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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CHROME_BROWSER_THUMBNAIL_STORE_H_
#define CHROME_BROWSER_THUMBNAIL_STORE_H_
#include <vector>
#include "base/file_path.h"
class GURL;
class SkBitmap;
struct ThumbnailScore;
namespace base {
class Time;
}
// This storage interface provides storage for the thumbnails used
// by the new_tab_ui.
class ThumbnailStore {
public:
ThumbnailStore();
~ThumbnailStore();
// Must be called after creation but before other methods are called.
// file_path is a directory where a new database should be created
// or the location of an existing databse.
// If false is returned, no other methods should be called.
bool Init(const FilePath& file_path);
// Stores the given thumbnail and score with the associated url.
bool SetPageThumbnail(const GURL& url,
const SkBitmap& thumbnail,
const ThumbnailScore& score,
const base::Time& time);
// Retrieves the thumbnail and score for the given url.
// Returns false if there is not data for the given url or some other
// error occurred.
bool GetPageThumbnail(const GURL& url,
SkBitmap** thumbnail,
ThumbnailScore& score);
private:
// The location of the thumbnail store.
FilePath file_path_;
// Pack the given ThumbnailScore into the given Pickle.
void PackScore(const ThumbnailScore& score, Pickle& packed);
// Unpack a ThumbnailScore from a given Pickle and associated iterator.
// Returns false is a ThumbnailScore could not be unpacked.
bool UnpackScore(ThumbnailScore* score, const Pickle& packed, void*& iter);
DISALLOW_COPY_AND_ASSIGN(ThumbnailStore);
};
#endif // CHROME_BROWSER_THUMBNAIL_STORE_H_
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