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_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_ 15 #define CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_ 16 17 #include <string> 18 19 #include "base/memory/ref_counted.h" 20 #include "content/common/content_export.h" 21 #include "content/public/common/common_param_traits_macros.h" 22 #include "ipc/ipc_message_utils.h" 23 #include "ui/gfx/native_widget_types.h" 24 #include "ui/surface/transport_dib.h" 25 #include "url/gurl.h" 26 #include "url/origin.h" 27 28 class SkBitmap; 29 30 namespace content { 31 class PageState; 32 } 33 34 namespace gfx { 35 class Point; 36 class Rect; 37 class RectF; 38 class Size; 39 class Vector2d; 40 } // namespace gfx 41 42 namespace net { 43 class HostPortPair; 44 class IPEndPoint; 45 } 46 47 namespace IPC { 48 49 template <> 50 struct CONTENT_EXPORT ParamTraits<GURL> { 51 typedef GURL param_type; 52 static void Write(Message* m, const param_type& p); 53 static bool Read(const Message* m, PickleIterator* iter, param_type* p); 54 static void Log(const param_type& p, std::string* l); 55 }; 56 57 template <> 58 struct CONTENT_EXPORT ParamTraits<url::Origin> { 59 typedef url::Origin param_type; 60 static void Write(Message* m, const param_type& p); 61 static bool Read(const Message* m, PickleIterator* iter, param_type* p); 62 static void Log(const param_type& p, std::string* l); 63 }; 64 65 template<> 66 struct CONTENT_EXPORT ParamTraits<net::HostPortPair> { 67 typedef net::HostPortPair param_type; 68 static void Write(Message* m, const param_type& p); 69 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 70 static void Log(const param_type& p, std::string* l); 71 }; 72 73 template <> 74 struct CONTENT_EXPORT ParamTraits<net::IPEndPoint> { 75 typedef net::IPEndPoint param_type; 76 static void Write(Message* m, const param_type& p); 77 static bool Read(const Message* m, PickleIterator* iter, param_type* p); 78 static void Log(const param_type& p, std::string* l); 79 }; 80 81 template <> 82 struct CONTENT_EXPORT ParamTraits<content::PageState> { 83 typedef content::PageState param_type; 84 static void Write(Message* m, const param_type& p); 85 static bool Read(const Message* m, PickleIterator* iter, param_type* p); 86 static void Log(const param_type& p, std::string* l); 87 }; 88 89 template <> 90 struct CONTENT_EXPORT ParamTraits<gfx::Point> { 91 typedef gfx::Point param_type; 92 static void Write(Message* m, const param_type& p); 93 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 94 static void Log(const param_type& p, std::string* l); 95 }; 96 97 template <> 98 struct CONTENT_EXPORT ParamTraits<gfx::PointF> { 99 typedef gfx::PointF param_type; 100 static void Write(Message* m, const param_type& p); 101 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 102 static void Log(const param_type& p, std::string* l); 103 }; 104 105 template <> 106 struct CONTENT_EXPORT ParamTraits<gfx::Size> { 107 typedef gfx::Size param_type; 108 static void Write(Message* m, const param_type& p); 109 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 110 static void Log(const param_type& p, std::string* l); 111 }; 112 113 template <> 114 struct CONTENT_EXPORT ParamTraits<gfx::SizeF> { 115 typedef gfx::SizeF param_type; 116 static void Write(Message* m, const param_type& p); 117 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 118 static void Log(const param_type& p, std::string* l); 119 }; 120 121 template <> 122 struct CONTENT_EXPORT ParamTraits<gfx::Vector2d> { 123 typedef gfx::Vector2d param_type; 124 static void Write(Message* m, const param_type& p); 125 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 126 static void Log(const param_type& p, std::string* l); 127 }; 128 129 template <> 130 struct CONTENT_EXPORT ParamTraits<gfx::Vector2dF> { 131 typedef gfx::Vector2dF param_type; 132 static void Write(Message* m, const param_type& p); 133 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 134 static void Log(const param_type& p, std::string* l); 135 }; 136 137 template <> 138 struct CONTENT_EXPORT ParamTraits<gfx::Rect> { 139 typedef gfx::Rect param_type; 140 static void Write(Message* m, const param_type& p); 141 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 142 static void Log(const param_type& p, std::string* l); 143 }; 144 145 template <> 146 struct CONTENT_EXPORT ParamTraits<gfx::RectF> { 147 typedef gfx::RectF param_type; 148 static void Write(Message* m, const param_type& p); 149 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 150 static void Log(const param_type& p, std::string* l); 151 }; 152 153 template <> 154 struct ParamTraits<gfx::NativeWindow> { 155 typedef gfx::NativeWindow param_type; 156 static void Write(Message* m, const param_type& p) { 157 #if defined(OS_WIN) 158 // HWNDs are always 32 bits on Windows, even on 64 bit systems. 159 m->WriteUInt32(reinterpret_cast<uint32>(p)); 160 #else 161 m->WriteData(reinterpret_cast<const char*>(&p), sizeof(p)); 162 #endif 163 } 164 static bool Read(const Message* m, PickleIterator* iter, param_type* r) { 165 #if defined(OS_WIN) 166 return m->ReadUInt32(iter, reinterpret_cast<uint32*>(r)); 167 #else 168 const char *data; 169 int data_size = 0; 170 bool result = m->ReadData(iter, &data, &data_size); 171 if (result && data_size == sizeof(gfx::NativeWindow)) { 172 memcpy(r, data, sizeof(gfx::NativeWindow)); 173 } else { 174 result = false; 175 NOTREACHED(); 176 } 177 return result; 178 #endif 179 } 180 static void Log(const param_type& p, std::string* l) { 181 l->append("<gfx::NativeWindow>"); 182 } 183 }; 184 185 #if defined(OS_WIN) 186 template<> 187 struct ParamTraits<TransportDIB::Id> { 188 typedef TransportDIB::Id param_type; 189 static void Write(Message* m, const param_type& p) { 190 WriteParam(m, p.handle); 191 WriteParam(m, p.sequence_num); 192 } 193 static bool Read(const Message* m, PickleIterator* iter, param_type* r) { 194 return (ReadParam(m, iter, &r->handle) && 195 ReadParam(m, iter, &r->sequence_num)); 196 } 197 static void Log(const param_type& p, std::string* l) { 198 l->append("TransportDIB("); 199 LogParam(p.handle, l); 200 l->append(", "); 201 LogParam(p.sequence_num, l); 202 l->append(")"); 203 } 204 }; 205 #endif 206 207 template <> 208 struct CONTENT_EXPORT ParamTraits<SkBitmap> { 209 typedef SkBitmap param_type; 210 static void Write(Message* m, const param_type& p); 211 212 // Note: This function expects parameter |r| to be of type &SkBitmap since 213 // r->SetConfig() and r->SetPixels() are called. 214 static bool Read(const Message* m, PickleIterator* iter, param_type* r); 215 216 static void Log(const param_type& p, std::string* l); 217 }; 218 219 } // namespace IPC 220 221 #endif // CONTENT_PUBLIC_COMMON_COMMON_PARAM_TRAITS_H_ 222
