| /** |
| * @license |
| * Copyright (C) 2020 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. |
| */ |
| |
| /** |
| * @enum |
| */ |
| const OwnerUIStateEventType = { |
| EXPAND_SUGGESTION: 'expandSuggestion', |
| }; |
| |
| /** |
| * For states used in code owners plugin across multiple components. |
| */ |
| class OwnerUIState { |
| constructor() { |
| this._expandSuggestion = false; |
| this._listeners = new Map(); |
| this._listeners.set(OwnerUIStateEventType.EXPAND_SUGGESTION, []); |
| } |
| |
| get expandSuggestion() { |
| return this._expandSuggestion; |
| } |
| |
| set expandSuggestion(value) { |
| this._expandSuggestion = value; |
| this._listeners.get(OwnerUIStateEventType.EXPAND_SUGGESTION).forEach(cb => { |
| try { |
| cb(value); |
| } catch (e) { |
| console.warn(e); |
| } |
| }); |
| } |
| |
| _subscribeEvent(eventType, cb) { |
| this._listeners.get(eventType).push(cb); |
| return () => { |
| this._unsubscribeEvent(eventType, cb); |
| }; |
| } |
| |
| _unsubscribeEvent(eventType, cb) { |
| this._listeners.set( |
| eventType, |
| this._listeners.get(eventType).filter(handler => handler !== cb) |
| ); |
| } |
| |
| onExpandSuggestionChange(cb) { |
| return this._subscribeEvent(OwnerUIStateEventType.EXPAND_SUGGESTION, cb); |
| } |
| } |
| |
| export const ownerState = new OwnerUIState(); |