зеркало из https://github.com/mozilla/gecko-dev.git
545 строки
17 KiB
JavaScript
545 строки
17 KiB
JavaScript
/* -*- indent-tabs-mode: nil; js-indent-level: 2 -*- */
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/* vim: set ft=javascript ts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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"use strict";
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const DevToolsUtils = require("devtools/shared/DevToolsUtils");
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const LongStringClient = require("devtools/shared/client/long-string-client");
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const { FrontClassWithSpec, registerFront } = require("devtools/shared/protocol");
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const { webconsoleSpec } = require("devtools/shared/specs/webconsole");
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/**
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* A WebConsoleClient is used as a front end for the WebConsoleActor that is
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* created on the server, hiding implementation details.
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*
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* @param object debuggerClient
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* The DebuggerClient instance we live for.
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* @param object response
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* The response packet received from the "startListeners" request sent to
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* the WebConsoleActor.
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*/
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class WebConsoleFront extends FrontClassWithSpec(webconsoleSpec) {
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constructor(client) {
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super(client);
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this._client = client;
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this.traits = {};
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this._longStrings = {};
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this.events = [];
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// Attribute name from which to retrieve the actorID out of the target actor's form
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this.formAttributeName = "consoleActor";
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/**
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* Holds the network requests currently displayed by the Web Console. Each key
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* represents the connection ID and the value is network request information.
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* @private
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* @type object
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*/
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this._networkRequests = new Map();
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this.pendingEvaluationResults = new Map();
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this.onEvaluationResult = this.onEvaluationResult.bind(this);
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this.onNetworkEvent = this._onNetworkEvent.bind(this);
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this.onNetworkEventUpdate = this._onNetworkEventUpdate.bind(this);
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this.on("evaluationResult", this.onEvaluationResult);
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this.on("serverNetworkEvent", this.onNetworkEvent);
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this._client.addListener("networkEventUpdate", this.onNetworkEventUpdate);
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}
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getNetworkRequest(actorId) {
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return this._networkRequests.get(actorId);
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}
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getNetworkEvents() {
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return this._networkRequests.values();
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}
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get actor() {
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return this.actorID;
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}
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/**
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* The "networkEvent" message type handler. We redirect any message to
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* the UI for displaying.
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*
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* @private
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* @param string type
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* Message type.
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* @param object packet
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* The message received from the server.
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*/
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_onNetworkEvent(packet) {
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const actor = packet.eventActor;
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const networkInfo = {
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_type: "NetworkEvent",
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timeStamp: actor.timeStamp,
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node: null,
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actor: actor.actor,
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discardRequestBody: true,
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discardResponseBody: true,
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startedDateTime: actor.startedDateTime,
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request: {
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url: actor.url,
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method: actor.method,
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},
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isXHR: actor.isXHR,
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cause: actor.cause,
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response: {},
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timings: {},
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// track the list of network event updates
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updates: [],
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private: actor.private,
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fromCache: actor.fromCache,
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fromServiceWorker: actor.fromServiceWorker,
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isThirdPartyTrackingResource: actor.isThirdPartyTrackingResource,
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referrerPolicy: actor.referrerPolicy,
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};
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this._networkRequests.set(actor.actor, networkInfo);
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this.emit("networkEvent", networkInfo);
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}
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/**
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* The "networkEventUpdate" message type handler. We redirect any message to
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* the UI for displaying.
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*
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* @private
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* @param string type
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* Message type.
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* @param object packet
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* The message received from the server.
