blob: 59614445af6feb3ad34288431fade51a69f17031 [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 <string>
#include "base/files/scoped_file.h"
namespace exo {
class DataSource;
// Handles events on data devices in context-specific ways.
class DataSourceDelegate {
// Called at the top of the data device's destructor, to give observers a
// chance to remove themselves.
virtual void OnDataSourceDestroying(DataSource* source) = 0;
// Called when a client accepts a |mime_type|.
virtual void OnTarget(const base::Optional<std::string>& mime_type) = 0;
// Called when the data is requested.
virtual void OnSend(const std::string& mime_type, base::ScopedFD fd) = 0;
// Called when selection or drag and drop operation was cancelled.
virtual void OnCancelled() = 0;
// Called when a user performes drop operation.
virtual void OnDndDropPerformed() = 0;
// Called when the drag and drop operation completes and compositor stop using
// the data source.
virtual void OnDndFinished() = 0;
// Called when the compositor selects one drag and drop action.
virtual void OnAction(DndAction dnd_action) = 0;
virtual ~DataSourceDelegate() {}
} // namespace exo