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server-client.c
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server-client.c
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/* $OpenBSD$ */
/*
* Copyright (c) 2009 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 <sys/uio.h>
#include <errno.h>
#include <event.h>
#include <fcntl.h>
#include <stdlib.h>
#include <string.h>
#include <time.h>
#include <unistd.h>
#include "tmux.h"
void server_client_free(int, short, void *);
void server_client_check_focus(struct window_pane *);
void server_client_check_resize(struct window_pane *);
key_code server_client_check_mouse(struct client *);
void server_client_repeat_timer(int, short, void *);
void server_client_check_exit(struct client *);
void server_client_check_redraw(struct client *);
void server_client_set_title(struct client *);
void server_client_reset_state(struct client *);
int server_client_assume_paste(struct session *);
void server_client_dispatch(struct imsg *, void *);
void server_client_dispatch_command(struct client *, struct imsg *);
void server_client_dispatch_identify(struct client *, struct imsg *);
void server_client_dispatch_shell(struct client *);
/* Check if this client is inside this server. */
int
server_client_check_nested(struct client *c)
{
struct environ_entry *envent;
struct window_pane *wp;
if (c->tty.path == NULL)
return (0);
envent = environ_find(c->environ, "TMUX");
if (envent == NULL || *envent->value == '\0')
return (0);
RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
if (strcmp(wp->tty, c->tty.path) == 0)
return (1);
}
return (0);
}
/* Set client key table. */
void
server_client_set_key_table(struct client *c, const char *name)
{
if (name == NULL)
name = server_client_get_key_table(c);
key_bindings_unref_table(c->keytable);
c->keytable = key_bindings_get_table(name, 1);
c->keytable->references++;
}
/* Get default key table. */
const char *
server_client_get_key_table(struct client *c)
{
struct session *s = c->session;
const char *name;
if (s == NULL)
return ("root");
name = options_get_string(s->options, "key-table");
if (*name == '\0')
return ("root");
return (name);
}
/* Create a new client. */
void
server_client_create(int fd)
{
struct client *c;
setblocking(fd, 0);
c = xcalloc(1, sizeof *c);
c->references = 1;
c->peer = proc_add_peer(server_proc, fd, server_client_dispatch, c);
if (gettimeofday(&c->creation_time, NULL) != 0)
fatal("gettimeofday failed");
memcpy(&c->activity_time, &c->creation_time, sizeof c->activity_time);
c->environ = environ_create();
c->fd = -1;
c->cwd = NULL;
c->cmdq = cmdq_new(c);
c->cmdq->client_exit = 1;
c->stdin_data = evbuffer_new();
c->stdout_data = evbuffer_new();
c->stderr_data = evbuffer_new();
c->tty.fd = -1;
c->title = NULL;
c->session = NULL;
c->last_session = NULL;
c->tty.sx = 80;
c->tty.sy = 24;
screen_init(&c->status, c->tty.sx, 1, 0);
c->message_string = NULL;
TAILQ_INIT(&c->message_log);
c->prompt_string = NULL;
c->prompt_buffer = NULL;
c->prompt_index = 0;
c->flags |= CLIENT_FOCUSED;
c->keytable = key_bindings_get_table("root", 1);
c->keytable->references++;
evtimer_set(&c->repeat_timer, server_client_repeat_timer, c);
TAILQ_INSERT_TAIL(&clients, c, entry);
log_debug("new client %p", c);
}
/* Open client terminal if needed. */
int
server_client_open(struct client *c, char **cause)
{
if (c->flags & CLIENT_CONTROL)
return (0);
if (strcmp(c->ttyname, "/dev/tty") == 0) {
*cause = xstrdup("can't use /dev/tty");
return (-1);
}
if (!(c->flags & CLIENT_TERMINAL)) {
*cause = xstrdup("not a terminal");
return (-1);
}
if (tty_open(&c->tty, cause) != 0)
return (-1);
return (0);
}
/* Lost a client. */
void
server_client_lost(struct client *c)
{
struct message_entry *msg, *msg1;
c->flags |= CLIENT_DEAD;
status_prompt_clear(c);
status_message_clear(c);
if (c->stdin_callback != NULL)
c->stdin_callback(c, 1, c->stdin_callback_data);
TAILQ_REMOVE(&clients, c, entry);
log_debug("lost client %p", c);
/*
* If CLIENT_TERMINAL hasn't been set, then tty_init hasn't been called
* and tty_free might close an unrelated fd.
