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// Copyright (c) 2010 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 contains ParamTraits templates to support serialization of WebKit
// data types over IPC.
//
// NOTE: IT IS IMPORTANT THAT ONLY POD (plain old data) TYPES ARE SERIALIZED.
//
// There are several reasons for this restrictions:
//
// o We don't want inclusion of this file to imply linking to WebKit code.
//
// o Many WebKit structures are not thread-safe. WebString, for example,
// contains a reference counted buffer, which does not use thread-safe
// reference counting. If we allowed serializing WebString, then we may
// run the risk of introducing subtle thread-safety bugs if people passed a
// WebString across threads via PostTask(NewRunnableMethod(...)).
//
// o The WebKit API has redundant types for strings, and we should avoid
// using those beyond code that interfaces with the WebKit API.
#ifndef CHROME_COMMON_WEBKIT_PARAM_TRAITS_H_
#define CHROME_COMMON_WEBKIT_PARAM_TRAITS_H_
#pragma once
#include "ipc/ipc_message_utils.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebCache.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebConsoleMessage.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebContextMenuData.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebFileError.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupType.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebTextCheckingResult.h"
#include "third_party/WebKit/Source/WebKit/chromium/public/WebTextInputType.h"
namespace WebKit {
struct WebCompositionUnderline;
struct WebRect;
struct WebScreenInfo;
}
namespace IPC {
template <>
struct ParamTraits<WebKit::WebRect> {
typedef WebKit::WebRect 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::string* l);
};
template <>
struct ParamTraits<WebKit::WebScreenInfo> {
typedef WebKit::WebScreenInfo 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::string* l);
};
template <>
struct SimilarTypeTraits<WebKit::WebConsoleMessage::Level> {
typedef int Type;
};
template <>
struct SimilarTypeTraits<WebKit::WebPopupType> {
typedef int Type;
};
template <>
struct ParamTraits<WebKit::WebCache::UsageStats> {
typedef WebKit::WebCache::UsageStats param_type;
static void Write(Message* m, const param_type& p) {
WriteParam(m, p.minDeadCapacity);
WriteParam(m, p.maxDeadCapacity);
WriteParam(m, p.capacity);
WriteParam(m, p.liveSize);
WriteParam(m, p.deadSize);
}
static bool Read(const Message* m, void** iter, param_type* r) {
return
ReadParam(m, iter, &r->minDeadCapacity) &&
ReadParam(m, iter, &r->maxDeadCapacity) &&
ReadParam(m, iter, &r->capacity) &&
ReadParam(m, iter, &r->liveSize) &&
ReadParam(m, iter, &r->deadSize);
}
static void Log(const param_type& p, std::string* l) {
l->append("<WebCache::UsageStats>");
}
};
template <>
struct ParamTraits<WebKit::WebCache::ResourceTypeStat> {
typedef WebKit::WebCache::ResourceTypeStat param_type;
static void Write(Message* m, const param_type& p) {
WriteParam(m, p.count);
WriteParam(m, p.size);
WriteParam(m, p.liveSize);
WriteParam(m, p.decodedSize);
}
static bool Read(const Message* m, void** iter, param_type* r) {
bool result =
ReadParam(m, iter, &r->count) &&
ReadParam(m, iter, &r->size) &&
ReadParam(m, iter, &r->liveSize) &&
ReadParam(m, iter, &r->decodedSize);
return result;
}
static void Log(const param_type& p, std::string* l);
};
template <>
struct ParamTraits<WebKit::WebCache::ResourceTypeStats> {
typedef WebKit::WebCache::ResourceTypeStats param_type;
static void Write(Message* m, const param_type& p) {
WriteParam(m, p.images);
WriteParam(m, p.cssStyleSheets);
WriteParam(m, p.scripts);
WriteParam(m, p.xslStyleSheets);
WriteParam(m, p.fonts);
}
static bool Read(const Message* m, void** iter, param_type* r) {
bool result =
ReadParam(m, iter, &r->images) &&
ReadParam(m, iter, &r->cssStyleSheets) &&
ReadParam(m, iter, &r->scripts) &&
ReadParam(m, iter, &r->xslStyleSheets) &&
ReadParam(m, iter, &r->fonts);
return result;
}
static void Log(const param_type& p, std::string* l) {
l->append("<WebCoreStats>");
LogParam(p.images, l);
LogParam(p.cssStyleSheets, l);
LogParam(p.scripts, l);
LogParam(p.xslStyleSheets, l);
LogParam(p.fonts, l);
l->append("</WebCoreStats>");
}
};
template <>
struct SimilarTypeTraits<WebKit::WebDragOperation> {
typedef int Type;
};
template <>
struct ParamTraits<WebKit::WebCompositionUnderline> {
typedef WebKit::WebCompositionUnderline 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::string* l);
};
template <>
struct ParamTraits<WebKit::WebTextInputType> {
typedef WebKit::WebTextInputType param_type;
static void Write(Message* m, const param_type& p) {
m->WriteInt(p);
}
static bool Read(const Message* m, void** iter, param_type* p) {
int type;
if (!m->ReadInt(iter, &type))
return false;
*p = static_cast<param_type>(type);
return true;
}
static void Log(const param_type& p, std::string* l) {
std::string control;
switch (p) {
case WebKit::WebTextInputTypeNone:
control = "WebKit::WebTextInputTypeNone";
break;
case WebKit::WebTextInputTypeText:
control = "WebKit::WebTextInputTypeText";
break;
case WebKit::WebTextInputTypePassword:
control = "WebKit::WebTextInputTypePassword";
break;
default:
NOTIMPLEMENTED();
control = "UNKNOWN";
break;
}
LogParam(control, l);
}
};
template <>
struct SimilarTypeTraits<WebKit::WebFileError> {
typedef int Type;
};
template <>
struct ParamTraits<WebKit::WebTextCheckingResult> {
typedef WebKit::WebTextCheckingResult 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::string* l);
};
} // namespace IPC
#endif // CHROME_COMMON_WEBKIT_PARAM_TRAITS_H_
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