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| 1 // Copyright (c) 2006-2008 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 #include "chrome/common/ipc_message_utils.h" | |
| 6 | |
| 7 #include "base/gfx/rect.h" | |
| 8 #include "base/json_writer.h" | |
| 9 #include "base/scoped_ptr.h" | |
| 10 #include "base/values.h" | |
| 11 #include "googleurl/src/gurl.h" | |
| 12 #ifndef EXCLUDE_SKIA_DEPENDENCIES | |
| 13 #include "third_party/skia/include/core/SkBitmap.h" | |
| 14 #endif | |
| 15 #include "webkit/glue/dom_operations.h" | |
| 16 | |
| 17 namespace IPC { | |
| 18 | |
| 19 const int kMaxRecursionDepth = 100; | |
| 20 | |
| 21 #ifndef EXCLUDE_SKIA_DEPENDENCIES | |
| 22 | |
| 23 namespace { | |
| 24 | |
| 25 struct SkBitmap_Data { | |
| 26 // The configuration for the bitmap (bits per pixel, etc). | |
| 27 SkBitmap::Config fConfig; | |
| 28 | |
| 29 // The width of the bitmap in pixels. | |
| 30 uint32 fWidth; | |
| 31 | |
| 32 // The height of the bitmap in pixels. | |
| 33 uint32 fHeight; | |
| 34 | |
| 35 // The number of bytes between subsequent rows of the bitmap. | |
| 36 uint32 fRowBytes; | |
| 37 | |
| 38 void InitSkBitmapDataForTransfer(const SkBitmap& bitmap) { | |
| 39 fConfig = bitmap.config(); | |
| 40 fWidth = bitmap.width(); | |
| 41 fHeight = bitmap.height(); | |
| 42 fRowBytes = bitmap.rowBytes(); | |
| 43 } | |
| 44 | |
| 45 // Returns whether |bitmap| successfully initialized. | |
| 46 bool InitSkBitmapFromData(SkBitmap* bitmap, const char* pixels, | |
| 47 size_t total_pixels) const { | |
| 48 if (total_pixels) { | |
| 49 bitmap->setConfig(fConfig, fWidth, fHeight, fRowBytes); | |
| 50 if (!bitmap->allocPixels()) | |
| 51 return false; | |
| 52 if (total_pixels > bitmap->getSize()) | |
| 53 return false; | |
| 54 memcpy(bitmap->getPixels(), pixels, total_pixels); | |
| 55 } | |
| 56 return true; | |
| 57 } | |
| 58 }; | |
| 59 | |
| 60 } // namespace | |
| 61 | |
| 62 | |
| 63 void ParamTraits<SkBitmap>::Write(Message* m, const SkBitmap& p) { | |
| 64 size_t fixed_size = sizeof(SkBitmap_Data); | |
| 65 SkBitmap_Data bmp_data; | |
| 66 bmp_data.InitSkBitmapDataForTransfer(p); | |
| 67 m->WriteData(reinterpret_cast<const char*>(&bmp_data), | |
| 68 static_cast<int>(fixed_size)); | |
| 69 size_t pixel_size = p.getSize(); | |
| 70 SkAutoLockPixels p_lock(p); | |
| 71 m->WriteData(reinterpret_cast<const char*>(p.getPixels()), | |
| 72 static_cast<int>(pixel_size)); | |
| 73 } | |
| 74 | |
| 75 bool ParamTraits<SkBitmap>::Read(const Message* m, void** iter, SkBitmap* r) { | |
| 76 const char* fixed_data; | |
| 77 int fixed_data_size = 0; | |
| 78 if (!m->ReadData(iter, &fixed_data, &fixed_data_size) || | |
| 79 (fixed_data_size <= 0)) { | |
| 80 NOTREACHED(); | |
| 81 return false; | |
| 82 } | |
| 83 if (fixed_data_size != sizeof(SkBitmap_Data)) | |
| 84 return false; // Message is malformed. | |
| 85 | |
| 86 const char* variable_data; | |
| 87 int variable_data_size = 0; | |