*/
if (c->flags & CLIENT_TERMINAL)
tty_free(&c->tty);
free(c->ttyname);
free(c->term);
evbuffer_free(c->stdin_data);
evbuffer_free(c->stdout_data);
if (c->stderr_data != c->stdout_data)
evbuffer_free(c->stderr_data);
if (event_initialized(&c->status_timer))
evtimer_del(&c->status_timer);
screen_free(&c->status);
free(c->title);
free((void *)c->cwd);
evtimer_del(&c->repeat_timer);
key_bindings_unref_table(c->keytable);
if (event_initialized(&c->identify_timer))
evtimer_del(&c->identify_timer);
free(c->message_string);
if (event_initialized(&c->message_timer))
evtimer_del(&c->message_timer);
TAILQ_FOREACH_SAFE(msg, &c->message_log, entry, msg1) {
free(msg->msg);
TAILQ_REMOVE(&c->message_log, msg, entry);
free(msg);
}
free(c->prompt_string);
free(c->prompt_buffer);
c->cmdq->flags |= CMD_Q_DEAD;
cmdq_free(c->cmdq);
c->cmdq = NULL;
environ_free(c->environ);
proc_remove_peer(c->peer);
c->peer = NULL;
server_client_unref(c);
server_add_accept(0); /* may be more file descriptors now */
recalculate_sizes();
server_check_unattached();
server_update_socket();
}
/* Remove reference from a client. */
void
server_client_unref(struct client *c)
{
log_debug("unref client %p (%d references)", c, c->references);
c->references--;
if (c->references == 0)
event_once(-1, EV_TIMEOUT, server_client_free, c, NULL);
}
/* Free dead client. */
void
server_client_free(__unused int fd, __unused short events, void *arg)
{
struct client *c = arg;
log_debug("free client %p (%d references)", c, c->references);
if (c->references == 0)
free(c);
}
/* Detach a client. */
void
server_client_detach(struct client *c, enum msgtype msgtype)
{
struct session *s = c->session;
if (s == NULL)
return;
hooks_run(c->session->hooks, c, NULL, "client-detached");
proc_send_s(c->peer, msgtype, s->name);
}
/* Check for mouse keys. */
key_code
server_client_check_mouse(struct client *c)
{
struct session *s = c->session;
struct mouse_event *m = &c->tty.mouse;
struct window *w;
struct window_pane *wp;
enum { NOTYPE, DOWN, UP, DRAG, WHEEL } type = NOTYPE;
enum { NOWHERE, PANE, STATUS, BORDER } where = NOWHERE;
u_int x, y, b;
key_code key;
log_debug("mouse %02x at %u,%u (last %u,%u) (%d)", m->b, m->x, m->y,
m->lx, m->ly, c->tty.mouse_drag_flag);
/* What type of event is this? */
if (MOUSE_DRAG(m->b)) {
type = DRAG;
if (c->tty.mouse_drag_flag) {
x = m->x, y = m->y, b = m->b;
log_debug("drag update at %u,%u", x, y);
} else {
x = m->lx, y = m->ly, b = m->lb;
log_debug("drag start at %u,%u", x, y);
}
} else if (MOUSE_WHEEL(m->b)) {
type = WHEEL;
x = m->x, y = m->y, b = m->b;
log_debug("wheel at %u,%u", x, y);
} else if (MOUSE_BUTTONS(m->b) == 3) {
type = UP;
x = m->x, y = m->y, b = m->lb;
log_debug("up at %u,%u", x, y);
} else {
type = DOWN;
x = m->x, y = m->y, b = m->b;
log_debug("down at %u,%u", x, y);
}
if (type == NOTYPE)
