void InlineFlowBoxPainter::paintBoxDecorationBackground(const PaintInfo& paintInfo, const LayoutPoint& paintOffset, const LayoutRect& cullRect)
{
ASSERT(paintInfo.phase == PaintPhaseForeground);
if (m_inlineFlowBox.lineLayoutItem().style()->visibility() != VISIBLE)
return;
// You can use p::first-line to specify a background. If so, the root line boxes for
// a line may actually have to paint a background.
LayoutObject* inlineFlowBoxLayoutObject = LineLayoutAPIShim::layoutObjectFrom(m_inlineFlowBox.lineLayoutItem());
const ComputedStyle* styleToUse = m_inlineFlowBox.lineLayoutItem().style(m_inlineFlowBox.isFirstLineStyle());
bool shouldPaintBoxDecorationBackground;
if (m_inlineFlowBox.parent())
shouldPaintBoxDecorationBackground = inlineFlowBoxLayoutObject->hasBoxDecorationBackground();
else
shouldPaintBoxDecorationBackground = m_inlineFlowBox.isFirstLineStyle() && styleToUse != m_inlineFlowBox.lineLayoutItem().style();
if (!shouldPaintBoxDecorationBackground)
return;
if (DrawingRecorder::useCachedDrawingIfPossible(paintInfo.context, m_inlineFlowBox, DisplayItem::BoxDecorationBackground))
return;
DrawingRecorder recorder(paintInfo.context, m_inlineFlowBox, DisplayItem::BoxDecorationBackground, pixelSnappedIntRect(cullRect));
LayoutRect frameRect = frameRectClampedToLineTopAndBottomIfNeeded();
// Move x/y to our coordinates.
LayoutRect localRect(frameRect);
m_inlineFlowBox.flipForWritingMode(localRect);
LayoutPoint adjustedPaintOffset = paintOffset + localRect.location();
LayoutRect adjustedFrameRect = LayoutRect(adjustedPaintOffset, frameRect.size());
IntRect adjustedClipRect;
BorderPaintingType borderPaintingType = getBorderPaintType(adjustedFrameRect, adjustedClipRect);
// Shadow comes first and is behind the background and border.
if (!m_inlineFlowBox.boxModelObject().boxShadowShouldBeAppliedToBackground(BackgroundBleedNone, &m_inlineFlowBox))
paintBoxShadow(paintInfo, *styleToUse, Normal, adjustedFrameRect);
Color backgroundColor = inlineFlowBoxLayoutObject->resolveColor(*styleToUse, CSSPropertyBackgroundColor);
paintFillLayers(paintInfo, backgroundColor, styleToUse->backgroundLayers(), adjustedFrameRect);
paintBoxShadow(paintInfo, *styleToUse, Inset, adjustedFrameRect);
switch (borderPaintingType) {
case DontPaintBorders:
break;
case PaintBordersWithoutClip:
BoxPainter::paintBorder(*toLayoutBoxModelObject(LineLayoutAPIShim::layoutObjectFrom(m_inlineFlowBox.boxModelObject())), paintInfo, adjustedFrameRect, m_inlineFlowBox.lineLayoutItem().styleRef(m_inlineFlowBox.isFirstLineStyle()), BackgroundBleedNone, m_inlineFlowBox.includeLogicalLeftEdge(), m_inlineFlowBox.includeLogicalRightEdge());
break;
case PaintBordersWithClip:
// FIXME: What the heck do we do with RTL here? The math we're using is obviously not right,
// but it isn't even clear how this should work at all.
