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// Copyright (C) 2022 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#include "qdarwinpermissionplugin_p.h"
QT_BEGIN_NAMESPACE
QDarwinPermissionPlugin::QDarwinPermissionPlugin(QDarwinPermissionHandler *handler)
: QPermissionPlugin()
, m_handler(handler)
{
}
QDarwinPermissionPlugin::~QDarwinPermissionPlugin()
{
[m_handler release];
}
Qt::PermissionStatus QDarwinPermissionPlugin::checkPermission(const QPermission &permission)
{
return [m_handler checkPermission:permission];
}
void QDarwinPermissionPlugin::requestPermission(const QPermission &permission, const PermissionCallback &callback)
{
if (!verifyUsageDescriptions(permission)) {
callback(Qt::PermissionStatus::Denied);
return;
}
[m_handler requestPermission:permission withCallback:[=](Qt::PermissionStatus status) {
// In case the callback comes in on a secondary thread we need to marshal it
// back to the main thread. And if it doesn't, we still want to propagate it
// via an event, to avoid any GCD locks deadlocking the application on iOS
// if the user responds to the result by running a nested event loop.
// Luckily Qt::QueuedConnection gives us exactly what we need.
QMetaObject::invokeMethod(this, "permissionUpdated", Qt::QueuedConnection,
Q_ARG(Qt::PermissionStatus, status), Q_ARG(PermissionCallback, callback));
}];
}
void QDarwinPermissionPlugin::permissionUpdated(Qt::PermissionStatus status, const PermissionCallback &callback)
{
callback(status);
}
bool QDarwinPermissionPlugin::verifyUsageDescriptions(const QPermission &permission)
{
// FIXME: Look up the responsible process and inspect that,
// as that's what needs to have the usage descriptions.
// FIXME: Verify entitlements if the process is sandboxed.
auto *infoDictionary = NSBundle.mainBundle.infoDictionary;
for (auto description : [m_handler usageDescriptionsFor:permission]) {
if (!infoDictionary[description.toNSString()]) {
qCWarning(lcPermissions) <<
"Requesting" << permission.type().name() <<
"requires" << description << "in Info.plist";
return false;
}
}
return true;
}
QT_END_NAMESPACE
QT_USE_NAMESPACE
@implementation QDarwinPermissionHandler
- (Qt::PermissionStatus)checkPermission:(QPermission)permission
{
Q_UNREACHABLE(); // All handlers should at least provide a check
}
- (void)requestPermission:(QPermission)permission withCallback:(PermissionCallback)callback
{
Q_UNUSED(permission);
qCWarning(lcPermissions).nospace() << "Could not request " << permission.type().name() << ". "
<< "Please make sure you have included the required usage description in your Info.plist";
callback(Qt::PermissionStatus::Denied);
}
- (QStringList)usageDescriptionsFor:(QPermission)permission
{
return {};
}
@end
#include "moc_qdarwinpermissionplugin_p.cpp"
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