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-//
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-// WKInterfaceImage+Kingfisher.swift
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-// Kingfisher
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-//
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-// Created by Rodrigo Borges Soares on 04/05/18.
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-//
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-// Copyright (c) 2019 Wei Wang <onevcat@gmail.com>
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-//
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-// Permission is hereby granted, free of charge, to any person obtaining a copy
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-// of this software and associated documentation files (the "Software"), to deal
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-// in the Software without restriction, including without limitation the rights
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-// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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-// copies of the Software, and to permit persons to whom the Software is
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-// furnished to do so, subject to the following conditions:
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-//
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-// The above copyright notice and this permission notice shall be included in
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-// all copies or substantial portions of the Software.
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-//
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-// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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-// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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-// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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-// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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-// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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-// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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-// THE SOFTWARE.
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-
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-#if canImport(WatchKit)
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-
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-import WatchKit
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-
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-@MainActor
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-extension KingfisherWrapper where Base: WKInterfaceImage {
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-
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- // MARK: Setting Image
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-
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- /// Sets an image to the image view with a source.
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- ///
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- /// - Parameters:
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- /// - source: The `Source` object contains information about the image.
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- /// - placeholder: A placeholder to show while retrieving the image from the given `resource`.
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- /// - options: An options set to define image setting behaviors. See `KingfisherOptionsInfo` for more.
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- /// - progressBlock: Called when the image downloading progress gets updated. If the response does not contain an
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- /// `expectedContentLength`, this block will not be called.
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- /// - completionHandler: Called when the image retrieved and set finished.
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- /// - Returns: A task represents the image downloading.
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- ///
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- /// - Note:
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- ///
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- /// Internally, this method will use `KingfisherManager` to get the requested source
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- /// Since this method will perform UI changes, you must call it from the main thread.
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- /// Both `progressBlock` and `completionHandler` will be also executed in the main thread.
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- ///
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- @discardableResult
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- public func setImage(
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- with source: Source?,
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- placeholder: KFCrossPlatformImage? = nil,
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- options: KingfisherOptionsInfo? = nil,
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- progressBlock: DownloadProgressBlock? = nil,
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- completionHandler: (@Sendable (Result<RetrieveImageResult, KingfisherError>) -> Void)? = nil) -> DownloadTask?
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- {
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- let options = KingfisherParsedOptionsInfo(KingfisherManager.shared.defaultOptions + (options ?? .empty))
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- return setImage(
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- with: source,
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- placeholder: placeholder,
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- parsedOptions: options,
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- progressBlock: progressBlock,
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- completionHandler: completionHandler
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- )
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- }
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-
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- /// Sets an image to the image view with a requested resource.
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- ///
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- /// - Parameters:
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- /// - resource: The `Resource` object contains information about the image.
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- /// - placeholder: A placeholder to show while retrieving the image from the given `resource`.
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- /// - options: An options set to define image setting behaviors. See `KingfisherOptionsInfo` for more.
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- /// - progressBlock: Called when the image downloading progress gets updated. If the response does not contain an
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- /// `expectedContentLength`, this block will not be called.
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- /// - completionHandler: Called when the image retrieved and set finished.
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- /// - Returns: A task represents the image downloading.
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- ///
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- /// - Note:
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- ///
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- /// Internally, this method will use `KingfisherManager` to get the requested resource, from either cache
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- /// or network. Since this method will perform UI changes, you must call it from the main thread.
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- /// Both `progressBlock` and `completionHandler` will be also executed in the main thread.
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- ///
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- @discardableResult
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- public func setImage(
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- with resource: Resource?,
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- placeholder: KFCrossPlatformImage? = nil,
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- options: KingfisherOptionsInfo? = nil,
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- progressBlock: DownloadProgressBlock? = nil,
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- completionHandler: (@Sendable (Result<RetrieveImageResult, KingfisherError>) -> Void)? = nil) -> DownloadTask?