LayoutRect imageStripPaintRect = paintRectForImageStrip(adjustedPaintOffset, frameRect.size(), LTR);
GraphicsContextStateSaver stateSaver(paintInfo.context);
paintInfo.context.clip(adjustedClipRect);
BoxPainter::paintBorder(*toLayoutBoxModelObject(LineLayoutAPIShim::layoutObjectFrom(m_inlineFlowBox.boxModelObject())), paintInfo, imageStripPaintRect, m_inlineFlowBox.lineLayoutItem().styleRef(m_inlineFlowBox.isFirstLineStyle()));
break;
}
}
TEST_F(PaintLayerScrollableAreaTest, OpaqueLayersPromotedOnStyleChange) {
RuntimeEnabledFeatures::setCompositeOpaqueScrollersEnabled(true);
setBodyInnerHTML(
"<style>"
"#scroller { overflow: scroll; height: 200px; width: 200px; background: "
"rgba(255,255,255,0.5) local content-box; }"
"#scrolled { height: 300px; }"
"</style>"
"<div id=\"scroller\"><div id=\"scrolled\"></div></div>");
document().view()->updateAllLifecyclePhases();
EXPECT_TRUE(RuntimeEnabledFeatures::compositeOpaqueScrollersEnabled());
Element* scroller = document().getElementById("scroller");
PaintLayer* paintLayer =
toLayoutBoxModelObject(scroller->layoutObject())->layer();
ASSERT_TRUE(paintLayer);
EXPECT_FALSE(paintLayer->needsCompositedScrolling());
// Change the background to transparent
scroller->setAttribute(HTMLNames::styleAttr,
"background: white local content-box;");
document().view()->updateAllLifecyclePhases();
paintLayer = toLayoutBoxModelObject(scroller->layoutObject())->layer();
ASSERT_TRUE(paintLayer);
EXPECT_TRUE(paintLayer->needsCompositedScrolling());
EXPECT_TRUE(paintLayer->graphicsLayerBacking());
ASSERT_TRUE(paintLayer->graphicsLayerBackingForScrolling());
EXPECT_TRUE(paintLayer->graphicsLayerBackingForScrolling()->contentsOpaque());
}
PaintLayer& PaintInvalidationState::enclosingSelfPaintingLayer(const LayoutObject& layoutObject) const
{
if (layoutObject.hasLayer() && toLayoutBoxModelObject(layoutObject).hasSelfPaintingLayer())
return *toLayoutBoxModelObject(layoutObject).layer();
return m_enclosingSelfPaintingLayer;
}
TEST_P(BoxPaintInvalidatorTest,
CompositedBackgroundAttachmentLocalGradientResize) {
enableCompositing();
Element* target = document().getElementById("target");
target->setAttribute(HTMLNames::classAttr,
"border local-background gradient");
target->setAttribute(HTMLNames::styleAttr, "will-change: transform");
target->setInnerHTML(
"<div id='child' style='width: 500px; height: 500px'></div>",
ASSERT_NO_EXCEPTION);
Element* child = document().getElementById("child");
document().view()->updateAllLifecyclePhases();
// Resize the content.
document().view()->setTracksPaintInvalidations(true);
child->setAttribute(HTMLNames::styleAttr, "width: 500px; height: 1000px");
document().view()->updateAllLifecyclePhases();
GraphicsLayer* containerLayer = toLayoutBoxModelObject(target->layoutObject())
->layer()
->graphicsLayerBacking();
GraphicsLayer* contentsLayer = toLayoutBoxModelObject(target->layoutObject())
->layer()
->graphicsLayerBackingForScrolling();
// No invalidation on the container layer.
EXPECT_FALSE(containerLayer->getRasterInvalidationTracking());
// Full invalidation of background on contents layer because the gradient
// background is resized.
const auto& contentsRasterInvalidations =
contentsLayer->getRasterInvalidationTracking()
->trackedRasterInvalidations;
ASSERT_EQ(1u, contentsRasterInvalidations.size());
EXPECT_EQ(IntRect(0, 0, 500, 1000), contentsRasterInvalidations[0].rect);
EXPECT_EQ(static_cast<const DisplayItemClient*>(target->layoutObject()),
contentsRasterInvalidations[0].client);
EXPECT_EQ(PaintInvalidationBackgroundOnScrollingContentsLayer,
contentsRasterInvalidations[0].reason);
document().view()->setTracksPaintInvalidations(false);
// Resize the container.
document().view()->setTracksPaintInvalidations(true);
target->setAttribute(HTMLNames::styleAttr,
"will-change: transform; height: 200px");
document().view()->updateAllLifecyclePhases();
EXPECT_FALSE(contentsLayer->getRasterInvalidationTracking());
// Full invalidation on the container layer.
