mirror of https://github.com/jkjoy/sunpeiwen.git
28 lines
661 B
JavaScript
28 lines
661 B
JavaScript
/* IMPORT */
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/* MAIN */
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class Interceptor {
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/* CONSTRUCTOR */
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constructor() {
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/* VARIABLES */
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this.callbacks = new Set();
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/* API */
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this.exit = () => {
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for (const callback of this.callbacks) {
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callback();
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}
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};
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this.hook = () => {
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window.addEventListener('beforeunload', this.exit);
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};
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this.register = (callback) => {
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this.callbacks.add(callback);
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return () => {
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this.callbacks.delete(callback);
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};
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};
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this.hook();
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}
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}
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/* EXPORT */
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export default new Interceptor();
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