layout/generic/LayoutMessageUtils.h

   1 /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
   2 /* vim: set ts=8 sts=2 et sw=2 tw=80: */
   3 /* This Source Code Form is subject to the terms of the Mozilla Public
   4  * License, v. 2.0. If a copy of the MPL was not distributed with this
   5  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
   6
   7 #ifndef LAYOUT_GENERIC_LAYOUTMESSAGEUTILS_H_
   8 #define LAYOUT_GENERIC_LAYOUTMESSAGEUTILS_H_
   9
  10 #include "ipc/EnumSerializer.h"
  11 #include "ipc/IPCMessageUtils.h"
  12 #include "nsIFrame.h"
  13 #include "mozilla/AspectRatio.h"
  14 #include "mozilla/webrender/WebRenderTypes.h"
  15
  16 namespace IPC {
  17
  18 template <>
  19 struct ParamTraits<mozilla::IntrinsicSize> {
  20   using paramType = mozilla::IntrinsicSize;
  21
  22   static void Write(MessageWriter* aWriter, const paramType& aParam) {
  23     WriteParam(aWriter, aParam.width);
  24     WriteParam(aWriter, aParam.height);
  25   }
  26
  27   static bool Read(MessageReader* aReader, paramType* aResult) {
  28     return ReadParam(aReader, &aResult->width) &&
  29            ReadParam(aReader, &aResult->height);
  30   }
  31 };
  32
  33 template <>
  34 struct ParamTraits<mozilla::AspectRatio> {
  35   using paramType = mozilla::AspectRatio;
  36
  37   static void Write(MessageWriter* aWriter, const paramType& aParam) {
  38     WriteParam(aWriter, aParam.mRatio);
  39   }
  40
  41   static bool Read(MessageReader* aReader, paramType* aResult) {
  42     return ReadParam(aReader, &aResult->mRatio);
  43   }
  44 };
  45
  46 template <>
  47 struct ParamTraits<mozilla::StyleImageRendering>
  48     : public ContiguousEnumSerializerInclusive<
  49           mozilla::StyleImageRendering, mozilla::StyleImageRendering::Auto,
  50           mozilla::StyleImageRendering::Optimizequality> {};
  51
  52 }  // namespace IPC
  53
  54 #endif  // LAYOUT_GENERIC_LAYOUTMESSAGEUTILS_H_