content/common/content_param_traits.h

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 // This file is used to define IPC::ParamTraits<> specializations for a number
   6 // of types so that they can be serialized over IPC.  IPC::ParamTraits<>
   7 // specializations for basic types (like int and std::string) and types in the
   8 // 'base' project can be found in ipc/ipc_message_utils.h.  This file contains
   9 // specializations for types that are used by the content code, and which need
  10 // manual serialization code.  This is usually because they're not structs with
  11 // public members, or because the same type is being used in multiple
  12 // *_messages.h headers.
  13
  14 #ifndef CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
  15 #define CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
  16
  17 #include "content/common/content_param_traits_macros.h"
  18 #include "content/common/cursors/webcursor.h"
  19 #include "third_party/WebKit/public/web/WebInputEvent.h"
  20
  21 namespace net {
  22 class IPEndPoint;
  23 }
  24
  25 namespace IPC {
  26
  27 template <>
  28 struct ParamTraits<content::WebCursor> {
  29   typedef content::WebCursor param_type;
  30   static void Write(Message* m, const param_type& p) {
  31     p.Serialize(m);
  32   }
  33   static bool Read(const Message* m,
  34                    base::PickleIterator* iter,
  35                    param_type* r)  {
  36     return r->Deserialize(iter);
  37   }
  38   static void Log(const param_type& p, std::string* l) {
  39     l->append("<WebCursor>");
  40   }
  41 };
  42
  43 typedef const blink::WebInputEvent* WebInputEventPointer;
  44 template <>
  45 struct ParamTraits<WebInputEventPointer> {
  46   typedef WebInputEventPointer param_type;
  47   static void Write(Message* m, const param_type& p);
  48   // Note: upon read, the event has the lifetime of the message.
  49   static bool Read(const Message* m, base::PickleIterator* iter, param_type* r);
  50   static void Log(const param_type& p, std::string* l);
  51 };
  52
  53 }  // namespace IPC
  54
  55 #endif  // CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_