JSDOMWindowShell.cpp   [plain text]

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#include "config.h"
#include "JSDOMWindowShell.h"

#include "Frame.h"
#include "JSDOMWindow.h"
#include "DOMWindow.h"
#include "ScriptController.h"
#include <heap/StrongInlines.h>
#include <runtime/JSObject.h>

using namespace JSC;

namespace WebCore {

ASSERT_CLASS_FITS_IN_CELL(JSDOMWindowShell);

const ClassInfo JSDOMWindowShell::s_info = { "JSDOMWindowShell", &Base::s_info, 0, 0, CREATE_METHOD_TABLE(JSDOMWindowShell) };

JSDOMWindowShell::JSDOMWindowShell(Structure* structure, DOMWrapperWorld* world)
    : Base(*world->globalData(), structure)
    , m_world(world)
{
}

void JSDOMWindowShell::finishCreation(JSGlobalData& globalData, PassRefPtr<DOMWindow> window)
{
    Base::finishCreation(globalData);
    ASSERT(inherits(&s_info));
    setWindow(window);
}

void JSDOMWindowShell::destroy(JSCell* cell)
{
    jsCast<JSDOMWindowShell*>(cell)->JSDOMWindowShell::~JSDOMWindowShell();
}

void JSDOMWindowShell::setWindow(PassRefPtr<DOMWindow> domWindow)
{
    // Replacing JSDOMWindow via telling JSDOMWindowShell to use the same DOMWindow it already uses makes no sense,
    // so we'd better never try to.
    ASSERT(!window() || domWindow.get() != window()->impl());
    // Explicitly protect the global object's prototype so it isn't collected
    // when we allocate the global object. (Once the global object is fully
    // constructed, it can mark its own prototype.)
    Structure* prototypeStructure = JSDOMWindowPrototype::createStructure(*JSDOMWindow::commonJSGlobalData(), 0, jsNull());
    Strong<JSDOMWindowPrototype> prototype(*JSDOMWindow::commonJSGlobalData(), JSDOMWindowPrototype::create(*JSDOMWindow::commonJSGlobalData(), 0, prototypeStructure));

    Structure* structure = JSDOMWindow::createStructure(*JSDOMWindow::commonJSGlobalData(), 0, prototype.get());
    JSDOMWindow* jsDOMWindow = JSDOMWindow::create(*JSDOMWindow::commonJSGlobalData(), structure, domWindow, this);
    prototype->structure()->setGlobalObject(*JSDOMWindow::commonJSGlobalData(), jsDOMWindow);
    setWindow(*JSDOMWindow::commonJSGlobalData(), jsDOMWindow);
    ASSERT(jsDOMWindow->globalObject() == jsDOMWindow);
    ASSERT(prototype->globalObject() == jsDOMWindow);
}

// ----
// JSObject methods
// ----

UString JSDOMWindowShell::className(const JSObject* object)
{
    const JSDOMWindowShell* thisObject = jsCast<const JSDOMWindowShell*>(object);
    return thisObject->window()->methodTable()->className(thisObject->window());
}

bool JSDOMWindowShell::getOwnPropertySlot(JSCell* cell, ExecState* exec, const Identifier& propertyName, PropertySlot& slot)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(cell);
    return thisObject->window()->methodTable()->getOwnPropertySlot(thisObject->window(), exec, propertyName, slot);
}

bool JSDOMWindowShell::getOwnPropertyDescriptor(JSObject* object, ExecState* exec, const Identifier& propertyName, PropertyDescriptor& descriptor)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(object);
    return thisObject->window()->methodTable()->getOwnPropertyDescriptor(thisObject->window(), exec, propertyName, descriptor);
}

void JSDOMWindowShell::put(JSCell* cell, ExecState* exec, const Identifier& propertyName, JSValue value, PutPropertySlot& slot)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(cell);
    thisObject->window()->methodTable()->put(thisObject->window(), exec, propertyName, value, slot);
}

void JSDOMWindowShell::putDirectVirtual(JSObject* object, ExecState* exec, const Identifier& propertyName, JSValue value, unsigned attributes)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(object);
    thisObject->window()->putDirectVirtual(thisObject->window(), exec, propertyName, value, attributes);
}

bool JSDOMWindowShell::defineOwnProperty(JSC::JSObject* object, JSC::ExecState* exec, const JSC::Identifier& propertyName, JSC::PropertyDescriptor& descriptor, bool shouldThrow)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(object);
    return thisObject->window()->methodTable()->defineOwnProperty(thisObject->window(), exec, propertyName, descriptor, shouldThrow);
}

bool JSDOMWindowShell::deleteProperty(JSCell* cell, ExecState* exec, const Identifier& propertyName)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(cell);
    return thisObject->window()->methodTable()->deleteProperty(thisObject->window(), exec, propertyName);
}

void JSDOMWindowShell::getPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(object);
    thisObject->window()->methodTable()->getPropertyNames(thisObject->window(), exec, propertyNames, mode);
}

void JSDOMWindowShell::getOwnPropertyNames(JSObject* object, ExecState* exec, PropertyNameArray& propertyNames, EnumerationMode mode)
{
    JSDOMWindowShell* thisObject = jsCast<JSDOMWindowShell*>(object);
    thisObject->window()->methodTable()->getOwnPropertyNames(thisObject->window(), exec, propertyNames, mode);
}


// ----
// JSDOMWindow methods
// ----

DOMWindow* JSDOMWindowShell::impl() const
{
    return window()->impl();
}

// ----
// Conversion methods
// ----

JSValue toJS(ExecState* exec, Frame* frame)
{
    if (!frame)
        return jsNull();
    return frame->script()->windowShell(currentWorld(exec));
}

JSDOMWindowShell* toJSDOMWindowShell(Frame* frame, DOMWrapperWorld* isolatedWorld)
{
    if (!frame)
        return 0;
    return frame->script()->windowShell(isolatedWorld);
}

} // namespace WebCore