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*/
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_onNetworkEventUpdate(type, packet) {
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const networkInfo = this.getNetworkRequest(packet.from);
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if (!networkInfo) {
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return;
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}
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networkInfo.updates.push(packet.updateType);
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switch (packet.updateType) {
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case "requestHeaders":
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networkInfo.request.headersSize = packet.headersSize;
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break;
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case "requestPostData":
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networkInfo.discardRequestBody = packet.discardRequestBody;
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networkInfo.request.bodySize = packet.dataSize;
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break;
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case "responseStart":
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networkInfo.response.httpVersion = packet.response.httpVersion;
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networkInfo.response.status = packet.response.status;
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networkInfo.response.statusText = packet.response.statusText;
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networkInfo.response.headersSize = packet.response.headersSize;
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networkInfo.response.remoteAddress = packet.response.remoteAddress;
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networkInfo.response.remotePort = packet.response.remotePort;
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networkInfo.discardResponseBody = packet.response.discardResponseBody;
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break;
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case "responseContent":
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networkInfo.response.content = {
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mimeType: packet.mimeType,
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};
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networkInfo.response.bodySize = packet.contentSize;
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networkInfo.response.transferredSize = packet.transferredSize;
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networkInfo.discardResponseBody = packet.discardResponseBody;
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break;
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case "eventTimings":
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networkInfo.totalTime = packet.totalTime;
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break;
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case "securityInfo":
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networkInfo.securityState = packet.state;
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break;
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case "responseCache":
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networkInfo.response.responseCache = packet.responseCache;
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break;
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}
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this.emit("networkEventUpdate", {
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packet: packet,
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networkInfo,
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});
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}
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/**
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* Evaluate a JavaScript expression.
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*
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* @param string string
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* The code you want to evaluate.
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* @param object [options={}]
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* Options for evaluation:
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*
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* - bindObjectActor: an ObjectActor ID. The OA holds a reference to
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* a Debugger.Object that wraps a content object. This option allows
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* you to bind |_self| to the D.O of the given OA, during string
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* evaluation.
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*
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* See: Debugger.Object.executeInGlobalWithBindings() for information
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* about bindings.
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*
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* Use case: the variable view needs to update objects and it does so
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* by knowing the ObjectActor it inspects and binding |_self| to the
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* D.O of the OA. As such, variable view sends strings like these for
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* eval:
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* _self["prop"] = value;
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*
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* - frameActor: a FrameActor ID. The FA holds a reference to
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* a Debugger.Frame. This option allows you to evaluate the string in
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* the frame of the given FA.
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*
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* - url: the url to evaluate the script as. Defaults to
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* "debugger eval code".
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*
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* - selectedNodeActor: the NodeActor ID of the current
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* selection in the Inspector, if such a selection
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* exists. This is used by helper functions that can
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* reference the currently selected node in the Inspector,
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* like $0.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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evaluateJS(string, opts = {}) {
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const options = {
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text: string,
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bindObjectActor: opts.bindObjectActor,
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frameActor: opts.frameActor,
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url: opts.url,
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selectedNodeActor: opts.selectedNodeActor,
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selectedObjectActor: opts.selectedObjectActor,
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};
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return super.evaluateJS(options);
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}
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/**
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* Evaluate a JavaScript expression asynchronously.
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* See evaluateJS for parameter and response information.
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*/
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evaluateJSAsync(string, opts = {}) {
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const options = {
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text: string,
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bindObjectActor: opts.bindObjectActor,
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frameActor: opts.frameActor,
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url: opts.url,
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selectedNodeActor: opts.selectedNodeActor,
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selectedObjectActor: opts.selectedObjectActor,
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mapped: opts.mapped,
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};
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return new Promise(async (resolve, reject) => {
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const response = await super.evaluateJSAsync(options);
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// Null check this in case the client has been detached while waiting
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// for a response.
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if (this.pendingEvaluationResults) {
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this.pendingEvaluationResults.set(response.resultID, resp => {
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if (resp.error) {
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reject(resp);
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} else {
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resolve(resp);
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}
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});
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}
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});
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}
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/**
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* Handler for the actors's unsolicited evaluationResult packet.
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*/
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onEvaluationResult(packet) {
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// Find the associated callback based on this ID, and fire it.
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// In a sync evaluation, this would have already been called in
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// direct response to the client.request function.
