From 6afdb6c2b698737e63f781aba7fae71ab28106d6 Mon Sep 17 00:00:00 2001 From: ThibG Date: Tue, 6 Aug 2019 11:59:28 +0200 Subject: [Glitch] Trap tab in modals Port 5c73746b695e5bc540b41f5ae1406eac6220886e to glitch-soc Signed-off-by: Thibaut Girka --- .../flavours/glitch/components/modal_root.js | 23 ++++++++++++++++++++++ 1 file changed, 23 insertions(+) (limited to 'app/javascript/flavours/glitch') diff --git a/app/javascript/flavours/glitch/components/modal_root.js b/app/javascript/flavours/glitch/components/modal_root.js index 4e8648b49..fd0af9f6e 100644 --- a/app/javascript/flavours/glitch/components/modal_root.js +++ b/app/javascript/flavours/glitch/components/modal_root.js @@ -26,8 +26,30 @@ 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); this.history = this.context.router ? this.context.router.history : createHistory(); } @@ -60,6 +82,7 @@ export default class ModalRoot extends React.PureComponent { componentWillUnmount () { window.removeEventListener('keyup', this.handleKeyUp); + window.removeEventListener('keydown', this.handleKeyDown); } handleModalClose () { -- cgit