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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.
// BookmarkService handles reading/write the bookmark bar model. The
// BookmarkBarModel uses the BookmarkService to load bookmarks from
// disk, as well as notifying the BookmarkService every time the model
// changes.
//
// Internally BookmarkService uses BookmarkCoded to do the actual read/write.
// NOTE: This class is currently unsed. The plan is to move bookmarks
// out of the history db using this class and BookmarksCodec instead
// (bug 1256202).
#ifndef CHROME_BROWSER_BOOKMARK_STORAGE_H_
#define CHROME_BROWSER_BOOKMARK_STORAGE_H_
#include "base/ref_counted.h"
#include "base/task.h"
#include "chrome/browser/browser_process.h"
class BookmarkBarModel;
class Profile;
class Value;
namespace {
class BookmarkStorageBackend;
}
class BookmarkStorage : public base::RefCountedThreadSafe<BookmarkStorage> {
friend class BookmarkStorageBackend;
public:
// Creates a BookmarkStorage for the specified model
BookmarkStorage(Profile* profile, BookmarkBarModel* model);
// Loads the bookmarks into the model, notifying the model when done.
void LoadBookmarks();
// Schedules saving the bookmark bar model to disk.
void ScheduleSave();
// Notification the bookmark bar model is going to be deleted. If there is
// a pending save, it is saved immediately.
void BookmarkModelDeleted();
private:
// Callback from backend with the results of the bookmark file.
void LoadedBookmarks(Value* root_value);
// Schedules a save on the backend thread.
void SaveNow();
// Returns the thread the backend is run on.
Thread* backend_thread() { return g_browser_process->file_thread(); }
// The model. The model is NULL once BookmarkModelDeleted has been invoked.
BookmarkBarModel* model_;
// Used to delay saves.
ScopedRunnableMethodFactory<BookmarkStorage> save_factory_;
// The backend handles actual reading/writing to disk.
scoped_refptr<BookmarkStorageBackend> backend_;
DISALLOW_COPY_AND_ASSIGN(BookmarkStorage);
};
#endif // CHROME_BROWSER_BOOKMARK_STORAGE_H_
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