xref: /openbsd-src/usr.bin/tmux/cmd-swap-pane.c (revision 48950c12d106c85f315112191a0228d7b83b9510)
1 /* $OpenBSD: cmd-swap-pane.c,v 1.16 2013/03/24 09:57:59 nicm Exp $ */
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 void		 cmd_swap_pane_key_binding(struct cmd *, int);
30 enum cmd_retval	 cmd_swap_pane_exec(struct cmd *, struct cmd_q *);
31 
32 const struct cmd_entry cmd_swap_pane_entry = {
33 	"swap-pane", "swapp",
34 	"dDs:t:U", 0, 0,
35 	"[-dDU] " CMD_SRCDST_PANE_USAGE,
36 	0,
37 	cmd_swap_pane_key_binding,
38 	NULL,
39 	cmd_swap_pane_exec
40 };
41 
42 void
43 cmd_swap_pane_key_binding(struct cmd *self, int key)
44 {
45 	self->args = args_create(0);
46 	if (key == '{')
47 		args_set(self->args, 'U', NULL);
48 	else if (key == '}')
49 		args_set(self->args, 'D', NULL);
50 }
51 
52 enum cmd_retval
53 cmd_swap_pane_exec(struct cmd *self, struct cmd_q *cmdq)
54 {
55 	struct args		*args = self->args;
56 	struct winlink		*src_wl, *dst_wl;
57 	struct window		*src_w, *dst_w;
58 	struct window_pane	*tmp_wp, *src_wp, *dst_wp;
59 	struct layout_cell	*src_lc, *dst_lc;
60 	u_int			 sx, sy, xoff, yoff;
61 
62 	dst_wl = cmd_find_pane(cmdq, args_get(args, 't'), NULL, &dst_wp);
63 	if (dst_wl == NULL)
64 		return (CMD_RETURN_ERROR);
65 	dst_w = dst_wl->window;
66 	server_unzoom_window(dst_w);
67 
68 	if (!args_has(args, 's')) {
69 		src_w = dst_w;
70 		if (args_has(self->args, 'D')) {
71 			src_wp = TAILQ_NEXT(dst_wp, entry);
72 			if (src_wp == NULL)
73 				src_wp = TAILQ_FIRST(&dst_w->panes);
74 		} else if (args_has(self->args, 'U')) {
75 			src_wp = TAILQ_PREV(dst_wp, window_panes, entry);
76 			if (src_wp == NULL)
77 				src_wp = TAILQ_LAST(&dst_w->panes, window_panes);
78 		} else
79 			return (CMD_RETURN_NORMAL);
80 	} else {
81 		src_wl = cmd_find_pane(cmdq, args_get(args, 's'), NULL, &src_wp);
82 		if (src_wl == NULL)
83 			return (CMD_RETURN_ERROR);
84 		src_w = src_wl->window;
85 	}
86 	server_unzoom_window(src_w);
87 
88 	if (src_wp == dst_wp)
89 		return (CMD_RETURN_NORMAL);
90 
91 	tmp_wp = TAILQ_PREV(dst_wp, window_panes, entry);
92 	TAILQ_REMOVE(&dst_w->panes, dst_wp, entry);
93 	TAILQ_REPLACE(&src_w->panes, src_wp, dst_wp, entry);
94 	if (tmp_wp == src_wp)
95 		tmp_wp = dst_wp;
96 	if (tmp_wp == NULL)
97 		TAILQ_INSERT_HEAD(&dst_w->panes, src_wp, entry);
98 	else
99 		TAILQ_INSERT_AFTER(&dst_w->panes, tmp_wp, src_wp, entry);
100 
101 	src_lc = src_wp->layout_cell;
102 	dst_lc = dst_wp->layout_cell;
103 	src_lc->wp = dst_wp;
104 	dst_wp->layout_cell = src_lc;
105 	dst_lc->wp = src_wp;
106 	src_wp->layout_cell = dst_lc;
107 
108 	src_wp->window = dst_w;
109 	dst_wp->window = src_w;
110 
111 	sx = src_wp->sx; sy = src_wp->sy;
112 	xoff = src_wp->xoff; yoff = src_wp->yoff;
113 	src_wp->xoff = dst_wp->xoff; src_wp->yoff = dst_wp->yoff;
114 	window_pane_resize(src_wp, dst_wp->sx, dst_wp->sy);
115 	dst_wp->xoff = xoff; dst_wp->yoff = yoff;
116 	window_pane_resize(dst_wp, sx, sy);
117 
118 	if (!args_has(self->args, 'd')) {
119 		if (src_w != dst_w) {
120 			window_set_active_pane(src_w, dst_wp);
121 			window_set_active_pane(dst_w, src_wp);
122 		} else {
123 			tmp_wp = dst_wp;
124 			if (!window_pane_visible(tmp_wp))
125 				tmp_wp = src_wp;
126 			window_set_active_pane(src_w, tmp_wp);
127 		}
128 	} else {
129 		if (src_w->active == src_wp)
130 			window_set_active_pane(src_w, dst_wp);
131 		if (dst_w->active == dst_wp)
132 			window_set_active_pane(dst_w, src_wp);
133 	}
134 	if (src_w != dst_w) {
135 		if (src_w->last == src_wp)
136 			src_w->last = NULL;
137 		if (dst_w->last == dst_wp)
138 			dst_w->last = NULL;
139 	}
140 	server_redraw_window(src_w);
141 	server_redraw_window(dst_w);
142 
143 	return (CMD_RETURN_NORMAL);
144 }
145