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cmd-find.c
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cmd-find.c
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/* $OpenBSD$ */
/*
* Copyright (c) 2015 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 <fnmatch.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include "tmux.h"
static int cmd_find_session_better(struct session *, struct session *,
int);
static struct session *cmd_find_best_session(struct session **, u_int, int);
static int cmd_find_best_session_with_window(struct cmd_find_state *);
static int cmd_find_best_winlink_with_window(struct cmd_find_state *);
static const char *cmd_find_map_table(const char *[][2], const char *);
static int cmd_find_get_session(struct cmd_find_state *, const char *);
static int cmd_find_get_window(struct cmd_find_state *, const char *, int);
static int cmd_find_get_window_with_session(struct cmd_find_state *,
const char *);
static int cmd_find_get_pane(struct cmd_find_state *, const char *, int);
static int cmd_find_get_pane_with_session(struct cmd_find_state *,
const char *);
static int cmd_find_get_pane_with_window(struct cmd_find_state *,
const char *);
static const char *cmd_find_session_table[][2] = {
{ NULL, NULL }
};
static const char *cmd_find_window_table[][2] = {
{ "{start}", "^" },
{ "{last}", "!" },
{ "{end}", "$" },
{ "{next}", "+" },
{ "{previous}", "-" },
{ NULL, NULL }
};
static const char *cmd_find_pane_table[][2] = {
{ "{last}", "!" },
{ "{next}", "+" },
{ "{previous}", "-" },
{ "{top}", "top" },
{ "{bottom}", "bottom" },
{ "{left}", "left" },
{ "{right}", "right" },
{ "{top-left}", "top-left" },
{ "{top-right}", "top-right" },
{ "{bottom-left}", "bottom-left" },
{ "{bottom-right}", "bottom-right" },
{ "{up-of}", "{up-of}" },
{ "{down-of}", "{down-of}" },
{ "{left-of}", "{left-of}" },
{ "{right-of}", "{right-of}" },
{ NULL, NULL }
};
/* Get session from TMUX if present. */
static struct session *
cmd_find_try_TMUX(struct client *c)
{
struct environ_entry *envent;
char tmp[256];
long long pid;
u_int session;
envent = environ_find(c->environ, "TMUX");
if (envent == NULL)
return (NULL);
if (sscanf(envent->value, "%255[^,],%lld,%d", tmp, &pid, &session) != 3)
return (NULL);
if (pid != getpid())
return (NULL);
log_debug("client %p TMUX %s (session @%u)", c, envent->value, session);
return (session_find_by_id(session));
}
/* Find pane containing client if any. */
static struct window_pane *
cmd_find_inside_pane(struct client *c)
{
struct window_pane *wp;
if (c == NULL)
return (NULL);
RB_FOREACH(wp, window_pane_tree, &all_window_panes) {
if (strcmp(wp->tty, c->ttyname) == 0)
break;
}
return (wp);
}
/* Is this client better? */
static int
cmd_find_client_better(struct client *c, struct client *than)
{
if (than == NULL)
return (1);
return (timercmp(&c->activity_time, &than->activity_time, >));
}
/* Find best client for session. */
static struct client *
cmd_find_best_client(struct session *s)
{
struct client *c_loop, *c;
if (s->flags & SESSION_UNATTACHED)
s = NULL;
c = NULL;
TAILQ_FOREACH(c_loop, &clients, entry) {
if (c_loop->session == NULL)
continue;
if (s != NULL && c_loop->session != s)
continue;
if (cmd_find_client_better(c_loop, c))
c = c_loop;
}
return (c);
}
/* Is this session better? */
static int
cmd_find_session_better(struct session *s, struct session *than, int flags)
{
int attached;
if (than == NULL)
return (1);
if (flags & CMD_FIND_PREFER_UNATTACHED) {
attached = (~than->flags & SESSION_UNATTACHED);
if (attached && (s->flags & SESSION_UNATTACHED))
return (1);
else if (!attached && (~s->flags & SESSION_UNATTACHED))
return (0);
}
return (timercmp(&s->activity_time, &than->activity_time, >));
}
/* Find best session from a list, or all if list is NULL. */
