1 files changed, 102 insertions, 0 deletions
diff --git a/dom/media/mediasession/MediaSessionIPCUtils.h b/dom/media/mediasession/MediaSessionIPCUtils.h
new file mode 100644
index 0000000000..c44f4b4553
--- /dev/null
+++ b/dom/media/mediasession/MediaSessionIPCUtils.h
@@ -0,0 +1,102 @@
+/* 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 DOM_MEDIA_MEDIASESSION_MEDIASESSIONIPCUTILS_H_
+#define DOM_MEDIA_MEDIASESSION_MEDIASESSIONIPCUTILS_H_
+
+#include "ipc/EnumSerializer.h"
+#include "MediaMetadata.h"
+#include "mozilla/dom/MediaSession.h"
+#include "mozilla/dom/MediaSessionBinding.h"
+#include "mozilla/Maybe.h"
+
+namespace mozilla {
+namespace dom {
+
+typedef Maybe<MediaMetadataBase> MaybeMediaMetadataBase;
+
+}  // namespace dom
+}  // namespace mozilla
+
+namespace IPC {
+
+template <>
+struct ParamTraits<mozilla::dom::MediaImage> {
+  typedef mozilla::dom::MediaImage paramType;
+
+  static void Write(MessageWriter* aWriter, const paramType& aParam) {
+    WriteParam(aWriter, aParam.mSizes);
+    WriteParam(aWriter, aParam.mSrc);
+    WriteParam(aWriter, aParam.mType);
+  }
+
+  static bool Read(MessageReader* aReader, paramType* aResult) {
+    if (!ReadParam(aReader, &(aResult->mSizes)) ||
+        !ReadParam(aReader, &(aResult->mSrc)) ||
+        !ReadParam(aReader, &(aResult->mType))) {
+      return false;
+    }
+    return true;
+  }
+};
+
+template <>
+struct ParamTraits<mozilla::dom::MediaMetadataBase> {
+  typedef mozilla::dom::MediaMetadataBase paramType;
+
+  static void Write(MessageWriter* aWriter, const paramType& aParam) {
+    WriteParam(aWriter, aParam.mTitle);
+    WriteParam(aWriter, aParam.mArtist);
+    WriteParam(aWriter, aParam.mAlbum);
+    WriteParam(aWriter, aParam.mArtwork);
+  }
+
+  static bool Read(MessageReader* aReader, paramType* aResult) {
+    if (!ReadParam(aReader, &(aResult->mTitle)) ||
+        !ReadParam(aReader, &(aResult->mArtist)) ||
+        !ReadParam(aReader, &(aResult->mAlbum)) ||
+        !ReadParam(aReader, &(aResult->mArtwork))) {
+      return false;
+    }
+    return true;
+  }
+};
+
+template <>
+struct ParamTraits<mozilla::dom::PositionState> {
+  typedef mozilla::dom::PositionState paramType;
+
+  static void Write(MessageWriter* aWriter, const paramType& aParam) {
+    WriteParam(aWriter, aParam.mDuration);
+    WriteParam(aWriter, aParam.mPlaybackRate);
+    WriteParam(aWriter, aParam.mLastReportedPlaybackPosition);
+  }
+
+  static bool Read(MessageReader* aReader, paramType* aResult) {
+    if (!ReadParam(aReader, &(aResult->mDuration)) ||
+        !ReadParam(aReader, &(aResult->mPlaybackRate)) ||
+        !ReadParam(aReader, &(aResult->mLastReportedPlaybackPosition))) {
+      return false;
+    }
+    return true;
+  }
+};
+
+template <>
+struct ParamTraits<mozilla::dom::MediaSessionPlaybackState>
+    : public ContiguousEnumSerializer<
+          mozilla::dom::MediaSessionPlaybackState,
+          mozilla::dom::MediaSessionPlaybackState::None,
+          mozilla::dom::MediaSessionPlaybackState::EndGuard_> {};
+
+template <>
+struct ParamTraits<mozilla::dom::MediaSessionAction>
+    : public ContiguousEnumSerializer<
+          mozilla::dom::MediaSessionAction,
+          mozilla::dom::MediaSessionAction::Play,
+          mozilla::dom::MediaSessionAction::EndGuard_> {};
+
+}  // namespace IPC
+
+#endif  // DOM_MEDIA_MEDIASESSION_MEDIASESSIONIPCUTILS_H_