return (KEYC_UNKNOWN);
/* Always save the session. */
m->s = s->id;
/* Is this on the status line? */
m->statusat = status_at_line(c);
if (m->statusat != -1 && y == (u_int)m->statusat) {
w = status_get_window_at(c, x);
if (w == NULL)
return (KEYC_UNKNOWN);
m->w = w->id;
where = STATUS;
} else
m->w = -1;
/* Not on status line. Adjust position and check for border or pane. */
if (where == NOWHERE) {
if (m->statusat == 0 && y > 0)
y--;
else if (m->statusat > 0 && y >= (u_int)m->statusat)
y = m->statusat - 1;
TAILQ_FOREACH(wp, &s->curw->window->panes, entry) {
if ((wp->xoff + wp->sx == x &&
wp->yoff <= 1 + y &&
wp->yoff + wp->sy >= y) ||
(wp->yoff + wp->sy == y &&
wp->xoff <= 1 + x &&
wp->xoff + wp->sx >= x))
break;
}
if (wp != NULL)
where = BORDER;
else {
wp = window_get_active_at(s->curw->window, x, y);
if (wp != NULL) {
where = PANE;
log_debug("mouse at %u,%u is on pane %%%u",
x, y, wp->id);
}
}
if (where == NOWHERE)
return (KEYC_UNKNOWN);
m->wp = wp->id;
m->w = wp->window->id;
} else
m->wp = -1;
/* Stop dragging if needed. */
if (type != DRAG && c->tty.mouse_drag_flag) {
if (c->tty.mouse_drag_release != NULL)
c->tty.mouse_drag_release(c, m);
c->tty.mouse_drag_update = NULL;
c->tty.mouse_drag_release = NULL;
/*
* End a mouse drag by passing a MouseDragEnd key corresponding
* to the button that started the drag.
*/
switch (c->tty.mouse_drag_flag) {
case 1:
if (where == PANE)
key = KEYC_MOUSEDRAGEND1_PANE;
if (where == STATUS)
key = KEYC_MOUSEDRAGEND1_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDRAGEND1_BORDER;
break;
case 2:
if (where == PANE)
key = KEYC_MOUSEDRAGEND2_PANE;
if (where == STATUS)
key = KEYC_MOUSEDRAGEND2_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDRAGEND2_BORDER;
break;
case 3:
if (where == PANE)
key = KEYC_MOUSEDRAGEND3_PANE;
if (where == STATUS)
key = KEYC_MOUSEDRAGEND3_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDRAGEND3_BORDER;
break;
default:
key = KEYC_MOUSE;
break;
}
c->tty.mouse_drag_flag = 0;
return (key);
}
/* Convert to a key binding. */
key = KEYC_UNKNOWN;
switch (type) {
case NOTYPE:
break;
case DRAG:
if (c->tty.mouse_drag_update != NULL)
c->tty.mouse_drag_update(c, m);
else {
switch (MOUSE_BUTTONS(b)) {
case 0:
if (where == PANE)
key = KEYC_MOUSEDRAG1_PANE;
if (where == STATUS)
key = KEYC_MOUSEDRAG1_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDRAG1_BORDER;
break;
case 1:
if (where == PANE)
key = KEYC_MOUSEDRAG2_PANE;
if (where == STATUS)
key = KEYC_MOUSEDRAG2_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDRAG2_BORDER;
break;
case 2:
if (where == PANE)
key = KEYC_MOUSEDRAG3_PANE;
if (where == STATUS)
key = KEYC_MOUSEDRAG3_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDRAG3_BORDER;
break;
}
}
/*
* Begin a drag by setting the flag to a non-zero value that
* corresponds to the mouse button in use.
