1 /* Id */ 2 3 /* 4 * Copyright (c) 2009 Tiago Cunha <me@tiagocunha.org> 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 <ctype.h> 20 #include <stdlib.h> 21 #include <string.h> 22 23 #include "tmux.h" 24 25 /* 26 * Asks for confirmation before executing a command. 27 */ 28 29 void cmd_confirm_before_key_binding(struct cmd *, int); 30 enum cmd_retval cmd_confirm_before_exec(struct cmd *, struct cmd_q *); 31 32 int cmd_confirm_before_callback(void *, const char *); 33 void cmd_confirm_before_free(void *); 34 35 const struct cmd_entry cmd_confirm_before_entry = { 36 "confirm-before", "confirm", 37 "p:t:", 1, 1, 38 "[-p prompt] " CMD_TARGET_CLIENT_USAGE " command", 39 0, 40 cmd_confirm_before_key_binding, 41 cmd_confirm_before_exec 42 }; 43 44 struct cmd_confirm_before_data { 45 char *cmd; 46 struct client *client; 47 }; 48 49 void 50 cmd_confirm_before_key_binding(struct cmd *self, int key) 51 { 52 switch (key) { 53 case '&': 54 self->args = args_create(1, "kill-window"); 55 args_set(self->args, 'p', "kill-window #W? (y/n)"); 56 break; 57 case 'x': 58 self->args = args_create(1, "kill-pane"); 59 args_set(self->args, 'p', "kill-pane #P? (y/n)"); 60 break; 61 default: 62 self->args = args_create(0); 63 break; 64 } 65 } 66 67 enum cmd_retval 68 cmd_confirm_before_exec(struct cmd *self, struct cmd_q *cmdq) 69 { 70 struct args *args = self->args; 71 struct cmd_confirm_before_data *cdata; 72 struct client *c; 73 char *cmd, *copy, *new_prompt, *ptr; 74 const char *prompt; 75 76 if ((c = cmd_find_client(cmdq, args_get(args, 't'), 0)) == NULL) 77 return (CMD_RETURN_ERROR); 78 79 if ((prompt = args_get(args, 'p')) != NULL) 80 xasprintf(&new_prompt, "%s ", prompt); 81 else { 82 ptr = copy = xstrdup(args->argv[0]); 83 cmd = strsep(&ptr, " \t"); 84 xasprintf(&new_prompt, "Confirm '%s'? (y/n) ", cmd); 85 free(copy); 86 } 87 88 cdata = xmalloc(sizeof *cdata); 89 cdata->cmd = xstrdup(args->argv[0]); 90 91 cdata->client = c; 92 cdata->client->references++; 93 94 status_prompt_set(c, new_prompt, NULL, 95 cmd_confirm_before_callback, cmd_confirm_before_free, cdata, 96 PROMPT_SINGLE); 97 98 free(new_prompt); 99 return (CMD_RETURN_NORMAL); 100 } 101 102 int 103 cmd_confirm_before_callback(void *data, const char *s) 104 { 105 struct cmd_confirm_before_data *cdata = data; 106 struct client *c = cdata->client; 107 struct cmd_list *cmdlist; 108 char *cause; 109 110 if (c->flags & CLIENT_DEAD) 111 return (0); 112 113 if (s == NULL || *s == '\0') 114 return (0); 115 if (tolower((u_char) s[0]) != 'y' || s[1] != '\0') 116 return (0); 117 118 if (cmd_string_parse(cdata->cmd, &cmdlist, NULL, 0, &cause) != 0) { 119 if (cause != NULL) { 120 cmdq_error(c->cmdq, "%s", cause); 121 free(cause); 122 } 123 return (0); 124 } 125 126 cmdq_run(c->cmdq, cmdlist); 127 cmd_list_free(cmdlist); 128 129 return (0); 130 } 131 132 void 133 cmd_confirm_before_free(void *data) 134 { 135 struct cmd_confirm_before_data *cdata = data; 136 struct client *c = cdata->client; 137 138 c->references--; 139 140 free(cdata->cmd); 141 free(cdata); 142 } 143