chrome-devtools-frontend
Version:
Chrome DevTools UI
83 lines (72 loc) • 2.17 kB
JavaScript
// Copyright 2016 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
import * as Extensions from '../extensions/extensions.js'; // eslint-disable-line no-unused-vars
import * as SDK from '../sdk/sdk.js'; // eslint-disable-line no-unused-vars
import {PerformanceModel} from './PerformanceModel.js'; // eslint-disable-line no-unused-vars
import {Client, TimelineLoader} from './TimelineLoader.js'; // eslint-disable-line no-unused-vars
/**
* @implements {Extensions.ExtensionTraceProvider.TracingSession}
* @implements {Client}
*/
export class ExtensionTracingSession {
/**
* @param {!Extensions.ExtensionTraceProvider.ExtensionTraceProvider} provider
* @param {!PerformanceModel} performanceModel
*/
constructor(provider, performanceModel) {
this._provider = provider;
this._performanceModel = performanceModel;
/** @type {function(): void} */
this._completionCallback;
/** @type {!Promise<void>} */
this._completionPromise = new Promise(fulfill => {
this._completionCallback = fulfill;
});
this._timeOffset = 0;
}
/** @override */
loadingStarted() {
}
/** @override */
processingStarted() {
}
/**
* @override
* @param {number=} progress
*/
loadingProgress(progress) {
}
/**
* @override
* @param {?SDK.TracingModel.TracingModel} tracingModel
*/
loadingComplete(tracingModel) {
if (!tracingModel) {
return;
}
this._performanceModel.addExtensionEvents(this._provider.longDisplayName(), tracingModel, this._timeOffset);
this._completionCallback();
}
/**
* @override
* @param {string} url
* @param {number} timeOffsetMicroseconds
*/
complete(url, timeOffsetMicroseconds) {
if (!url) {
this._completionCallback();
return;
}
this._timeOffset = timeOffsetMicroseconds;
TimelineLoader.loadFromURL(url, this);
}
start() {
this._provider.start(this);
}
/** @return {!Promise<void>} */
stop() {
this._provider.stop();
return this._completionPromise;
}
}