| // |
| // Copyright 2018 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 <UIKit/UIKit.h> |
| |
| #import "GTXCommon.h" |
| |
| NS_ASSUME_NONNULL_BEGIN |
| |
| /** |
| * Protocol for performing accessibility checks. |
| */ |
| @protocol GTXChecking<NSObject> |
| |
| /** |
| * Performs the check on the given @c element. |
| * |
| * @param element The target element on which GTX check is to be performed. |
| * @param[out] errorOrNil The error set on failure. The error returned can be @c nil, signifying |
| * that the check succeeded. |
| * |
| * @return @c YES if the check performed succeeded without any errors, else @c NO. |
| */ |
| - (BOOL)check:(id)element error:(GTXErrorRefType)errorOrNil; |
| |
| /** |
| * @return A name of this GTXCheck, this will be used in the logs and or reports and so must |
| * uniquely identify the check. |
| */ |
| - (NSString *)name; |
| |
| @end |
| |
| NS_ASSUME_NONNULL_END |
