Files
UUVPN/iOS-SwiftUI-Code/ApplicationLibrary/Views/Abstract/ShareButton.swift
T
2025-01-28 12:28:03 +08:00

148 lines
4.3 KiB
Swift

import Foundation
import Library
import SwiftUI
#if canImport(UIKit)
import UIKit
#elseif canImport(AppKit)
import AppKit
#endif
@MainActor
public struct ProfileShareButton<Label>: View where Label: View {
private let alert: Binding<Alert?>
private let profile: Profile
private let label: () -> Label
public init(_ alert: Binding<Alert?>, _ profile: Profile, label: @escaping () -> Label) {
self.alert = alert
self.profile = profile
self.label = label
}
public var body: some View {
#if os(iOS)
if #available(iOS 17.4, *) {
bodyCompat
} else if #available(iOS 16.0, *) {
ShareLink(item: profile, subject: Text(profile.name), preview: SharePreview("Share profile"), label: label)
} else if UIDevice.current.userInterfaceIdiom != .pad {
bodyCompat
}
#else
bodyCompat
#endif
}
private var bodyCompat: some View {
ShareButtonCompat(alert, label: label) {
try profile.toContent().generateShareFile()
}
}
}
public struct ShareButtonCompat<Label>: View where Label: View {
private let label: () -> Label
private let itemURL: () throws -> URL
@Binding private var alert: Alert?
#if os(macOS)
@State private var sharePresented = false
#endif
public init(_ alert: Binding<Alert?>, @ViewBuilder label: @escaping () -> Label, itemURL: @escaping () throws -> URL) {
_alert = alert
self.label = label
self.itemURL = itemURL
}
public var body: some View {
Button(action: shareItem, label: label)
#if os(macOS)
.background(SharingServicePicker($sharePresented, $alert, itemURL))
#endif
}
private func shareItem() {
#if os(iOS)
Task {
await shareItem0()
}
#elseif os(macOS)
sharePresented = true
#endif
}
#if os(iOS)
private nonisolated func shareItem0() async {
do {
let shareItem = try itemURL()
await MainActor.run {
shareItem1(shareItem)
}
} catch {
await MainActor.run {
alert = Alert(error)
}
}
}
private func shareItem1(_ item: URL) {
if let windowScene = UIApplication.shared.connectedScenes.first as? UIWindowScene {
windowScene.keyWindow?.rootViewController?.present(UIActivityViewController(activityItems: [item], applicationActivities: nil), animated: true, completion: nil)
}
}
#endif
}
#if os(macOS)
private struct SharingServicePicker: NSViewRepresentable {
@Binding private var isPresented: Bool
@Binding private var alert: Alert?
private let item: () throws -> URL
init(_ isPresented: Binding<Bool>, _ alert: Binding<Alert?>, _ item: @escaping () throws -> URL) {
_isPresented = isPresented
_alert = alert
self.item = item
}
func makeNSView(context _: Context) -> NSView {
let view = NSView()
return view
}
func updateNSView(_ nsView: NSView, context: Context) {
if isPresented {
do {
let picker = try NSSharingServicePicker(items: [item()])
picker.delegate = context.coordinator
DispatchQueue.main.async {
picker.show(relativeTo: .zero, of: nsView, preferredEdge: .minY)
}
} catch {
alert = Alert(error)
}
}
}
func makeCoordinator() -> Coordinator {
Coordinator(self)
}
class Coordinator: NSObject, NSSharingServicePickerDelegate {
private let parent: SharingServicePicker
init(_ parent: SharingServicePicker) {
self.parent = parent
}
func sharingServicePicker(_ sharingServicePicker: NSSharingServicePicker, didChoose _: NSSharingService?) {
sharingServicePicker.delegate = nil
parent.isPresented = false
}
}
}
#endif