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cdpSession.ts
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cdpSession.ts
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/**
* 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 { CDPSessionChannel, CDPSessionInitializer } from '../channels';
import { ConnectionScope } from './connection';
import { ChannelOwner } from './channelOwner';
import { Protocol } from '../../chromium/protocol';
export class CDPSession extends ChannelOwner<CDPSessionChannel, CDPSessionInitializer> {
static from(cdpSession: CDPSessionChannel): CDPSession {
return (cdpSession as any)._object;
}
on: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
addListener: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
off: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
removeListener: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
once: <T extends keyof Protocol.Events | symbol>(event: T, listener: (payload: T extends symbol ? any : Protocol.Events[T extends keyof Protocol.Events ? T : never]) => void) => this;
constructor(scope: ConnectionScope, guid: string, initializer: CDPSessionInitializer) {
super(scope, guid, initializer, true);
this._channel.on('event', ({ method, params }) => this.emit(method, params));
this._channel.on('disconnected', () => this._scope.dispose());
this.on = super.on;
this.addListener = super.addListener;
this.off = super.removeListener;
this.removeListener = super.removeListener;
this.once = super.once;
}
async send<T extends keyof Protocol.CommandParameters>(
method: T,
params?: Protocol.CommandParameters[T]
): Promise<Protocol.CommandReturnValues[T]> {
const result = await this._channel.send({ method, params });
return result as Protocol.CommandReturnValues[T];
}
async detach() {
return this._channel.detach();
}
}