blob: b110bdf54ba613f8bdd77cb42fa2da7a9402e081 (
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
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
|
// Copyright (C) 2016 BasysKom GmbH
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "androidmainnewintentlistener_p.h"
#include "android/androidjninfc_p.h"
#include "qdebug.h"
#include <QtGui/QGuiApplication>
#include <QtCore/QJniObject>
QT_BEGIN_ANDROIDNFC_NAMESPACE
MainNfcNewIntentListener::MainNfcNewIntentListener()
: listeners(), listenersLock(), paused(true), receiving(false)
{
QtAndroidPrivate::registerNewIntentListener(this);
QtAndroidPrivate::registerResumePauseListener(this);
}
MainNfcNewIntentListener::~MainNfcNewIntentListener()
{
QtAndroidPrivate::unregisterNewIntentListener(this);
QtAndroidPrivate::unregisterResumePauseListener(this);
}
bool MainNfcNewIntentListener::handleNewIntent(JNIEnv */*env*/, jobject intent)
{
// Only intents with a tag are relevant
if (!AndroidNfc::getTag(intent).isValid())
return false;
listenersLock.lockForRead();
for (AndroidNfc::AndroidNfcListenerInterface *listener : qAsConst(listeners)) {
listener->newIntent(QJniObject(intent));
}
listenersLock.unlock();
return true;
}
bool MainNfcNewIntentListener::registerListener(AndroidNfcListenerInterface *listener)
{
static bool firstListener = true;
if (firstListener) {
QJniObject intent = AndroidNfc::getStartIntent();
if (intent.isValid()) {
listener->newIntent(intent);
}
paused = static_cast<QGuiApplication*>(QGuiApplication::instance())->applicationState() != Qt::ApplicationActive;
}
firstListener = false;
listenersLock.lockForWrite();
if (!listeners.contains(listener))
listeners.push_back(listener);
listenersLock.unlock();
updateReceiveState();
return true;
}
bool MainNfcNewIntentListener::unregisterListener(AndroidNfcListenerInterface *listener)
{
listenersLock.lockForWrite();
listeners.removeOne(listener);
listenersLock.unlock();
updateReceiveState();
return true;
}
void MainNfcNewIntentListener::handleResume()
{
paused = false;
updateReceiveState();
}
void MainNfcNewIntentListener::handlePause()
{
paused = true;
updateReceiveState();
}
void MainNfcNewIntentListener::updateReceiveState()
{
if (paused) {
// We were paused while receiving, so we stop receiving.
if (receiving) {
AndroidNfc::stopDiscovery();
receiving = false;
}
return;
}
// We reach here, so we are not paused.
listenersLock.lockForRead();
// We have nfc listeners and do not receive. Switch on.
if (!listeners.isEmpty() && !receiving)
receiving = AndroidNfc::startDiscovery();
// we have no nfc listeners and do receive. Switch off.
if (listeners.isEmpty() && receiving) {
AndroidNfc::stopDiscovery();
receiving = false;
}
listenersLock.unlock();
}
QT_END_ANDROIDNFC_NAMESPACE
|
