Sharkey/packages/frontend/src/scripts/focus.ts
2024-02-13 15:59:27 +00:00

32 lines
751 B
TypeScript

/*
* SPDX-FileCopyrightText: syuilo and misskey-project
* SPDX-License-Identifier: AGPL-3.0-only
*/
export function focusPrev(el: Element | null, self = false, scroll = true) {
if (el == null) return;
if (!self) el = el.previousElementSibling;
if (el) {
if (el.hasAttribute('tabindex')) {
(el as HTMLElement).focus({
preventScroll: !scroll,
});
} else {
focusPrev(el.previousElementSibling, true);
}
}
}
export function focusNext(el: Element | null, self = false, scroll = true) {
if (el == null) return;
if (!self) el = el.nextElementSibling;
if (el) {
if (el.hasAttribute('tabindex')) {
(el as HTMLElement).focus({
preventScroll: !scroll,
});
} else {
focusPrev(el.nextElementSibling, true);
}
}
}