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Add an animation when the save is complete in iOS share sheet (#74)
* WIP * async all the things! * small tweaks and cleanups * factorize some code
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,76 @@ | ||
| // | ||
| // CompletionToast.swift | ||
| // share | ||
| // | ||
| // Created by Martin Chaine on 25/09/2023. | ||
| // | ||
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| import SwiftUI | ||
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| public enum CompletionError: Error { | ||
| case description(String) | ||
| } | ||
|
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| public enum CompletionState { | ||
| case pending, success | ||
| } | ||
|
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| class ToastViewModel: ObservableObject { | ||
| @Published var state: CompletionState = .pending | ||
| } | ||
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| public struct CompletionToast: View { | ||
| let frameSize = 100.0 | ||
| let frameColor = Color.secondary.opacity(1.0) | ||
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| @ObservedObject var vm: ToastViewModel | ||
| let action: () async throws -> Void | ||
| let didSucceed: () async -> Void | ||
| let onError: (String) async -> Void | ||
| let strokeColor: Color | ||
|
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| @State private var animValue: CGFloat = .zero | ||
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| public var body: some View { | ||
| switch vm.state { | ||
| case .pending: | ||
| ProgressView() | ||
| .frame(width: frameSize, height: frameSize) | ||
| .background(frameColor) | ||
| .cornerRadius(20) | ||
| .task { | ||
| do { | ||
| try await action() | ||
| vm.state = .success | ||
| } catch CompletionError.description(let message) { | ||
| await onError(message) | ||
| } catch { | ||
| await onError("error unexpected: \(error)") | ||
| } | ||
| } | ||
| case .success: | ||
| let size = frameSize / 2 | ||
| Path { path in | ||
| path.move(to: CGPoint(x: size * 0.5, y: size)) | ||
| path.addLine(to: CGPoint(x: size * 0.9, y: size * 1.5)) | ||
| path.addLine(to: CGPoint(x: size * 1.5, y: size * 0.5)) | ||
| } | ||
| .trim(from: 0, to: animValue) | ||
| .stroke(strokeColor, style: StrokeStyle(lineWidth: 8.0, lineCap: .round, lineJoin: .round)) | ||
| .animation(.easeInOut, value: animValue) | ||
| .onAppear { animValue = 1.0 } | ||
| .frame(width: frameSize, height: frameSize) | ||
| .background(frameColor) | ||
| .cornerRadius(20) | ||
| .task { | ||
| do { | ||
| // leave the success feedback sink in the user mind | ||
| try await Task.sleep(nanoseconds: 400_000_000) | ||
| } catch { | ||
| devLog("task: couldn't wait a bit: \(error)") | ||
| } | ||
| await didSucceed() | ||
| } | ||
| } | ||
| } | ||
| } |
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