/*
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* Copyright 2019 Google LLC
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#import <Foundation/Foundation.h>
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#import <TargetConditionals.h>
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#if !TARGET_OS_OSX
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#import <UIKit/UIKit.h>
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#endif // !TARGET_OS_OSX
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#if ((TARGET_OS_IOS || TARGET_OS_TV) && (__IPHONE_OS_VERSION_MAX_ALLOWED >= 130000))
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#define UISCENE_SUPPORTED 1
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#endif
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NS_ASSUME_NONNULL_BEGIN
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typedef NSString *const GULSceneDelegateInterceptorID;
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/** This class contains methods that isa swizzle the scene delegate. */
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@interface GULSceneDelegateSwizzler : NSProxy
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#if UISCENE_SUPPORTED
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/** Registers a scene delegate interceptor whose methods will be invoked as they're invoked on the
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* original scene delegate.
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*
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* @param interceptor An instance of a class that conforms to the application delegate protocol.
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* The interceptor is NOT retained.
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* @return A unique GULSceneDelegateInterceptorID if interceptor was successfully registered; nil
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* if it fails.
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*/
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+ (nullable GULSceneDelegateInterceptorID)registerSceneDelegateInterceptor:
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(id<UISceneDelegate>)interceptor API_AVAILABLE(ios(13.0), tvos(13.0));
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/** Unregisters an interceptor with the given ID if it exists.
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*
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* @param interceptorID The object that was generated when the interceptor was registered.
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*/
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+ (void)unregisterSceneDelegateInterceptorWithID:(GULSceneDelegateInterceptorID)interceptorID
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API_AVAILABLE(ios(13.0), tvos(13.0));
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/** Do not initialize this class. */
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- (instancetype)init NS_UNAVAILABLE;
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#endif // UISCENE_SUPPORTED
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/** This method ensures that the original scene delegate has been proxied. Call this before
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* registering your interceptor. This method is safe to call multiple times (but it only proxies
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* the scene delegate once).
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*
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* The method has no effect for extensions.
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*/
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+ (void)proxyOriginalSceneDelegate;
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/** Indicates whether scene delegate proxy is explicitly disabled or enabled. Enabled by default.
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*
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* @return YES if SceneDelegateProxy is Enabled, NO otherwise.
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*/
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+ (BOOL)isSceneDelegateProxyEnabled;
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@end
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NS_ASSUME_NONNULL_END
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