gecko-dev/layout/generic/LayoutMessageUtils.h

49 строки
1.4 KiB
C++

/* -*- 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 LAYOUT_GENERIC_LAYOUTMESSAGEUTILS_H_
#define LAYOUT_GENERIC_LAYOUTMESSAGEUTILS_H_
#include "ipc/IPCMessageUtils.h"
#include "nsIFrame.h"
#include "mozilla/AspectRatio.h"
namespace IPC {
template <>
struct ParamTraits<mozilla::IntrinsicSize> {
using paramType = mozilla::IntrinsicSize;
static void Write(Message* aMsg, const paramType& aParam) {
WriteParam(aMsg, aParam.width);
WriteParam(aMsg, aParam.height);
}
static bool Read(const Message* aMsg, PickleIterator* aIter,
paramType* aResult) {
return ReadParam(aMsg, aIter, &aResult->width) &&
ReadParam(aMsg, aIter, &aResult->height);
}
};
template <>
struct ParamTraits<mozilla::AspectRatio> {
using paramType = mozilla::AspectRatio;
static void Write(Message* aMsg, const paramType& aParam) {
WriteParam(aMsg, aParam.mRatio);
}
static bool Read(const Message* aMsg, PickleIterator* aIter,
paramType* aResult) {
return ReadParam(aMsg, aIter, &aResult->mRatio);
}
};
} // namespace IPC
#endif // LAYOUT_GENERIC_LAYOUTMESSAGEUTILS_H_