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
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
content / browser / compute_pressure / web_contents_pressure_manager_proxy.cc [blame]
// Copyright 2024 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "content/browser/compute_pressure/web_contents_pressure_manager_proxy.h"
#include <optional>
#include "base/functional/bind.h"
#include "base/functional/callback_helpers.h"
#include "base/unguessable_token.h"
#include "content/public/browser/device_service.h"
#include "services/device/public/mojom/pressure_manager.mojom.h"
#include "services/device/public/mojom/pressure_update.mojom.h"
namespace content {
WebContentsPressureManagerProxy::WebContentsPressureManagerProxy(
WebContents* web_contents)
: WebContentsUserData<WebContentsPressureManagerProxy>(*web_contents) {}
WebContentsPressureManagerProxy::~WebContentsPressureManagerProxy() = default;
// static
WebContentsPressureManagerProxy* WebContentsPressureManagerProxy::GetOrCreate(
WebContents* web_contents) {
WebContentsUserData<WebContentsPressureManagerProxy>::CreateForWebContents(
web_contents);
return WebContentsUserData<WebContentsPressureManagerProxy>::FromWebContents(
web_contents);
}
std::unique_ptr<ScopedVirtualPressureSourceForDevTools>
WebContentsPressureManagerProxy::CreateVirtualPressureSourceForDevTools(
device::mojom::PressureSource source,
device::mojom::VirtualPressureSourceMetadataPtr metadata) {
if (virtual_pressure_sources_tokens_.contains(source)) {
return nullptr;
}
auto virtual_pressure_source =
base::WrapUnique(new ScopedVirtualPressureSourceForDevTools(
source, std::move(metadata), weak_ptr_factory_.GetWeakPtr()));
virtual_pressure_sources_tokens_[source] = virtual_pressure_source->token();
return virtual_pressure_source;
}
std::optional<base::UnguessableToken>
WebContentsPressureManagerProxy::GetTokenFor(
device::mojom::PressureSource source) const {
auto it = virtual_pressure_sources_tokens_.find(source);
if (it == virtual_pressure_sources_tokens_.end()) {
return std::nullopt;
}
return it->second;
}
void WebContentsPressureManagerProxy::EnsureDeviceServiceConnection() {
if (pressure_manager_) {
return;
}
GetDeviceService().BindPressureManager(
pressure_manager_.BindNewPipeAndPassReceiver());
pressure_manager_.reset_on_disconnect();
}
device::mojom::PressureManager*
WebContentsPressureManagerProxy::GetPressureManager() {
EnsureDeviceServiceConnection();
return pressure_manager_.get();
}
void WebContentsPressureManagerProxy::
OnScopedVirtualPressureSourceDevToolsDeletion(
const ScopedVirtualPressureSourceForDevTools& virtual_pressure_source) {
auto it =
virtual_pressure_sources_tokens_.find(virtual_pressure_source.source());
CHECK(it != virtual_pressure_sources_tokens_.end());
CHECK_EQ(it->second, virtual_pressure_source.token());
virtual_pressure_sources_tokens_.erase(it);
}
WEB_CONTENTS_USER_DATA_KEY_IMPL(WebContentsPressureManagerProxy);
ScopedVirtualPressureSourceForDevTools::ScopedVirtualPressureSourceForDevTools(
device::mojom::PressureSource source,
device::mojom::VirtualPressureSourceMetadataPtr metadata,
base::WeakPtr<WebContentsPressureManagerProxy>
web_contents_pressure_manager_proxy)
: source_(source),
token_(base::UnguessableToken::Create()),
web_contents_pressure_manager_proxy_(
std::move(web_contents_pressure_manager_proxy)) {
web_contents_pressure_manager_proxy_->GetPressureManager()
->AddVirtualPressureSource(token_, source, std::move(metadata),
base::DoNothing());
}
ScopedVirtualPressureSourceForDevTools::
~ScopedVirtualPressureSourceForDevTools() {
if (web_contents_pressure_manager_proxy_) {
web_contents_pressure_manager_proxy_->GetPressureManager()
->RemoveVirtualPressureSource(token_, source_, base::DoNothing());
web_contents_pressure_manager_proxy_
->OnScopedVirtualPressureSourceDevToolsDeletion(*this);
}
}
device::mojom::PressureSource ScopedVirtualPressureSourceForDevTools::source()
const {
return source_;
}
base::UnguessableToken ScopedVirtualPressureSourceForDevTools::token() const {
return token_;
}
void ScopedVirtualPressureSourceForDevTools::UpdateVirtualPressureSourceState(
device::mojom::PressureState state,
device::mojom::PressureManager::UpdateVirtualPressureSourceStateCallback
callback) {
if (web_contents_pressure_manager_proxy_) {
web_contents_pressure_manager_proxy_->GetPressureManager()
->UpdateVirtualPressureSourceState(token_, source_, state,
std::move(callback));
}
}
} // namespace content