react-native-screens/lib/module/reanimated/ReanimatedNativeStackScreen.js

Native navigation primitives for your React Native app.

function _extends() { return _extends = Object.assign ? Object.assign.bind() : function (n) { for (var e = 1; e < arguments.length; e++) { var t = arguments[e]; for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]); } return n; }, _extends.apply(null, arguments); }
import React from 'react';
import { Platform } from 'react-native';
import { InnerScreen } from '../components/Screen';
// @ts-ignore file to be used only if `react-native-reanimated` available in the project
import Animated, { useEvent, useSharedValue } from 'react-native-reanimated';
import ReanimatedTransitionProgressContext from './ReanimatedTransitionProgressContext';
import { useSafeAreaFrame, useSafeAreaInsets } from 'react-native-safe-area-context';
import ReanimatedHeaderHeightContext from './ReanimatedHeaderHeightContext';
const AnimatedScreen = Animated.createAnimatedComponent(InnerScreen);

// We use prop added to global by reanimated since it seems safer than the one from RN. See:
// https://github.com/software-mansion/react-native-reanimated/blob/3fe8b35b05e82b2f2aefda1fb97799cf81e4b7bb/src/reanimated2/UpdateProps.ts#L46
// @ts-expect-error nativeFabricUIManager is not yet included in the RN types
const ENABLE_FABRIC = !!global?.RN$Bridgeless;
const ReanimatedNativeStackScreen = /*#__PURE__*/React.forwardRef((props, ref) => {
  const {
    children,
    ...rest
  } = props;
  const {
    stackPresentation = 'push',
    hasLargeHeader
  } = rest;
  const dimensions = useSafeAreaFrame();
  const topInset = useSafeAreaInsets().top;
  const isStatusBarTranslucent = rest.statusBarTranslucent ?? false;
  const statusBarHeight = getStatusBarHeight(topInset, dimensions, isStatusBarTranslucent);

  // Default header height, normally used in `useHeaderHeight` hook.
  // Here, it is used for returning a default value for shared value.
  const defaultHeaderHeight = getDefaultHeaderHeight(dimensions, statusBarHeight, stackPresentation, hasLargeHeader);
  const cachedHeaderHeight = React.useRef(defaultHeaderHeight);
  const headerHeight = useSharedValue(defaultHeaderHeight);
  const progress = useSharedValue(0);
  const closing = useSharedValue(0);
  const goingForward = useSharedValue(0);
  return /*#__PURE__*/React.createElement(AnimatedScreen
  // @ts-ignore some problems with ref and onTransitionProgressReanimated being "fake" prop for parsing of `useEvent` return value
  , _extends({
    ref: ref,
    onTransitionProgressReanimated: useEvent(event => {
      'worklet';

      progress.value = event.progress;
      closing.value = event.closing;
      goingForward.value = event.goingForward;
    }, [
    // This should not be necessary, but is not properly managed by `react-native-reanimated`
    // @ts-ignore wrong type
    Platform.OS === 'android' ? 'onTransitionProgress' :
    // for some reason there is a difference in required event name between architectures
    ENABLE_FABRIC ? 'onTransitionProgress' : 'topTransitionProgress']),
    onHeaderHeightChangeReanimated: useEvent(event => {
      'worklet';

      if (event.headerHeight !== cachedHeaderHeight.current) {
        headerHeight.value = event.headerHeight;
        cachedHeaderHeight.current = event.headerHeight;
      }
    }, [
    // @ts-ignore wrong type
    Platform.OS === 'android' ? 'onHeaderHeightChange' : ENABLE_FABRIC ? 'onHeaderHeightChange' : 'topHeaderHeightChange'])
  }, rest), /*#__PURE__*/React.createElement(ReanimatedHeaderHeightContext.Provider, {
    value: headerHeight
  }, /*#__PURE__*/React.createElement(ReanimatedTransitionProgressContext.Provider, {
    value: {
      progress,
      closing,
      goingForward
    }
  }, children)));
});
const formSheetModalHeight = 56;
function getDefaultHeaderHeight(layout, statusBarHeight, stackPresentation, isLargeHeader = false) {
  // default header heights
  let headerHeight = Platform.OS === 'android' ? 56 : 64;
  if (Platform.OS === 'ios') {
    const isLandscape = layout.width > layout.height;
    const isFormSheetModal = stackPresentation === 'modal' || stackPresentation === 'formSheet' || stackPresentation === 'pageSheet';
    if (isFormSheetModal && !isLandscape) {
      // `modal`, `formSheet` and `pageSheet` presentations do not take whole screen, so should not take the inset.
      statusBarHeight = 0;
    }
    if (Platform.isPad || Platform.isTV) {
      headerHeight = isFormSheetModal ? formSheetModalHeight : 50;
    } else {
      if (isLandscape) {
        headerHeight = 32;
      } else {
        if (isFormSheetModal) {
          headerHeight = formSheetModalHeight;
        } else {
          headerHeight = isLargeHeader ? 96 : 44;
        }
      }
    }
  }
  return headerHeight + statusBarHeight;
}
function getStatusBarHeight(topInset, dimensions, isStatusBarTranslucent) {
  if (Platform.OS === 'ios') {
    // It looks like some iOS devices don't have strictly set status bar height to 44.
    // Thus, if the top inset is higher than 50, then the device should have a dynamic island.
    // On models with Dynamic Island the status bar height is smaller than the safe area top inset by 5 pixels.
    // See https://developer.apple.com/forums/thread/662466 for more details about status bar height.
    const hasDynamicIsland = topInset > 50;
    return hasDynamicIsland ? topInset - 5 : topInset;
  } else if (Platform.OS === 'android') {
    // On Android we should also rely on frame's y-axis position, as topInset is 0 on visible status bar.
    return isStatusBarTranslucent ? topInset : dimensions.y;
  }
  return topInset;
}
ReanimatedNativeStackScreen.displayName = 'ReanimatedNativeStackScreen';
export default ReanimatedNativeStackScreen;
//# sourceMappingURL=ReanimatedNativeStackScreen.js.map