123 lines
4.5 KiB
Swift
123 lines
4.5 KiB
Swift
//
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// KFAnimatedImage.swift
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// Kingfisher
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//
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// Created by wangxingbin on 2021/4/29.
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//
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// Copyright (c) 2021 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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#if canImport(SwiftUI) && canImport(Combine) && !os(watchOS)
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import SwiftUI
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import Combine
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@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
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public struct KFAnimatedImage: KFImageProtocol {
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public typealias HoldingView = KFAnimatedImageViewRepresenter
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public var context: Context<HoldingView>
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public init(context: KFImage.Context<HoldingView>) {
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self.context = context
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}
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/// Configures current rendering view with a `block`. This block will be applied when the under-hood
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/// `AnimatedImageView` is created in `UIViewRepresentable.makeUIView(context:)`
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///
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/// - Parameter block: The block applies to the animated image view.
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/// - Returns: A `KFAnimatedImage` view that being configured by the `block`.
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public func configure(_ block: @escaping (HoldingView.RenderingView) -> Void) -> Self {
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context.renderConfigurations.append(block)
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return self
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}
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}
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#if os(macOS)
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@available(macOS 11.0, *)
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typealias KFCrossPlatformViewRepresentable = NSViewRepresentable
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#else
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@available(iOS 14.0, tvOS 14.0, watchOS 7.0, *)
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typealias KFCrossPlatformViewRepresentable = UIViewRepresentable
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#endif
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/// A wrapped `UIViewRepresentable` of `AnimatedImageView`
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@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
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public struct KFAnimatedImageViewRepresenter: KFCrossPlatformViewRepresentable, KFImageHoldingView {
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public typealias RenderingView = AnimatedImageView
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public static func created(from image: KFCrossPlatformImage?, context: KFImage.Context<Self>) -> KFAnimatedImageViewRepresenter {
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KFAnimatedImageViewRepresenter(image: image, context: context)
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}
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var image: KFCrossPlatformImage?
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let context: KFImage.Context<KFAnimatedImageViewRepresenter>
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#if os(macOS)
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public func makeNSView(context: Context) -> AnimatedImageView {
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return makeImageView()
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}
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public func updateNSView(_ nsView: AnimatedImageView, context: Context) {
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updateImageView(nsView)
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}
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#else
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public func makeUIView(context: Context) -> AnimatedImageView {
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return makeImageView()
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}
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public func updateUIView(_ uiView: AnimatedImageView, context: Context) {
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updateImageView(uiView)
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}
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#endif
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private func makeImageView() -> AnimatedImageView {
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let view = AnimatedImageView()
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self.context.renderConfigurations.forEach { $0(view) }
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view.image = image
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// Allow SwiftUI scale (fit/fill) working fine.
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view.setContentCompressionResistancePriority(.defaultLow, for: .horizontal)
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view.setContentCompressionResistancePriority(.defaultLow, for: .vertical)
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return view
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}
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private func updateImageView(_ imageView: AnimatedImageView) {
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imageView.image = image
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}
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}
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#if DEBUG
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@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
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struct KFAnimatedImage_Previews: PreviewProvider {
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static var previews: some View {
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Group {
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KFAnimatedImage(source: .network(URL(string: "https://raw.githubusercontent.com/onevcat/Kingfisher-TestImages/master/DemoAppImage/GIF/1.gif")!))
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.onSuccess { r in
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print(r)
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}
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.placeholder {
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ProgressView()
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}
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.padding()
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}
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}
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}
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#endif
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#endif
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