Merge WebKit at r75315: Initial merge by git.

Change-Id: I570314b346ce101c935ed22a626b48c2af266b84

1 files changed, 0 insertions, 480 deletions

diff --git a/WebCore/bindings/v8/V8DOMWrapper.cpp b/WebCore/bindings/v8/V8DOMWrapper.cpp
deleted file mode 100644
index 72f6bdc..0000000
--- a/WebCore/bindings/v8/V8DOMWrapper.cpp
+++ /dev/null
@@ -1,480 +0,0 @@
-/*
- * 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:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * 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.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND 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 THE COPYRIGHT
- * OWNER OR 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 "V8DOMWrapper.h"
-
-#include "CSSMutableStyleDeclaration.h"
-#include "DOMDataStore.h"
-#include "DocumentLoader.h"
-#include "FrameLoaderClient.h"
-#include "Notification.h"
-#include "ScriptController.h"
-#include "V8AbstractEventListener.h"
-#include "V8Binding.h"
-#include "V8Collection.h"
-#include "V8CustomEventListener.h"
-#include "V8DedicatedWorkerContext.h"
-#include "V8DOMApplicationCache.h"
-#include "V8DOMMap.h"
-#include "V8DOMWindow.h"
-#include "V8EventListenerList.h"
-#include "V8EventSource.h"
-#include "V8FileReader.h"
-#include "V8FileWriter.h"
-#include "V8HTMLCollection.h"
-#include "V8HTMLDocument.h"
-#include "V8IDBRequest.h"
-#include "V8IDBTransaction.h"
-#include "V8IsolatedContext.h"
-#include "V8Location.h"
-#include "V8MessageChannel.h"
-#include "V8NamedNodeMap.h"
-#include "V8Node.h"
-#include "V8NodeFilterCondition.h"
-#include "V8NodeList.h"
-#include "V8Notification.h"
-#include "V8Proxy.h"
-#include "V8SharedWorker.h"
-#include "V8SharedWorkerContext.h"
-#include "V8StyleSheet.h"
-#include "V8WebSocket.h"
-#include "V8Worker.h"
-#include "V8WorkerContext.h"
-#include "V8WorkerContextEventListener.h"
-#include "V8XMLHttpRequest.h"
-#include "ArrayBufferView.h"
-#include "WebGLContextAttributes.h"
-#include "WebGLUniformLocation.h"
-#include "WorkerContextExecutionProxy.h"
-#include "WrapperTypeInfo.h"
-
-#if ENABLE(SVG)
-#include "SVGElementInstance.h"
-#include "SVGPathSeg.h"
-#include "V8SVGElementInstance.h"
-#endif
-
-#if ENABLE(WEB_AUDIO)
-#include "V8JavaScriptAudioNode.h"
-#endif
-
-#include <algorithm>
-#include <utility>
-#include <v8-debug.h>
-#include <wtf/Assertions.h>
-#include <wtf/OwnArrayPtr.h>
-#include <wtf/StdLibExtras.h>
-#include <wtf/UnusedParam.h>
-
-namespace WebCore {
-
-typedef HashMap<Node*, v8::Object*> DOMNodeMap;
-typedef HashMap<void*, v8::Object*> DOMObjectMap;
-
-// The caller must have increased obj's ref count.
-void V8DOMWrapper::setJSWrapperForDOMObject(void* object, v8::Persistent<v8::Object> wrapper)
-{
-    ASSERT(V8DOMWrapper::maybeDOMWrapper(wrapper));
-    ASSERT(!domWrapperType(wrapper)->toActiveDOMObjectFunction);
-    getDOMObjectMap().set(object, wrapper);
-}
-
-// The caller must have increased obj's ref count.
-void V8DOMWrapper::setJSWrapperForActiveDOMObject(void* object, v8::Persistent<v8::Object> wrapper)
-{
-    ASSERT(V8DOMWrapper::maybeDOMWrapper(wrapper));
-    ASSERT(domWrapperType(wrapper)->toActiveDOMObjectFunction);
-    getActiveDOMObjectMap().set(object, wrapper);
-}
-
-// The caller must have increased node's ref count.
