react-use
Version:
Collection of React Hooks
33 lines (32 loc) • 1.31 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
var react_1 = require("react");
var util_1 = require("./misc/util");
// kudos: https://usehooks.com/
var useHoverDirty = function (ref, enabled) {
if (enabled === void 0) { enabled = true; }
if (process.env.NODE_ENV === 'development') {
if (typeof ref !== 'object' || typeof ref.current === 'undefined') {
console.error('useHoverDirty expects a single ref argument.');
}
}
var _a = react_1.useState(false), value = _a[0], setValue = _a[1];
react_1.useEffect(function () {
var onMouseOver = function () { return setValue(true); };
var onMouseOut = function () { return setValue(false); };
if (enabled && ref && ref.current) {
util_1.on(ref.current, 'mouseover', onMouseOver);
util_1.on(ref.current, 'mouseout', onMouseOut);
}
// fixes react-hooks/exhaustive-deps warning about stale ref elements
var current = ref.current;
return function () {
if (enabled && current) {
util_1.off(current, 'mouseover', onMouseOver);
util_1.off(current, 'mouseout', onMouseOut);
}
};
}, [enabled, ref]);
return value;
};
exports.default = useHoverDirty;