const auto& containerRasterInvalidations =
containerLayer->getRasterInvalidationTracking()
->trackedRasterInvalidations;
ASSERT_EQ(1u, containerRasterInvalidations.size());
EXPECT_EQ(IntRect(0, 0, 70, 240), containerRasterInvalidations[0].rect);
EXPECT_EQ(static_cast<const DisplayItemClient*>(target->layoutObject()),
containerRasterInvalidations[0].client);
EXPECT_EQ(PaintInvalidationBorderBoxChange,
containerRasterInvalidations[0].reason);
document().view()->setTracksPaintInvalidations(false);
}
// Test that opacity applied to the scroller or an ancestor will cause the
// scrolling contents layer to not be promoted.
TEST_F(PaintLayerScrollableAreaTest, OnlyOpaqueLayersPromoted) {
ScopedCompositeOpaqueScrollersForTest compositeOpaqueScrollers(true);
setBodyInnerHTML(
"<style>"
"#scroller { overflow: scroll; height: 200px; width: 200px; background: "
"white local content-box; }"
"#scrolled { height: 300px; }"
"</style>"
"<div id=\"parent\">"
" <div id=\"scroller\"><div id=\"scrolled\"></div></div>"
"</div>");
document().view()->updateAllLifecyclePhases();
EXPECT_TRUE(RuntimeEnabledFeatures::compositeOpaqueScrollersEnabled());
Element* parent = document().getElementById("parent");
Element* scroller = document().getElementById("scroller");
PaintLayer* paintLayer =
toLayoutBoxModelObject(scroller->layoutObject())->layer();
ASSERT_TRUE(paintLayer);
EXPECT_TRUE(paintLayer->needsCompositedScrolling());
EXPECT_TRUE(paintLayer->graphicsLayerBacking());
ASSERT_TRUE(paintLayer->graphicsLayerBackingForScrolling());
EXPECT_TRUE(paintLayer->graphicsLayerBackingForScrolling()->contentsOpaque());
// Change the parent to be partially translucent.
parent->setAttribute(HTMLNames::styleAttr, "opacity: 0.5;");
document().view()->updateAllLifecyclePhases();
paintLayer = toLayoutBoxModelObject(scroller->layoutObject())->layer();
ASSERT_TRUE(paintLayer);
EXPECT_FALSE(paintLayer->needsCompositedScrolling());
EXPECT_FALSE(paintLayer->graphicsLayerBacking());
// Change the parent to be opaque again.
parent->setAttribute(HTMLNames::styleAttr, "opacity: 1;");
document().view()->updateAllLifecyclePhases();
paintLayer = toLayoutBoxModelObject(scroller->layoutObject())->layer();
ASSERT_TRUE(paintLayer);
EXPECT_TRUE(paintLayer->needsCompositedScrolling());
EXPECT_TRUE(paintLayer->graphicsLayerBacking());
ASSERT_TRUE(paintLayer->graphicsLayerBackingForScrolling());
EXPECT_TRUE(paintLayer->graphicsLayerBackingForScrolling()->contentsOpaque());
// Make the scroller translucent.
scroller->setAttribute(HTMLNames::styleAttr, "opacity: 0.5");
document().view()->updateAllLifecyclePhases();
paintLayer = toLayoutBoxModelObject(scroller->layoutObject())->layer();
ASSERT_TRUE(paintLayer);
EXPECT_FALSE(paintLayer->needsCompositedScrolling());
EXPECT_FALSE(paintLayer->graphicsLayerBacking());
}
static void deriveBorderBoxFromContainerContext(const LayoutObject& object, PaintPropertyTreeBuilderContext& context)
{
if (!object.isBoxModelObject())
return;
const LayoutBoxModelObject& boxModelObject = toLayoutBoxModelObject(object);
// TODO(trchen): There is some insanity going on with tables. Double check results.
