blob: 391994156e6083c7bcd3cdad60fee10707d8b204 (
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
49
50
51
|
// Copyright 2019 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 CHROME_BROWSER_MEDIA_WEBRTC_DESKTOP_MEDIA_PICKER_MANAGER_H_
#define CHROME_BROWSER_MEDIA_WEBRTC_DESKTOP_MEDIA_PICKER_MANAGER_H_
#include "base/macros.h"
#include "base/observer_list.h"
namespace base {
template <typename T>
class NoDestructor;
}
// A singleton that acts as a rendezvous for dialog observers to register and
// the dialog managers/delegates to post their activities.
// TODO(crbug/953495): Merge this into DesktopMediaPickerFactoryImpl.
class DesktopMediaPickerManager {
public:
class DialogObserver : public base::CheckedObserver {
public:
// Called when a media dialog is opened/shown.
virtual void OnDialogOpened() = 0;
// Called when a media dialog is closed/hidden.
virtual void OnDialogClosed() = 0;
};
static DesktopMediaPickerManager* Get();
// For the observers
void AddObserver(DialogObserver* observer);
void RemoveObserver(DialogObserver* observer);
// For the notifiers
void OnShowDialog();
void OnHideDialog();
private:
friend base::NoDestructor<DesktopMediaPickerManager>;
DesktopMediaPickerManager();
~DesktopMediaPickerManager(); // Never called.
base::ObserverList<DesktopMediaPickerManager::DialogObserver> observers_;
DISALLOW_COPY_AND_ASSIGN(DesktopMediaPickerManager);
};
#endif // CHROME_BROWSER_MEDIA_WEBRTC_DESKTOP_MEDIA_PICKER_MANAGER_H_
|
