107 lines
4.1 KiB
Swift
107 lines
4.1 KiB
Swift
//
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// KFImage.swift
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// Kingfisher
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//
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// Created by onevcat on 2019/06/26.
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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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#if canImport(SwiftUI) && canImport(Combine)
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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 KFImage: KFImageProtocol {
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public var context: Context<Image>
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public init(context: Context<Image>) {
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self.context = context
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}
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}
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@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
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extension Image: KFImageHoldingView {
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public typealias RenderingView = Image
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public static func created(from image: KFCrossPlatformImage?, context: KFImage.Context<Self>) -> Image {
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Image(crossPlatformImage: image)
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}
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}
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// MARK: - Image compatibility.
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@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
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extension KFImage {
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public func resizable(
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capInsets: EdgeInsets = EdgeInsets(),
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resizingMode: Image.ResizingMode = .stretch) -> KFImage
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{
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configure { $0.resizable(capInsets: capInsets, resizingMode: resizingMode) }
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}
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public func renderingMode(_ renderingMode: Image.TemplateRenderingMode?) -> KFImage {
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configure { $0.renderingMode(renderingMode) }
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}
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public func interpolation(_ interpolation: Image.Interpolation) -> KFImage {
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configure { $0.interpolation(interpolation) }
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}
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public func antialiased(_ isAntialiased: Bool) -> KFImage {
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configure { $0.antialiased(isAntialiased) }
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}
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/// Starts the loading process of `self` immediately.
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///
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/// By default, a `KFImage` will not load its source until the `onAppear` is called. This is a lazily loading
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/// behavior and provides better performance. However, when you refresh the view, the lazy loading also causes a
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/// flickering since the loading does not happen immediately. Call this method if you want to start the load at once
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/// could help avoiding the flickering, with some performance trade-off.
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///
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/// - Deprecated: This is not necessary anymore since `@StateObject` is used for holding the image data.
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/// It does nothing now and please just remove it.
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///
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/// - Returns: The `Self` value with changes applied.
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@available(*, deprecated, message: "This is not necessary anymore since `@StateObject` is used. It does nothing now and please just remove it.")
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public func loadImmediately(_ start: Bool = true) -> KFImage {
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return self
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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 KFImage_Previews: PreviewProvider {
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static var previews: some View {
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Group {
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KFImage.url(URL(string: "https://raw.githubusercontent.com/onevcat/Kingfisher/master/images/logo.png")!)
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.onSuccess { r in
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print(r)
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}
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.placeholder { p in
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ProgressView(p)
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}
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.resizable()
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.aspectRatio(contentMode: .fit)
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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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