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| 1 // Copyright 2011, Google Inc. |
| 2 // All rights reserved. |
| 3 // |
| 4 // Redistribution and use in source and binary forms, with or without |
| 5 // modification, are permitted provided that the following conditions are |
| 6 // met: |
| 7 // |
| 8 // * Redistributions of source code must retain the above copyright |
| 9 // notice, this list of conditions and the following disclaimer. |
| 10 // * Redistributions in binary form must reproduce the above |
| 11 // copyright notice, this list of conditions and the following disclaimer |
| 12 // in the documentation and/or other materials provided with the |
| 13 // distribution. |
| 14 // * Neither the name of Google Inc. nor the names of its |
| 15 // contributors may be used to endorse or promote products derived from |
| 16 // this software without specific prior written permission. |
| 17 // |
| 18 // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| 19 // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| 20 // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| 21 // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| 22 // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| 23 // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| 24 // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 25 // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 26 // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 27 // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| 28 // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 29 |
| 30 #ifndef DartDOMWrapper_h |
| 31 #define DartDOMWrapper_h |
| 32 |
| 33 #include "DartScriptValueDeserializer.h" |
| 34 #include "DartUtilities.h" |
| 35 #include "EventListener.h" |
| 36 #include "EventTarget.h" |
| 37 #include "ExceptionCode.h" |
| 38 #include "MediaQueryListListener.h" |
| 39 #include "OptionsObject.h" |
| 40 #include "Range.h" |
| 41 #include "ScriptValue.h" |
| 42 #include "SerializedScriptValue.h" |
| 43 #if ENABLE(SVG) |
| 44 #include "SVGPropertyTearOff.h" |
| 45 #endif |
| 46 #include "VoidCallback.h" |
| 47 #include "npruntime_impl.h" |
| 48 |
| 49 #include <bindings/npruntime.h> |
| 50 #include <dart_api.h> |
| 51 #include <wtf/PassRefPtr.h> |
| 52 #include <wtf/RefPtr.h> |
| 53 #include <wtf/text/AtomicString.h> |
| 54 #include <wtf/text/WTFString.h> |
| 55 |
| 56 namespace WebCore { |
| 57 |
| 58 #if ENABLE(FILE_SYSTEM) |
| 59 class Entry; |
| 60 class EntrySync; |
| 61 #endif |
| 62 |
| 63 #if ENABLE(INDEXED_DATABASE) |
| 64 class IDBAny; |
| 65 class IDBKey; |
| 66 #endif |
| 67 |
| 68 #if ENABLE(SVG) |
| 69 class SVGPathSeg; |
| 70 #endif |
| 71 |
| 72 enum ConversionFlag { |
| 73 ConvertNone = 0, |
| 74 ConvertDefaultToNull = 1 |
| 75 }; |
| 76 |
| 77 // The only purpose of this template declaration is to prohibit implicit |
| 78 // conversions of toDartValue parameter. |
| 79 template <typename Type> |
| 80 Dart_Handle toDartValue(Type value); |
| 81 |
| 82 template <typename Type> |
| 83 Dart_Handle toDartValue(Type value, ConversionFlag); |
| 84 |
| 85 template <typename Type> |
| 86 inline Dart_Handle toDartValue(PassRefPtr<Type> value) |
| 87 { |
| 88 return toDartValue(value.get()); |
| 89 } |
