37 lines
1.2 KiB
JavaScript
37 lines
1.2 KiB
JavaScript
import { watchEffect } from "vue";
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import { isClient } from "@vueuse/shared";
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//#region src/shared/useFocusGuards.ts
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/** Number of components which have requested interest to have focus guards */
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let count = 0;
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/**
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* Injects a pair of focus guards at the edges of the whole DOM tree
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* to ensure `focusin` & `focusout` events can be caught consistently.
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*/
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function useFocusGuards() {
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watchEffect((cleanupFn) => {
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if (!isClient) return;
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const edgeGuards = document.querySelectorAll("[data-reka-focus-guard]");
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document.body.insertAdjacentElement("afterbegin", edgeGuards[0] ?? createFocusGuard());
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document.body.insertAdjacentElement("beforeend", edgeGuards[1] ?? createFocusGuard());
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count++;
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cleanupFn(() => {
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if (count === 1) document.querySelectorAll("[data-reka-focus-guard]").forEach((node) => node.remove());
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count--;
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});
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});
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}
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function createFocusGuard() {
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const element = document.createElement("span");
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element.setAttribute("data-reka-focus-guard", "");
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element.tabIndex = 0;
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element.style.outline = "none";
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element.style.opacity = "0";
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element.style.position = "fixed";
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element.style.pointerEvents = "none";
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return element;
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}
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//#endregion
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export { useFocusGuards };
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//# sourceMappingURL=useFocusGuards.js.map
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