path: root/cmd-find.c

/* $OpenBSD$ */

/*
 * Copyright (c) 2015 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 <fnmatch.h>
#include <limits.h>
#include <stdlib.h>
#include <string.h>
#include <paths.h>
#include <unistd.h>

#include "tmux.h"

#define CMD_FIND_PREFER_UNATTACHED 0x1
#define CMD_FIND_QUIET 0x2
#define CMD_FIND_WINDOW_INDEX 0x4
#define CMD_FIND_DEFAULT_MARKED 0x8
#define CMD_FIND_EXACT_SESSION 0x10
#define CMD_FIND_EXACT_WINDOW 0x20

enum cmd_find_type {
	CMD_FIND_PANE,
	CMD_FIND_WINDOW,
	CMD_FIND_SESSION,
};

struct cmd_find_state {
	struct cmd_q		*cmdq;
	int			 flags;
	struct cmd_find_state	*current;

	struct session          *s;
	struct winlink          *wl;
	struct window		*w;
	struct window_pane      *wp;
	int			 idx;
};

struct session	*cmd_find_try_TMUX(struct client *, struct window *);
int		 cmd_find_client_better(struct client *, struct client *);
struct client	*cmd_find_best_client(struct client **, u_int);
int		 cmd_find_session_better(struct session *, struct session *,
		     int);
struct session	*cmd_find_best_session(struct session **, u_int, int);
int		 cmd_find_best_session_with_window(struct cmd_find_state *);
int		 cmd_find_best_winlink_with_window(struct cmd_find_state *);

int		 cmd_find_current_session_with_client(struct cmd_find_state *);
int		 cmd_find_current_session(struct cmd_find_state *);
struct client	*cmd_find_current_client(struct cmd_q *);

const char	*cmd_find_map_table(const char *[][2], const char *);

int	cmd_find_get_session(struct cmd_find_state *, const char *);
int	cmd_find_get_window(struct cmd_find_state *, const char *);
int	cmd_find_get_window_with_session(struct cmd_find_state *, const char *);
int	cmd_find_get_window_with_pane(struct cmd_find_state *);
int	cmd_find_get_pane(struct cmd_find_state *, const char *);
int	cmd_find_get_pane_with_session(struct cmd_find_state *, const char *);
int	cmd_find_get_pane_with_window(struct cmd_find_state *, const char *);

void	cmd_find_clear_state(struct cmd_find_state *, struct cmd_q *, int);
void	cmd_find_log_state(const char *, const char *, struct cmd_find_state *);

struct cmd_find_state	*cmd_find_target(struct cmd_q *, const char *,
	    enum cmd_find_type, int);

const char *cmd_find_session_table[][2] = {
	{ NULL, NULL }
};
const char *cmd_find_window_table[][2] = {
	{ "{start}", "^" },
	{ "{last}", "!" },
	{ "{end}", "$" },
	{ "{next}", "+" },
	{ "{previous}", "-" },
	{ NULL, NULL }
};
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. */
struct session *
cmd_find_try_TMUX(struct client *c, struct window *w)
{
	struct environ_entry	*envent;
	char			 tmp[256];
	long long		 pid;
	u_int			 session;
	struct session		*s;

	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 is %s (session @%u)", c, envent->value,
	    session);

	s = session_find_by_id(session);
	if (s == NULL || (w != NULL && !session_has(s, w)))
		return (NULL);
	return (s);
}

/* Is this client better? */
int
cmd_find_client_better(struct client *c, struct client *than)
{
	if (than == NULL)
		return (1);
	return (timercmp(&c->activity_time, &a