GT2/Ejectable/node_modules/@react-navigation/bottom-tabs/lib/commonjs/utils/useWindowDimensions.js

63 lines
2.3 KiB
JavaScript

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