static struct session *
cmd_find_best_session(struct session **slist, u_int ssize, int flags)
{
struct session *s_loop, *s;
u_int i;
s = NULL;
if (slist != NULL) {
for (i = 0; i < ssize; i++) {
if (cmd_find_session_better(slist[i], s, flags))
s = slist[i];
}
} else {
RB_FOREACH(s_loop, sessions, &sessions) {
if (cmd_find_session_better(s_loop, s, flags))
s = s_loop;
}
}
return (s);
}
/* Find best session and winlink for window. */
static int
cmd_find_best_session_with_window(struct cmd_find_state *fs)
{
struct session **slist = NULL;
u_int ssize;
struct session *s;
ssize = 0;
RB_FOREACH(s, sessions, &sessions) {
if (!session_has(s, fs->w))
continue;
slist = xreallocarray(slist, ssize + 1, sizeof *slist);
slist[ssize++] = s;
}
if (ssize == 0)
goto fail;
fs->s = cmd_find_best_session(slist, ssize, fs->flags);
if (fs->s == NULL)
goto fail;
free(slist);
return (cmd_find_best_winlink_with_window(fs));
fail:
free(slist);
return (-1);
}
/*
* Find the best winlink for a window (the current if it contains the pane,
* otherwise the first).
*/
static int
cmd_find_best_winlink_with_window(struct cmd_find_state *fs)
{
struct winlink *wl, *wl_loop;
wl = NULL;
if (fs->s->curw != NULL && fs->s->curw->window == fs->w)
wl = fs->s->curw;
else {
RB_FOREACH(wl_loop, winlinks, &fs->s->windows) {
if (wl_loop->window == fs->w) {
wl = wl_loop;
break;
}
}
}
if (wl == NULL)
return (-1);
fs->wl = wl;
fs->idx = fs->wl->idx;
return (0);
}
/* Maps string in table. */
static const char *
cmd_find_map_table(const char *table[][2], const char *s)
{
u_int i;
for (i = 0; table[i][0] != NULL; i++) {
if (strcmp(s, table[i][0]) == 0)
return (table[i][1]);
}
return (s);
}
/* Find session from string. Fills in s. */
static int
cmd_find_get_session(struct cmd_find_state *fs, const char *session)
{
struct session *s, *s_loop;
struct client *c;
log_debug("%s: %s", __func__, session);
/* Check for session ids starting with $. */
if (*session == '$') {
fs->s = session_find_by_id_str(session);
if (fs->s == NULL)
return (-1);
return (0);
}
/* Look for exactly this session. */
fs->s = session_find(session);
if (fs->s != NULL)
return (0);
/* Look for as a client. */
c = cmd_find_client(NULL, session, 1);
if (c != NULL && c->session != NULL) {
fs->s = c->session;
return (0);
}
/* Stop now if exact only. */
if (fs->flags & CMD_FIND_EXACT_SESSION)
return (-1);
/* Otherwise look for prefix. */
s = NULL;
RB_FOREACH(s_loop, sessions, &sessions) {
if (strncmp(session, s_loop->name, strlen(session)) == 0) {
if (s != NULL)
return (-1);
s = s_loop;
}
}
if (s != NULL) {
fs->s = s;
return (0);
}
/* Then as a pattern. */
s = NULL;
RB_FOREACH(s_loop, sessions, &sessions) {
if (fnmatch(session, s_loop->name, 0) == 0) {
if (s != NULL)
return (-1);
s = s_loop;
}
}
if (s != NULL) {
fs->s = s;
return (0);
}
return (-1);
}
/* Find window from string. Fills in s, wl, w. */
static int
cmd_find_get_window(struct cmd_find_state *fs, const char *window, int only)
{
log_debug("%s: %s", __func__, window);
/* Check for window ids starting with @. */
if (*window == '@') {
fs->w = window_find_by_id_str(window);
if (fs->w == NULL)
return (-1);
return (cmd_find_best_session_with_window(fs));
}
/* Not a window id, so use the current session. */
fs->s = fs->current->s;
/* We now only need to find the winlink in this session. */
if (cmd_find_get_window_with_session(fs, window) == 0)
return (0);
/* Otherwise try as a session itself. */
if (!only && cmd_find_get_session(fs, window) == 0) {
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
if (~fs->flags & CMD_FIND_WINDOW_INDEX)
fs->idx = fs->wl->idx;
return (0);
}
return (-1);
}
/*
* Find window from string, assuming it is in given session. Needs s, fills in
* wl and w.
