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      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 gfx {
     22 class Range;
     23 }
     24 
     25 namespace net {
     26 class IPEndPoint;
     27 }
     28 
     29 namespace IPC {
     30 
     31 template <>
     32 struct ParamTraits<gfx::Range> {
     33   typedef gfx::Range param_type;
     34   static void Write(Message* m, const param_type& p);
     35   static bool Read(const Message* m, PickleIterator* iter, param_type* r);
     36   static void Log(const param_type& p, std::string* l);
     37 };
     38 
     39 template <>
     40 struct ParamTraits<content::WebCursor> {
     41   typedef content::WebCursor param_type;
     42   static void Write(Message* m, const param_type& p) {
     43     p.Serialize(m);
     44   }
     45   static bool Read(const Message* m, PickleIterator* iter, param_type* r)  {
     46     return r->Deserialize(iter);
     47   }
     48   static void Log(const param_type& p, std::string* l) {
     49     l->append("<WebCursor>");
     50   }
     51 };
     52 
     53 typedef const blink::WebInputEvent* WebInputEventPointer;
     54 template <>
     55 struct ParamTraits<WebInputEventPointer> {
     56   typedef WebInputEventPointer param_type;
     57   static void Write(Message* m, const param_type& p);
     58   // Note: upon read, the event has the lifetime of the message.
     59   static bool Read(const Message* m, PickleIterator* iter, param_type* r);
     60   static void Log(const param_type& p, std::string* l);
     61 };
     62 
     63 }  // namespace IPC
     64 
     65 #endif  // CONTENT_COMMON_CONTENT_PARAM_TRAITS_H_
     66