@wordpress/components/build/mobile/segmented-control/index.native.js

UI components for WordPress.

"use strict";

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

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

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

var _extends2 = _interopRequireDefault(require("@babel/runtime/helpers/extends"));

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

var _lodash = require("lodash");

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

var _layoutAnimation = require("../layout-animation");

var _style = _interopRequireDefault(require("./style.scss"));

/**
 * External dependencies
 */

/**
 * WordPress dependencies
 */

/**
 * Internal dependencies
 */
const ANIMATION_DURATION = 200;
const isIOS = _reactNative.Platform.OS === 'ios';

const Segment = ({
  isSelected,
  title,
  onPress,
  onLayout,
  ...props
}) => {
  const isSelectedIOS = isIOS && isSelected;
  const segmentStyle = [_style.default.segment, isIOS && _style.default.segmentIOS];
  const textStyle = (0, _compose.usePreferredColorSchemeStyle)(_style.default.buttonTextDefault, _style.default.buttonTextDefaultDark);
  const selectedTextStyle = (0, _compose.usePreferredColorSchemeStyle)(_style.default.buttonTextSelected, _style.default.buttonTextSelectedDark);
  const shadowStyle = (0, _compose.usePreferredColorSchemeStyle)(_style.default.shadowIOS, {});
  return (0, _element.createElement)(_reactNative.View, {
    style: isSelectedIOS && shadowStyle
  }, (0, _element.createElement)(_reactNative.TouchableWithoutFeedback, {
    onPress: onPress
  }, (0, _element.createElement)(_reactNative.View, (0, _extends2.default)({
    style: segmentStyle,
    onLayout: onLayout
  }, props), (0, _element.createElement)(_reactNative.Text, {
    style: [textStyle, isSelected && selectedTextStyle],
    maxFontSizeMultiplier: 2
  }, title))));
};

const SegmentedControls = ({
  segments,
  segmentHandler,
  selectedIndex,
  addonLeft,
  addonRight
}) => {
  const selectedSegmentIndex = selectedIndex || 0;
  const [activeSegmentIndex, setActiveSegmentIndex] = (0, _element.useState)(selectedSegmentIndex);
  const [segmentsDimensions, setSegmentsDimensions] = (0, _element.useState)({
    [activeSegmentIndex]: {
      width: 0,
      height: 0
    }
  });
  const [positionAnimationValue] = (0, _element.useState)(new _reactNative.Animated.Value(0));
  (0, _element.useEffect)(() => {
    setActiveSegmentIndex(selectedSegmentIndex);
    segmentHandler(segments[selectedSegmentIndex]);
  }, []);
  (0, _element.useEffect)(() => {
    positionAnimationValue.setValue(calculateEndValue(activeSegmentIndex));
  }, [segmentsDimensions]);
  const containerStyle = (0, _compose.usePreferredColorSchemeStyle)(_style.default.container, _style.default.containerDark);

  function performSwatchAnimation(index) {
    _reactNative.Animated.timing(positionAnimationValue, {
      toValue: calculateEndValue(index),
      duration: ANIMATION_DURATION,
      easing: _reactNative.Easing.ease
    }).start();
  }

  function calculateEndValue(index) {
    const {
      paddingLeft: offset
    } = isIOS ? _style.default.containerIOS : _style.default.container;
    const widths = (0, _lodash.map)((0, _lodash.values)(segmentsDimensions), 'width');
    const widthsDistance = (0, _lodash.take)(widths, index);
    const widthsDistanceSum = (0, _lodash.reduce)(widthsDistance, (sum, n) => sum + n);
    const endValue = index === 0 ? 0 : widthsDistanceSum;
    return endValue + offset;
  }

  function onHandlePress(segment, index) {
    (0, _layoutAnimation.performLayoutAnimation)(ANIMATION_DURATION);
    setActiveSegmentIndex(index);
    segmentHandler(segment);
    performSwatchAnimation(index);
  }

  function segmentOnLayout(event, index) {
    const {
      width,
      height
    } = event.nativeEvent.layout;
    setSegmentsDimensions({ ...segmentsDimensions,
      [index]: {
        width,
        height
      }
    });
  }

  const selectedStyle = (0, _compose.usePreferredColorSchemeStyle)(_style.default.selected, _style.default.selectedDark);
  const width = segmentsDimensions[activeSegmentIndex].width;
  const height = segmentsDimensions[activeSegmentIndex].height;
  const outlineStyle = [_style.default.outline, isIOS && _style.default.outlineIOS];
  return (0, _element.createElement)(_reactNative.View, {
    style: _style.default.row
  }, (0, _element.createElement)(_reactNative.View, {
    style: _style.default.flex
  }, addonLeft), (0, _element.createElement)(_reactNative.View, {
    style: [containerStyle, isIOS && _style.default.containerIOS]
  }, segments.map((segment, index) => {
    return (0, _element.createElement)(Segment, {
      title: segment,
      onPress: () => onHandlePress(segment, index),
      isSelected: activeSegmentIndex === index,
      key: index,
      onLayout: event => segmentOnLayout(event, index),
      accessibilityState: {
        selected: activeSegmentIndex === index
      },
      accessibilityRole: 'button',
      accessibilityLabel: segment,
      accessibilityHint: `${index + 1} on ${segments.length}`
    });
  }), (0, _element.createElement)(_reactNative.Animated.View, {
    style: [{
      width,
      left: positionAnimationValue,
      height
    }, selectedStyle, outlineStyle]
  })), (0, _element.createElement)(_reactNative.View, {
    style: _style.default.flex
  }, addonRight));
};

var _default = SegmentedControls;
exports.default = _default;
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