249 lines
6.5 KiB
JavaScript
249 lines
6.5 KiB
JavaScript
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/**
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* Copyright (c) Facebook, Inc. and its affiliates.
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*
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* This source code is licensed under the MIT license found in the
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* LICENSE file in the root directory of this source tree.
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*
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* @flow strict-local
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* @format
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*/
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'use strict';
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import * as React from 'react';
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import {useMemo, useState, useRef, useImperativeHandle} from 'react';
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import useAndroidRippleForView, {
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type RippleConfig,
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} from './useAndroidRippleForView';
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import type {
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AccessibilityActionEvent,
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AccessibilityActionInfo,
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AccessibilityRole,
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AccessibilityState,
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AccessibilityValue,
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} from '../View/ViewAccessibility';
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import {PressabilityDebugView} from '../../Pressability/PressabilityDebug';
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import usePressability from '../../Pressability/usePressability';
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import {normalizeRect, type RectOrSize} from '../../StyleSheet/Rect';
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import type {ColorValue} from '../../StyleSheet/StyleSheetTypes';
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import type {LayoutEvent, PressEvent} from '../../Types/CoreEventTypes';
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import View from '../View/View';
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type ViewStyleProp = $ElementType<React.ElementConfig<typeof View>, 'style'>;
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export type StateCallbackType = $ReadOnly<{|
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pressed: boolean,
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|}>;
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type Props = $ReadOnly<{|
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/**
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* Accessibility.
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*/
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accessibilityActions?: ?$ReadOnlyArray<AccessibilityActionInfo>,
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accessibilityElementsHidden?: ?boolean,
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accessibilityHint?: ?Stringish,
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accessibilityIgnoresInvertColors?: ?boolean,
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accessibilityLabel?: ?Stringish,
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accessibilityLiveRegion?: ?('none' | 'polite' | 'assertive'),
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accessibilityRole?: ?AccessibilityRole,
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accessibilityState?: ?AccessibilityState,
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accessibilityValue?: ?AccessibilityValue,
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accessibilityViewIsModal?: ?boolean,
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accessible?: ?boolean,
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focusable?: ?boolean,
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importantForAccessibility?: ?('auto' | 'yes' | 'no' | 'no-hide-descendants'),
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onAccessibilityAction?: ?(event: AccessibilityActionEvent) => mixed,
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/**
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* Either children or a render prop that receives a boolean reflecting whether
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* the component is currently pressed.
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*/
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children: React.Node | ((state: StateCallbackType) => React.Node),
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/**
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* Duration (in milliseconds) from `onPressIn` before `onLongPress` is called.
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*/
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delayLongPress?: ?number,
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/**
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* Whether the press behavior is disabled.
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*/
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disabled?: ?boolean,
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/**
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* Additional distance outside of this view in which a press is detected.
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*/
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hitSlop?: ?RectOrSize,
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/**
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* Additional distance outside of this view in which a touch is considered a
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* press before `onPressOut` is triggered.
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*/
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pressRetentionOffset?: ?RectOrSize,
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/**
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* Called when this view's layout changes.
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*/
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onLayout?: ?(event: LayoutEvent) => void,
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/**
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* Called when a long-tap gesture is detected.
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*/
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onLongPress?: ?(event: PressEvent) => void,
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/**
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* Called when a single tap gesture is detected.
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*/
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onPress?: ?(event: PressEvent) => void,
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/**
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* Called when a touch is engaged before `onPress`.
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*/
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onPressIn?: ?(event: PressEvent) => void,
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/**
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* Called when a touch is released before `onPress`.
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*/
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onPressOut?: ?(event: PressEvent) => void,
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/**
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* Either view styles or a function that receives a boolean reflecting whether
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* the component is currently pressed and returns view styles.
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*/
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style?: ViewStyleProp | ((state: StateCallbackType) => ViewStyleProp),
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/**
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* Identifier used to find this view in tests.
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*/
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testID?: ?string,
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/**
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* If true, doesn't play system sound on touch.
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*/
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android_disableSound?: ?boolean,
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/**
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* Enables the Android ripple effect and configures its color.
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*/
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android_ripple?: ?RippleConfig,
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/**
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* Used only for documentation or testing (e.g. snapshot testing).
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*/
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testOnly_pressed?: ?boolean,
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/**
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* Duration to wait after press down before calling `onPressIn`.
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*/
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unstable_pressDelay?: ?number,
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|}>;
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/**
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* Component used to build display components that should respond to whether the
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* component is currently pressed or not.
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*/
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function Pressable(props: Props, forwardedRef): React.Node {
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const {
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accessible,
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android_disableSound,
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android_ripple,
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children,
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delayLongPress,
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disabled,
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focusable,
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onLongPress,
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onPress,
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onPressIn,
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onPressOut,
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pressRetentionOffset,
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style,
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testOnly_pressed,
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unstable_pressDelay,
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...restProps
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} = props;
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const viewRef = useRef<React.ElementRef<typeof View> | null>(null);
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useImperativeHandle(forwardedRef, () => viewRef.current);
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const android_rippleConfig = useAndroidRippleForView(android_ripple, viewRef);
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const [pressed, setPressed] = usePressState(testOnly_pressed === true);
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const hitSlop = normalizeRect(props.hitSlop);
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const config = useMemo(
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() => ({
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disabled,
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hitSlop,
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pressRectOffset: pressRetentionOffset,
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android_disableSound,
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delayLongPress,
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delayPressIn: unstable_pressDelay,
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onLongPress,
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onPress,
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onPressIn(event: PressEvent): void {
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if (android_rippleConfig != null) {
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android_rippleConfig.onPressIn(event);
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}
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setPressed(true);
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if (onPressIn != null) {
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onPressIn(event);
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}
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},
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onPressMove: android_rippleConfig?.onPressMove,
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onPressOut(event: PressEvent): void {
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if (android_rippleConfig != null) {
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android_rippleConfig.onPressOut(event);
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}
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setPressed(false);
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if (onPressOut != null) {
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onPressOut(event);
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}
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},
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}),
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[
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android_disableSound,
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android_rippleConfig,
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delayLongPress,
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disabled,
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hitSlop,
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onLongPress,
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onPress,
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onPressIn,
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onPressOut,
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pressRetentionOffset,
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setPressed,
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unstable_pressDelay,
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],
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);
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const eventHandlers = usePressability(config);
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return (
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<View
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{...restProps}
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{...eventHandlers}
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{...android_rippleConfig?.viewProps}
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accessible={accessible !== false}
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focusable={focusable !== false}
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hitSlop={hitSlop}
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ref={viewRef}
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style={typeof style === 'function' ? style({pressed}) : style}>
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{typeof children === 'function' ? children({pressed}) : children}
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{__DEV__ ? <PressabilityDebugView color="red" hitSlop={hitSlop} /> : null}
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</View>
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);
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}
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function usePressState(forcePressed: boolean): [boolean, (boolean) => void] {
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const [pressed, setPressed] = useState(false);
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return [pressed || forcePressed, setPressed];
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}
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const MemoedPressable = React.memo(React.forwardRef(Pressable));
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MemoedPressable.displayName = 'Pressable';
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export default (MemoedPressable: React.AbstractComponent<
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Props,
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React.ElementRef<typeof View>,
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>);
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