cmd-choose-session.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2009 Nicholas Marriott <nicm@users.sourceforge.net>
   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 <ctype.h>
  22
  23 #include "tmux.h"
  24
  25 /*
  26  * Enter choice mode to choose a session.
  27  */
  28
  29 int     cmd_choose_session_exec(struct cmd *, struct cmd_ctx *);
  30
  31 void    cmd_choose_session_callback(void *, int);
  32 void    cmd_choose_session_free(void *);
  33
  34 const struct cmd_entry cmd_choose_session_entry = {
  35         "choose-session", NULL,
  36         CMD_TARGET_WINDOW_USAGE " [template]",
  37         CMD_ARG01, "",
  38         cmd_target_init,
  39         cmd_target_parse,
  40         cmd_choose_session_exec,
  41         cmd_target_free,
  42         cmd_target_print
  43 };
  44
  45 struct cmd_choose_session_data {
  46         struct client   *client;
  47         char            *template;
  48 };
  49
  50 int
  51 cmd_choose_session_exec(struct cmd *self, struct cmd_ctx *ctx)
  52 {
  53         struct cmd_target_data          *data = self->data;
  54         struct cmd_choose_session_data  *cdata;
  55         struct winlink                  *wl;
  56         struct session                  *s;
  57         struct session_group            *sg;
  58         u_int                            i, idx, cur;
  59         char                             tmp[64];
  60
  61         if (ctx->curclient == NULL) {
  62                 ctx->error(ctx, "must be run interactively");
  63                 return (-1);
  64         }
  65
  66         if ((wl = cmd_find_window(ctx, data->target, NULL)) == NULL)
  67                 return (-1);
  68
  69         if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
  70                 return (0);
  71
  72         cur = idx = 0;
  73         for (i = 0; i < ARRAY_LENGTH(&sessions); i++) {
  74                 s = ARRAY_ITEM(&sessions, i);
  75                 if (s == NULL)
  76                         continue;
  77                 if (s == ctx->curclient->session)
  78                         cur = idx;
  79                 idx++;
  80
  81                 sg = session_group_find(s);
  82                 if (sg == NULL)
  83                         *tmp = '\0';
  84                 else {
  85                         idx = session_group_index(sg);
  86                         xsnprintf(tmp, sizeof tmp, " (group %u)", idx);
  87                 }
  88
  89                 window_choose_add(wl->window->active, i,
  90                     "%s: %u windows [%ux%u]%s%s", s->name,
  91                     winlink_count(&s->windows), s->sx, s->sy,
  92                     tmp, s->flags & SESSION_UNATTACHED ? "" : " (attached)");
  93         }
  94
  95         cdata = xmalloc(sizeof *cdata);
  96         if (data->arg != NULL)
  97                 cdata->template = xstrdup(data->arg);
  98         else
  99                 cdata->template = xstrdup("switch-client -t '%%'");
 100         cdata->client = ctx->curclient;
 101         cdata->client->references++;
 102
 103         window_choose_ready(wl->window->active,
 104             cur, cmd_choose_session_callback, cmd_choose_session_free, cdata);
 105
 106         return (0);
 107 }
 108
 109 void
 110 cmd_choose_session_callback(void *data, int idx)
 111 {
 112         struct cmd_choose_session_data  *cdata = data;
 113         struct session                  *s;
 114         struct cmd_list                 *cmdlist;
 115         struct cmd_ctx                   ctx;
 116         char                            *template, *cause;
 117
 118         if (idx == -1)
 119                 return;
 120         if (cdata->client->flags & CLIENT_DEAD)
 121                 return;
 122
 123         if ((u_int) idx > ARRAY_LENGTH(&sessions) - 1)
 124                 return;
 125         s = ARRAY_ITEM(&sessions, idx);
 126         if (s == NULL)
 127                 return;
 128         template = cmd_template_replace(cdata->template, s->name, 1);
 129
 130         if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
 131                 if (cause != NULL) {
 132                         *cause = toupper((u_char) *cause);
 133                         status_message_set(cdata->client, "%s", cause);
 134                         xfree(cause);
 135                 }
 136                 xfree(template);
 137                 return;
 138         }
 139         xfree(template);
 140
 141         ctx.msgdata = NULL;
 142         ctx.curclient = cdata->client;
 143
 144         ctx.error = key_bindings_error;
 145         ctx.print = key_bindings_print;
 146         ctx.info = key_bindings_info;
 147
 148         ctx.cmdclient = NULL;
 149
 150         cmd_list_exec(cmdlist, &ctx);
 151         cmd_list_free(cmdlist);
 152 }
 153
 154 void
 155 cmd_choose_session_free(void *data)
 156 {
 157         struct cmd_choose_session_data  *cdata = data;
 158
 159         cdata->client->references--;
 160         xfree(cdata->template);
 161         xfree(cdata);
 162 }