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// Copyright (c) 2009 The Chromium Authors. All rights reserved.
// 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 shared by more than one child process.
#ifndef CHROME_COMMON_COMMON_PARAM_TRAITS_H_
#define CHROME_COMMON_COMMON_PARAM_TRAITS_H_
#include "base/gfx/native_widget_types.h"
#include "chrome/common/thumbnail_score.h"
#include "chrome/common/transport_dib.h"
#include "ipc/ipc_message_utils.h"
#include "net/url_request/url_request_status.h"
#include "webkit/glue/webcursor.h"
#include "webkit/glue/window_open_disposition.h"
// Forward declarations.
class GURL;
class SkBitmap;
class DictionaryValue;
class ListValue;
namespace gfx {
class Point;
class Rect;
class Size;
} // namespace gfx
namespace webkit_glue {
struct WebApplicationInfo;
} // namespace webkit_glue
namespace IPC {
template <>
struct ParamTraits<SkBitmap> {
typedef SkBitmap param_type;
static void Write(Message* m, const param_type& p);
// Note: This function expects parameter |r| to be of type &SkBitmap since
// r->SetConfig() and r->SetPixels() are called.
static bool Read(const Message* m, void** iter, param_type* r);
static void Log(const param_type& p, std::wstring* l);
};
template <>
struct ParamTraits<GURL> {
typedef GURL param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, void** iter, param_type* p);
static void Log(const param_type& p, std::wstring* l);
};
template <>
struct ParamTraits<gfx::Point> {
typedef gfx::Point param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, void** iter, param_type* r);
static void Log(const param_type& p, std::wstring* l);
};
template <>
struct ParamTraits<gfx::Rect> {
typedef gfx::Rect param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, void** iter, param_type* r);
static void Log(const param_type& p, std::wstring* l);
};
template <>
struct ParamTraits<gfx::Size> {
typedef gfx::Size param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, void** iter, param_type* r);
static void Log(const param_type& p, std::wstring* l);
};
template <>
struct ParamTraits<gfx::NativeWindow> {
typedef gfx::NativeWindow param_type;
static void Write(Message* m, const param_type& p) {
m->WriteIntPtr(reinterpret_cast<intptr_t>(p));
}
static bool Read(const Message* m, void** iter, param_type* r) {
DCHECK_EQ(sizeof(param_type), sizeof(intptr_t));
return m->ReadIntPtr(iter, reinterpret_cast<intptr_t*>(r));
}
static void Log(const param_type& p, std::wstring* l) {
l->append(StringPrintf(L"0x%X", p));
}
};
template <>
struct ParamTraits<WindowOpenDisposition> {
typedef WindowOpenDisposition param_type;
static void Write(Message* m, const param_type& p) {
m->WriteInt(p);
}
static bool Read(const Message* m, void** iter, param_type* r) {
int temp;
bool res = m->ReadInt(iter, &temp);
*r = static_cast<WindowOpenDisposition>(temp);
return res;
}
static void Log(const param_type& p, std::wstring* l) {
l->append(StringPrintf(L"%d", p));
}
};
template <>
struct ParamTraits<WebCursor> {
typedef WebCursor param_type;
static void Write(Message* m, const param_type& p) {
p.Serialize(m);
}
static bool Read(const Message* m, void** iter, param_type* r) {
return r->Deserialize(m, iter);
}
static void Log(const param_type& p, std::wstring* l) {
l->append(L"<WebCursor>");
}
};
template <>
struct ParamTraits<webkit_glue::WebApplicationInfo> {
typedef webkit_glue::WebApplicationInfo param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, void** iter, param_type* r);
static void Log(const param_type& p, std::wstring* l);
};
#if defined(OS_WIN)
template<>
struct ParamTraits<TransportDIB::Id> {
typedef TransportDIB::Id param_type;
static void Write(Message* m, const param_type& p) {
WriteParam(m, p.handle);
WriteParam(m, p.sequence_num);
}
static bool Read(const Message* m, void** iter, param_type* r) {
return (ReadParam(m, iter, &r->handle) &&
ReadParam(m, iter, &r->sequence_num));
}
static void Log(const param_type& p, std::wstring* l) {
l->append(L"TransportDIB(");
LogParam(p.handle, l);
l->append(L", ");
LogParam(p.sequence_num, l);
l->append(L")");
}
};
#endif
// Traits for URLRequestStatus
template <>
struct ParamTraits<URLRequestStatus> {
typedef URLRequestStatus param_type;
static void Write(Message* m, const param_type& p) {
WriteParam(m, static_cast<int>(p.status()));
WriteParam(m, p.os_error());
}
static bool Read(const Message* m, void** iter, param_type* r) {
int status, os_error;
if (!ReadParam(m, iter, &status) ||
!ReadParam(m, iter, &os_error))
return false;
r->set_status(static_cast<URLRequestStatus::Status>(status));
r->set_os_error(os_error);
return true;
}
static void Log(const param_type& p, std::wstring* l) {
std::wstring status;
switch (p.status()) {
case URLRequestStatus::SUCCESS:
status = L"SUCCESS";
break;
case URLRequestStatus::IO_PENDING:
status = L"IO_PENDING ";
break;
case URLRequestStatus::HANDLED_EXTERNALLY:
status = L"HANDLED_EXTERNALLY";
break;
case URLRequestStatus::CANCELED:
status = L"CANCELED";
break;
case URLRequestStatus::FAILED:
status = L"FAILED";
break;
default:
status = L"UNKNOWN";
break;
}
if (p.status() == URLRequestStatus::FAILED)
l->append(L"(");
LogParam(status, l);
if (p.status() == URLRequestStatus::FAILED) {
l->append(L", ");
LogParam(p.os_error(), l);
l->append(L")");
}
}
};
template<>
struct ParamTraits<ThumbnailScore> {
typedef ThumbnailScore param_type;
static void Write(Message* m, const param_type& p) {
IPC::ParamTraits<double>::Write(m, p.boring_score);
IPC::ParamTraits<bool>::Write(m, p.good_clipping);
IPC::ParamTraits<bool>::Write(m, p.at_top);
IPC::ParamTraits<base::Time>::Write(m, p.time_at_snapshot);
}
static bool Read(const Message* m, void** iter, param_type* r) {
double boring_score;
bool good_clipping, at_top;
base::Time time_at_snapshot;
if (!IPC::ParamTraits<double>::Read(m, iter, &boring_score) ||
!IPC::ParamTraits<bool>::Read(m, iter, &good_clipping) ||
!IPC::ParamTraits<bool>::Read(m, iter, &at_top) ||
!IPC::ParamTraits<base::Time>::Read(m, iter, &time_at_snapshot))
return false;
r->boring_score = boring_score;
r->good_clipping = good_clipping;
r->at_top = at_top;
r->time_at_snapshot = time_at_snapshot;
return true;
}
static void Log(const param_type& p, std::wstring* l) {
l->append(StringPrintf(L"(%f, %d, %d)",
p.boring_score, p.good_clipping, p.at_top));
}
};
} // namespace IPC
#endif // CHROME_COMMON_COMMON_PARAM_TRAITS_H_
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