cmd-display-message.c

   1 /* $OpenBSD$ */
   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 enum cmd_retval  cmd_display_message_exec(struct cmd *, struct cmd_q *);
  31
  32 const struct cmd_entry cmd_display_message_entry = {
  33         "display-message", "display",
  34         "c:pt:F:", 0, 1,
  35         "[-p] [-c target-client] [-F format] " CMD_TARGET_PANE_USAGE
  36         " [message]",
  37         0,
  38         NULL,
  39         NULL,
  40         cmd_display_message_exec
  41 };
  42
  43 enum cmd_retval
  44 cmd_display_message_exec(struct cmd *self, struct cmd_q *cmdq)
  45 {
  46         struct args             *args = self->args;
  47         struct client           *c;
  48         struct session          *s;
  49         struct winlink          *wl;
  50         struct window_pane      *wp;
  51         const char              *template;
  52         char                    *msg;
  53         struct format_tree      *ft;
  54         char                     out[BUFSIZ];
  55         time_t                   t;
  56         size_t                   len;
  57
  58         if (args_has(args, 't')) {
  59                 wl = cmd_find_pane(cmdq, args_get(args, 't'), &s, &wp);
  60                 if (wl == NULL)
  61                         return (CMD_RETURN_ERROR);
  62         } else {
  63                 wl = cmd_find_pane(cmdq, NULL, &s, &wp);
  64                 if (wl == NULL)
  65                         return (CMD_RETURN_ERROR);
  66         }
  67
  68         if (args_has(args, 'F') && args->argc != 0) {
  69                 cmdq_error(cmdq, "only one of -F or argument must be given");
  70                 return (CMD_RETURN_ERROR);
  71         }
  72
  73         if (args_has(args, 'c')) {
  74             c = cmd_find_client(cmdq, args_get(args, 'c'), 0);
  75             if (c == NULL)
  76                 return (CMD_RETURN_ERROR);
  77         } else {
  78                 c = cmd_current_client(cmdq);
  79                 if (c == NULL && !args_has(self->args, 'p')) {
  80                         cmdq_error(cmdq, "no client available");
  81                         return (CMD_RETURN_ERROR);
  82                 }
  83         }
  84
  85         template = args_get(args, 'F');
  86         if (args->argc != 0)
  87                 template = args->argv[0];
  88         if (template == NULL)
  89                 template = DISPLAY_MESSAGE_TEMPLATE;
  90
  91         ft = format_create();
  92         if (c != NULL)
  93                 format_client(ft, c);
  94         format_session(ft, s);
  95         format_winlink(ft, s, wl);
  96         format_window_pane(ft, wp);
  97
  98         t = time(NULL);
  99         len = strftime(out, sizeof out, template, localtime(&t));
 100         out[len] = '\0';
 101
 102         msg = format_expand(ft, out);
 103         if (args_has(self->args, 'p'))
 104                 cmdq_print(cmdq, "%s", msg);
 105         else
 106                 status_message_set(c, "%s", msg);
 107         free(msg);
 108         format_free(ft);
 109
 110         return (CMD_RETURN_NORMAL);
 111 }