Return to cmd-display-panes.c CVS log

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When adding a list of commands to the queue, instead of automatically
creating a new state for each group of commands, require the caller to
create one and use it for all the commands in the list. This means the
current target works even with list with multiple groups (which can
happen if they are defined with newlines).

/* $OpenBSD: cmd-display-panes.c,v 1.32 2020/04/13 15:55:51 nicm Exp $ */

/*
 * 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 <stdlib.h>
#include <string.h>

#include "tmux.h"

/*
 * Display panes on a client.
 */

static enum cmd_retval	cmd_display_panes_exec(struct cmd *,
			    struct cmdq_item *);

const struct cmd_entry cmd_display_panes_entry = {
	.name = "display-panes",
	.alias = "displayp",

	.args = { "bd:t:", 0, 1 },
	.usage = "[-b] [-d duration] " CMD_TARGET_CLIENT_USAGE " [template]",

	.flags = CMD_AFTERHOOK,
	.exec = cmd_display_panes_exec
};

struct cmd_display_panes_data {
	struct cmdq_item	*item;
	char			*command;
};

static void
cmd_display_panes_draw_pane(struct screen_redraw_ctx *ctx,
    struct window_pane *wp)
{
	struct client		*c = ctx->c;
	struct tty		*tty = &c->tty;
	struct session		*s = c->session;
	struct options		*oo = s->options;
	struct window		*w = wp->window;
	struct grid_cell	 gc;
	u_int			 idx, px, py, i, j, xoff, yoff, sx, sy;
	int			 colour, active_colour;
	char			 buf[16], *ptr;
	size_t			 len;

	if (wp->xoff + wp->sx <= ctx->ox ||
	    wp->xoff >= ctx->ox + ctx->sx ||
	    wp->yoff + wp->sy <= ctx->oy ||
	    wp->yoff >= ctx->oy + ctx->sy)
		return;

	if (wp->xoff >= ctx->ox && wp->xoff + wp->sx <= ctx->ox + ctx->sx) {
		/* All visible. */
		xoff = wp->xoff - ctx->ox;
		sx = wp->sx;
	} else if (wp->xoff < ctx->ox &&
	    wp->xoff + wp->sx > ctx->ox + ctx->sx) {
		/* Both left and right not visible. */
		xoff = 0;
		sx = ctx->sx;
	} else if (wp->xoff < ctx->ox) {
		/* Left not visible. */
		xoff = 0;
		sx = wp->sx - (ctx->ox - wp->xoff);
	} else {
		/* Right not visible. */
		xoff = wp->xoff - ctx->ox;
		sx = wp->sx - xoff;
	}
	if (wp->yoff >= ctx->oy && wp->yoff + wp->sy <= ctx->oy + ctx->sy) {
		/* All visible. */
		yoff = wp->yoff - ctx->oy;
		sy = wp->sy;
	} else if (wp->yoff < ctx->oy &&
	    wp->yoff + wp->sy > ctx->oy + ctx->sy) {
		/* Both top and bottom not visible. */
		yoff = 0;
		sy = ctx->sy;
	} else if (wp->yoff < ctx->oy) {
		/* Top not visible. */
		yoff = 0;
		sy = wp->sy - (ctx->oy - wp->yoff);
	} else {
		/* Bottom not visible. */
		yoff = wp->yoff - ctx->oy;
		sy = wp->sy - yoff;
	}

	if (ctx->statustop)
		yoff += ctx->statuslines;
	px = sx / 2;
	py = sy / 2;

	if (window_pane_index(wp, &idx) != 0)
		fatalx("index not found");
	len = xsnprintf(buf, sizeof buf, "%u", idx);

	if (sx < len)
		return;
	colour = options_get_number(oo, "display-panes-colour");
	active_colour = options_get_number(oo, "display-panes-active-colour");

	if (sx < len * 6 || sy < 5) {
		tty_cursor(tty, xoff + px - len / 2, yoff + py);
		goto draw_text;
	}

	px -= len * 3;
	py -= 2;

	memcpy(&gc, &grid_default_cell, sizeof gc);
	if (w->active == wp)
		gc.bg = active_colour;
	else
		gc.bg = colour;
	gc.flags |= GRID_FLAG_NOPALETTE;

	tty_attributes(tty, &gc, wp);
	for (ptr = buf; *ptr != '\0'; ptr++) {
		if (*ptr < '0' || *ptr > '9')
			continue;
		idx = *ptr - '0';

