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1 /* | |
2 * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. 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 | |
31 #include "bindings/core/v8/V8NPObject.h" | |
32 | |
33 #include "bindings/core/v8/NPV8Object.h" | |
34 #include "bindings/core/v8/V8Binding.h" | |
35 #include "bindings/core/v8/V8GlobalValueMap.h" | |
36 #include "bindings/core/v8/V8HTMLEmbedElement.h" | |
37 #include "bindings/core/v8/V8HTMLObjectElement.h" | |
38 #include "bindings/core/v8/V8NPUtils.h" | |
39 #include "bindings/core/v8/V8ObjectConstructor.h" | |
40 #include "bindings/core/v8/npruntime_impl.h" | |
41 #include "bindings/core/v8/npruntime_priv.h" | |
42 #include "core/html/HTMLPlugInElement.h" | |
43 #include "v8-util.h" | |
44 #include "wtf/OwnPtr.h" | |
45 | |
46 namespace blink { | |
47 | |
48 enum InvokeFunctionType { | |
49 InvokeMethod = 1, | |
50 InvokeConstruct = 2, | |
51 InvokeDefault = 3 | |
52 }; | |
53 | |
54 struct IdentifierRep { | |
55 int number() const { return m_isString ? 0 : m_value.m_number; } | |
56 const char* string() const { return m_isString ? m_value.m_string : 0; } | |
57 | |
58 union { | |
59 const char* m_string; | |
60 int m_number; | |
61 } m_value; | |
62 bool m_isString; | |
63 }; | |
64 | |
65 // FIXME: need comments. | |
66 // Params: holder could be HTMLEmbedElement or NPObject | |
67 static void npObjectInvokeImpl(const v8::FunctionCallbackInfo<v8::Value>& info,
InvokeFunctionType functionId) | |
68 { | |
69 NPObject* npObject; | |
70 v8::Isolate* isolate = info.GetIsolate(); | |
71 | |
72 // These two types are subtypes of HTMLPlugInElement. | |
73 HTMLPlugInElement* element = V8HTMLEmbedElement::toImplWithTypeCheck(isolate
, info.Holder()); | |
74 if (!element) | |
75 element = V8HTMLObjectElement::toImplWithTypeCheck(isolate, info.Holder(
)); | |
76 if (element) { | |
77 if (RefPtr<SharedPersistent<v8::Object>> wrapper = element->pluginWrappe
r()) { | |
78 v8::HandleScope handleScope(isolate); | |
79 npObject = v8ObjectToNPObject(wrapper->newLocal(isolate)); | |
80 } else { | |
81 npObject = 0; | |
82 } | |
83 } else { | |
84 // The holder object is not a subtype of HTMLPlugInElement, it must be a
n NPObject which has three | |
85 // internal fields. | |
86 if (info.Holder()->InternalFieldCount() != npObjectInternalFieldCount) { | |
87 V8ThrowException::throwReferenceError(info.GetIsolate(), "NPMethod c
alled on non-NPObject"); | |
88 return; | |
89 } | |
90 | |
91 npObject = v8ObjectToNPObject(info.Holder()); | |
92 } | |
93 | |
94 // Verify that our wrapper wasn't using a NPObject which has already been de
leted. | |
95 if (!npObject || !_NPN_IsAlive(npObject)) { | |
96 V8ThrowException::throwReferenceError(isolate, "NPObject deleted"); | |
97 return; | |
98 } | |
99 | |
100 // Wrap up parameters. | |
101 int numArgs = info.Length(); | |
102 OwnPtr<NPVariant[]> npArgs = adoptArrayPtr(new NPVariant[numArgs]); | |
103 | |
104 for (int i = 0; i < numArgs; i++) | |
105 convertV8ObjectToNPVariant(isolate, info[i], npObject, &npArgs[i]); | |
106 | |
107 NPVariant result; | |
108 VOID_TO_NPVARIANT(result); | |
109 | |
110 bool retval = true; | |
111 switch (functionId) { | |
112 case InvokeMethod: | |
113 if (npObject->_class->invoke) { | |
114 v8::Local<v8::String> functionName = v8::Local<v8::String>::Cast(inf
o.Data()); | |
115 NPIdentifier identifier = getStringIdentifier(functionName); | |
