2023-03-09 19:34:05 -08:00

98 lines
3.4 KiB
TypeScript

/**
* 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 type { StackFrame } from '@protocol/channels';
import type { ActionTraceEvent } from '@trace/trace';
import { Source as SourceView } from '@web/components/source';
import { SplitView } from '@web/components/splitView';
import * as React from 'react';
import { useAsyncMemo } from './helpers';
import './sourceTab.css';
import { StackTraceView } from './stackTrace';
type StackInfo = string | {
frames: StackFrame[];
fileContent: Map<string, string>;
};
export const SourceTab: React.FunctionComponent<{
action: ActionTraceEvent | undefined,
}> = ({ action }) => {
const [lastAction, setLastAction] = React.useState<ActionTraceEvent | undefined>();
const [selectedFrame, setSelectedFrame] = React.useState<number>(0);
const [needReveal, setNeedReveal] = React.useState<boolean>(false);
if (lastAction !== action) {
setLastAction(action);
setSelectedFrame(0);
setNeedReveal(true);
}
const stackInfo = React.useMemo<StackInfo>(() => {
if (!action)
return '';
const frames = action.stack || [];
return {
frames,
fileContent: new Map(),
};
}, [action]);
const content = useAsyncMemo<string>(async () => {
let value: string;
if (typeof stackInfo === 'string') {
value = stackInfo;
} else {
const filePath = stackInfo.frames[selectedFrame]?.file;
if (!filePath)
return '';
if (!stackInfo.fileContent.has(filePath)) {
const sha1 = await calculateSha1(filePath);
stackInfo.fileContent.set(filePath, await fetch(`sha1/src@${sha1}.txt`).then(response => response.text()).catch(e => `<Unable to read "${filePath}">`));
}
value = stackInfo.fileContent.get(filePath)!;
}
return value;
}, [stackInfo, selectedFrame], '');
const targetLine = typeof stackInfo === 'string' ? 0 : stackInfo.frames[selectedFrame]?.line || 0;
const targetLineRef = React.useRef<HTMLDivElement>(null);
React.useLayoutEffect(() => {
if (needReveal && targetLineRef.current) {
targetLineRef.current.scrollIntoView({ block: 'center', inline: 'nearest' });
setNeedReveal(false);
}
}, [needReveal, targetLineRef]);
return <SplitView sidebarSize={200} orientation='horizontal'>
<SourceView text={content} language='javascript' highlight={[{ line: targetLine, type: 'running' }]} revealLine={targetLine}></SourceView>
<StackTraceView action={action} selectedFrame={selectedFrame} setSelectedFrame={setSelectedFrame}></StackTraceView>
</SplitView>;
};
export async function calculateSha1(text: string): Promise<string> {
const buffer = new TextEncoder().encode(text);
const hash = await crypto.subtle.digest('SHA-1', buffer);
const hexCodes = [];
const view = new DataView(hash);
for (let i = 0; i < view.byteLength; i += 1) {
const byte = view.getUint8(i).toString(16).padStart(2, '0');
hexCodes.push(byte);
}
return hexCodes.join('');
}