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| 1 /* | |
| 2 * Copyright (C) 2004, 2006 Apple Computer, Inc. All rights reserved. | |
| 3 * Copyright (C) 2007-2009 Google, Inc. All rights reserved. | |
| 4 * | |
| 5 * Redistribution and use in source and binary forms, with or without | |
| 6 * modification, are permitted provided that the following conditions | |
| 7 * are met: | |
| 8 * 1. Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * 2. Redistributions in binary form must reproduce the above copyright | |
| 11 * notice, this list of conditions and the following disclaimer in the | |
| 12 * documentation and/or other materials provided with the distribution. | |
| 13 * | |
| 14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY | |
| 15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 17 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR | |
| 18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 25 */ | |
| 26 | |
| 27 #include "config.h" | |
| 28 | |
| 29 #include <stdio.h> | |
| 30 | |
| 31 #define max max | |
| 32 #define min min | |
| 33 #include <v8.h> | |
| 34 #include "NPV8Object.h" | |
| 35 #include "ChromiumBridge.h" | |
| 36 #include "Frame.h" | |
| 37 #include "bindings/npruntime.h" | |
| 38 #include "npruntime_priv.h" | |
| 39 #include "PlatformString.h" | |
| 40 #include "ScriptController.h" | |
| 41 #include "V8CustomBinding.h" | |
| 42 #include "V8Helpers.h" | |
| 43 #include "V8NPUtils.h" | |
| 44 #include "v8_proxy.h" | |
| 45 #include "DOMWindow.h" | |
| 46 | |
| 47 using WebCore::toV8Context; | |
| 48 using WebCore::toV8Proxy; | |
| 49 using WebCore::V8ClassIndex; | |
| 50 using WebCore::V8Custom; | |
| 51 using WebCore::V8Proxy; | |
| 52 | |
| 53 // FIXME(mbelshe): comments on why use malloc and free. | |
| 54 static NPObject* AllocV8NPObject(NPP, NPClass*) | |
| 55 { | |
| 56 return static_cast<NPObject*>(malloc(sizeof(V8NPObject))); | |
| 57 } | |
| 58 | |
| 59 static void FreeV8NPObject(NPObject* npobj) | |
| 60 { | |
| 61 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 62 #ifndef NDEBUG | |
| 63 V8Proxy::UnregisterGlobalHandle(object, object->v8Object); | |
| 64 #endif | |
| 65 object->v8Object.Dispose(); | |
| 66 free(object); | |
| 67 } | |
| 68 | |
| 69 static v8::Handle<v8::Value>* listFromVariantArgs(const NPVariant* args, | |
| 70 uint32_t argCount, | |
| 71 NPObject *owner) | |
| 72 { | |
| 73 v8::Handle<v8::Value>* argv = new v8::Handle<v8::Value>[argCount]; | |
| 74 for (uint32_t index = 0; index < argCount; index++) { | |
| 75 const NPVariant *arg = &args[index]; | |
| 76 argv[index] = convertNPVariantToV8Object(arg, owner); | |
| 77 } | |
| 78 return argv; | |
| 79 } | |
| 80 | |
| 81 // Create an identifier (null terminated utf8 char*) from the NPIdentifier. | |
| 82 static v8::Local<v8::String> NPIdentifierToV8Identifier(NPIdentifier name) | |
| 83 { | |
| 84 PrivateIdentifier* identifier = static_cast<PrivateIdentifier*>(name); | |
| 85 if (identifier->isString) | |
| 86 return v8::String::New(static_cast<const char *>(identifier->value.strin
g)); | |
| 87 | |
| 88 char buf[32]; | |
| 89 sprintf(buf, "%d", identifier->value.number); | |
| 90 return v8::String::New(buf); | |
| 91 } | |
| 92 | |
| 93 static NPClass V8NPObjectClass = { NP_CLASS_STRUCT_VERSION, | |
| 94 AllocV8NPObject, | |