| 90 |
| 91 inline Dart_Handle toDartValue(const AtomicString& value, ConversionFlag flag =
ConvertNone) |
| 92 { |
| 93 if ((flag & ConvertDefaultToNull) && value.isNull()) |
| 94 return 0; |
| 95 return DartUtilities::stringToDartString(value); |
| 96 } |
| 97 |
| 98 inline Dart_Handle toDartValue(const String& value, ConversionFlag flag = Conver
tNone) |
| 99 { |
| 100 if ((flag & ConvertDefaultToNull) && value.isNull()) |
| 101 return 0; |
| 102 return DartUtilities::stringToDartString(value); |
| 103 } |
| 104 |
| 105 inline Dart_Handle toDartValue(bool value) |
| 106 { |
| 107 return Dart_NewBoolean(value); |
| 108 } |
| 109 |
| 110 inline Dart_Handle toDartValue(unsigned long long value) |
| 111 { |
| 112 // FIXME: WebIDL unsigned long long is guaranteed to fit into 64-bit unsigne
d, |
| 113 // so we need a dart API for constructing an integer from uint64_t. |
| 114 ASSERT(value <= 0x7fffffffffffffffLL); |
| 115 return Dart_NewInteger(static_cast<int64_t>(value)); |
| 116 } |
| 117 |
| 118 inline Dart_Handle toDartValue(int64_t value) |
| 119 { |
| 120 return Dart_NewInteger(value); |
| 121 } |
| 122 |
| 123 inline Dart_Handle toDartValue(intptr_t value) |
| 124 { |
| 125 return Dart_NewInteger(value); |
| 126 } |
| 127 |
| 128 inline Dart_Handle toDartValue(float value) |
| 129 { |
| 130 return Dart_NewDouble(value); |
| 131 } |
| 132 |
| 133 inline Dart_Handle toDartValue(double value) |
| 134 { |
| 135 return Dart_NewDouble(value); |
| 136 } |
| 137 |
| 138 inline Dart_Handle toDartValue(const KURL& value, ConversionFlag flag = ConvertN
one) |
| 139 { |
| 140 return toDartValue(value.string(), flag); |
| 141 } |
| 142 |
| 143 inline Dart_Handle toDartValue(const ScriptValue& value) |
| 144 { |
| 145 // FIXME: dart specific implementation of ScriptValue and |
| 146 // proper conversion. |
| 147 DART_UNIMPLEMENTED(); |
| 148 return 0; |
| 149 } |
| 150 |
| 151 inline Dart_Handle toDartValue(SerializedScriptValue* value) |
| 152 { |
| 153 // FIXME: better error handling. |
| 154 DartScriptValueDeserializer deserializer; |
| 155 if (!value->deserialize(&deserializer)) |
| 156 return 0; |
| 157 return deserializer.result(); |
| 158 } |
| 159 |
| 160 Dart_Handle toDartValue(NPObject* object); |
| 161 |
| 162 class ContainerNode; |
| 163 Dart_Handle toDartValue(ContainerNode*); |
| 164 |
| 165 class CSSMutableStyleDeclaration; |
| 166 Dart_Handle toDartValue(CSSMutableStyleDeclaration*); |
| 167 |
| 168 class HTMLFormControlElement; |
| 169 Dart_Handle toDartValue(HTMLFormControlElement*); |
| 170 |
| 171 class DartDOMWrapper { |
| 172 public: |
| 173 template <class WebkitClass> |
| 174 static Dart_Handle newWrapper(const char* className, WebkitClass* domObject) |
| 175 { |
| 176 Dart_Handle wrapper = instantiateWrapper(className); |
| 177 installNativePointers(domObject, wrapper); |
| 178 return wrapper; |
| 179 } |
| 180 |
| 181 template <class BindingsClass> |
| 182 static Dart_Handle toDart(typename BindingsClass::NativeType* instance) |
| 183 { |
| 184 return toDart(instance, BindingsClass::dartImplementationClassName); |
| 185 } |
| 186 |
| 187 template <class WebkitClass> |
| 188 static Dart_Handle toDart(WebkitClass* instance, const char* className) |
| 189 { |
| 190 if (!instance) |
