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robot-divkit
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,79 @@ | ||
| import Foundation | ||
|
|
||
| import BasePublic | ||
| import NetworkingPublic | ||
|
|
||
| /// Loads images for `DivKit` views. | ||
| public protocol DivImageHolderFactory { | ||
| /// Provides `ImageHolder` for an image with given `URL`. | ||
| func make(_ url: URL?, _ placeholder: ImagePlaceholder?) -> ImageHolder | ||
| } | ||
|
|
||
| extension DivImageHolderFactory { | ||
| public func make(_ url: URL?) -> ImageHolder { | ||
| make(url, nil) | ||
| } | ||
|
|
||
| public func withCache(_ cachedImageHolders: [ImageHolder]) -> DivImageHolderFactory { | ||
| if cachedImageHolders.isEmpty { | ||
| return self | ||
| } | ||
| return CachedImageHolderFactory( | ||
| imageHolderFactory: self, | ||
| cachedImageHolders: cachedImageHolders | ||
| ) | ||
| } | ||
| } | ||
|
|
||
| extension ImageHolderFactory: DivImageHolderFactory {} | ||
|
|
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| final class DefaultImageHolderFactory: DivImageHolderFactory { | ||
| private let requester: URLResourceRequesting | ||
| private let imageLoadingOptimizationEnabled: Bool | ||
|
|
||
| private let imageProcessingQueue = OperationQueue( | ||
| name: "tech.divkit.image-processing", | ||
| qos: .userInitiated | ||
| ) | ||
|
|
||
| init( | ||
| requestPerformer: URLRequestPerforming, | ||
| imageLoadingOptimizationEnabled: Bool | ||
| ) { | ||
| self.requester = NetworkURLResourceRequester(performer: requestPerformer) | ||
| self.imageLoadingOptimizationEnabled = imageLoadingOptimizationEnabled | ||
| } | ||
|
|
||
| func make(_ url: URL?, _ placeholder: ImagePlaceholder?) -> ImageHolder { | ||
| guard let url = url else { | ||
| return placeholder?.toImageHolder() ?? NilImageHolder() | ||
| } | ||
| return RemoteImageHolder( | ||
| url: url, | ||
| placeholder: placeholder, | ||
| requester: requester, | ||
| imageProcessingQueue: imageProcessingQueue, | ||
| imageLoadingOptimizationEnabled: imageLoadingOptimizationEnabled | ||
| ) | ||
| } | ||
| } | ||
|
|
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| private final class CachedImageHolderFactory: DivImageHolderFactory { | ||
| private let imageHolderFactory: DivImageHolderFactory | ||
| private let cachedImageHolders: [ImageHolder] | ||
|
|
||
| init( | ||
| imageHolderFactory: DivImageHolderFactory, | ||
| cachedImageHolders: [ImageHolder] | ||
| ) { | ||
| self.imageHolderFactory = imageHolderFactory | ||
| self.cachedImageHolders = cachedImageHolders | ||
| } | ||
|
|
||
| func make(_ url: URL?, _ placeholder: ImagePlaceholder?) -> ImageHolder { | ||
| let cachedImageHolder = cachedImageHolders.first { | ||
| $0.reused(with: placeholder, remoteImageURL: url) != nil | ||
| } | ||
| return cachedImageHolder ?? imageHolderFactory.make(url, placeholder) | ||
| } | ||
| } |
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1,3 +1,3 @@ | ||
| public enum DivKitInfo { | ||
| public static let version = "28.7.0" | ||
| public static let version = "28.8.0" | ||
| } |
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