*/
c->tty.mouse_drag_flag = MOUSE_BUTTONS(b) + 1;
break;
case WHEEL:
if (MOUSE_BUTTONS(b) == MOUSE_WHEEL_UP) {
if (where == PANE)
key = KEYC_WHEELUP_PANE;
if (where == STATUS)
key = KEYC_WHEELUP_STATUS;
if (where == BORDER)
key = KEYC_WHEELUP_BORDER;
} else {
if (where == PANE)
key = KEYC_WHEELDOWN_PANE;
if (where == STATUS)
key = KEYC_WHEELDOWN_STATUS;
if (where == BORDER)
key = KEYC_WHEELDOWN_BORDER;
}
break;
case UP:
switch (MOUSE_BUTTONS(b)) {
case 0:
if (where == PANE)
key = KEYC_MOUSEUP1_PANE;
if (where == STATUS)
key = KEYC_MOUSEUP1_STATUS;
if (where == BORDER)
key = KEYC_MOUSEUP1_BORDER;
break;
case 1:
if (where == PANE)
key = KEYC_MOUSEUP2_PANE;
if (where == STATUS)
key = KEYC_MOUSEUP2_STATUS;
if (where == BORDER)
key = KEYC_MOUSEUP2_BORDER;
break;
case 2:
if (where == PANE)
key = KEYC_MOUSEUP3_PANE;
if (where == STATUS)
key = KEYC_MOUSEUP3_STATUS;
if (where == BORDER)
key = KEYC_MOUSEUP3_BORDER;
break;
}
break;
case DOWN:
switch (MOUSE_BUTTONS(b)) {
case 0:
if (where == PANE)
key = KEYC_MOUSEDOWN1_PANE;
if (where == STATUS)
key = KEYC_MOUSEDOWN1_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDOWN1_BORDER;
break;
case 1:
if (where == PANE)
key = KEYC_MOUSEDOWN2_PANE;
if (where == STATUS)
key = KEYC_MOUSEDOWN2_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDOWN2_BORDER;
break;
case 2:
if (where == PANE)
key = KEYC_MOUSEDOWN3_PANE;
if (where == STATUS)
key = KEYC_MOUSEDOWN3_STATUS;
if (where == BORDER)
key = KEYC_MOUSEDOWN3_BORDER;
break;
}
break;
}
if (key == KEYC_UNKNOWN)
return (KEYC_UNKNOWN);
/* Apply modifiers if any. */
if (b & MOUSE_MASK_META)
key |= KEYC_ESCAPE;
if (b & MOUSE_MASK_CTRL)
key |= KEYC_CTRL;
if (b & MOUSE_MASK_SHIFT)
key |= KEYC_SHIFT;
return (key);
}
/* Is this fast enough to probably be a paste? */
int
server_client_assume_paste(struct session *s)
{
struct timeval tv;
int t;
if ((t = options_get_number(s->options, "assume-paste-time")) == 0)
return (0);
timersub(&s->activity_time, &s->last_activity_time, &tv);
if (tv.tv_sec == 0 && tv.tv_usec < t * 1000) {
log_debug("session %s pasting (flag %d)", s->name,
!!(s->flags & SESSION_PASTING));
if (s->flags & SESSION_PASTING)
return (1);
s->flags |= SESSION_PASTING;
return (0);
}
log_debug("session %s not pasting", s->name);
s->flags &= ~SESSION_PASTING;
return (0);
}
/* Handle data key input from client. */
void
server_client_handle_key(struct client *c, key_code key)
{
struct mouse_event *m = &c->tty.mouse;
struct session *s = c->session;
struct window *w;
struct window_pane *wp;
struct timeval tv;
struct key_table *table;
struct key_binding bd_find, *bd;
int xtimeout;
/* Check the client is good to accept input. */
if (s == NULL || (c->flags & (CLIENT_DEAD|CLIENT_SUSPENDED)) != 0)
return;
w = s->curw->window;
/* Update the activity timer. */
