GCC Code Coverage Report
Directory: ./ Exec Total Coverage
File: usr.bin/tmux/cmd-resize-pane.c Lines: 0 95 0.0 %
Date: 2017-11-07 Branches: 0 84 0.0 %

Line Branch Exec Source
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/* $OpenBSD: cmd-resize-pane.c,v 1.31 2017/05/11 07:24:42 nicm Exp $ */
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/*
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 * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
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 *
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 * Permission to use, copy, modify, and distribute this software for any
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 * purpose with or without fee is hereby granted, provided that the above
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 * copyright notice and this permission notice appear in all copies.
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 *
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 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
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 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
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 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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 */
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#include <sys/types.h>
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#include <stdlib.h>
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#include "tmux.h"
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/*
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 * Increase or decrease pane size.
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 */
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static enum cmd_retval	cmd_resize_pane_exec(struct cmd *, struct cmdq_item *);
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static void	cmd_resize_pane_mouse_update(struct client *,
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		    struct mouse_event *);
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const struct cmd_entry cmd_resize_pane_entry = {
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	.name = "resize-pane",
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	.alias = "resizep",
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	.args = { "DLMRt:Ux:y:Z", 0, 1 },
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	.usage = "[-DLMRUZ] [-x width] [-y height] " CMD_TARGET_PANE_USAGE " "
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		 "[adjustment]",
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	.target = { 't', CMD_FIND_PANE, 0 },
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	.flags = CMD_AFTERHOOK,
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	.exec = cmd_resize_pane_exec
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};
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static enum cmd_retval
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cmd_resize_pane_exec(struct cmd *self, struct cmdq_item *item)
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{
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	struct args		*args = self->args;
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	struct cmdq_shared	*shared = item->shared;
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	struct window_pane	*wp = item->target.wp;
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	struct winlink		*wl = item->target.wl;
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	struct window		*w = wl->window;
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	struct client		*c = item->client;
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	struct session		*s = item->target.s;
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	const char	       	*errstr;
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	char			*cause;
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	u_int			 adjust;
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	int			 x, y;
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	if (args_has(args, 'M')) {
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		if (cmd_mouse_window(&shared->mouse, &s) == NULL)
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			return (CMD_RETURN_NORMAL);
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		if (c == NULL || c->session != s)
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			return (CMD_RETURN_NORMAL);
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		c->tty.mouse_drag_update = cmd_resize_pane_mouse_update;
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		cmd_resize_pane_mouse_update(c, &shared->mouse);
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		return (CMD_RETURN_NORMAL);
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	}
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	if (args_has(args, 'Z')) {
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		if (w->flags & WINDOW_ZOOMED)
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			window_unzoom(w);
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		else
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			window_zoom(wp);
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		server_redraw_window(w);
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		server_status_window(w);
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		return (CMD_RETURN_NORMAL);
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	}
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	server_unzoom_window(w);
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	if (args->argc == 0)
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		adjust = 1;
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	else {
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		adjust = strtonum(args->argv[0], 1, INT_MAX, &errstr);
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		if (errstr != NULL) {
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			cmdq_error(item, "adjustment %s", errstr);
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			return (CMD_RETURN_ERROR);
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		}
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	}
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	if (args_has(self->args, 'x')) {
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		x = args_strtonum(self->args, 'x', PANE_MINIMUM, INT_MAX,
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		    &cause);
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		if (cause != NULL) {
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			cmdq_error(item, "width %s", cause);
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			free(cause);
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			return (CMD_RETURN_ERROR);
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		}
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		layout_resize_pane_to(wp, LAYOUT_LEFTRIGHT, x);
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	}
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	if (args_has(self->args, 'y')) {
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		y = args_strtonum(self->args, 'y', PANE_MINIMUM, INT_MAX,
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		    &cause);
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		if (cause != NULL) {
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			cmdq_error(item, "height %s", cause);
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			free(cause);
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			return (CMD_RETURN_ERROR);
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		}
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		layout_resize_pane_to(wp, LAYOUT_TOPBOTTOM, y);
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	}
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	if (args_has(self->args, 'L'))
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		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, -adjust, 1);
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	else if (args_has(self->args, 'R'))
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		layout_resize_pane(wp, LAYOUT_LEFTRIGHT, adjust, 1);
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	else if (args_has(self->args, 'U'))
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		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, -adjust, 1);
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	else if (args_has(self->args, 'D'))
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		layout_resize_pane(wp, LAYOUT_TOPBOTTOM, adjust, 1);
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	server_redraw_window(wl->window);
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	return (CMD_RETURN_NORMAL);
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}
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static void
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cmd_resize_pane_mouse_update(struct client *c, struct mouse_event *m)
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{
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	struct winlink		*wl;
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	struct window_pane	*loop, *wp_x, *wp_y;
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	u_int			 y, ly, x, lx, sx, sy, ex, ey;
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	wl = cmd_mouse_window(m, NULL);
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	if (wl == NULL) {
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		c->tty.mouse_drag_update = NULL;
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		return;
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	}
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	y = m->y; x = m->x;
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	if (m->statusat == 0 && y > 0)
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		y--;
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	else if (m->statusat > 0 && y >= (u_int)m->statusat)
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		y = m->statusat - 1;
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	ly = m->ly; lx = m->lx;
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	if (m->statusat == 0 && ly > 0)
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		ly--;
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	else if (m->statusat > 0 && ly >= (u_int)m->statusat)
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		ly = m->statusat - 1;
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	wp_x = wp_y = NULL;
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	TAILQ_FOREACH(loop, &wl->window->panes, entry) {
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		if (!window_pane_visible(loop))
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			continue;
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		sx = loop->xoff;
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		if (sx != 0)
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			sx--;
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		ex = loop->xoff + loop->sx;
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		sy = loop->yoff;
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		if (sy != 0)
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			sy--;
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		ey = loop->yoff + loop->sy;
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		if ((lx == sx || lx == ex) &&
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		    (ly >= sy && ly <= ey) &&
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		    (wp_x == NULL || loop->sy > wp_x->sy))
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			wp_x = loop;
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		if ((ly == sy || ly == ey) &&
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		    (lx >= sx && lx <= ex) &&
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		    (wp_y == NULL || loop->sx > wp_y->sx))
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			wp_y = loop;
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	}
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	if (wp_x == NULL && wp_y == NULL) {
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		c->tty.mouse_drag_update = NULL;
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		return;
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	}
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	if (wp_x != NULL)
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		layout_resize_pane(wp_x, LAYOUT_LEFTRIGHT, x - lx, 0);
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	if (wp_y != NULL)
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		layout_resize_pane(wp_y, LAYOUT_TOPBOTTOM, y - ly, 0);
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	server_redraw_window(wl->window);
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}