116 retval = npObject->_class->invoke(npObject, identifier, npArgs.get()
, numArgs, &result); | |
117 } | |
118 break; | |
119 case InvokeConstruct: | |
120 if (npObject->_class->construct) | |
121 retval = npObject->_class->construct(npObject, npArgs.get(), numArgs
, &result); | |
122 break; | |
123 case InvokeDefault: | |
124 if (npObject->_class->invokeDefault) | |
125 retval = npObject->_class->invokeDefault(npObject, npArgs.get(), num
Args, &result); | |
126 break; | |
127 default: | |
128 break; | |
129 } | |
130 | |
131 if (!retval) | |
132 V8ThrowException::throwGeneralError(isolate, "Error calling method on NP
Object."); | |
133 | |
134 for (int i = 0; i < numArgs; i++) | |
135 _NPN_ReleaseVariantValue(&npArgs[i]); | |
136 | |
137 // Unwrap return values. | |
138 v8::Local<v8::Value> returnValue; | |
139 if (_NPN_IsAlive(npObject)) | |
140 returnValue = convertNPVariantToV8Object(isolate, &result, npObject); | |
141 _NPN_ReleaseVariantValue(&result); | |
142 | |
143 v8SetReturnValue(info, returnValue); | |
144 } | |
145 | |
146 | |
147 void npObjectMethodHandler(const v8::FunctionCallbackInfo<v8::Value>& info) | |
148 { | |
149 return npObjectInvokeImpl(info, InvokeMethod); | |
150 } | |
151 | |
152 | |
153 void npObjectInvokeDefaultHandler(const v8::FunctionCallbackInfo<v8::Value>& inf
o) | |
154 { | |
155 if (info.IsConstructCall()) { | |
156 npObjectInvokeImpl(info, InvokeConstruct); | |
157 return; | |
158 } | |
159 | |
160 npObjectInvokeImpl(info, InvokeDefault); | |
161 } | |
162 | |
163 class V8TemplateMapTraits : public V8GlobalValueMapTraits<PrivateIdentifier*, v8
::FunctionTemplate, v8::kWeakWithParameter> { | |
164 public: | |
165 typedef v8::GlobalValueMap<PrivateIdentifier*, v8::FunctionTemplate, V8Templ
ateMapTraits> MapType; | |
166 typedef PrivateIdentifier WeakCallbackDataType; | |
167 | |
168 static WeakCallbackDataType* WeakCallbackParameter(MapType* map, PrivateIden
tifier* key, const v8::Local<v8::FunctionTemplate>& value) | |
169 { | |
170 return key; | |
171 } | |
172 | |
173 static void DisposeCallbackData(WeakCallbackDataType* callbackData) { } | |
174 | |
175 static MapType* MapFromWeakCallbackInfo( | |
176 const v8::WeakCallbackInfo<WeakCallbackDataType>&); | |
177 | |
178 static PrivateIdentifier* KeyFromWeakCallbackInfo( | |
179 const v8::WeakCallbackInfo<WeakCallbackDataType>& data) | |
180 { | |
181 return data.GetParameter(); | |
182 } | |
183 | |
184 // Dispose traits: | |
185 static void OnWeakCallback(const v8::WeakCallbackInfo<WeakCallbackDataType>&
data) { } | |
186 static void Dispose(v8::Isolate* isolate, v8::Global<v8::FunctionTemplate> v
alue, PrivateIdentifier* key) { } | |
187 static void DisposeWeak(const v8::WeakCallbackInfo<WeakCallbackDataType>& da
ta) { } | |
188 }; | |
189 | |
190 | |
191 class V8NPTemplateMap { | |
192 public: | |
193 // NPIdentifier is PrivateIdentifier*. | |
194 typedef v8::GlobalValueMap<PrivateIdentifier*, v8::FunctionTemplate, V8Templ
ateMapTraits> MapType; | |
195 | |
196 v8::Local<v8::FunctionTemplate> get(PrivateIdentifier* key) | |
197 { | |
198 return m_map.Get(key); | |
199 } | |
200 | |
201 void set(PrivateIdentifier* key, v8::Local<v8::FunctionTemplate> handle) | |
202 { | |
203 ASSERT(!m_map.Contains(key)); | |
204 m_map.Set(key, handle); | |
205 } | |
206 | |
207 static V8NPTemplateMap& sharedInstance(v8::Isolate* isolate) | |
208 { | |
