quiwindow.mm

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// Copyright (C) 2024 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 "quiwindow.h"
 
#include "qiostheme.h"
 
#include <QtCore/qscopedvaluerollback.h>
 
#include <QtGui/private/qguiapplication_p.h>
#include <QtGui/qpa/qplatformtheme.h>
 
#include <UIKit/UIKit.h>
 
@implementation QUIWindow
 
- (instancetype)initWithFrame:(CGRect)frame
{
    if ((self = [super initWithFrame:frame]))
        self->_sendingEvent = NO;
 
    return self;
}
 
- (instancetype)initWithWindowScene:(UIWindowScene *)windowScene
{
    if ((self = [super initWithWindowScene:windowScene]))
        self->_sendingEvent = NO;
 
    QIOSTheme::applyTheme(self);
    return self;
}
 
- (void)sendEvent:(UIEvent *)event
{
    QScopedValueRollback<BOOL> sendingEvent(self->_sendingEvent, YES);
    [super sendEvent:event];
}
 
#if !defined(Q_OS_VISIONOS)
- (void)traitCollectionDidChange:(UITraitCollection *)previousTraitCollection
{
    [super traitCollectionDidChange:previousTraitCollection];
 
    if (!qGuiApp)
        return;
 
    Qt::ColorScheme colorScheme = self.traitCollection.userInterfaceStyle
                              == UIUserInterfaceStyleDark
                              ? Qt::ColorScheme::Dark
                              : Qt::ColorScheme::Light;
 
    if (self.screen == UIScreen.mainScreen) {
        // Check if the current userInterfaceStyle reports a different appearance than
        // the platformTheme's appearance. We might have set that one based on the UIScreen
        if (previousTraitCollection.userInterfaceStyle != self.traitCollection.userInterfaceStyle
            || QGuiApplicationPrivate::platformTheme()->colorScheme() != colorScheme) {
            QIOSTheme::initializeSystemPalette();
            QWindowSystemInterface::handleThemeChange<QWindowSystemInterface::SynchronousDelivery>();
        }
    }
}
#endif
 
@end