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