| 191 return 0; |
| 192 |
| 193 // FIXME: custom toDartValue implementations should check the cache firs
t. |
| 194 // FIXME: separate maps for nodes, dom objects and active dom objects. |
| 195 DartDOMMap* domMap = DartUtilities::domMapForCurrentIsolate(); |
| 196 Dart_Handle wrapper = domMap->get(instance); |
| 197 if (wrapper) |
| 198 return wrapper; |
| 199 |
| 200 wrapper = instantiateWrapper(className); |
| 201 bindDOMObjectToDartWrapper(instance, wrapper); |
| 202 return wrapper; |
| 203 } |
| 204 |
| 205 template <class WebkitClass> |
| 206 static void bindDOMObjectToDartWrapper(WebkitClass* domObject, Dart_Handle w
rapper) |
| 207 { |
| 208 ASSERT(domObject); |
| 209 domObject->ref(); |
| 210 installNativePointers(domObject, wrapper); |
| 211 |
| 212 // FIXME: make persistent handle weak and deref domObject in weak callba
ck. |
| 213 Dart_Handle persistentWrapperHandle = Dart_NewPersistentHandle(wrapper); |
| 214 |
| 215 DartDOMMap* domMap = DartUtilities::domMapForCurrentIsolate(); |
| 216 ASSERT(!domMap->contains(domObject)); |
| 217 domMap->set(domObject, persistentWrapperHandle); |
| 218 } |
| 219 |
| 220 template <class BindingsClass> |
| 221 static typename BindingsClass::NativeType* unwrapDartWrapper(Dart_Handle wra
pper, Dart_Handle& exception) |
| 222 { |
| 223 // FIXME: support cross-domain wrappers. |
| 224 if (!instanceOf(BindingsClass::dartImplementationClassName, wrapper, exc
eption)) |
| 225 return 0; |
| 226 ASSERT(!exception); |
| 227 void* nativePointer = readNativePointer(wrapper, kNativeImplementationIn
dex); |
| 228 return reinterpret_cast<typename BindingsClass::NativeType*>(nativePoint
er); |
| 229 } |
| 230 |
| 231 static void derefDOMObject(Dart_Handle wrapper, void* domObject); |
| 232 |
| 233 template <class WebkitClass> |
| 234 static WebkitClass* receiver(Dart_NativeArguments args) |
| 235 { |
| 236 // Type of receiver is ensured by Dart VM runtime, so bypass additional
checks. |
| 237 void* nativePointer = readNativePointer(Dart_GetNativeArgument(args, 0),
kNativeImplementationIndex); |
| 238 WebkitClass* const recv = static_cast<WebkitClass*>(nativePointer); |
| 239 ASSERT(recv); // Never should return 0. |
| 240 return recv; |
| 241 } |
| 242 |
| 243 template <typename Type> |
| 244 static void returnValue(Dart_NativeArguments args, const Type& value) |
| 245 { |
| 246 Dart_Handle result = toDartValue(value); |
| 247 if (result) |
| 248 Dart_SetReturnValue(args, result); |
| 249 } |
| 250 |
| 251 static int wrapperNativeFieldCount() { return kNativeFieldCount; } |
| 252 |
| 253 template <typename Type> |
| 254 static void returnValue(Dart_NativeArguments args, const Type& value, Conver
sionFlag flag) |
| 255 { |
| 256 Dart_Handle result = toDartValue(value, flag); |
| 257 if (result) |
| 258 Dart_SetReturnValue(args, result); |
| 259 } |
| 260 |
| 261 static Dart_Handle exceptionCodeToDartException(ExceptionCode); |
| 262 |
| 263 private: |
| 264 enum NativeFieldIndices { |
| 265 kNativeImplementationIndex = 0, |
| 266 kDerefObjectFunctionIndex, |
| 267 kNativeFieldCount |
| 268 }; |
| 269 |
| 270 static Dart_Handle instantiateWrapper(const char* className); |
| 271 static bool instanceOf(const char* dartImplementationClassName, Dart_Handle
