JSImageConstructor.cpp [plain text]
#include "config.h"
#include "JSImageConstructor.h"
#include "HTMLImageElement.h"
#include "HTMLNames.h"
#include "JSHTMLImageElement.h"
#include "JSNode.h"
#include "ScriptExecutionContext.h"
using namespace JSC;
namespace WebCore {
ASSERT_CLASS_FITS_IN_CELL(JSImageConstructor);
const ClassInfo JSImageConstructor::s_info = { "ImageConstructor", 0, 0, 0 };
JSImageConstructor::JSImageConstructor(ExecState* exec, JSDOMGlobalObject* globalObject)
: DOMObject(JSImageConstructor::createStructure(exec->lexicalGlobalObject()->objectPrototype()))
, m_globalObject(globalObject)
{
ASSERT(globalObject->scriptExecutionContext());
ASSERT(globalObject->scriptExecutionContext()->isDocument());
putDirect(exec->propertyNames().prototype, JSHTMLImageElementPrototype::self(exec, exec->lexicalGlobalObject()), None);
}
Document* JSImageConstructor::document() const
{
return static_cast<Document*>(m_globalObject->scriptExecutionContext());
}
static JSObject* constructImage(ExecState* exec, JSObject* constructor, const ArgList& args)
{
bool widthSet = false;
bool heightSet = false;
int width = 0;
int height = 0;
if (args.size() > 0) {
widthSet = true;
width = args.at(0).toInt32(exec);
}
if (args.size() > 1) {
heightSet = true;
height = args.at(1).toInt32(exec);
}
Document* document = static_cast<JSImageConstructor*>(constructor)->document();
if (!document)
return throwError(exec, ReferenceError, "Image constructor associated document is unavailable");
toJS(exec, document);
RefPtr<HTMLImageElement> image = new HTMLImageElement(HTMLNames::imgTag, document);
if (widthSet)
image->setWidth(width);
if (heightSet)
image->setHeight(height);
return asObject(toJS(exec, image.release()));
}
ConstructType JSImageConstructor::getConstructData(ConstructData& constructData)
{
constructData.native.function = constructImage;
return ConstructTypeHost;
}
void JSImageConstructor::mark()
{
DOMObject::mark();
if (!m_globalObject->marked())
m_globalObject->mark();
}
}