/*
 * banning.c - client banning management
 *
 * Copyright © 2007-2009 Julien Danjou <julien@danjou.info>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 */

#include "banning.h"
#include "client.h"
#include "titlebar.h"
#include "screen.h"

/** Reban windows following current selected tags.
 * \param screen The screen to arrange.
 */
void
banning_need_update(screen_t *screen)
{
    /* We update the complete banning only once per main loop to avoid
     * excessive updates...  */
    screen->need_lazy_banning = true;

    /* But if a client will be banned in our next update we unfocus it now. */
    foreach(_c, globalconf.clients)
    {
        client_t *c = *_c;

        /* we don't touch other screens windows */
        if(!client_isvisible(c, screen) && c->screen == screen)
            client_ban_unfocus(c);
    }
}

static void
reban(screen_t *screen)
{
    if (!screen->need_lazy_banning)
        return;

    screen->need_lazy_banning = false;

    client_ignore_enterleave_events();

    foreach(_c, globalconf.clients)
    {
        client_t *c = *_c;

        /* Restore titlebar before client, so geometry is ok again. */
        if(titlebar_isvisible(c, screen))
            titlebar_unban(c->titlebar);

        if(client_isvisible(c, screen))
            client_unban(c);
    }

    /* Some people disliked the short flicker of background, so we first unban everything.
     * Afterwards we ban everything we don't want. This should avoid that. */
    foreach(_c, globalconf.clients)
    {
        client_t *c = *_c;

        if(!titlebar_isvisible(c, screen) && c->screen == screen)
            titlebar_ban(c->titlebar);

        /* we don't touch other screens windows */
        if(!client_isvisible(c, screen) && c->screen == screen)
            client_ban(c);
    }

    client_restore_enterleave_events();
}

/** Check all screens if they need to rebanned
 */
void
banning_refresh(void)
{
    foreach(screen, globalconf.screens)
        reban(screen);
}

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