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1 /* | 1 /* |
2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved. | 2 * Copyright (C) 2006, 2007, 2008, 2009, 2010, 2011, 2012 Apple Inc. All rights reserved. |
3 * | 3 * |
4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. | 4 * Portions are Copyright (C) 1998 Netscape Communications Corporation. |
5 * | 5 * |
6 * Other contributors: | 6 * Other contributors: |
7 * Robert O'Callahan <roc+@cs.cmu.edu> | 7 * Robert O'Callahan <roc+@cs.cmu.edu> |
8 * David Baron <dbaron@fas.harvard.edu> | 8 * David Baron <dbaron@fas.harvard.edu> |
9 * Christian Biesinger <cbiesinger@web.de> | 9 * Christian Biesinger <cbiesinger@web.de> |
10 * Randall Jesup <rjesup@wgate.com> | 10 * Randall Jesup <rjesup@wgate.com> |
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2050 if (!result.hitTestRequest().listBased()) | 2050 if (!result.hitTestRequest().listBased()) |
2051 result = tempResult; | 2051 result = tempResult; |
2052 if (!depthSortDescendants) | 2052 if (!depthSortDescendants) |
2053 break; | 2053 break; |
2054 } | 2054 } |
2055 } | 2055 } |
2056 | 2056 |
2057 return resultLayer; | 2057 return resultLayer; |
2058 } | 2058 } |
2059 | 2059 |
2060 LayoutRect PaintLayer::computeReferenceBox() const | |
2061 { | |
2062 if (!layoutObject()->isBox()) { | |
2063 SECURITY_DCHECK(layoutObject()->isLayoutInline()); | |
2064 return toLayoutInline(layoutObject())->linesBoundingBox(); | |
2065 } | |
2066 return toLayoutBox(layoutObject())->borderBoxRect(); | |
2067 } | |
2068 | |
2060 bool PaintLayer::hitTestClippedOutByClipPath(PaintLayer* rootLayer, const HitTes tLocation& hitTestLocation) const | 2069 bool PaintLayer::hitTestClippedOutByClipPath(PaintLayer* rootLayer, const HitTes tLocation& hitTestLocation) const |
2061 { | 2070 { |
2062 if (!layoutObject()->hasClipPath()) | 2071 if (!layoutObject()->hasClipPath()) |
2063 return false; | 2072 return false; |
2064 ASSERT(isSelfPaintingLayer()); | 2073 DCHECK(isSelfPaintingLayer()); |
2065 | 2074 |
2066 LayoutPoint offsetToRootLayer; | 2075 LayoutPoint offsetToRootLayer; |
2067 if (rootLayer) | 2076 convertToLayerCoords(rootLayer, offsetToRootLayer); |
Stephen Chennney
2016/08/26 14:19:28
I infer that this method can handle a null rootLay
fs
2016/08/26 14:41:51
Yeah, my assumption is the latter (corroborated by
| |
2068 convertToLayerCoords(rootLayer, offsetToRootLayer); | 2077 LayoutRect referenceBox(computeReferenceBox()); |
2069 LayoutRect rootRelativeBounds = physicalBoundingBoxIncludingReflectionAndSta ckingChildren(offsetToRootLayer); | 2078 referenceBox.moveBy(offsetToRootLayer); |
2079 | |
2080 FloatPoint point(hitTestLocation.point()); | |
2070 | 2081 |
2071 ClipPathOperation* clipPathOperation = layoutObject()->style()->clipPath(); | 2082 ClipPathOperation* clipPathOperation = layoutObject()->style()->clipPath(); |
2072 ASSERT(clipPathOperation); | 2083 DCHECK(clipPathOperation); |
2073 if (clipPathOperation->type() == ClipPathOperation::SHAPE) { | 2084 if (clipPathOperation->type() == ClipPathOperation::SHAPE) { |
2074 ShapeClipPathOperation* clipPath = toShapeClipPathOperation(clipPathOper ation); | 2085 ShapeClipPathOperation* clipPath = toShapeClipPathOperation(clipPathOper ation); |
2075 if (!clipPath->path(FloatRect(rootRelativeBounds)).contains(FloatPoint(h itTestLocation.point()))) | 2086 return !clipPath->path(FloatRect(referenceBox)).contains(point); |
