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ScreenOrientationProviderIOS.mm
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ScreenOrientationProviderIOS.mm
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/*
* Copyright (C) 2022 Apple Inc. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
* THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGE.
*/
#import "config.h"
#if PLATFORM(IOS_FAMILY)
#import "ScreenOrientationProvider.h"
#import <pal/ios/UIKitSoftLink.h>
@interface WebScreenOrientationObserver : NSObject
@property (nonatomic) WebCore::ScreenOrientationProvider* provider;
@end
@implementation WebScreenOrientationObserver {
}
- (WebScreenOrientationObserver *)initWithProvider:(WebCore::ScreenOrientationProvider&)provider
{
self = [super init];
if (!self)
return nil;
_provider = &provider;
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_screenOrientationDidChange) name:PAL::get_UIKit_UIApplicationDidChangeStatusBarOrientationNotification() object:nil];
return self;
}
- (void)dealloc
{
[[NSNotificationCenter defaultCenter] removeObserver:self name:PAL::get_UIKit_UIApplicationDidChangeStatusBarOrientationNotification() object:nil];
[super dealloc];
}
- (void)_screenOrientationDidChange
{
// We need to make sure we notify the client on the main thread.
callOnMainRunLoop([self, protectedSelf = RetainPtr<WebScreenOrientationObserver>(self)] {
if (_provider)
_provider->screenOrientationDidChange();
});
}
@end
namespace WebCore {
std::optional<ScreenOrientationType> ScreenOrientationProvider::platformCurrentOrientation()
{
auto window = m_window.get();
if (!window)
return std::nullopt;
UIWindowScene *scene = window.get().windowScene;
switch ([scene interfaceOrientation]) {
case UIInterfaceOrientationUnknown:
case UIInterfaceOrientationPortrait:
break;
case UIInterfaceOrientationPortraitUpsideDown:
return WebCore::ScreenOrientationType::PortraitSecondary;
case UIInterfaceOrientationLandscapeLeft:
return WebCore::ScreenOrientationType::LandscapeSecondary;
case UIInterfaceOrientationLandscapeRight:
return WebCore::ScreenOrientationType::LandscapePrimary;
}
return WebCore::ScreenOrientationType::PortraitPrimary;
}
void ScreenOrientationProvider::platformStartListeningForChanges()
{
ASSERT(!m_systemObserver);
m_systemObserver = adoptNS([[WebScreenOrientationObserver alloc] initWithProvider:*this]);
}
void ScreenOrientationProvider::platformStopListeningForChanges()
{
if (!m_systemObserver)
return;
m_systemObserver.get().provider = nullptr;
m_systemObserver = nullptr;
}
void ScreenOrientationProvider::setWindow(UIWindow *window)
{
m_window = window;
if (window)
screenOrientationDidChange();
}
} // namespace WebCore
#endif // PLATFORM(IOS_FAMILY)