cmd-list-keys.c

   1 /* $OpenBSD$ */
   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:", 0, 0,
  36         "[-t key-table]",
  37         0,
  38         NULL,
  39         NULL,
  40         cmd_list_keys_exec
  41 };
  42
  43 int
  44 cmd_list_keys_exec(struct cmd *self, struct cmd_ctx *ctx)
  45 {
  46         struct args             *args = self->args;
  47         struct key_binding      *bd;
  48         const char              *key;
  49         char                     tmp[BUFSIZ];
  50         size_t                   used;
  51         int                      width, keywidth;
  52
  53         if (args_has(args, 't'))
  54                 return (cmd_list_keys_table(self, ctx));
  55
  56         width = 0;
  57         SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
  58                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  59                 if (key == NULL)
  60                         continue;
  61
  62                 keywidth = strlen(key) + 1;
  63                 if (!(bd->key & KEYC_PREFIX))
  64                         keywidth += 2;
  65                 if (keywidth > width)
  66                         width = keywidth;
  67         }
  68
  69         SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
  70                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  71                 if (key == NULL)
  72                         continue;
  73                 used = xsnprintf(tmp, sizeof tmp, "%*s: ", width, key);
  74                 if (used >= sizeof tmp)
  75                         continue;
  76
  77                 if (!(bd->key & KEYC_PREFIX)) {
  78                         used = strlcat(tmp, "(no prefix) ", sizeof tmp);
  79                         if (used >= sizeof tmp)
  80                                 continue;
  81                 }
  82                 if (bd->can_repeat) {
  83                         used = strlcat(tmp, "(repeat) ", sizeof tmp);
  84                         if (used >= sizeof tmp)
  85                                 continue;
  86                 }
  87                 cmd_list_print(bd->cmdlist, tmp + used, (sizeof tmp) - used);
  88                 ctx->print(ctx, "%s", tmp);
  89         }
  90
  91         return (0);
  92 }
  93
  94 int
  95 cmd_list_keys_table(struct cmd *self, struct cmd_ctx *ctx)
  96 {
  97         struct args                     *args = self->args;
  98         const char                      *tablename;
  99         const struct mode_key_table     *mtab;
 100         struct mode_key_binding         *mbind;
 101         const char                      *key, *cmdstr, *mode;
 102         int                              width, keywidth;
 103
 104         tablename = args_get(args, 't');
 105         if ((mtab = mode_key_findtable(tablename)) == NULL) {
 106                 ctx->error(ctx, "unknown key table: %s", tablename);
 107                 return (-1);
 108         }
 109
 110         width = 0;
 111         SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
 112                 key = key_string_lookup_key(mbind->key);
 113                 if (key == NULL)
 114                         continue;
 115
 116                 keywidth = strlen(key) + 1;
 117                 if (keywidth > width)
 118                         width = keywidth;
 119         }
 120
 121         SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
 122                 key = key_string_lookup_key(mbind->key);
 123                 if (key == NULL)
 124                         continue;
 125
 126                 mode = "";
 127                 if (mbind->mode != 0)
 128                         mode = "(command mode) ";
 129                 cmdstr = mode_key_tostring(mtab->cmdstr, mbind->cmd);
 130                 if (cmdstr != NULL)
 131                         ctx->print(ctx, "%*s: %s%s", width, key, mode, cmdstr);
 132         }
 133
 134         return (0);
 135 }