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
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
|
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* vim: set sw=2 ts=8 et ft=cpp : */
/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this file,
* You can obtain one at http://mozilla.org/MPL/2.0/. */
#ifndef mozilla_Hal_h
#define mozilla_Hal_h
#include "nsTArray.h"
#include "mozilla/hal_sandbox/PHal.h"
#include "mozilla/HalScreenConfiguration.h"
#include "mozilla/HalBatteryInformation.h"
#include "mozilla/HalNetworkInformation.h"
#include "mozilla/HalWakeLockInformation.h"
#include "mozilla/HalTypes.h"
#include "mozilla/MozPromise.h"
#include <cstdint>
/*
* Hal.h contains the public Hal API.
*
* By default, this file defines its functions in the hal namespace, but if
* MOZ_HAL_NAMESPACE is defined, we'll define our functions in that namespace.
*
* This is used by HalImpl.h and HalSandbox.h, which define copies of all the
* functions here in the hal_impl and hal_sandbox namespaces.
*/
class nsPIDOMWindowInner;
#ifndef MOZ_HAL_NAMESPACE
# define MOZ_HAL_NAMESPACE hal
# define MOZ_DEFINED_HAL_NAMESPACE 1
#endif
namespace mozilla {
namespace hal {
class WindowIdentifier;
} // namespace hal
namespace MOZ_HAL_NAMESPACE {
/**
* Initializes the HAL. This must be called before any other HAL function.
*/
void Init();
/**
* Shuts down the HAL. Besides freeing all the used resources this will check
* that all observers have been properly deregistered and assert if not.
*/
void Shutdown();
/**
* Turn the default vibrator device on/off per the pattern specified
* by |pattern|. Each element in the pattern is the number of
* milliseconds to turn the vibrator on or off. The first element in
* |pattern| is an "on" element, the next is "off", and so on.
*
* If |pattern| is empty, any in-progress vibration is canceled.
*
* Only an active window within an active tab may call Vibrate; calls
* from inactive windows and windows on inactive tabs do nothing.
*
* If you're calling hal::Vibrate from the outside world, pass an
* nsIDOMWindow* in place of the WindowIdentifier parameter.
* The method with WindowIdentifier will be called automatically.
*/
void Vibrate(const nsTArray<uint32_t>& pattern, nsPIDOMWindowInner* aWindow);
void Vibrate(const nsTArray<uint32_t>& pattern, hal::WindowIdentifier&& id);
/**
* Cancel a vibration started by the content window identified by
* WindowIdentifier.
*
* If the window was the last window to start a vibration, the
* cancellation request will go through even if the window is not
* active.
*
* As with hal::Vibrate(), if you're calling hal::CancelVibrate from the outside
* world, pass an nsIDOMWindow*. The method with WindowIdentifier will be called
* automatically.
*/
void CancelVibrate(nsPIDOMWindowInner* aWindow);
void CancelVibrate(hal::WindowIdentifier&& id);
#define MOZ_DEFINE_HAL_OBSERVER(name_) \
/** \
* Inform the backend there is a new |name_| observer. \
* @param aObserver The observer that should be added. \
*/ \
void Register##name_##Observer(hal::name_##Observer* aObserver); \
/** \
* Inform the backend a |name_| observer unregistered. \
* @param aObserver The observer that should be removed. \
*/ \
void Unregister##name_##Observer(hal::name_##Observer* aObserver);
MOZ_DEFINE_HAL_OBSERVER(Battery);
/**
* Returns the current battery information.
*/
void GetCurrentBatteryInformation(hal::BatteryInformation* aBatteryInfo);
/**
* Notify of a change in the battery state.
* @param aBatteryInfo The new battery information.
*/
void NotifyBatteryChange(const hal::BatteryInformation& aBatteryInfo);
/**
* Register an observer for the sensor of given type.
*
* The observer will receive data whenever the data generated by the
* sensor is avaiable.
