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
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
|
// Copyright 2015 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.
#include "content/browser/vr/vr_device_manager.h"
#include <utility>
#include "base/bind.h"
#include "base/memory/singleton.h"
#include "build/build_config.h"
#include "third_party/WebKit/public/platform/modules/vr/WebVR.h"
#if defined(OS_ANDROID)
#include "content/browser/vr/android/cardboard/cardboard_vr_device_provider.h"
#endif
namespace content {
namespace {
VRDeviceManager* g_vr_device_manager = nullptr;
}
VRDeviceManager::VRDeviceManager()
: vr_initialized_(false), keep_alive_(false) {
bindings_.set_connection_error_handler(
base::Bind(&VRDeviceManager::OnConnectionError, base::Unretained(this)));
// Register VRDeviceProviders for the current platform
#if defined(OS_ANDROID)
scoped_ptr<VRDeviceProvider> cardboard_provider(
new CardboardVRDeviceProvider());
RegisterProvider(std::move(cardboard_provider));
#endif
}
VRDeviceManager::VRDeviceManager(scoped_ptr<VRDeviceProvider> provider)
: vr_initialized_(false), keep_alive_(true) {
thread_checker_.DetachFromThread();
RegisterProvider(std::move(provider));
SetInstance(this);
}
VRDeviceManager::~VRDeviceManager() {
DCHECK(thread_checker_.CalledOnValidThread());
g_vr_device_manager = nullptr;
}
void VRDeviceManager::BindRequest(mojo::InterfaceRequest<VRService> request) {
VRDeviceManager* device_manager = GetInstance();
device_manager->bindings_.AddBinding(device_manager, std::move(request));
}
void VRDeviceManager::OnConnectionError() {
DCHECK(thread_checker_.CalledOnValidThread());
if (bindings_.empty() && !keep_alive_) {
// Delete the device manager when it has no active connections.
delete g_vr_device_manager;
}
}
VRDeviceManager* VRDeviceManager::GetInstance() {
if (!g_vr_device_manager)
g_vr_device_manager = new VRDeviceManager();
return g_vr_device_manager;
}
void VRDeviceManager::SetInstance(VRDeviceManager* instance) {
// Unit tests can create multiple instances but only one should exist at any
// given time so g_vr_device_manager should only go from nullptr to
// non-nullptr and vica versa.
CHECK_NE(!!instance, !!g_vr_device_manager);
g_vr_device_manager = instance;
}
bool VRDeviceManager::HasInstance() {
// For testing. Checks to see if a VRDeviceManager instance is active.
return !!g_vr_device_manager;
}
mojo::Array<VRDeviceInfoPtr> VRDeviceManager::GetVRDevices() {
DCHECK(thread_checker_.CalledOnValidThread());
InitializeProviders();
std::vector<VRDevice*> devices;
for (const auto& provider : providers_)
provider->GetDevices(&devices);
mojo::Array<VRDeviceInfoPtr> out_devices(0);
for (const auto& device : devices) {
if (device->id() == VR_DEVICE_LAST_ID)
continue;
if (devices_.find(device->id()) == devices_.end())
devices_[device->id()] = device;
VRDeviceInfoPtr vr_device_info = device->GetVRDevice();
if (vr_device_info.is_null())
continue;
vr_device_info->index = device->id();
out_devices.push_back(std::move(vr_device_info));
}
return out_devices;
}
VRDevice* VRDeviceManager::GetDevice(unsigned int index) {
DCHECK(thread_checker_.CalledOnValidThread());
DeviceMap::iterator iter = devices_.find(index);
if (iter == devices_.end()) {
return nullptr;
}
return iter->second;
}
void VRDeviceManager::InitializeProviders() {
if (vr_initialized_) {
return;
}
for (const auto& provider : providers_)
provider->Initialize();
vr_initialized_ = true;
}
void VRDeviceManager::RegisterProvider(scoped_ptr<VRDeviceProvider> provider) {
providers_.push_back(make_linked_ptr(provider.release()));
}
void VRDeviceManager::GetDevices(const GetDevicesCallback& callback) {
callback.Run(GetVRDevices());
}
void VRDeviceManager::GetSensorState(uint32_t index,
const GetSensorStateCallback& callback) {
VRDevice* device = GetDevice(index);
if (device) {
callback.Run(device->GetSensorState());
} else {
callback.Run(nullptr);
}
}
void VRDeviceManager::ResetSensor(uint32_t index) {
VRDevice* device = GetDevice(index);
if (device)
device->ResetSensor();
}
} // namespace content
|
