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/**
* @license
* Copyright 2019 Google Inc.
* SPDX-License-Identifier: Apache-2.0
*/
import type {Protocol} from 'devtools-protocol';
import type {CDPSession} from '../api/CDPSession.js';
import {JSHandle} from '../api/JSHandle.js';
import {debugError} from '../common/util.js';
import type {CdpElementHandle} from './ElementHandle.js';
import type {IsolatedWorld} from './IsolatedWorld.js';
import {valueFromRemoteObject} from './utils.js';
/**
* @internal
*/
export class CdpJSHandle<T = unknown> extends JSHandle<T> {
#disposed = false;
readonly #remoteObject: Protocol.Runtime.RemoteObject;
readonly #world: IsolatedWorld;
constructor(
world: IsolatedWorld,
remoteObject: Protocol.Runtime.RemoteObject
) {
super();
this.#world = world;
this.#remoteObject = remoteObject;
}
override get disposed(): boolean {
return this.#disposed;
}
override get realm(): IsolatedWorld {
return this.#world;
}
get client(): CDPSession {
return this.realm.environment.client;
}
override async jsonValue(): Promise<T> {
if (!this.#remoteObject.objectId) {
return valueFromRemoteObject(this.#remoteObject);
}
const value = await this.evaluate(object => {
return object;
});
if (value === undefined) {
throw new Error('Could not serialize referenced object');
}
return value;
}
/**
* Either `null` or the handle itself if the handle is an
* instance of {@link ElementHandle}.
*/
override asElement(): CdpElementHandle<Node> | null {
return null;
}
override async dispose(): Promise<void> {
if (this.#disposed) {
return;
}
this.#disposed = true;
await releaseObject(this.client, this.#remoteObject);
}
override toString(): string {
if (!this.#remoteObject.objectId) {
return 'JSHandle:' + valueFromRemoteObject(this.#remoteObject);
}
const type = this.#remoteObject.subtype || this.#remoteObject.type;
return 'JSHandle@' + type;
}
override get id(): string | undefined {
return this.#remoteObject.objectId;
}
override remoteObject(): Protocol.Runtime.RemoteObject {
return this.#remoteObject;
}
}
/**
* @internal
*/
export async function releaseObject(
client: CDPSession,
remoteObject: Protocol.Runtime.RemoteObject
): Promise<void> {
if (!remoteObject.objectId) {
return;
}
await client
.send('Runtime.releaseObject', {objectId: remoteObject.objectId})
.catch(error => {
// Exceptions might happen in case of a page been navigated or closed.
// Swallow these since they are harmless and we don't leak anything in this case.
debugError(error);
});
}
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