2024-06-07 11:41:02 +08:00

107 lines
4.1 KiB
Swift

//
// KFImage.swift
// Kingfisher
//
// Created by onevcat on 2019/06/26.
//
// Copyright (c) 2019 Wei Wang <onevcat@gmail.com>
//
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
//
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.
#if canImport(SwiftUI) && canImport(Combine)
import SwiftUI
import Combine
@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
public struct KFImage: KFImageProtocol {
public var context: Context<Image>
public init(context: Context<Image>) {
self.context = context
}
}
@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
extension Image: KFImageHoldingView {
public typealias RenderingView = Image
public static func created(from image: KFCrossPlatformImage?, context: KFImage.Context<Self>) -> Image {
Image(crossPlatformImage: image)
}
}
// MARK: - Image compatibility.
@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
extension KFImage {
public func resizable(
capInsets: EdgeInsets = EdgeInsets(),
resizingMode: Image.ResizingMode = .stretch) -> KFImage
{
configure { $0.resizable(capInsets: capInsets, resizingMode: resizingMode) }
}
public func renderingMode(_ renderingMode: Image.TemplateRenderingMode?) -> KFImage {
configure { $0.renderingMode(renderingMode) }
}
public func interpolation(_ interpolation: Image.Interpolation) -> KFImage {
configure { $0.interpolation(interpolation) }
}
public func antialiased(_ isAntialiased: Bool) -> KFImage {
configure { $0.antialiased(isAntialiased) }
}
/// Starts the loading process of `self` immediately.
///
/// By default, a `KFImage` will not load its source until the `onAppear` is called. This is a lazily loading
/// behavior and provides better performance. However, when you refresh the view, the lazy loading also causes a
/// flickering since the loading does not happen immediately. Call this method if you want to start the load at once
/// could help avoiding the flickering, with some performance trade-off.
///
/// - Deprecated: This is not necessary anymore since `@StateObject` is used for holding the image data.
/// It does nothing now and please just remove it.
///
/// - Returns: The `Self` value with changes applied.
@available(*, deprecated, message: "This is not necessary anymore since `@StateObject` is used. It does nothing now and please just remove it.")
public func loadImmediately(_ start: Bool = true) -> KFImage {
return self
}
}
#if DEBUG
@available(iOS 14.0, macOS 11.0, tvOS 14.0, watchOS 7.0, *)
struct KFImage_Previews: PreviewProvider {
static var previews: some View {
Group {
KFImage.url(URL(string: "https://raw.githubusercontent.com/onevcat/Kingfisher/master/images/logo.png")!)
.onSuccess { r in
print(r)
}
.placeholder { p in
ProgressView(p)
}
.resizable()
.aspectRatio(contentMode: .fit)
.padding()
}
}
}
#endif
#endif