209 DEFINE_STATIC_LOCAL(V8NPTemplateMap, map, (isolate)); | |
210 ASSERT(isolate == map.m_map.GetIsolate()); | |
211 return map; | |
212 } | |
213 | |
214 friend class V8TemplateMapTraits; | |
215 | |
216 private: | |
217 explicit V8NPTemplateMap(v8::Isolate* isolate) | |
218 : m_map(isolate) | |
219 { | |
220 } | |
221 | |
222 MapType m_map; | |
223 }; | |
224 | |
225 V8TemplateMapTraits::MapType* V8TemplateMapTraits::MapFromWeakCallbackInfo(const
v8::WeakCallbackInfo<WeakCallbackDataType>& data) | |
226 { | |
227 return &V8NPTemplateMap::sharedInstance(data.GetIsolate()).m_map; | |
228 } | |
229 | |
230 | |
231 static v8::Local<v8::Value> npObjectGetProperty(v8::Isolate* isolate, v8::Local<
v8::Object> self, NPIdentifier identifier, v8::Local<v8::Value> key) | |
232 { | |
233 NPObject* npObject = v8ObjectToNPObject(self); | |
234 | |
235 // Verify that our wrapper wasn't using a NPObject which | |
236 // has already been deleted. | |
237 if (!npObject || !_NPN_IsAlive(npObject)) | |
238 return V8ThrowException::throwReferenceError(isolate, "NPObject deleted"
); | |
239 | |
240 | |
241 if (npObject->_class->hasProperty && npObject->_class->getProperty && npObje
ct->_class->hasProperty(npObject, identifier)) { | |
242 if (!_NPN_IsAlive(npObject)) | |
243 return V8ThrowException::throwReferenceError(isolate, "NPObject dele
ted"); | |
244 | |
245 NPVariant result; | |
246 VOID_TO_NPVARIANT(result); | |
247 if (!npObject->_class->getProperty(npObject, identifier, &result)) | |
248 return v8Undefined(); | |
249 | |
250 v8::Local<v8::Value> returnValue; | |
251 if (_NPN_IsAlive(npObject)) | |
252 returnValue = convertNPVariantToV8Object(isolate, &result, npObject)
; | |
253 _NPN_ReleaseVariantValue(&result); | |
254 return returnValue; | |
255 | |
256 } | |
257 | |
258 if (!_NPN_IsAlive(npObject)) | |
259 return V8ThrowException::throwReferenceError(isolate, "NPObject deleted"
); | |
260 | |
261 if (key->IsString() && npObject->_class->hasMethod && npObject->_class->hasM
ethod(npObject, identifier)) { | |
262 if (!_NPN_IsAlive(npObject)) | |
263 return V8ThrowException::throwReferenceError(isolate, "NPObject dele
ted"); | |
264 | |
265 PrivateIdentifier* id = static_cast<PrivateIdentifier*>(identifier); | |
266 v8::Local<v8::FunctionTemplate> functionTemplate = V8NPTemplateMap::shar
edInstance(isolate).get(id); | |
267 // Cache templates using identifier as the key. | |
268 if (functionTemplate.IsEmpty()) { | |
269 // Create a new template. | |
270 functionTemplate = v8::FunctionTemplate::New(isolate); | |
271 functionTemplate->SetCallHandler(npObjectMethodHandler, key); | |
272 V8NPTemplateMap::sharedInstance(isolate).set(id, functionTemplate); | |
273 } | |
274 v8::Local<v8::Function> v8Function; | |
275 if (!functionTemplate->GetFunction(isolate->GetCurrentContext()).ToLocal
(&v8Function)) | |
276 return v8Undefined(); | |
277 v8Function->SetName(v8::Local<v8::String>::Cast(key)); | |
278 return v8Function; | |
279 } | |
280 | |
281 return v8Undefined(); | |
282 } | |
283 | |
284 void npObjectNamedPropertyGetter(v8::Local<v8::String> name, const v8::PropertyC
allbackInfo<v8::Value>& info) | |
285 { | |
286 NPIdentifier identifier = getStringIdentifier(name); | |
287 v8SetReturnValue(info, npObjectGetProperty(info.GetIsolate(), info.Holder(),
identifier, name)); | |
288 } | |
289 | |
290 void npObjectIndexedPropertyGetter(uint32_t index, const v8::PropertyCallbackInf
o<v8::Value>& info) | |
