34 lines
861 B
Plaintext
34 lines
861 B
Plaintext
/**
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* Copyright (c) 2018 The xterm.js authors. All rights reserved.
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* @license MIT
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*/
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import { IDisposable } from 'common/Types';
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/**
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* Adds a disposable listener to a node in the DOM, returning the disposable.
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* @param node The node to add a listener to.
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* @param type The event type.
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* @param handler The handler for the listener.
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* @param options The boolean or options object to pass on to the event
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* listener.
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*/
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export function addDisposableDomListener(
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node: Element | Window | Document,
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type: string,
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handler: (e: any) => void,
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options?: boolean | AddEventListenerOptions
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): IDisposable {
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node.addEventListener(type, handler, options);
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let disposed = false;
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return {
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dispose: () => {
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if (disposed) {
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return;
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}
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disposed = true;
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node.removeEventListener(type, handler, options);
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}
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};
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}
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