EarlGrey/Provider/GREYElementProvider.h
//
// Copyright 2016 Google Inc.
//
// 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>
#import <EarlGrey/GREYProvider.h>
NS_ASSUME_NONNULL_BEGIN
/**
* A provider for UI elements.
*/
@interface GREYElementProvider : NSObject<GREYProvider>
/**
* Class method to initialize this provider with the specified @c elements.
*
* @param elements An array of elements that the provider is populated with.
*
* @return An instance of GREYElementProvider populated with @c elements.
*/
+ (instancetype)providerWithElements:(NSArray *)elements;
/**
* Class method to initialize this provider with the specified @c rootElements.
*
* @param rootElements An array of root elements whose entire hierarchy will populate the provider.
*
* @return An instance of GREYElementProvider with root elements set to @c rootElements.
*/
+ (instancetype)providerWithRootElements:(NSArray *)rootElements;
/**
* Class method to initialize this provider with the specified @c rootProvider.
*
* @param rootProvider A provider for root elements. The root elements and their entire hierarchy
* will populate the current provider.
*
* @return An instance of GREYElementProvider with root elements set root elements in the root
* provider and their entire hierarchy.
*/
+ (instancetype)providerWithRootProvider:(id<GREYProvider>)rootProvider;
/**
* @remark init is not an available initializer. Use the other initializers.
*/
- (instancetype)init NS_UNAVAILABLE;
/**
* Initializes this provider with the specified @c elements.
*
* @param elements Elements to populate the provider with.
*
* @return An instance of GREYElementProvider populated with @c elements.
*/
- (instancetype)initWithElements:(NSArray *)elements;
/**
* Initializes this provider with the specified @c rootElements.
*
* @param rootElements An array of root elements whose entire hierarchy will populate the provider.
*
* @return An instance of GREYElementProvider with root elements set to @c rootElements.
*/
- (instancetype)initWithRootElements:(NSArray *)rootElements;
/**
* Initializes this provider with the specified @c rootProvider.
*
* @param rootProvider A provider for root elements. The root elements and their entire hierarchy
* will populate the current provider.
*
* @return An instance of GREYElementProvider with root elements set root elements in the root
* provider and their entire hierarchy.
*/
- (instancetype)initWithRootProvider:(id<GREYProvider>)rootProvider;
/**
* Designated Initializer. Must provide exactly one @c non-nil parameter out of
* all the accepted parameters.
*
* @param rootProvider A provider for root elements. The root elements and their entire hierarchy
* will populate the current provider.
* @param rootElements An array of root elements whose entire hierarchy will populate the provider.
* @param elements An array of elements that will populate the provider.
*
* @return A GREYElementProviderInstance, initialized with at least one of the specified
* parameters.
*/
- (instancetype)initWithRootProvider:(id<GREYProvider> _Nullable)rootProvider
orRootElements:(NSArray *_Nullable)rootElements
orElements:(NSArray *_Nullable)elements NS_DESIGNATED_INITIALIZER;
#pragma mark - GREYProvider
/**
* @return An enumerator for the elements in the provider.
*/
- (NSEnumerator *)dataEnumerator;
@end
NS_ASSUME_NONNULL_END