| // 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/config.dart'; |
| import 'base/platform.dart'; |
| import 'features.dart'; |
| import 'version.dart'; |
| |
| class FlutterFeatureFlags implements FeatureFlags { |
| FlutterFeatureFlags({ |
| required FlutterVersion flutterVersion, |
| required Config config, |
| required Platform platform, |
| }) : _flutterVersion = flutterVersion, |
| _config = config, |
| _platform = platform; |
| |
| final FlutterVersion _flutterVersion; |
| final Config _config; |
| final Platform _platform; |
| |
| @override |
| bool get isLinuxEnabled => isEnabled(flutterLinuxDesktopFeature); |
| |
| @override |
| bool get isMacOSEnabled => isEnabled(flutterMacOSDesktopFeature); |
| |
| @override |
| bool get isWebEnabled => isEnabled(flutterWebFeature); |
| |
| @override |
| bool get isWindowsEnabled => isEnabled(flutterWindowsDesktopFeature); |
| |
| @override |
| bool get isAndroidEnabled => isEnabled(flutterAndroidFeature); |
| |
| @override |
| bool get isIOSEnabled => isEnabled(flutterIOSFeature); |
| |
| @override |
| bool get isFuchsiaEnabled => isEnabled(flutterFuchsiaFeature); |
| |
| @override |
| bool get areCustomDevicesEnabled => isEnabled(flutterCustomDevicesFeature); |
| |
| @override |
| bool get isSingleWidgetReloadEnabled => isEnabled(singleWidgetReload); |
| |
| @override |
| bool get isExperimentalInvalidationStrategyEnabled => isEnabled(experimentalInvalidationStrategy); |
| |
| @override |
| bool get isWindowsUwpEnabled => isEnabled(windowsUwpEmbedding); |
| |
| @override |
| bool isEnabled(Feature feature) { |
| final String currentChannel = _flutterVersion.channel; |
| final FeatureChannelSetting featureSetting = feature.getSettingForChannel(currentChannel); |
| if (!featureSetting.available) { |
| return false; |
| } |
| bool isEnabled = featureSetting.enabledByDefault; |
| if (feature.configSetting != null) { |
| final bool? configOverride = _config.getValue(feature.configSetting!) as bool?; |
| if (configOverride != null) { |
| isEnabled = configOverride; |
| } |
| } |
| if (feature.environmentOverride != null) { |
| if (_platform.environment[feature.environmentOverride]?.toLowerCase() == 'true') { |
| isEnabled = true; |
| } |
| } |
| return isEnabled; |
| } |
| } |