1 /* $OpenBSD: cmd-display-message.c,v 1.55 2020/07/27 08:03:10 nicm Exp $ */ 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 <sys/types.h> 20 21 #include <stdlib.h> 22 #include <time.h> 23 24 #include "tmux.h" 25 26 /* 27 * Displays a message in the status line. 28 */ 29 30 #define DISPLAY_MESSAGE_TEMPLATE \ 31 "[#{session_name}] #{window_index}:" \ 32 "#{window_name}, current pane #{pane_index} " \ 33 "- (%H:%M %d-%b-%y)" 34 35 static enum cmd_retval cmd_display_message_exec(struct cmd *, 36 struct cmdq_item *); 37 38 const struct cmd_entry cmd_display_message_entry = { 39 .name = "display-message", 40 .alias = "display", 41 42 .args = { "acd:Ipt:F:v", 0, 1 }, 43 .usage = "[-aIpv] [-c target-client] [-d delay] [-F format] " 44 CMD_TARGET_PANE_USAGE " [message]", 45 46 .target = { 't', CMD_FIND_PANE, 0 }, 47 48 .flags = CMD_AFTERHOOK|CMD_CLIENT_CFLAG|CMD_CLIENT_CANFAIL, 49 .exec = cmd_display_message_exec 50 }; 51 52 static void 53 cmd_display_message_each(const char *key, const char *value, void *arg) 54 { 55 struct cmdq_item *item = arg; 56 57 cmdq_print(item, "%s=%s", key, value); 58 } 59 60 static enum cmd_retval 61 cmd_display_message_exec(struct cmd *self, struct cmdq_item *item) 62 { 63 struct args *args = cmd_get_args(self); 64 struct cmd_find_state *target = cmdq_get_target(item); 65 struct client *tc = cmdq_get_target_client(item), *c; 66 struct session *s = target->s; 67 struct winlink *wl = target->wl; 68 struct window_pane *wp = target->wp; 69 const char *template; 70 char *msg, *cause; 71 int delay = -1; 72 struct format_tree *ft; 73 int flags; 74 75 if (args_has(args, 'I')) { 76 if (window_pane_start_input(wp, item, &cause) != 0) { 77 cmdq_error(item, "%s", cause); 78 free(cause); 79 return (CMD_RETURN_ERROR); 80 } 81 return (CMD_RETURN_WAIT); 82 } 83 84 if (args_has(args, 'F') && args->argc != 0) { 85 cmdq_error(item, "only one of -F or argument must be given"); 86 return (CMD_RETURN_ERROR); 87 } 88 89 if (args_has(args, 'd')) { 90 delay = args_strtonum(args, 'd', 0, UINT_MAX, &cause); 91 if (cause != NULL) { 92 cmdq_error(item, "delay %s", cause); 93 free(cause); 94 return (CMD_RETURN_ERROR); 95 } 96 } 97 98 template = args_get(args, 'F'); 99 if (args->argc != 0) 100 template = args->argv[0]; 101 if (template == NULL) 102 template = DISPLAY_MESSAGE_TEMPLATE; 103 104 /* 105 * -c is intended to be the client where the message should be 106 * displayed if -p is not given. But it makes sense to use it for the 107 * formats too, assuming it matches the session. If it doesn't, use the 108 * best client for the session. 109 */ 110 if (tc != NULL && tc->session == s) 111 c = tc; 112 else 113 c = cmd_find_best_client(s); 114 if (args_has(args, 'v')) 115 flags = FORMAT_VERBOSE; 116 else 117 flags = 0; 118 ft = format_create(cmdq_get_client(item), item, FORMAT_NONE, flags); 119 format_defaults(ft, c, s, wl, wp); 120 121 if (args_has(args, 'a')) { 122 format_each(ft, cmd_display_message_each, item); 123 return (CMD_RETURN_NORMAL); 124 } 125 126 msg = format_expand_time(ft, template); 127 if (args_has(args, 'p')) 128 cmdq_print(item, "%s", msg); 129 else if (tc != NULL) 130 status_message_set(tc, delay, 0, "%s", msg); 131 free(msg); 132 133 format_free(ft); 134 135 return (CMD_RETURN_NORMAL); 136 } 137