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Annotation of src/usr.bin/tmux/cmd-bind-key.c, Revision 1.2

1.2     ! nicm        1: /* $OpenBSD: cmd-bind-key.c,v 1.1 2009/06/01 22:58:49 nicm Exp $ */
1.1       nicm        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 "tmux.h"
                     22:
                     23: /*
                     24:  * Bind a key to a command, this recurses through cmd_*.
                     25:  */
                     26:
                     27: int    cmd_bind_key_parse(struct cmd *, int, char **, char **);
                     28: int    cmd_bind_key_exec(struct cmd *, struct cmd_ctx *);
                     29: void   cmd_bind_key_send(struct cmd *, struct buffer *);
                     30: void   cmd_bind_key_recv(struct cmd *, struct buffer *);
                     31: void   cmd_bind_key_free(struct cmd *);
                     32: size_t cmd_bind_key_print(struct cmd *, char *, size_t);
                     33:
                     34: struct cmd_bind_key_data {
                     35:        int              key;
                     36:        int              can_repeat;
                     37:        struct cmd_list *cmdlist;
                     38: };
                     39:
                     40: const struct cmd_entry cmd_bind_key_entry = {
                     41:        "bind-key", "bind",
                     42:        "[-r] key command [arguments]",
1.2     ! nicm       43:        0, 0,
1.1       nicm       44:        NULL,
                     45:        cmd_bind_key_parse,
                     46:        cmd_bind_key_exec,
                     47:        cmd_bind_key_send,
                     48:        cmd_bind_key_recv,
                     49:        cmd_bind_key_free,
                     50:        cmd_bind_key_print
                     51: };
                     52:
                     53: int
                     54: cmd_bind_key_parse(struct cmd *self, int argc, char **argv, char **cause)
                     55: {
                     56:        struct cmd_bind_key_data        *data;
                     57:        int                              opt;
                     58:
                     59:        self->data = data = xmalloc(sizeof *data);
                     60:        data->can_repeat = 0;
                     61:        data->cmdlist = NULL;
                     62:
                     63:        while ((opt = getopt(argc, argv, "r")) != -1) {
                     64:                switch (opt) {
                     65:                case 'r':
                     66:                        data->can_repeat = 1;
                     67:                        break;
                     68:                default:
                     69:                        goto usage;
                     70:                }
                     71:        }
                     72:        argc -= optind;
                     73:        argv += optind;
                     74:        if (argc < 1)
                     75:                goto usage;
                     76:
                     77:        if ((data->key = key_string_lookup_string(argv[0])) == KEYC_NONE) {
                     78:                xasprintf(cause, "unknown key: %s", argv[0]);
                     79:                goto error;
                     80:        }
                     81:
                     82:        argc--;
                     83:        argv++;
                     84:        if ((data->cmdlist = cmd_list_parse(argc, argv, cause)) == NULL)
                     85:                goto error;
                     86:
                     87:        return (0);
                     88:
                     89: usage:
                     90:        xasprintf(cause, "usage: %s %s", self->entry->name, self->entry->usage);
                     91:
                     92: error:
                     93:        self->entry->free(self);
                     94:        return (-1);
                     95: }
                     96:
                     97: int
                     98: cmd_bind_key_exec(struct cmd *self, unused struct cmd_ctx *ctx)
                     99: {
                    100:        struct cmd_bind_key_data        *data = self->data;
                    101:
                    102:        if (data == NULL)
                    103:                return (0);
                    104:
                    105:        key_bindings_add(data->key, data->can_repeat, data->cmdlist);
                    106:        data->cmdlist = NULL;   /* avoid free */
                    107:
                    108:        return (0);
                    109: }
                    110:
                    111: void
                    112: cmd_bind_key_send(struct cmd *self, struct buffer *b)
                    113: {
                    114:        struct cmd_bind_key_data        *data = self->data;
                    115:
                    116:        buffer_write(b, data, sizeof *data);
                    117:        cmd_list_send(data->cmdlist, b);
                    118: }
                    119:
                    120: void
                    121: cmd_bind_key_recv(struct cmd *self, struct buffer *b)
                    122: {
                    123:        struct cmd_bind_key_data        *data;
                    124:
                    125:        self->data = data = xmalloc(sizeof *data);
                    126:        buffer_read(b, data, sizeof *data);
                    127:        data->cmdlist = cmd_list_recv(b);
                    128: }
                    129:
                    130: void
                    131: cmd_bind_key_free(struct cmd *self)
                    132: {
                    133:        struct cmd_bind_key_data        *data = self->data;
                    134:
                    135:        if (data->cmdlist != NULL)
                    136:                cmd_list_free(data->cmdlist);
                    137:        xfree(data);
                    138: }
                    139:
                    140: size_t
                    141: cmd_bind_key_print(struct cmd *self, char *buf, size_t len)
                    142: {
                    143:        struct cmd_bind_key_data        *data = self->data;
                    144:        size_t                           off = 0;
                    145:        const char                      *skey;
                    146:
                    147:        off += xsnprintf(buf, len, "%s", self->entry->name);
                    148:        if (data == NULL)
                    149:                return (off);
                    150:        if (off < len) {
                    151:                skey = key_string_lookup_key(data->key);
                    152:                off += xsnprintf(buf + off, len - off, " %s ", skey);
                    153:        }
                    154:        if (off < len)
                    155:                off += cmd_list_print(data->cmdlist, buf + off, len - off);
                    156:        return (off);
                    157: }