xref: /minix/external/bsd/tmux/dist/cmd-bind-key.c (revision e3b78ef1)
1 /* $Id: cmd-bind-key.c,v 1.1.1.2 2011/08/17 18:40:03 jmmv 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 <string.h>
22 
23 #include "tmux.h"
24 
25 /*
26  * Bind a key to a command, this recurses through cmd_*.
27  */
28 
29 int	cmd_bind_key_check(struct args *);
30 int	cmd_bind_key_exec(struct cmd *, struct cmd_ctx *);
31 
32 int	cmd_bind_key_table(struct cmd *, struct cmd_ctx *, int);
33 
34 const struct cmd_entry cmd_bind_key_entry = {
35 	"bind-key", "bind",
36 	"cnrt:", 1, -1,
37 	"[-cnr] [-t key-table] key command [arguments]",
38 	0,
39 	NULL,
40 	cmd_bind_key_check,
41 	cmd_bind_key_exec
42 };
43 
44 int
45 cmd_bind_key_check(struct args *args)
46 {
47 	if (args_has(args, 't')) {
48 		if (args->argc != 2)
49 			return (-1);
50 	} else {
51 		if (args->argc < 2)
52 			return (-1);
53 	}
54 	return (0);
55 }
56 
57 int
58 cmd_bind_key_exec(struct cmd *self, struct cmd_ctx *ctx)
59 {
60 	struct args	*args = self->args;
61 	char		*cause;
62 	struct cmd_list	*cmdlist;
63 	int		 key;
64 
65 	key = key_string_lookup_string(args->argv[0]);
66 	if (key == KEYC_NONE) {
67 		ctx->error(ctx, "unknown key: %s", args->argv[0]);
68 		return (-1);
69 	}
70 
71 	if (args_has(args, 't'))
72 		return (cmd_bind_key_table(self, ctx, key));
73 
74 	cmdlist = cmd_list_parse(args->argc - 1, args->argv + 1, &cause);
75 	if (cmdlist == NULL) {
76 		ctx->error(ctx, "%s", cause);
77 		xfree(cause);
78 		return (-1);
79 	}
80 
81 	if (!args_has(args, 'n'))
82 	    key |= KEYC_PREFIX;
83 	key_bindings_add(key, args_has(args, 'r'), cmdlist);
84 	return (0);
85 }
86 
87 int
88 cmd_bind_key_table(struct cmd *self, struct cmd_ctx *ctx, int key)
89 {
90 	struct args			*args = self->args;
91 	const char			*tablename;
92 	const struct mode_key_table	*mtab;
93 	struct mode_key_binding		*mbind, mtmp;
94 	enum mode_key_cmd		 cmd;
95 
96 	tablename = args_get(args, 't');
97 	if ((mtab = mode_key_findtable(tablename)) == NULL) {
98 		ctx->error(ctx, "unknown key table: %s", tablename);
99 		return (-1);
100 	}
101 
102 	cmd = mode_key_fromstring(mtab->cmdstr, args->argv[1]);
103 	if (cmd == MODEKEY_NONE) {
104 		ctx->error(ctx, "unknown command: %s", args->argv[1]);
105 		return (-1);
106 	}
107 
108 	mtmp.key = key;
109 	mtmp.mode = !!args_has(args, 'c');
110 	if ((mbind = SPLAY_FIND(mode_key_tree, mtab->tree, &mtmp)) != NULL) {
111 		mbind->cmd = cmd;
112 		return (0);
113 	}
114 	mbind = xmalloc(sizeof *mbind);
115 	mbind->key = mtmp.key;
116 	mbind->mode = mtmp.mode;
117 	mbind->cmd = cmd;
118 	SPLAY_INSERT(mode_key_tree, mtab->tree, mbind);
119 	return (0);
120 }
121