Files
Hippy/ios/sdk/component/image/HippyImageViewCustomLoader.h

65 lines
2.2 KiB
Objective-C

/*!
* iOS SDK
*
* Tencent is pleased to support the open source community by making
* Hippy available.
*
* Copyright (C) 2019 THL A29 Limited, a Tencent company.
* All rights reserved.
*
* 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 "HippyBridgeModule.h"
@class HippyImageView;
NS_ASSUME_NONNULL_BEGIN
typedef NS_OPTIONS(NSUInteger, HippyImageCustomLoaderControlOptions) {
/**
* This flag controls the HippyImageView from doing image data decoding or downsampling,
* Only takes effect when image is not null in the completion block.
*/
HippyImageCustomLoaderControl_SkipDecodeOrDownsample = 1 << 0,
};
typedef void(^HippyImageLoaderProgressBlock)(long long currentLength, long long totalLength);
typedef void(^HippyImageLoaderCompletionBlock)(NSData *_Nullable data,
NSURL * _Nonnull url,
NSError *_Nullable error,
UIImage *_Nullable image,
HippyImageCustomLoaderControlOptions options);
@protocol HippyImageViewCustomLoader <HippyBridgeModule>
@optional
- (BOOL)canHandleImageURL:(NSURL *)url;
@required
- (void)imageView:(HippyImageView *)imageView
loadAtUrl:(NSURL *)url
placeholderImage:(UIImage *)placeholderImage
progress:(HippyImageLoaderProgressBlock)progressBlock
completed:(HippyImageLoaderCompletionBlock)completedBlock;
- (void)cancelImageDownload:(UIImageView *)imageView withUrl:(NSURL *)url;
- (void)loadImage:(NSURL *)url completed:(void (^)(NSData *, NSURL *, NSError *, BOOL cached))completedBlock;
@end
NS_ASSUME_NONNULL_END