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/*
* Copyright 2017 Google
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#import <Foundation/Foundation.h>
NS_ASSUME_NONNULL_BEGIN
@protocol FIRAuthUIDelegate;
/** @typedef FIRAuthURLPresentationCompletion
@brief The type of block invoked when the URLPresentation completes.
@param callbackURL The callback URL if the presentation ends with a matching callback.
@param error The error if the presentation fails to start or ends with an error.
*/
typedef void (^FIRAuthURLPresentationCompletion)(NSURL *_Nullable callbackURL,
NSError *_Nullable error);
/** @typedef FIRAuthCallbackMatcher
@brief The type of block invoked for checking whether a callback URL matches.
@param callbackURL The callback URL to check for match.
@return Whether or not the specific callback URL matches or not.
*/
typedef BOOL (^FIRAuthURLCallbackMatcher)(NSURL * _Nullable callbackURL);
/** @class FIRAuthURLPresenter
@brief A Class responsible for presenting URL via SFSafariViewController or UIWebView.
*/
@interface FIRAuthURLPresenter : NSObject
/** @fn presentURL:UIDelegate:callbackMatcher:completion:
@brief Presents an URL to interact with user.
@param URL The URL to present.
@param UIDelegate The UI delegate to present view controller.
@param completion A block to be called either synchronously if the presentation fails to start,
or asynchronously in future on an unspecified thread once the presentation finishes.
*/
- (void)presentURL:(NSURL *)URL
UIDelegate:(nullable id<FIRAuthUIDelegate>)UIDelegate
callbackMatcher:(FIRAuthURLCallbackMatcher)callbackMatcher
completion:(FIRAuthURLPresentationCompletion)completion;
/** @fn canHandleURL:
@brief Determines if a URL was produced by the currently presented URL.
@param URL The URL to handle.
@return Whether the URL could be handled or not.
*/
- (BOOL)canHandleURL:(NSURL *)URL;
@end
NS_ASSUME_NONNULL_END
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