-void V8DOMWrapper::setJSWrapperForDOMNode(Node* node, v8::Persistent<v8::Object> wrapper)
-{
-    ASSERT(V8DOMWrapper::maybeDOMWrapper(wrapper));
-    getDOMNodeMap().set(node, wrapper);
-}
-
-v8::Local<v8::Function> V8DOMWrapper::getConstructor(WrapperTypeInfo* type, v8::Handle<v8::Value> objectPrototype)
-{
-    // A DOM constructor is a function instance created from a DOM constructor
-    // template. There is one instance per context. A DOM constructor is
-    // different from a normal function in two ways:
-    //   1) it cannot be called as constructor (aka, used to create a DOM object)
-    //   2) its __proto__ points to Object.prototype rather than
-    //      Function.prototype.
-    // The reason for 2) is that, in Safari, a DOM constructor is a normal JS
-    // object, but not a function. Hotmail relies on the fact that, in Safari,
-    // HTMLElement.__proto__ == Object.prototype.
-    v8::Handle<v8::FunctionTemplate> functionTemplate = type->getTemplate();
-    // Getting the function might fail if we're running out of
-    // stack or memory.
-    v8::TryCatch tryCatch;
-    v8::Local<v8::Function> value = functionTemplate->GetFunction();
-    if (value.IsEmpty())
-        return v8::Local<v8::Function>();
-    // Hotmail fix, see comments above.
-    if (!objectPrototype.IsEmpty())
-        value->SetPrototype(objectPrototype);
-    return value;
-}
-
-v8::Local<v8::Function> V8DOMWrapper::getConstructorForContext(WrapperTypeInfo* type, v8::Handle<v8::Context> context)
-{
-    // Enter the scope for this context to get the correct constructor.
-    v8::Context::Scope scope(context);
-
-    return getConstructor(type, V8DOMWindowShell::getHiddenObjectPrototype(context));
-}
-
-v8::Local<v8::Function> V8DOMWrapper::getConstructor(WrapperTypeInfo* type, DOMWindow* window)
-{
-    Frame* frame = window->frame();
-    if (!frame)
-        return v8::Local<v8::Function>();
-
-    v8::Handle<v8::Context> context = V8Proxy::context(frame);
-    if (context.IsEmpty())
-        return v8::Local<v8::Function>();
-
-    return getConstructorForContext(type, context);
-}
-
-#if ENABLE(WORKERS)
-v8::Local<v8::Function> V8DOMWrapper::getConstructor(WrapperTypeInfo* type, WorkerContext*)
-{
-    WorkerScriptController* controller = WorkerScriptController::controllerForContext();
-    WorkerContextExecutionProxy* proxy = controller ? controller->proxy() : 0;
-    if (!proxy)
-        return v8::Local<v8::Function>();
-
-    v8::Handle<v8::Context> context = proxy->context();
-    if (context.IsEmpty())
-        return v8::Local<v8::Function>();
-
-    return getConstructorForContext(type, context);
-}
-#endif
-
-void V8DOMWrapper::setHiddenReference(v8::Handle<v8::Object> parent, v8::Handle<v8::Value> child)
-{
-    v8::Local<v8::Value> hiddenReferenceObject = parent->GetInternalField(v8DOMHiddenReferenceArrayIndex);
-    if (hiddenReferenceObject->IsNull() || hiddenReferenceObject->IsUndefined()) {
-        hiddenReferenceObject = v8::Array::New();
-        parent->SetInternalField(v8DOMHiddenReferenceArrayIndex, hiddenReferenceObject);
-    }
-    v8::Local<v8::Array> hiddenReferenceArray = v8::Local<v8::Array>::Cast(hiddenReferenceObject);
-    hiddenReferenceArray->Set(v8::Integer::New(hiddenReferenceArray->Length()), child);
-}
-
-void V8DOMWrapper::setHiddenWindowReference(Frame* frame, v8::Handle<v8::Value> jsObject)
-{
-    // Get DOMWindow
-    if (!frame)
-        return; // Object might be detached from window
-    v8::Handle<v8::Context> context = V8Proxy::context(frame);
-    if (context.IsEmpty())
-        return;
-
-    v8::Handle<v8::Object> global = context->Global();
-    // Look for real DOM wrapper.