| 95 FreeV8NPObject, | |
| 96 0, 0, 0, 0, 0, 0, 0, 0, 0 }; | |
| 97 | |
| 98 // NPAPI's npruntime functions | |
| 99 NPClass* npScriptObjectClass = &V8NPObjectClass; | |
| 100 | |
| 101 NPObject* npCreateV8ScriptObject(NPP npp, v8::Handle<v8::Object> object, WebCore
::DOMWindow* root) | |
| 102 { | |
| 103 // Check to see if this object is already wrapped. | |
| 104 if (object->InternalFieldCount() == V8Custom::kNPObjectInternalFieldCount && | |
| 105 object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->IsNumber() && | |
| 106 object->GetInternalField(V8Custom::kDOMWrapperTypeIndex)->Uint32Value()
== V8ClassIndex::NPOBJECT) { | |
| 107 | |
| 108 NPObject* rv = V8Proxy::ToNativeObject<NPObject>(V8ClassIndex::NPOBJECT,
object); | |
| 109 NPN_RetainObject(rv); | |
| 110 return rv; | |
| 111 } | |
| 112 | |
| 113 V8NPObject* obj = reinterpret_cast<V8NPObject*>(NPN_CreateObject(npp, &V8NPO
bjectClass)); | |
| 114 obj->v8Object = v8::Persistent<v8::Object>::New(object); | |
| 115 #ifndef NDEBUG | |
| 116 V8Proxy::RegisterGlobalHandle(WebCore::NPOBJECT, obj, obj->v8Object); | |
| 117 #endif | |
| 118 obj->rootObject = root; | |
| 119 return reinterpret_cast<NPObject*>(obj); | |
| 120 } | |
| 121 | |
| 122 bool NPN_Invoke(NPP npp, NPObject *npobj, NPIdentifier methodName, | |
| 123 const NPVariant *args, uint32_t argCount, NPVariant *result) | |
| 124 { | |
| 125 if (!npobj) | |
| 126 return false; | |
| 127 | |
| 128 if (npobj->_class == npScriptObjectClass) { | |
| 129 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 130 | |
| 131 PrivateIdentifier *identifier = static_cast<PrivateIdentifier*>(methodNa
me); | |
| 132 if (!identifier->isString) | |
| 133 return false; | |
| 134 | |
| 135 v8::HandleScope handleScope; | |
| 136 // FIXME: should use the plugin's owner frame as the security context | |
| 137 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 138 if (context.IsEmpty()) | |
| 139 return false; | |
| 140 | |
| 141 v8::Context::Scope scope(context); | |
| 142 | |
| 143 // Special case the "eval" method. | |
| 144 if (methodName == NPN_GetStringIdentifier("eval")) { | |
| 145 if (argCount != 1) | |
| 146 return false; | |
| 147 if (args[0].type != NPVariantType_String) | |
| 148 return false; | |
| 149 return NPN_Evaluate(npp, npobj, const_cast<NPString*>(&args[0].value.s
tringValue), result); | |
| 150 } | |
| 151 | |
| 152 v8::Handle<v8::Value> funcObj = object->v8Object->Get(v8::String::New(id
entifier->value.string)); | |
| 153 if (funcObj.IsEmpty() || funcObj->IsNull()) { | |
| 154 NULL_TO_NPVARIANT(*result); | |
| 155 return false; | |
| 156 } | |
| 157 if (funcObj->IsUndefined()) { | |
| 158 VOID_TO_NPVARIANT(*result); | |
| 159 return false; | |
| 160 } | |
| 161 | |
| 162 V8Proxy* proxy = toV8Proxy(npobj); | |
| 163 ASSERT(proxy); // must not be null | |
| 164 | |
| 165 // FIXME: fix variable naming | |
| 166 // Call the function object | |
| 167 v8::Handle<v8::Function> func = v8::Handle<v8::Function>::Cast(funcObj); | |
| 168 // Create list of args to pass to v8 | |
| 169 v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, npobj)
; | |
| 170 v8::Local<v8::Value> resultObj = proxy->CallFunction(func, object->v8Obj
ect, argCount, argv); | |
| 171 delete[] argv; | |
| 172 | |
| 173 // If we had an error, return false. The spec is a little unclear here,