wrapper, Dart_Handle& exception); |
| 272 |
| 273 static void writeNativePointer(Dart_Handle wrapper, int index, void* pointer
) |
| 274 { |
| 275 DartApiScope scope; |
| 276 Dart_Handle result = Dart_SetNativeInstanceField(wrapper, index, reinter
pret_cast<intptr_t>(pointer)); |
| 277 UNUSED_PARAM(result); |
| 278 ASSERT(!Dart_IsError(result)); |
| 279 } |
| 280 |
| 281 static void* readNativePointer(Dart_Handle wrapper, int index) |
| 282 { |
| 283 // FIXME: Try to remove this scope from the hot path. |
| 284 DartApiScope scope; |
| 285 intptr_t value; |
| 286 Dart_Handle result = Dart_GetNativeInstanceField(wrapper, index, &value)
; |
| 287 ASSERT(!Dart_IsError(result)); |
| 288 UNUSED_PARAM(result); |
| 289 return reinterpret_cast<void*>(value); |
| 290 } |
| 291 |
| 292 template <class WebkitClass> |
| 293 static void installNativePointers(WebkitClass* domObject, Dart_Handle wrappe
r) |
| 294 { |
| 295 ASSERT(domObject); |
| 296 DerefObjectFunction derefObjectFunction = &DartDOMWrapper::derefObject<W
ebkitClass>; |
| 297 writeNativePointer(wrapper, kNativeImplementationIndex, domObject); |
| 298 writeNativePointer(wrapper, kDerefObjectFunctionIndex, reinterpret_cast<
void*>(derefObjectFunction)); |
| 299 } |
| 300 |
| 301 typedef void (*DerefObjectFunction)(void*); |
| 302 |
| 303 template<typename T> |
| 304 static void derefObject(void* pointer) |
| 305 { |
| 306 static_cast<T*>(pointer)->deref(); |
| 307 } |
| 308 }; |
| 309 |
| 310 template<> |
| 311 inline void DartDOMWrapper::derefObject<NPObject>(void*) |
| 312 { |
| 313 // FIXME: proper deref. |
| 314 } |
| 315 |
| 316 // ParameterAdapter. |
| 317 |
| 318 template <typename Value> |
| 319 class ParameterAdapterBase { |
| 320 public: |
| 321 bool conversionSuccessful() const { return !m_exception; } |
| 322 |
| 323 Dart_Handle exception() const |
| 324 { |
| 325 ASSERT(!conversionSuccessful()); |
| 326 return m_exception; |
| 327 } |
| 328 |
| 329 protected: |
| 330 |
| 331 ParameterAdapterBase() |
| 332 : m_value() |
| 333 , m_exception(0) { } |
| 334 |
| 335 void setException(Dart_Handle exception) |
| 336 { |
| 337 ASSERT(exception); |
| 338 m_exception = exception; |
| 339 ASSERT(!conversionSuccessful()); |
| 340 } |
| 341 |
| 342 const Value& value() const |
| 343 { |
| 344 ASSERT(conversionSuccessful()); |
| 345 return m_value; |
| 346 } |
| 347 |
| 348 void setValue(Value value) |
| 349 { |
| 350 m_value = value; |
| 351 } |
| 352 |
| 353 protected: |
| 354 Value m_value; |
| 355 |
| 356 private: |
| 357 Dart_Handle m_exception; |
| 358 }; |
| 359 |
| 360 |
| 361 template <class NativeValue, class DartBindingsClass = void> |
| 362 class ParameterAdapter : public ParameterAdapterBase<NativeValue*> { |
| 363 public: |
| 364 explicit ParameterAdapter(Dart_Handle handle) |
| 365 { |
| 366 Dart_Handle exception = 0; |
| 367 this->setValue(DartBindingsClass::toNative(handle, exception).get()); |
| 368 if (exception) |
| 369 this->setException(exception); |
| 370 } |
| 371 |
| 372 operator PassRefPtr<NativeValue>() const { return this->value(); } |
| 373 operator NativeValue*() const { return this->value(); } |
| 374 }; |
| 375 |
| 376 template <> |
| 377 class ParameterAdapter< RefPtr<EventListener> > : public ParameterAdapterBase< R
