cmd-unbind-key.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 "tmux.h"
  22
  23 /*
  24  * Unbind key from command.
  25  */
  26
  27 int     cmd_unbind_key_check(struct args *);
  28 int     cmd_unbind_key_exec(struct cmd *, struct cmd_ctx *);
  29
  30 int     cmd_unbind_key_table(struct cmd *, struct cmd_ctx *, int);
  31
  32 const struct cmd_entry cmd_unbind_key_entry = {
  33         "unbind-key", "unbind",
  34         "acnt:", 0, 1,
  35         "[-acn] [-t key-table] key",
  36         0,
  37         NULL,
  38         cmd_unbind_key_check,
  39         cmd_unbind_key_exec
  40 };
  41
  42 int
  43 cmd_unbind_key_check(struct args *args)
  44 {
  45         if (args_has(args, 'a') && (args->argc != 0 || args_has(args, 't')))
  46             return (-1);
  47         if (!args_has(args, 'a') && args->argc != 1)
  48                 return (-1);
  49         return (0);
  50 }
  51
  52 int
  53 cmd_unbind_key_exec(struct cmd *self, unused struct cmd_ctx *ctx)
  54 {
  55         struct args             *args = self->args;
  56         struct key_binding      *bd;
  57         int                      key;
  58
  59         if (args_has(args, 'a')) {
  60                 while (!RB_EMPTY(&key_bindings)) {
  61                         bd = RB_ROOT(&key_bindings);
  62                         key_bindings_remove(bd->key);
  63                 }
  64                 return (0);
  65         }
  66
  67         key = key_string_lookup_string(args->argv[0]);
  68         if (key == KEYC_NONE) {
  69                 ctx->error(ctx, "unknown key: %s", args->argv[0]);
  70                 return (-1);
  71         }
  72
  73         if (args_has(args, 't'))
  74                 return (cmd_unbind_key_table(self, ctx, key));
  75
  76         if (!args_has(args, 'n'))
  77                 key |= KEYC_PREFIX;
  78         key_bindings_remove(key);
  79         return (0);
  80 }
  81
  82 int
  83 cmd_unbind_key_table(struct cmd *self, struct cmd_ctx *ctx, int key)
  84 {
  85         struct args                     *args = self->args;
  86         const char                      *tablename;
  87         const struct mode_key_table     *mtab;
  88         struct mode_key_binding         *mbind, mtmp;
  89
  90         tablename = args_get(args, 't');
  91         if ((mtab = mode_key_findtable(tablename)) == NULL) {
  92                 ctx->error(ctx, "unknown key table: %s", tablename);
  93                 return (-1);
  94         }
  95
  96         mtmp.key = key;
  97         mtmp.mode = !!args_has(args, 'c');
  98         if ((mbind = RB_FIND(mode_key_tree, mtab->tree, &mtmp)) != NULL) {
  99                 RB_REMOVE(mode_key_tree, mtab->tree, mbind);
 100                 xfree(mbind);
 101         }
 102         return (0);
 103 }