| 88 if (!m->ReadData(iter, &variable_data, &variable_data_size) || | |
| 89 (variable_data_size < 0)) { | |
| 90 NOTREACHED(); | |
| 91 return false; | |
| 92 } | |
| 93 const SkBitmap_Data* bmp_data = | |
| 94 reinterpret_cast<const SkBitmap_Data*>(fixed_data); | |
| 95 return bmp_data->InitSkBitmapFromData(r, variable_data, variable_data_size); | |
| 96 } | |
| 97 | |
| 98 void ParamTraits<SkBitmap>::Log(const SkBitmap& p, std::wstring* l) { | |
| 99 l->append(StringPrintf(L"<SkBitmap>")); | |
| 100 } | |
| 101 | |
| 102 #endif // EXCLUDE_SKIA_DEPENDENCIES | |
| 103 | |
| 104 void ParamTraits<GURL>::Write(Message* m, const GURL& p) { | |
| 105 m->WriteString(p.possibly_invalid_spec()); | |
| 106 // TODO(brettw) bug 684583: Add encoding for query params. | |
| 107 } | |
| 108 | |
| 109 bool ParamTraits<GURL>::Read(const Message* m, void** iter, GURL* p) { | |
| 110 std::string s; | |
| 111 if (!m->ReadString(iter, &s)) { | |
| 112 *p = GURL(); | |
| 113 return false; | |
| 114 } | |
| 115 *p = GURL(s); | |
| 116 return true; | |
| 117 } | |
| 118 | |
| 119 void ParamTraits<GURL>::Log(const GURL& p, std::wstring* l) { | |
| 120 l->append(UTF8ToWide(p.spec())); | |
| 121 } | |
| 122 | |
| 123 void ParamTraits<gfx::Point>::Write(Message* m, const gfx::Point& p) { | |
| 124 m->WriteInt(p.x()); | |
| 125 m->WriteInt(p.y()); | |
| 126 } | |
| 127 | |
| 128 bool ParamTraits<gfx::Point>::Read(const Message* m, void** iter, | |
| 129 gfx::Point* r) { | |
| 130 int x, y; | |
| 131 if (!m->ReadInt(iter, &x) || | |
| 132 !m->ReadInt(iter, &y)) | |
| 133 return false; | |
| 134 r->set_x(x); | |
| 135 r->set_y(y); | |
| 136 return true; | |
| 137 } | |
| 138 | |
| 139 void ParamTraits<gfx::Point>::Log(const gfx::Point& p, std::wstring* l) { | |
| 140 l->append(StringPrintf(L"(%d, %d)", p.x(), p.y())); | |
| 141 } | |
| 142 | |
| 143 | |
| 144 void ParamTraits<gfx::Rect>::Write(Message* m, const gfx::Rect& p) { | |
| 145 m->WriteInt(p.x()); | |
| 146 m->WriteInt(p.y()); | |
| 147 m->WriteInt(p.width()); | |
| 148 m->WriteInt(p.height()); | |
| 149 } | |
| 150 | |
| 151 bool ParamTraits<gfx::Rect>::Read(const Message* m, void** iter, gfx::Rect* r) { | |
| 152 int x, y, w, h; | |
| 153 if (!m->ReadInt(iter, &x) || | |
| 154 !m->ReadInt(iter, &y) || | |
| 155 !m->ReadInt(iter, &w) || | |
| 156 !m->ReadInt(iter, &h)) | |
| 157 return false; | |
| 158 r->set_x(x); | |
| 159 r->set_y(y); | |
| 160 r->set_width(w); | |
| 161 r->set_height(h); | |
| 162 return true; | |
| 163 } | |
| 164 | |
| 165 void ParamTraits<gfx::Rect>::Log(const gfx::Rect& p, std::wstring* l) { | |
| 166 l->append(StringPrintf(L"(%d, %d, %d, %d)", p.x(), p.y(), | |
| 167 p.width(), p.height())); | |
| 168 } | |
| 169 | |
| 170 | |
| 171 void ParamTraits<gfx::Size>::Write(Message* m, const gfx::Size& p) { | |
| 172 m->WriteInt(p.width()); | |
| 173 m->WriteInt(p.height()); | |
| 174 } | |
| 175 | |
| 176 bool ParamTraits<gfx::Size>::Read(const Message* m, void** iter, gfx::Size* r) { | |
| 177 int w, h; | |
