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// Copyright 2008, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#ifndef CHROME_BROWSER_BROWSING_DATA_REMOVER_H__
#define CHROME_BROWSER_BROWSING_DATA_REMOVER_H__
#include "base/observer_list.h"
#include "base/time.h"
#include "chrome/browser/cancelable_request.h"
#include "chrome/common/notification_service.h"
class MessageLoop;
class Profile;
// BrowsingDataRemover is responsible for removing data related to browsing:
// visits in url database, downloads, cookies ...
class BrowsingDataRemover : public NotificationObserver {
public:
// Mask used for Remove.
// In addition to visits, this removes keywords and the last session.
static const int REMOVE_HISTORY = 1 << 0;
static const int REMOVE_DOWNLOADS = 1 << 1;
static const int REMOVE_COOKIES = 1 << 2;
static const int REMOVE_PASSWORDS = 1 << 3;
static const int REMOVE_CACHE = 1 << 4;
// Observer is notified when the removal is done. Done means keywords have
// been deleted, cache cleared and all other tasks scheduled.
class Observer {
public:
virtual void OnBrowsingDataRemoverDone() = 0;
};
// Creates a BrowsingDataRemover to remove browser data from the specified
// profile in the specified time range. Use Remove to initiate the removal.
BrowsingDataRemover(Profile* profile, Time delete_begin, Time delete_end);
~BrowsingDataRemover();
// Removes the specified items related to browsing.
void Remove(int remove_mask);
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
// Called when history deletion is done.
void OnHistoryDeletionDone();
private:
// NotificationObserver method. Callback when TemplateURLModel has finished
// loading. Deletes the entries from the model, and if we're not waiting on
// anything else notifies observers and deletes this BrowsingDataRemover.
void Observe(NotificationType type,
const NotificationSource& source,
const NotificationDetails& details);
// If we're not waiting on anything, notifies observers and deletes this
// object.
void NotifyAndDeleteIfDone();
// Callback when the cache has been deleted. Invokes NotifyAndDeleteIfDone.
void ClearedCache();
// Invoked on the IO thread to delete from the cache.
void ClearCacheOnIOThread(Time delete_begin,
Time delete_end,
MessageLoop* ui_loop);
// Returns true if we're all done.
bool all_done() {
return !waiting_for_keywords_ && !waiting_for_clear_cache_ &&
!waiting_for_clear_history_;
}
// Profile we're to remove from.
Profile* profile_;
// Start time to delete from.
const Time delete_begin_;
// End time to delete to.
const Time delete_end_;
// True if Remove has been invoked.
bool removing_;
// True if we're waiting for the TemplateURLModel to finish loading.
bool waiting_for_keywords_;
// True if we're waiting for the history to be deleted.
bool waiting_for_clear_history_;
// True if we're waiting for the cache to be cleared.
bool waiting_for_clear_cache_;
ObserverList<Observer> observer_list_;
// Used if we need to clear history.
CancelableRequestConsumer request_consumer_;
DISALLOW_EVIL_CONSTRUCTORS(BrowsingDataRemover);
};
#endif // CHROME_BROWSER_BROWSING_DATA_REMOVER_H__
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