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| 1 | +#if !os(tvOS) |
| 2 | + import SwiftCrossUI |
| 3 | + import UIKit |
| 4 | + |
| 5 | + extension UIKitBackend { |
| 6 | + final class FilePickerDelegate: NSObject, UIDocumentPickerDelegate { |
| 7 | + var resultHandler: ((DialogResult<[URL]>) -> Void) |
| 8 | + |
| 9 | + init(resultHandler: @escaping (DialogResult<[URL]>) -> Void) { |
| 10 | + self.resultHandler = resultHandler |
| 11 | + } |
| 12 | + |
| 13 | + func documentPicker( |
| 14 | + _ controller: UIDocumentPickerViewController, |
| 15 | + didPickDocumentsAt urls: [URL] |
| 16 | + ) { |
| 17 | + resultHandler(.success(urls)) |
| 18 | + } |
| 19 | + |
| 20 | + func documentPickerWasCancelled(_ controller: UIDocumentPickerViewController) { |
| 21 | + resultHandler(.cancelled) |
| 22 | + } |
| 23 | + } |
| 24 | + |
| 25 | + public func showOpenDialog( |
| 26 | + fileDialogOptions: FileDialogOptions, |
| 27 | + openDialogOptions: OpenDialogOptions, |
| 28 | + window: UIWindow?, |
| 29 | + resultHandler handleResult: @escaping (DialogResult<[URL]>) -> Void |
| 30 | + ) { |
| 31 | + var allowedTypes: [String] = [] |
| 32 | + |
| 33 | + if openDialogOptions.allowSelectingDirectories { |
| 34 | + allowedTypes.append("public.directory") |
| 35 | + } |
| 36 | + |
| 37 | + // TODO(#235): Respect fileDialogOptions.allowedContentTypes and fileDialogOptions.allowOtherContentTypes |
| 38 | + if openDialogOptions.allowSelectingFiles { |
| 39 | + allowedTypes.append("public.data") |
| 40 | + } |
| 41 | + |
| 42 | + let pickerController = UIDocumentPickerViewController( |
| 43 | + documentTypes: allowedTypes, |
| 44 | + in: .import |
| 45 | + ) |
| 46 | + |
| 47 | + pickerController.allowsMultipleSelection = openDialogOptions.allowMultipleSelections |
| 48 | + pickerController.directoryURL = fileDialogOptions.initialDirectory |
| 49 | + |
| 50 | + pickerController.shouldShowFileExtensions = |
| 51 | + fileDialogOptions.allowOtherContentTypes |
| 52 | + || fileDialogOptions.allowedContentTypes.count > 1 |
| 53 | + |
| 54 | + let delegate = FilePickerDelegate(resultHandler: handleResult) |
| 55 | + pickerController.delegate = delegate |
| 56 | + self.filePickerDelegates.setObject(delegate, forKey: pickerController) |
| 57 | + |
| 58 | + guard let window = window ?? Self.mainWindow else { |
| 59 | + fatalError( |
| 60 | + "Attempting to present an open dialog before any windows have been created" |
| 61 | + ) |
| 62 | + } |
| 63 | + |
| 64 | + window.rootViewController!.present(pickerController, animated: true) |
| 65 | + } |
| 66 | + } |
| 67 | +#endif |
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