Add m-esr52 at 52.6.0

1 files changed, 64 insertions, 0 deletions

diff --git a/dom/media/WebVTTListener.h b/dom/media/WebVTTListener.h
new file mode 100644
index 000000000..67271664a
--- /dev/null
+++ b/dom/media/WebVTTListener.h
@@ -0,0 +1,64 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* 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_WebVTTLoadListener_h
+#define mozilla_dom_WebVTTLoadListener_h
+
+#include "nsIWebVTTListener.h"
+#include "nsIStreamListener.h"
+#include "nsIChannelEventSink.h"
+#include "nsIInterfaceRequestor.h"
+#include "nsCycleCollectionParticipant.h"
+
+class nsIWebVTTParserWrapper;
+
+namespace mozilla {
+namespace dom {
+
+class HTMLTrackElement;
+
+class WebVTTListener final : public nsIWebVTTListener,
+                             public nsIStreamListener,
+                             public nsIChannelEventSink,
+                             public nsIInterfaceRequestor
+{
+  NS_DECL_CYCLE_COLLECTING_ISUPPORTS
+  NS_DECL_NSIWEBVTTLISTENER
+  NS_DECL_NSIREQUESTOBSERVER
+  NS_DECL_NSISTREAMLISTENER
+  NS_DECL_NSICHANNELEVENTSINK
+  NS_DECL_NSIINTERFACEREQUESTOR
+
+  NS_DECL_CYCLE_COLLECTION_CLASS_AMBIGUOUS(WebVTTListener,
+                                           nsIStreamListener)
+
+public:
+  explicit WebVTTListener(HTMLTrackElement* aElement);
+
+  /**
+   * Loads the WebVTTListener. Must call this in order for the listener to be
+   * ready to parse data that is passed to it.
+   */
+  nsresult LoadResource();
+
+private:
+  ~WebVTTListener();
+
+  // List of error codes returned from the WebVTT parser that we care about.
+  enum ErrorCodes {
+    BadSignature = 0
+  };
+  static nsresult ParseChunk(nsIInputStream* aInStream, void* aClosure,
+                             const char* aFromSegment, uint32_t aToOffset,
+                             uint32_t aCount, uint32_t* aWriteCount);
+
+  RefPtr<HTMLTrackElement> mElement;
+  nsCOMPtr<nsIWebVTTParserWrapper> mParserWrapper;
+};
+
+} // namespace dom
+} // namespace mozilla
+
+#endif // mozilla_dom_WebVTTListener_h