LayoutMilestones.h 2.02 KB
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/*
 * Copyright (C) 2012 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.
 */

#ifndef LayoutMilestones_h
#define LayoutMilestones_h

namespace WebCore {

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// FIXME: Some of these milestones are about layout, and others are about painting.
// We should either re-name them to something more generic, or split them into
// two enums -- one for painting and one for layout.
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enum LayoutMilestoneFlag {
    DidFirstLayout = 1 << 0,
    DidFirstVisuallyNonEmptyLayout = 1 << 1,
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    DidHitRelevantRepaintedObjectsAreaThreshold = 1 << 2,
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    DidFirstFlushForHeaderLayer = 1 << 3,
    DidFirstLayoutAfterSuppressedIncrementalRendering = 1 << 4,
    DidFirstPaintAfterSuppressedIncrementalRendering = 1 << 5
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};

typedef unsigned LayoutMilestones;

} // namespace WebCore

#endif // LayoutMilestones_h