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Annotation of src/usr.bin/tmux/cmd-display-message.c, Revision 1.48

1.48    ! nicm        1: /* $OpenBSD: cmd-display-message.c,v 1.47 2019/03/15 10:04:13 nicm Exp $ */
1.1       nicm        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:
1.14      nicm       21: #include <stdlib.h>
1.1       nicm       22: #include <time.h>
                     23:
                     24: #include "tmux.h"
                     25:
                     26: /*
                     27:  * Displays a message in the status line.
                     28:  */
1.26      nicm       29:
                     30: #define DISPLAY_MESSAGE_TEMPLATE                       \
                     31:        "[#{session_name}] #{window_index}:"            \
                     32:        "#{window_name}, current pane #{pane_index} "   \
                     33:        "- (%H:%M %d-%b-%y)"
1.1       nicm       34:
1.39      nicm       35: static enum cmd_retval cmd_display_message_exec(struct cmd *,
                     36:                            struct cmdq_item *);
1.1       nicm       37:
                     38: const struct cmd_entry cmd_display_message_entry = {
1.34      nicm       39:        .name = "display-message",
                     40:        .alias = "display",
                     41:
1.48    ! nicm       42:        .args = { "ac:pt:F:v", 0, 1 },
        !            43:        .usage = "[-apv] [-c target-client] [-F format] "
1.34      nicm       44:                 CMD_TARGET_PANE_USAGE " [message]",
                     45:
1.41      nicm       46:        .target = { 't', CMD_FIND_PANE, 0 },
1.35      nicm       47:
1.38      nicm       48:        .flags = CMD_AFTERHOOK,
1.34      nicm       49:        .exec = cmd_display_message_exec
1.1       nicm       50: };
                     51:
1.48    ! nicm       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:
1.37      nicm       60: static enum cmd_retval
1.39      nicm       61: cmd_display_message_exec(struct cmd *self, struct cmdq_item *item)
1.1       nicm       62: {
1.8       nicm       63:        struct args             *args = self->args;
1.43      nicm       64:        struct client           *c, *target_c;
1.41      nicm       65:        struct session          *s = item->target.s;
                     66:        struct winlink          *wl = item->target.wl;
                     67:        struct window_pane      *wp = item->target.wp;
1.1       nicm       68:        const char              *template;
                     69:        char                    *msg;
1.11      nicm       70:        struct format_tree      *ft;
1.47      nicm       71:        int                      flags;
1.1       nicm       72:
1.11      nicm       73:        if (args_has(args, 'F') && args->argc != 0) {
1.39      nicm       74:                cmdq_error(item, "only one of -F or argument must be given");
1.15      nicm       75:                return (CMD_RETURN_ERROR);
1.22      nicm       76:        }
                     77:
1.11      nicm       78:        template = args_get(args, 'F');
                     79:        if (args->argc != 0)
                     80:                template = args->argv[0];
                     81:        if (template == NULL)
1.16      nicm       82:                template = DISPLAY_MESSAGE_TEMPLATE;
1.1       nicm       83:
1.43      nicm       84:        /*
                     85:         * -c is intended to be the client where the message should be
                     86:         * displayed if -p is not given. But it makes sense to use it for the
                     87:         * formats too, assuming it matches the session. If it doesn't, use the
                     88:         * best client for the session.
                     89:         */
                     90:        c = cmd_find_client(item, args_get(args, 'c'), 1);
                     91:        if (c != NULL && c->session == s)
                     92:                target_c = c;
                     93:        else
                     94:                target_c = cmd_find_best_client(s);
1.47      nicm       95:        if (args_has(self->args, 'v'))
                     96:                flags = FORMAT_VERBOSE;
                     97:        else
                     98:                flags = 0;
                     99:        ft = format_create(item->client, item, FORMAT_NONE, flags);
1.43      nicm      100:        format_defaults(ft, target_c, s, wl, wp);
1.48    ! nicm      101:
        !           102:        if (args_has(args, 'a')) {
        !           103:                if (item != NULL)
        !           104:                        format_each(ft, cmd_display_message_each, item);
        !           105:                return (CMD_RETURN_NORMAL);
        !           106:        }
1.11      nicm      107:
1.46      nicm      108:        msg = format_expand_time(ft, template);
1.8       nicm      109:        if (args_has(self->args, 'p'))
1.39      nicm      110:                cmdq_print(item, "%s", msg);
1.44      nicm      111:        else if (c != NULL)
                    112:                status_message_set(c, "%s", msg);
1.14      nicm      113:        free(msg);
1.36      nicm      114:
1.12      nicm      115:        format_free(ft);
1.20      nicm      116:
1.15      nicm      117:        return (CMD_RETURN_NORMAL);
1.1       nicm      118: }