90 lines
3.0 KiB
C++
90 lines
3.0 KiB
C++
/*
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* Copyright (C) 1999 Lars Knoll (knoll@kde.org)
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* (C) 1999 Antti Koivisto (koivisto@kde.org)
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* Copyright (C) 2003, 2006, 2007, 2009 Apple Inc. All rights reserved.
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* Copyright (C) 2010, 2012 Google Inc. All rights reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public License
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* along with this library; see the file COPYING.LIB. If not, write to
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* the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
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* Boston, MA 02110-1301, USA.
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*/
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#pragma once
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#include "RenderElement.h"
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namespace WebCore {
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class KeyframeList;
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class RenderLayer;
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struct LayerRepaintRects {
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LayoutRect clippedOverflowRect;
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LayoutRect outlineBoundsRect;
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};
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class RenderLayerModelObject : public RenderElement {
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WTF_MAKE_ISO_ALLOCATED(RenderLayerModelObject);
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public:
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virtual ~RenderLayerModelObject();
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void destroyLayer();
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bool hasSelfPaintingLayer() const;
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RenderLayer* layer() const { return m_layer.get(); }
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void styleWillChange(StyleDifference, const RenderStyle& newStyle) override;
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void styleDidChange(StyleDifference, const RenderStyle* oldStyle) override;
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virtual void updateFromStyle() { }
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virtual bool requiresLayer() const = 0;
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// Returns true if the background is painted opaque in the given rect.
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// The query rect is given in local coordinate system.
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virtual bool backgroundIsKnownToBeOpaqueInRect(const LayoutRect&) const { return false; }
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virtual bool isScrollableOrRubberbandableBox() const { return false; }
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bool shouldPlaceVerticalScrollbarOnLeft() const;
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std::optional<LayerRepaintRects> layerRepaintRects() const;
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bool startAnimation(double timeOffset, const Animation&, const KeyframeList&) override;
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void animationPaused(double timeOffset, const String& name) override;
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void animationFinished(const String& name) override;
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void transformRelatedPropertyDidChange() override;
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void suspendAnimations(MonotonicTime = MonotonicTime()) override;
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protected:
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RenderLayerModelObject(Element&, RenderStyle&&, BaseTypeFlags);
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RenderLayerModelObject(Document&, RenderStyle&&, BaseTypeFlags);
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void createLayer();
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void willBeDestroyed() override;
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private:
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std::unique_ptr<RenderLayer> m_layer;
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// Used to store state between styleWillChange and styleDidChange
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static bool s_wasFloating;
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static bool s_hadLayer;
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static bool s_hadTransform;
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static bool s_layerWasSelfPainting;
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};
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} // namespace WebCore
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SPECIALIZE_TYPE_TRAITS_RENDER_OBJECT(RenderLayerModelObject, isRenderLayerModelObject())
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