-    global = V8DOMWrapper::lookupDOMWrapper(V8DOMWindow::GetTemplate(), global);
-    ASSERT(!global.IsEmpty());
-
-    setHiddenReference(global, jsObject);
-}
-
-WrapperTypeInfo* V8DOMWrapper::domWrapperType(v8::Handle<v8::Object> object)
-{
-    ASSERT(V8DOMWrapper::maybeDOMWrapper(object));
-    return static_cast<WrapperTypeInfo*>(object->GetPointerFromInternalField(v8DOMWrapperTypeIndex));
-}
-
-PassRefPtr<NodeFilter> V8DOMWrapper::wrapNativeNodeFilter(v8::Handle<v8::Value> filter)
-{
-    // A NodeFilter is used when walking through a DOM tree or iterating tree
-    // nodes.
-    // FIXME: we may want to cache NodeFilterCondition and NodeFilter
-    // object, but it is minor.
-    // NodeFilter is passed to NodeIterator that has a ref counted pointer
-    // to NodeFilter. NodeFilter has a ref counted pointer to NodeFilterCondition.
-    // In NodeFilterCondition, filter object is persisted in its constructor,
-    // and disposed in its destructor.
-    return NodeFilter::create(V8NodeFilterCondition::create(filter));
-}
-
-static bool globalObjectPrototypeIsDOMWindow(v8::Handle<v8::Object> objectPrototype)
-{
-    // We can identify what type of context the global object is wrapping by looking at the
-    // internal field count of its prototype. This assumes WorkerContexts and DOMWindows have different numbers
-    // of internal fields, so a COMPILE_ASSERT is included to warn if this ever changes.
-#if ENABLE(WORKERS)
-    COMPILE_ASSERT(V8DOMWindow::internalFieldCount != V8WorkerContext::internalFieldCount,
-        DOMWindowAndWorkerContextHaveUnequalFieldCounts);
-    COMPILE_ASSERT(V8DOMWindow::internalFieldCount != V8DedicatedWorkerContext::internalFieldCount,
-        DOMWindowAndDedicatedWorkerContextHaveUnequalFieldCounts);
-#endif
-#if ENABLE(SHARED_WORKERS)
-    COMPILE_ASSERT(V8DOMWindow::internalFieldCount != V8SharedWorkerContext::internalFieldCount,
-        DOMWindowAndSharedWorkerContextHaveUnequalFieldCounts);
-#endif
-    return objectPrototype->InternalFieldCount() == V8DOMWindow::internalFieldCount;
-}
-
-v8::Local<v8::Object> V8DOMWrapper::instantiateV8Object(V8Proxy* proxy, WrapperTypeInfo* type, void* impl)
-{
-    WorkerContext* workerContext = 0;
-    if (V8IsolatedContext::getEntered()) {
-        // This effectively disables the wrapper cache for isolated worlds.
-        proxy = 0;
-        // FIXME: Do we need a wrapper cache for the isolated world?  We should
-        //        see if the performance gains are worth while.
-        // We'll get one once we give the isolated context a proper window shell.
-    } else if (!proxy) {
-        v8::Handle<v8::Context> context = v8::Context::GetCurrent();
-        if (!context.IsEmpty()) {
-            v8::Handle<v8::Object> globalPrototype = v8::Handle<v8::Object>::Cast(context->Global()->GetPrototype());
-            if (globalObjectPrototypeIsDOMWindow(globalPrototype))
-                proxy = V8Proxy::retrieve(V8DOMWindow::toNative(globalPrototype)->frame());
-#if ENABLE(WORKERS)
-            else
-                workerContext = V8WorkerContext::toNative(lookupDOMWrapper(V8WorkerContext::GetTemplate(), context->Global()));
-#endif
-        }
-    }
-
-    v8::Local<v8::Object> instance;
-    if (proxy)
-        // FIXME: Fix this to work properly with isolated worlds (see above).