but | |
| 174 // says "Returns true if the method was successfully invoked". If we ge
t an | |
| 175 // error return value, was that successfully invoked? | |
| 176 if (resultObj.IsEmpty()) | |
| 177 return false; | |
| 178 | |
| 179 // Convert the result back to an NPVariant | |
| 180 convertV8ObjectToNPVariant(resultObj, npobj, result); | |
| 181 return true; | |
| 182 } | |
| 183 | |
| 184 if (npobj->_class->invoke) | |
| 185 return npobj->_class->invoke(npobj, methodName, args, argCount, result); | |
| 186 | |
| 187 VOID_TO_NPVARIANT(*result); | |
| 188 return true; | |
| 189 } | |
| 190 | |
| 191 // FIXME: Fix it same as NPN_Invoke (HandleScope and such) | |
| 192 bool NPN_InvokeDefault(NPP npp, NPObject *npobj, const NPVariant *args, | |
| 193 uint32_t argCount, NPVariant *result) | |
| 194 { | |
| 195 if (!npobj) | |
| 196 return false; | |
| 197 | |
| 198 if (npobj->_class == npScriptObjectClass) { | |
| 199 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 200 | |
| 201 VOID_TO_NPVARIANT(*result); | |
| 202 | |
| 203 v8::HandleScope handleScope; | |
| 204 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 205 if (context.IsEmpty()) | |
| 206 return false; | |
| 207 | |
| 208 v8::Context::Scope scope(context); | |
| 209 | |
| 210 // Lookup the function object | |
| 211 v8::Handle<v8::Object> funcObj(object->v8Object); | |
| 212 if (!funcObj->IsFunction()) | |
| 213 return false; | |
| 214 | |
| 215 // Call the function object | |
| 216 v8::Local<v8::Value> resultObj; | |
| 217 v8::Handle<v8::Function> func(v8::Function::Cast(*funcObj)); | |
| 218 if (!func->IsNull()) { | |
| 219 V8Proxy* proxy = toV8Proxy(npobj); | |
| 220 ASSERT(proxy); | |
| 221 | |
| 222 // Create list of args to pass to v8 | |
| 223 v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, np
obj); | |
| 224 resultObj = proxy->CallFunction(func, funcObj, argCount, argv); | |
| 225 delete[] argv; | |
| 226 } | |
| 227 | |
| 228 // If we had an error, return false. The spec is a little unclear here,
but | |
| 229 // says "Returns true if the method was successfully invoked". If we ge
t an | |
| 230 // error return value, was that successfully invoked? | |
| 231 if (resultObj.IsEmpty()) | |
| 232 return false; | |
| 233 | |
| 234 // Convert the result back to an NPVariant. | |
| 235 convertV8ObjectToNPVariant(resultObj, npobj, result); | |
| 236 return true; | |
| 237 } | |
| 238 | |
| 239 if (npobj->_class->invokeDefault) | |
| 240 return npobj->_class->invokeDefault(npobj, args, argCount, result); | |
| 241 | |
| 242 VOID_TO_NPVARIANT(*result); | |
| 243 return true; | |
| 244 } | |
| 245 | |
| 246 bool NPN_Evaluate(NPP npp, NPObject *npobj, NPString *npscript, NPVariant *resul
t) | |
| 247 { | |
| 248 bool popupsAllowed = WebCore::ChromiumBridge::popupsAllowed(npp); | |
| 249 return NPN_EvaluateHelper(npp, popupsAllowed, npobj, npscript, result); | |
| 250 } | |
| 251 | |
| 252 bool NPN_EvaluateHelper(NPP npp, bool popupsAllowed, NPObject* npobj, NPString*
npscript, NPVariant *result) | |
| 253 { | |
| 254 VOID_TO_NPVARIANT(*result); | |
| 255 if (!npobj) | |
| 256 return false; | |
| 257 | |
| 258 if (npobj->_class != npScriptObjectClass) | |
| 259 return false; | |
| 260 | |
| 261 v8::HandleScope handleScope; | |
| 262 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 263 if (context.IsEmpty()) | |
