Javascript Typescript：创建键盘事件并随时激活/停用它

我希望能够处理键盘事件，但也能够在代码中按照我的意愿停止/开始再次处理它们

我一直在阅读有关

KeyboardEvent

，以及它从

Event

继承的方式的文章，我发现我能够使用一些有用的方法来实现我想要实现的目标，例如：

• event.initEvent

• event.preventDefault

但经过一些研究，并试图把事情放在一起，我很挣扎，最终无法找到这样做的方法

为了证明我一直在努力找出解决方案的方法，我想向您展示我迄今为止的成果：

class Game {

  private gameOver: boolean = false;
  private timeOfRoundMillis: number = 5 * 1000;
  private keyboardEvent: KeyboardEvent;
  private capturedInput: string[];

  constructor() {}

  public play(): void {
    this.round();
  }

  private round(): void {

    if (!this.gameOver) {

      // I want to start capturing keys
      keyboardEvent.initEvent();

      setTimeout(() => {
        // Now I want to stop capturing keys to process the input
        keyboardEvent.preventDefault();

        this.processPlayerInput();
        this.emptyCapturedInput();
        this.round();
      }, this.timeOfRoundMillis);

    }

  }

  private processPlayerInput(): void {
      // do some stuff with 'capturedInput'
  }

  // I want to call this every time a key is pressed if 
  // capturing keyboard events is active
  private capture(e): void {
     capturedInput.push(e.keyPressed);
  }

}

可能事件是“isComposing”（布尔值，如果它正在合成，则为true）

---

font:

经过合作，我们提出了以下解决方案：

var keypress = require('keypress');

declare var process: any;

class Game {

  private gameOver: boolean = false;
  private timeOfRoundMillis: number = 5 * 1000;
  private capturedInput: string[];

  constructor() {
     keypress(process.stdin);

     process.openStdin().on('keypress', (key) => {
         // I want to call this every time a key is pressed
         this.capturedInput.push(key);
     });
     process.stdin.setRawMode(true);
  }

  public play(): void {
    this.round();
  }

  private round(): void {

    if (!this.gameOver) {

      setTimeout(() => {
        // Now I want to stop capturing keys to process the input
        this.isCapturingKeys = false;  // need to set it to true when you desire to start capturing again
        this.processPlayerInput();
        this.emptyCapturedInput();
        this.round();
      }, this.timeOfRoundMillis);

    } else {
       process.stdin.pause(); // close stdin events
    }

  }

  private processPlayerInput(): void {
      // do some stuff with 'capturedInput'
  }
}

---

这看起来不错，但我在Node.js上使用的是Typescript，所以

窗口不存在。非常感谢，你让我度过了美好的一天，它工作得非常完美！：-）为了让程序退出，我编辑了解决方案：
process.stdin.pause（）丢失