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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 APP_TABLE_MODEL_OBSERVER_H_
#define APP_TABLE_MODEL_OBSERVER_H_
// Observer for a TableModel. Anytime the model changes, it must notify its
// observer.
class TableModelObserver {
public:
// Invoked when the model has been completely changed.
virtual void OnModelChanged() = 0;
// Invoked when a range of items has changed.
virtual void OnItemsChanged(int start, int length) = 0;
// Invoked when new items are added.
virtual void OnItemsAdded(int start, int length) = 0;
// Invoked when a range of items has been removed.
virtual void OnItemsRemoved(int start, int length) = 0;
};
#endif // APP_TABLE_MODEL_OBSERVER_H_
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