385 lines
10 KiB
JavaScript
385 lines
10 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 Pressability, {
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type PressabilityConfig,
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} from '../../Pressability/Pressability';
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import {PressabilityDebugView} from '../../Pressability/PressabilityDebug';
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import StyleSheet, {type ViewStyleProp} from '../../StyleSheet/StyleSheet';
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import type {ColorValue} from '../../StyleSheet/StyleSheetTypes';
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import TVTouchable from './TVTouchable';
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import typeof TouchableWithoutFeedback from './TouchableWithoutFeedback';
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import Platform from '../../Utilities/Platform';
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import View from '../../Components/View/View';
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import * as React from 'react';
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type AndroidProps = $ReadOnly<{|
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nextFocusDown?: ?number,
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nextFocusForward?: ?number,
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nextFocusLeft?: ?number,
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nextFocusRight?: ?number,
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nextFocusUp?: ?number,
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|}>;
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type IOSProps = $ReadOnly<{|
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hasTVPreferredFocus?: ?boolean,
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|}>;
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type Props = $ReadOnly<{|
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...React.ElementConfig<TouchableWithoutFeedback>,
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...AndroidProps,
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...IOSProps,
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activeOpacity?: ?number,
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underlayColor?: ?ColorValue,
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style?: ?ViewStyleProp,
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onShowUnderlay?: ?() => void,
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onHideUnderlay?: ?() => void,
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testOnly_pressed?: ?boolean,
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hostRef: React.Ref<typeof View>,
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|}>;
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type ExtraStyles = $ReadOnly<{|
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child: ViewStyleProp,
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underlay: ViewStyleProp,
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|}>;
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type State = $ReadOnly<{|
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pressability: Pressability,
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extraStyles: ?ExtraStyles,
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|}>;
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/**
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* A wrapper for making views respond properly to touches.
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* On press down, the opacity of the wrapped view is decreased, which allows
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* the underlay color to show through, darkening or tinting the view.
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*
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* The underlay comes from wrapping the child in a new View, which can affect
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* layout, and sometimes cause unwanted visual artifacts if not used correctly,
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* for example if the backgroundColor of the wrapped view isn't explicitly set
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* to an opaque color.
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*
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* TouchableHighlight must have one child (not zero or more than one).
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* If you wish to have several child components, wrap them in a View.
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*
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* Example:
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*
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* ```
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* renderButton: function() {
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* return (
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* <TouchableHighlight onPress={this._onPressButton}>
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* <Image
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* style={styles.button}
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* source={require('./myButton.png')}
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* />
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* </TouchableHighlight>
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* );
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* },
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* ```
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*
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*
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* ### Example
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*
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* ```ReactNativeWebPlayer
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* import React, { Component } from 'react'
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* import {
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* AppRegistry,
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* StyleSheet,
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* TouchableHighlight,
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* Text,
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* View,
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* } from 'react-native'
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*
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* class App extends Component {
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* constructor(props) {
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* super(props)
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* this.state = { count: 0 }
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* }
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*
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* onPress = () => {
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* this.setState({
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* count: this.state.count+1
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* })
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* }
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*
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* render() {
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* return (
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* <View style={styles.container}>
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* <TouchableHighlight
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* style={styles.button}
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* onPress={this.onPress}
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* >
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* <Text> Touch Here </Text>
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* </TouchableHighlight>
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* <View style={[styles.countContainer]}>
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* <Text style={[styles.countText]}>
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* { this.state.count !== 0 ? this.state.count: null}
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* </Text>
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* </View>
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* </View>
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* )
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* }
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* }
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*
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* const styles = StyleSheet.create({
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* container: {
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* flex: 1,
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* justifyContent: 'center',
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* paddingHorizontal: 10
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* },
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* button: {
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* alignItems: 'center',
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* backgroundColor: '#DDDDDD',
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* padding: 10
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* },
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* countContainer: {
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* alignItems: 'center',
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* padding: 10
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* },
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* countText: {
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* color: '#FF00FF'
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* }
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* })
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*
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* AppRegistry.registerComponent('App', () => App)
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* ```
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*
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*/
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class TouchableHighlight extends React.Component<Props, State> {
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_hideTimeout: ?TimeoutID;
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_isMounted: boolean = false;
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_tvTouchable: ?TVTouchable;
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state: State = {
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pressability: new Pressability(this._createPressabilityConfig()),
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extraStyles:
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this.props.testOnly_pressed === true ? this._createExtraStyles() : null,
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};
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_createPressabilityConfig(): PressabilityConfig {
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return {
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cancelable: !this.props.rejectResponderTermination,
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disabled: this.props.disabled,
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hitSlop: this.props.hitSlop,
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delayLongPress: this.props.delayLongPress,
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delayPressIn: this.props.delayPressIn,
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delayPressOut: this.props.delayPressOut,
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minPressDuration: 0,
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pressRectOffset: this.props.pressRetentionOffset,
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android_disableSound: this.props.touchSoundDisabled,
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onBlur: event => {
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if (Platform.isTV) {
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this._hideUnderlay();
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}
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if (this.props.onBlur != null) {
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this.props.onBlur(event);
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}
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},
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onFocus: event => {
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if (Platform.isTV) {
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this._showUnderlay();
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}
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if (this.props.onFocus != null) {
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this.props.onFocus(event);
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}
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},
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onLongPress: event => {
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if (this.props.onLongPress != null) {
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this.props.onLongPress(event);
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}