switch (object.styleRef().position()) {
case StaticPosition:
break;
case RelativePosition:
context.paintOffset += boxModelObject.offsetForInFlowPosition();
break;
case AbsolutePosition:
context.currentTransform = context.transformForOutOfFlowPositioned;
context.paintOffset = context.paintOffsetForOutOfFlowPositioned;
context.currentClip = context.clipForOutOfFlowPositioned;
break;
case StickyPosition:
context.paintOffset += boxModelObject.offsetForInFlowPosition();
break;
case FixedPosition:
context.currentTransform = context.transformForFixedPositioned;
context.paintOffset = context.paintOffsetForFixedPositioned;
context.currentClip = context.clipForFixedPositioned;
break;
default:
ASSERT_NOT_REACHED();
}
if (boxModelObject.isBox())
context.paintOffset += toLayoutBox(boxModelObject).locationOffset();
}
static LayoutBoxModelObject* enclosingBoxModelObject(LayoutObject* object) {
while (object && !object->isBoxModelObject())
object = object->parent();
if (!object)
return nullptr;
return toLayoutBoxModelObject(object);
}
void PaintPropertyTreeBuilder::updatePaintOffsetTranslation(const LayoutObject& object, PaintPropertyTreeBuilderContext& context)
{
if (object.isBoxModelObject()) {
// TODO(trchen): Eliminate PaintLayer dependency.
PaintLayer* layer = toLayoutBoxModelObject(object).layer();
if (!layer || !layer->paintsWithTransform(GlobalPaintNormalPhase))
return;
}
if (context.paintOffset == LayoutPoint())
return;
// We should use the same subpixel paint offset values for snapping regardless of whether a
// transform is present. If there is a transform we round the paint offset but keep around
// the residual fractional component for the transformed content to paint with.
// In spv1 this was called "subpixel accumulation". For more information, see
// PaintLayer::subpixelAccumulation() and PaintLayerPainter::paintFragmentByApplyingTransform.
IntPoint roundedPaintOffset = roundedIntPoint(context.paintOffset);
LayoutPoint fractionalPaintOffset = LayoutPoint(context.paintOffset - roundedPaintOffset);
RefPtr<TransformPaintPropertyNode> paintOffsetTranslation = TransformPaintPropertyNode::create(
TransformationMatrix().translate(roundedPaintOffset.x(), roundedPaintOffset.y()),
FloatPoint3D(), context.currentTransform);
context.currentTransform = paintOffsetTranslation.get();
context.paintOffset = fractionalPaintOffset;
object.getMutableForPainting().ensureObjectPaintProperties().setPaintOffsetTranslation(paintOffsetTranslation.release());
}
bool CompositorAnimations::startAnimationOnCompositor(const Element& element, int group, double startTime, double timeOffset, const Timing& timing, const AnimationPlayer& player, const AnimationEffect& effect, Vector<int>& startedAnimationIds, double playerPlaybackRate)
{
ASSERT(startedAnimationIds.isEmpty());
ASSERT(isCandidateForAnimationOnCompositor(timing, element, &player, effect, playerPlaybackRate));
ASSERT(canStartAnimationOnCompositor(element));
const KeyframeEffectModelBase& keyframeEffect = toKeyframeEffectModelBase(effect);
DeprecatedPaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
ASSERT(layer);
Vector<OwnPtr<WebCompositorAnimation>> animations;
CompositorAnimationsImpl::getAnimationOnCompositor(timing, group, startTime, timeOffset, keyframeEffect, animations, playerPlaybackRate);
ASSERT(!animations.isEmpty());
for (auto& animation : animations) {
int id = animation->id();
if (RuntimeEnabledFeatures::compositorAnimationTimelinesEnabled()) {
WebCompositorAnimationPlayer* compositorPlayer = player.compositorPlayer();
ASSERT(compositorPlayer);
compositorPlayer->addAnimation(animation.leakPtr());
} else if (!layer->compositedDeprecatedPaintLayerMapping()->mainGraphicsLayer()->addAnimation(animation.release())) {
// FIXME: We should know ahead of time whether these animations can be started.
