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3 Commits

Author SHA1 Message Date
Aleksandr Gumroian
9e2278e016
Update Snapshots 2024-09-17 14:33:41 +02:00
Aleksandr Gumroian
83a6ff75f6
Refactor Alert component to use useFocusTrap hook 2024-09-17 14:33:19 +02:00
Aleksandr Gumroian
02f3803265
Refactor Modal component to use useFocusTrap hook 2024-09-17 14:13:26 +02:00
5 changed files with 48 additions and 40 deletions

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@ -5,10 +5,12 @@
* See /LICENSE for more information. * See /LICENSE for more information.
*/ */
import React from "react"; import React, { useRef } from "react";
import PropTypes from "prop-types"; import PropTypes from "prop-types";
import { useFocusTrap } from "../utils/hooks";
export const ALERT_TYPES = Object.freeze({ export const ALERT_TYPES = Object.freeze({
PRIMARY: "primary", PRIMARY: "primary",
SECONDARY: "secondary", SECONDARY: "secondary",
@ -37,11 +39,15 @@ Alert.defaultProps = {
}; };
function Alert({ type, onDismiss, children }) { function Alert({ type, onDismiss, children }) {
const alertRef = useRef();
useFocusTrap(alertRef, !!onDismiss);
return ( return (
<div <div
ref={alertRef}
className={`alert alert-${type} ${ className={`alert alert-${type} ${
onDismiss ? "alert-dismissible" : "" onDismiss ? "alert-dismissible" : ""
}`.trim()} }`.trim()}
role="alert"
> >
{onDismiss && ( {onDismiss && (
<button <button

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@ -33,7 +33,7 @@ export function Modal({ shown, setShown, scrollable, size, children }) {
let modalSize = "modal-"; let modalSize = "modal-";
useClickOutside(modalRef, () => setShown(false)); useClickOutside(modalRef, () => setShown(false));
useFocusTrap(modalRef); useFocusTrap(modalRef, shown);
useEffect(() => { useEffect(() => {
const handleEsc = (event) => { const handleEsc = (event) => {
@ -46,7 +46,7 @@ export function Modal({ shown, setShown, scrollable, size, children }) {
return () => { return () => {
window.removeEventListener("keydown", handleEsc); window.removeEventListener("keydown", handleEsc);
}; };
}, [shown]); }, [setShown]);
switch (size) { switch (size) {
case "sm": case "sm":

View File

@ -6,6 +6,8 @@ exports[`<RebootButton/> Render modal. 1`] = `
id="modal-container" id="modal-container"
> >
<div <div
aria-labelledby="modal-title"
aria-modal="true"
class="modal fade show" class="modal fade show"
role="dialog" role="dialog"
> >
@ -19,11 +21,11 @@ exports[`<RebootButton/> Render modal. 1`] = `
<div <div
class="modal-header" class="modal-header"
> >
<h5 <h1
class="modal-title" class="modal-title fs-5"
> >
Warning! Warning!
</h5> </h1>
<button <button
aria-label="Close" aria-label="Close"
class="btn-close" class="btn-close"

View File

@ -7,6 +7,7 @@ exports[`AlertContext should render alert 1`] = `
> >
<div <div
class="alert alert-danger alert-dismissible" class="alert alert-danger alert-dismissible"
role="alert"
> >
<button <button
aria-label="Close" aria-label="Close"

View File

@ -41,40 +41,39 @@ export function useClickOutside(element, callback) {
}); });
} }
/* Trap focus inside modal. */ /* Trap focus inside element. */
export function useFocusTrap(modalRef) { export function useFocusTrap(elementRef, condition = true) {
useEffect(() => { useEffect(() => {
if (shown) { if (!condition) {
const modal = modalRef.current; return;
const focusableElements = modal.querySelectorAll(
'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'
);
const firstElement = focusableElements[0];
const lastElement = focusableElements[focusableElements.length - 1];
const handleTab = (event) => {
if (event.key === "Tab") {
if (event.shiftKey) {
if (document.activeElement === firstElement) {
lastElement.focus();
event.preventDefault();
}
} else {
if (document.activeElement === lastElement) {
firstElement.focus();
event.preventDefault();
}
}
}
};
modal.addEventListener("keydown", handleTab);
firstElement.focus();
return () => {
modal.removeEventListener("keydown", handleTab);
};
} }
}, [shown]); const currentElement = elementRef.current;
const focusableElements = currentElement.querySelectorAll(
'button, [href], input, select, textarea, [tabindex]:not([tabindex="-1"])'
);
const firstElement = focusableElements[0];
const lastElement = focusableElements[focusableElements.length - 1];
const handleTab = (event) => {
if (event.key === "Tab") {
if (event.shiftKey) {
if (document.activeElement === firstElement) {
lastElement.focus();
event.preventDefault();
}
} else if (document.activeElement === lastElement) {
firstElement.focus();
event.preventDefault();
}
}
};
currentElement.addEventListener("keydown", handleTab);
firstElement.focus();
return () => {
currentElement.removeEventListener("keydown", handleTab);
};
}, [elementRef, condition]);
} }