291 { | |
292 NPIdentifier identifier = _NPN_GetIntIdentifier(index); | |
293 v8SetReturnValue(info, npObjectGetProperty(info.GetIsolate(), info.Holder(),
identifier, v8::Number::New(info.GetIsolate(), index))); | |
294 } | |
295 | |
296 void npObjectGetNamedProperty(v8::Local<v8::Object> self, v8::Local<v8::String>
name, const v8::PropertyCallbackInfo<v8::Value>& info) | |
297 { | |
298 NPIdentifier identifier = getStringIdentifier(name); | |
299 v8SetReturnValue(info, npObjectGetProperty(info.GetIsolate(), self, identifi
er, name)); | |
300 } | |
301 | |
302 void npObjectGetIndexedProperty(v8::Local<v8::Object> self, uint32_t index, cons
t v8::PropertyCallbackInfo<v8::Value>& info) | |
303 { | |
304 NPIdentifier identifier = _NPN_GetIntIdentifier(index); | |
305 v8SetReturnValue(info, npObjectGetProperty(info.GetIsolate(), self, identifi
er, v8::Number::New(info.GetIsolate(), index))); | |
306 } | |
307 | |
308 void npObjectQueryProperty(v8::Local<v8::String> name, const v8::PropertyCallbac
kInfo<v8::Integer>& info) | |
309 { | |
310 NPIdentifier identifier = getStringIdentifier(name); | |
311 if (npObjectGetProperty(info.GetIsolate(), info.Holder(), identifier, name).
IsEmpty()) | |
312 return; | |
313 v8SetReturnValueInt(info, 0); | |
314 } | |
315 | |
316 static v8::Local<v8::Value> npObjectSetProperty(v8::Local<v8::Object> self, NPId
entifier identifier, v8::Local<v8::Value> value, v8::Isolate* isolate) | |
317 { | |
318 NPObject* npObject = v8ObjectToNPObject(self); | |
319 | |
320 // Verify that our wrapper wasn't using a NPObject which has already been de
leted. | |
321 if (!npObject || !_NPN_IsAlive(npObject)) { | |
322 V8ThrowException::throwReferenceError(isolate, "NPObject deleted"); | |
323 return value; // Intercepted, but an exception was thrown. | |
324 } | |
325 | |
326 if (npObject->_class->hasProperty && npObject->_class->setProperty && npObje
ct->_class->hasProperty(npObject, identifier)) { | |
327 if (!_NPN_IsAlive(npObject)) | |
328 return V8ThrowException::throwReferenceError(isolate, "NPObject dele
ted"); | |
329 | |
330 NPVariant npValue; | |
331 VOID_TO_NPVARIANT(npValue); | |
332 convertV8ObjectToNPVariant(isolate, value, npObject, &npValue); | |
333 bool success = npObject->_class->setProperty(npObject, identifier, &npVa
lue); | |
334 _NPN_ReleaseVariantValue(&npValue); | |
335 if (success) | |
336 return value; // Intercept the call. | |
337 } | |
338 return v8Undefined(); | |
339 } | |
340 | |
341 | |
342 void npObjectNamedPropertySetter(v8::Local<v8::String> name, v8::Local<v8::Value
> value, const v8::PropertyCallbackInfo<v8::Value>& info) | |
343 { | |
344 NPIdentifier identifier = getStringIdentifier(name); | |
345 v8SetReturnValue(info, npObjectSetProperty(info.Holder(), identifier, value,
info.GetIsolate())); | |
346 } | |
347 | |
348 | |
349 void npObjectIndexedPropertySetter(uint32_t index, v8::Local<v8::Value> value, c
onst v8::PropertyCallbackInfo<v8::Value>& info) | |
350 { | |
351 NPIdentifier identifier = _NPN_GetIntIdentifier(index); | |
352 v8SetReturnValue(info, npObjectSetProperty(info.Holder(), identifier, value,
info.GetIsolate())); | |
353 } | |
354 | |
355 void npObjectSetNamedProperty(v8::Local<v8::Object> self, v8::Local<v8::String>
name, v8::Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& inf
o) | |
356 { | |
357 NPIdentifier identifier = getStringIdentifier(name); | |
