|
|
wp->mode->free(wp);
|
|
wp->mode = NULL;
|
|
|
|
wp->screen = &wp->base;
|
|
wp->flags |= PANE_REDRAW;
|
|
}
|
|
|
|
void
|
|
window_pane_key(struct window_pane *wp, struct session *sess, int key)
|
|
{
|
|
struct window_pane *wp2;
|
|
|
|
if (!window_pane_visible(wp))
|
|
return;
|
|
|
|
if (wp->mode != NULL) {
|
|
if (wp->mode->key != NULL)
|
|
wp->mode->key(wp, sess, key);
|
|
return;
|
|
}
|
|
|
|
if (wp->fd == -1)
|
|
return;
|
|
input_key(wp, key);
|
|
if (options_get_number(&wp->window->options, "synchronize-panes")) {
|
|
TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
|
|
if (wp2 == wp || wp2->mode != NULL)
|
|
continue;
|
|
if (wp2->fd != -1 && window_pane_visible(wp2))
|
|
input_key(wp2, key);
|
|
}
|
|
}
|
|
}
|
|
|
|
void
|
|
window_pane_mouse(
|
|
struct window_pane *wp, struct session *sess, struct mouse_event *m)
|
|
{
|
|
if (!window_pane_visible(wp))
|
|
return;
|
|
|
|
if (m->x < wp->xoff || m->x >= wp->xoff + wp->sx)
|
|
return;
|
|
if (m->y < wp->yoff || m->y >= wp->yoff + wp->sy)
|
|
return;
|
|
m->x -= wp->xoff;
|
|
m->y -= wp->yoff;
|
|
|
|
if (wp->mode != NULL) {
|
|
if (wp->mode->mouse != NULL)
|
|
wp->mode->mouse(wp, sess, m);
|
|
} else if (wp->fd != -1)
|
|
input_mouse(wp, m);
|
|
}
|
|
|
|
int
|
|
window_pane_visible(struct window_pane *wp)
|
|
{
|
|
struct window *w = wp->window;
|
|
|
|
if (wp->xoff >= w->sx || wp->yoff >= w->sy)
|
|
return (0);
|
|
if (wp->xoff + wp->sx > w->sx || wp->yoff + wp->sy > w->sy)
|
|
return (0);
|
|
return (1);
|
|
}
|
|
|
|
char *
|
|
window_pane_search(struct window_pane *wp, const char *searchstr, u_int *lineno)
|
|
{
|
|
struct screen *s = &wp->base;
|
|
char *newsearchstr, *line, *msg;
|
|
u_int i;
|
|
|
|
msg = NULL;
|
|
xasprintf(&newsearchstr, "*%s*", searchstr);
|
|
|
|
for (i = 0; i < screen_size_y(s); i++) {
|
|
line = grid_view_string_cells(s->grid, 0, i, screen_size_x(s));
|
|
if (fnmatch(newsearchstr, line, 0) == 0) {
|
|
msg = line;
|
|
if (lineno != NULL)
|
|
*lineno = i;
|
|
break;
|
|
}
|
|
xfree(line);
|
|
}
|
|
|
|
xfree(newsearchstr);
|
|
return (msg);
|
|
}
|
|
|
|
/* Find the pane directly above another. */
|
|
struct window_pane *
|
|
window_pane_find_up(struct window_pane *wp)
|
|
{
|
|
struct window_pane *wp2;
|
|
u_int left, top;
|
|
|
|
if (wp == NULL || !window_pane_visible(wp))
|
|
return (NULL);
|
|
|
|
top = wp->yoff;
|
|
if (top == 0)
|
|
top = wp->window->sy + 1;
|
|
left = wp->xoff;
|
|
|
|
TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
|
|
if (!window_pane_visible(wp2))
|
|
continue;
|
|
if (wp2->yoff + wp2->sy + 1 != top)
|
|
continue;
|
|
if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
|
|
return (wp2);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/* Find the pane directly below another. */
|
|
struct window_pane *
|
|
window_pane_find_down(struct window_pane *wp)
|
|
{
|
|
struct window_pane *wp2;
|
|
u_int left, bottom;
|
|
|
|
if (wp == NULL || !window_pane_visible(wp))
|
|
return (NULL);
|
|
|
|
bottom = wp->yoff + wp->sy + 1;
|
|
if (bottom >= wp->window->sy)
|
|
bottom = 0;
|
|
left = wp->xoff;
|
|
|
|
TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
|
|
if (!window_pane_visible(wp2))
|
|
continue;
|
|
if (wp2->yoff != bottom)
|
|
continue;
|
|
if (left >= wp2->xoff && left <= wp2->xoff + wp2->sx)
|
|
return (wp2);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Find the pane directly to the left of another, adjacent to the left side and
|
|
* containing the top edge.
|
|
*/
|
|
struct window_pane *
|
|
window_pane_find_left(struct window_pane *wp)
|
|
{
|
|
struct window_pane *wp2;
|
|
u_int left, top;
|
|
|
|
if (wp == NULL || !window_pane_visible(wp))
|
|
return (NULL);
|
|
|
|
left = wp->xoff;
|
|
if (left == 0)
|
|
left = wp->window->sx + 1;
|
|
top = wp->yoff;
|
|
|
|
TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
|
|
if (!window_pane_visible(wp2))
|
|
continue;
|
|
if (wp2->xoff + wp2->sx + 1 != left)
|
|
continue;
|
|
if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
|
|
return (wp2);
|
|
}
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Find the pane directly to the right of another, that is adjacent to the
|
|
* right edge and including the top edge.
|
|
*/
|
|
struct window_pane *
|
|
window_pane_find_right(struct window_pane *wp)
|
|
{
|
|
struct window_pane *wp2;
|
|
u_int right, top;
|
|
|
|
if (wp == NULL || !window_pane_visible(wp))
|
|
return (NULL);
|
|
|
|
right = wp->xoff + wp->sx + 1;
|
|
if (right >= wp->window->sx)
|
|
right = 0;
|
|
top = wp->yoff;
|
|
|
|
TAILQ_FOREACH(wp2, &wp->window->panes, entry) {
|
|
if (!window_pane_visible(wp2))
|
|
continue;
|
|
if (wp2->xoff != right)
|
|
continue;
|
|
if (top >= wp2->yoff && top <= wp2->yoff + wp2->sy)
|
|
return (wp2);
|
|
}
|
|
return (NULL);
|
|
}
|