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
|
// Copyright (c) 2011 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 "chrome/browser/chromeos/cros/power_library.h"
#include "base/basictypes.h"
#include "base/compiler_specific.h"
#include "base/logging.h"
#include "base/observer_list.h"
#include "base/time.h"
#include "chrome/browser/chromeos/cros/cros_library.h"
#include "content/browser/browser_thread.h"
#include "third_party/cros/chromeos_power.h"
#include "third_party/cros/chromeos_resume.h"
namespace chromeos {
class PowerLibraryImpl : public PowerLibrary {
public:
PowerLibraryImpl()
: power_status_connection_(NULL),
resume_status_connection_(NULL),
status_(chromeos::PowerStatus()) {
}
virtual ~PowerLibraryImpl() {
if (power_status_connection_) {
chromeos::DisconnectPowerStatus(power_status_connection_);
power_status_connection_ = NULL;
}
if (resume_status_connection_) {
chromeos::DisconnectResume(resume_status_connection_);
resume_status_connection_ = NULL;
}
}
// Begin PowerLibrary implementation.
virtual void Init() OVERRIDE {
if (CrosLibrary::Get()->EnsureLoaded()) {
power_status_connection_ =
chromeos::MonitorPowerStatus(&PowerStatusChangedHandler, this);
resume_status_connection_ =
chromeos::MonitorResume(&SystemResumedHandler, this);
}
}
virtual void AddObserver(Observer* observer) OVERRIDE {
observers_.AddObserver(observer);
}
virtual void RemoveObserver(Observer* observer) OVERRIDE {
observers_.RemoveObserver(observer);
}
virtual bool line_power_on() const OVERRIDE {
return status_.line_power_on;
}
virtual bool battery_fully_charged() const OVERRIDE {
return status_.battery_state == chromeos::BATTERY_STATE_FULLY_CHARGED;
}
virtual double battery_percentage() const OVERRIDE {
return status_.battery_percentage;
}
virtual bool battery_is_present() const OVERRIDE {
return status_.battery_is_present;
}
virtual base::TimeDelta battery_time_to_empty() const OVERRIDE {
return base::TimeDelta::FromSeconds(status_.battery_time_to_empty);
}
virtual base::TimeDelta battery_time_to_full() const OVERRIDE {
return base::TimeDelta::FromSeconds(status_.battery_time_to_full);
}
virtual void EnableScreenLock(bool enable) OVERRIDE {
if (!CrosLibrary::Get()->EnsureLoaded())
return;
// Make sure we run on FILE thread becuase chromeos::EnableScreenLock
// would write power manager config file to disk.
if (!BrowserThread::CurrentlyOn(BrowserThread::FILE)) {
BrowserThread::PostTask(
BrowserThread::FILE, FROM_HERE,
NewRunnableMethod(this, &PowerLibraryImpl::EnableScreenLock, enable));
return;
}
chromeos::EnableScreenLock(enable);
}
virtual void RequestRestart() OVERRIDE {
if (CrosLibrary::Get()->EnsureLoaded())
chromeos::RequestRestart();
}
virtual void RequestShutdown() OVERRIDE {
if (CrosLibrary::Get()->EnsureLoaded())
chromeos::RequestShutdown();
}
// End PowerLibrary implementation.
private:
static void PowerStatusChangedHandler(void* object,
const chromeos::PowerStatus& status) {
PowerLibraryImpl* power = static_cast<PowerLibraryImpl*>(object);
power->UpdatePowerStatus(status);
}
static void SystemResumedHandler(void* object) {
PowerLibraryImpl* power = static_cast<PowerLibraryImpl*>(object);
power->SystemResumed();
}
void UpdatePowerStatus(const chromeos::PowerStatus& status) {
// Make sure we run on UI thread.
if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(
this, &PowerLibraryImpl::UpdatePowerStatus, status));
return;
}
DVLOG(1) << "Power lpo=" << status.line_power_on
<< " sta=" << status.battery_state
<< " per=" << status.battery_percentage
<< " tte=" << status.battery_time_to_empty
<< " ttf=" << status.battery_time_to_full;
status_ = status;
FOR_EACH_OBSERVER(Observer, observers_, PowerChanged(this));
}
void SystemResumed() {
// Make sure we run on the UI thread.
if (!BrowserThread::CurrentlyOn(BrowserThread::UI)) {
BrowserThread::PostTask(
BrowserThread::UI, FROM_HERE,
NewRunnableMethod(this, &PowerLibraryImpl::SystemResumed));
return;
}
FOR_EACH_OBSERVER(Observer, observers_, SystemResumed());
}
ObserverList<Observer> observers_;
// A reference to the power battery API, to allow callbacks when the battery
// status changes.
chromeos::PowerStatusConnection power_status_connection_;
// A reference to the resume alerts.
chromeos::ResumeConnection resume_status_connection_;
// The latest power status.
chromeos::PowerStatus status_;
DISALLOW_COPY_AND_ASSIGN(PowerLibraryImpl);
};
class PowerLibraryStubImpl : public PowerLibrary {
public:
PowerLibraryStubImpl() {}
virtual ~PowerLibraryStubImpl() {}
// Begin PowerLibrary implementation.
virtual void Init() OVERRIDE {}
virtual void AddObserver(Observer* observer) OVERRIDE {}
virtual void RemoveObserver(Observer* observer) OVERRIDE {}
virtual bool line_power_on() const OVERRIDE { return false; }
virtual bool battery_fully_charged() const OVERRIDE { return false; }
virtual double battery_percentage() const OVERRIDE { return 50.0; }
virtual bool battery_is_present() const OVERRIDE { return true; }
virtual base::TimeDelta battery_time_to_empty() const OVERRIDE {
return base::TimeDelta::FromSeconds(10 * 60);
}
virtual base::TimeDelta battery_time_to_full() const OVERRIDE {
return base::TimeDelta::FromSeconds(0);
}
virtual void EnableScreenLock(bool enable) OVERRIDE {}
virtual void RequestRestart() OVERRIDE {}
virtual void RequestShutdown() OVERRIDE {}
// End PowerLibrary implementation.
};
// static
PowerLibrary* PowerLibrary::GetImpl(bool stub) {
PowerLibrary* impl;
if (stub)
impl = new PowerLibraryStubImpl();
else
impl = new PowerLibraryImpl();
impl->Init();
return impl;
}
} // namespace chromeos
// Allows InvokeLater without adding refcounting. This class is a Singleton and
// won't be deleted until it's last InvokeLater is run.
DISABLE_RUNNABLE_METHOD_REFCOUNT(chromeos::PowerLibraryImpl);
|