if (gettimeofday(&c->activity_time, NULL) != 0)
fatal("gettimeofday failed");
session_update_activity(s, &c->activity_time);
/* Number keys jump to pane in identify mode. */
if (c->flags & CLIENT_IDENTIFY && key >= '0' && key <= '9') {
if (c->flags & CLIENT_READONLY)
return;
window_unzoom(w);
wp = window_pane_at_index(w, key - '0');
if (wp != NULL && window_pane_visible(wp))
window_set_active_pane(w, wp);
server_clear_identify(c);
return;
}
/* Handle status line. */
if (!(c->flags & CLIENT_READONLY)) {
status_message_clear(c);
server_clear_identify(c);
}
if (c->prompt_string != NULL) {
if (!(c->flags & CLIENT_READONLY))
status_prompt_key(c, key);
return;
}
/* Check for mouse keys. */
if (key == KEYC_MOUSE) {
if (c->flags & CLIENT_READONLY)
return;
key = server_client_check_mouse(c);
if (key == KEYC_UNKNOWN)
return;
m->valid = 1;
m->key = key;
if (!options_get_number(s->options, "mouse"))
goto forward;
} else
m->valid = 0;
/* Treat everything as a regular key when pasting is detected. */
if (!KEYC_IS_MOUSE(key) && server_client_assume_paste(s))
goto forward;
retry:
/* Try to see if there is a key binding in the current table. */
bd_find.key = key;
bd = RB_FIND(key_bindings, &c->keytable->key_bindings, &bd_find);
if (bd != NULL) {
/*
* Key was matched in this table. If currently repeating but a
* non-repeating binding was found, stop repeating and try
* again in the root table.
*/
if ((c->flags & CLIENT_REPEAT) && !bd->can_repeat) {
server_client_set_key_table(c, NULL);
c->flags &= ~CLIENT_REPEAT;
server_status_client(c);
goto retry;
}
/*
* Take a reference to this table to make sure the key binding
* doesn't disappear.
*/
table = c->keytable;
table->references++;
/*
* If this is a repeating key, start the timer. Otherwise reset
* the client back to the root table.
*/
xtimeout = options_get_number(s->options, "repeat-time");
if (xtimeout != 0 && bd->can_repeat) {
c->flags |= CLIENT_REPEAT;
tv.tv_sec = xtimeout / 1000;
tv.tv_usec = (xtimeout % 1000) * 1000L;
evtimer_del(&c->repeat_timer);
evtimer_add(&c->repeat_timer, &tv);
} else {
c->flags &= ~CLIENT_REPEAT;
server_client_set_key_table(c, NULL);
}
server_status_client(c);
/* Dispatch the key binding. */
key_bindings_dispatch(bd, c, m);
key_bindings_unref_table(table);
return;
}
/*
* No match in this table. If repeating, switch the client back to the
* root table and try again.
*/
if (c->flags & CLIENT_REPEAT) {
server_client_set_key_table(c, NULL);
c->flags &= ~CLIENT_REPEAT;
server_status_client(c);
goto retry;
}
/* If no match and we're not in the root table, that's it. */
if (strcmp(c->keytable->name, server_client_get_key_table(c)) != 0) {
server_client_set_key_table(c, NULL);
server_status_client(c);
return;
}
/*
* No match, but in the root table. Prefix switches to the prefix table
* and everything else is passed through.
