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
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
|
// Copyright 2023 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_COMPUTE_PRESSURE_PRESSURE_CLIENT_IMPL_H_
#define CONTENT_BROWSER_COMPUTE_PRESSURE_PRESSURE_CLIENT_IMPL_H_
#include "base/sequence_checker.h"
#include "base/thread_annotations.h"
#include "content/common/content_export.h"
#include "mojo/public/cpp/bindings/associated_receiver.h"
#include "mojo/public/cpp/bindings/associated_remote.h"
#include "mojo/public/cpp/bindings/receiver.h"
#include "services/device/public/mojom/pressure_manager.mojom.h"
#include "services/device/public/mojom/pressure_update.mojom-forward.h"
#include "third_party/blink/public/mojom/compute_pressure/web_pressure_manager.mojom.h"
namespace content {
class PressureServiceBase;
// PressureServiceBase owns instances of this class for different
// PressureSources.
//
// This class implements the "device::mojom::PressureClient" interface to
// receive "device::mojom::PressureUpdate" from "device::PressureManagerImpl"
// and broadcasts the information to "blink::PressureClientImpl".
//
// This class is not thread-safe, so each instance must be used on one sequence.
class CONTENT_EXPORT PressureClientImpl : public device::mojom::PressureClient {
public:
explicit PressureClientImpl(PressureServiceBase* service);
~PressureClientImpl() override;
PressureClientImpl(const PressureClientImpl&) = delete;
PressureClientImpl& operator=(const PressureClientImpl&) = delete;
enum class PressureSourceType { kUnknown = 0, kNonVirtual = 1, kVirtual = 2 };
// device::mojom::PressureClient implementation.
void OnPressureUpdated(device::mojom::PressureUpdatePtr update) override;
void Reset();
// Set the services-side mojo::Receiver pressure source type owned by this
// class.
void SetPressureSourceType(bool is_virtual_source);
// Binds the associated remote from the Blink-side.
void BindPendingAssociatedRemote(
mojo::PendingAssociatedRemote<blink::mojom::WebPressureClient>);
// Create pending remote endpoint to //services.
mojo::PendingAssociatedRemote<device::mojom::PressureClient>
BindNewEndpointAndPassRemote();
bool is_client_associated_remote_bound() const {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return client_associated_remote_.is_bound();
}
PressureSourceType pressure_source_type() const {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return pressure_source_type_;
}
// Client to //services.
bool is_client_receiver_bound() const {
DCHECK_CALLED_ON_VALID_SEQUENCE(sequence_checker_);
return client_associated_receiver_.is_bound();
}
private:
SEQUENCE_CHECKER(sequence_checker_);
// This is safe because PressureServiceBase owns this class.
raw_ptr<PressureServiceBase> GUARDED_BY_CONTEXT(sequence_checker_) service_;
// Tracks if the source is virtual.
PressureSourceType pressure_source_type_
GUARDED_BY_CONTEXT(sequence_checker_) = PressureSourceType::kUnknown;
// Services side.
mojo::AssociatedReceiver<device::mojom::PressureClient> GUARDED_BY_CONTEXT(
sequence_checker_) client_associated_receiver_{this};
// Blink side.
mojo::AssociatedRemote<blink::mojom::WebPressureClient>
client_associated_remote_ GUARDED_BY_CONTEXT(sequence_checker_);
};
} // namespace content
#endif // CONTENT_BROWSER_COMPUTE_PRESSURE_PRESSURE_CLIENT_IMPL_H_
|