2076 return true; | |
2077 } else { | |
2078 ASSERT(clipPathOperation->type() == ClipPathOperation::REFERENCE); | |
2079 ReferenceClipPathOperation* referenceClipPathOperation = toReferenceClip PathOperation(clipPathOperation); | |
2080 Element* element = layoutObject()->document().getElementById(referenceCl ipPathOperation->fragment()); | |
2081 if (isSVGClipPathElement(element) && element->layoutObject()) { | |
2082 LayoutSVGResourceClipper* clipper = toLayoutSVGResourceClipper(toLay outSVGResourceContainer(element->layoutObject())); | |
2083 if (!clipper->hitTestClipContent(FloatRect(rootRelativeBounds), Floa tPoint(hitTestLocation.point()))) | |
2084 return true; | |
2085 } | |
2086 } | 2087 } |
2087 | 2088 DCHECK_EQ(clipPathOperation->type(), ClipPathOperation::REFERENCE); |
2088 return false; | 2089 ReferenceClipPathOperation* referenceClipPathOperation = toReferenceClipPath Operation(clipPathOperation); |
2090 Element* element = layoutObject()->document().getElementById(referenceClipPa thOperation->fragment()); | |
2091 if (!isSVGClipPathElement(element) || !element->layoutObject()) | |
2092 return false; | |
2093 LayoutSVGResourceClipper* clipper = | |
2094 toLayoutSVGResourceClipper(toLayoutSVGResourceContainer(element->layoutO bject())); | |
2095 // If the clipPath is using "userspace on use" units, then the origin of | |
2096 // the coordinate system is the top-left of the reference box, so adjust | |
2097 // the point accordingly. | |
2098 if (clipper->clipPathUnits() == SVGUnitTypes::kSvgUnitTypeUserspaceonuse) | |
2099 point.moveBy(-offsetToRootLayer); | |
2100 return !clipper->hitTestClipContent(FloatRect(referenceBox), point); | |
2089 } | 2101 } |
2090 | 2102 |
2091 bool PaintLayer::intersectsDamageRect(const LayoutRect& layerBounds, const Layou tRect& damageRect, const LayoutPoint& offsetFromRoot) const | 2103 bool PaintLayer::intersectsDamageRect(const LayoutRect& layerBounds, const Layou tRect& damageRect, const LayoutPoint& offsetFromRoot) const |
2092 { | 2104 { |
2093 // Always examine the canvas and the root. | 2105 // Always examine the canvas and the root. |
2094 // FIXME: Could eliminate the isDocumentElement() check if we fix background painting so that the LayoutView | 2106 // FIXME: Could eliminate the isDocumentElement() check if we fix background painting so that the LayoutView |
2095 // paints the root's background. | 2107 // paints the root's background. |
2096 if (isRootLayer() || layoutObject()->isDocumentElement()) | 2108 if (isRootLayer() || layoutObject()->isDocumentElement()) |
2097 return true; | 2109 return true; |
2098 | 2110 |
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2935 | 2947 |
2936 void showLayerTree(const blink::LayoutObject* layoutObject) | 2948 void showLayerTree(const blink::LayoutObject* layoutObject) |
2937 { | 2949 { |
2938 if (!layoutObject) { | 2950 if (!layoutObject) { |
2939 fprintf(stderr, "Cannot showLayerTree. Root is (nil)\n"); | 2951 fprintf(stderr, "Cannot showLayerTree. Root is (nil)\n"); |
2940 return; | 2952 return; |
2941 } | 2953 } |
2942 showLayerTree(layoutObject->enclosingLayer()); | 2954 showLayerTree(layoutObject->enclosingLayer()); |
2943 } | 2955 } |
2944 #endif | 2956 #endif |
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