86 lines
2.2 KiB
JavaScript
86 lines
2.2 KiB
JavaScript
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/**
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* Copyright (c) Meta Platforms, Inc. and 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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import type {ColorValue} from '../StyleSheet/StyleSheet';
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import View from '../Components/View/View';
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import normalizeColor from '../StyleSheet/normalizeColor';
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import {type RectOrSize, normalizeRect} from '../StyleSheet/Rect';
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import * as React from 'react';
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type Props = $ReadOnly<{|
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color: ColorValue,
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hitSlop: ?RectOrSize,
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|}>;
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/**
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* Displays a debug overlay to visualize press targets when enabled via the
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* React Native Inspector. Calls to this module should be guarded by `__DEV__`,
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* for example:
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*
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* return (
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* <View>
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* {children}
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* {__DEV__ ? (
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* <PressabilityDebugView color="..." hitSlop={props.hitSlop} />
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* ) : null}
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* </View>
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* );
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*
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*/
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export function PressabilityDebugView(props: Props): React.Node {
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if (__DEV__) {
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if (isEnabled()) {
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const normalizedColor = normalizeColor(props.color);
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if (typeof normalizedColor !== 'number') {
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return null;
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}
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const baseColor =
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'#' + (normalizedColor ?? 0).toString(16).padStart(8, '0');
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const hitSlop = normalizeRect(props.hitSlop);
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return (
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<View
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pointerEvents="none"
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style={
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// eslint-disable-next-line react-native/no-inline-styles
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{
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backgroundColor: baseColor.slice(0, -2) + '0F', // 15%
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borderColor: baseColor.slice(0, -2) + '55', // 85%
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borderStyle: 'dashed',
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borderWidth: 1,
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bottom: -(hitSlop?.bottom ?? 0),
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left: -(hitSlop?.left ?? 0),
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position: 'absolute',
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right: -(hitSlop?.right ?? 0),
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top: -(hitSlop?.top ?? 0),
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}
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}
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/>
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);
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}
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}
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return null;
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}
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let isDebugEnabled = false;
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export function isEnabled(): boolean {
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if (__DEV__) {
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return isDebugEnabled;
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}
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return false;
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}
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export function setEnabled(value: boolean): void {
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if (__DEV__) {
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isDebugEnabled = value;
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}
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}
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