Add iOS

ios/PhotoCaptureDelegate.swift

@@ -0,0 +1,69 @@
+//
+//  PhotoCaptureDelegate.swift
+//  Cuvent
+//
+//  Created by Marc Rousavy on 15.12.20.
+//  Copyright © 2020 Facebook. All rights reserved.
+//
+
+import AVFoundation
+
+private var delegatesReferences: [NSObject] = []
+
+class PhotoCaptureDelegate: NSObject, AVCapturePhotoCaptureDelegate {
+  private let promise: Promise
+
+  required init(promise: Promise) {
+    self.promise = promise
+    super.init()
+    delegatesReferences.append(self)
+  }
+
+  func photoOutput(_: AVCapturePhotoOutput, didFinishProcessingPhoto photo: AVCapturePhoto, error: Error?) {
+    defer {
+      delegatesReferences.removeAll(where: { $0 == self })
+    }
+    if let error = error {
+      return promise.reject(error: .capture(.unknown(message: error.localizedDescription)), cause: error as NSError)
+    }
+
+    let error = ErrorPointer(nilLiteral: ())
+    guard let tempFilePath = RCTTempFilePath("jpeg", error)
+    else {
+      return promise.reject(error: .capture(.createTempFileError), cause: error?.pointee)
+    }
+    let url = URL(string: "file://\(tempFilePath)")!
+
+    guard let data = photo.fileDataRepresentation()
+    else {
+      return promise.reject(error: .capture(.fileError))
+    }
+
+    do {
+      try data.write(to: url)
+      let exif = photo.metadata["{Exif}"] as? [String: Any]
+      let width = exif?["PixelXDimension"]
+      let height = exif?["PixelYDimension"]
+
+      return promise.resolve([
+        "path": tempFilePath,
+        "width": width as Any,
+        "height": height as Any,
+        "isRawPhoto": photo.isRawPhoto,
+        "metadata": photo.metadata,
+        "thumbnail": photo.embeddedThumbnailPhotoFormat as Any,
+      ])
+    } catch {
+      return promise.reject(error: .capture(.fileError), cause: error as NSError)
+    }
+  }
+
+  func photoOutput(_: AVCapturePhotoOutput, didFinishCaptureFor _: AVCaptureResolvedPhotoSettings, error: Error?) {
+    defer {
+      delegatesReferences.removeAll(where: { $0 == self })
+    }
+    if let error = error {
+      return promise.reject(error: .capture(.unknown(message: error.localizedDescription)), cause: error as NSError)
+    }
+  }
+}