| 264 return false; | |
| 265 | |
| 266 V8Proxy* proxy = toV8Proxy(npobj); | |
| 267 ASSERT(proxy); | |
| 268 | |
| 269 v8::Context::Scope scope(context); | |
| 270 | |
| 271 WebCore::String filename; | |
| 272 if (!popupsAllowed) | |
| 273 filename = "npscript"; | |
| 274 | |
| 275 // Convert UTF-8 stream to WebCore::String. | |
| 276 WebCore::String script = WebCore::String::fromUTF8(npscript->UTF8Characters,
npscript->UTF8Length); | |
| 277 v8::Local<v8::Value> v8result = proxy->evaluate(WebCore::ScriptSourceCode(sc
ript, WebCore::KURL(filename)), 0); | |
| 278 | |
| 279 // If we had an error, return false. | |
| 280 if (v8result.IsEmpty()) | |
| 281 return false; | |
| 282 | |
| 283 convertV8ObjectToNPVariant(v8result, npobj, result); | |
| 284 return true; | |
| 285 } | |
| 286 | |
| 287 bool NPN_GetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, NPVari
ant *result) | |
| 288 { | |
| 289 if (!npobj) | |
| 290 return false; | |
| 291 | |
| 292 if (npobj->_class == npScriptObjectClass) { | |
| 293 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 294 | |
| 295 v8::HandleScope handleScope; | |
| 296 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 297 if (context.IsEmpty()) | |
| 298 return false; | |
| 299 | |
| 300 v8::Context::Scope scope(context); | |
| 301 | |
| 302 v8::Handle<v8::Object> obj(object->v8Object); | |
| 303 v8::Local<v8::Value> v8result = obj->Get(NPIdentifierToV8Identifier(prop
ertyName)); | |
| 304 | |
| 305 convertV8ObjectToNPVariant(v8result, npobj, result); | |
| 306 return true; | |
| 307 } | |
| 308 | |
| 309 if (npobj->_class->hasProperty && npobj->_class->getProperty) { | |
| 310 if (npobj->_class->hasProperty(npobj, propertyName)) | |
| 311 return npobj->_class->getProperty(npobj, propertyName, result); | |
| 312 } | |
| 313 | |
| 314 VOID_TO_NPVARIANT(*result); | |
| 315 return false; | |
| 316 } | |
| 317 | |
| 318 bool NPN_SetProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName, const
NPVariant *value) | |
| 319 { | |
| 320 if (!npobj) | |
| 321 return false; | |
| 322 | |
| 323 if (npobj->_class == npScriptObjectClass) { | |
| 324 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 325 | |
| 326 v8::HandleScope handleScope; | |
| 327 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 328 if (context.IsEmpty()) | |
| 329 return false; | |
| 330 | |
| 331 v8::Context::Scope scope(context); | |
| 332 | |
| 333 v8::Handle<v8::Object> obj(object->v8Object); | |
| 334 obj->Set(NPIdentifierToV8Identifier(propertyName), | |
| 335 convertNPVariantToV8Object(value, object->rootObject->frame()->
script()->windowScriptNPObject())); | |
| 336 return true; | |
| 337 } | |
| 338 | |
| 339 if (npobj->_class->setProperty) | |
| 340 return npobj->_class->setProperty(npobj, propertyName, value); | |
| 341 | |
| 342 return false; | |
| 343 } | |
| 344 | |
| 345 bool NPN_RemoveProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName) | |
| 346 { | |
| 347 if (!npobj) | |
| 348 return false; | |
| 349 if (npobj->_class != npScriptObjectClass) | |
| 350 return false; | |
| 351 | |
| 352 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 353 | |
| 354 v8::HandleScope handleScope; | |
| 355 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 356 if (context.IsEmpty()) | |
