1 files changed, 155 insertions, 0 deletions
diff --git a/dom/workers/sharedworkers/SharedWorkerChild.cpp b/dom/workers/sharedworkers/SharedWorkerChild.cpp
new file mode 100644
index 0000000000..b11fffdcf4
--- /dev/null
+++ b/dom/workers/sharedworkers/SharedWorkerChild.cpp
@@ -0,0 +1,155 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* 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/. */
+
+#include "SharedWorkerChild.h"
+#include "mozilla/dom/ErrorEvent.h"
+#include "mozilla/dom/ErrorEventBinding.h"
+#include "mozilla/dom/Exceptions.h"
+#include "mozilla/dom/RootedDictionary.h"
+#include "mozilla/dom/ScriptSettings.h"
+#include "mozilla/dom/SharedWorker.h"
+#include "mozilla/dom/WebTransport.h"
+#include "mozilla/dom/WindowGlobalChild.h"
+#include "mozilla/dom/WorkerError.h"
+#include "mozilla/dom/locks/LockManagerChild.h"
+
+namespace mozilla {
+
+using namespace ipc;
+
+namespace dom {
+
+SharedWorkerChild::SharedWorkerChild() : mParent(nullptr), mActive(true) {}
+
+SharedWorkerChild::~SharedWorkerChild() = default;
+
+void SharedWorkerChild::ActorDestroy(ActorDestroyReason aWhy) {
+  mActive = false;
+}
+
+void SharedWorkerChild::SendClose() {
+  if (mActive) {
+    // This is the last message.
+    mActive = false;
+    PSharedWorkerChild::SendClose();
+  }
+}
+
+void SharedWorkerChild::SendSuspend() {
+  if (mActive) {
+    PSharedWorkerChild::SendSuspend();
+  }
+}
+
+void SharedWorkerChild::SendResume() {
+  if (mActive) {
+    PSharedWorkerChild::SendResume();
+  }
+}
+
+void SharedWorkerChild::SendFreeze() {
+  if (mActive) {
+    PSharedWorkerChild::SendFreeze();
+  }
+}
+
+void SharedWorkerChild::SendThaw() {
+  if (mActive) {
+    PSharedWorkerChild::SendThaw();
+  }
+}
+
+IPCResult SharedWorkerChild::RecvError(const ErrorValue& aValue) {
+  if (!mParent) {
+    return IPC_OK();
+  }
+
+  if (aValue.type() == ErrorValue::Tnsresult) {
+    mParent->ErrorPropagation(aValue.get_nsresult());
+    return IPC_OK();
+  }
+
+  nsPIDOMWindowInner* window = mParent->GetOwner();
+  uint64_t innerWindowId = window ? window->WindowID() : 0;
+
+  if (aValue.type() == ErrorValue::TErrorData &&
+      aValue.get_ErrorData().isWarning()) {
+    // Don't fire any events for warnings. Just log to console.
+    WorkerErrorReport::LogErrorToConsole(aValue.get_ErrorData(), innerWindowId);
+    return IPC_OK();
+  }
+
+  AutoJSAPI jsapi;
+  jsapi.Init();
+
+  RefPtr<Event> event;
+  if (aValue.type() == ErrorValue::TErrorData) {
+    const ErrorData& errorData = aValue.get_ErrorData();
+    RootedDictionary<ErrorEventInit> errorInit(jsapi.cx());
+    errorInit.mBubbles = false;
+    errorInit.mCancelable = true;
+    errorInit.mMessage = errorData.message();
+    errorInit.mFilename = errorData.filename();
+    errorInit.mLineno = errorData.lineNumber();
+    errorInit.mColno = errorData.columnNumber();
+
+    event = ErrorEvent::Constructor(mParent, u"error"_ns, errorInit);
+  } else {
+    event = Event::Constructor(mParent, u"error"_ns, EventInit());
+  }
+  event->SetTrusted(true);
+
+  ErrorResult res;
+  bool defaultActionEnabled =
+      mParent->DispatchEvent(*event, CallerType::System, res);
+  if (res.Failed()) {
+    ThrowAndReport(window, res.StealNSResult());
+    return IPC_OK();
+  }
+
+  if (aValue.type() != ErrorValue::TErrorData) {
+    MOZ_ASSERT(aValue.type() == ErrorValue::Tvoid_t);
+    return IPC_OK();
+  }
+
+  if (defaultActionEnabled) {
+    WorkerErrorReport::LogErrorToConsole(aValue.get_ErrorData(), innerWindowId);
+  }
+
+  return IPC_OK();
+}
+
+IPCResult SharedWorkerChild::RecvNotifyLock(bool aCreated) {
+  if (!mParent) {
+    return IPC_OK();
+  }
+
+  locks::LockManagerChild::NotifyBFCacheOnMainThread(mParent->GetOwner(),
+                                                     aCreated);
+
+  return IPC_OK();
+}
+
+IPCResult SharedWorkerChild::RecvNotifyWebTransport(bool aCreated) {
+  if (!mParent) {
+    return IPC_OK();
+  }
+
+  WebTransport::NotifyBFCacheOnMainThread(mParent->GetOwner(), aCreated);
+
+  return IPC_OK();
+}
+
+IPCResult SharedWorkerChild::RecvTerminate() {
+  if (mParent) {
+    mParent->Close();
+  }
+
+  return IPC_OK();
+}
+
+}  // namespace dom
+}  // namespace mozilla