Native picker prototype

WordPress/Classes/ViewRelated/Media/MediaLibraryPicker.swift

@@ -3,33 +3,84 @@ import MobileCoreServices
 import CoreGraphics
 import Photos
 import UniformTypeIdentifiers
+import PhotosUI
 
 /// Encapsulates launching and customization of a media picker to import media from the Photos Library
-final class MediaLibraryPicker: NSObject {
+final class MediaLibraryPicker: NSObject, PHPickerViewControllerDelegate {
     private let dataSource = WPPHAssetDataSource()
 
     weak var delegate: WPMediaPickerViewControllerDelegate?
     private var blog: Blog?
 
     func presentPicker(origin: UIViewController, blog: Blog) {
         self.blog = blog
-        let options = WPMediaPickerOptions()
-        options.showMostRecentFirst = true
-        options.filter = [.all]
-        options.allowCaptureOfMedia = false
-        options.badgedUTTypes = [UTType.gif.identifier]
-        options.preferredStatusBarStyle = WPStyleGuide.preferredStatusBarStyle
-
-        let picker = WPNavigationMediaPickerViewController(options: options)
-        picker.dataSource = dataSource
-        picker.delegate = delegate
-        picker.mediaPicker.registerClass(forReusableCellOverlayViews: DisabledVideoOverlay.self)
-
-        if FeatureFlag.mediaPickerPermissionsNotice.enabled {
-            picker.mediaPicker.registerClass(forCustomHeaderView: DeviceMediaPermissionsHeader.self)
-        }
 
+        var configuration = PHPickerConfiguration(photoLibrary: .shared())
+
+        // Set the filter type according to the user’s selection.
+//        configuration.filter = filter
+        // Set the mode to avoid transcoding, if possible, if your app supports arbitrary image/video encodings.
+        configuration.preferredAssetRepresentationMode = .compatible
+        // Set the selection behavior to respect the user’s selection order.
+        configuration.selection = .ordered
+        // TODO: (kean) what should be the selection limit?
+        configuration.selectionLimit = 20
+        // Set the preselected asset identifiers with the identifiers that the app tracks.
+        // configuration.preselectedAssetIdentifiers = selectedAssetIdentifiers
+
+        let picker = PHPickerViewController(configuration: configuration)
+        picker.delegate = self
         origin.present(picker, animated: true)
+
+
+//        let options = WPMediaPickerOptions()
+//        options.showMostRecentFirst = true
+//        options.filter = [.all]
+//        options.allowCaptureOfMedia = false
+//        // TODO: (kean) how do we handle GIFs?
+//        options.badgedUTTypes = [UTType.gif.identifier]
+//        options.preferredStatusBarStyle = WPStyleGuide.preferredStatusBarStyle
+//
+//        let picker = WPNavigationMediaPickerViewController(options: options)
+//        picker.dataSource = dataSource
+//        picker.delegate = delegate
+//        picker.mediaPicker.registerClass(forReusableCellOverlayViews: DisabledVideoOverlay.self)
+//
+//        if FeatureFlag.mediaPickerPermissionsNotice.enabled {
+//            picker.mediaPicker.registerClass(forCustomHeaderView: DeviceMediaPermissionsHeader.self)
+//        }
+//
+//        origin.present(picker, animated: true)
+    }
+
+    func picker(_ picker: PHPickerViewController, didFinishPicking results: [PHPickerResult]) {
+        let result = PHAsset.fetchAssets(withLocalIdentifiers: results.compactMap(\.assetIdentifier), options: nil)
+        var assets: [PHAsset] = []
+        for index in 0..<result.count {
+            assets.append(result[index])
+        }
+        let stub = WPMediaPickerViewController()
+        self.delegate?.mediaPickerController(stub, didFinishPicking: assets)
+
+//        dismiss(animated: true)
+//
+//        let existingSelection = self.selection
+//        var newSelection = [String: PHPickerResult]()
+//        for result in results {
+//            let identifier = result.assetIdentifier!
+//            newSelection[identifier] = existingSelection[identifier] ?? result
+//        }
+//
+//        // Track the selection in case the user deselects it later.
+//        selection = newSelection
+//        selectedAssetIdentifiers = results.map(\.assetIdentifier!)
+//        selectedAssetIdentifierIterator = selectedAssetIdentifiers.makeIterator()
+//
+//        if selection.isEmpty {
+//            displayEmptyImage()
+//        } else {
+//            displayNext()
+//        }
     }
 }