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content / public / common / common_param_traits.h [blame]
// Copyright 2012 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
// This file is used to define IPC::ParamTraits<> specializations for a number
// of types so that they can be serialized over IPC. IPC::ParamTraits<>
// specializations for basic types (like int and std::string) and types in the
// 'base' project can be found in ipc/ipc_message_utils.h. This file contains
// specializations for types that are used by the content code, and which need
// manual serialization code. This is usually because they're not structs with
// public members, or because the same type is being used in multiple
// *_messages.h headers.
#ifndef CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_
#define CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_
#include <stdint.h>
#include <string>
#include "base/notreached.h"
#include "build/build_config.h"
#include "content/common/content_export.h"
#include "content/public/common/common_param_traits_macros.h"
#include "ipc/ipc_message_utils.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/surface/transport_dib.h"
#include "url/ipc/url_param_traits.h"
#if BUILDFLAG(IS_WIN)
#include "base/win/win_util.h"
#endif
namespace blink {
class PageState;
}
namespace IPC {
template <>
struct CONTENT_EXPORT ParamTraits<blink::PageState> {
typedef blink::PageState param_type;
static void Write(base::Pickle* m, const param_type& p);
static bool Read(const base::Pickle* m,
base::PickleIterator* iter,
param_type* p);
static void Log(const param_type& p, std::string* l);
};
template <>
struct ParamTraits<gfx::NativeWindow> {
typedef gfx::NativeWindow param_type;
static void Write(base::Pickle* m, const param_type& p) {
#if BUILDFLAG(IS_WIN)
m->WriteUInt32(base::win::HandleToUint32(p));
#else
m->WriteData(reinterpret_cast<const char*>(&p), sizeof(p));
#endif
}
static bool Read(const base::Pickle* m,
base::PickleIterator* iter,
param_type* r) {
#if BUILDFLAG(IS_WIN)
return iter->ReadUInt32(reinterpret_cast<uint32_t*>(r));
#else
const char *data;
size_t data_size = 0;
bool result = iter->ReadData(&data, &data_size);
if (result && data_size == sizeof(gfx::NativeWindow)) {
memcpy(r, data, sizeof(gfx::NativeWindow));
} else {
result = false;
NOTREACHED_IN_MIGRATION();
}
return result;
#endif
}
static void Log(const param_type& p, std::string* l) {
l->append("<gfx::NativeWindow>");
}
};
} // namespace IPC
#endif // CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_