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// Copyright (c) 2012 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 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_COMMON_CONTENT_PARAM_TRAITS_H_
#define CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
#include "content/common/content_param_traits_macros.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebInputEvent.h"
#include "webkit/glue/npruntime_util.h"
#include "webkit/glue/webcursor.h"
namespace net {
class IPEndPoint;
}
namespace ui {
class Range;
}
namespace content {
// Define the NPVariant_Param struct and its enum here since it needs manual
// serialization code.
enum NPVariant_ParamEnum {
NPVARIANT_PARAM_VOID,
NPVARIANT_PARAM_NULL,
NPVARIANT_PARAM_BOOL,
NPVARIANT_PARAM_INT,
NPVARIANT_PARAM_DOUBLE,
NPVARIANT_PARAM_STRING,
// Used when when the NPObject is running in the caller's process, so we
// create an NPObjectProxy in the other process.
NPVARIANT_PARAM_SENDER_OBJECT_ROUTING_ID,
// Used when the NPObject we're sending is running in the callee's process
// (i.e. we have an NPObjectProxy for it). In that case we want the callee
// to just use the raw pointer.
NPVARIANT_PARAM_RECEIVER_OBJECT_ROUTING_ID,
};
struct NPVariant_Param {
NPVariant_Param();
~NPVariant_Param();
NPVariant_ParamEnum type;
bool bool_value;
int int_value;
double double_value;
std::string string_value;
int npobject_routing_id;
};
struct NPIdentifier_Param {
NPIdentifier_Param();
~NPIdentifier_Param();
NPIdentifier identifier;
};
} // namespace content
namespace IPC {
template <>
struct ParamTraits<net::IPEndPoint> {
typedef net::IPEndPoint param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, PickleIterator* iter, param_type* p);
static void Log(const param_type& p, std::string* l);
};
template <>
struct ParamTraits<content::NPVariant_Param> {
typedef content::NPVariant_Param param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, PickleIterator* iter, param_type* r);
static void Log(const param_type& p, std::string* l);
};
template <>
struct ParamTraits<content::NPIdentifier_Param> {
typedef content::NPIdentifier_Param param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, PickleIterator* iter, param_type* r);
static void Log(const param_type& p, std::string* l);
};
template <>
struct ParamTraits<ui::Range> {
typedef ui::Range param_type;
static void Write(Message* m, const param_type& p);
static bool Read(const Message* m, PickleIterator* iter, param_type* r);
static void Log(const param_type& p, std::string* l);
};
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, PickleIterator* iter, param_type* r) {
return r->Deserialize(iter);
}
static void Log(const param_type& p, std::string* l) {
l->append("<WebCursor>");
}
};
typedef const WebKit::WebInputEvent* WebInputEventPointer;
template <>
struct ParamTraits<WebInputEventPointer> {
typedef WebInputEventPointer param_type;
static void Write(Message* m, const param_type& p) {
m->WriteData(reinterpret_cast<const char*>(p), p->size);
}
// Note: upon read, the event has the lifetime of the message.
static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
const char* data;
int data_length;
if (!m->ReadData(iter, &data, &data_length)) {
NOTREACHED();
return false;
}
if (data_length < static_cast<int>(sizeof(WebKit::WebInputEvent))) {
NOTREACHED();
return false;
}
param_type event = reinterpret_cast<param_type>(data);
// Check that the data size matches that of the event (we check the latter
// in the delegate).
if (data_length != static_cast<int>(event->size)) {
NOTREACHED();
return false;
}
*r = event;
return true;
}
static void Log(const param_type& p, std::string* l) {
l->append("(");
LogParam(p->size, l);
l->append(", ");
LogParam(p->type, l);
l->append(", ");
LogParam(p->timeStampSeconds, l);
l->append(")");
}
};
} // namespace IPC
#endif // CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
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