xref: /netbsd-src/external/bsd/tmux/dist/cmd-swap-pane.c (revision d909946ca08dceb44d7d0f22ec9488679695d976)
1 /* $OpenBSD$ */
2 
3 /*
4  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
5  *
6  * Permission to use, copy, modify, and distribute this software for any
7  * purpose with or without fee is hereby granted, provided that the above
8  * copyright notice and this permission notice appear in all copies.
9  *
10  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
11  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
12  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
13  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
14  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
15  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
16  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
17  */
18 
19 #include <sys/types.h>
20 
21 #include <stdlib.h>
22 
23 #include "tmux.h"
24 
25 /*
26  * Swap two panes.
27  */
28 
29 enum cmd_retval	 cmd_swap_pane_exec(struct cmd *, struct cmd_q *);
30 
31 const struct cmd_entry cmd_swap_pane_entry = {
32 	"swap-pane", "swapp",
33 	"dDs:t:U", 0, 0,
34 	"[-dDU] " CMD_SRCDST_PANE_USAGE,
35 	0,
36 	cmd_swap_pane_exec
37 };
38 
39 enum cmd_retval
40 cmd_swap_pane_exec(struct cmd *self, struct cmd_q *cmdq)
41 {
42 	struct args		*args = self->args;
43 	struct winlink		*src_wl, *dst_wl;
44 	struct window		*src_w, *dst_w;
45 	struct window_pane	*tmp_wp, *src_wp, *dst_wp;
46 	struct layout_cell	*src_lc, *dst_lc;
47 	u_int			 sx, sy, xoff, yoff;
48 
49 	dst_wl = cmd_find_pane(cmdq, args_get(args, 't'), NULL, &dst_wp);
50 	if (dst_wl == NULL)
51 		return (CMD_RETURN_ERROR);
52 	dst_w = dst_wl->window;
53 	server_unzoom_window(dst_w);
54 
55 	if (!args_has(args, 's')) {
56 		src_w = dst_w;
57 		if (args_has(self->args, 'D')) {
58 			src_wp = TAILQ_NEXT(dst_wp, entry);
59 			if (src_wp == NULL)
60 				src_wp = TAILQ_FIRST(&dst_w->panes);
61 		} else if (args_has(self->args, 'U')) {
62 			src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
63 			if (src_wp == NULL)
64 				src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
65 		} else {
66 			src_wl = cmd_find_pane_marked(cmdq, NULL, NULL,
67 			    &src_wp);
68 			if (src_wl == NULL)
69 				return (CMD_RETURN_ERROR);
70 			src_w = src_wl->window;
71 		}
72 	} else {
73 		src_wl = cmd_find_pane_marked(cmdq, args_get(args, 's'), NULL,
74 		    &src_wp);
75 		if (src_wl == NULL)
76 			return (CMD_RETURN_ERROR);
77 		src_w = src_wl->window;
78 	}
79 	server_unzoom_window(src_w);
80 
81 	if (src_wp == dst_wp)
82 		return (CMD_RETURN_NORMAL);
83 
84 	tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
85 	TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
86 	TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
87 	if (tmp_wp == src_wp)
88 		tmp_wp = dst_wp;
89 	if (tmp_wp == NULL)
90 		TAILQ_INSERT_HEAD(&dst_w->panes, src_wp, entry);
91 	else
92 		TAILQ_INSERT_AFTER(&dst_w->panes, tmp_wp, src_wp, entry);
93 
94 	src_lc = src_wp->layout_cell;
95 	dst_lc = dst_wp->layout_cell;
96 	src_lc->wp = dst_wp;
97 	dst_wp->layout_cell = src_lc;
98 	dst_lc->wp = src_wp;
99 	src_wp->layout_cell = dst_lc;
100 
101 	src_wp->window = dst_w;
102 	dst_wp->window = src_w;
103 
104 	sx = src_wp->sx; sy = src_wp->sy;
105 	xoff = src_wp->xoff; yoff = src_wp->yoff;
106 	src_wp->xoff = dst_wp->xoff; src_wp->yoff = dst_wp->yoff;
107 	window_pane_resize(src_wp, dst_wp->sx, dst_wp->sy);
108 	dst_wp->xoff = xoff; dst_wp->yoff = yoff;
109 	window_pane_resize(dst_wp, sx, sy);
110 
111 	if (!args_has(self->args, 'd')) {
112 		if (src_w != dst_w) {
113 			window_set_active_pane(src_w, dst_wp);
114 			window_set_active_pane(dst_w, src_wp);
115 		} else {
116 			tmp_wp = dst_wp;
117 			if (!window_pane_visible(tmp_wp))
118 				tmp_wp = src_wp;
119 			window_set_active_pane(src_w, tmp_wp);
120 		}
121 	} else {
122 		if (src_w->active == src_wp)
123 			window_set_active_pane(src_w, dst_wp);
124 		if (dst_w->active == dst_wp)
125 			window_set_active_pane(dst_w, src_wp);
126 	}
127 	if (src_w != dst_w) {
128 		if (src_w->last == src_wp)
129 			src_w->last = NULL;
130 		if (dst_w->last == dst_wp)
131 			dst_w->last = NULL;
132 	}
133 	server_redraw_window(src_w);
134 	server_redraw_window(dst_w);
135 
136 	return (CMD_RETURN_NORMAL);
137 }
138