Trey T
70 lines
2.0 KiB
Swift
70 lines
2.0 KiB
Swift
import SwiftUI
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import PDFKit
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struct CourseMaterialView: View {
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let weekNumber: Int
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let courseName: String
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private var resourceName: String? {
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// Only Beginner I has bundled PDFs (Beginner_I_W1.pdf … Beginner_I_W8.pdf).
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guard courseName.contains("Beginner I") else { return nil }
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return "Beginner_I_W\(weekNumber)"
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}
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private var pdfURL: URL? {
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guard let name = resourceName else { return nil }
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return Bundle.main.url(forResource: name, withExtension: "pdf")
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}
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var body: some View {
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Group {
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if let url = pdfURL {
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PDFKitView(url: url)
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.ignoresSafeArea(edges: .bottom)
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} else {
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ContentUnavailableView(
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"Material unavailable",
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systemImage: "doc.questionmark",
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description: Text("No course material is bundled for week \(weekNumber).")
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)
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}
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}
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.navigationTitle("Week \(weekNumber) Material")
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.navigationBarTitleDisplayMode(.inline)
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.toolbar {
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if let url = pdfURL {
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ToolbarItem(placement: .topBarTrailing) {
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ShareLink(item: url) {
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Image(systemName: "square.and.arrow.up")
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}
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}
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}
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}
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}
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}
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private struct PDFKitView: UIViewRepresentable {
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let url: URL
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func makeUIView(context: Context) -> PDFView {
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let view = PDFView()
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view.document = PDFDocument(url: url)
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view.autoScales = true
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view.displayMode = .singlePageContinuous
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view.displayDirection = .vertical
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view.usePageViewController(false)
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return view
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}
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func updateUIView(_ uiView: PDFView, context: Context) {
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if uiView.document?.documentURL != url {
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uiView.document = PDFDocument(url: url)
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}
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}
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}
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struct CourseMaterialDestination: Hashable {
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let courseName: String
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let weekNumber: Int
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}
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