| // Copyright 2014 The Flutter Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| import '../../base/file_system.dart'; |
| import '../../base/project_migrator.dart'; |
| import '../../xcode_project.dart'; |
| |
| const String _kDisableMinimumFrameDurationKey = 'CADisableMinimumFrameDurationOnPhone'; |
| |
| /// Add "CADisableMinimumFrameDurationOnPhone: true" to the Info.plist. |
| class MinimumFrameDurationMigration extends ProjectMigrator { |
| MinimumFrameDurationMigration( |
| IosProject project, |
| super.logger, |
| ) : _infoPlist = project.defaultHostInfoPlist; |
| |
| final File _infoPlist; |
| |
| @override |
| bool migrate() { |
| if (!_infoPlist.existsSync()) { |
| logger.printTrace('Info.plist not found, skipping minimum frame duration migration.'); |
| return true; |
| } |
| |
| processFileLines(_infoPlist); |
| return true; |
| } |
| |
| @override |
| String migrateFileContents(String fileContents) { |
| if (fileContents.contains(_kDisableMinimumFrameDurationKey)) { |
| // No migration needed if the key already exits. |
| return fileContents; |
| } |
| logger.printTrace('Adding $_kDisableMinimumFrameDurationKey to Info.plist'); |
| const String plistEnd = ''' |
| </dict> |
| </plist> |
| '''; |
| const String plistWithKey = ''' |
| <key>$_kDisableMinimumFrameDurationKey</key> |
| <true/> |
| </dict> |
| </plist> |
| '''; |
| |
| return fileContents.replaceAll(plistEnd, plistWithKey); |
| } |
| } |