@wordpress/components/build/mobile/keyboard-aware-flat-list/index.ios.js

UI components for WordPress.

"use strict";

var _interopRequireDefault = require("@babel/runtime/helpers/interopRequireDefault");

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = exports.KeyboardAwareFlatList = void 0;

var _element = require("@wordpress/element");

var _reactNative = require("react-native");

var _reactNativeReanimated = _interopRequireWildcard(require("react-native-reanimated"));

var _compose = require("@wordpress/compose");

var _useTextInputOffset = _interopRequireDefault(require("./use-text-input-offset"));

var _useKeyboardOffset = _interopRequireDefault(require("./use-keyboard-offset"));

var _useScrollToTextInput = _interopRequireDefault(require("./use-scroll-to-text-input"));

var _useTextInputCaretPosition = _interopRequireDefault(require("./use-text-input-caret-position"));

function _getRequireWildcardCache(nodeInterop) { if (typeof WeakMap !== "function") return null; var cacheBabelInterop = new WeakMap(); var cacheNodeInterop = new WeakMap(); return (_getRequireWildcardCache = function (nodeInterop) { return nodeInterop ? cacheNodeInterop : cacheBabelInterop; })(nodeInterop); }

function _interopRequireWildcard(obj, nodeInterop) { if (!nodeInterop && obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(nodeInterop); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (key !== "default" && 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; }

/**
 * External dependencies
 */

/**
 * WordPress dependencies
 */

/**
 * Internal dependencies
 */
const AnimatedScrollView = _reactNativeReanimated.default.createAnimatedComponent(_reactNative.ScrollView);
/**
 * React component that provides a FlatList that is aware of the keyboard state and can scroll
 * to the currently focused TextInput.
 *
 * @param {Object}   props                              Component props.
 * @param {number}   props.extraScrollHeight            Extra scroll height for the content.
 * @param {Function} props.innerRef                     Function to pass the ScrollView ref to the parent component.
 * @param {Function} props.onScroll                     Function to be called when the list is scrolled.
 * @param {boolean}  props.scrollEnabled                Whether the list can be scrolled.
 * @param {Object}   props.scrollViewStyle              Additional style for the ScrollView component.
 * @param {boolean}  props.shouldPreventAutomaticScroll Whether to prevent scrolling when there's a Keyboard offset set.
 * @param {Object}   props...                           Other props to pass to the FlatList component.
 * @return {WPComponent} KeyboardAwareFlatList component.
 */


const KeyboardAwareFlatList = _ref => {
  let {
    extraScrollHeight,
    innerRef,
    onScroll,
    scrollEnabled,
    scrollViewStyle,
    shouldPreventAutomaticScroll,
    ...props
  } = _ref;
  const scrollViewRef = (0, _element.useRef)();
  const scrollViewMeasurements = (0, _element.useRef)();
  const scrollViewYOffset = (0, _reactNativeReanimated.useSharedValue)(-1);
  const {
    height: windowHeight,
    width: windowWidth
  } = (0, _reactNative.useWindowDimensions)();
  const isLandscape = windowWidth >= windowHeight;
  const [keyboardOffset] = (0, _useKeyboardOffset.default)(scrollEnabled, shouldPreventAutomaticScroll);
  const [currentCaretData] = (0, _useTextInputCaretPosition.default)(scrollEnabled);
  const [getTextInputOffset] = (0, _useTextInputOffset.default)(scrollEnabled, scrollViewRef);
  const [scrollToTextInputOffset] = (0, _useScrollToTextInput.default)(extraScrollHeight, keyboardOffset, scrollEnabled, scrollViewMeasurements, scrollViewRef, scrollViewYOffset);
  const onScrollToTextInput = (0, _compose.useThrottle)((0, _element.useCallback)(async caret => {
    const textInputOffset = await getTextInputOffset(caret);
    const hasTextInputOffset = textInputOffset !== null;

    if (hasTextInputOffset) {
      scrollToTextInputOffset(caret, textInputOffset);
    }
  }, [getTextInputOffset, scrollToTextInputOffset]), 200, {
    leading: false
  });
  (0, _element.useEffect)(() => {
    onScrollToTextInput(currentCaretData);
  }, [currentCaretData, onScrollToTextInput]); // When the orientation changes, the ScrollView measurements
  // need to be re-calculated.

  (0, _element.useEffect)(() => {
    scrollViewMeasurements.current = null;
  }, [isLandscape]);
  const scrollHandler = (0, _reactNativeReanimated.useAnimatedScrollHandler)({
    onScroll: event => {
      const {
        contentOffset
      } = event;
      scrollViewYOffset.value = contentOffset.y;
      onScroll(event);
    }
  });
  const measureScrollView = (0, _element.useCallback)(() => {
    if (scrollViewRef.current) {
      const scrollRef = scrollViewRef.current.getNativeScrollRef();
      scrollRef.measureInWindow((_x, y, width, height) => {
        scrollViewMeasurements.current = {
          y,
          width,
          height
        };
      });
    }
  }, []);
  const onContentSizeChange = (0, _element.useCallback)(() => {
    onScrollToTextInput(currentCaretData); // Sets the first values when the content size changes.

    if (!scrollViewMeasurements.current) {
      measureScrollView();
    }
  }, [measureScrollView, onScrollToTextInput, currentCaretData]);
  const getRef = (0, _element.useCallback)(ref => {
    scrollViewRef.current = ref;
    innerRef(ref);
  }, [innerRef]); // Adds content insets when the keyboard is opened to have
  // extra padding at the bottom.

  const contentInset = {
    bottom: keyboardOffset
  };
  const style = [{
    flex: 1
  }, scrollViewStyle];
  return (0, _element.createElement)(AnimatedScrollView, {
    automaticallyAdjustContentInsets: false,
    contentInset: contentInset,
    keyboardShouldPersistTaps: "handled",
    onContentSizeChange: onContentSizeChange,
    onScroll: scrollHandler,
    ref: getRef,
    scrollEnabled: scrollEnabled,
    scrollEventThrottle: 16,
    style: style
  }, (0, _element.createElement)(_reactNative.FlatList, props));
};

exports.KeyboardAwareFlatList = KeyboardAwareFlatList;
var _default = KeyboardAwareFlatList;
exports.default = _default;
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