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108 lines
4.0 KiB
108 lines
4.0 KiB
4 years ago
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/*
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* Copyright 2018 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 "GULApplication.h"
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NS_ASSUME_NONNULL_BEGIN
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typedef NSString *const GULAppDelegateInterceptorID;
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/** This class contains methods that isa swizzle the app delegate. */
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@interface GULAppDelegateSwizzler : NSProxy
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/** Registers an app delegate interceptor whose methods will be invoked as they're invoked on the
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* original app 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 GULAppDelegateInterceptorID if interceptor was successfully registered; nil
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* if it fails.
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*/
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+ (nullable GULAppDelegateInterceptorID)registerAppDelegateInterceptor:
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(id<GULApplicationDelegate>)interceptor;
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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)unregisterAppDelegateInterceptorWithID:(GULAppDelegateInterceptorID)interceptorID;
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/** This method ensures that the original app 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 app delegate once).
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*
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* This method doesn't proxy APNS related methods:
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* @code
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* - application:didRegisterForRemoteNotificationsWithDeviceToken:
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* - application:didFailToRegisterForRemoteNotificationsWithError:
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* - application:didReceiveRemoteNotification:fetchCompletionHandler:
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* - application:didReceiveRemoteNotification:
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* @endcode
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*
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* To proxy these methods use +[GULAppDelegateSwizzler
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* proxyOriginalDelegateIncludingAPNSMethods]. The methods have to be proxied separately to
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* avoid potential warnings from Apple review about missing Push Notification Entitlement (e.g.
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* https://github.com/firebase/firebase-ios-sdk/issues/2807)
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*
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* The method has no effect for extensions.
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*
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* @see proxyOriginalDelegateIncludingAPNSMethods
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*/
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+ (void)proxyOriginalDelegate;
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/** This method ensures that the original app delegate has been proxied including APNS related
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* methods. Call this before registering your interceptor. This method is safe to call multiple
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* times (but it only proxies the app delegate once) or
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* after +[GULAppDelegateSwizzler proxyOriginalDelegate]
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*
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* This method calls +[GULAppDelegateSwizzler proxyOriginalDelegate] under the hood.
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* After calling this method the following App Delegate methods will be proxied in addition to
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* the methods proxied by proxyOriginalDelegate:
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* @code
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* - application:didRegisterForRemoteNotificationsWithDeviceToken:
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* - application:didFailToRegisterForRemoteNotificationsWithError:
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* - application:didReceiveRemoteNotification:fetchCompletionHandler:
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* - application:didReceiveRemoteNotification:
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* @endcode
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*
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* The method has no effect for extensions.
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*
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* @see proxyOriginalDelegate
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*/
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+ (void)proxyOriginalDelegateIncludingAPNSMethods;
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/** Indicates whether app delegate proxy is explicitly disabled or enabled. Enabled by default.
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*
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* @return YES if AppDelegateProxy is Enabled, NO otherwise.
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*/
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+ (BOOL)isAppDelegateProxyEnabled;
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/** Returns the current sharedApplication.
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*
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* @return the current application instance if in an app, or nil if in extension or if it doesn't
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* exist.
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*/
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+ (nullable GULApplication *)sharedApplication;
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/** Do not initialize this class. */
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- (instancetype)init NS_UNAVAILABLE;
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NS_ASSUME_NONNULL_END
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@end
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