playwright/src/server/snapshot/inMemorySnapshotter.ts
2021-04-07 14:32:12 -07:00

85 lines
2.8 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 { HttpServer } from '../../utils/httpServer';
import { BrowserContext } from '../browserContext';
import { helper } from '../helper';
import { Page } from '../page';
import { FrameSnapshot, ResourceSnapshot } from './snapshotTypes';
import { SnapshotRenderer } from './snapshotRenderer';
import { SnapshotServer } from './snapshotServer';
import { BaseSnapshotStorage } from './snapshotStorage';
import { Snapshotter, SnapshotterBlob, SnapshotterDelegate } from './snapshotter';
import { ElementHandle } from '../dom';
export class InMemorySnapshotter extends BaseSnapshotStorage implements SnapshotterDelegate {
private _blobs = new Map<string, Buffer>();
private _server: HttpServer;
private _snapshotter: Snapshotter;
constructor(context: BrowserContext) {
super();
this._server = new HttpServer();
new SnapshotServer(this._server, this);
this._snapshotter = new Snapshotter(context, this);
}
async initialize(): Promise<string> {
await this._snapshotter.initialize();
return await this._server.start();
}
async dispose() {
this._snapshotter.dispose();
await this._server.stop();
}
async captureSnapshot(page: Page, snapshotName: string, element?: ElementHandle): Promise<SnapshotRenderer> {
if (this._frameSnapshots.has(snapshotName))
throw new Error('Duplicate snapshot name: ' + snapshotName);
this._snapshotter.captureSnapshot(page, snapshotName, element);
return new Promise<SnapshotRenderer>(fulfill => {
const listener = helper.addEventListener(this, 'snapshot', (renderer: SnapshotRenderer) => {
if (renderer.snapshotName === snapshotName) {
helper.removeEventListeners([listener]);
fulfill(renderer);
}
});
});
}
async setAutoSnapshotIntervalForTest(interval: number): Promise<void> {
await this._snapshotter.setAutoSnapshotInterval(interval);
}
onBlob(blob: SnapshotterBlob): void {
this._blobs.set(blob.sha1, blob.buffer);
}
onResourceSnapshot(resource: ResourceSnapshot): void {
this.addResource(resource);
}
onFrameSnapshot(snapshot: FrameSnapshot): void {
this.addFrameSnapshot(snapshot);
}
resourceContent(sha1: string): Buffer | undefined {
return this._blobs.get(sha1);
}
}