gecko-dev/dom/plugins/NPEventOSX.h

/* -*- Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil; tab-width: 8 -*- */
/* vim: set sw=4 ts=8 et tw=80 ft=cpp : */
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 * Version: MPL 1.1/GPL 2.0/LGPL 2.1
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#ifndef mozilla_dom_plugins_NPEventOSX_h
#define mozilla_dom_plugins_NPEventOSX_h 1


#include "npapi.h"

namespace mozilla {

namespace plugins {

struct NPRemoteEvent {
    NPCocoaEvent event;
};

} // namespace plugins

} // namespace mozilla

namespace IPC {

template <>
struct ParamTraits<mozilla::plugins::NPRemoteEvent>
{
    typedef mozilla::plugins::NPRemoteEvent paramType;

    static void Write(Message* aMsg, const paramType& aParam)
    {
        // Make a non-const copy of aParam so that we can muck with
        // its insides for tranport
        paramType paramCopy;

        paramCopy.event = aParam.event;

        switch (paramCopy.event.type) {
            case NPCocoaEventDrawRect:
                // Don't serialize the context pointer
                paramCopy.event.data.draw.context = NULL;
                break;

            default:
                // ignore any events we don't expect
                return; 
        }

        aMsg->WriteBytes(&paramCopy, sizeof(paramType));
    }

    static bool Read(const Message* aMsg, void** aIter, paramType* aResult)
    {
        const char* bytes = 0;

        if (!aMsg->ReadBytes(aIter, &bytes, sizeof(paramType))) {
            return false;
        }
        memcpy(aResult, bytes, sizeof(paramType));

        return true;
    }

    static void Log(const paramType& aParam, std::wstring* aLog)
    {
        aLog->append(L"(NPCocoaEvent)");
    }
};

} // namespace IPC

#endif // ifndef mozilla_dom_plugins_NPEventOSX_h