-        instance = proxy->windowShell()->createWrapperFromCache(type);
-    else {
-        v8::Local<v8::Function> function;
-#if ENABLE(WORKERS)
-        if (workerContext)
-            function = getConstructor(type, workerContext);
-        else
-#endif
-            function = type->getTemplate()->GetFunction();
-        instance = SafeAllocation::newInstance(function);
-    }
-    if (!instance.IsEmpty()) {
-        // Avoid setting the DOM wrapper for failed allocations.
-        setDOMWrapper(instance, type, impl);
-        if (type == &V8HTMLDocument::info)
-            instance = V8HTMLDocument::WrapInShadowObject(instance, static_cast<Node*>(impl));
-    }
-    return instance;
-}
-
-#ifndef NDEBUG
-bool V8DOMWrapper::maybeDOMWrapper(v8::Handle<v8::Value> value)
-{
-    if (value.IsEmpty() || !value->IsObject())
-        return false;
-
-    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
-    if (!object->InternalFieldCount())
-        return false;
-
-    ASSERT(object->InternalFieldCount() >= v8DefaultWrapperInternalFieldCount);
-
-    v8::Handle<v8::Value> wrapper = object->GetInternalField(v8DOMWrapperObjectIndex);
-    ASSERT(wrapper->IsNumber() || wrapper->IsExternal());
-
-    return true;
-}
-#endif
-
-bool V8DOMWrapper::isValidDOMObject(v8::Handle<v8::Value> value)
-{
-    if (value.IsEmpty() || !value->IsObject())
-        return false;
-    return v8::Handle<v8::Object>::Cast(value)->InternalFieldCount();
-}
-
-bool V8DOMWrapper::isWrapperOfType(v8::Handle<v8::Value> value, WrapperTypeInfo* type)
-{
-    if (!isValidDOMObject(value))
-        return false;
-
-    v8::Handle<v8::Object> object = v8::Handle<v8::Object>::Cast(value);
-    ASSERT(object->InternalFieldCount() >= v8DefaultWrapperInternalFieldCount);
-
-    v8::Handle<v8::Value> wrapper = object->GetInternalField(v8DOMWrapperObjectIndex);
-    ASSERT(wrapper->IsNumber() || wrapper->IsExternal());
-
-    WrapperTypeInfo* typeInfo = static_cast<WrapperTypeInfo*>(object->GetPointerFromInternalField(v8DOMWrapperTypeIndex));
-    return typeInfo == type;
-}
-
-v8::Handle<v8::Object> V8DOMWrapper::getWrapperSlow(Node* node)
-{
-    V8IsolatedContext* context = V8IsolatedContext::getEntered();
-    if (LIKELY(!context)) {
-        v8::Persistent<v8::Object>* wrapper = node->wrapper();
-        if (!wrapper)
-            return v8::Handle<v8::Object>();
-        return *wrapper;
-    }
-    DOMNodeMapping& domNodeMap = context->world()->domDataStore()->domNodeMap();
-    return domNodeMap.get(node);
-}
-
-// A JS object of type EventTarget is limited to a small number of possible classes.
-// Check EventTarget.h for new type conversion methods
-v8::Handle<v8::Value> V8DOMWrapper::convertEventTargetToV8Object(EventTarget* target)
-{
-    if (!target)
-        return v8::Null();
-
-#if ENABLE(SVG)
-    if (SVGElementInstance* instance = target->toSVGElementInstance())
-        return toV8(instance);
-#endif
-
-#if ENABLE(WORKERS)
-    if (Worker* worker = target->toWorker())
-        return toV8(worker);
-
-    if (DedicatedWorkerContext* workerContext = target->toDedicatedWorkerContext())
-        return toV8(workerContext);
-#endif // WORKERS
-
-#if ENABLE(SHARED_WORKERS)
-    if (SharedWorker* sharedWorker = target->toSharedWorker())
-        return toV8(sharedWorker);
-
-    if (SharedWorkerContext* sharedWorkerContext = target->toSharedWorkerContext())
-        return toV8(sharedWorkerContext);
-#endif // SHARED_WORKERS
-
-#if ENABLE(NOTIFICATIONS)
-    if (Notification* notification = target->toNotification())
-        return toV8(notification);
-#endif
-
-#if ENABLE(INDEXED_DATABASE)
-    if (IDBRequest* idbRequest = target->toIDBRequest())
-        return toV8(idbRequest);
-    if (IDBTransaction* idbTransaction = target->toIDBTransaction())
-        return toV8(idbTransaction);
-#endif
-
-#if ENABLE(WEB_SOCKETS)
-    if (WebSocket* webSocket = target->toWebSocket())
-        return toV8(webSocket);
-#endif
-
-    if (Node* node = target->toNode())
-        return toV8(node);
-
-    if (DOMWindow* domWindow = target->toDOMWindow())
-        return toV8(domWindow);
-
-    // XMLHttpRequest is created within its JS counterpart.
