1 files changed, 82 insertions, 0 deletions
diff --git a/parser/html/nsHtml5StreamListener.cpp b/parser/html/nsHtml5StreamListener.cpp
new file mode 100644
index 000000000..a585ce8de
--- /dev/null
+++ b/parser/html/nsHtml5StreamListener.cpp
@@ -0,0 +1,82 @@
+/* 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 "nsHtml5StreamListener.h"
+
+NS_IMPL_ADDREF(nsHtml5StreamListener)
+NS_IMPL_RELEASE(nsHtml5StreamListener)
+
+NS_INTERFACE_MAP_BEGIN(nsHtml5StreamListener)
+  NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, nsIRequestObserver)
+  NS_INTERFACE_MAP_ENTRY(nsIRequestObserver)
+  NS_INTERFACE_MAP_ENTRY(nsIStreamListener)
+  NS_INTERFACE_MAP_ENTRY(nsIThreadRetargetableStreamListener)
+NS_INTERFACE_MAP_END_THREADSAFE
+
+nsHtml5StreamListener::nsHtml5StreamListener(nsHtml5StreamParser* aDelegate)
+ : mDelegate(aDelegate)
+{
+}
+
+nsHtml5StreamListener::~nsHtml5StreamListener()
+{
+}
+
+void
+nsHtml5StreamListener::DropDelegate()
+{
+  MOZ_ASSERT(NS_IsMainThread(),
+             "Must not call DropDelegate from non-main threads.");
+  mDelegate = nullptr;
+}
+
+NS_IMETHODIMP
+nsHtml5StreamListener::CheckListenerChain()
+{
+  if (MOZ_UNLIKELY(!mDelegate)) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return mDelegate->CheckListenerChain();
+}
+
+NS_IMETHODIMP
+nsHtml5StreamListener::OnStartRequest(nsIRequest* aRequest,
+                                      nsISupports* aContext)
+{
+  if (MOZ_UNLIKELY(!mDelegate)) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return mDelegate->OnStartRequest(aRequest, aContext);
+}
+
+NS_IMETHODIMP
+nsHtml5StreamListener::OnStopRequest(nsIRequest* aRequest,
+                                     nsISupports* aContext,
+                                     nsresult aStatus)
+{
+  if (MOZ_UNLIKELY(!mDelegate)) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return mDelegate->OnStopRequest(aRequest,
+                                  aContext,
+                                  aStatus);
+}
+
+NS_IMETHODIMP
+nsHtml5StreamListener::OnDataAvailable(nsIRequest* aRequest,
+                                       nsISupports* aContext,
+                                       nsIInputStream* aInStream,
+                                       uint64_t aSourceOffset,
+                                       uint32_t aLength)
+{
+  if (MOZ_UNLIKELY(!mDelegate)) {
+    return NS_ERROR_NOT_AVAILABLE;
+  }
+  return mDelegate->OnDataAvailable(aRequest,
+                                    aContext,
+                                    aInStream,
+                                    aSourceOffset,
+                                    aLength);
+}
+