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/*
* Copyright (C) 2009, 2010 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 "V8HTMLImageElementConstructor.h"
#include "BindingState.h"
#include "Document.h"
#include "Frame.h"
#include "HTMLImageElement.h"
#include "HTMLNames.h"
#include "V8Binding.h"
#include "V8Document.h"
#include "V8HTMLImageElement.h"
#include <wtf/RefPtr.h>
namespace WebCore {
WrapperTypeInfo V8HTMLImageElementConstructor::info = { V8HTMLImageElementConstructor::GetTemplate, V8HTMLImageElement::derefObject, 0, 0, V8HTMLImageElement::installPerContextPrototypeProperties, 0, WrapperTypeObjectPrototype };
static v8::Handle<v8::Value> v8HTMLImageElementConstructorCallback(const v8::Arguments& args)
{
INC_STATS("DOM.HTMLImageElement.Contructor");
if (!args.IsConstructCall())
return throwTypeError("DOM object constructor cannot be called as a function.", args.GetIsolate());
if (ConstructorMode::current() == ConstructorMode::WrapExistingObject)
return args.Holder();
Document* document = currentDocument(BindingState::instance());
// Make sure the document is added to the DOM Node map. Otherwise, the HTMLImageElement instance
// may end up being the only node in the map and get garbage-collected prematurely.
// FIXME: The correct way to do this would be to make HTMLImageElement derive from
// ActiveDOMObject and use its interface to keep its wrapper alive. Then we would
// remove this code and the special case in isObservableThroughDOM.
toV8(document, args.Holder(), args.GetIsolate());
int width;
int height;
int* optionalWidth = 0;
int* optionalHeight = 0;
if (args.Length() > 0) {
width = toInt32(args[0]);
optionalWidth = &width;
}
if (args.Length() > 1) {
height = toInt32(args[1]);
optionalHeight = &height;
}
RefPtr<HTMLImageElement> image = HTMLImageElement::createForJSConstructor(document, optionalWidth, optionalHeight);
v8::Handle<v8::Object> wrapper = args.Holder();
V8DOMWrapper::createDOMWrapper(image.release(), &V8HTMLImageElementConstructor::info, wrapper);
return wrapper;
}
v8::Persistent<v8::FunctionTemplate> V8HTMLImageElementConstructor::GetTemplate()
{
static v8::Persistent<v8::FunctionTemplate> cachedTemplate;
if (!cachedTemplate.IsEmpty())
return cachedTemplate;
v8::HandleScope scope;
v8::Local<v8::FunctionTemplate> result = v8::FunctionTemplate::New(v8HTMLImageElementConstructorCallback);
v8::Local<v8::ObjectTemplate> instance = result->InstanceTemplate();
instance->SetInternalFieldCount(V8HTMLImageElement::internalFieldCount);
result->SetClassName(v8::String::New("HTMLImageElement"));
result->Inherit(V8HTMLImageElement::GetTemplate());
cachedTemplate = v8::Persistent<v8::FunctionTemplate>::New(result);
return cachedTemplate;
}
} // namespace WebCore
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