IOSApplication.h

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// Copyright Epic Games, Inc. All Rights Reserved.
 
#pragma once
 
#include "GenericPlatform/Accessibility/GenericAccessibleInterfaces.h"
#include "GenericPlatform/GenericApplication.h"
 
class FIOSWindow;
class IModularFeature;
 
class FIOSApplication : public GenericApplication
{
public:
 
    static FIOSApplication* CreateIOSApplication();
 
 
public:
 
    virtual ~FIOSApplication();
 
    void SetMessageHandler( const TSharedRef< FGenericApplicationMessageHandler >& InMessageHandler );
#if WITH_ACCESSIBILITY
    virtual void SetAccessibleMessageHandler(const TSharedRef<FGenericAccessibleMessageHandler>& InAccessibleMessageHandler) override;
#endif
 
    virtual void PollGameDeviceState( const float TimeDelta ) override;
 
    virtual FPlatformRect GetWorkArea( const FPlatformRect& CurrentWindow ) const override;
 
    virtual TSharedRef< FGenericWindow > MakeWindow() override;
 
    virtual void AddExternalInputDevice(TSharedPtr<class IInputDevice> InputDevice);
 
#if !PLATFORM_TVOS
#if !PLATFORM_VISIONOS
    static void OrientationChanged(UIInterfaceOrientation NewOrientation);
    static void UpdateSafeZoneAfterRotation();
#endif
    static UIInterfaceOrientation CachedOrientation;
#endif
 
    virtual IInputInterface* GetInputInterface() override { return (IInputInterface*)InputInterface.Get(); }
 
    virtual bool IsGamepadAttached() const override;
 
    TSharedRef<FIOSWindow> FindWindowByAppDelegateView();
 
protected:
    virtual void InitializeWindow( const TSharedRef< FGenericWindow >& Window, const TSharedRef< FGenericWindowDefinition >& InDefinition, const TSharedPtr< FGenericWindow >& InParent, const bool bShowImmediately ) override;
 
private:
 
    FIOSApplication();
#if WITH_ACCESSIBILITY
    void OnAccessibleEventRaised(const FAccessibleEventArgs& Args);
#endif
 
    void OnInputDeviceModuleRegistered(const FName& Type, IModularFeature* ModularFeature);
 
private:
 
    TSharedPtr< class FIOSInputInterface > InputInterface;
 
    TArray< TSharedPtr<class IInputDevice> > ExternalInputDevices;
    bool bHasLoadedInputPlugins;
 
    TArray< TSharedRef< FIOSWindow > > Windows;
#if WITH_ACCESSIBILITY
    NSTimer* AccessibilityAnnouncementDelayTimer;
#endif
    
    static FCriticalSection CriticalSection;
    static bool bOrientationChanged;
 
#if !PLATFORM_TVOS
    void CacheDisplayMetrics(UIInterfaceOrientation Orientation);
#endif
};