vector-im/element-ios/issues/5009 - Refactored away the NSExtensionContext dependency from the ShareManager. Introduced different ShareItemProviders for the share extension and the main application. Improved item loading error handling.

RiotShareExtension/Shared/ShareItemProvider/ShareItemProviderProtocol.swift

@@ -0,0 +1,35 @@
+// 
+// Copyright 2021 New Vector Ltd
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+// http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+import Foundation
+
+@objc public enum ShareItemType: UInt {
+    case fileURL, text, URL, image, video, movie, voiceMessage, unknown
+}
+
+@objc public protocol ShareItemProtocol {
+    var type: ShareItemType { get }
+}
+
+@objc public protocol ShareItemProviderProtocol {
+    var items: [ShareItemProtocol] { get }
+    
+    func areAllItemsImages() -> Bool
+    
+    func areAllItemsLoaded() -> Bool
+    
+    func loadItem(_ item: ShareItemProtocol, completion: @escaping (Any?, Error?) -> Void)
+}