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         "t:", 0, 1,
  37         CMD_TARGET_WINDOW_USAGE " [template]",
  38         0,
  39         NULL,
  40         NULL,
  41         cmd_choose_session_exec
  42 };
  43
  44 struct cmd_choose_session_data {
  45         struct client   *client;
  46         char            *template;
  47 };
  48
  49 int
  50 cmd_choose_session_exec(struct cmd *self, struct cmd_ctx *ctx)
  51 {
  52         struct args                     *args = self->args;
  53         struct cmd_choose_session_data  *cdata;
  54         struct winlink                  *wl;
  55         struct session                  *s;
  56         struct session_group            *sg;
  57         u_int                            idx, sgidx, cur;
  58         char                             tmp[64];
  59
  60         if (ctx->curclient == NULL) {
  61                 ctx->error(ctx, "must be run interactively");
  62                 return (-1);
  63         }
  64
  65         if ((wl = cmd_find_window(ctx, args_get(args, 't'), NULL)) == NULL)
  66                 return (-1);
  67
  68         if (window_pane_set_mode(wl->window->active, &window_choose_mode) != 0)
  69                 return (0);
  70
  71         cur = idx = 0;
  72         RB_FOREACH(s, sessions, &sessions) {
  73                 if (s == ctx->curclient->session)
  74                         cur = idx;
  75                 idx++;
  76
  77                 sg = session_group_find(s);
  78                 if (sg == NULL)
  79                         *tmp = '\0';
  80                 else {
  81                         sgidx = session_group_index(sg);
  82                         xsnprintf(tmp, sizeof tmp, " (group %u)", sgidx);
  83                 }
  84
  85                 window_choose_add(wl->window->active, s->idx,
  86                     "%s: %u windows [%ux%u]%s%s", s->name,
  87                     winlink_count(&s->windows), s->sx, s->sy,
  88                     tmp, s->flags & SESSION_UNATTACHED ? "" : " (attached)");
  89         }
  90
  91         cdata = xmalloc(sizeof *cdata);
  92         if (args->argc != 0)
  93                 cdata->template = xstrdup(args->argv[0]);
  94         else
  95                 cdata->template = xstrdup("switch-client -t '%%'");
  96         cdata->client = ctx->curclient;
  97         cdata->client->references++;
  98
  99         window_choose_ready(wl->window->active,
 100             cur, cmd_choose_session_callback, cmd_choose_session_free, cdata);
 101
 102         return (0);
 103 }
 104
 105 void
 106 cmd_choose_session_callback(void *data, int idx)
 107 {
 108         struct cmd_choose_session_data  *cdata = data;
 109         struct session                  *s;
 110         struct cmd_list                 *cmdlist;
 111         struct cmd_ctx                   ctx;
 112         char                            *template, *cause;
 113
 114         if (idx == -1)
 115                 return;
 116         if (cdata->client->flags & CLIENT_DEAD)
 117                 return;
 118
 119         s = session_find_by_index(idx);
 120         if (s == NULL)
 121                 return;
 122         template = cmd_template_replace(cdata->template, s->name, 1);
 123
 124         if (cmd_string_parse(template, &cmdlist, &cause) != 0) {
 125                 if (cause != NULL) {
 126                         *cause = toupper((u_char) *cause);
 127                         status_message_set(cdata->client, "%s", cause);
 128                         xfree(cause);
 129                 }
 130                 xfree(template);
 131                 return;
 132         }
 133         xfree(template);
 134
 135         ctx.msgdata = NULL;
 136         ctx.curclient = cdata->client;
 137
 138         ctx.error = key_bindings_error;
 139         ctx.print = key_bindings_print;
 140         ctx.info = key_bindings_info;
 141
 142         ctx.cmdclient = NULL;
 143
 144         cmd_list_exec(cmdlist, &ctx);
 145         cmd_list_free(cmdlist);
 146 }
 147
 148 void
 149 cmd_choose_session_free(void *data)
 150 {
 151         struct cmd_choose_session_data  *cdata = data;
 152
 153         cdata->client->references--;
 154         xfree(cdata->template);
 155         xfree(cdata);
 156 }