1 files changed, 118 insertions, 0 deletions
diff --git a/dom/base/MessageManagerGlobal.h b/dom/base/MessageManagerGlobal.h
new file mode 100644
index 0000000000..e1262efa69
--- /dev/null
+++ b/dom/base/MessageManagerGlobal.h
@@ -0,0 +1,118 @@
+/* -*- 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/. */
+
+#ifndef mozilla_dom_MessageManagerGlobal_h
+#define mozilla_dom_MessageManagerGlobal_h
+
+#include "nsFrameMessageManager.h"
+#include "mozilla/ErrorResult.h"
+
+namespace mozilla::dom {
+
+/**
+ * Base class for implementing the WebIDL MessageManagerGlobal class.
+ */
+class MessageManagerGlobal {
+ public:
+  // MessageListenerManager
+  void AddMessageListener(const nsAString& aMessageName,
+                          MessageListener& aListener, bool aListenWhenClosed,
+                          ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->AddMessageListener(aMessageName, aListener,
+                                        aListenWhenClosed, aError);
+  }
+  void RemoveMessageListener(const nsAString& aMessageName,
+                             MessageListener& aListener, ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->RemoveMessageListener(aMessageName, aListener, aError);
+  }
+  void AddWeakMessageListener(const nsAString& aMessageName,
+                              MessageListener& aListener, ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->AddWeakMessageListener(aMessageName, aListener, aError);
+  }
+  void RemoveWeakMessageListener(const nsAString& aMessageName,
+                                 MessageListener& aListener,
+                                 ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->RemoveWeakMessageListener(aMessageName, aListener, aError);
+  }
+
+  // MessageSender
+  void SendAsyncMessage(JSContext* aCx, const nsAString& aMessageName,
+                        JS::Handle<JS::Value> aObj,
+                        JS::Handle<JS::Value> aTransfers, ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->SendAsyncMessage(aCx, aMessageName, aObj, aTransfers,
+                                      aError);
+  }
+  already_AddRefed<ProcessMessageManager> GetProcessMessageManager(
+      mozilla::ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return nullptr;
+    }
+    return mMessageManager->GetProcessMessageManager(aError);
+  }
+
+  void GetRemoteType(nsACString& aRemoteType, mozilla::ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->GetRemoteType(aRemoteType, aError);
+  }
+
+  // SyncMessageSender
+  void SendSyncMessage(JSContext* aCx, const nsAString& aMessageName,
+                       JS::Handle<JS::Value> aObj, nsTArray<JS::Value>& aResult,
+                       ErrorResult& aError) {
+    if (!mMessageManager) {
+      aError.Throw(NS_ERROR_NOT_INITIALIZED);
+      return;
+    }
+    mMessageManager->SendSyncMessage(aCx, aMessageName, aObj, aResult, aError);
+  }
+
+  // MessageManagerGlobal
+  void Dump(const nsAString& aStr);
+  void Atob(const nsAString& aAsciiString, nsAString& aBase64Data,
+            ErrorResult& aError);
+  void Btoa(const nsAString& aBase64Data, nsAString& aAsciiString,
+            ErrorResult& aError);
+
+  void MarkForCC() {
+    if (mMessageManager) {
+      mMessageManager->MarkForCC();
+    }
+  }
+
+ protected:
+  explicit MessageManagerGlobal(nsFrameMessageManager* aMessageManager)
+      : mMessageManager(aMessageManager) {}
+
+  RefPtr<nsFrameMessageManager> mMessageManager;
+};
+
+}  // namespace mozilla::dom
+
+#endif  // mozilla_dom_MessageManagerGlobal_h