cmd-bind-key.c revision 1.24 
1/* $OpenBSD: cmd-bind-key.c,v 1.24 2015/12/13 21:53:57 nicm Exp $ */
2
3/*
4 * Copyright (c) 2007 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#include <string.h>
23
24#include "tmux.h"
25
26/*
27 * Bind a key to a command, this recurses through cmd_*.
28 */
29
30enum cmd_retval	 cmd_bind_key_exec(struct cmd *, struct cmd_q *);
31
32enum cmd_retval	 cmd_bind_key_mode_table(struct cmd *, struct cmd_q *,
33		     key_code);
34
35const struct cmd_entry cmd_bind_key_entry = {
36	.name = "bind-key",
37	.alias = "bind",
38
39	.args = { "cnrt:T:", 1, -1 },
40	.usage = "[-cnr] [-t mode-table] [-T key-table] key command "
41		 "[arguments]",
42
43	.flags = 0,
44	.exec = cmd_bind_key_exec
45};
46
47enum cmd_retval
48cmd_bind_key_exec(struct cmd *self, struct cmd_q *cmdq)
49{
50	struct args	*args = self->args;
51	char		*cause;
52	struct cmd_list	*cmdlist;
53	key_code	 key;
54	const char	*tablename;
55
56	if (args_has(args, 't')) {
57		if (args->argc != 2 && args->argc != 3) {
58			cmdq_error(cmdq, "not enough arguments");
59			return (CMD_RETURN_ERROR);
60		}
61	} else {
62		if (args->argc < 2) {
63			cmdq_error(cmdq, "not enough arguments");
64			return (CMD_RETURN_ERROR);
65		}
66	}
67
68	key = key_string_lookup_string(args->argv[0]);
69	if (key == KEYC_NONE || key == KEYC_UNKNOWN) {
70		cmdq_error(cmdq, "unknown key: %s", args->argv[0]);
71		return (CMD_RETURN_ERROR);
72	}
73
74	if (args_has(args, 't'))
75		return (cmd_bind_key_mode_table(self, cmdq, key));
76
77	if (args_has(args, 'T'))
78		tablename = args_get(args, 'T');
79	else if (args_has(args, 'n'))
80		tablename = "root";
81	else
82		tablename = "prefix";
83
84	cmdlist = cmd_list_parse(args->argc - 1, args->argv + 1, NULL, 0,
85	    &cause);
86	if (cmdlist == NULL) {
87		cmdq_error(cmdq, "%s", cause);
88		free(cause);
89		return (CMD_RETURN_ERROR);
90	}
91
92	key_bindings_add(tablename, key, args_has(args, 'r'), cmdlist);
93	return (CMD_RETURN_NORMAL);
94}
95
96enum cmd_retval
97cmd_bind_key_mode_table(struct cmd *self, struct cmd_q *cmdq, key_code key)
98{
99	struct args			*args = self->args;
100	const char			*tablename;
101	const struct mode_key_table	*mtab;
102	struct mode_key_binding		*mbind, mtmp;
103	enum mode_key_cmd		 cmd;
104	const char			*arg;
105
106	tablename = args_get(args, 't');
107	if ((mtab = mode_key_findtable(tablename)) == NULL) {
108		cmdq_error(cmdq, "unknown key table: %s", tablename);
109		return (CMD_RETURN_ERROR);
110	}
111
112	cmd = mode_key_fromstring(mtab->cmdstr, args->argv[1]);
113	if (cmd == MODEKEY_NONE) {
114		cmdq_error(cmdq, "unknown command: %s", args->argv[1]);
115		return (CMD_RETURN_ERROR);
116	}
117
118	switch (cmd) {
119	case MODEKEYCOPY_APPENDSELECTION:
120	case MODEKEYCOPY_COPYSELECTION:
121	case MODEKEYCOPY_STARTNAMEDBUFFER:
122		if (args->argc == 2)
123			arg = NULL;
124		else {
125			arg = args->argv[2];
126			if (strcmp(arg, "-x") != 0) {
127				cmdq_error(cmdq, "unknown argument");
128				return (CMD_RETURN_ERROR);
129			}
130		}
131		break;
132	case MODEKEYCOPY_COPYPIPE:
133		if (args->argc != 3) {
134			cmdq_error(cmdq, "no argument given");
135			return (CMD_RETURN_ERROR);
136		}
137		arg = args->argv[2];
138		break;
139	default:
140		if (args->argc != 2) {
141			cmdq_error(cmdq, "no argument allowed");
142			return (CMD_RETURN_ERROR);
143		}
144		arg = NULL;
145		break;
146	}
147
148	mtmp.key = key;
149	mtmp.mode = !!args_has(args, 'c');
150	if ((mbind = RB_FIND(mode_key_tree, mtab->tree, &mtmp)) == NULL) {
151		mbind = xmalloc(sizeof *mbind);
152		mbind->key = mtmp.key;
153		mbind->mode = mtmp.mode;
154		RB_INSERT(mode_key_tree, mtab->tree, mbind);
155	}
156	mbind->cmd = cmd;
157	mbind->arg = arg != NULL ? xstrdup(arg) : NULL;
158	return (CMD_RETURN_NORMAL);
159}
160