| 357 return false; | |
| 358 v8::Context::Scope scope(context); | |
| 359 | |
| 360 v8::Handle<v8::Object> obj(object->v8Object); | |
| 361 // FIXME(mbelshe) - verify that setting to undefined is right. | |
| 362 obj->Set(NPIdentifierToV8Identifier(propertyName), v8::Undefined()); | |
| 363 return true; | |
| 364 } | |
| 365 | |
| 366 bool NPN_HasProperty(NPP npp, NPObject *npobj, NPIdentifier propertyName) | |
| 367 { | |
| 368 if (!npobj) | |
| 369 return false; | |
| 370 | |
| 371 if (npobj->_class == npScriptObjectClass) { | |
| 372 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 373 | |
| 374 v8::HandleScope handleScope; | |
| 375 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 376 if (context.IsEmpty()) | |
| 377 return false; | |
| 378 v8::Context::Scope scope(context); | |
| 379 | |
| 380 v8::Handle<v8::Object> obj(object->v8Object); | |
| 381 return obj->Has(NPIdentifierToV8Identifier(propertyName)); | |
| 382 } | |
| 383 | |
| 384 if (npobj->_class->hasProperty) | |
| 385 return npobj->_class->hasProperty(npobj, propertyName); | |
| 386 return false; | |
| 387 } | |
| 388 | |
| 389 bool NPN_HasMethod(NPP npp, NPObject *npobj, NPIdentifier methodName) | |
| 390 { | |
| 391 if (!npobj) | |
| 392 return false; | |
| 393 | |
| 394 if (npobj->_class == npScriptObjectClass) { | |
| 395 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 396 | |
| 397 v8::HandleScope handleScope; | |
| 398 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 399 if (context.IsEmpty()) | |
| 400 return false; | |
| 401 v8::Context::Scope scope(context); | |
| 402 | |
| 403 v8::Handle<v8::Object> obj(object->v8Object); | |
| 404 v8::Handle<v8::Value> prop = obj->Get(NPIdentifierToV8Identifier(methodN
ame)); | |
| 405 return prop->IsFunction(); | |
| 406 } | |
| 407 | |
| 408 if (npobj->_class->hasMethod) | |
| 409 return npobj->_class->hasMethod(npobj, methodName); | |
| 410 return false; | |
| 411 } | |
| 412 | |
| 413 void NPN_SetException(NPObject *npobj, const NPUTF8 *message) | |
| 414 { | |
| 415 if (npobj->_class != npScriptObjectClass) | |
| 416 return; | |
| 417 v8::HandleScope handleScope; | |
| 418 v8::Handle<v8::Context> context = toV8Context(0, npobj); | |
| 419 if (context.IsEmpty()) | |
| 420 return; | |
| 421 | |
| 422 v8::Context::Scope scope(context); | |
| 423 V8Proxy::ThrowError(V8Proxy::GENERAL_ERROR, message); | |
| 424 } | |
| 425 | |
| 426 bool NPN_Enumerate(NPP npp, NPObject *npobj, NPIdentifier **identifier, uint32_t
*count) | |
| 427 { | |
| 428 if (!npobj) | |
| 429 return false; | |
| 430 | |
| 431 if (npobj->_class == npScriptObjectClass) { | |
| 432 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 433 | |
| 434 v8::HandleScope handleScope; | |
| 435 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 436 if (context.IsEmpty()) | |
| 437 return false; | |
| 438 v8::Context::Scope scope(context); | |
| 439 | |
| 440 v8::Handle<v8::Object> obj(object->v8Object); | |
| 441 | |
| 442 // FIXME(fqian): http://b/issue?id=1210340: Use a v8::Object::Keys() met
hod | |
| 443 // when it exists, instead of evaluating javascript. | |
| 444 | |
| 445 // FIXME(mpcomplete): figure out how to cache this helper function. | |
| 446 // Run a helper function that collects the properties on the object into | |
| 447 // an array. | |
