Hutch/Extensions/SRHTShareUI.swift

 1import SwiftUI
 2import UIKit
 3
 4enum SRHTShareTarget: String {
 5    case repository = "repository"
 6    case commit = "commit"
 7    case file = "file"
 8    case build = "build"
 9    case tracker = "tracker"
10    case ticket = "ticket"
11    case profile = "profile"
12
13    var fallbackMessage: String {
14        "This \(rawValue) does not have a valid web URL to share."
15    }
16}
17
18struct SRHTShareButton<Label: View>: View {
19    let url: URL?
20    let target: SRHTShareTarget
21    @ViewBuilder let label: () -> Label
22
23    @State private var isShowingShareSheet = false
24    @State private var isShowingFallbackAlert = false
25
26    var body: some View {
27        Button {
28            if url != nil {
29                isShowingShareSheet = true
30            } else {
31                isShowingFallbackAlert = true
32            }
33        } label: {
34            label()
35        }
36        .sheet(isPresented: $isShowingShareSheet) {
37            if let url {
38                ShareSheet(activityItems: [url])
39            }
40        }
41        .alert("Share Unavailable", isPresented: $isShowingFallbackAlert) {
42            Button("OK", role: .cancel) {}
43        } message: {
44            Text(target.fallbackMessage)
45        }
46    }
47}
48
49private struct ShareSheet: UIViewControllerRepresentable {
50    let activityItems: [Any]
51
52    func makeUIViewController(context: Context) -> UIActivityViewController {
53        UIActivityViewController(activityItems: activityItems, applicationActivities: nil)
54    }
55
56    func updateUIViewController(_ uiViewController: UIActivityViewController, context: Context) {}
57}