blob: f8a0e089ec64b97ce78ecc82e0396bcea362f501 (
plain)
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
|
// 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/background_sync/background_sync_network_observer.h"
#include "base/location.h"
#include "base/single_thread_task_runner.h"
#include "base/thread_task_runner_handle.h"
#include "content/public/browser/browser_thread.h"
namespace content {
// static
bool BackgroundSyncNetworkObserver::ignore_network_change_notifier_ = false;
// static
void BackgroundSyncNetworkObserver::SetIgnoreNetworkChangeNotifierForTests(
bool ignore) {
ignore_network_change_notifier_ = ignore;
}
BackgroundSyncNetworkObserver::BackgroundSyncNetworkObserver(
const base::Closure& network_changed_callback)
: connection_type_(net::NetworkChangeNotifier::GetConnectionType()),
network_changed_callback_(network_changed_callback) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
net::NetworkChangeNotifier::AddNetworkChangeObserver(this);
}
BackgroundSyncNetworkObserver::~BackgroundSyncNetworkObserver() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
net::NetworkChangeNotifier::RemoveNetworkChangeObserver(this);
}
bool BackgroundSyncNetworkObserver::NetworkSufficient(
SyncNetworkState network_state) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
switch (network_state) {
case NETWORK_STATE_ANY:
return true;
case NETWORK_STATE_AVOID_CELLULAR:
// Note that this returns true for CONNECTION_UNKNOWN to avoid never
// firing.
return connection_type_ != net::NetworkChangeNotifier::CONNECTION_NONE &&
!net::NetworkChangeNotifier::IsConnectionCellular(
connection_type_);
case NETWORK_STATE_ONLINE:
return connection_type_ != net::NetworkChangeNotifier::CONNECTION_NONE;
}
NOTREACHED();
return false;
}
void BackgroundSyncNetworkObserver::OnNetworkChanged(
net::NetworkChangeNotifier::ConnectionType connection_type) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (ignore_network_change_notifier_)
return;
NotifyManagerIfNetworkChanged(connection_type);
}
void BackgroundSyncNetworkObserver::NotifyManagerIfNetworkChangedForTesting(
net::NetworkChangeNotifier::ConnectionType connection_type) {
NotifyManagerIfNetworkChanged(connection_type);
}
void BackgroundSyncNetworkObserver::NotifyManagerIfNetworkChanged(
net::NetworkChangeNotifier::ConnectionType connection_type) {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
if (connection_type == connection_type_)
return;
connection_type_ = connection_type;
NotifyNetworkChanged();
}
void BackgroundSyncNetworkObserver::NotifyNetworkChanged() {
DCHECK_CURRENTLY_ON(BrowserThread::IO);
base::ThreadTaskRunnerHandle::Get()->PostTask(FROM_HERE,
network_changed_callback_);
}
} // namespace content
|
