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
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
// Copyright 2021 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#ifndef CONTENT_BROWSER_DEVICE_POSTURE_DEVICE_POSTURE_PLATFORM_PROVIDER_H_
#define CONTENT_BROWSER_DEVICE_POSTURE_DEVICE_POSTURE_PLATFORM_PROVIDER_H_
#include <memory>
#include "base/observer_list.h"
#include "base/observer_list_types.h"
#include "third_party/blink/public/mojom/device_posture/device_posture_provider.mojom.h"
#include "ui/gfx/geometry/rect.h"
namespace content {
class WebContents;
// This the base class for platform-specific device posture provider
// implementations. In typical usage a single instance is owned by
// DeviceService.
class DevicePosturePlatformProvider {
public:
class Observer : public base::CheckedObserver {
public:
virtual void OnDevicePostureChanged(
const blink::mojom::DevicePostureType& posture) {}
virtual void OnDisplayFeatureBoundsChanged(
const gfx::Rect& display_feature_bounds) {}
};
// Returns a DevicePostureProvider for the current platform.
static std::unique_ptr<DevicePosturePlatformProvider> Create(
WebContents* web_contents);
virtual ~DevicePosturePlatformProvider();
blink::mojom::DevicePostureType GetDevicePosture();
const gfx::Rect& GetDisplayFeatureBounds();
DevicePosturePlatformProvider(const DevicePosturePlatformProvider&) = delete;
DevicePosturePlatformProvider& operator=(
const DevicePosturePlatformProvider&) = delete;
void AddObserver(Observer* observer);
void RemoveObserver(Observer* observer);
protected:
virtual void StartListening() = 0;
virtual void StopListening() = 0;
DevicePosturePlatformProvider();
void NotifyDevicePostureChanged(
const blink::mojom::DevicePostureType& posture);
void NotifyDisplayFeatureBoundsChanged(const gfx::Rect& segments);
blink::mojom::DevicePostureType current_posture_ =
blink::mojom::DevicePostureType::kContinuous;
gfx::Rect current_display_feature_bounds_;
private:
// DevicePosturePlatformProvider observers are expected to unregister
// themselves.
base::ObserverList<Observer> observers_;
};
} // namespace content
#endif // CONTENT_BROWSER_DEVICE_POSTURE_DEVICE_POSTURE_PLATFORM_PROVIDER_H_
|
