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index.native.js
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index.native.js
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/**
* External dependencies
*/
import {
Text,
View,
TouchableWithoutFeedback,
Platform,
findNodeHandle,
} from 'react-native';
/**
* Internal dependencies
*/
import RangeCell from '../mobile/bottom-sheet/range-cell';
import StepperCell from '../mobile/bottom-sheet/stepper-cell';
import Picker from '../mobile/picker';
import styles from './style.scss';
import { CSS_UNITS, hasUnits, getAccessibleLabelForUnit } from './utils';
/**
* WordPress dependencies
*/
import { useRef, useCallback, useMemo, memo } from '@wordpress/element';
import { withPreferredColorScheme } from '@wordpress/compose';
import { __, sprintf } from '@wordpress/i18n';
function UnitControl( {
currentInput,
label,
value,
onChange,
onUnitChange,
initialPosition,
min,
max,
separatorType,
units = CSS_UNITS,
unit,
getStylesFromColorScheme,
...props
} ) {
const pickerRef = useRef();
const anchorNodeRef = useRef();
const onPickerPresent = useCallback( () => {
if ( pickerRef?.current ) {
pickerRef.current.presentPicker();
}
}, [ pickerRef?.current ] );
const currentInputValue = currentInput === null ? value : currentInput;
const initialControlValue = isFinite( currentInputValue )
? currentInputValue
: initialPosition;
const unitButtonTextStyle = getStylesFromColorScheme(
styles.unitButtonText,
styles.unitButtonTextDark
);
/* translators: accessibility text. Inform about current unit value. %s: Current unit value. */
const accessibilityLabel = sprintf( __( 'Current unit is %s' ), unit );
const accessibilityHint =
Platform.OS === 'ios'
? __( 'Double tap to open Action Sheet with available options' )
: __( 'Double tap to open Bottom Sheet with available options' );
const renderUnitButton = useMemo( () => {
const unitButton = (
<View style={ styles.unitButton }>
<Text style={ unitButtonTextStyle }>{ unit }</Text>
</View>
);
if ( hasUnits( units ) && units?.length > 1 ) {
return (
<TouchableWithoutFeedback
onPress={ onPickerPresent }
accessibilityLabel={ accessibilityLabel }
accessibilityRole="button"
accessibilityHint={ accessibilityHint }
>
{ unitButton }
</TouchableWithoutFeedback>
);
}
return unitButton;
}, [
onPickerPresent,
accessibilityLabel,
accessibilityHint,
unitButtonTextStyle,
unit,
units,
] );
const getAnchor = useCallback(
() =>
anchorNodeRef?.current
? findNodeHandle( anchorNodeRef?.current )
: undefined,
[ anchorNodeRef?.current ]
);
const getDecimal = ( step ) => {
// Return the decimal offset based on the step size.
// if step size is 0.1 we expect the offset to be 1.
// for example 12 + 0.1 we would expect the see 12.1 (not 12.10 or 12 );
// steps are defined in the CSS_UNITS and they vary from unit to unit.
const stepToString = step;
const splitStep = stepToString.toString().split( '.' );
return splitStep[ 1 ] ? splitStep[ 1 ].length : 0;
};
const renderUnitPicker = useCallback( () => {
if ( units === false ) {
return null;
}
return (
<View style={ styles.unitMenu } ref={ anchorNodeRef }>
{ renderUnitButton }
{ hasUnits( units ) && units?.length > 1 ? (
<Picker
ref={ pickerRef }
options={ units }
onChange={ onUnitChange }
hideCancelButton
leftAlign
getAnchor={ getAnchor }
/>
) : null }
</View>
);
}, [ pickerRef, units, onUnitChange, getAnchor, renderUnitButton ] );
let step = props.step;
/*
* If no step prop has been passed, lookup the active unit and
* try to get step from `units`, or default to a value of `1`
*/
if ( ! step && units ) {
const activeUnit = units.find( ( option ) => option.value === unit );
step = activeUnit?.step ?? 1;
}
const decimalNum = getDecimal( step );
return (
<>
{ unit !== '%' ? (
<StepperCell
label={ label }
max={ max }
min={ min }
onChange={ onChange }
separatorType={ separatorType }
value={ value }
step={ step }
defaultValue={ initialControlValue }
shouldDisplayTextInput
decimalNum={ decimalNum }
openUnitPicker={ onPickerPresent }
unitLabel={ getAccessibleLabelForUnit( unit ) }
{ ...props }
>
{ renderUnitPicker() }
</StepperCell>
) : (
<RangeCell
label={ label }
onChange={ onChange }
minimumValue={ min }
maximumValue={ max }
value={ value }
step={ step }
unit={ unit }
defaultValue={ initialControlValue }
separatorType={ separatorType }
decimalNum={ decimalNum }
openUnitPicker={ onPickerPresent }
unitLabel={ getAccessibleLabelForUnit( unit ) }
{ ...props }
>
{ renderUnitPicker() }
</RangeCell>
) }
</>
);
}
export { useCustomUnits } from './utils';
export default memo( withPreferredColorScheme( UnitControl ) );