| 178 if (!m->ReadInt(iter, &w) || | |
| 179 !m->ReadInt(iter, &h)) | |
| 180 return false; | |
| 181 r->set_width(w); | |
| 182 r->set_height(h); | |
| 183 return true; | |
| 184 } | |
| 185 | |
| 186 void ParamTraits<gfx::Size>::Log(const gfx::Size& p, std::wstring* l) { | |
| 187 l->append(StringPrintf(L"(%d, %d)", p.width(), p.height())); | |
| 188 } | |
| 189 | |
| 190 void ParamTraits<webkit_glue::WebApplicationInfo>::Write( | |
| 191 Message* m, const webkit_glue::WebApplicationInfo& p) { | |
| 192 WriteParam(m, p.title); | |
| 193 WriteParam(m, p.description); | |
| 194 WriteParam(m, p.app_url); | |
| 195 WriteParam(m, p.icons.size()); | |
| 196 for (size_t i = 0; i < p.icons.size(); ++i) { | |
| 197 WriteParam(m, p.icons[i].url); | |
| 198 WriteParam(m, p.icons[i].width); | |
| 199 WriteParam(m, p.icons[i].height); | |
| 200 } | |
| 201 } | |
| 202 | |
| 203 bool ParamTraits<webkit_glue::WebApplicationInfo>::Read( | |
| 204 const Message* m, void** iter, webkit_glue::WebApplicationInfo* r) { | |
| 205 size_t icon_count; | |
| 206 bool result = | |
| 207 ReadParam(m, iter, &r->title) && | |
| 208 ReadParam(m, iter, &r->description) && | |
| 209 ReadParam(m, iter, &r->app_url) && | |
| 210 ReadParam(m, iter, &icon_count); | |
| 211 if (!result) | |
| 212 return false; | |
| 213 for (size_t i = 0; i < icon_count && result; ++i) { | |
| 214 param_type::IconInfo icon_info; | |
| 215 result = | |
| 216 ReadParam(m, iter, &icon_info.url) && | |
| 217 ReadParam(m, iter, &icon_info.width) && | |
| 218 ReadParam(m, iter, &icon_info.height); | |
| 219 r->icons.push_back(icon_info); | |
| 220 } | |
| 221 return result; | |
| 222 } | |
| 223 | |
| 224 void ParamTraits<webkit_glue::WebApplicationInfo>::Log( | |
| 225 const webkit_glue::WebApplicationInfo& p, std::wstring* l) { | |
| 226 l->append(L"<WebApplicationInfo>"); | |
| 227 } | |
| 228 | |
| 229 // Value serialization | |
| 230 | |
| 231 static bool ReadValue(const Message* m, void** iter, Value** value, | |
| 232 int recursion); | |
| 233 | |
| 234 static void WriteValue(Message* m, const Value* value, int recursion) { | |
| 235 if (recursion > kMaxRecursionDepth) { | |
| 236 LOG(WARNING) << "Max recursion depth hit in WriteValue."; | |
| 237 return; | |
| 238 } | |
| 239 | |
| 240 m->WriteInt(value->GetType()); | |
| 241 | |
| 242 switch (value->GetType()) { | |
| 243 case Value::TYPE_NULL: | |
| 244 break; | |
| 245 case Value::TYPE_BOOLEAN: { | |
| 246 bool val; | |
| 247 value->GetAsBoolean(&val); | |
| 248 WriteParam(m, val); | |
| 249 break; | |
| 250 } | |
| 251 case Value::TYPE_INTEGER: { | |
| 252 int val; | |
| 253 value->GetAsInteger(&val); | |
| 254 WriteParam(m, val); | |
| 255 break; | |
| 256 } | |
| 257 case Value::TYPE_REAL: { | |
| 258 double val; | |
| 259 value->GetAsReal(&val); | |
| 260 WriteParam(m, val); | |
| 261 break; | |
| 262 } | |
| 263 case Value::TYPE_STRING: { | |
| 264 std::string val; | |
| 265 value->GetAsString(&val); | |
| 266 WriteParam(m, val); | |
| 267 break; | |