for (int startedAnimationId : startedAnimationIds)
cancelAnimationOnCompositor(element, player, startedAnimationId);
startedAnimationIds.clear();
return false;
}
startedAnimationIds.append(id);
}
ASSERT(!startedAnimationIds.isEmpty());
return true;
}
TEST_F(PaintControllerPaintTestForSlimmingPaintV2, CompositingFold) {
setBodyInnerHTML(
"<div id='div' style='width: 200px; height: 200px; opacity: 0.5'>"
" <div style='width: 100px; height: 100px; background-color: "
"blue'></div>"
"</div>");
PaintLayer& htmlLayer =
*toLayoutBoxModelObject(document().documentElement()->layoutObject())
->layer();
LayoutBlock& div = *toLayoutBlock(getLayoutObjectByElementId("div"));
LayoutObject& subDiv = *div.firstChild();
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 8,
TestDisplayItem(layoutView(),
DisplayItem::kClipFrameToVisibleContentRect),
TestDisplayItem(*layoutView().layer(), DisplayItem::kSubsequence),
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(htmlLayer, DisplayItem::kSubsequence),
// The begin and end compositing display items have been folded into this
// one.
TestDisplayItem(subDiv, backgroundType),
TestDisplayItem(htmlLayer, DisplayItem::kEndSubsequence),
TestDisplayItem(*layoutView().layer(), DisplayItem::kEndSubsequence),
TestDisplayItem(layoutView(),
DisplayItem::clipTypeToEndClipType(
DisplayItem::kClipFrameToVisibleContentRect)));
}
// static
bool InspectorHighlight::getBoxModel(Node* node, RefPtr<TypeBuilder::DOM::BoxModel>& model)
{
LayoutObject* layoutObject = node->layoutObject();
FrameView* view = node->document().view();
if (!layoutObject || !view)
return false;
FloatQuad content, padding, border, margin;
if (!buildNodeQuads(node, &content, &padding, &border, &margin))
return false;
IntRect boundingBox = view->contentsToRootFrame(layoutObject->absoluteBoundingBoxRect());
LayoutBoxModelObject* modelObject = layoutObject->isBoxModelObject() ? toLayoutBoxModelObject(layoutObject) : nullptr;
model = TypeBuilder::DOM::BoxModel::create()
.setContent(buildArrayForQuad(content))
.setPadding(buildArrayForQuad(padding))
.setBorder(buildArrayForQuad(border))
.setMargin(buildArrayForQuad(margin))
.setWidth(modelObject ? adjustForAbsoluteZoom(modelObject->pixelSnappedOffsetWidth(), modelObject) : boundingBox.width())
.setHeight(modelObject ? adjustForAbsoluteZoom(modelObject->pixelSnappedOffsetHeight(), modelObject) : boundingBox.height());
Shape::DisplayPaths paths;
FloatQuad boundsQuad;
if (const ShapeOutsideInfo* shapeOutsideInfo = shapeOutsideInfoForNode(node, &paths, &boundsQuad)) {
RefPtr<TypeBuilder::DOM::ShapeOutsideInfo> shapeTypeBuilder = TypeBuilder::DOM::ShapeOutsideInfo::create()
.setBounds(buildArrayForQuad(boundsQuad))
.setShape(ShapePathBuilder::buildPath(*view, *layoutObject, *shapeOutsideInfo, paths.shape))
.setMarginShape(ShapePathBuilder::buildPath(*view, *layoutObject, *shapeOutsideInfo, paths.marginShape));
model->setShapeOutside(shapeTypeBuilder);
}
return true;
}
TEST_F(PaintLayerClipperTest, NestedContainPaintClip) {
setBodyInnerHTML(
"<div style='contain: paint; width: 200px; height: 200px; overflow: "
"auto'>"
" <div id='target' style='contain: paint; height: 400px'>"
" </div>"
"</div>");
LayoutRect infiniteRect(LayoutRect::infiniteIntRect());
PaintLayer* layer =
toLayoutBoxModelObject(getLayoutObjectByElementId("target"))->layer();
ClipRectsContext context(layer->parent(),
PaintingClipRectsIgnoringOverflowClip);
LayoutRect layerBounds;
ClipRect backgroundRect, foregroundRect;
layer->clipper().calculateRects(context, infiniteRect, layerBounds,
backgroundRect, foregroundRect);
EXPECT_EQ(LayoutRect(0, 0, 200, 400), backgroundRect.rect());