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},
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onPress: event => {
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if (this._hideTimeout != null) {
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clearTimeout(this._hideTimeout);
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}
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if (!Platform.isTV) {
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this._showUnderlay();
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this._hideTimeout = setTimeout(() => {
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this._hideUnderlay();
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}, this.props.delayPressOut ?? 0);
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}
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if (this.props.onPress != null) {
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this.props.onPress(event);
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}
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},
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onPressIn: event => {
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if (this._hideTimeout != null) {
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clearTimeout(this._hideTimeout);
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this._hideTimeout = null;
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}
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this._showUnderlay();
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if (this.props.onPressIn != null) {
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this.props.onPressIn(event);
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}
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},
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onPressOut: event => {
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if (this._hideTimeout == null) {
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this._hideUnderlay();
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}
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if (this.props.onPressOut != null) {
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this.props.onPressOut(event);
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}
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},
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};
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}
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_createExtraStyles(): ExtraStyles {
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return {
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child: {opacity: this.props.activeOpacity ?? 0.85},
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underlay: {
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backgroundColor:
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this.props.underlayColor === undefined
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? 'black'
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: this.props.underlayColor,
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},
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};
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}
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_showUnderlay(): void {
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if (!this._isMounted || !this._hasPressHandler()) {
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return;
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}
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this.setState({extraStyles: this._createExtraStyles()});
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if (this.props.onShowUnderlay != null) {
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this.props.onShowUnderlay();
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}
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}
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_hideUnderlay(): void {
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if (this._hideTimeout != null) {
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clearTimeout(this._hideTimeout);
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this._hideTimeout = null;
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}
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if (this.props.testOnly_pressed === true) {
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return;
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}
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if (this._hasPressHandler()) {
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this.setState({extraStyles: null});
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if (this.props.onHideUnderlay != null) {
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this.props.onHideUnderlay();
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}
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}
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}
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_hasPressHandler(): boolean {
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return (
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this.props.onPress != null ||
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this.props.onPressIn != null ||
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this.props.onPressOut != null ||
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this.props.onLongPress != null
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);
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}
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render(): React.Node {
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const child = React.Children.only(this.props.children);
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// BACKWARD-COMPATIBILITY: Focus and blur events were never supported before
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// adopting `Pressability`, so preserve that behavior.
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const {
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onBlur,
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onFocus,
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...eventHandlersWithoutBlurAndFocus
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} = this.state.pressability.getEventHandlers();
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return (
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<View
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accessible={this.props.accessible !== false}
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accessibilityLabel={this.props.accessibilityLabel}
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accessibilityHint={this.props.accessibilityHint}
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accessibilityRole={this.props.accessibilityRole}
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accessibilityState={this.props.accessibilityState}
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accessibilityValue={this.props.accessibilityValue}
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accessibilityActions={this.props.accessibilityActions}
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onAccessibilityAction={this.props.onAccessibilityAction}
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importantForAccessibility={this.props.importantForAccessibility}
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accessibilityLiveRegion={this.props.accessibilityLiveRegion}
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accessibilityViewIsModal={this.props.accessibilityViewIsModal}
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accessibilityElementsHidden={this.props.accessibilityElementsHidden}
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style={StyleSheet.compose(
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this.props.style,
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this.state.extraStyles?.underlay,
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)}
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onLayout={this.props.onLayout}
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hitSlop={this.props.hitSlop}
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hasTVPreferredFocus={this.props.hasTVPreferredFocus}
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nextFocusDown={this.props.nextFocusDown}
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nextFocusForward={this.props.nextFocusForward}
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nextFocusLeft={this.props.nextFocusLeft}
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nextFocusRight={this.props.nextFocusRight}
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nextFocusUp={this.props.nextFocusUp}
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focusable={
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this.props.focusable !== false && this.props.onPress !== undefined
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}
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nativeID={this.props.nativeID}
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testID={this.props.testID}
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ref={this.props.hostRef}
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{...eventHandlersWithoutBlurAndFocus}>
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{React.cloneElement(child, {
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style: StyleSheet.compose(
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child.props.style,
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this.state.extraStyles?.child,
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),
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})}
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{__DEV__ ? (
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<PressabilityDebugView color="green" hitSlop={this.props.hitSlop} />
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) : null}
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</View>
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);
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}
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componentDidMount(): void {
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this._isMounted = true;
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if (Platform.isTV) {
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this._tvTouchable = new TVTouchable(this, {
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getDisabled: () => this.props.disabled === true,
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onBlur: event => {
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if (this.props.onBlur != null) {
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this.props.onBlur(event);
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}
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},
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onFocus: event => {
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if (this.props.onFocus != null) {
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this.props.onFocus(event);
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}
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},
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onPress: event => {
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if (this.props.onPress != null) {
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this.props.onPress(event);
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}
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},
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});
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}
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}
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componentDidUpdate(prevProps: Props, prevState: State) {
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this.state.pressability.configure(this._createPressabilityConfig());
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}
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componentWillUnmount(): void {
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this._isMounted = false;
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if (this._hideTimeout != null) {
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clearTimeout(this._hideTimeout);
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}
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if (Platform.isTV) {
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if (this._tvTouchable != null) {
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this._tvTouchable.destroy();
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}
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}
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this.state.pressability.reset();
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}
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}
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module.exports = (React.forwardRef((props, hostRef) => (
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<TouchableHighlight {...props} hostRef={hostRef} />
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)): React.ComponentType<$ReadOnly<$Diff<Props, {|hostRef: mixed|}>>>);
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