Tools/TestWebKitAPI/ios/UserInterfaceSwizzler.h

/*
 * Copyright (C) 2019-2020 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
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 * 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
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#pragma once

#if PLATFORM(IOS_FAMILY)

#import "InstanceMethodSwizzler.h"
#import "UIKitSPI.h"
#import <UIKit/UIKit.h>

namespace TestWebKitAPI {

template<UIUserInterfaceIdiom idiom>
class UserInterfaceSwizzler : private InstanceMethodSwizzler {
public:
    UserInterfaceSwizzler()
        : InstanceMethodSwizzler { UIDevice.class, @selector(userInterfaceIdiom), reinterpret_cast<IMP>(effectiveUserInterfaceIdiom) }
    {
        if (!UIApplication.sharedApplication) {
            UIApplicationInitialize();
            UIApplicationInstantiateSingleton(UIApplication.class);
        }
    }

private:
    static UIUserInterfaceIdiom effectiveUserInterfaceIdiom(id, SEL)
    {
        return idiom;
    }
};

using IPadUserInterfaceSwizzler = UserInterfaceSwizzler<UIUserInterfaceIdiomPad>;
using IPhoneUserInterfaceSwizzler = UserInterfaceSwizzler<UIUserInterfaceIdiomPhone>;

} // namespace TestWebKitAPI

#endif // PLATFORM(IOS_FAMILY)