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1/*
2 * Copyright (c) 2023 Hunan OpenValley Digital Industry Development Co., Ltd.
3 * Licensed under the Apache License, Version 2.0 (the "License")
4 * you may not use this file except in compliance with the License.
5 * You may obtain a copy of the License at
6 *
7 *  http://www.apache.org/licenses/LICENSE-2.0
8 *
9 * Unless required by applicable law or agreed to in writing, software
10 * distributed under the License is distributed on an "AS IS" BASIS,
11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 * See the License for the specific language governing permissions and
13 * limitations under the License.
14 */
15import Logger from '../utils/Logger';
16import window from '@ohos.window';
17import common from '@ohos.app.ability.common';
18import display from '@ohos.display';
19
20const TAG = 'FloatWindowController';
21const FLOAT_SIZE = vp2px(120);
22
23/**
24 * 悬浮窗控制类
25 */
26export default class FloatWindowController {
27
28  // 创建单例模式
29  private static mInstance: FloatWindowController | null = null;
30
31  public static getInstance(): FloatWindowController {
32    if (FloatWindowController.mInstance == null) {
33      FloatWindowController.mInstance = new FloatWindowController();
34    }
35    return FloatWindowController.mInstance;
36  }
37
38  private constructor() {
39    // 私有化构造函数
40  }
41
42  private floatWindow: window.Window | null = null;
43  private windowStage: window.WindowStage | null = null;
44
45  //ability调用，监听windowStage状态变化
46  async initWindowStage(context: common.UIAbilityContext, windowStage: window.WindowStage) {
47    this.windowStage = windowStage;
48    let mainWin = await windowStage.getMainWindow();
49
50    await mainWin.setWindowSystemBarProperties({
51      statusBarColor: '#182431',
52      navigationBarColor: '#182431'
53    });
54
55    windowStage.on('windowStageEvent', (event: window.WindowStageEventType) => {
56      if (event === window.WindowStageEventType.SHOWN) {
57        this.destroyFloatWindow();
58      } else if (event === window.WindowStageEventType.HIDDEN) {
59        this.createAndShowFloatWindow(context);
60      }
61    });
62  }
63
64  //此处有一个bug，当前ability调用windowStage.getMainWindow().hide()方法，会与上一个ability一起hide
65  async hideMain() {
66    if(this.windowStage){
67      let mainWin: window.Window = await this.windowStage.getMainWindow();
68      mainWin.hide();
69    }
70  }
71
72  //创建悬浮窗
73  private async createAndShowFloatWindow(context: common.UIAbilityContext) {
74    if (context.isTerminating()) {
75      return;
76    }
77
78    Logger.info(TAG,` createAndShowWindow`);
79    try {
80      let w = display.getDefaultDisplaySync().width;
81      // 创建应用子窗口
82      this.floatWindow = await window.createWindow({
83        name: 'DemoFloatWindow',
84        windowType: window.WindowType.TYPE_FLOAT,
85        ctx: context
86      });
87      await this.floatWindow.moveWindowTo(w - FLOAT_SIZE, FLOAT_SIZE * 2);
88      await this.floatWindow.resize(FLOAT_SIZE, FLOAT_SIZE);
89      await this.floatWindow.setUIContent('pages/Float');
90      this.floatWindow.setWindowBackgroundColor('#00000000');
91      await this.floatWindow.showWindow();
92    } catch (err) {
93      Logger.error(TAG,`createSubWindow failed, code is ${err.code}, message is ${err.message}`);
94    }
95  }
96
97  // 销毁悬浮窗
98  public async destroyFloatWindow() {
99    Logger.info(TAG,` destroyWindow`);
100    if (this.floatWindow) {
101      await this.floatWindow.destroyWindow();
102    }
103  }
104}
105