1 files changed, 134 insertions, 0 deletions
diff --git a/devtools/server/actors/targets/worker.js b/devtools/server/actors/targets/worker.js
new file mode 100644
index 0000000000..fb523b43c5
--- /dev/null
+++ b/devtools/server/actors/targets/worker.js
@@ -0,0 +1,134 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+"use strict";
+
+const {
+  workerTargetSpec,
+} = require("resource://devtools/shared/specs/targets/worker.js");
+
+const {
+  WebConsoleActor,
+} = require("resource://devtools/server/actors/webconsole.js");
+const { ThreadActor } = require("resource://devtools/server/actors/thread.js");
+const { TracerActor } = require("resource://devtools/server/actors/tracer.js");
+
+const Targets = require("resource://devtools/server/actors/targets/index.js");
+
+const makeDebuggerUtil = require("resource://devtools/server/actors/utils/make-debugger.js");
+const {
+  SourcesManager,
+} = require("resource://devtools/server/actors/utils/sources-manager.js");
+
+const {
+  BaseTargetActor,
+} = require("resource://devtools/server/actors/targets/base-target-actor.js");
+
+class WorkerTargetActor extends BaseTargetActor {
+  /**
+   * Target actor for a worker in the content process.
+   *
+   * @param {DevToolsServerConnection} conn: The connection to the client.
+   * @param {WorkerGlobalScope} workerGlobal: The worker global.
+   * @param {Object} workerDebuggerData: The worker debugger information
+   * @param {String} workerDebuggerData.id: The worker debugger id
+   * @param {String} workerDebuggerData.url: The worker debugger url
+   * @param {String} workerDebuggerData.type: The worker debugger type
+   * @param {Boolean} workerDebuggerData.workerConsoleApiMessagesDispatchedToMainThread:
+   *                  Value of the dom.worker.console.dispatch_events_to_main_thread pref
+   * @param {Object} sessionContext: The Session Context to help know what is debugged.
+   *                                 See devtools/server/actors/watcher/session-context.js
+   */
+  constructor(conn, workerGlobal, workerDebuggerData, sessionContext) {
+    super(conn, Targets.TYPES.WORKER, workerTargetSpec);
+
+    // workerGlobal is needed by the console actor for evaluations.
+    this.workerGlobal = workerGlobal;
+    this.sessionContext = sessionContext;
+
+    this._workerDebuggerData = workerDebuggerData;
+    this._sourcesManager = null;
+    this.workerConsoleApiMessagesDispatchedToMainThread =
+      workerDebuggerData.workerConsoleApiMessagesDispatchedToMainThread;
+
+    this.makeDebugger = makeDebuggerUtil.bind(null, {
+      findDebuggees: () => {
+        return [workerGlobal];
+      },
+      shouldAddNewGlobalAsDebuggee: () => true,
+    });
+
+    // needed by the console actor
+    this.threadActor = new ThreadActor(this, this.workerGlobal);
+
+    // needed by the thread actor to communicate with the console when evaluating logpoints.
+    this._consoleActor = new WebConsoleActor(this.conn, this);
+
+    this.tracerActor = new TracerActor(this.conn, this);
+
+    this.manage(this.threadActor);
+    this.manage(this._consoleActor);
+    this.manage(this.tracerActor);
+  }
+
+  // Expose the worker URL to the thread actor.
+  // so that it can easily know what is the base URL of all worker scripts.
+  get workerUrl() {
+    return this._workerDebuggerData.url;
+  }
+
+  form() {
+    return {
+      actor: this.actorID,
+
+      consoleActor: this._consoleActor?.actorID,
+      threadActor: this.threadActor?.actorID,
+      tracerActor: this.tracerActor?.actorID,
+
+      id: this._workerDebuggerData.id,
+      type: this._workerDebuggerData.type,
+      url: this._workerDebuggerData.url,
+      traits: {
+        // See trait description in browsing-context.js
+        supportsTopLevelTargetFlag: false,
+      },
+    };
+  }
+
+  get dbg() {
+    if (!this._dbg) {
+      this._dbg = this.makeDebugger();
+    }
+    return this._dbg;
+  }
+
+  get sourcesManager() {
+    if (this._sourcesManager === null) {
+      this._sourcesManager = new SourcesManager(this.threadActor);
+    }
+
+    return this._sourcesManager;
+  }
+
+  // This is called from the ThreadActor#onAttach method
+  onThreadAttached() {
+    // This isn't an RDP event and is only listened to from startup/worker.js.
+    this.emit("worker-thread-attached");
+  }
+
+  destroy() {
+    super.destroy();
+
+    if (this._sourcesManager) {
+      this._sourcesManager.destroy();
+      this._sourcesManager = null;
+    }
+
+    this.workerGlobal = null;
+    this._dbg = null;
+    this._consoleActor = null;
+    this.threadActor = null;
+  }
+}
+exports.WorkerTargetActor = WorkerTargetActor;