efPtr<EventListener> > { |
| 378 public: |
| 379 explicit ParameterAdapter(Dart_Handle handle) |
| 380 { |
| 381 // FIXME: abstract away this common pattern of exception management in c
onversion. |
| 382 Dart_Handle exception = 0; |
| 383 this->setValue(DartUtilities::toEventListener(handle, exception)); |
| 384 if (exception) |
| 385 this->setException(exception); |
| 386 } |
| 387 operator EventListener*() const { return this->value().get(); } |
| 388 operator PassRefPtr<EventListener>() const { return this->value(); } |
| 389 }; |
| 390 |
| 391 template <> |
| 392 class ParameterAdapter< RefPtr<EventTarget> > : public ParameterAdapterBase< Ref
Ptr<EventTarget> > { |
| 393 public: |
| 394 explicit ParameterAdapter(Dart_Handle handle) |
| 395 { |
| 396 // FIXME: abstract away this common pattern of exception management in c
onversion. |
| 397 Dart_Handle exception = 0; |
| 398 this->setValue(DartUtilities::toEventTarget(handle, exception)); |
| 399 if (exception) |
| 400 this->setException(exception); |
| 401 } |
| 402 operator EventTarget*() const { return this->value().get(); } |
| 403 operator PassRefPtr<EventTarget>() const { return this->value(); } |
| 404 }; |
| 405 |
| 406 template <> |
| 407 class ParameterAdapter< RefPtr<MediaQueryListListener> > : public ParameterAdapt
erBase<MediaQueryListListener*> { |
| 408 public: |
| 409 explicit ParameterAdapter(Dart_Handle handle) |
| 410 { |
| 411 setException(Dart_NewString("Not supported yet")); |
| 412 } |
| 413 operator MediaQueryListListener*() const { return this->value(); } |
| 414 operator PassRefPtr<MediaQueryListListener>() const { return this->value();
} |
| 415 }; |
| 416 |
| 417 template <> |
| 418 class ParameterAdapter< RefPtr<SerializedScriptValue> > : public ParameterAdapte
rBase< RefPtr<SerializedScriptValue> > { |
| 419 public: |
| 420 explicit ParameterAdapter(Dart_Handle handle) |
| 421 { |
| 422 // FIXME: abstract away this common pattern of exception management in c
onversion. |
| 423 Dart_Handle exception = 0; |
| 424 this->setValue(DartUtilities::toSerializedScriptValue(handle, exception)
); |
| 425 if (exception) |
| 426 this->setException(exception); |
| 427 } |
| 428 operator SerializedScriptValue*() const { return this->value().get(); } |
| 429 operator PassRefPtr<SerializedScriptValue>() const { return this->value(); } |
| 430 PassRefPtr<SerializedScriptValue> release() { return m_value->release(); } |
| 431 }; |
| 432 |
| 433 template <> |
| 434 class ParameterAdapter< RefPtr<VoidCallback> > : public ParameterAdapterBase<Voi
dCallback*> { |
| 435 public: |
| 436 explicit ParameterAdapter(Dart_Handle handle) |
| 437 { |
| 438 setException(Dart_NewString("Not supported yet")); |
| 439 } |
| 440 operator VoidCallback*() const { return this->value(); } |
| 441 operator PassRefPtr<VoidCallback>() const { return this->value(); } |
| 442 }; |
| 443 |
| 444 #if ENABLE(SVG) |
| 445 template <class NativeValue, class DartBindingsClass> |
| 446 class ParameterAdapter< RefPtr<SVGPropertyTearOff<NativeValue> >, DartBindingsCl
ass> : public ParameterAdapterBase< RefPtr<SVGPropertyTearOff<NativeValue> > > { |
| 447 public: |
| 448 explicit ParameterAdapter(Dart_Handle handle) |
| 449 { |
| 450 Dart_Handle exception = 0; |