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- {
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- return setImage(
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- with: resource?.convertToSource(),
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- placeholder: placeholder,
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- options: options,
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- progressBlock: progressBlock,
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- completionHandler: completionHandler)
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- }
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-
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- func setImage(
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- with source: Source?,
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- placeholder: KFCrossPlatformImage? = nil,
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- parsedOptions: KingfisherParsedOptionsInfo,
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- progressBlock: DownloadProgressBlock? = nil,
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- completionHandler: (@Sendable (Result<RetrieveImageResult, KingfisherError>) -> Void)? = nil) -> DownloadTask?
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- {
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- var mutatingSelf = self
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- guard let source = source else {
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- base.setImage(placeholder)
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- mutatingSelf.taskIdentifier = nil
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- completionHandler?(.failure(KingfisherError.imageSettingError(reason: .emptySource)))
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- return nil
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- }
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-
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- var options = parsedOptions
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- if !options.keepCurrentImageWhileLoading {
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- base.setImage(placeholder)
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- }
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-
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- let issuedIdentifier = Source.Identifier.next()
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- mutatingSelf.taskIdentifier = issuedIdentifier
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-
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- if let block = progressBlock {
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- options.onDataReceived = (options.onDataReceived ?? []) + [ImageLoadingProgressSideEffect(block)]
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- }
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-
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- let task = KingfisherManager.shared.retrieveImage(
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- with: source,
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- options: options,
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- downloadTaskUpdated: { task in
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- Task { @MainActor in mutatingSelf.imageTask = task }
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- },
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- progressiveImageSetter: { self.base.setImage($0) },
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- referenceTaskIdentifierChecker: { issuedIdentifier == self.taskIdentifier },
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- completionHandler: { result in
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- CallbackQueueMain.currentOrAsync {
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- guard issuedIdentifier == self.taskIdentifier else {
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- let reason: KingfisherError.ImageSettingErrorReason
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- do {
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- let value = try result.get()
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- reason = .notCurrentSourceTask(result: value, error: nil, source: source)
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- } catch {
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- reason = .notCurrentSourceTask(result: nil, error: error, source: source)
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- }
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- let error = KingfisherError.imageSettingError(reason: reason)
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- completionHandler?(.failure(error))
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- return
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- }
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-
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- mutatingSelf.imageTask = nil
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- mutatingSelf.taskIdentifier = nil
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-
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- switch result {
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- case .success(let value):
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- self.base.setImage(value.image)
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- completionHandler?(result)
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-
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- case .failure:
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- if let image = options.onFailureImage {
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- self.base.setImage(image)
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- }
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- completionHandler?(result)
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- }
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- }
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- }
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- )
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-
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- mutatingSelf.imageTask = task
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- return task
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- }
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-
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- // MARK: Cancelling Image
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-
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- /// Cancel the image download task bounded to the image view if it is running.
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- /// Nothing will happen if the downloading has already finished.
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- public func cancelDownloadTask() {
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- imageTask?.cancel()
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- }
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-}
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-
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-@MainActor private var taskIdentifierKey: Void?
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-@MainActor private var imageTaskKey: Void?
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-
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-// MARK: Properties
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-@MainActor
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-extension KingfisherWrapper where Base: WKInterfaceImage {
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-
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- public private(set) var taskIdentifier: Source.Identifier.Value? {
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- get {
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- let box: Box<Source.Identifier.Value>? = getAssociatedObject(base, &taskIdentifierKey)
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- return box?.value
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- }
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- set {
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- let box = newValue.map { Box($0) }
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- setRetainedAssociatedObject(base, &taskIdentifierKey, box)
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- }
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- }
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-
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- private var imageTask: DownloadTask? {
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- get { return getAssociatedObject(base, &imageTaskKey) }
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- set { setRetainedAssociatedObject(base, &imageTaskKey, newValue)}
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- }
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-}
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-#endif
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onevcat