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Last change
on this file was d565449, checked in by stefan toskovski <stefantoska84@…>, 4 weeks ago |
Update repo after prototype presentation
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1.1 KB
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1 | import { useMemo } from 'react';
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2 | import useEvent from './useEvent';
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3 | import { noop } from './misc/util';
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4 | var createKeyPredicate = function (keyFilter) {
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5 | return typeof keyFilter === 'function'
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6 | ? keyFilter
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7 | : typeof keyFilter === 'string'
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8 | ? function (event) { return event.key === keyFilter; }
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9 | : keyFilter
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10 | ? function () { return true; }
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11 | : function () { return false; };
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12 | };
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13 | var useKey = function (key, fn, opts, deps) {
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14 | if (fn === void 0) { fn = noop; }
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15 | if (opts === void 0) { opts = {}; }
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16 | if (deps === void 0) { deps = [key]; }
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17 | var _a = opts.event, event = _a === void 0 ? 'keydown' : _a, target = opts.target, options = opts.options;
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18 | var useMemoHandler = useMemo(function () {
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19 | var predicate = createKeyPredicate(key);
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20 | var handler = function (handlerEvent) {
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21 | if (predicate(handlerEvent)) {
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22 | return fn(handlerEvent);
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23 | }
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24 | };
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25 | return handler;
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26 | }, deps);
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27 | useEvent(event, useMemoHandler, target, options);
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28 | };
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29 | export default useKey;
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