/* $OpenBSD$ */

/*

 * Copyright (c) 2012 Nicholas Marriott <nicholas.marriott@gmail.com>

 * Copyright (c) 2012 George Nachman <tmux@georgester.com>

 *

 * Permission to use, copy, modify, and distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER

 * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING

 * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#include <sys/types.h>

#include <stdlib.h>

#include "tmux.h"

#define CONTROL_SHOULD_NOTIFY_CLIENT(c) \

  ((c) != NULL && ((c)->flags & CLIENT_CONTROL) && \

   (c)->control_state != NULL)

void

control_notify_pane_mode_changed(int pane)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%pane-mode-changed %%%u", pane);

  }

}

void

control_notify_window_layout_changed(struct window *w)

{

  struct client *c;

  struct session  *s;

  struct winlink  *wl;

  const char  *template;

  char    *cp;

  template = "%layout-change #{window_id} #{window_layout} "

      "#{window_visible_layout} #{window_raw_flags}";

  /*

   * When the last pane in a window is closed it won't have a layout root

   * and we don't need to inform the client about the layout change

   * because the whole window will go away soon.

   */

  wl = TAILQ_FIRST(&w->winlinks);

  if (wl == NULL || w->layout_root == NULL)

    return;

  cp = format_single(NULL, template, NULL, NULL, wl, NULL);

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)

      continue;

    s = c->session;

    if (winlink_find_by_window_id(&s->windows, w->id) != NULL)

      control_write(c, "%s", cp);

  }

  free(cp);

}

void

control_notify_window_pane_changed(struct window *w)

{

  struct client *c;

  if (w->active == NULL)

    return;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%window-pane-changed @%u %%%u", w->id,

        w->active->id);

  }

}

void

control_notify_window_unlinked(__unused struct session *s, struct window *w)

{

  struct client *c;

  struct session  *cs;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)

      continue;

    cs = c->session;

    if (winlink_find_by_window_id(&cs->windows, w->id) != NULL)

      control_write(c, "%%window-close @%u", w->id);

    else

      control_write(c, "%%unlinked-window-close @%u", w->id);

  }

}

void

control_notify_window_linked(__unused struct session *s, struct window *w)

{

  struct client *c;

  struct session  *cs;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)

      continue;

    cs = c->session;

    if (winlink_find_by_window_id(&cs->windows, w->id) != NULL)

      control_write(c, "%%window-add @%u", w->id);

    else

      control_write(c, "%%unlinked-window-add @%u", w->id);

  }

}

void

control_notify_window_renamed(struct window *w)

{

  struct client *c;

  struct session  *cs;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)

      continue;

    cs = c->session;

    if (winlink_find_by_window_id(&cs->windows, w->id) != NULL) {

      control_write(c, "%%window-renamed @%u %s", w->id,

          w->name);

    } else {

      control_write(c, "%%unlinked-window-renamed @%u %s",

          w->id, w->name);

    }

  }

}

void

control_notify_client_session_changed(struct client *cc)

{

  struct client *c;

  struct session  *s;

  if (cc->session == NULL)

    return;

  s = cc->session;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c) || c->session == NULL)

      continue;

    if (cc == c) {

      control_write(c, "%%session-changed $%u %s", s->id,

          s->name);

    } else {

      control_write(c, "%%client-session-changed %s $%u %s",

          cc->name, s->id, s->name);

    }

  }

}

void

control_notify_client_detached(struct client *cc)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (CONTROL_SHOULD_NOTIFY_CLIENT(c))

      control_write(c, "%%client-detached %s", cc->name);

  }

}

void

control_notify_session_renamed(struct session *s)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%session-renamed $%u %s", s->id, s->name);

  }

}

void

control_notify_session_created(__unused struct session *s)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%sessions-changed");

  }

}

void

control_notify_session_closed(__unused struct session *s)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%sessions-changed");

  }

}

void

control_notify_session_window_changed(struct session *s)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%session-window-changed $%u @%u", s->id,

        s->curw->window->id);

  }

}

void

control_notify_paste_buffer_changed(const char *name)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%paste-buffer-changed %s", name);

  }

}

void

control_notify_paste_buffer_deleted(const char *name)

{

  struct client *c;

  TAILQ_FOREACH(c, &clients, entry) {

    if (!CONTROL_SHOULD_NOTIFY_CLIENT(c))

      continue;

    control_write(c, "%%paste-buffer-deleted %s", name);

  }

}