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/*
* Copyright (C) 2016 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.
*
* THIS SOFTWARE IS PROVIDED BY APPLE INC. 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 INC. 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 "JSDOMWindowProperties.h"
#include "Frame.h"
#include "HTMLDocument.h"
#include "JSDOMBinding.h"
#include "JSDOMBindingSecurity.h"
#include "JSDOMWindowBase.h"
#include "JSElement.h"
#include "JSHTMLCollection.h"
namespace WebCore {
using namespace JSC;
const ClassInfo JSDOMWindowProperties::s_info = { "WindowProperties", &Base::s_info, 0, CREATE_METHOD_TABLE(JSDOMWindowProperties) };
static bool jsDOMWindowPropertiesGetOwnPropertySlotNamedItemGetter(JSDOMWindowProperties* thisObject, Frame& frame, ExecState* exec, PropertyName propertyName, PropertySlot& slot)
{
// Check for child frames by name before built-in properties to match Mozilla. This does
// not match IE, but some sites end up naming frames things that conflict with window
// properties that are in Moz but not IE. Since we have some of these, we have to do it
// the Moz way.
if (auto* scopedChild = frame.tree().scopedChild(propertyNameToAtomicString(propertyName))) {
slot.setValue(thisObject, ReadOnly | DontDelete | DontEnum, toJS(exec, scopedChild->document()->domWindow()));
return true;
}
if (!BindingSecurity::shouldAllowAccessToFrame(exec, &frame, ThrowSecurityError))
return false;
// FIXME: Search the whole frame hierarchy somewhere around here.
// We need to test the correct priority order.
// Allow shortcuts like 'Image1' instead of document.images.Image1
Document* document = frame.document();
if (is<HTMLDocument>(*document)) {
auto& htmlDocument = downcast<HTMLDocument>(*document);
auto* atomicPropertyName = propertyName.publicName();
if (atomicPropertyName && htmlDocument.hasWindowNamedItem(*atomicPropertyName)) {
JSValue namedItem;
if (UNLIKELY(htmlDocument.windowNamedItemContainsMultipleElements(*atomicPropertyName))) {
Ref<HTMLCollection> collection = document->windowNamedItems(atomicPropertyName);
ASSERT(collection->length() > 1);
namedItem = toJS(exec, thisObject->globalObject(), collection);
} else
namedItem = toJS(exec, thisObject->globalObject(), htmlDocument.windowNamedItem(*atomicPropertyName));
slot.setValue(thisObject, ReadOnly | DontDelete | DontEnum, namedItem);
return true;
}
}
return false;
}
bool JSDOMWindowProperties::getOwnPropertySlot(JSObject* object, ExecState* state, PropertyName propertyName, PropertySlot& slot)
{
auto* thisObject = jsCast<JSDOMWindowProperties*>(object);
ASSERT_GC_OBJECT_INHERITS(thisObject, info());
if (Base::getOwnPropertySlot(thisObject, state, propertyName, slot))
return true;
JSValue proto = thisObject->getPrototypeDirect();
if (proto.isObject() && jsCast<JSObject*>(proto)->hasProperty(state, propertyName))
return false;
auto& window = jsCast<JSDOMWindowBase*>(thisObject->globalObject())->wrapped();
if (auto* frame = window.frame())
return jsDOMWindowPropertiesGetOwnPropertySlotNamedItemGetter(thisObject, *frame, state, propertyName, slot);
return false;
}
bool JSDOMWindowProperties::getOwnPropertySlotByIndex(JSObject* object, ExecState* state, unsigned index, PropertySlot& slot)
{
return getOwnPropertySlot(object, state, Identifier::from(state, index), slot);
}
} // namespace WebCore
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