96 lines
3.1 KiB
TypeScript
96 lines
3.1 KiB
TypeScript
/**
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* Copyright 2019 Google Inc. All rights reserved.
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* Modifications copyright (c) Microsoft Corporation.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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import { helper, RegisteredListener } from '../helper';
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import { Browser, BrowserContext } from './Browser';
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import { Page } from './Page';
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import { Protocol } from './protocol';
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export class Target {
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private _browserContext: BrowserContext;
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_targetId: string;
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private _type: 'page' | 'service-worker' | 'worker';
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_pagePromise: Promise<Page> | null = null;
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private _openerId?: string;
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private _url: string;
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_initializedPromise: Promise<boolean>;
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_initializedCallback: (value?: unknown) => void;
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_isClosedPromise: Promise<void>;
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_closedCallback: (value?: unknown) => void;
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_isInitialized: boolean;
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_eventListeners: RegisteredListener[];
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constructor(targetInfo: Protocol.Target.TargetInfo, browserContext: BrowserContext, openerId?: string) {
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const {targetId, url, type} = targetInfo;
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this._browserContext = browserContext;
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this._targetId = targetId;
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this._type = type;
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/** @type {?Promise<!Page>} */
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this._pagePromise = null;
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this._url = url;
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this._openerId = openerId;
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this._isClosedPromise = new Promise(fulfill => this._closedCallback = fulfill);
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if (type === 'page') {
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const session = this._browserContext.browser()._connection.session(this._targetId);
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this._eventListeners = [
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// FIXME: we could use Page.frameStartedLoading if it had url info.
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helper.addEventListener(session, 'Page.frameNavigated', this._onFrameNavigated.bind(this)),
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];
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}
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}
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async _onFrameNavigated(params: Protocol.Page.frameNavigatedPayload) {
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// Check if main frame, get url from the event.
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// Skip child frames.
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if (params.frame.parentId)
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return;
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const url = params.frame.url;
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if (this._url !== url) {
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this._url = url;
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this.browser()._onTargetChanged(this);
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}
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}
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async page(): Promise<Page | null> {
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if (this._type === 'page' && !this._pagePromise) {
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const session = this.browser()._connection.session(this._targetId);
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this._pagePromise = Page.create(session, this, this.browser()._defaultViewport, this.browser()._screenshotTaskQueue);
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}
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return this._pagePromise;
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}
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url(): string {
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return this._url;
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}
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type(): 'page' | 'service-worker' | 'worker' {
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return this._type;
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}
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browser(): Browser {
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return this._browserContext.browser();
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}
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browserContext(): BrowserContext {
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return this._browserContext;
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}
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opener(): Target | null {
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return this._openerId ? this.browser()._targets.get(this._openerId) : null;
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}
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}
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