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| 1 /* | |
| 2 * Copyright (C) 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 "config.h" | |
| 32 #include "bindings/v8/V8DOMWrapper.h" | |
| 33 | |
| 34 #include "bindings/core/v8/V8HTMLCollection.h" | |
| 35 #include "bindings/core/v8/V8HTMLDocument.h" | |
| 36 #include "bindings/core/v8/V8Window.h" | |
| 37 #include "bindings/v8/V8Binding.h" | |
| 38 #include "bindings/v8/V8ObjectConstructor.h" | |
| 39 #include "bindings/v8/V8PerContextData.h" | |
| 40 #include "bindings/v8/V8ScriptRunner.h" | |
| 41 | |
| 42 namespace WebCore { | |
| 43 | |
| 44 static v8::Local<v8::Object> wrapInShadowTemplate(v8::Local<v8::Object> wrapper,
Node* impl, v8::Isolate* isolate) | |
| 45 { | |
| 46 static int shadowTemplateKey; // This address is used for a key to look up t
he dom template. | |
| 47 V8PerIsolateData* data = V8PerIsolateData::from(isolate); | |
| 48 v8::Handle<v8::FunctionTemplate> shadowTemplate = data->existingDOMTemplate(
&shadowTemplateKey); | |
| 49 if (shadowTemplate.IsEmpty()) { | |
| 50 shadowTemplate = v8::FunctionTemplate::New(isolate); | |
| 51 if (shadowTemplate.IsEmpty()) | |
| 52 return v8::Local<v8::Object>(); | |
| 53 shadowTemplate->SetClassName(v8AtomicString(isolate, "HTMLDocument")); | |
| 54 shadowTemplate->Inherit(V8HTMLDocument::domTemplate(isolate)); | |
| 55 shadowTemplate->InstanceTemplate()->SetInternalFieldCount(V8HTMLDocument
::internalFieldCount); | |
| 56 data->setDOMTemplate(&shadowTemplateKey, shadowTemplate); | |
| 57 } | |
| 58 | |
| 59 v8::Local<v8::Function> shadowConstructor = shadowTemplate->GetFunction(); | |
| 60 if (shadowConstructor.IsEmpty()) | |
| 61 return v8::Local<v8::Object>(); | |
| 62 | |
| 63 v8::Local<v8::Object> shadow = V8ScriptRunner::instantiateObject(isolate, sh
adowConstructor); | |
| 64 if (shadow.IsEmpty()) | |
| 65 return v8::Local<v8::Object>(); | |
| 66 shadow->SetPrototype(wrapper); | |
| 67 V8DOMWrapper::setNativeInfoForHiddenWrapper(wrapper, &V8HTMLDocument::wrappe
rTypeInfo, impl); | |
| 68 return shadow; | |
| 69 } | |
| 70 | |
| 71 v8::Local<v8::Object> V8DOMWrapper::createWrapper(v8::Handle<v8::Object> creatio
nContext, const WrapperTypeInfo* type, void* impl, v8::Isolate* isolate) | |
| 72 { | |
| 73 V8WrapperInstantiationScope scope(creationContext, isolate); | |
| 74 | |
| 75 V8PerContextData* perContextData = V8PerContextData::from(scope.context()); | |
| 76 v8::Local<v8::Object> wrapper = perContextData ? perContextData->createWrapp
erFromCache(type) : V8ObjectConstructor::newInstance(isolate, type->domTemplate(
isolate)->GetFunction()); | |
| 77 | |
| 78 if (type == &V8HTMLDocument::wrapperTypeInfo && !wrapper.IsEmpty()) | |
| 79 wrapper = wrapInShadowTemplate(wrapper, static_cast<Node*>(impl), isolat
e); | |
| 80 | |
| 81 return wrapper; | |
| 82 } | |
| 83 | |
| 84 bool V8DOMWrapper::isDOMWrapper(v8::Handle<v8::Value> value) | |
| 85 { | |
| 86 if (value.IsEmpty() || !value->IsObject()) | |
| 87 return false; | |
| 88 | |
| 89 if (v8::Handle<v8::Object>::Cast(value)->InternalFieldCount() < v8DefaultWra
pperInternalFieldCount) | |
| 90 return false; | |
| 91 | |
| 92 v8::Handle<v8::Object> wrapper = v8::Handle<v8::Object>::Cast(value); | |
| 93 ASSERT(wrapper->GetAlignedPointerFromInternalField(v8DOMWrapperObjectIndex))
; | |
| 94 ASSERT(wrapper->GetAlignedPointerFromInternalField(v8DOMWrapperTypeIndex)); | |
| 95 | |
| 96 const WrapperTypeInfo* typeInfo = static_cast<const WrapperTypeInfo*>(wrappe
r->GetAlignedPointerFromInternalField(v8DOMWrapperTypeIndex)); | |
| 97 // FIXME: We should add a more strict way to check if the typeInfo is a type
Info of some DOM wrapper. | |
| 98 // Even if it's a typeInfo of Blink, it's not guaranteed that it's a typeInf
o of a DOM wrapper. | |
| 99 return typeInfo->ginEmbedder == gin::kEmbedderBlink; | |
| 100 } | |
| 101 | |
| 102 } // namespace WebCore | |
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Chromium Code Reviews
Issue 351423002:
Moved files under Source/bindings/v8 to Source/bindings/core/v8. (Closed)
Base URL: svn://svn.chromium.org/blink/trunk