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/*
* Copyright (C) 2008, 2009 Apple 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:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. 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.
* 3. Neither the name of Apple Inc. ("Apple") 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 APPLE AND ITS 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 APPLE OR ITS 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 "JSDOMWindowShell.h"
#include "Frame.h"
#include "GCController.h"
#include "JSDOMWindow.h"
#include "JSEventTarget.h"
#include "ScriptController.h"
#include <heap/StrongInlines.h>
#include <runtime/JSObject.h>
using namespace JSC;
namespace WebCore {
const ClassInfo JSDOMWindowShell::s_info = { "JSDOMWindowShell", &Base::s_info, 0, CREATE_METHOD_TABLE(JSDOMWindowShell) };
JSDOMWindowShell::JSDOMWindowShell(VM& vm, Structure* structure, DOMWrapperWorld& world)
: Base(vm, structure)
, m_world(world)
{
}
void JSDOMWindowShell::finishCreation(VM& vm, PassRefPtr<DOMWindow> window)
{
Base::finishCreation(vm);
ASSERT(inherits(info()));
setWindow(window);
}
void JSDOMWindowShell::destroy(JSCell* cell)
{
static_cast<JSDOMWindowShell*>(cell)->JSDOMWindowShell::~JSDOMWindowShell();
}
void JSDOMWindowShell::setWindow(VM& vm, JSDOMWindow* window)
{
ASSERT_ARG(window, window);
setTarget(vm, window);
structure()->setGlobalObject(vm, window);
GCController::singleton().garbageCollectSoon();
}
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()->wrapped());
// 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.)
VM& vm = JSDOMWindow::commonVM();
Structure* prototypeStructure = JSDOMWindowPrototype::createStructure(vm, 0, jsNull());
Strong<JSDOMWindowPrototype> prototype(vm, JSDOMWindowPrototype::create(vm, 0, prototypeStructure));
Structure* structure = JSDOMWindow::createStructure(vm, 0, prototype.get());
JSDOMWindow* jsDOMWindow = JSDOMWindow::create(vm, structure, *domWindow, this);
prototype->structure()->setGlobalObject(vm, jsDOMWindow);
prototype->structure()->setPrototypeWithoutTransition(vm, JSEventTarget::getPrototype(vm, jsDOMWindow));
setWindow(vm, jsDOMWindow);
ASSERT(jsDOMWindow->globalObject() == jsDOMWindow);
ASSERT(prototype->globalObject() == jsDOMWindow);
}
// ----
// JSDOMWindow methods
// ----
DOMWindow& JSDOMWindowShell::wrapped() const
{
return window()->wrapped();
}
// ----
// Conversion methods
// ----
JSValue toJS(ExecState* exec, Frame* frame)
{
if (!frame)
return jsNull();
return frame->script().windowShell(currentWorld(exec));
}
JSDOMWindowShell* toJSDOMWindowShell(Frame* frame, DOMWrapperWorld& world)
{
if (!frame)
return 0;
return frame->script().windowShell(world);
}
} // namespace WebCore
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