*/
static int
cmd_find_get_window_with_session(struct cmd_find_state *fs, const char *window)
{
struct winlink *wl;
const char *errstr;
int idx, n, exact;
struct session *s;
log_debug("%s: %s", __func__, window);
exact = (fs->flags & CMD_FIND_EXACT_WINDOW);
/*
* Start with the current window as the default. So if only an index is
* found, the window will be the current.
*/
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
/* Check for window ids starting with @. */
if (*window == '@') {
fs->w = window_find_by_id_str(window);
if (fs->w == NULL || !session_has(fs->s, fs->w))
return (-1);
return (cmd_find_best_winlink_with_window(fs));
}
/* Try as an offset. */
if (!exact && (window[0] == '+' || window[0] == '-')) {
if (window[1] != '\0')
n = strtonum(window + 1, 1, INT_MAX, NULL);
else
n = 1;
s = fs->s;
if (fs->flags & CMD_FIND_WINDOW_INDEX) {
if (window[0] == '+') {
if (INT_MAX - s->curw->idx < n)
return (-1);
fs->idx = s->curw->idx + n;
} else {
if (n < s->curw->idx)
return (-1);
fs->idx = s->curw->idx - n;
}
return (0);
}
if (window[0] == '+')
fs->wl = winlink_next_by_number(s->curw, s, n);
else
fs->wl = winlink_previous_by_number(s->curw, s, n);
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
}
/* Try special characters. */
if (!exact) {
if (strcmp(window, "!") == 0) {
fs->wl = TAILQ_FIRST(&fs->s->lastw);
if (fs->wl == NULL)
return (-1);
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
} else if (strcmp(window, "^") == 0) {
fs->wl = RB_MIN(winlinks, &fs->s->windows);
if (fs->wl == NULL)
return (-1);
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
} else if (strcmp(window, "$") == 0) {
fs->wl = RB_MAX(winlinks, &fs->s->windows);
if (fs->wl == NULL)
return (-1);
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
}
/* First see if this is a valid window index in this session. */
if (window[0] != '+' && window[0] != '-') {
idx = strtonum(window, 0, INT_MAX, &errstr);
if (errstr == NULL) {
if (fs->flags & CMD_FIND_WINDOW_INDEX) {
fs->idx = idx;
return (0);
}
fs->wl = winlink_find_by_index(&fs->s->windows, idx);
if (fs->wl != NULL) {
fs->w = fs->wl->window;
return (0);
}
}
}
/* Look for exact matches, error if more than one. */
fs->wl = NULL;
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (strcmp(window, wl->window->name) == 0) {
if (fs->wl != NULL)
return (-1);
fs->wl = wl;
}
}
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
/* Stop now if exact only. */
if (exact)
return (-1);
/* Try as the start of a window name, error if multiple. */
fs->wl = NULL;
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (strncmp(window, wl->window->name, strlen(window)) == 0) {
if (fs->wl != NULL)
return (-1);
fs->wl = wl;
}
}
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
/* Now look for pattern matches, again error if multiple. */
fs->wl = NULL;
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (fnmatch(window, wl->window->name, 0) == 0) {
if (fs->wl != NULL)
return (-1);
fs->wl = wl;
}
}
if (fs->wl != NULL) {
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
return (0);
}
return (-1);
}
/* Find pane from string. Fills in s, wl, w, wp. */
static int
cmd_find_get_pane(struct cmd_find_state *fs, const char *pane, int only)
{
log_debug("%s: %s", __func__, pane);
/* Check for pane ids starting with %. */
if (*pane == '%') {
fs->wp = window_pane_find_by_id_str(pane);
if (fs->wp == NULL)
return (-1);
fs->w = fs->wp->window;
return (cmd_find_best_session_with_window(fs));
}
/* Not a pane id, so try the current session and window. */
fs->s = fs->current->s;
fs->wl = fs->current->wl;
fs->idx = fs->current->idx;
fs->w = fs->current->w;
/* We now only need to find the pane in this window. */
if (cmd_find_get_pane_with_window(fs, pane) == 0)
return (0);
/* Otherwise try as a window itself (this will also try as session). */
if (!only && cmd_find_get_window(fs, pane, 0) == 0) {
fs->wp = fs->w->active;
return (0);
}
return (-1);
}
/*
* Find pane from string, assuming it is in given session. Needs s, fills in wl
* and w and wp.
