1 /* $OpenBSD: cmd-unbind-key.c,v 1.29 2016/10/16 19:04:05 nicm Exp $ */ 2 3 /* 4 * Copyright (c) 2007 Nicholas Marriott <nicholas.marriott@gmail.com> 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 static enum cmd_retval cmd_unbind_key_exec(struct cmd *, struct cmdq_item *); 30 31 static enum cmd_retval cmd_unbind_key_mode_table(struct cmd *, 32 struct cmdq_item *, key_code); 33 34 const struct cmd_entry cmd_unbind_key_entry = { 35 .name = "unbind-key", 36 .alias = "unbind", 37 38 .args = { "ant:T:", 0, 1 }, 39 .usage = "[-an] [-t mode-table] [-T key-table] key", 40 41 .flags = CMD_AFTERHOOK, 42 .exec = cmd_unbind_key_exec 43 }; 44 45 static enum cmd_retval 46 cmd_unbind_key_exec(struct cmd *self, struct cmdq_item *item) 47 { 48 struct args *args = self->args; 49 key_code key; 50 const char *tablename; 51 52 if (!args_has(args, 'a')) { 53 if (args->argc != 1) { 54 cmdq_error(item, "missing key"); 55 return (CMD_RETURN_ERROR); 56 } 57 key = key_string_lookup_string(args->argv[0]); 58 if (key == KEYC_NONE || key == KEYC_UNKNOWN) { 59 cmdq_error(item, "unknown key: %s", args->argv[0]); 60 return (CMD_RETURN_ERROR); 61 } 62 } else { 63 if (args->argc != 0) { 64 cmdq_error(item, "key given with -a"); 65 return (CMD_RETURN_ERROR); 66 } 67 key = KEYC_UNKNOWN; 68 } 69 70 if (args_has(args, 't')) 71 return (cmd_unbind_key_mode_table(self, item, key)); 72 73 if (key == KEYC_UNKNOWN) { 74 tablename = args_get(args, 'T'); 75 if (tablename == NULL) { 76 key_bindings_remove_table("root"); 77 key_bindings_remove_table("prefix"); 78 return (CMD_RETURN_NORMAL); 79 } 80 if (key_bindings_get_table(tablename, 0) == NULL) { 81 cmdq_error(item, "table %s doesn't exist", tablename); 82 return (CMD_RETURN_ERROR); 83 } 84 key_bindings_remove_table(tablename); 85 return (CMD_RETURN_NORMAL); 86 } 87 88 if (args_has(args, 'T')) { 89 tablename = args_get(args, 'T'); 90 if (key_bindings_get_table(tablename, 0) == NULL) { 91 cmdq_error(item, "table %s doesn't exist", tablename); 92 return (CMD_RETURN_ERROR); 93 } 94 } else if (args_has(args, 'n')) 95 tablename = "root"; 96 else 97 tablename = "prefix"; 98 key_bindings_remove(tablename, key); 99 return (CMD_RETURN_NORMAL); 100 } 101 102 static enum cmd_retval 103 cmd_unbind_key_mode_table(struct cmd *self, struct cmdq_item *item, 104 key_code key) 105 { 106 struct args *args = self->args; 107 const char *tablename; 108 const struct mode_key_table *mtab; 109 struct mode_key_binding *mbind, mtmp; 110 111 tablename = args_get(args, 't'); 112 if ((mtab = mode_key_findtable(tablename)) == NULL) { 113 cmdq_error(item, "unknown key table: %s", tablename); 114 return (CMD_RETURN_ERROR); 115 } 116 117 if (key == KEYC_UNKNOWN) { 118 while (!RB_EMPTY(mtab->tree)) { 119 mbind = RB_ROOT(mtab->tree); 120 RB_REMOVE(mode_key_tree, mtab->tree, mbind); 121 free(mbind); 122 } 123 return (CMD_RETURN_NORMAL); 124 } 125 126 mtmp.key = key; 127 if ((mbind = RB_FIND(mode_key_tree, mtab->tree, &mtmp)) != NULL) { 128 RB_REMOVE(mode_key_tree, mtab->tree, mbind); 129 free(mbind); 130 } 131 return (CMD_RETURN_NORMAL); 132 } 133