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/**
* Copyright (C) 2003-2023 Apple Inc. All rights reserved.
* Copyright (C) 2023 Igalia S.L.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
#pragma once
#include "RenderElementInlines.h"
#include "RenderLayer.h"
#include "RenderObjectInlines.h"
#include "RenderSVGResourceClipper.h"
namespace WebCore {
inline bool RenderLayer::canPaintTransparencyWithSetOpacity() const { return isBitmapOnly() && !hasNonOpacityTransparency(); }
inline bool RenderLayer::hasBackdropFilter() const { return renderer().hasBackdropFilter(); }
inline bool RenderLayer::hasFilter() const { return renderer().hasFilter(); }
inline bool RenderLayer::hasPerspective() const { return renderer().style().hasPerspective(); }
inline bool RenderLayer::isTransformed() const { return renderer().isTransformed(); }
inline bool RenderLayer::isTransparent() const { return renderer().isTransparent() || renderer().hasMask(); }
inline bool RenderLayer::overlapBoundsIncludeChildren() const { return hasFilter() && renderer().style().filter().hasFilterThatMovesPixels(); }
inline bool RenderLayer::preserves3D() const { return renderer().style().preserves3D(); }
inline int RenderLayer::zIndex() const { return renderer().style().usedZIndex(); }
inline bool RenderLayer::hasBlendMode() const { return renderer().hasBlendMode(); } // FIXME: Why ask the renderer this given we have m_blendMode?
inline bool RenderLayer::canUseOffsetFromAncestor() const
{
// FIXME: This really needs to know if there are transforms on this layer and any of the layers between it and the ancestor in question.
return !isTransformed() && !renderer().isRenderOrLegacyRenderSVGRoot();
}
inline bool RenderLayer::paintsWithTransparency(OptionSet<PaintBehavior> paintBehavior) const
{
if (!renderer().isTransparent() && !hasNonOpacityTransparency())
return false;
return (paintBehavior & PaintBehavior::FlattenCompositingLayers) || !isComposited();
}
inline bool RenderLayer::hasNonOpacityTransparency() const
{
if (renderer().hasMask())
return true;
if (hasBlendMode() || isolatesBlending())
return true;
#if ENABLE(LAYER_BASED_SVG_ENGINE)
if (!renderer().document().settings().layerBasedSVGEngineEnabled())
return false;
// SVG clip-paths may use clipping masks, if so, flag this layer as transparent.
if (auto* svgClipper = renderer().svgClipperResourceFromStyle(); svgClipper && !svgClipper->shouldApplyPathClipping())
return true;
#endif
return false;
}
#if ENABLE(LAYER_BASED_SVG_ENGINE)
inline RenderSVGHiddenContainer* RenderLayer::enclosingSVGHiddenOrResourceContainer() const
{
return m_enclosingSVGHiddenOrResourceContainer.get();
}
#endif
} // namespace WebCore
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