*/
if (key == (key_code)options_get_number(s->options, "prefix") ||
key == (key_code)options_get_number(s->options, "prefix2")) {
server_client_set_key_table(c, "prefix");
server_status_client(c);
return;
}
forward:
if (c->flags & CLIENT_READONLY)
return;
if (KEYC_IS_MOUSE(key))
wp = cmd_mouse_pane(m, NULL, NULL);
else
wp = w->active;
if (wp != NULL)
window_pane_key(wp, c, s, key, m);
}
/* Client functions that need to happen every loop. */
void
server_client_loop(void)
{
struct client *c;
struct window *w;
struct window_pane *wp;
TAILQ_FOREACH(c, &clients, entry) {
server_client_check_exit(c);
if (c->session != NULL) {
server_client_check_redraw(c);
server_client_reset_state(c);
}
}
/*
* Any windows will have been redrawn as part of clients, so clear
* their flags now. Also check pane focus and resize.
*/
RB_FOREACH(w, windows, &windows) {
w->flags &= ~WINDOW_REDRAW;
TAILQ_FOREACH(wp, &w->panes, entry) {
if (wp->fd != -1) {
server_client_check_focus(wp);
server_client_check_resize(wp);
}
wp->flags &= ~PANE_REDRAW;
}
check_window_name(w);
}
}
/* Check if pane should be resized. */
void
server_client_check_resize(struct window_pane *wp)
{
struct winsize ws;
if (!(wp->flags & PANE_RESIZE))
return;
memset(&ws, 0, sizeof ws);
ws.ws_col = wp->sx;
ws.ws_row = wp->sy;
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");
}
wp->flags &= ~PANE_RESIZE;
}
/* Check whether pane should be focused. */
void
server_client_check_focus(struct window_pane *wp)
{
struct client *c;
int push;
/* Are focus events off? */
if (!options_get_number(global_options, "focus-events"))
return;
/* Do we need to push the focus state? */
push = wp->flags & PANE_FOCUSPUSH;
wp->flags &= ~PANE_FOCUSPUSH;
/* If we don't care about focus, forget it. */
if (!(wp->base.mode & MODE_FOCUSON))
return;
/* If we're not the active pane in our window, we're not focused. */
if (wp->window->active != wp)
goto not_focused;
/* If we're in a mode, we're not focused. */
if (wp->screen != &wp->base)
goto not_focused;
/*
* If our window is the current window in any focused clients with an
* attached session, we're focused.
*/
TAILQ_FOREACH(c, &clients, entry) {
if (c->session == NULL || !(c->flags & CLIENT_FOCUSED))
continue;
if (c->session->flags & SESSION_UNATTACHED)
continue;
if (c->session->curw->window == wp->window)
goto focused;
}
not_focused:
if (push || (wp->flags & PANE_FOCUSED))
bufferevent_write(wp->event, "\033[O", 3);
wp->flags &= ~PANE_FOCUSED;
return;
focused:
if (push || !(wp->flags & PANE_FOCUSED))
bufferevent_write(wp->event, "\033[I", 3);
wp->flags |= PANE_FOCUSED;
}
/*
* Update cursor position and mode settings. The scroll region and attributes
* are cleared when idle (waiting for an event) as this is the most likely time
* a user may interrupt tmux, for example with ~^Z in ssh(1). This is a
* compromise between excessive resets and likelihood of an interrupt.
*
* tty_region/tty_reset/tty_update_mode already take care of not resetting
* things that are already in their default state.
*/
void
server_client_reset_state(struct client *c)
{
struct window *w = c->session->curw->window;
struct window_pane *wp = w->active;
struct screen *s = wp->screen;
struct options *oo = c->session->options;
int status, mode, o;
if (c->flags & CLIENT_SUSPENDED)
return;
if (c->flags & CLIENT_CONTROL)
return;
tty_region(&c->tty, 0, c->tty.sy - 1);
status = options_get_number(oo, "status");
if (!window_pane_visible(wp) || wp->yoff + s->cy >= c->tty.sy - status)
tty_cursor(&c->tty, 0, 0);
else {
o = status && options_get_number(oo, "status-position") == 0;
tty_cursor(&c->tty, wp->xoff + s->cx, o + wp->yoff + s->cy);
}
/*
* Set mouse mode if requested. To support dragging, always use button
* mode.
