blob: be0b8658229bb2871b12a08677790ae72601e5e3 [file] [log] [blame]
/*
* Copyright (C) 2019-2021 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 "JSUndoItem.h"
#include <JavaScriptCore/JSCJSValueInlines.h>
namespace WebCore {
template<typename Visitor>
void JSUndoItem::visitAdditionalChildren(Visitor& visitor)
{
wrapped().undoHandler().visitJSFunction(visitor);
wrapped().redoHandler().visitJSFunction(visitor);
}
DEFINE_VISIT_ADDITIONAL_CHILDREN(JSUndoItem);
bool JSUndoItemOwner::isReachableFromOpaqueRoots(JSC::Handle<JSC::Unknown> handle, void*, JSC::AbstractSlotVisitor& visitor, const char** reason)
{
if (UNLIKELY(reason))
*reason = "Document is an opaque root.";
auto* documentForUndoItem = JSC::jsCast<JSUndoItem*>(handle.slot()->asCell())->wrapped().document();
return documentForUndoItem && visitor.containsOpaqueRoot(documentForUndoItem);
}
} // namespace WebCore