react-native-web/dist/exports/Switch/index.js.flow

React Native for Web

/**
 * Copyright (c) Nicolas Gallagher.
 *
 * This source code is licensed under the MIT license found in the
 * LICENSE file in the root directory of this source tree.
 *
 * @flow
 */

'use client';

import type { ColorValue } from '../../types';
import type { ViewProps } from '../View';
import * as React from 'react';
import createElement from '../createElement';
import multiplyStyleLengthValue from '../../modules/multiplyStyleLengthValue';
import StyleSheet from '../StyleSheet';
import View from '../View';
type SwitchProps = {
  ...ViewProps,
  activeThumbColor?: ColorValue,
  activeTrackColor?: ColorValue,
  disabled?: boolean,
  onValueChange?: (e: any) => void,
  thumbColor?: ColorValue,
  trackColor?: ColorValue | {|
    false: ColorValue,
    true: ColorValue,
  |},
  value?: boolean,
};
const emptyObject = {};
const thumbDefaultBoxShadow = '0px 1px 3px rgba(0,0,0,0.5)';
const thumbFocusedBoxShadow = `${thumbDefaultBoxShadow}, 0 0 0 10px rgba(0,0,0,0.1)`;
const defaultActiveTrackColor = '#A3D3CF';
const defaultTrackColor = '#939393';
const defaultDisabledTrackColor = '#D5D5D5';
const defaultActiveThumbColor = '#009688';
const defaultThumbColor = '#FAFAFA';
const defaultDisabledThumbColor = '#BDBDBD';
const Switch: React.AbstractComponent<SwitchProps, React.ElementRef<typeof View>> = React.forwardRef((props, forwardedRef) => {
  const {
    'aria-label': ariaLabel,
    accessibilityLabel,
    activeThumbColor,
    activeTrackColor,
    disabled = false,
    onValueChange,
    style = emptyObject,
    thumbColor,
    trackColor,
    value = false,
    ...other
  } = props;
  const thumbRef = React.useRef(null);
  declare function handleChange(event: Object): any;
  declare function handleFocusState(event: Object): any;
  const {
    height: styleHeight,
    width: styleWidth
  } = StyleSheet.flatten(style);
  const height = styleHeight || '20px';
  const minWidth = multiplyStyleLengthValue(height, 2);
  const width = styleWidth > minWidth ? styleWidth : minWidth;
  const trackBorderRadius = multiplyStyleLengthValue(height, 0.5);
  const trackCurrentColor = function () {
    if (value === true) {
      if (trackColor != null && typeof trackColor === 'object') {
        return trackColor.true;
      } else {
        return activeTrackColor ?? defaultActiveTrackColor;
      }
    } else {
      if (trackColor != null && typeof trackColor === 'object') {
        return trackColor.false;
      } else {
        return trackColor ?? defaultTrackColor;
      }
    }
  }();
  const thumbCurrentColor = value ? activeThumbColor ?? defaultActiveThumbColor : thumbColor ?? defaultThumbColor;
  const thumbHeight = height;
  const thumbWidth = thumbHeight;
  const rootStyle = [styles.root, style, disabled && styles.cursorDefault, {
    height,
    width
  }];
  const disabledTrackColor = function () {
    if (value === true) {
      if (typeof activeTrackColor === 'string' && activeTrackColor != null || typeof trackColor === 'object' && trackColor?.true) {
        return trackCurrentColor;
      } else {
        return defaultDisabledTrackColor;
      }
    } else {
      if (typeof trackColor === 'string' && trackColor != null || typeof trackColor === 'object' && trackColor?.false) {
        return trackCurrentColor;
      } else {
        return defaultDisabledTrackColor;
      }
    }
  }();
  const disabledThumbColor = function () {
    if (value === true) {
      if (activeThumbColor == null) {
        return defaultDisabledThumbColor;
      } else {
        return thumbCurrentColor;
      }
    } else {
      if (thumbColor == null) {
        return defaultDisabledThumbColor;
      } else {
        return thumbCurrentColor;
      }
    }
  }();
  const trackStyle = [styles.track, {
    backgroundColor: disabled ? disabledTrackColor : trackCurrentColor,
    borderRadius: trackBorderRadius
  }];
  const thumbStyle = [styles.thumb, value && styles.thumbActive, {
    backgroundColor: disabled ? disabledThumbColor : thumbCurrentColor,
    height: thumbHeight,
    marginStart: value ? multiplyStyleLengthValue(thumbWidth, -1) : 0,
    width: thumbWidth
  }];
  const nativeControl = createElement('input', {
    'aria-label': ariaLabel || accessibilityLabel,
    checked: value,
    disabled: disabled,
    onBlur: handleFocusState,
    onChange: handleChange,
    onFocus: handleFocusState,
    ref: forwardedRef,
    style: [styles.nativeControl, styles.cursorInherit],
    type: 'checkbox',
    role: 'switch'
  });
  return <View {...other} style={rootStyle}>
      <View style={trackStyle} />
      <View ref={thumbRef} style={thumbStyle} />
      {nativeControl}
    </View>;
});
Switch.displayName = 'Switch';
const styles = StyleSheet.create({
  root: {
    cursor: 'pointer',
    userSelect: 'none'
  },
  cursorDefault: {
    cursor: 'default'
  },
  cursorInherit: {
    cursor: 'inherit'
  },
  track: {
    forcedColorAdjust: 'none',
    ...StyleSheet.absoluteFillObject,
    height: '70%',
    margin: 'auto',
    transitionDuration: '0.1s',
    width: '100%'
  },
  thumb: {
    forcedColorAdjust: 'none',
    alignSelf: 'flex-start',
    borderRadius: '100%',
    boxShadow: thumbDefaultBoxShadow,
    start: '0%',
    transform: 'translateZ(0)',
    transitionDuration: '0.1s'
  },
  thumbActive: {
    insetInlineStart: '100%'
  },
  nativeControl: {
    ...StyleSheet.absoluteFillObject,
    height: '100%',
    margin: 0,
    appearance: 'none',
    padding: 0,
    width: '100%'
  }
});
export default Switch;