*/
void RegisterSensorObserver(hal::SensorType aSensor,
hal::ISensorObserver* aObserver);
/**
* Unregister an observer for the sensor of given type.
*/
void UnregisterSensorObserver(hal::SensorType aSensor,
hal::ISensorObserver* aObserver);
/**
* Post a value generated by a sensor.
*
* This API is internal to hal; clients shouldn't call it directly.
*/
void NotifySensorChange(const hal::SensorData& aSensorData);
/**
* Enable sensor notifications from the backend
*
* This method is only visible from implementation of sensor manager.
* Rest of the system should not try this.
*/
void EnableSensorNotifications(hal::SensorType aSensor);
/**
* Disable sensor notifications from the backend
*
* This method is only visible from implementation of sensor manager.
* Rest of the system should not try this.
*/
void DisableSensorNotifications(hal::SensorType aSensor);
MOZ_DEFINE_HAL_OBSERVER(Network);
/**
* Returns the current network information.
*/
void GetCurrentNetworkInformation(hal::NetworkInformation* aNetworkInfo);
/**
* Notify of a change in the network state.
* @param aNetworkInfo The new network information.
*/
void NotifyNetworkChange(const hal::NetworkInformation& aNetworkInfo);
/**
* Enable wake lock notifications from the backend.
*
* This method is only used by WakeLockObserversManager.
*/
void EnableWakeLockNotifications();
/**
* Disable wake lock notifications from the backend.
*
* This method is only used by WakeLockObserversManager.
*/
void DisableWakeLockNotifications();
MOZ_DEFINE_HAL_OBSERVER(WakeLock);
/**
* Adjust a wake lock's counts on behalf of a given process.
*
* In most cases, you shouldn't need to pass the aProcessID argument; the
* default of CONTENT_PROCESS_ID_UNKNOWN is probably what you want.
*
* @param aTopic lock topic
* @param aLockAdjust to increase or decrease active locks
* @param aHiddenAdjust to increase or decrease hidden locks
* @param aProcessID indicates which process we're modifying the wake lock
* on behalf of. It is interpreted as
*
* CONTENT_PROCESS_ID_UNKNOWN: The current process
* CONTENT_PROCESS_ID_MAIN: The root process
* X: The process with ContentChild::GetID() == X
*/
void ModifyWakeLock(const nsAString& aTopic, hal::WakeLockControl aLockAdjust,
hal::WakeLockControl aHiddenAdjust,
uint64_t aProcessID = hal::CONTENT_PROCESS_ID_UNKNOWN);
/**
* Query the wake lock numbers of aTopic.
* @param aTopic lock topic
* @param aWakeLockInfo wake lock numbers
*/
void GetWakeLockInfo(const nsAString& aTopic,
hal::WakeLockInformation* aWakeLockInfo);
/**
* Notify of a change in the wake lock state.
* @param aWakeLockInfo The new wake lock information.
*/
void NotifyWakeLockChange(const hal::WakeLockInformation& aWakeLockInfo);
/**
* Lock the screen orientation to the specific orientation.
* @return A promise indicating that the screen orientation has been locked.
*/
[[nodiscard]] RefPtr<GenericNonExclusivePromise> LockScreenOrientation(
const hal::ScreenOrientation& aOrientation);
/**
* Unlock the screen orientation.
*/
void UnlockScreenOrientation();
/**
* Set the priority of the given process.
*
* Exactly what this does will vary between platforms. On *nix we might give
* background processes higher nice values. On other platforms, we might
* ignore this call entirely.
*/
void SetProcessPriority(int aPid, hal::ProcessPriority aPriority);
} // namespace MOZ_HAL_NAMESPACE
} // namespace mozilla
#ifdef MOZ_DEFINED_HAL_NAMESPACE
# undef MOZ_DEFINED_HAL_NAMESPACE
# undef MOZ_HAL_NAMESPACE
#endif
#endif // mozilla_Hal_h
|