-    if (XMLHttpRequest* xmlHttpRequest = target->toXMLHttpRequest()) {
-        v8::Handle<v8::Object> wrapper = getActiveDOMObjectMap().get(xmlHttpRequest);
-        ASSERT(!wrapper.IsEmpty());
-        return wrapper;
-    }
-
-    // MessagePort is created within its JS counterpart
-    if (MessagePort* port = target->toMessagePort()) {
-        v8::Handle<v8::Object> wrapper = getActiveDOMObjectMap().get(port);
-        ASSERT(!wrapper.IsEmpty());
-        return wrapper;
-    }
-
-    if (XMLHttpRequestUpload* upload = target->toXMLHttpRequestUpload()) {
-        v8::Handle<v8::Object> wrapper = getDOMObjectMap().get(upload);
-        ASSERT(!wrapper.IsEmpty());
-        return wrapper;
-    }
-
-#if ENABLE(OFFLINE_WEB_APPLICATIONS)
-    if (DOMApplicationCache* domAppCache = target->toDOMApplicationCache())
-        return toV8(domAppCache);
-#endif
-
-#if ENABLE(EVENTSOURCE)
-    if (EventSource* eventSource = target->toEventSource())
-        return toV8(eventSource);
-#endif
-
-#if ENABLE(BLOB)
-    if (FileReader* fileReader = target->toFileReader())
-        return toV8(fileReader);
-#endif
-
-#if ENABLE(FILE_SYSTEM)
-    if (FileWriter* fileWriter = target->toFileWriter())
-        return toV8(fileWriter);
-#endif
-
-#if ENABLE(WEB_AUDIO)
-    if (JavaScriptAudioNode* jsAudioNode = target->toJavaScriptAudioNode())
-        return toV8(jsAudioNode);
-#endif    
-
-    ASSERT(0);
-    return notHandledByInterceptor();
-}
-
-PassRefPtr<EventListener> V8DOMWrapper::getEventListener(v8::Local<v8::Value> value, bool isAttribute, ListenerLookupType lookup)
-{
-    v8::Handle<v8::Context> context = v8::Context::GetCurrent();
-    if (context.IsEmpty())
-        return 0;
-    if (lookup == ListenerFindOnly)
-        return V8EventListenerList::findWrapper(value, isAttribute);
-    v8::Handle<v8::Object> globalPrototype = v8::Handle<v8::Object>::Cast(context->Global()->GetPrototype());
-    if (globalObjectPrototypeIsDOMWindow(globalPrototype))
-        return V8EventListenerList::findOrCreateWrapper<V8EventListener>(value, isAttribute);
-#if ENABLE(WORKERS)
-    return V8EventListenerList::findOrCreateWrapper<V8WorkerContextEventListener>(value, isAttribute);
-#else
-    return 0;
-#endif
-}
-
-#if ENABLE(XPATH)
-// XPath-related utilities
-RefPtr<XPathNSResolver> V8DOMWrapper::getXPathNSResolver(v8::Handle<v8::Value> value, V8Proxy* proxy)
-{
-    RefPtr<XPathNSResolver> resolver;
-    if (V8XPathNSResolver::HasInstance(value))
-        resolver = V8XPathNSResolver::toNative(v8::Handle<v8::Object>::Cast(value));
-    else if (value->IsObject())
-        resolver = V8CustomXPathNSResolver::create(value->ToObject());
-    return resolver;
-}
-#endif
-
-}  // namespace WebCore