TW-140: Setup and create PermissionHandlerService

ios/Podfile

@@ -50,6 +50,10 @@ post_install do |installer|
         'PERMISSION_MICROPHONE=1',
         ## dart: PermissionGroup.contacts
         'PERMISSION_CONTACTS=1',
+        ## dart: PermissionGroup.camera
+        'PERMISSION_CAMERA=1',
+        ## dart: PermissionGroup.photos
+        'PERMISSION_PHOTOS=1'
       ]
     end
   end

lib/utils/voip/permission_service.dart

@@ -0,0 +1,52 @@
+import 'dart:io';
+import 'package:permission_handler/permission_handler.dart';
+
+class PermissionHandlerService {
+  static final PermissionHandlerService _instance = PermissionHandlerService._internal();
+
+  factory PermissionHandlerService() {
+    return _instance;
+  }
+
+  PermissionHandlerService._internal();
+
+
+  Future<PermissionStatus> requestPermissionForPhotoActions() {
+    if (Platform.isIOS) {
+      return _handlePhotosPermissionIOSAction();
+    } else {
+      return _handlePhotosPermissionAndroidAction();
+    }
+  }
+
+  Future<PermissionStatus> _handlePhotosPermissionIOSAction() async {
+    final currentStatus = await Permission.photos.status;
+    return _handlePermission(currentStatus);
+  }
+
+  Future<PermissionStatus> _handlePhotosPermissionAndroidAction() async {
+    final currentStatus = await Permission.storage.status;
+    return _handlePermission(currentStatus);
+  }
+
+
+  Future<PermissionStatus> _handlePermission(PermissionStatus currentStatus) async {
+    switch (currentStatus) {
+      case PermissionStatus.denied:
+      case PermissionStatus.limited:
+        final newStatus = Platform.isIOS
+          ? await Permission.mediaLibrary.request()
+          : await Permission.storage.request();
+        return newStatus.isGranted ? PermissionStatus.granted : newStatus;
+
+      case PermissionStatus.granted:
+      case PermissionStatus.restricted:
+      case PermissionStatus.permanentlyDenied:
+        return currentStatus;
+    }
+  }
+
+  void goToSettingsForPermissionActions() {
+    openAppSettings();
+  }
+}

macos/Flutter/GeneratedPluginRegistrant.swift

@@ -24,6 +24,7 @@ import just_audio
 import macos_ui
 import package_info_plus_macos
 import path_provider_foundation
+import photo_manager
 import record_macos
 import share_plus_macos
 import shared_preferences_macos
@@ -52,6 +53,7 @@ func RegisterGeneratedPlugins(registry: FlutterPluginRegistry) {
   MacOSUiPlugin.register(with: registry.registrar(forPlugin: "MacOSUiPlugin"))
   FLTPackageInfoPlusPlugin.register(with: registry.registrar(forPlugin: "FLTPackageInfoPlusPlugin"))
   PathProviderPlugin.register(with: registry.registrar(forPlugin: "PathProviderPlugin"))
+  PhotoManagerPlugin.register(with: registry.registrar(forPlugin: "PhotoManagerPlugin"))
   RecordMacosPlugin.register(with: registry.registrar(forPlugin: "RecordMacosPlugin"))
   SharePlusMacosPlugin.register(with: registry.registrar(forPlugin: "SharePlusMacosPlugin"))
   SharedPreferencesPlugin.register(with: registry.registrar(forPlugin: "SharedPreferencesPlugin"))