| /* |
| * Copyright (C) 2009 Google Inc. All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions |
| * are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * |
| * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS'' |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, |
| * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR |
| * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS |
| * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
| * THE POSSIBILITY OF SUCH DAMAGE. |
| */ |
| |
| #include "config.h" |
| #include "bindings/v8/V8PerIsolateData.h" |
| |
| #include "bindings/v8/DOMDataStore.h" |
| #include "bindings/v8/ScriptGCEvent.h" |
| #include "bindings/v8/ScriptProfiler.h" |
| #include "bindings/v8/V8Binding.h" |
| #include "bindings/v8/V8HiddenValue.h" |
| #include "bindings/v8/V8ObjectConstructor.h" |
| #include "bindings/v8/V8PerContextData.h" |
| #include "bindings/v8/V8ScriptRunner.h" |
| #include "wtf/LeakAnnotations.h" |
| #include "wtf/MainThread.h" |
| |
| namespace WebCore { |
| |
| static V8PerIsolateData* mainThreadPerIsolateData = 0; |
| |
| V8PerIsolateData::V8PerIsolateData(v8::Isolate* isolate) |
| : m_isolate(isolate) |
| , m_isolateHolder(adoptPtr(new gin::IsolateHolder(m_isolate, v8ArrayBufferAllocator()))) |
| , m_stringCache(adoptPtr(new StringCache())) |
| , m_hiddenValue(adoptPtr(new V8HiddenValue())) |
| , m_constructorMode(ConstructorMode::CreateNewObject) |
| , m_recursionLevel(0) |
| #ifndef NDEBUG |
| , m_internalScriptRecursionLevel(0) |
| #endif |
| , m_gcEventData(adoptPtr(new GCEventData())) |
| , m_performingMicrotaskCheckpoint(false) |
| { |
| if (isMainThread()) |
| mainThreadPerIsolateData = this; |
| } |
| |
| V8PerIsolateData::~V8PerIsolateData() |
| { |
| if (isMainThread()) |
| mainThreadPerIsolateData = 0; |
| } |
| |
| v8::Isolate* V8PerIsolateData::mainThreadIsolate() |
| { |
| ASSERT(isMainThread()); |
| ASSERT(mainThreadPerIsolateData); |
| return mainThreadPerIsolateData->isolate(); |
| } |
| |
| void V8PerIsolateData::ensureInitialized(v8::Isolate* isolate) |
| { |
| ASSERT(isolate); |
| if (!isolate->GetData(gin::kEmbedderBlink)) { |
| V8PerIsolateData* data = new V8PerIsolateData(isolate); |
| isolate->SetData(gin::kEmbedderBlink, data); |
| } |
| } |
| |
| v8::Persistent<v8::Value>& V8PerIsolateData::ensureLiveRoot() |
| { |
| if (m_liveRoot.isEmpty()) |
| m_liveRoot.set(m_isolate, v8::Null(m_isolate)); |
| return m_liveRoot.getUnsafe(); |
| } |
| |
| void V8PerIsolateData::dispose(v8::Isolate* isolate) |
| { |
| void* data = isolate->GetData(gin::kEmbedderBlink); |
| delete static_cast<V8PerIsolateData*>(data); |
| isolate->SetData(gin::kEmbedderBlink, 0); |
| } |
| |
| V8PerIsolateData::DOMTemplateMap& V8PerIsolateData::currentDOMTemplateMap() |
| { |
| if (DOMWrapperWorld::current(m_isolate)->isMainWorld()) |
| return m_domTemplateMapForMainWorld; |
| return m_domTemplateMapForNonMainWorld; |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::domTemplate(void* domTemplateKey, v8::FunctionCallback callback, v8::Handle<v8::Value> data, v8::Handle<v8::Signature> signature, int length) |
| { |
| DOMTemplateMap& domTemplateMap = currentDOMTemplateMap(); |
| DOMTemplateMap::iterator result = domTemplateMap.find(domTemplateKey); |
| if (result != domTemplateMap.end()) |
| return result->value.Get(m_isolate); |
| |
| v8::Local<v8::FunctionTemplate> templ = v8::FunctionTemplate::New(m_isolate, callback, data, signature, length); |
| domTemplateMap.add(domTemplateKey, v8::Eternal<v8::FunctionTemplate>(m_isolate, templ)); |
| return templ; |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::existingDOMTemplate(void* domTemplateKey) |
| { |
| DOMTemplateMap& domTemplateMap = currentDOMTemplateMap(); |
| DOMTemplateMap::iterator result = domTemplateMap.find(domTemplateKey); |
