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// 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;
}
}