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], flags[8];
  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         *flags = '\0';
  58
  59         SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
  60                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  61                 if (key == NULL)
  62                         continue;
  63
  64                 keywidth = strlen(key);
  65                 if (!(bd->key & KEYC_PREFIX)) {
  66                         if (bd->can_repeat)
  67                                 keywidth += 4;
  68                         else
  69                                 keywidth += 3;
  70                 } else if (bd->can_repeat)
  71                         keywidth += 3;
  72                 if (keywidth > width)
  73                         width = keywidth;
  74         }
  75
  76         SPLAY_FOREACH(bd, key_bindings, &key_bindings) {
  77                 key = key_string_lookup_key(bd->key & ~KEYC_PREFIX);
  78                 if (key == NULL)
  79                         continue;
  80
  81                 if (!(bd->key & KEYC_PREFIX)) {
  82                         if (bd->can_repeat)
  83                                 xsnprintf(flags, sizeof flags, "-rn ");
  84                         else
  85                                 xsnprintf(flags, sizeof flags, "-n ");
  86                 } else if (bd->can_repeat)
  87                         xsnprintf(flags, sizeof flags, "-r ");
  88
  89                 used = xsnprintf(tmp, sizeof tmp, "%s%*s ",
  90                     flags, (int) (width - strlen(flags)), key);
  91                 if (used >= sizeof tmp)
  92                         continue;
  93
  94                 cmd_list_print(bd->cmdlist, tmp + used, (sizeof tmp) - used);
  95                 ctx->print(ctx, "bind-key %s", tmp);
  96         }
  97
  98         return (0);
  99 }
 100
 101 int
 102 cmd_list_keys_table(struct cmd *self, struct cmd_ctx *ctx)
 103 {
 104         struct args                     *args = self->args;
 105         const char                      *tablename;
 106         const struct mode_key_table     *mtab;
 107         struct mode_key_binding         *mbind;
 108         const char                      *key, *cmdstr, *mode;
 109         int                              width, keywidth, any_mode;
 110
 111         tablename = args_get(args, 't');
 112         if ((mtab = mode_key_findtable(tablename)) == NULL) {
 113                 ctx->error(ctx, "unknown key table: %s", tablename);
 114                 return (-1);
 115         }
 116
 117         width = 0;
 118         any_mode = 0;
 119         SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
 120                 key = key_string_lookup_key(mbind->key);
 121                 if (key == NULL)
 122                         continue;
 123
 124                 if (mbind->mode != 0)
 125                         any_mode = 1;
 126
 127                 keywidth = strlen(key);
 128                 if (keywidth > width)
 129                         width = keywidth;
 130         }
 131
 132         SPLAY_FOREACH(mbind, mode_key_tree, mtab->tree) {
 133                 key = key_string_lookup_key(mbind->key);
 134                 if (key == NULL)
 135                         continue;
 136
 137                 mode = "";
 138                 if (mbind->mode != 0)
 139                         mode = "c";
 140                 cmdstr = mode_key_tostring(mtab->cmdstr, mbind->cmd);
 141                 if (cmdstr != NULL) {
 142                         ctx->print(ctx, "bind-key -%st %s%s %*s %s",
 143                             mode, any_mode && *mode == '\0' ? " " : "",
 144                             mtab->name, (int) width, key, cmdstr);
 145                 }
 146         }
 147
 148         return (0);
 149 }