/
sourceTab.tsx
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/
sourceTab.tsx
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/**
* Copyright (c) Microsoft Corporation.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
import { ActionEntry } from '../../traceModel';
import * as React from 'react';
import { useAsyncMemo } from './helpers';
import './sourceTab.css';
import '../../../../third_party/highlightjs/highlightjs/tomorrow.css';
import * as highlightjs from '../../../../third_party/highlightjs/highlightjs';
type StackInfo = string | {
frames: {
filePath: string,
fileName: string,
lineNumber: number,
functionName: string,
}[];
fileContent: Map<string, string>;
};
export const SourceTab: React.FunctionComponent<{
actionEntry: ActionEntry | undefined,
}> = ({ actionEntry }) => {
const [lastAction, setLastAction] = React.useState<ActionEntry | undefined>();
const [selectedFrame, setSelectedFrame] = React.useState<number>(0);
const [needReveal, setNeedReveal] = React.useState<boolean>(false);
if (lastAction !== actionEntry) {
setLastAction(actionEntry);
setSelectedFrame(0);
setNeedReveal(true);
}
const stackInfo = React.useMemo<StackInfo>(() => {
if (!actionEntry)
return '';
const { action } = actionEntry;
if (!action.stack)
return '';
let frames = action.stack.split('\n').slice(1);
frames = frames.filter(frame => !frame.includes('playwright/lib/') && !frame.includes('playwright/src/'));
const info: StackInfo = {
frames: [],
fileContent: new Map(),
};
for (const frame of frames) {
let filePath: string;
let lineNumber: number;
let functionName: string;
const match1 = frame.match(/at ([^(]+)\(([^:]+):(\d+):\d+\)/);
const match2 = frame.match(/at ([^:^(]+):(\d+):\d+/);
if (match1) {
functionName = match1[1];
filePath = match1[2];
lineNumber = parseInt(match1[3], 10);
} else if (match2) {
functionName = '';
filePath = match2[1];
lineNumber = parseInt(match2[2], 10);
} else {
continue;
}
const pathSep = navigator.platform.includes('Win') ? '\\' : '/';
const fileName = filePath.substring(filePath.lastIndexOf(pathSep) + 1);
info.frames.push({
filePath,
fileName,
lineNumber,
functionName: functionName || '(anonymous)',
});
}
if (!info.frames.length)
return action.stack;
return info;
}, [actionEntry]);
const content = useAsyncMemo<string[]>(async () => {
let value: string;
if (typeof stackInfo === 'string') {
value = stackInfo;
} else {
const filePath = stackInfo.frames[selectedFrame].filePath;
if (!stackInfo.fileContent.has(filePath))
stackInfo.fileContent.set(filePath, await window.readFile(filePath).catch(e => `<Unable to read "${filePath}">`));
value = stackInfo.fileContent.get(filePath)!;
}
const result = [];
let continuation: any;
for (const line of (value || '').split('\n')) {
const highlighted = highlightjs.highlight('javascript', line, true, continuation);
continuation = highlighted.top;
result.push(highlighted.value);
}
return result;
}, [stackInfo, selectedFrame], []);
const targetLine = typeof stackInfo === 'string' ? -1 : stackInfo.frames[selectedFrame].lineNumber;
const targetLineRef = React.createRef<HTMLDivElement>();
React.useLayoutEffect(() => {
if (needReveal && targetLineRef.current) {
targetLineRef.current.scrollIntoView({ block: 'center', inline: 'nearest' });
setNeedReveal(false);
}
}, [needReveal, targetLineRef]);
return <div className='source-tab'>
<div className='source-content'>{
content.map((markup, index) => {
const isTargetLine = (index + 1) === targetLine;
return <div
key={index}
className={isTargetLine ? 'source-line-highlight' : ''}
ref={isTargetLine ? targetLineRef : null}
>
<div className='source-line-number'>{index + 1}</div>
<div className='source-code' dangerouslySetInnerHTML={{ __html: markup }}></div>
</div>;
})
}</div>
{typeof stackInfo !== 'string' && <div className='source-stack'>{
stackInfo.frames.map((frame, index) => {
return <div
key={index}
className={'source-stack-frame' + (selectedFrame === index ? ' selected' : '')}
onClick={() => {
setSelectedFrame(index);
setNeedReveal(true);
}}
>
<span className='source-stack-frame-function'>
{frame.functionName}
</span>
<span className='source-stack-frame-location'>
{frame.fileName}
</span>
<span className='source-stack-frame-line'>
{':' + frame.lineNumber}
</span>
</div>;
})
}</div>}
</div>;
};