Return to cmd-find-window.c CVS log

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Rewrite of the target resolution internals to be simpler and more
consistent but with much less duplication, but keeping the same internal
API. Also adds more readable aliases for some of the special tokens used
in targets (eg "{start}" instead of "^"). Some behaviours may have
changed, for example prefix matches now happen before fnmatch.

/* $OpenBSD: cmd-find-window.c,v 1.32 2015/04/27 16:25:57 nicm Exp $ */

/*
 * Copyright (c) 2009 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 <stdlib.h>
#include <string.h>

#include "tmux.h"

/*
 * Find window containing text.
 */

#define FIND_WINDOW_TEMPLATE					\
	"#{window_index}: #{window_name} "			\
	"[#{window_width}x#{window_height}] "			\
	"(#{window_panes} panes) #{window_find_matches}"

enum cmd_retval	 cmd_find_window_exec(struct cmd *, struct cmd_q *);

void	cmd_find_window_callback(struct window_choose_data *);

/* Flags for determining matching behavior. */
#define CMD_FIND_WINDOW_BY_TITLE   0x1
#define CMD_FIND_WINDOW_BY_CONTENT 0x2
#define CMD_FIND_WINDOW_BY_NAME    0x4

#define CMD_FIND_WINDOW_ALL		\
	(CMD_FIND_WINDOW_BY_TITLE |	\
	 CMD_FIND_WINDOW_BY_CONTENT |	\
	 CMD_FIND_WINDOW_BY_NAME)

const struct cmd_entry cmd_find_window_entry = {
	"find-window", "findw",
	"F:CNt:T", 1, 4,
	"[-CNT] [-F format] " CMD_TARGET_WINDOW_USAGE " match-string",
	0,
	cmd_find_window_exec
};

struct cmd_find_window_data {
	struct winlink	*wl;
	char		*list_ctx;
	u_int		 pane_id;
};
ARRAY_DECL(cmd_find_window_data_list, struct cmd_find_window_data);

u_int	cmd_find_window_match_flags(struct args *);
void	cmd_find_window_match(struct cmd_find_window_data_list *, int,
	    struct winlink *, const char *, const char *);

u_int
cmd_find_window_match_flags(struct args *args)
{
	u_int	match_flags = 0;

	/* Turn on flags based on the options. */
	if (args_has(args, 'T'))
		match_flags |= CMD_FIND_WINDOW_BY_TITLE;
	if (args_has(args, 'C'))
		match_flags |= CMD_FIND_WINDOW_BY_CONTENT;
	if (args_has(args, 'N'))
		match_flags |= CMD_FIND_WINDOW_BY_NAME;

	/* If none of the flags were set, default to matching anything. */
	if (match_flags == 0)
		match_flags = CMD_FIND_WINDOW_ALL;

	return (match_flags);
}

void
cmd_find_window_match(struct cmd_find_window_data_list *find_list,
    int match_flags, struct winlink *wl, const char *str,
    const char *searchstr)
{
	struct cmd_find_window_data	 find_data;
	struct window_pane		*wp;
	u_int				 i, line;
	char				*sres;

	memset(&find_data, 0, sizeof find_data);

	i = 0;
	TAILQ_FOREACH(wp, &wl->window->panes, entry) {
		i++;

		if ((match_flags & CMD_FIND_WINDOW_BY_NAME) &&
		    fnmatch(searchstr, wl->window->name, 0) == 0) {
			find_data.list_ctx = xstrdup("");
			break;
		}

		if ((match_flags & CMD_FIND_WINDOW_BY_TITLE) &&
		    fnmatch(searchstr, wp->base.title, 0) == 0) {
			xasprintf(&find_data.list_ctx,
			    "pane %u title: \"%s\"", i - 1, wp->base.title);
			break;
		}

		if (match_flags & CMD_FIND_WINDOW_BY_CONTENT &&
		    (sres = window_pane_search(wp, str, &line)) != NULL) {
			xasprintf(&find_data.list_ctx,
			    "pane %u line %u: \"%s\"", i - 1, line + 1, sres);
			free(sres);
			break;
		}
	}
	if (find_data.list_ctx != NULL) {
		find_data.wl = wl;
		find_data.pane_id = i - 1;
		ARRAY_ADD(find_list, find_data);
	}
}

enum cmd_retval
cmd_find_window_exec(struct cmd *self, struct cmd_q *cmdq)
{
	struct args			*args = self->args;
	struct client			*c;
	struct window_choose_data	*cdata;
	struct session			*s;
	struct winlink			*wl, *wm;
	struct cmd_find_window_data_list find_list;
	char				*str, *searchstr;
	const char			*template;
	u_int				 i, match_flags;

	if ((c = cmd_find_client(cmdq, NULL, 1)) == NULL) {
		cmdq_error(cmdq, "no client available");
		return (CMD_RETURN_ERROR);
	}
	s = c->session;

	if ((wl = cmd_find_window(cmdq, args_get(args, 't'), NULL)) == NULL)
		return (CMD_RETURN_ERROR);

	if ((template = args_get(args, 'F')) == NULL)
		template = FIND_WINDOW_TEMPLATE;

	match_flags = cmd_find_window_match_flags(args);
	str = args->argv[0];

	ARRAY_INIT(&find_list);

	xasprintf(&searchstr, "*%s*", str);
	RB_FOREACH(wm, winlinks, &s->windows)
	    cmd_find_window_match(&find_list, match_flags, wm, str, searchstr);
	free(searchstr);

	if (ARRAY_LENGTH(&find_list) == 0) {
		cmdq_error(cmdq, "no windows matching: %s", str);
		ARRAY_FREE(&find_list);
		return (CMD_RETURN_ERROR);
	}

	if (ARRAY_LENGTH(&find_list) == 1) {
		if (session_select(s, ARRAY_FIRST(&find_list).wl->idx) == 0)
			server_redraw_session(s);
		recalculate_sizes();
		goto out;
	}

	if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
		goto out;

	for (i = 0; i < ARRAY_LENGTH(&find_list); i++) {
		wm = ARRAY_ITEM(&find_list, i).wl;

		cdata = window_choose_data_create(TREE_OTHER, c, c->session);
		cdata->idx = wm->idx;
		cdata->wl = wm;

		cdata->ft_template = xstrdup(template);
		cdata->pane_id = ARRAY_ITEM(&find_list, i).pane_id;

		format_add(cdata->ft, "line", "%u", i);
		format_add(cdata->ft, "window_find_matches", "%s",
		    ARRAY_ITEM(&find_list, i).list_ctx);
		format_defaults(cdata->ft, NULL, s, wm, NULL);

		window_choose_add(wl->window->active, cdata);
	}

	window_choose_ready(wl->window->active, 0, cmd_find_window_callback);

out:
	for (i = 0; i < ARRAY_LENGTH(&find_list); i++)
		free(ARRAY_ITEM(&find_list, i).list_ctx);
	ARRAY_FREE(&find_list);
	return (CMD_RETURN_NORMAL);
}

void
cmd_find_window_callback(struct window_choose_data *cdata)
{
	struct session		*s;
	struct window_pane	*wp;

	if (cdata == NULL)
		return;

	s = cdata->start_session;
	if (!session_alive(s))
		return;

	wp = window_pane_at_index(cdata->wl->window, cdata->pane_id);
	if (wp != NULL && window_pane_visible(wp))
		window_set_active_pane(cdata->wl->window, wp);

	if (session_select(s, cdata->idx) == 0) {
		server_redraw_session(s);
		recalculate_sizes();
	}
}