| if (result != domTemplateMap.end()) |
| return result->value.Get(m_isolate); |
| return v8::Local<v8::FunctionTemplate>(); |
| } |
| |
| void V8PerIsolateData::setDOMTemplate(void* domTemplateKey, v8::Handle<v8::FunctionTemplate> templ) |
| { |
| currentDOMTemplateMap().add(domTemplateKey, v8::Eternal<v8::FunctionTemplate>(m_isolate, v8::Local<v8::FunctionTemplate>(templ))); |
| } |
| |
| v8::Local<v8::Context> V8PerIsolateData::ensureDomInJSContext() |
| { |
| if (!m_domInJSPerContextData) { |
| m_domInJSPerContextData = V8PerContextData::create(v8::Context::New(m_isolate), DOMWrapperWorld::create()); |
| // The V8PerContextData is collected via a weak reference callback from the V8Context, which is expected to not always shutdown cleanly. |
| WTF_ANNOTATE_LEAKING_OBJECT_PTR(m_domInJSPerContextData.get()); |
| } |
| return m_domInJSPerContextData->context(); |
| } |
| |
| bool V8PerIsolateData::hasInstance(const WrapperTypeInfo* info, v8::Handle<v8::Value> value) |
| { |
| return hasInstance(info, value, m_domTemplateMapForMainWorld) |
| || hasInstance(info, value, m_domTemplateMapForNonMainWorld); |
| } |
| |
| bool V8PerIsolateData::hasInstance(const WrapperTypeInfo* info, v8::Handle<v8::Value> value, DOMTemplateMap& domTemplateMap) |
| { |
| DOMTemplateMap::iterator result = domTemplateMap.find(info); |
| if (result == domTemplateMap.end()) |
| return false; |
| v8::Handle<v8::FunctionTemplate> templ = result->value.Get(m_isolate); |
| return templ->HasInstance(value); |
| } |
| |
| v8::Handle<v8::Object> V8PerIsolateData::findInstanceInPrototypeChain(const WrapperTypeInfo* info, v8::Handle<v8::Value> value) |
| { |
| v8::Handle<v8::Object> wrapper = findInstanceInPrototypeChain(info, value, m_domTemplateMapForMainWorld); |
| if (!wrapper.IsEmpty()) |
| return wrapper; |
| return findInstanceInPrototypeChain(info, value, m_domTemplateMapForNonMainWorld); |
| } |
| |
| v8::Handle<v8::Object> V8PerIsolateData::findInstanceInPrototypeChain(const WrapperTypeInfo* info, v8::Handle<v8::Value> value, DOMTemplateMap& domTemplateMap) |
| { |
| if (value.IsEmpty() || !value->IsObject()) |
| return v8::Handle<v8::Object>(); |
| DOMTemplateMap::iterator result = domTemplateMap.find(info); |
| if (result == domTemplateMap.end()) |
| return v8::Handle<v8::Object>(); |
| v8::Handle<v8::FunctionTemplate> templ = result->value.Get(m_isolate); |
| return v8::Handle<v8::Object>::Cast(value)->FindInstanceInPrototypeChain(templ); |
| } |
| |
| static void constructorOfToString(const v8::FunctionCallbackInfo<v8::Value>& info) |
| { |
| // The DOM constructors' toString functions grab the current toString |
| // for Functions by taking the toString function of itself and then |
| // calling it with the constructor as its receiver. This means that |
| // changes to the Function prototype chain or toString function are |
| // reflected when printing DOM constructors. The only wart is that |
| // changes to a DOM constructor's toString's toString will cause the |
| // toString of the DOM constructor itself to change. This is extremely |
| // obscure and unlikely to be a problem. |
| v8::Handle<v8::Value> value = info.Callee()->Get(v8AtomicString(info.GetIsolate(), "toString")); |
| if (!value->IsFunction()) { |
| v8SetReturnValue(info, v8::String::Empty(info.GetIsolate())); |
| return; |
| } |
| v8SetReturnValue(info, V8ScriptRunner::callInternalFunction(v8::Handle<v8::Function>::Cast(value), info.This(), 0, 0, v8::Isolate::GetCurrent())); |
| } |
| |
| v8::Handle<v8::FunctionTemplate> V8PerIsolateData::toStringTemplate() |
| { |
| if (m_toStringTemplate.isEmpty()) |
| m_toStringTemplate.set(m_isolate, v8::FunctionTemplate::New(m_isolate, constructorOfToString)); |
| return m_toStringTemplate.newLocal(m_isolate); |
| } |
| |
| } // namespace WebCore |