blob: f9d911985a2064dfdc4802cf12f81f0daff8ed8d [file] [log] [blame]
/*
* Copyright (C) 2017 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 "PerformanceLoggingClient.h"
#include <wtf/text/StringBuilder.h>
namespace WebCore {
String PerformanceLoggingClient::synchronousScrollingReasonsAsString(OptionSet<SynchronousScrollingReason> synchronousScrollingReasons)
{
if (synchronousScrollingReasons.isEmpty())
return emptyString();
StringBuilder reasons;
if (synchronousScrollingReasons & SynchronousScrollingReason::ForcedOnMainThread)
reasons.appendLiteral("forced,");
if (synchronousScrollingReasons & SynchronousScrollingReason::HasSlowRepaintObjects)
reasons.appendLiteral("slow-repaint objects,");
if (synchronousScrollingReasons & SynchronousScrollingReason::HasViewportConstrainedObjectsWithoutSupportingFixedLayers)
reasons.appendLiteral("viewport-constrained objects,");
if (synchronousScrollingReasons & SynchronousScrollingReason::HasNonLayerViewportConstrainedObjects)
reasons.appendLiteral("non-layer viewport-constrained objects,");
if (synchronousScrollingReasons & SynchronousScrollingReason::IsImageDocument)
reasons.appendLiteral("image document,");
// Strip the trailing comma.
return reasons.toString().left(reasons.length() - 1);
}
} // namespace WebCore