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const onResponse = this.pendingEvaluationResults.get(packet.resultID);
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if (onResponse) {
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onResponse(packet);
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this.pendingEvaluationResults.delete(packet.resultID);
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} else {
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DevToolsUtils.reportException("onEvaluationResult",
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"No response handler for an evaluateJSAsync result (resultID: " +
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packet.resultID + ")");
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}
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}
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/**
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* Retrieve the request headers from the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getRequestHeaders(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getRequestHeaders",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the request cookies from the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getRequestCookies(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getRequestCookies",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the request post data from the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getRequestPostData(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getRequestPostData",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the response headers from the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getResponseHeaders(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getResponseHeaders",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the response cookies from the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getResponseCookies(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getResponseCookies",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the response content from the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getResponseContent(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getResponseContent",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the response cache from the given NetworkEventActor
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces.
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*/
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getResponseCache(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getResponseCache",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the timing information for the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getEventTimings(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getEventTimings",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the security information for the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the response is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getSecurityInfo(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getSecurityInfo",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Retrieve the stack-trace information for the given NetworkEventActor.
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*
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* @param string actor
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* The NetworkEventActor ID.
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* @param function onResponse
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* The function invoked when the stack-trace is received.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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getStackTrace(actor, onResponse) {
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const packet = {
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to: actor,
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type: "getStackTrace",
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};
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return this._client.request(packet, onResponse);
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}
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/**
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* Start the given Web Console listeners.
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* TODO: remove once the front is retrieved via getFront, and we use form()
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*
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* @see this.LISTENERS
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* @param array listeners
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* Array of listeners you want to start. See this.LISTENERS for
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* known listeners.
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* @return request
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* Request object that implements both Promise and EventEmitter interfaces
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*/
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async startListeners(listeners) {
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const response = await super.startListeners(listeners);
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this.hasNativeConsoleAPI = response.nativeConsoleAPI;
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this.traits = response.traits;
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return response;
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}
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/**
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* Return an instance of LongStringClient for the given long string grip.
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*
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* @param object grip
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* The long string grip returned by the protocol.
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* @return object
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* The LongStringClient for the given long string grip.
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*/
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longString(grip) {
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if (grip.actor in this._longStrings) {
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return this._longStrings[grip.actor];
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}
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const client = new LongStringClient(this._client, grip);
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this._longStrings[grip.actor] = client;
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return client;
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}
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/**
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* Close the WebConsoleClient.
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*
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*/
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destroy() {
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if (!this._client) {
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return null;
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}
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this.off("evaluationResult", this.onEvaluationResult);
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this.off("serverNetworkEvent", this.onNetworkEvent);
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this._client.removeListener("networkEventUpdate",
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this.onNetworkEventUpdate);
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this._longStrings = null;
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this._client = null;
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this.pendingEvaluationResults.clear();
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this.pendingEvaluationResults = null;
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this.clearNetworkRequests();
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this._networkRequests = null;
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return super.destroy();
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}
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clearNetworkRequests() {
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this._networkRequests.clear();
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}
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/**
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* Fetches the full text of a LongString.
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*
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* @param object | string stringGrip
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* The long string grip containing the corresponding actor.
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* If you pass in a plain string (by accident or because you're lazy),
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* then a promise of the same string is simply returned.
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* @return object Promise
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* A promise that is resolved when the full string contents
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* are available, or rejected if something goes wrong.
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*/
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getString(stringGrip) {
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// Make sure this is a long string.
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if (typeof stringGrip !== "object" || stringGrip.type !== "longString") {
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// Go home string, you're drunk.
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return Promise.resolve(stringGrip);
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}
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// Fetch the long string only once.
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if (stringGrip._fullText) {
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return stringGrip._fullText;
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}
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return new Promise((resolve, reject) => {
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const { initial, length } = stringGrip;
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const longStringClient = this.longString(stringGrip);
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longStringClient.substring(initial.length, length, response => {
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if (response.error) {
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DevToolsUtils.reportException("getString",
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response.error + ": " + response.message);
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reject(response);
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}
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resolve(initial + response.substring);
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});
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});
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}
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}
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exports.WebConsoleFront = WebConsoleFront;
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registerFront(WebConsoleFront);
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