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/* -*- 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 mozilla_dom_permission_message_utils_h__
#define mozilla_dom_permission_message_utils_h__
#include "mozilla/ipc/IPDLParamTraits.h"
#include "ipc/IPCMessageUtils.h"
#include "nsCOMPtr.h"
#include "nsIPrincipal.h"
namespace IPC {
/**
* Legacy IPC::Principal type. Use nsIPrincipal directly in new IPDL code.
*/
class Principal {
friend struct mozilla::ipc::IPDLParamTraits<Principal>;
public:
Principal() = default;
explicit Principal(nsIPrincipal* aPrincipal) : mPrincipal(aPrincipal) {}
operator nsIPrincipal*() const { return mPrincipal.get(); }
Principal& operator=(const Principal& aOther) = delete;
private:
RefPtr<nsIPrincipal> mPrincipal;
};
} // namespace IPC
namespace mozilla {
namespace ipc {
template <>
struct IPDLParamTraits<nsIPrincipal*> {
static void Write(IPC::Message* aMsg, IProtocol* aActor,
nsIPrincipal* aParam);
static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
IProtocol* aActor, RefPtr<nsIPrincipal>* aResult);
// Overload to support deserializing nsCOMPtr<nsIPrincipal> directly.
static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
IProtocol* aActor, nsCOMPtr<nsIPrincipal>* aResult) {
RefPtr<nsIPrincipal> result;
if (!Read(aMsg, aIter, aActor, &result)) {
return false;
}
*aResult = std::move(result);
return true;
}
};
template <>
struct IPDLParamTraits<IPC::Principal> {
typedef IPC::Principal paramType;
static void Write(IPC::Message* aMsg, IProtocol* aActor,
const paramType& aParam) {
WriteIPDLParam(aMsg, aActor, aParam.mPrincipal);
}
static bool Read(const IPC::Message* aMsg, PickleIterator* aIter,
IProtocol* aActor, paramType* aResult) {
return ReadIPDLParam(aMsg, aIter, aActor, &aResult->mPrincipal);
}
};
} // namespace ipc
} // namespace mozilla
#endif // mozilla_dom_permission_message_utils_h__
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