28 lines
945 B
TypeScript
28 lines
945 B
TypeScript
import uuidv4 from "../../func/utils/uuidv4";
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import WuhuBase from "../WuhuBase";
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export default class WindowActiveState extends WuhuBase {
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className = 'WindowActiveState';
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isFocus = false;
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uuid = uuidv4();
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constructor() {
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super();
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if (self !== top) return null;
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localStorage.setItem('whuuid', this.uuid);
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document.addEventListener('visibilitychange',
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() => (document.visibilityState !== 'hidden') && (localStorage.setItem('whuuid', this.uuid))
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);
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addEventListener('focus', () => this.isFocus = true);
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addEventListener('blur', () => this.isFocus = false);
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}
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get(): boolean {
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// 当前窗口获得了焦点 优先级最高
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if (this.isFocus) return true;
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// 可视性
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if (!document.hidden) return true;
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// 全部在后台，使用唯一id判断
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return this.uuid === localStorage.getItem('whuuid')
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}
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} |