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ash / public / cpp / holding_space / holding_space_model_observer.h [blame]
// Copyright 2020 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef ASH_PUBLIC_CPP_HOLDING_SPACE_HOLDING_SPACE_MODEL_OBSERVER_H_
#define ASH_PUBLIC_CPP_HOLDING_SPACE_HOLDING_SPACE_MODEL_OBSERVER_H_
#include <vector>
#include "ash/public/cpp/ash_public_export.h"
#include "base/observer_list_types.h"
namespace ash {
class HoldingSpaceItem;
struct HoldingSpaceItemUpdatedFields;
class ASH_PUBLIC_EXPORT HoldingSpaceModelObserver
: public base::CheckedObserver {
public:
// Called when `items` get added to the holding space model.
virtual void OnHoldingSpaceItemsAdded(
const std::vector<const HoldingSpaceItem*>& items) {}
// Called when `items` get removed from the holding space model.
virtual void OnHoldingSpaceItemsRemoved(
const std::vector<const HoldingSpaceItem*>& items) {}
// Called when a partially initialized holding space `item` gets fully
// initialized.
virtual void OnHoldingSpaceItemInitialized(const HoldingSpaceItem* item) {}
// Called when an `item` gets updated within the holding space model. The
// specific fields which were updated are provided in `updated_fields`.
virtual void OnHoldingSpaceItemUpdated(
const HoldingSpaceItem* item,
const HoldingSpaceItemUpdatedFields& updated_fields) {}
};
} // namespace ash
#endif // ASH_PUBLIC_CPP_HOLDING_SPACE_HOLDING_SPACE_MODEL_OBSERVER_H_