127 lines
3.5 KiB
JavaScript
127 lines
3.5 KiB
JavaScript
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/* eslint-env browser */
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import * as React from 'react';
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import { View } from 'react-native';
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/**
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* TODO:
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* Currently insets and frame are based on the window and are not
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* relative to the provider view. This is inconsistent with iOS and Android.
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* However in most cases if the provider view covers the screen this is not
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* an issue.
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*/
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const CSSTransitions = {
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WebkitTransition: 'webkitTransitionEnd',
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Transition: 'transitionEnd',
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MozTransition: 'transitionend',
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MSTransition: 'msTransitionEnd',
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OTransition: 'oTransitionEnd'
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};
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export function NativeSafeAreaProvider(_ref) {
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let {
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children,
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style,
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onInsetsChange
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} = _ref;
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React.useEffect(() => {
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// Skip for SSR.
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if (typeof document === 'undefined') {
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return;
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}
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const element = createContextElement();
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document.body.appendChild(element);
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const onEnd = () => {
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const {
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paddingTop,
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paddingBottom,
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paddingLeft,
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paddingRight
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} = window.getComputedStyle(element);
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const insets = {
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top: paddingTop ? parseInt(paddingTop, 10) : 0,
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bottom: paddingBottom ? parseInt(paddingBottom, 10) : 0,
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left: paddingLeft ? parseInt(paddingLeft, 10) : 0,
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right: paddingRight ? parseInt(paddingRight, 10) : 0
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};
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const frame = {
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x: 0,
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y: 0,
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width: document.documentElement.offsetWidth,
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height: document.documentElement.offsetHeight
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};
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// @ts-ignore: missing properties
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onInsetsChange({
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nativeEvent: {
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insets,
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frame
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}
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});
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};
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element.addEventListener(getSupportedTransitionEvent(), onEnd);
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onEnd();
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return () => {
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document.body.removeChild(element);
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element.removeEventListener(getSupportedTransitionEvent(), onEnd);
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};
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}, [onInsetsChange]);
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return /*#__PURE__*/React.createElement(View, {
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style: style
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}, children);
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}
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let _supportedTransitionEvent = null;
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function getSupportedTransitionEvent() {
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if (_supportedTransitionEvent != null) {
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return _supportedTransitionEvent;
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}
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const element = document.createElement('invalidtype');
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_supportedTransitionEvent = CSSTransitions.Transition;
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for (const key in CSSTransitions) {
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if (element.style[key] !== undefined) {
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_supportedTransitionEvent = CSSTransitions[key];
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break;
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}
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}
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return _supportedTransitionEvent;
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}
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let _supportedEnv = null;
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function getSupportedEnv() {
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if (_supportedEnv !== null) {
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return _supportedEnv;
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}
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const {
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CSS
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} = window;
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if (CSS && CSS.supports && CSS.supports('top: constant(safe-area-inset-top)')) {
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_supportedEnv = 'constant';
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} else {
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_supportedEnv = 'env';
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}
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return _supportedEnv;
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}
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function getInset(side) {
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return `${getSupportedEnv()}(safe-area-inset-${side})`;
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}
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function createContextElement() {
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const element = document.createElement('div');
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const {
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style
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} = element;
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style.position = 'fixed';
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style.left = '0';
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style.top = '0';
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style.width = '0';
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style.height = '0';
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style.zIndex = '-1';
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style.overflow = 'hidden';
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style.visibility = 'hidden';
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// Bacon: Anything faster than this and the callback will be invoked too early with the wrong insets
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style.transitionDuration = '0.05s';
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style.transitionProperty = 'padding';
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style.transitionDelay = '0s';
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style.paddingTop = getInset('top');
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style.paddingBottom = getInset('bottom');
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style.paddingLeft = getInset('left');
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style.paddingRight = getInset('right');
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return element;
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}
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//# sourceMappingURL=NativeSafeAreaProvider.web.js.map
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