23 lines
509 B
TypeScript
23 lines
509 B
TypeScript
import type { KeybindEvent } from "./types";
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type Listener = (event: KeybindEvent) => void;
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export class KeybindEmitter {
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private listeners: Listener[] = [];
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on(listener: Listener) {
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this.listeners.push(listener);
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return () => this.off(listener);
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}
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off(listener: Listener) {
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this.listeners = this.listeners.filter(l => l !== listener);
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}
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emit<T extends KeybindEvent["type"]>(
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event: Extract<KeybindEvent, { type: T }>
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) {
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for (const l of this.listeners) l(event);
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}
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}
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