blob: 6c2dc945295a070aa0c01ff0d73088e14757d116 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
|
// 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.
#ifndef COMPONENTS_EXO_DATA_SOURCE_DELEGATE_H_
#define COMPONENTS_EXO_DATA_SOURCE_DELEGATE_H_
#include <string>
#include "base/files/scoped_file.h"
namespace exo {
class DataSource;
// Handles events on data devices in context-specific ways.
class DataSourceDelegate {
public:
// 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 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;
protected:
virtual ~DataSourceDelegate() {}
};
} // namespace exo
#endif // COMPONENTS_EXO_DATA_SOURCE_DELEGATE_H_
|
