summaryrefslogtreecommitdiffstats
path: root/content/public/common/common_param_traits.h
blob: 657ef646c71986ab629dffe8f763700df8017a6c (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
// 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_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_
#define CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_

#include <string>

#include "base/memory/ref_counted.h"
#include "content/common/content_export.h"
#include "content/public/common/common_param_traits_macros.h"
#include "ipc/ipc_message_utils.h"
#include "ui/gfx/native_widget_types.h"
#include "ui/surface/transport_dib.h"
#include "url/gurl.h"
#include "url/origin.h"

namespace content {
class PageState;
}

namespace net {
class HostPortPair;
class IPEndPoint;
}

namespace IPC {

template <>
struct CONTENT_EXPORT ParamTraits<GURL> {
  typedef GURL 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 CONTENT_EXPORT ParamTraits<url::Origin> {
  typedef url::Origin 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 CONTENT_EXPORT ParamTraits<net::HostPortPair> {
  typedef net::HostPortPair 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 CONTENT_EXPORT 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 CONTENT_EXPORT ParamTraits<content::PageState> {
  typedef content::PageState 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<gfx::NativeWindow> {
  typedef gfx::NativeWindow param_type;
  static void Write(Message* m, const param_type& p) {
#if defined(OS_WIN)
    // HWNDs are always 32 bits on Windows, even on 64 bit systems.
    m->WriteUInt32(reinterpret_cast<uint32>(p));
#else
    m->WriteData(reinterpret_cast<const char*>(&p), sizeof(p));
#endif
  }
  static bool Read(const Message* m, PickleIterator* iter, param_type* r) {
#if defined(OS_WIN)
    return m->ReadUInt32(iter, reinterpret_cast<uint32*>(r));
#else
    const char *data;
    int data_size = 0;
    bool result = m->ReadData(iter, &data, &data_size);
    if (result && data_size == sizeof(gfx::NativeWindow)) {
      memcpy(r, data, sizeof(gfx::NativeWindow));
    } else {
      result = false;
      NOTREACHED();
    }
    return result;
#endif
  }
  static void Log(const param_type& p, std::string* l) {
    l->append("<gfx::NativeWindow>");
  }
};

#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, PickleIterator* iter, param_type* r) {
    return (ReadParam(m, iter, &r->handle) &&
            ReadParam(m, iter, &r->sequence_num));
  }
  static void Log(const param_type& p, std::string* l) {
    l->append("TransportDIB(");
    LogParam(p.handle, l);
    l->append(", ");
    LogParam(p.sequence_num, l);
    l->append(")");
  }
};
#endif

}  // namespace IPC

#endif  // CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_