63 lines
2.3 KiB
JavaScript
63 lines
2.3 KiB
JavaScript
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"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = useWindowDimensions;
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var React = _interopRequireWildcard(require("react"));
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var _reactNative = require("react-native");
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function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }
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function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }
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// This is similar to the new useWindowDimensions hook in react-native
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// However, we have a custom implementation to support older RN versions
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function useWindowDimensions() {
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const [dimensions, setDimensions] = React.useState(() => {
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// `height` and `width` maybe undefined during SSR, so we initialize them
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const {
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height = 0,
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width = 0
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} = _reactNative.Dimensions.get('window');
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return {
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height,
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width
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};
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});
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React.useEffect(() => {
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const onChange = ({
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window
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}) => {
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const {
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width,
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height
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} = window;
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setDimensions(d => {
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if (width === d.width && height === d.height) {
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return d;
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}
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return {
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width,
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height
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};
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});
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}; // We might have missed an update before the listener was added
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// So make sure to update the dimensions
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onChange({
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window: _reactNative.Dimensions.get('window')
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});
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_reactNative.Dimensions.addEventListener('change', onChange);
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return () => _reactNative.Dimensions.removeEventListener('change', onChange);
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}, []);
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return dimensions;
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}
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//# sourceMappingURL=useWindowDimensions.js.map
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