35 lines
1021 B
TypeScript
35 lines
1021 B
TypeScript
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// Copyright: Ankitects Pty Ltd and contributors
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// License: GNU AGPL, version 3 or later; http://www.gnu.org/licenses/agpl.html
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import { on } from "@tslib/events";
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interface ModalClosingHandler {
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set: (value: boolean) => void;
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remove: () => void;
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}
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/**
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* Register a keydown handler on the document that can optionally stop propagation to other handlers if Escape is pressed and the associated flag is set.
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* Intended to override the general handler in webview.py when a modal is open.
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*/
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function registerModalClosingHandler(callback?: () => void): ModalClosingHandler {
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let modalIsOpen = false;
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function set(value: boolean) {
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modalIsOpen = value;
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}
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const remove = on(document, "keydown", (event) => {
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if (event.key === "Escape" && modalIsOpen) {
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event.stopImmediatePropagation();
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if (callback) {
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callback();
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}
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}
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}, { capture: true });
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return { set, remove };
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}
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export { registerModalClosingHandler };
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