Files
react-native/Libraries/LogBox/UI/LogBoxInspectorCodeFrame.js
T
Christoph Nakazawa 16e72ad370 Syntax highlighting for LogBox Code Frames
Summary:
This diff adds syntax highlighting to LogBox CodeFrames. It works by turning Ansi codes into "JSON" (it's actually just a JS object but the third-party API uses JSON as terminology) and then turning that into `<Text>` elements.

The syntax theme is called Afterglow and I took it from https://iterm2colorschemes.com/. Happy for anyone who wants to further tweak it! I installed this into iTerm and extracted the colors from there as it has a color picker and the labels directly map to the color classes exposed by the `anser` package.

Changelog: [Internal]

(Note: this ignores all push blocking failures!)

Reviewed By: rickhanlonii

Differential Revision: D18618897

fbshipit-source-id: 64815619fc482e08b5671f492dabda8c8c0ceca5
2019-11-22 09:09:09 -08:00

132 lines
3.3 KiB
JavaScript

/**
* Copyright (c) Facebook, Inc. and its affiliates.
*
* This source code is licensed under the MIT license found in the
* LICENSE file in the root directory of this source tree.
*
* @flow
* @format
*/
'use strict';
import * as React from 'react';
import {Platform, ScrollView} from 'react-native';
import StyleSheet from '../../StyleSheet/StyleSheet';
import Text from '../../Text/Text';
import View from '../../Components/View/View';
import * as LogBoxStyle from './LogBoxStyle';
import type {CodeFrame} from '../Data/parseLogBoxLog';
import LogBoxButton from './LogBoxButton';
import openFileInEditor from '../../Core/Devtools/openFileInEditor';
import AnsiHighlight from './AnsiHighlight';
import LogBoxInspectorSection from './LogBoxInspectorSection';
import * as LogBoxData from '../Data/LogBoxData';
type Props = $ReadOnly<{|
codeFrame: ?CodeFrame,
|}>;
function LogBoxInspectorCodeFrame(props: Props): React.Node {
const codeFrame = props.codeFrame;
if (codeFrame == null) {
return null;
}
function getFileName() {
const matches = /[^/]*$/.exec(codeFrame.fileName);
if (matches && matches.length > 0) {
return matches[0];
}
return codeFrame.fileName;
}
return (
<LogBoxInspectorSection heading="Source" action={<AppInfo />}>
<View style={styles.box}>
<View style={styles.frame}>
<ScrollView horizontal>
<AnsiHighlight style={styles.content} text={codeFrame.content} />
</ScrollView>
</View>
<LogBoxButton
backgroundColor={{
default: 'transparent',
pressed: LogBoxStyle.getBackgroundDarkColor(1),
}}
style={styles.button}
onPress={() => {
openFileInEditor(codeFrame.fileName, codeFrame.location?.row ?? 0);
}}>
<Text style={styles.fileText}>
{getFileName()} ({codeFrame.location.row}:
{codeFrame.location.column +
1 /* Code frame columns are zero indexed */}
)
</Text>
</LogBoxButton>
</View>
</LogBoxInspectorSection>
);
}
function AppInfo() {
const appInfo = LogBoxData.getAppInfo();
if (appInfo == null) {
return null;
}
return (
<Text style={appInfoStyles.text}>
{appInfo.appVersion} ({appInfo.engine})
</Text>
);
}
const appInfoStyles = StyleSheet.create({
text: {
color: LogBoxStyle.getTextColor(0.4),
fontSize: 12,
lineHeight: 12,
flex: 0,
flexGrow: 0,
},
});
const styles = StyleSheet.create({
box: {
backgroundColor: LogBoxStyle.getBackgroundColor(),
marginLeft: 10,
marginRight: 10,
marginTop: 5,
borderRadius: 3,
},
frame: {
padding: 10,
borderBottomColor: LogBoxStyle.getTextColor(0.1),
borderBottomWidth: 1,
},
button: {
paddingTop: 10,
paddingBottom: 10,
},
content: {
color: LogBoxStyle.getTextColor(1),
fontSize: 12,
includeFontPadding: false,
lineHeight: 20,
fontFamily: Platform.select({android: 'monospace', ios: 'Menlo'}),
},
fileText: {
color: LogBoxStyle.getTextColor(0.5),
textAlign: 'center',
flex: 1,
fontSize: 12,
includeFontPadding: false,
lineHeight: 16,
fontFamily: Platform.select({android: 'monospace', ios: 'Menlo'}),
},
});
export default LogBoxInspectorCodeFrame;