| 451 this->setValue(DartBindingsClass::toNative(handle, exception).get()); |
| 452 if (exception) |
| 453 this->setException(exception); |
| 454 } |
| 455 operator const NativeValue&() const { return this->value()->propertyReferenc
e(); } |
| 456 operator NativeValue&() { return this->value()->propertyReference(); } |
| 457 operator PassRefPtr<SVGPropertyTearOff<NativeValue> >() const { return this-
>value(); } |
| 458 operator SVGPropertyTearOff<NativeValue>*() const { return this->value().get
(); } |
| 459 }; |
| 460 #endif // ENABLE(SVG) |
| 461 |
| 462 template <class NativeValue, class DartBindingsClass> |
| 463 class ParameterAdapter< RefPtr<NativeValue>, DartBindingsClass > : public Parame
terAdapterBase< RefPtr<NativeValue> > { |
| 464 public: |
| 465 explicit ParameterAdapter(Dart_Handle handle) |
| 466 { |
| 467 Dart_Handle exception = 0; |
| 468 this->setValue(DartBindingsClass::toNative(handle, exception)); |
| 469 if (exception) |
| 470 this->setException(exception); |
| 471 } |
| 472 |
| 473 operator PassRefPtr<NativeValue>() const { return this->value(); } |
| 474 operator RefPtr<NativeValue>() const { return this->value(); } |
| 475 operator NativeValue*() const { return this->value().get(); } |
| 476 }; |
| 477 |
| 478 class DoubleParameterAdapter : public ParameterAdapterBase<double> { |
| 479 protected: |
| 480 explicit DoubleParameterAdapter(Dart_Handle handle) |
| 481 { |
| 482 Dart_Handle exception = 0; |
| 483 setValue(DartUtilities::toDouble(handle, exception)); |
| 484 if (exception) |
| 485 setException(exception); |
| 486 } |
| 487 }; |
| 488 |
| 489 template <> |
| 490 class ParameterAdapter<double> : public DoubleParameterAdapter { |
| 491 public: |
| 492 explicit ParameterAdapter(Dart_Handle handle) |
| 493 : DoubleParameterAdapter(handle) { } |
| 494 operator double() const { return this->value(); } |
| 495 }; |
| 496 |
| 497 template <> |
| 498 class ParameterAdapter<float> : public DoubleParameterAdapter { |
| 499 public: |
| 500 explicit ParameterAdapter(Dart_Handle handle) |
| 501 : DoubleParameterAdapter(handle) { } |
| 502 operator float() const { return this->value(); } |
| 503 }; |
| 504 |
| 505 class IntParameterAdapter : public ParameterAdapterBase<int64_t> { |
| 506 protected: |
| 507 explicit IntParameterAdapter(Dart_Handle handle) |
| 508 { |
| 509 Dart_Handle exception = 0; |
| 510 setValue(DartUtilities::toInteger(handle, exception)); |
| 511 if (exception) |
| 512 setException(exception); |
| 513 } |
| 514 }; |
| 515 |
| 516 template <> |
| 517 class ParameterAdapter<int> : public IntParameterAdapter { |
| 518 public: |
| 519 explicit ParameterAdapter(Dart_Handle handle) |
| 520 : IntParameterAdapter(handle) |
| 521 { |
| 522 if (conversionSuccessful() && (value() < INT_MIN || value() > INT_MAX)) |
| 523 setException(Dart_NewString("value out of range")); |
| 524 } |
| 525 operator int() const { return this->value(); } |
| 526 }; |
| 527 |
| 528 template <> |
| 529 class ParameterAdapter<long long> : public IntParameterAdapter { |
| 530 public: |
| 531 explicit ParameterAdapter(Dart_Handle handle) |
| 532 : IntParameterAdapter(handle) { } |
| 533 // FIXME: proper processing of longer integer values. |
