DMleadgen
46d973904b
Next.js website for Rocky Mountain Vending company featuring: - Product catalog with Stripe integration - Service areas and parts pages - Admin dashboard with Clerk authentication - SEO optimized pages with JSON-LD structured data Co-authored-by: Cursor <cursoragent@cursor.com>
110 lines
No EOL
3.5 KiB
Text
110 lines
No EOL
3.5 KiB
Text
import { getReadableAsTypedArray, getReadableFromProtocolStream, } from '../common/util.js';
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import { assert } from '../util/assert.js';
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import { Deferred } from '../util/Deferred.js';
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import { isErrorLike } from '../util/ErrorLike.js';
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/**
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* The Tracing class exposes the tracing audit interface.
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* @remarks
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* You can use `tracing.start` and `tracing.stop` to create a trace file
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* which can be opened in Chrome DevTools or {@link https://chromedevtools.github.io/timeline-viewer/ | timeline viewer}.
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*
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* @example
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*
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* ```ts
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* await page.tracing.start({path: 'trace.json'});
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* await page.goto('https://www.google.com');
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* await page.tracing.stop();
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* ```
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*
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* @public
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*/
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export class Tracing {
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#client;
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#recording = false;
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#path;
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/**
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* @internal
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*/
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constructor(client) {
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this.#client = client;
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}
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/**
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* @internal
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*/
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updateClient(client) {
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this.#client = client;
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}
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/**
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* Starts a trace for the current page.
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* @remarks
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* Only one trace can be active at a time per browser.
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*
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* @param options - Optional `TracingOptions`.
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*/
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async start(options = {}) {
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assert(!this.#recording, 'Cannot start recording trace while already recording trace.');
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const defaultCategories = [
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'-*',
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'devtools.timeline',
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'v8.execute',
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'disabled-by-default-devtools.timeline',
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'disabled-by-default-devtools.timeline.frame',
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'toplevel',
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'blink.console',
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'blink.user_timing',
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'latencyInfo',
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'disabled-by-default-devtools.timeline.stack',
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'disabled-by-default-v8.cpu_profiler',
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];
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const { path, screenshots = false, categories = defaultCategories } = options;
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if (screenshots) {
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categories.push('disabled-by-default-devtools.screenshot');
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}
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const excludedCategories = categories
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.filter(cat => {
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return cat.startsWith('-');
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})
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.map(cat => {
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return cat.slice(1);
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});
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const includedCategories = categories.filter(cat => {
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return !cat.startsWith('-');
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});
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this.#path = path;
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this.#recording = true;
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await this.#client.send('Tracing.start', {
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transferMode: 'ReturnAsStream',
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traceConfig: {
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excludedCategories,
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includedCategories,
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},
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});
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}
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/**
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* Stops a trace started with the `start` method.
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* @returns Promise which resolves to buffer with trace data.
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*/
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async stop() {
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const contentDeferred = Deferred.create();
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this.#client.once('Tracing.tracingComplete', async (event) => {
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try {
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assert(event.stream, 'Missing "stream"');
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const readable = await getReadableFromProtocolStream(this.#client, event.stream);
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const typedArray = await getReadableAsTypedArray(readable, this.#path);
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contentDeferred.resolve(typedArray ?? undefined);
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}
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catch (error) {
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if (isErrorLike(error)) {
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contentDeferred.reject(error);
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}
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else {
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contentDeferred.reject(new Error(`Unknown error: ${error}`));
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}
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}
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});
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await this.#client.send('Tracing.end');
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this.#recording = false;
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return await contentDeferred.valueOrThrow();
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}
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}
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//# sourceMappingURL=Tracing.js.map |