blob: aca9bda44bc32e524b7efece67be75d0fc0a4891 [file] [log] [blame]
// Copyright 2017 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.
#include "ui/aura/aura_export.h"
namespace aura {
namespace client {
class AURA_EXPORT DragDropClientObserver {
// Called when dragging started.
virtual void OnDragStarted() = 0;
// Called when dragging ended.
virtual void OnDragEnded() = 0;
#if defined(OS_CHROMEOS)
// Called when the set of currently selected drag operation changes during the
// drag. |action| is a bitmask of the actions selected by the client. This is
// to provide feedback during the operation, it does not take precedence over
// the operation returned from StartDragAndDrop.
virtual void OnDragActionsChanged(int actions) {}
virtual ~DragDropClientObserver() = default;
} // namespace client
} // namespace aura