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 <stdlib.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * Unbind key from command.
  27  */
  28
  29 enum cmd_retval  cmd_unbind_key_check(struct args *);
  30 enum cmd_retval  cmd_unbind_key_exec(struct cmd *, struct cmd_q *);
  31 enum cmd_retval  cmd_unbind_key_table(struct cmd *, struct cmd_q *, int);
  32
  33 const struct cmd_entry cmd_unbind_key_entry = {
  34         "unbind-key", "unbind",
  35         "acnt:", 0, 1,
  36         "[-acn] [-t key-table] key",
  37         0,
  38         NULL,
  39         cmd_unbind_key_check,
  40         cmd_unbind_key_exec
  41 };
  42
  43 enum cmd_retval
  44 cmd_unbind_key_check(struct args *args)
  45 {
  46         if (args_has(args, 'a') && args->argc != 0)
  47                 return (CMD_RETURN_ERROR);
  48         if (!args_has(args, 'a') && args->argc != 1)
  49                 return (CMD_RETURN_ERROR);
  50         return (CMD_RETURN_NORMAL);
  51 }
  52
  53 enum cmd_retval
  54 cmd_unbind_key_exec(struct cmd *self, struct cmd_q *cmdq)
  55 {
  56         struct args             *args = self->args;
  57         struct key_binding      *bd;
  58         int                      key;
  59
  60         if (!args_has(args, 'a')) {
  61                 key = key_string_lookup_string(args->argv[0]);
  62                 if (key == KEYC_NONE) {
  63                         cmdq_error(cmdq, "unknown key: %s", args->argv[0]);
  64                         return (CMD_RETURN_ERROR);
  65                 }
  66         } else
  67                 key = KEYC_NONE;
  68
  69         if (args_has(args, 't'))
  70                 return (cmd_unbind_key_table(self, cmdq, key));
  71
  72         if (key == KEYC_NONE) {
  73                 while (!RB_EMPTY(&key_bindings)) {
  74                         bd = RB_ROOT(&key_bindings);
  75                         key_bindings_remove(bd->key);
  76                 }
  77                 return (CMD_RETURN_NORMAL);
  78         }
  79
  80         if (!args_has(args, 'n'))
  81                 key |= KEYC_PREFIX;
  82         key_bindings_remove(key);
  83         return (CMD_RETURN_NORMAL);
  84 }
  85
  86 enum cmd_retval
  87 cmd_unbind_key_table(struct cmd *self, struct cmd_q *cmdq, int key)
  88 {
  89         struct args                     *args = self->args;
  90         const char                      *tablename;
  91         const struct mode_key_table     *mtab;
  92         struct mode_key_binding         *mbind, mtmp;
  93
  94         tablename = args_get(args, 't');
  95         if ((mtab = mode_key_findtable(tablename)) == NULL) {
  96                 cmdq_error(cmdq, "unknown key table: %s", tablename);
  97                 return (CMD_RETURN_ERROR);
  98         }
  99
 100         if (key == KEYC_NONE) {
 101                 while (!RB_EMPTY(mtab->tree)) {
 102                         mbind = RB_ROOT(mtab->tree);
 103                         RB_REMOVE(mode_key_tree, mtab->tree, mbind);
 104                         free(mbind);
 105                 }
 106                 return (CMD_RETURN_NORMAL);
 107         }
 108
 109         mtmp.key = key;
 110         mtmp.mode = !!args_has(args, 'c');
 111         if ((mbind = RB_FIND(mode_key_tree, mtab->tree, &mtmp)) != NULL) {
 112                 RB_REMOVE(mode_key_tree, mtab->tree, mbind);
 113                 free(mbind);
 114         }
 115         return (CMD_RETURN_NORMAL);
 116 }