358 v8SetReturnValue(info, npObjectSetProperty(self, identifier, value, info.Get
Isolate())); | |
359 } | |
360 | |
361 void npObjectSetIndexedProperty(v8::Local<v8::Object> self, uint32_t index, v8::
Local<v8::Value> value, const v8::PropertyCallbackInfo<v8::Value>& info) | |
362 { | |
363 NPIdentifier identifier = _NPN_GetIntIdentifier(index); | |
364 v8SetReturnValue(info, npObjectSetProperty(self, identifier, value, info.Get
Isolate())); | |
365 } | |
366 | |
367 void npObjectPropertyEnumerator(const v8::PropertyCallbackInfo<v8::Array>& info,
bool namedProperty) | |
368 { | |
369 NPObject* npObject = v8ObjectToNPObject(info.Holder()); | |
370 | |
371 // Verify that our wrapper wasn't using a NPObject which | |
372 // has already been deleted. | |
373 if (!npObject || !_NPN_IsAlive(npObject)) { | |
374 V8ThrowException::throwReferenceError(info.GetIsolate(), "NPObject delet
ed"); | |
375 return; | |
376 } | |
377 | |
378 if (NP_CLASS_STRUCT_VERSION_HAS_ENUM(npObject->_class) && npObject->_class->
enumerate) { | |
379 uint32_t count; | |
380 NPIdentifier* identifiers; | |
381 if (npObject->_class->enumerate(npObject, &identifiers, &count)) { | |
382 uint32_t propertiesCount = 0; | |
383 for (uint32_t i = 0; i < count; ++i) { | |
384 IdentifierRep* identifier = static_cast<IdentifierRep*>(identifi
ers[i]); | |
385 if (namedProperty == identifier->m_isString) | |
386 ++propertiesCount; | |
387 } | |
388 v8::Local<v8::Array> properties = v8::Array::New(info.GetIsolate(),
propertiesCount); | |
389 for (uint32_t i = 0, propertyIndex = 0; i < count; ++i) { | |
390 IdentifierRep* identifier = static_cast<IdentifierRep*>(identifi
ers[i]); | |
391 if (namedProperty == identifier->m_isString) { | |
392 ASSERT(propertyIndex < propertiesCount); | |
393 v8::Local<v8::Value> value; | |
394 if (namedProperty) | |
395 value = v8AtomicString(info.GetIsolate(), identifier->st
ring()); | |
396 else | |
397 value = v8::Integer::New(info.GetIsolate(), identifier->
number()); | |
398 v8::Local<v8::Number> index = v8::Integer::New(info.GetIsola
te(), propertyIndex++); | |
399 if (!v8CallBoolean(properties->Set(info.GetIsolate()->GetCur
rentContext(), index, value))) | |
400 return; | |
401 } | |
402 } | |
403 | |
404 v8SetReturnValue(info, properties); | |
405 return; | |
406 } | |
407 } | |
408 } | |
409 | |
410 void npObjectNamedPropertyEnumerator(const v8::PropertyCallbackInfo<v8::Array>&
info) | |
411 { | |
412 npObjectPropertyEnumerator(info, true); | |
413 } | |
414 | |
415 void npObjectIndexedPropertyEnumerator(const v8::PropertyCallbackInfo<v8::Array>
& info) | |
416 { | |
417 npObjectPropertyEnumerator(info, false); | |
418 } | |
419 | |
420 static DOMWrapperMap<NPObject>& staticNPObjectMap() | |
421 { | |
422 DEFINE_STATIC_LOCAL(DOMWrapperMap<NPObject>, npObjectMap, (v8::Isolate::GetC
urrent())); | |
423 return npObjectMap; | |
424 } | |
425 | |
426 template<> | |
427 inline void DOMWrapperMap<NPObject>::PersistentValueMapTraits::Dispose(v8::Isola
te*, v8::Global<v8::Object> value, NPObject* key) | |
428 { | |
429 auto npObject = key; | |
430 ASSERT(npObject); | |
431 if (_NPN_IsAlive(npObject)) | |
432 _NPN_ReleaseObject(npObject); | |
433 } | |
434 | |
435 template<> | |
436 inline void DOMWrapperMap<NPObject>::PersistentValueMapTraits::DisposeWeak(const
v8::WeakCallbackInfo<WeakCallbackDataType>& data) | |
437 { | |
438 auto npObject = KeyFromWeakCallbackInfo(data); | |
439 ASSERT(npObject); | |