| 268 } | |
| 269 case Value::TYPE_BINARY: { | |
| 270 NOTREACHED() << "Don't send BinaryValues over IPC."; | |
| 271 } | |
| 272 case Value::TYPE_DICTIONARY: { | |
| 273 const DictionaryValue* dict = static_cast<const DictionaryValue*>(value); | |
| 274 | |
| 275 WriteParam(m, static_cast<int>(dict->GetSize())); | |
| 276 | |
| 277 for (DictionaryValue::key_iterator it = dict->begin_keys(); | |
| 278 it != dict->end_keys(); ++it) { | |
| 279 Value* subval; | |
| 280 if (dict->Get(*it, &subval)) { | |
| 281 WriteParam(m, *it); | |
| 282 WriteValue(m, subval, recursion + 1); | |
| 283 } else { | |
| 284 NOTREACHED() << "DictionaryValue iterators are filthy liars."; | |
| 285 } | |
| 286 } | |
| 287 break; | |
| 288 } | |
| 289 case Value::TYPE_LIST: { | |
| 290 const ListValue* list = static_cast<const ListValue*>(value); | |
| 291 WriteParam(m, static_cast<int>(list->GetSize())); | |
| 292 for (size_t i = 0; i < list->GetSize(); ++i) { | |
| 293 Value* subval; | |
| 294 if (list->Get(i, &subval)) { | |
| 295 WriteValue(m, subval, recursion + 1); | |
| 296 } else { | |
| 297 NOTREACHED() << "ListValue::GetSize is a filthy liar."; | |
| 298 } | |
| 299 } | |
| 300 break; | |
| 301 } | |
| 302 } | |
| 303 } | |
| 304 | |
| 305 // Helper for ReadValue that reads a DictionaryValue into a pre-allocated | |
| 306 // object. | |
| 307 static bool ReadDictionaryValue(const Message* m, void** iter, | |
| 308 DictionaryValue* value, int recursion) { | |
| 309 int size; | |
| 310 if (!ReadParam(m, iter, &size)) | |
| 311 return false; | |
| 312 | |
| 313 for (int i = 0; i < size; ++i) { | |
| 314 std::wstring key; | |
| 315 Value* subval; | |
| 316 if (!ReadParam(m, iter, &key) || | |
| 317 !ReadValue(m, iter, &subval, recursion + 1)) | |
| 318 return false; | |
| 319 value->Set(key, subval); | |
| 320 } | |
| 321 | |
| 322 return true; | |
| 323 } | |
| 324 | |
| 325 // Helper for ReadValue that reads a ReadListValue into a pre-allocated | |
| 326 // object. | |
| 327 static bool ReadListValue(const Message* m, void** iter, | |
| 328 ListValue* value, int recursion) { | |
| 329 int size; | |
| 330 if (!ReadParam(m, iter, &size)) | |
| 331 return false; | |
| 332 | |
| 333 for (int i = 0; i < size; ++i) { | |
| 334 Value* subval; | |
| 335 if (!ReadValue(m, iter, &subval, recursion + 1)) | |
| 336 return false; | |
| 337 value->Set(i, subval); | |
| 338 } | |
| 339 | |
| 340 return true; | |
| 341 } | |
| 342 | |
| 343 static bool ReadValue(const Message* m, void** iter, Value** value, | |
| 344 int recursion) { | |
| 345 if (recursion > kMaxRecursionDepth) { | |
| 346 LOG(WARNING) << "Max recursion depth hit in ReadValue."; | |
| 347 return false; | |
| 348 } | |
| 349 | |
| 350 int type; | |
| 351 if (!ReadParam(m, iter, &type)) | |
| 352 return false; | |
| 353 | |
| 354 switch (type) { | |
| 355 case Value::TYPE_NULL: | |
| 356 *value = Value::CreateNullValue(); | |
| 357 break; | |
| 358 case Value::TYPE_BOOLEAN: { | |
| 359 bool val; | |