*/
static int
cmd_find_get_pane_with_session(struct cmd_find_state *fs, const char *pane)
{
log_debug("%s: %s", __func__, pane);
/* Check for pane ids starting with %. */
if (*pane == '%') {
fs->wp = window_pane_find_by_id_str(pane);
if (fs->wp == NULL)
return (-1);
fs->w = fs->wp->window;
return (cmd_find_best_winlink_with_window(fs));
}
/* Otherwise use the current window. */
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
/* Now we just need to look up the pane. */
return (cmd_find_get_pane_with_window(fs, pane));
}
/*
* Find pane from string, assuming it is in the given window. Needs w, fills in
* wp.
*/
static int
cmd_find_get_pane_with_window(struct cmd_find_state *fs, const char *pane)
{
const char *errstr;
int idx;
struct window_pane *wp;
u_int n;
log_debug("%s: %s", __func__, pane);
/* Check for pane ids starting with %. */
if (*pane == '%') {
fs->wp = window_pane_find_by_id_str(pane);
if (fs->wp == NULL)
return (-1);
if (fs->wp->window != fs->w)
return (-1);
return (0);
}
/* Try special characters. */
if (strcmp(pane, "!") == 0) {
if (fs->w->last == NULL)
return (-1);
fs->wp = fs->w->last;
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{up-of}") == 0) {
fs->wp = window_pane_find_up(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{down-of}") == 0) {
fs->wp = window_pane_find_down(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{left-of}") == 0) {
fs->wp = window_pane_find_left(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
} else if (strcmp(pane, "{right-of}") == 0) {
fs->wp = window_pane_find_right(fs->w->active);
if (fs->wp == NULL)
return (-1);
return (0);
}
/* Try as an offset. */
if (pane[0] == '+' || pane[0] == '-') {
if (pane[1] != '\0')
n = strtonum(pane + 1, 1, INT_MAX, NULL);
else
n = 1;
wp = fs->w->active;
if (pane[0] == '+')
fs->wp = window_pane_next_by_number(fs->w, wp, n);
else
fs->wp = window_pane_previous_by_number(fs->w, wp, n);
if (fs->wp != NULL)
return (0);
}
/* Get pane by index. */
idx = strtonum(pane, 0, INT_MAX, &errstr);
if (errstr == NULL) {
fs->wp = window_pane_at_index(fs->w, idx);
if (fs->wp != NULL)
return (0);
}
/* Try as a description. */
fs->wp = window_find_string(fs->w, pane);
if (fs->wp != NULL)
return (0);
return (-1);
}
/* Clear state. */
void
cmd_find_clear_state(struct cmd_find_state *fs, int flags)
{
memset(fs, 0, sizeof *fs);
fs->flags = flags;
fs->idx = -1;
}
/* Check if state is empty. */
int
cmd_find_empty_state(struct cmd_find_state *fs)
{
if (fs->s == NULL && fs->wl == NULL && fs->w == NULL && fs->wp == NULL)
return (1);
return (0);
}
/* Check if a state if valid. */
int
cmd_find_valid_state(struct cmd_find_state *fs)
{
struct winlink *wl;
if (fs->s == NULL || fs->wl == NULL || fs->w == NULL || fs->wp == NULL)
return (0);
if (!session_alive(fs->s))
return (0);
RB_FOREACH(wl, winlinks, &fs->s->windows) {
if (wl->window == fs->w && wl == fs->wl)
break;
}
if (wl == NULL)
return (0);
if (fs->w != fs->wl->window)
return (0);
return (window_has_pane(fs->w, fs->wp));
}
/* Copy a state. */
void
cmd_find_copy_state(struct cmd_find_state *dst, struct cmd_find_state *src)
{
dst->s = src->s;
dst->wl = src->wl;
dst->idx = src->idx;
dst->w = src->w;
dst->wp = src->wp;
}
/* Log the result. */
void
cmd_find_log_state(const char *prefix, struct cmd_find_state *fs)
{
if (fs->s != NULL)
log_debug("%s: s=$%u", prefix, fs->s->id);
else
log_debug("%s: s=none", prefix);
if (fs->wl != NULL) {
log_debug("%s: wl=%u %d w=@%u %s", prefix, fs->wl->idx,
