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/*
* Copyright (C) 2000 Harri Porten (porten@kde.org)
* Copyright (C) 2006 Jon Shier (jshier@iastate.edu)
* Copyright (C) 2003, 2004, 2005, 2006, 2007, 2008, 2009 Apple Inc. All rights reseved.
* Copyright (C) 2006 Alexey Proskuryakov (ap@webkit.org)
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
#include "config.h"
#include "JSDOMWindowBase.h"
#include "CString.h"
#include "Console.h"
#include "DOMWindow.h"
#include "Frame.h"
#include "InspectorController.h"
#include "JSDOMWindowCustom.h"
#include "JSNode.h"
#include "Logging.h"
#include "Page.h"
#include "ScriptController.h"
#include "SecurityOrigin.h"
#include "Settings.h"
using namespace JSC;
namespace WebCore {
const ClassInfo JSDOMWindowBase::s_info = { "Window", 0, 0, 0 };
JSDOMWindowBase::JSDOMWindowBaseData::JSDOMWindowBaseData(PassRefPtr<DOMWindow> window, JSDOMWindowShell* shell)
: impl(window)
, shell(shell)
{
}
JSDOMWindowBase::JSDOMWindowBase(PassRefPtr<Structure> structure, PassRefPtr<DOMWindow> window, JSDOMWindowShell* shell)
: JSDOMGlobalObject(structure, new JSDOMWindowBaseData(window, shell), shell)
{
GlobalPropertyInfo staticGlobals[] = {
GlobalPropertyInfo(Identifier(globalExec(), "document"), jsNull(), DontDelete | ReadOnly),
GlobalPropertyInfo(Identifier(globalExec(), "window"), d()->shell, DontDelete | ReadOnly)
};
addStaticGlobals(staticGlobals, sizeof(staticGlobals) / sizeof(GlobalPropertyInfo));
}
void JSDOMWindowBase::updateDocument()
{
ASSERT(d()->impl->document());
ExecState* exec = globalExec();
symbolTablePutWithAttributes(Identifier(exec, "document"), toJS(exec, this, d()->impl->document()), DontDelete | ReadOnly);
}
ScriptExecutionContext* JSDOMWindowBase::scriptExecutionContext() const
{
return d()->impl->document();
}
String JSDOMWindowBase::crossDomainAccessErrorMessage(const JSGlobalObject* other) const
{
KURL originURL = asJSDOMWindow(other)->impl()->url();
KURL targetURL = impl()->frame()->document()->url();
if (originURL.isNull() || targetURL.isNull())
return String();
// FIXME: this error message should contain more specifics of why the same origin check has failed.
return String::format("Unsafe JavaScript attempt to access frame with URL %s from frame with URL %s. Domains, protocols and ports must match.\n",
targetURL.string().utf8().data(), originURL.string().utf8().data());
}
void JSDOMWindowBase::printErrorMessage(const String& message) const
{
if (message.isEmpty())
return;
Frame* frame = impl()->frame();
if (!frame)
return;
Settings* settings = frame->settings();
if (!settings)
return;
if (settings->privateBrowsingEnabled())
return;
impl()->console()->addMessage(JSMessageSource, LogMessageType, ErrorMessageLevel, message, 1, String()); // FIXME: provide a real line number and source URL.
}
ExecState* JSDOMWindowBase::globalExec()
{
// We need to make sure that any script execution happening in this
// frame does not destroy it
if (Frame *frame = impl()->frame())
frame->keepAlive();
return Base::globalExec();
}
bool JSDOMWindowBase::supportsProfiling() const
{
#if !ENABLE(JAVASCRIPT_DEBUGGER)
return false;
#else
Frame* frame = impl()->frame();
if (!frame)
return false;
Page* page = frame->page();
if (!page)
return false;
return page->inspectorController()->profilerEnabled();
#endif
}
bool JSDOMWindowBase::shouldInterruptScript() const
{
ASSERT(impl()->frame());
Page* page = impl()->frame()->page();
// See <rdar://problem/5479443>. We don't think that page can ever be NULL
// in this case, but if it is, we've gotten into a state where we may have
// hung the UI, with no way to ask the client whether to cancel execution.
// For now, our solution is just to cancel execution no matter what,
// ensuring that we never hang. We might want to consider other solutions
// if we discover problems with this one.
ASSERT(page);
if (!page)
return true;
return page->chrome()->shouldInterruptJavaScript();
}
void JSDOMWindowBase::willRemoveFromWindowShell()
{
setCurrentEvent(0);
}
JSObject* JSDOMWindowBase::toThisObject(ExecState*) const
{
return shell();
}
JSDOMWindowShell* JSDOMWindowBase::shell() const
{
return d()->shell;
}
JSGlobalData* JSDOMWindowBase::commonJSGlobalData()
{
static JSGlobalData* globalData;
if (!globalData) {
globalData = JSGlobalData::createLeaked().releaseRef();
globalData->timeoutChecker.setTimeoutInterval(10000); // 10 seconds
}
return globalData;
}
// JSDOMGlobalObject* is ignored, accesing a window in any context will
// use that DOMWindow's prototype chain.
JSValue toJS(ExecState* exec, JSDOMGlobalObject*, DOMWindow* domWindow)
{
return toJS(exec, domWindow);
}
JSValue toJS(ExecState*, DOMWindow* domWindow)
{
if (!domWindow)
return jsNull();
Frame* frame = domWindow->frame();
if (!frame)
return jsNull();
return frame->script()->windowShell();
}
JSDOMWindow* toJSDOMWindow(Frame* frame)
{
if (!frame)
return 0;
return frame->script()->windowShell()->window();
}
JSDOMWindow* toJSDOMWindow(JSValue value)
{
if (!value.isObject())
return 0;
const ClassInfo* classInfo = asObject(value)->classInfo();
if (classInfo == &JSDOMWindow::s_info)
return static_cast<JSDOMWindow*>(asObject(value));
if (classInfo == &JSDOMWindowShell::s_info)
return static_cast<JSDOMWindowShell*>(asObject(value))->window();
return 0;
}
} // namespace WebCore
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