| 1 | "use strict";
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| 2 | Object.defineProperty(exports, "__esModule", { value: true });
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| 3 | var tslib_1 = require("tslib");
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| 4 | var react_1 = require("react");
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| 5 | var util_1 = require("./misc/util");
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| 6 | var isDeepEqual_1 = tslib_1.__importDefault(require("./misc/isDeepEqual"));
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| 7 | var nav = util_1.isNavigator ? navigator : undefined;
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| 8 | var isBatteryApiSupported = nav && typeof nav.getBattery === 'function';
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| 9 | function useBatteryMock() {
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| 10 | return { isSupported: false };
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| 11 | }
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| 12 | function useBattery() {
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| 13 | var _a = react_1.useState({ isSupported: true, fetched: false }), state = _a[0], setState = _a[1];
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| 14 | react_1.useEffect(function () {
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| 15 | var isMounted = true;
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| 16 | var battery = null;
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| 17 | var handleChange = function () {
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| 18 | if (!isMounted || !battery) {
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| 19 | return;
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| 20 | }
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| 21 | var newState = {
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| 22 | isSupported: true,
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| 23 | fetched: true,
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| 24 | level: battery.level,
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| 25 | charging: battery.charging,
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| 26 | dischargingTime: battery.dischargingTime,
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| 27 | chargingTime: battery.chargingTime,
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| 28 | };
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| 29 | !isDeepEqual_1.default(state, newState) && setState(newState);
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| 30 | };
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| 31 | nav.getBattery().then(function (bat) {
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| 32 | if (!isMounted) {
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| 33 | return;
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| 34 | }
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| 35 | battery = bat;
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| 36 | util_1.on(battery, 'chargingchange', handleChange);
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| 37 | util_1.on(battery, 'chargingtimechange', handleChange);
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| 38 | util_1.on(battery, 'dischargingtimechange', handleChange);
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| 39 | util_1.on(battery, 'levelchange', handleChange);
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| 40 | handleChange();
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| 41 | });
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| 42 | return function () {
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| 43 | isMounted = false;
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| 44 | if (battery) {
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| 45 | util_1.off(battery, 'chargingchange', handleChange);
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| 46 | util_1.off(battery, 'chargingtimechange', handleChange);
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| 47 | util_1.off(battery, 'dischargingtimechange', handleChange);
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| 48 | util_1.off(battery, 'levelchange', handleChange);
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| 49 | }
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| 50 | };
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| 51 | }, []);
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| 52 | return state;
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| 53 | }
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| 54 | exports.default = isBatteryApiSupported ? useBattery : useBatteryMock;
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