440 if (_NPN_IsAlive(npObject)) | |
441 _NPN_ReleaseObject(npObject); | |
442 } | |
443 | |
444 v8::Local<v8::Object> createV8ObjectForNPObject(v8::Isolate* isolate, NPObject*
object, NPObject* root) | |
445 { | |
446 static v8::Eternal<v8::FunctionTemplate> npObjectDesc; | |
447 | |
448 ASSERT(isolate->InContext()); | |
449 | |
450 // If this is a v8 object, just return it. | |
451 V8NPObject* v8NPObject = npObjectToV8NPObject(object); | |
452 if (v8NPObject) | |
453 return v8::Local<v8::Object>::New(isolate, v8NPObject->v8Object); | |
454 | |
455 // If we've already wrapped this object, just return it. | |
456 v8::Local<v8::Object> wrapper = staticNPObjectMap().newLocal(isolate, object
); | |
457 if (!wrapper.IsEmpty()) | |
458 return wrapper; | |
459 | |
460 // FIXME: we should create a Wrapper type as a subclass of JSObject. It has
two internal fields, field 0 is the wrapped | |
461 // pointer, and field 1 is the type. There should be an api function that re
turns unused type id. The same Wrapper type | |
462 // can be used by DOM bindings. | |
463 if (npObjectDesc.IsEmpty()) { | |
464 v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New(isolat
e); | |
465 templ->InstanceTemplate()->SetInternalFieldCount(npObjectInternalFieldCo
unt); | |
466 templ->InstanceTemplate()->SetNamedPropertyHandler(npObjectNamedProperty
Getter, npObjectNamedPropertySetter, npObjectQueryProperty, 0, npObjectNamedProp
ertyEnumerator); | |
467 templ->InstanceTemplate()->SetIndexedPropertyHandler(npObjectIndexedProp
ertyGetter, npObjectIndexedPropertySetter, 0, 0, npObjectIndexedPropertyEnumerat
or); | |
468 templ->InstanceTemplate()->SetCallAsFunctionHandler(npObjectInvokeDefaul
tHandler); | |
469 npObjectDesc.Set(isolate, templ); | |
470 } | |
471 | |
472 // FIXME: Move staticNPObjectMap() to DOMDataStore. | |
473 // Use V8DOMWrapper::createWrapper() and | |
474 // V8DOMWrapper::associateObjectWithWrapper() | |
475 // to create a wrapper object. | |
476 v8::Local<v8::Function> v8Function; | |
477 if (!npObjectDesc.Get(isolate)->GetFunction(isolate->GetCurrentContext()).To
Local(&v8Function)) | |
478 return v8::Local<v8::Object>(); | |
479 v8::Local<v8::Object> value; | |
480 if (!V8ObjectConstructor::newInstance(isolate, v8Function).ToLocal(&value)) | |
481 return v8::Local<v8::Object>(); | |
482 | |
483 V8DOMWrapper::setNativeInfo(value, npObjectTypeInfo(), npObjectToScriptWrapp
able(object)); | |
484 | |
485 // KJS retains the object as part of its wrapper (see Bindings::CInstance). | |
486 _NPN_RetainObject(object); | |
487 _NPN_RegisterObject(object, root); | |
488 | |
489 bool wrapperDidNotExist = staticNPObjectMap().set(object, npObjectTypeInfo()
, value); | |
490 ASSERT_UNUSED(wrapperDidNotExist, wrapperDidNotExist); | |
491 ASSERT(V8DOMWrapper::hasInternalFieldsSet(value)); | |
492 return value; | |
493 } | |
494 | |
495 void forgetV8ObjectForNPObject(NPObject* object) | |
496 { | |
497 v8::Isolate* isolate = v8::Isolate::GetCurrent(); | |
498 v8::HandleScope scope(isolate); | |
499 v8::Local<v8::Object> wrapper = staticNPObjectMap().newLocal(isolate, object
); | |
500 if (!wrapper.IsEmpty()) { | |
501 V8DOMWrapper::clearNativeInfo(wrapper, npObjectTypeInfo()); | |
502 staticNPObjectMap().removeAndDispose(object); | |
503 _NPN_ReleaseObject(object); | |
504 } | |
505 } | |
506 | |
507 } // namespace blink | |
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