fs->wl->window == fs->w, fs->w->id, fs->w->name);
} else
log_debug("%s: wl=none", prefix);
if (fs->wp != NULL)
log_debug("%s: wp=%%%u", prefix, fs->wp->id);
else
log_debug("%s: wp=none", prefix);
if (fs->idx != -1)
log_debug("%s: idx=%d", prefix, fs->idx);
else
log_debug("%s: idx=none", prefix);
}
/* Find state from a session. */
void
cmd_find_from_session(struct cmd_find_state *fs, struct session *s, int flags)
{
cmd_find_clear_state(fs, flags);
fs->s = s;
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
cmd_find_log_state(__func__, fs);
}
/* Find state from a winlink. */
void
cmd_find_from_winlink(struct cmd_find_state *fs, struct winlink *wl, int flags)
{
cmd_find_clear_state(fs, flags);
fs->s = wl->session;
fs->wl = wl;
fs->w = wl->window;
fs->wp = wl->window->active;
cmd_find_log_state(__func__, fs);
}
/* Find state from a session and window. */
int
cmd_find_from_session_window(struct cmd_find_state *fs, struct session *s,
struct window *w, int flags)
{
cmd_find_clear_state(fs, flags);
fs->s = s;
fs->w = w;
if (cmd_find_best_winlink_with_window(fs) != 0) {
cmd_find_clear_state(fs, flags);
return (-1);
}
fs->wp = fs->w->active;
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from a window. */
int
cmd_find_from_window(struct cmd_find_state *fs, struct window *w, int flags)
{
cmd_find_clear_state(fs, flags);
fs->w = w;
if (cmd_find_best_session_with_window(fs) != 0) {
cmd_find_clear_state(fs, flags);
return (-1);
}
if (cmd_find_best_winlink_with_window(fs) != 0) {
cmd_find_clear_state(fs, flags);
return (-1);
}
fs->wp = fs->w->active;
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from a winlink and pane. */
void
cmd_find_from_winlink_pane(struct cmd_find_state *fs, struct winlink *wl,
struct window_pane *wp, int flags)
{
cmd_find_clear_state(fs, flags);
fs->s = wl->session;
fs->wl = wl;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
fs->wp = wp;
cmd_find_log_state(__func__, fs);
}
/* Find state from a pane. */
int
cmd_find_from_pane(struct cmd_find_state *fs, struct window_pane *wp, int flags)
{
if (cmd_find_from_window(fs, wp->window, flags) != 0)
return (-1);
fs->wp = wp;
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from nothing. */
int
cmd_find_from_nothing(struct cmd_find_state *fs, int flags)
{
cmd_find_clear_state(fs, flags);
fs->s = cmd_find_best_session(NULL, 0, flags);
if (fs->s == NULL) {
cmd_find_clear_state(fs, flags);
return (-1);
}
fs->wl = fs->s->curw;
fs->idx = fs->wl->idx;
fs->w = fs->wl->window;
fs->wp = fs->w->active;
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from mouse. */
int
cmd_find_from_mouse(struct cmd_find_state *fs, struct mouse_event *m, int flags)
{
cmd_find_clear_state(fs, flags);
if (!m->valid)
return (-1);
fs->wp = cmd_mouse_pane(m, &fs->s, &fs->wl);
if (fs->wp == NULL) {
cmd_find_clear_state(fs, flags);
return (-1);
}
fs->w = fs->wl->window;
cmd_find_log_state(__func__, fs);
return (0);
}
/* Find state from client. */
int
cmd_find_from_client(struct cmd_find_state *fs, struct client *c, int flags)
{
struct session *s;
struct winlink *wl;
struct window_pane *wp;
/* If no client, treat as from nothing. */
if (c == NULL)
return (cmd_find_from_nothing(fs, flags));
/* If this is an attached client, all done. */
if (c->session != NULL) {
cmd_find_from_session(fs, c->session, flags);
return (0);
}
cmd_find_clear_state(fs, flags);
/*
* If this is an unattached client running in a pane, we can use that
* to limit the list of sessions to those containing that pane.