| 534 operator long long() const { return this->value(); } |
| 535 }; |
| 536 |
| 537 template <> |
| 538 class ParameterAdapter<unsigned int> : public IntParameterAdapter { |
| 539 public: |
| 540 explicit ParameterAdapter(Dart_Handle handle) |
| 541 : IntParameterAdapter(handle) |
| 542 { |
| 543 if (conversionSuccessful() && (value() < 0 || value() > UINT_MAX)) |
| 544 setException(Dart_NewString("value out of range")); |
| 545 } |
| 546 operator unsigned int() const { return this->value(); } |
| 547 }; |
| 548 |
| 549 template <> |
| 550 class ParameterAdapter<unsigned long long> : public IntParameterAdapter { |
| 551 public: |
| 552 explicit ParameterAdapter(Dart_Handle handle) |
| 553 : IntParameterAdapter(handle) |
| 554 { |
| 555 if (conversionSuccessful() && value() < 0) |
| 556 setException(Dart_NewString("value out of range")); |
| 557 } |
| 558 // FIXME: proper processing of longer integer values. |
| 559 operator unsigned long long() const { return this->value(); } |
| 560 }; |
| 561 |
| 562 // FIXME: [performance] need better treatment of String vs. AtomicString, cf. v8
implementation. |
| 563 template <> |
| 564 class ParameterAdapter<String> : public ParameterAdapterBase< RefPtr<StringImpl>
> { |
| 565 public: |
| 566 explicit ParameterAdapter(Dart_Handle handle, DartUtilities::ConversionFlag
flag = DartUtilities::ConvertNone) |
| 567 { |
| 568 Dart_Handle exception = 0; |
| 569 setValue(DartUtilities::toStringImpl(handle, flag, exception)); |
| 570 if (exception) |
| 571 setException(exception); |
| 572 } |
| 573 operator String() const { return String(this->value()); } |
| 574 operator AtomicString() const { return AtomicString(this->value()); } |
| 575 }; |
| 576 |
| 577 template <> |
| 578 class ParameterAdapter<bool> : public ParameterAdapterBase<bool> { |
| 579 public: |
| 580 explicit ParameterAdapter(Dart_Handle handle) |
| 581 { |
| 582 Dart_Handle exception = 0; |
| 583 setValue(DartUtilities::toBool(handle, exception)); |
| 584 if (exception) |
| 585 setException(exception); |
| 586 } |
| 587 operator bool() const { return this->value(); } |
| 588 }; |
| 589 |
| 590 template <> |
| 591 class ParameterAdapter<ScriptValue> : public ParameterAdapterBase<ScriptValue> { |
| 592 public: |
| 593 explicit ParameterAdapter(Dart_Handle handle) |
| 594 { |
| 595 setException(Dart_NewString("Not supported yet")); |
| 596 } |
| 597 operator ScriptValue() const { return this->value(); } |
| 598 }; |
| 599 |
| 600 template <> |
| 601 class ParameterAdapter<OptionsObject> : public ParameterAdapterBase<OptionsObjec
t> { |
| 602 public: |
| 603 explicit ParameterAdapter(Dart_Handle handle) |
| 604 { |
| 605 setException(Dart_NewString("Not supported yet")); |
| 606 } |
| 607 operator OptionsObject() const { return this->value(); } |
| 608 }; |
| 609 |
| 610 template <> |
| 611 class ParameterAdapter<Range::CompareHow> : public ParameterAdapterBase<Range::C
ompareHow> { |
| 612 public: |
| 613 explicit ParameterAdapter(Dart_Handle handle) |
| 614 { |
| 615 setException(Dart_NewString("Not supported yet")); |
| 616 } |
| 617 operator Range::CompareHow() const { return this->value(); } |
| 618 }; |
| 619 |
| 620 } |
| 621 |
| 622 #endif // DartDOMWrapper_h |
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