cmd-list-keys.c

   1 /* $Id: cmd-list-keys.c,v 1.24 2009-12-04 22:14:47 tcunha 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  * List key bindings.
  27  */
  28
  29 int     cmd_list_keys_exec(struct cmd *, struct cmd_ctx *);
  30
  31 int     cmd_list_keys_table(struct cmd *, struct cmd_ctx *);
  32
  33 const struct cmd_entry cmd_list_keys_entry = {
  34         "list-keys", "lsk",
  35         "[-t key-table]",
  36         0, "",
  37         cmd_target_init,
  38         cmd_target_parse,
  39         cmd_list_keys_exec,
  40         cmd_target_free,
  41         cmd_target_print
  42 };
  43
  44 int
  45 cmd_list_keys_exec(struct cmd *self, struct cmd_ctx *ctx)
  46 {
  47         struct cmd_target_data  *data = self->data;
  48         struct key_binding      *bd;
  49         const char              *key;
  50         char                     tmp[BUFSIZ];
  51         size_t                   used;
  52         int                      width, keywidth;
  53
  54         if (data->target != NULL)
  55                 return (cmd_list_keys_table(self, ctx));
  56
  57         width = 0;
  58         SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
  59                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  60                 if (key == NULL)
  61                         continue;
  62
  63                 keywidth = strlen(key) + 1;
  64                 if (!(bd->key & KEYC_PREFIX))
  65                         keywidth += 2;
  66                 if (keywidth > width)
  67                         width = keywidth;
  68         }
  69
  70         SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
  71                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  72                 if (key == NULL)
  73                         continue;
  74                 used = xsnprintf(tmp, sizeof tmp, "%*s: ", width, key);
  75                 if (used >= sizeof tmp)
  76                         continue;
  77
  78                 if (!(bd->key & KEYC_PREFIX)) {
  79                         used = strlcat(tmp, "(no prefix) ", sizeof tmp);
  80                         if (used >= sizeof tmp)
  81                                 continue;
  82                 }
  83                 cmd_list_print(bd->cmdlist, tmp + used, (sizeof tmp) - used);
  84                 ctx->print(ctx, "%s", tmp);
  85         }
  86
  87         return (0);
  88 }
  89
  90 int
  91 cmd_list_keys_table(struct cmd *self, struct cmd_ctx *ctx)
  92 {
  93         struct cmd_target_data          *data = self->data;
  94         const struct mode_key_table     *mtab;
  95         struct mode_key_binding         *mbind;
  96         const char                      *key, *cmdstr, *mode;
  97         int                              width, keywidth;
  98
  99         if ((mtab = mode_key_findtable(data->target)) == NULL) {
 100                 ctx->error(ctx, "unknown key table: %s", data->target);
 101                 return (-1);
 102         }
 103
 104         width = 0;
 105         SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
 106                 key = key_string_lookup_key(mbind->key);
 107                 if (key == NULL)
 108                         continue;
 109
 110                 keywidth = strlen(key) + 1;
 111                 if (keywidth > width)
 112                         width = keywidth;
 113         }
 114
 115         SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
 116                 key = key_string_lookup_key(mbind->key);
 117                 if (key == NULL)
 118                         continue;
 119
 120                 mode = "";
 121                 if (mbind->mode != 0)
 122                         mode = "(command mode) ";
 123                 cmdstr = mode_key_tostring(mtab->cmdstr, mbind->cmd);
 124                 if (cmdstr != NULL)
 125                         ctx->print(ctx, "%*s: %s%s", width, key, mode, cmdstr);
 126         }
 127
 128         return (0);
 129 }