		for (j = 0; j < 5; j++) {
			for (i = px; i < px + 5; i++) {
				tty_cursor(tty, xoff + i, yoff + py + j);
				if (window_clock_table[idx][j][i - px])
					tty_putc(tty, ' ');
			}
		}
		px += 6;
	}

	len = xsnprintf(buf, sizeof buf, "%ux%u", wp->sx, wp->sy);
	if (sx < len || sy < 6)
		return;
	tty_cursor(tty, xoff + sx - len, yoff);

draw_text:
	memcpy(&gc, &grid_default_cell, sizeof gc);
	if (w->active == wp)
		gc.fg = active_colour;
	else
		gc.fg = colour;
	gc.flags |= GRID_FLAG_NOPALETTE;

	tty_attributes(tty, &gc, wp);
	tty_puts(tty, buf);

	tty_cursor(tty, 0, 0);
}

static void
cmd_display_panes_draw(struct client *c, struct screen_redraw_ctx *ctx)
{
	struct window		*w = c->session->curw->window;
	struct window_pane	*wp;

	log_debug("%s: %s @%u", __func__, c->name, w->id);

	TAILQ_FOREACH(wp, &w->panes, entry) {
		if (window_pane_visible(wp))
			cmd_display_panes_draw_pane(ctx, wp);
	}
}

static void
cmd_display_panes_free(struct client *c)
{
	struct cmd_display_panes_data	*cdata = c->overlay_data;

	if (cdata->item != NULL)
		cmdq_continue(cdata->item);
	free(cdata->command);
	free(cdata);
}

static int
cmd_display_panes_key(struct client *c, struct key_event *event)
{
	struct cmd_display_panes_data	*cdata = c->overlay_data;
	struct cmdq_item		*new_item;
	char				*cmd, *expanded;
	struct window			*w = c->session->curw->window;
	struct window_pane		*wp;
	struct cmd_parse_result		*pr;

	if (event->key < '0' || event->key > '9')
		return (-1);

	wp = window_pane_at_index(w, event->key - '0');
	if (wp == NULL)
		return (1);
	window_unzoom(w);

	xasprintf(&expanded, "%%%u", wp->id);
	cmd = cmd_template_replace(cdata->command, expanded, 1);

	pr = cmd_parse_from_string(cmd, NULL);
	switch (pr->status) {
	case CMD_PARSE_EMPTY:
		new_item = NULL;
		break;
	case CMD_PARSE_ERROR:
		new_item = cmdq_get_error(pr->error);
		free(pr->error);
		cmdq_append(c, new_item);
		break;
	case CMD_PARSE_SUCCESS:
		new_item = cmdq_get_command(pr->cmdlist, NULL);
		cmd_list_free(pr->cmdlist);
		cmdq_append(c, new_item);
		break;
	}

	free(cmd);
	free(expanded);
	return (1);
}

static enum cmd_retval
cmd_display_panes_exec(struct cmd *self, struct cmdq_item *item)
{
	struct args			*args = cmd_get_args(self);
	struct client			*c;
	struct session			*s;
	u_int		 		 delay;
	char				*cause;
	struct cmd_display_panes_data	*cdata;

	if ((c = cmd_find_client(item, args_get(args, 't'), 0)) == NULL)
		return (CMD_RETURN_ERROR);
	s = c->session;

	if (c->overlay_draw != NULL)
		return (CMD_RETURN_NORMAL);

	if (args_has(args, 'd')) {
		delay = args_strtonum(args, 'd', 0, UINT_MAX, &cause);
		if (cause != NULL) {
			cmdq_error(item, "delay %s", cause);
			free(cause);
			return (CMD_RETURN_ERROR);
		}
	} else
		delay = options_get_number(s->options, "display-panes-time");

	cdata = xmalloc(sizeof *cdata);
	if (args->argc != 0)
		cdata->command = xstrdup(args->argv[0]);
	else
		cdata->command = xstrdup("select-pane -t '%%'");
	if (args_has(args, 'b'))
		cdata->item = NULL;
	else
		cdata->item = item;

	server_client_set_overlay(c, delay, NULL, NULL, cmd_display_panes_draw,
	    cmd_display_panes_key, cmd_display_panes_free, cdata);

	if (args_has(args, 'b'))
		return (CMD_RETURN_NORMAL);
	return (CMD_RETURN_WAIT);
}