*/
wp = cmd_find_inside_pane(c);
if (wp == NULL)
goto unknown_pane;
/* If we have a session in TMUX, see if it has this pane. */
s = cmd_find_try_TMUX(c);
if (s != NULL) {
RB_FOREACH(wl, winlinks, &s->windows) {
if (window_has_pane(wl->window, wp))
break;
}
if (wl != NULL) {
fs->s = s;
fs->wl = s->curw; /* use current session */
fs->w = fs->wl->window;
fs->wp = fs->w->active; /* use active pane */
cmd_find_log_state(__func__, fs);
return (0);
}
}
/*
* Don't have a session, or it doesn't have this pane. Try all
* sessions.
*/
fs->w = wp->window;
if (cmd_find_best_session_with_window(fs) != 0) {
if (wp != NULL) {
/*
* The window may have been destroyed but the pane
* still on all_window_panes due to something else
* holding a reference.
*/
goto unknown_pane;
}
cmd_find_clear_state(fs, 0);
return (-1);
}
fs->wl = fs->s->curw;
fs->w = fs->wl->window;
fs->wp = fs->w->active; /* use active pane */
cmd_find_log_state(__func__, fs);
return (0);
unknown_pane:
/*
* We're not running in a known pane, but maybe this client has TMUX
* in the environment. That'd give us a session.
*/
s = cmd_find_try_TMUX(c);
if (s != NULL) {
cmd_find_from_session(fs, s, flags);
return (0);
}
/* Otherwise we need to guess. */
return (cmd_find_from_nothing(fs, flags));
}
/*
* Split target into pieces and resolve for the given type. Fills in the given
* state. Returns 0 on success or -1 on error.
*/
int
cmd_find_target(struct cmd_find_state *fs, struct cmdq_item *item,
const char *target, enum cmd_find_type type, int flags)
{
struct mouse_event *m;
struct cmd_find_state current;
char *colon, *period, *copy = NULL;
const char *session, *window, *pane, *s;
int window_only = 0, pane_only = 0;
/* Can fail flag implies quiet. */
if (flags & CMD_FIND_CANFAIL)
flags |= CMD_FIND_QUIET;
/* Log the arguments. */
if (type == CMD_FIND_PANE)
s = "pane";
else if (type == CMD_FIND_WINDOW)
s = "window";
else if (type == CMD_FIND_SESSION)
s = "session";
else
s = "unknown";
if (target == NULL)
log_debug("%s: target none, type %s", __func__, s);
else
log_debug("%s: target %s, type %s", __func__, target, s);
log_debug("%s: item %p, flags %#x", __func__, item, flags);
/* Clear new state. */
cmd_find_clear_state(fs, flags);
/* Find current state. */
if (server_check_marked() && (flags & CMD_FIND_DEFAULT_MARKED)) {
fs->current = &marked_pane;
log_debug("%s: current is marked pane", __func__);
} else if (cmd_find_valid_state(&item->shared->current)) {
fs->current = &item->shared->current;
log_debug("%s: current is from queue", __func__);
} else if (cmd_find_from_client(¤t, item->client, flags) == 0) {
fs->current = ¤t;
log_debug("%s: current is from client", __func__);
} else {
if (~flags & CMD_FIND_QUIET)
cmdq_error(item, "no current target");
goto error;
}
if (!cmd_find_valid_state(fs->current))
fatalx("invalid current find state");