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| -rw-r--r-- | app/javascript/mastodon/components/modal_root.js | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/app/javascript/mastodon/components/modal_root.js b/app/javascript/mastodon/components/modal_root.js index ef1156571..5d4f4bbe1 100644 --- a/app/javascript/mastodon/components/modal_root.js +++ b/app/javascript/mastodon/components/modal_root.js @@ -21,8 +21,30 @@ export default class ModalRoot extends React.PureComponent { } } + handleKeyDown = (e) => { + if (e.key === 'Tab') { + const focusable = Array.from(this.node.querySelectorAll('button:not([disabled]), [href], input:not([disabled]), select:not([disabled]), textarea:not([disabled]), [tabindex]:not([tabindex="-1"])')).filter((x) => window.getComputedStyle(x).display !== 'none'); + const index = focusable.indexOf(e.target); + + let element; + + if (e.shiftKey) { + element = focusable[index - 1] || focusable[focusable.length - 1]; + } else { + element = focusable[index + 1] || focusable[0]; + } + + if (element) { + element.focus(); + e.stopPropagation(); + e.preventDefault(); + } + } + } + componentDidMount () { window.addEventListener('keyup', this.handleKeyUp, false); + window.addEventListener('keydown', this.handleKeyDown, false); } componentWillReceiveProps (nextProps) { @@ -52,6 +74,7 @@ export default class ModalRoot extends React.PureComponent { componentWillUnmount () { window.removeEventListener('keyup', this.handleKeyUp); + window.removeEventListener('keydown', this.handleKeyDown); } getSiblings = () => { |