| // Copyright (C) 2022 The Android Open Source Project |
| // |
| // 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 {RecordingError} from '../recording_error_handling'; |
| import { |
| OnTargetChangeCallback, |
| RecordingTargetV2, |
| TargetFactory, |
| } from '../recording_interfaces_v2'; |
| import {isLinux, isMacOs} from '../recording_utils'; |
| import {targetFactoryRegistry} from '../target_factory_registry'; |
| import {HostOsTarget} from '../targets/host_os_target'; |
| |
| export const HOST_OS_TARGET_FACTORY = 'HostOsTargetFactory'; |
| |
| export class HostOsTargetFactory implements TargetFactory { |
| readonly kind = HOST_OS_TARGET_FACTORY; |
| private target?: HostOsTarget; |
| private onTargetChange: OnTargetChangeCallback = () => {}; |
| |
| connectNewTarget(): Promise<RecordingTargetV2> { |
| throw new RecordingError( |
| 'Can not create a new Host OS target.' + |
| 'The Host OS target is created at factory initialisation.'); |
| } |
| |
| getName(): string { |
| return 'HostOs'; |
| } |
| |
| listRecordingProblems(): string[] { |
| return []; |
| } |
| |
| listTargets(): RecordingTargetV2[] { |
| if (this.target) { |
| return [this.target]; |
| } |
| return []; |
| } |
| |
| tryEstablishWebsocket(websocketUrl: string) { |
| if (this.target) { |
| if (this.target.getUrl() === websocketUrl) { |
| return; |
| } else { |
| this.target.disconnect(); |
| } |
| } |
| this.target = new HostOsTarget( |
| websocketUrl, this.maybeClearTarget.bind(this), this.onTargetChange); |
| this.onTargetChange(); |
| } |
| |
| maybeClearTarget(target: HostOsTarget): void { |
| if (this.target === target) { |
| this.target = undefined; |
| this.onTargetChange(); |
| } |
| } |
| |
| setOnTargetChange(onTargetChange: OnTargetChangeCallback): void { |
| this.onTargetChange = onTargetChange; |
| } |
| } |
| |
| // We instantiate the host target factory only on Mac and Linux. |
| if (isMacOs(navigator.userAgent) || isLinux(navigator.userAgent)) { |
| targetFactoryRegistry.register(new HostOsTargetFactory()); |
| } |