*/
mode = s->mode;
if (options_get_number(oo, "mouse"))
mode = (mode & ~ALL_MOUSE_MODES) | MODE_MOUSE_BUTTON;
/* Set the terminal mode and reset attributes. */
tty_update_mode(&c->tty, mode, s);
tty_reset(&c->tty);
}
/* Repeat time callback. */
void
server_client_repeat_timer(__unused int fd, __unused short events, void *data)
{
struct client *c = data;
if (c->flags & CLIENT_REPEAT) {
server_client_set_key_table(c, NULL);
c->flags &= ~CLIENT_REPEAT;
server_status_client(c);
}
}
/* Check if client should be exited. */
void
server_client_check_exit(struct client *c)
{
if (!(c->flags & CLIENT_EXIT))
return;
if (EVBUFFER_LENGTH(c->stdin_data) != 0)
return;
if (EVBUFFER_LENGTH(c->stdout_data) != 0)
return;
if (EVBUFFER_LENGTH(c->stderr_data) != 0)
return;
proc_send(c->peer, MSG_EXIT, -1, &c->retval, sizeof c->retval);
c->flags &= ~CLIENT_EXIT;
}
/* Check for client redraws. */
void
server_client_check_redraw(struct client *c)
{
struct session *s = c->session;
struct tty *tty = &c->tty;
struct window_pane *wp;
int flags, redraw;
if (c->flags & (CLIENT_CONTROL|CLIENT_SUSPENDED))
return;
if (c->flags & (CLIENT_REDRAW|CLIENT_STATUS)) {
if (options_get_number(s->options, "set-titles"))
server_client_set_title(c);
if (c->message_string != NULL)
redraw = status_message_redraw(c);
else if (c->prompt_string != NULL)
redraw = status_prompt_redraw(c);
else
redraw = status_redraw(c);
if (!redraw)
c->flags &= ~CLIENT_STATUS;
}
flags = tty->flags & (TTY_FREEZE|TTY_NOCURSOR);
tty->flags = (tty->flags & ~TTY_FREEZE) | TTY_NOCURSOR;
if (c->flags & CLIENT_REDRAW) {
tty_update_mode(tty, tty->mode, NULL);
screen_redraw_screen(c, 1, 1, 1);
c->flags &= ~(CLIENT_STATUS|CLIENT_BORDERS);
} else if (c->flags & CLIENT_REDRAWWINDOW) {
tty_update_mode(tty, tty->mode, NULL);
TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry)
screen_redraw_pane(c, wp);
c->flags &= ~CLIENT_REDRAWWINDOW;
} else {
TAILQ_FOREACH(wp, &c->session->curw->window->panes, entry) {
if (wp->flags & PANE_REDRAW) {
tty_update_mode(tty, tty->mode, NULL);
screen_redraw_pane(c, wp);
}
}
}
if (c->flags & CLIENT_BORDERS) {
tty_update_mode(tty, tty->mode, NULL);
screen_redraw_screen(c, 0, 0, 1);
}
if (c->flags & CLIENT_STATUS) {
tty_update_mode(tty, tty->mode, NULL);
screen_redraw_screen(c, 0, 1, 0);
}
tty->flags = (tty->flags & ~(TTY_FREEZE|TTY_NOCURSOR)) | flags;
tty_update_mode(tty, tty->mode, NULL);
c->flags &= ~(CLIENT_REDRAW|CLIENT_BORDERS|CLIENT_STATUS|
CLIENT_STATUSFORCE);
}
/* Set client title. */
void
server_client_set_title(struct client *c)
{
struct session *s = c->session;
const char *template;
char *title;
struct format_tree *ft;
template = options_get_string(s->options, "set-titles-string");
ft = format_create(NULL, 0);