1 /* $OpenBSD$ */
2 
3 /*
4  * Copyright (c) 2011 George Nachman <tmux@georgester.com>
5  * Copyright (c) 2009 Nicholas Marriott <nicholas.marriott@gmail.com>
6  *
7  * Permission to use, copy, modify, and distribute this software for any
8  * purpose with or without fee is hereby granted, provided that the above
9  * copyright notice and this permission notice appear in all copies.
10  *
11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
18  */
19 
20 #include <sys/types.h>
21 
22 #include <stdlib.h>
23 #include <unistd.h>
24 
25 #include "tmux.h"
26 
27 /*
28  * Join or move a pane into another (like split/swap/kill).
29  */
30 
31 enum cmd_retval	 cmd_join_pane_exec(struct cmd *, struct cmd_q *);
32 
33 enum cmd_retval	 join_pane(struct cmd *, struct cmd_q *, int);
34 
35 const struct cmd_entry cmd_join_pane_entry = {
36 	.name = "join-pane",
37 	.alias = "joinp",
38 
39 	.args = { "bdhvp:l:s:t:", 0, 0 },
40 	.usage = "[-bdhv] [-p percentage|-l size] " CMD_SRCDST_PANE_USAGE,
41 
42 	.sflag = CMD_PANE_MARKED,
43 	.tflag = CMD_PANE,
44 
45 	.flags = 0,
46 	.exec = cmd_join_pane_exec
47 };
48 
49 const struct cmd_entry cmd_move_pane_entry = {
50 	.name = "move-pane",
51 	.alias = "movep",
52 
53 	.args = { "bdhvp:l:s:t:", 0, 0 },
54 	.usage = "[-bdhv] [-p percentage|-l size] " CMD_SRCDST_PANE_USAGE,
55 
56 	.sflag = CMD_PANE,
57 	.tflag = CMD_PANE,
58 
59 	.flags = 0,
60 	.exec = cmd_join_pane_exec
61 };
62 
63 enum cmd_retval
cmd_join_pane_exec(struct cmd * self,struct cmd_q * cmdq)64 cmd_join_pane_exec(struct cmd *self, struct cmd_q *cmdq)
65 {
66 	return (join_pane(self, cmdq, self->entry == &cmd_join_pane_entry));
67 }
68 
69 enum cmd_retval
join_pane(struct cmd * self,struct cmd_q * cmdq,int not_same_window)70 join_pane(struct cmd *self, struct cmd_q *cmdq, int not_same_window)
71 {
72 	struct args		*args = self->args;
73 	struct session		*dst_s;
74 	struct winlink		*src_wl, *dst_wl;
75 	struct window		*src_w, *dst_w;
76 	struct window_pane	*src_wp, *dst_wp;
77 	char			*cause;
78 	int			 size, percentage, dst_idx;
79 	enum layout_type	 type;
80 	struct layout_cell	*lc;
81 
82 	dst_s = cmdq->state.tflag.s;
83 	dst_wl = cmdq->state.tflag.wl;
84 	dst_wp = cmdq->state.tflag.wp;
85 	dst_w = dst_wl->window;
86 	dst_idx = dst_wl->idx;
87 	server_unzoom_window(dst_w);
88 
89 	src_wl = cmdq->state.sflag.wl;
90 	src_wp = cmdq->state.sflag.wp;
91 	src_w = src_wl->window;
92 	server_unzoom_window(src_w);
93 
94 	if (not_same_window && src_w == dst_w) {
95 		cmdq_error(cmdq, "can't join a pane to its own window");
96 		return (CMD_RETURN_ERROR);
97 	}
98 	if (!not_same_window && src_wp == dst_wp) {
99 		cmdq_error(cmdq, "source and target panes must be different");
100 		return (CMD_RETURN_ERROR);
101 	}
102 
103 	type = LAYOUT_TOPBOTTOM;
104 	if (args_has(args, 'h'))
105 		type = LAYOUT_LEFTRIGHT;
106 
107 	size = -1;
108 	if (args_has(args, 'l')) {
109 		size = args_strtonum(args, 'l', 0, INT_MAX, &cause);
110 		if (cause != NULL) {
111 			cmdq_error(cmdq, "size %s", cause);
112 			free(cause);
113 			return (CMD_RETURN_ERROR);
114 		}
115 	} else if (args_has(args, 'p')) {
116 		percentage = args_strtonum(args, 'p', 0, 100, &cause);
117 		if (cause != NULL) {
118 			cmdq_error(cmdq, "percentage %s", cause);
119 			free(cause);
120 			return (CMD_RETURN_ERROR);
121 		}
122 		if (type == LAYOUT_TOPBOTTOM)
123 			size = (dst_wp->sy * percentage) / 100;
124 		else
125 			size = (dst_wp->sx * percentage) / 100;
126 	}
127 	lc = layout_split_pane(dst_wp, type, size, args_has(args, 'b'), 0);
128 	if (lc == NULL) {
129 		cmdq_error(cmdq, "create pane failed: pane too small");
130 		return (CMD_RETURN_ERROR);
131 	}
132 
133 	layout_close_pane(src_wp);
134 
135 	window_lost_pane(src_w, src_wp);
136 	TAILQ_REMOVE(&src_w->panes, src_wp, entry);
137 
138 	src_wp->window = dst_w;
139 	TAILQ_INSERT_AFTER(&dst_w->panes, dst_wp, src_wp, entry);
140 	layout_assign_pane(lc, src_wp);
141 
142 	recalculate_sizes();
143 
144 	server_redraw_window(src_w);
145 	server_redraw_window(dst_w);
146 
147 	if (!args_has(args, 'd')) {
148 		window_set_active_pane(dst_w, src_wp);
149 		session_select(dst_s, dst_idx);
150 		server_redraw_session(dst_s);
151 	} else
152 		server_status_session(dst_s);
153 
154 	if (window_count_panes(src_w) == 0)
155 		server_kill_window(src_w);
156 	else
157 		notify_window_layout_changed(src_w);
158 	notify_window_layout_changed(dst_w);
159 
160 	return (CMD_RETURN_NORMAL);
161 }
162