external/bsd/tmux/dist/control-notify.c

   1 /* $OpenBSD$ */
   2
   3 /*
   4  * Copyright (c) 2012 Nicholas Marriott <nicm@users.sourceforge.net>
   5  * Copyright (c) 2012 George Nachman <tmux@georgester.com>
   6  *
   7  * Permission to use, copy, modify, and distribute this software for any
   8  * purpose with or without fee is hereby granted, provided that the above
   9  * copyright notice and this permission notice appear in all copies.
  10  *
  11  * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
  12  * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
  13  * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
  14  * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
  15  * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
  16  * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
  17  * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
  18  */
  19
  20 #include <sys/types.h>
  21
  22 #include "tmux.h"
  23
  24 #define CONTROL_SHOULD_NOTIFY_CLIENT(c) \
  25         ((c) != NULL && ((c)->flags & CLIENT_CONTROL))
  26
  27 void
  28 control_notify_input(struct client *c, struct window_pane *wp,
  29     struct evbuffer *input)
  30 {
  31         u_char          *buf;
  32         size_t           len;
  33         struct evbuffer *message;
  34         u_int            i;
  35
  36         if (c->session == NULL)
  37             return;
  38
  39         buf = EVBUFFER_DATA(input);
  40         len = EVBUFFER_LENGTH(input);
  41
  42         /*
  43          * Only write input if the window pane is linked to a window belonging
  44          * to the client's session.
  45          */
  46         if (winlink_find_by_window(&c->session->windows, wp->window) != NULL) {
  47                 message = evbuffer_new();
  48                 evbuffer_add_printf(message, "%%output %%%u ", wp->id);
  49                 for (i = 0; i < len; i++) {
  50                         if (buf[i] < ' ' || buf[i] == '\\')
  51                             evbuffer_add_printf(message, "\\%03o", buf[i]);
  52                         else
  53                             evbuffer_add_printf(message, "%c", buf[i]);
  54                 }
  55                 control_write_buffer(c, message);
  56                 evbuffer_free(message);
  57         }
  58 }
  59
  60 void
  61 control_notify_window_layout_changed(struct window *w)
  62 {
  63         struct client           *c;
  64         struct session          *s;
  65         struct format_tree      *ft;
  66         struct winlink          *wl;
  67         u_int                    i;
  68         const char              *template;
  69
  70         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
  71                 c = ARRAY_ITEM(&clients, i);
  72                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
  73                         continue;
  74                 s = c->session;
  75
  76                 if (winlink_find_by_window_id(&s->windows, w->id) == NULL)
  77                         continue;
  78
  79                 /*
  80                  * When the last pane in a window is closed it won't have a
  81                  * layout root and we don't need to inform the client about the
  82                  * layout change because the whole window will go away soon.
  83                  */
  84                 if (w->layout_root == NULL)
  85                         continue;
  86                 template = "%layout-change #{window_id} #{window_layout}";
  87
  88                 ft = format_create();
  89                 wl = winlink_find_by_window(&s->windows, w);
  90                 if (wl != NULL) {
  91                         format_winlink(ft, c->session, wl);
  92                         control_write(c, "%s", format_expand(ft, template));
  93                 }
  94                 format_free(ft);
  95         }
  96 }
  97
  98 void
  99 control_notify_window_unlinked(unused struct session *s, struct window *w)
 100 {
 101         struct client   *c;
 102         u_int            i;
 103
 104         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 105                 c = ARRAY_ITEM(&clients, i);
 106                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
 107                         continue;
 108
 109                 control_write(c, "%%window-close @%u", w->id);
 110         }
 111 }
 112
 113 void
 114 control_notify_window_linked(unused struct session *s, struct window *w)
 115 {
 116         struct client   *c;
 117         struct session  *cs;
 118         u_int            i;
 119
 120         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 121                 c = ARRAY_ITEM(&clients, i);
 122                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
 123                         continue;
 124                 cs = c->session;
 125
 126                 if (winlink_find_by_window_id(&cs->windows, w->id) != NULL)
 127                         control_write(c, "%%window-add @%u", w->id);
 128                 else
 129                         control_write(c, "%%unlinked-window-add @%u", w->id);
 130         }
 131 }
 132
 133 void
 134 control_notify_window_renamed(struct window *w)
 135 {
 136         struct client   *c;
 137         u_int            i;
 138
 139         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 140                 c = ARRAY_ITEM(&clients, i);
 141                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
 142                         continue;
 143
 144                 control_write(c, "%%window-renamed @%u %s", w->id, w->name);
 145         }
 146 }
 147
 148 void
 149 control_notify_attached_session_changed(struct client *c)
 150 {
 151         struct session  *s;
 152
 153         if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)
 154                 return;
 155         s = c->session;
 156
 157         control_write(c, "%%session-changed $%u %s", s->id, s->name);
 158 }
 159
 160 void
 161 control_notify_session_renamed(struct session *s)
 162 {
 163         struct client   *c;
 164         u_int            i;
 165
 166         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 167                 c = ARRAY_ITEM(&clients, i);
 168                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
 169                         continue;
 170
 171                 control_write(c, "%%session-renamed $%u %s", s->id, s->name);
 172         }
 173 }
 174
 175 void
 176 control_notify_session_created(unused struct session *s)
 177 {
 178         struct client   *c;
 179         u_int            i;
 180
 181         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 182                 c = ARRAY_ITEM(&clients, i);
 183                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
 184                         continue;
 185
 186                 control_write(c, "%%sessions-changed");
 187         }
 188 }
 189
 190 void
 191 control_notify_session_close(unused struct session *s)
 192 {
 193         struct client   *c;
 194         u_int            i;
 195
 196         for (i = 0; i < ARRAY_LENGTH(&clients); i++) {
 197                 c = ARRAY_ITEM(&clients, i);
 198                 if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))
 199                         continue;
 200
 201                 control_write(c, "%%sessions-changed");
 202         }
 203 }