| 448 const char enumeratorCode[] = | |
| 449 "(function (obj) {" | |
| 450 " var props = [];" | |
| 451 " for (var prop in obj) {" | |
| 452 " props[props.length] = prop;" | |
| 453 " }" | |
| 454 " return props;" | |
| 455 "});"; | |
| 456 v8::Handle<v8::String> source = v8::String::New(enumeratorCode); | |
| 457 v8::Handle<v8::Script> script = v8::Script::Compile(source, 0); | |
| 458 v8::Handle<v8::Value> enumeratorObj = script->Run(); | |
| 459 v8::Handle<v8::Function> enumerator = v8::Handle<v8::Function>::Cast(enu
meratorObj); | |
| 460 v8::Handle<v8::Value> argv[] = { obj }; | |
| 461 v8::Local<v8::Value> propsObj = enumerator->Call(v8::Handle<v8::Object>:
:Cast(enumeratorObj), ARRAYSIZE_UNSAFE(argv), argv); | |
| 462 if (propsObj.IsEmpty()) | |
| 463 return false; | |
| 464 | |
| 465 // Convert the results into an array of NPIdentifiers. | |
| 466 v8::Handle<v8::Array> props = v8::Handle<v8::Array>::Cast(propsObj); | |
| 467 *count = props->Length(); | |
| 468 *identifier = static_cast<NPIdentifier*>(malloc(sizeof(NPIdentifier*) *
*count)); | |
| 469 for (uint32_t i = 0; i < *count; ++i) { | |
| 470 v8::Local<v8::Value> name = props->Get(v8::Integer::New(i)); | |
| 471 (*identifier)[i] = getStringIdentifier(v8::Local<v8::String>::Cast(n
ame)); | |
| 472 } | |
| 473 return true; | |
| 474 } | |
| 475 | |
| 476 if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(npobj->_class) && npobj->_class->enumer
ate) | |
| 477 return npobj->_class->enumerate(npobj, identifier, count); | |
| 478 | |
| 479 return false; | |
| 480 } | |
| 481 | |
| 482 bool NPN_Construct(NPP npp, NPObject* npobj, const NPVariant* args, uint32_t arg
Count, NPVariant* result) | |
| 483 { | |
| 484 if (!npobj) | |
| 485 return false; | |
| 486 | |
| 487 if (npobj->_class == npScriptObjectClass) { | |
| 488 V8NPObject *object = reinterpret_cast<V8NPObject*>(npobj); | |
| 489 | |
| 490 v8::HandleScope handleScope; | |
| 491 v8::Handle<v8::Context> context = toV8Context(npp, npobj); | |
| 492 if (context.IsEmpty()) | |
| 493 return false; | |
| 494 v8::Context::Scope scope(context); | |
| 495 | |
| 496 // Lookup the constructor function. | |
| 497 v8::Handle<v8::Object> ctorObj(object->v8Object); | |
| 498 if (!ctorObj->IsFunction()) | |
| 499 return false; | |
| 500 | |
| 501 // Call the constructor. | |
| 502 v8::Local<v8::Value> resultObj; | |
| 503 v8::Handle<v8::Function> ctor(v8::Function::Cast(*ctorObj)); | |
| 504 if (!ctor->IsNull()) { | |
| 505 V8Proxy* proxy = toV8Proxy(npobj); | |
| 506 ASSERT(proxy); | |
| 507 | |
| 508 // Create list of args to pass to v8. | |
| 509 v8::Handle<v8::Value>* argv = listFromVariantArgs(args, argCount, np
obj); | |
| 510 resultObj = proxy->NewInstance(ctor, argCount, argv); | |
| 511 delete[] argv; | |
| 512 } | |
| 513 | |
| 514 // If we had an error return false. | |
| 515 if (resultObj.IsEmpty()) | |
| 516 return false; | |
| 517 | |
| 518 // Convert the result back to an NPVariant. | |
| 519 convertV8ObjectToNPVariant(resultObj, npobj, result); | |
| 520 return true; | |
| 521 } | |
| 522 | |
| 523 if (NP_CLASS_STRUCT_VERSION_HAS_CTOR(npobj->_class) && npobj->_class->constr
uct) | |
| 524 return npobj->_class->construct(npobj, args, argCount, result); | |
| 525 | |
| 526 return false; | |
| 527 } | |
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