| 360 if (!ReadParam(m, iter, &val)) | |
| 361 return false; | |
| 362 *value = Value::CreateBooleanValue(val); | |
| 363 break; | |
| 364 } | |
| 365 case Value::TYPE_INTEGER: { | |
| 366 int val; | |
| 367 if (!ReadParam(m, iter, &val)) | |
| 368 return false; | |
| 369 *value = Value::CreateIntegerValue(val); | |
| 370 break; | |
| 371 } | |
| 372 case Value::TYPE_REAL: { | |
| 373 double val; | |
| 374 if (!ReadParam(m, iter, &val)) | |
| 375 return false; | |
| 376 *value = Value::CreateRealValue(val); | |
| 377 break; | |
| 378 } | |
| 379 case Value::TYPE_STRING: { | |
| 380 std::string val; | |
| 381 if (!ReadParam(m, iter, &val)) | |
| 382 return false; | |
| 383 *value = Value::CreateStringValue(val); | |
| 384 break; | |
| 385 } | |
| 386 case Value::TYPE_BINARY: { | |
| 387 NOTREACHED() << "Don't send BinaryValues over IPC."; | |
| 388 break; | |
| 389 } | |
| 390 case Value::TYPE_DICTIONARY: { | |
| 391 scoped_ptr<DictionaryValue> val(new DictionaryValue()); | |
| 392 if (!ReadDictionaryValue(m, iter, val.get(), recursion)) | |
| 393 return false; | |
| 394 *value = val.release(); | |
| 395 break; | |
| 396 } | |
| 397 case Value::TYPE_LIST: { | |
| 398 scoped_ptr<ListValue> val(new ListValue()); | |
| 399 if (!ReadListValue(m, iter, val.get(), recursion)) | |
| 400 return false; | |
| 401 *value = val.release(); | |
| 402 break; | |
| 403 } | |
| 404 default: | |
| 405 return false; | |
| 406 } | |
| 407 | |
| 408 return true; | |
| 409 } | |
| 410 | |
| 411 void ParamTraits<DictionaryValue>::Write(Message* m, const param_type& p) { | |
| 412 WriteValue(m, &p, 0); | |
| 413 } | |
| 414 | |
| 415 bool ParamTraits<DictionaryValue>::Read( | |
| 416 const Message* m, void** iter, param_type* r) { | |
| 417 int type; | |
| 418 if (!ReadParam(m, iter, &type) || type != Value::TYPE_DICTIONARY) | |
| 419 return false; | |
| 420 | |
| 421 return ReadDictionaryValue(m, iter, r, 0); | |
| 422 } | |
| 423 | |
| 424 void ParamTraits<DictionaryValue>::Log(const param_type& p, std::wstring* l) { | |
| 425 std::string json; | |
| 426 JSONWriter::Write(&p, false, &json); | |
| 427 l->append(UTF8ToWide(json)); | |
| 428 } | |
| 429 | |
| 430 void ParamTraits<ListValue>::Write(Message* m, const param_type& p) { | |
| 431 WriteValue(m, &p, 0); | |
| 432 } | |
| 433 | |
| 434 bool ParamTraits<ListValue>::Read( | |
| 435 const Message* m, void** iter, param_type* r) { | |
| 436 int type; | |
| 437 if (!ReadParam(m, iter, &type) || type != Value::TYPE_LIST) | |
| 438 return false; | |
| 439 | |
| 440 return ReadListValue(m, iter, r, 0); | |
| 441 } | |
| 442 | |
| 443 void ParamTraits<ListValue>::Log(const param_type& p, std::wstring* l) { | |
| 444 std::string json; | |
| 445 JSONWriter::Write(&p, false, &json); | |
| 446 l->append(UTF8ToWide(json)); | |
| 447 } | |
| 448 } // namespace IPC | |
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Chromium Code Reviews
Issue 155905:
Separates ipc code from common (http://crbug.com/16829) (Closed)
