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/*
 *  Copyright © 2003 Marco Pesenti Gritti
 *  Copyright © 2003 Christian Persch
 *  Copyright © 2005 Jean-François Rameau
 *
 *  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, 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.
 *
 *  $Id$
 */

#include "config.h"
#include "ephy-debug.h"

#include "ephy-adblock-manager.h"
#include "ephy-adblock.h"

struct _EphyAdBlockManagerPrivate
{
        EphyAdBlock *blocker;
};

G_DEFINE_TYPE (EphyAdBlockManager, ephy_adblock_manager, G_TYPE_OBJECT);

#define EPHY_ADBLOCK_MANAGER_GET_PRIVATE(object) \
    (G_TYPE_INSTANCE_GET_PRIVATE ((object), \
         EPHY_TYPE_ADBLOCK_MANAGER, EphyAdBlockManagerPrivate))


/**
 * ephy_adblock_manager_set_blocker:
 * @shell: a #EphyAdBlockManager
 * @blocker: the new blocker or NULL
 *
 * Set a new ad blocker. If #blocker is %NULL,
 * ad blocking is toggled off.
 *
 **/
void
ephy_adblock_manager_set_blocker (EphyAdBlockManager *self,
                  EphyAdBlock *blocker)
{
    self->priv->blocker = blocker;
}

/**
 * ephy_adblock_manager_should_load:
 * @shell: a #EphyAdBlockManager
 * @url: the target url to be loaded or not
 * @AdUriCheckType: what check to be applied (image, script, ...)
 *
 * Check if an url is to be loaded or not 
 *
 * ReturnValue: TRUE if the url is to be loaded
 **/
gboolean
ephy_adblock_manager_should_load (EphyAdBlockManager *self,
                  EphyEmbed *embed,
                          const char *url,
                          AdUriCheckType check_type)
{
    if (self->priv->blocker != NULL)
    {
        return ephy_adblock_should_load (self->priv->blocker,   
                         embed,
                         url,
                         check_type);
    }

    /* default: let's process any url */
    return TRUE;
}

static void
ephy_adblock_manager_init (EphyAdBlockManager *self)
{
    EphyAdBlockManagerPrivate *priv;

    LOG ("ephy_adblock_manager_init");

    priv = EPHY_ADBLOCK_MANAGER_GET_PRIVATE(self);
    priv->blocker = NULL;
    self->priv = priv;
}

static void
ephy_adblock_manager_class_init (EphyAdBlockManagerClass *klass)
{
    GObjectClass *object_class = G_OBJECT_CLASS (klass);

    g_signal_new ("rules_changed",
              G_OBJECT_CLASS_TYPE (object_class),
              G_SIGNAL_RUN_FIRST,
              G_STRUCT_OFFSET (EphyAdBlockManagerClass, rules_changed),
              NULL, NULL,
              g_cclosure_marshal_VOID__VOID,
              G_TYPE_NONE,
              0,
              0);

    g_type_class_add_private (object_class, sizeof (EphyAdBlockManagerPrivate));
}

/**
 * ephy_adblock_manager_edit_rule:
 * @shell: a #EphyAdBlockManager
 * @url: the target url on which the rule is based
 * @allowed: TRUE if the url has to be blocked.
 *
 * Ask to the blocker a new rule based on @url.
 *
 **/
void
ephy_adblock_manager_edit_rule (EphyAdBlockManager *self,
                        const char *url,
                        gboolean allowed)
{
    if (self->priv->blocker != NULL)
    {
        ephy_adblock_edit_rule (self->priv->blocker,    
                    url,
                    allowed);
    }
}

/**
 * ephy_adblock_manager_has_blocker:
 * @shell: a #EphyAdBlockManager
 *
 * Check if Epiphany has currently an active blocker
 *
 * ReturnValue: TRUE if an active blocker is running
 **/
gboolean
ephy_adblock_manager_has_blocker (EphyAdBlockManager *self)
{
    return self->priv->blocker != NULL;
}