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/*
* Copyright (C) 2007-2009 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 "V8Document.h"
#include "CanvasRenderingContext.h"
#include "Document.h"
#include "ExceptionCode.h"
#include "Node.h"
#include "TouchList.h"
#include "XPathNSResolver.h"
#include "XPathResult.h"
#include "V8Binding.h"
#include "V8CanvasRenderingContext2D.h"
#include "V8CustomXPathNSResolver.h"
#include "V8DOMImplementation.h"
#include "V8HTMLDocument.h"
#include "V8IsolatedContext.h"
#include "V8Node.h"
#include "V8Proxy.h"
#include "V8Touch.h"
#include "V8TouchList.h"
#if ENABLE(WEBGL)
#include "V8WebGLRenderingContext.h"
#endif
#include "V8XPathNSResolver.h"
#include "V8XPathResult.h"
#if ENABLE(SVG)
#include "V8SVGDocument.h"
#endif
#include <wtf/RefPtr.h>
namespace WebCore {
#if ENABLE(XPATH)
v8::Handle<v8::Value> V8Document::evaluateCallback(const v8::Arguments& args)
{
INC_STATS("DOM.Document.evaluate()");
RefPtr<Document> document = V8Document::toNative(args.Holder());
ExceptionCode ec = 0;
String expression = toWebCoreString(args[0]);
RefPtr<Node> contextNode;
if (V8Node::HasInstance(args[1]))
contextNode = V8Node::toNative(v8::Handle<v8::Object>::Cast(args[1]));
RefPtr<XPathNSResolver> resolver = V8DOMWrapper::getXPathNSResolver(args[2]);
if (!resolver && !args[2]->IsNull() && !args[2]->IsUndefined())
return throwError(TYPE_MISMATCH_ERR);
int type = toInt32(args[3]);
RefPtr<XPathResult> inResult;
if (V8XPathResult::HasInstance(args[4]))
inResult = V8XPathResult::toNative(v8::Handle<v8::Object>::Cast(args[4]));
v8::TryCatch exceptionCatcher;
RefPtr<XPathResult> result = document->evaluate(expression, contextNode.get(), resolver.get(), type, inResult.get(), ec);
if (exceptionCatcher.HasCaught())
return throwError(exceptionCatcher.Exception());
if (ec)
return throwError(ec);
return toV8(result.release());
}
#endif
v8::Handle<v8::Value> V8Document::getCSSCanvasContextCallback(const v8::Arguments& args)
{
INC_STATS("DOM.Document.getCSSCanvasContext");
v8::Handle<v8::Object> holder = args.Holder();
Document* imp = V8Document::toNative(holder);
String contextId = toWebCoreString(args[0]);
String name = toWebCoreString(args[1]);
int width = toInt32(args[2]);
int height = toInt32(args[3]);
CanvasRenderingContext* result = imp->getCSSCanvasContext(contextId, name, width, height);
if (!result)
return v8::Undefined();
if (result->is2d())
return toV8(static_cast<CanvasRenderingContext2D*>(result));
#if ENABLE(WEBGL)
else if (result->is3d())
return toV8(static_cast<WebGLRenderingContext*>(result));
#endif // ENABLE(WEBGL)
ASSERT_NOT_REACHED();
return v8::Undefined();
}
// DOMImplementation is a singleton in WebCore. If we use our normal
// mapping from DOM objects to V8 wrappers, the same wrapper will be
// shared for all frames in the same process. This is a major
// security problem. Therefore, we generate a DOMImplementation
// wrapper per document and store it in an internal field of the
// document. Since the DOMImplementation object is a singleton, we do
// not have to do anything to keep the DOMImplementation object alive
// for the lifetime of the wrapper.
v8::Handle<v8::Value> V8Document::implementationAccessorGetter(v8::Local<v8::String> name, const v8::AccessorInfo& info)
{
ASSERT(info.Holder()->InternalFieldCount() >= internalFieldCount);
// Check if the internal field already contains a wrapper.
v8::Local<v8::Value> implementation = info.Holder()->GetInternalField(V8Document::implementationIndex);
if (!implementation->IsUndefined())
return implementation;
// Generate a wrapper.
Document* document = V8Document::toNative(info.Holder());
v8::Handle<v8::Value> wrapper = toV8(document->implementation());
// Store the wrapper in the internal field.
info.Holder()->SetInternalField(implementationIndex, wrapper);
return wrapper;
}
v8::Handle<v8::Value> toV8(Document* impl, bool forceNewObject)
{
if (!impl)
return v8::Null();
if (impl->isHTMLDocument())
return toV8(static_cast<HTMLDocument*>(impl), forceNewObject);
#if ENABLE(SVG)
if (impl->isSVGDocument())
return toV8(static_cast<SVGDocument*>(impl), forceNewObject);
#endif
v8::Handle<v8::Object> wrapper = V8Document::wrap(impl, forceNewObject);
if (wrapper.IsEmpty())
return wrapper;
if (!V8IsolatedContext::getEntered()) {
if (V8Proxy* proxy = V8Proxy::retrieve(impl->frame()))
proxy->windowShell()->updateDocumentWrapper(wrapper);
}
return wrapper;
}
#if ENABLE(TOUCH_EVENTS)
v8::Handle<v8::Value> V8Document::createTouchListCallback(const v8::Arguments& args)
{
RefPtr<TouchList> touchList = TouchList::create();
for (int i = 0; i < args.Length(); i++) {
if (!args[i]->IsObject())
return v8::Undefined();
touchList->append(V8Touch::toNative(args[i]->ToObject()));
}
return toV8(touchList.release());
}
#endif
} // namespace WebCore
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