1/**************************************************************************** 2** 3** Copyright (C) 2016 The Qt Company Ltd. 4** Contact: https://www.qt.io/licensing/ 5** 6** This file is part of the plugins of the Qt Toolkit. 7** 8** $QT_BEGIN_LICENSE:LGPL$ 9** Commercial License Usage 10** Licensees holding valid commercial Qt licenses may use this file in 11** accordance with the commercial license agreement provided with the 12** Software or, alternatively, in accordance with the terms contained in 13** a written agreement between you and The Qt Company. For licensing terms 14** and conditions see https://www.qt.io/terms-conditions. For further 15** information use the contact form at https://www.qt.io/contact-us. 16** 17** GNU Lesser General Public License Usage 18** Alternatively, this file may be used under the terms of the GNU Lesser 19** General Public License version 3 as published by the Free Software 20** Foundation and appearing in the file LICENSE.LGPL3 included in the 21** packaging of this file. Please review the following information to 22** ensure the GNU Lesser General Public License version 3 requirements 23** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24** 25** GNU General Public License Usage 26** Alternatively, this file may be used under the terms of the GNU 27** General Public License version 2.0 or (at your option) the GNU General 28** Public license version 3 or any later version approved by the KDE Free 29** Qt Foundation. The licenses are as published by the Free Software 30** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31** included in the packaging of this file. Please review the following 32** information to ensure the GNU General Public License requirements will 33** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34** https://www.gnu.org/licenses/gpl-3.0.html. 35** 36** $QT_END_LICENSE$ 37** 38****************************************************************************/ 39 40#include "qiosapplicationstate.h" 41 42#include "qiosglobal.h" 43#include "qiosintegration.h" 44 45#include <qpa/qwindowsysteminterface.h> 46#include <QtCore/qcoreapplication.h> 47#include <QtCore/private/qcore_mac_p.h> 48 49#include <QtGui/private/qguiapplication_p.h> 50 51QT_BEGIN_NAMESPACE 52 53static void qRegisterApplicationStateNotifications() 54{ 55 NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter]; 56 NSOperationQueue *mainQueue = [NSOperationQueue mainQueue]; 57 58 // Map between notifications and corresponding application state. Note that 59 // there's no separate notification for moving to UIApplicationStateInactive, 60 // so we use UIApplicationWillResignActiveNotification as an intermediate. 61 using NotificationMap = QMap<NSNotificationName, UIApplicationState>; 62 static auto notifications = qt_apple_isApplicationExtension() ? NotificationMap{ 63 { NSExtensionHostWillEnterForegroundNotification, UIApplicationStateInactive }, 64 { NSExtensionHostDidBecomeActiveNotification, UIApplicationStateActive }, 65 { NSExtensionHostWillResignActiveNotification, UIApplicationStateInactive }, 66 { NSExtensionHostDidEnterBackgroundNotification, UIApplicationStateBackground }, 67 } : NotificationMap{ 68 { UIApplicationWillEnterForegroundNotification, UIApplicationStateInactive }, 69 { UIApplicationDidBecomeActiveNotification, UIApplicationStateActive }, 70 { UIApplicationWillResignActiveNotification, UIApplicationStateInactive }, 71 { UIApplicationDidEnterBackgroundNotification, UIApplicationStateBackground }, 72 }; 73 74 for (auto i = notifications.constBegin(); i != notifications.constEnd(); ++i) { 75 [notificationCenter addObserverForName:i.key() object:nil queue:mainQueue 76 usingBlock:^void(NSNotification *notification) { 77 NSRange nameRange = NSMakeRange(2, notification.name.length - 14); 78 QString reason = QString::fromNSString([notification.name substringWithRange:nameRange]); 79 QIOSApplicationState::handleApplicationStateChanged(i.value(), reason); 80 }]; 81 } 82 83 if (qt_apple_isApplicationExtension()) { 84 // Extensions are not allowed to access UIApplication, so we assume the state is active 85 QIOSApplicationState::handleApplicationStateChanged(UIApplicationStateActive, 86 QLatin1String("Extension loaded, assuming state is active")); 87 } else { 88 // Initialize correct startup state, which may not be the Qt default (inactive) 89 UIApplicationState startupState = qt_apple_sharedApplication().applicationState; 90 QIOSApplicationState::handleApplicationStateChanged(startupState, QLatin1String("Application loaded")); 91 } 92} 93Q_CONSTRUCTOR_FUNCTION(qRegisterApplicationStateNotifications) 94 95QIOSApplicationState::QIOSApplicationState() 96{ 97 if (!qt_apple_isApplicationExtension()) { 98 UIApplicationState startupState = qt_apple_sharedApplication().applicationState; 99 QIOSApplicationState::handleApplicationStateChanged(startupState, QLatin1String("Application launched")); 100 } 101} 102 103void QIOSApplicationState::handleApplicationStateChanged(UIApplicationState uiState, const QString &reason) 104{ 105 Qt::ApplicationState oldState = QGuiApplication::applicationState(); 106 Qt::ApplicationState newState = toQtApplicationState(uiState); 107 qCDebug(lcQpaApplication) << qPrintable(reason) << "- moving from" << oldState << "to" << newState; 108 109 if (QIOSIntegration *integration = QIOSIntegration::instance()) { 110 emit integration->applicationState.applicationStateWillChange(oldState, newState); 111 QWindowSystemInterface::handleApplicationStateChanged(newState); 112 emit integration->applicationState.applicationStateDidChange(oldState, newState); 113 qCDebug(lcQpaApplication) << "done moving to" << newState; 114 } else { 115 qCDebug(lcQpaApplication) << "no platform integration yet, setting state directly"; 116 QGuiApplicationPrivate::applicationState = newState; 117 } 118} 119 120Qt::ApplicationState QIOSApplicationState::toQtApplicationState(UIApplicationState state) 121{ 122 switch (state) { 123 case UIApplicationStateActive: return Qt::ApplicationActive; 124 case UIApplicationStateInactive: return Qt::ApplicationInactive; 125 case UIApplicationStateBackground: return Qt::ApplicationSuspended; 126 } 127} 128 129#include "moc_qiosapplicationstate.cpp" 130 131QT_END_NAMESPACE 132