matrix-react-sdk
Version:
SDK for matrix.org using React
35 lines (32 loc) • 4.07 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", {
value: true
});
exports.useIsFocused = useIsFocused;
var _react = require("react");
/*
Copyright 2024 New Vector Ltd.
Copyright 2022 The Matrix.org Foundation C.I.C.
SPDX-License-Identifier: AGPL-3.0-only OR GPL-3.0-only
Please see LICENSE files in the repository root for full details.
*/
function useIsFocused() {
const [isFocused, setIsFocused] = (0, _react.useState)(false);
const timeoutIDRef = (0, _react.useRef)();
(0, _react.useEffect)(() => () => clearTimeout(timeoutIDRef.current), [timeoutIDRef]);
const onFocus = (0, _react.useCallback)(event => {
clearTimeout(timeoutIDRef.current);
if (event.type === "focus") {
setIsFocused(true);
} else {
// To avoid a blink when we switch mode between plain text and rich text mode
// We delay the unfocused action
timeoutIDRef.current = window.setTimeout(() => setIsFocused(false), 100);
}
}, [setIsFocused, timeoutIDRef]);
return {
isFocused,
onFocus
};
}
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