EXPECT_EQ(LayoutRect(0, 0, 200, 400), foregroundRect.rect());
EXPECT_EQ(LayoutRect(0, 0, 200, 400), layerBounds);
ClipRectsContext contextClip(layer->parent(), PaintingClipRects);
layer->clipper().calculateRects(contextClip, infiniteRect, layerBounds,
backgroundRect, foregroundRect);
EXPECT_EQ(LayoutRect(0, 0, 200, 200), backgroundRect.rect());
EXPECT_EQ(LayoutRect(0, 0, 200, 200), foregroundRect.rect());
EXPECT_EQ(LayoutRect(0, 0, 200, 400), layerBounds);
}
static void addPDFURLRectsForInlineChildrenRecursively(const LayoutObject& layoutObject, const PaintInfo& paintInfo, const LayoutPoint& paintOffset)
{
for (LayoutObject* child = layoutObject.slowFirstChild(); child; child = child->nextSibling()) {
if (!child->isLayoutInline() || toLayoutBoxModelObject(child)->hasSelfPaintingLayer())
continue;
ObjectPainter(*child).addPDFURLRectIfNeeded(paintInfo, paintOffset);
addPDFURLRectsForInlineChildrenRecursively(*child, paintInfo, paintOffset);
}
}
void IntersectionObservation::initializeGeometry(IntersectionGeometry& geometry)
{
ASSERT(m_target);
LayoutObject* targetLayoutObject = target()->layoutObject();
if (targetLayoutObject->isBoxModelObject())
geometry.targetRect = toLayoutBoxModelObject(targetLayoutObject)->visualOverflowRect();
else
geometry.targetRect = toLayoutText(targetLayoutObject)->visualOverflowRect();
geometry.intersectionRect = geometry.targetRect;
}
void PaintPropertyTreeBuilder::updatePaintOffsetTranslation(
const LayoutObject& object,
PaintPropertyTreeBuilderContext& context) {
bool usesPaintOffsetTranslation = false;
if (RuntimeEnabledFeatures::rootLayerScrollingEnabled() &&
object.isLayoutView()) {
// Root layer scrolling always creates a translation node for LayoutView to
// ensure fixed and absolute contexts use the correct transform space.
usesPaintOffsetTranslation = true;
} else if (object.isBoxModelObject() &&
context.current.paintOffset != LayoutPoint()) {
// TODO(trchen): Eliminate PaintLayer dependency.
PaintLayer* layer = toLayoutBoxModelObject(object).layer();
if (layer && layer->paintsWithTransform(GlobalPaintNormalPhase))
usesPaintOffsetTranslation = true;
}
// We should use the same subpixel paint offset values for snapping
// regardless of whether a transform is present. If there is a transform
// we round the paint offset but keep around the residual fractional
// component for the transformed content to paint with. In spv1 this was
// called "subpixel accumulation". For more information, see
// PaintLayer::subpixelAccumulation() and
// PaintLayerPainter::paintFragmentByApplyingTransform.
IntPoint roundedPaintOffset = roundedIntPoint(context.current.paintOffset);
LayoutPoint fractionalPaintOffset =
LayoutPoint(context.current.paintOffset - roundedPaintOffset);
if (usesPaintOffsetTranslation) {
object.getMutableForPainting()
.ensurePaintProperties()
.updatePaintOffsetTranslation(
context.current.transform,
TransformationMatrix().translate(roundedPaintOffset.x(),
roundedPaintOffset.y()),
FloatPoint3D(), context.current.shouldFlattenInheritedTransform,
context.current.renderingContextID);
} else {
if (auto* properties = object.getMutableForPainting().paintProperties())
properties->clearPaintOffsetTranslation();
}
const auto* properties = object.paintProperties();
if (properties && properties->paintOffsetTranslation()) {
context.current.transform = properties->paintOffsetTranslation();
context.current.paintOffset = fractionalPaintOffset;
if (RuntimeEnabledFeatures::rootLayerScrollingEnabled() &&
object.isLayoutView()) {
context.absolutePosition.transform = properties->paintOffsetTranslation();
context.fixedPosition.transform = properties->paintOffsetTranslation();
context.absolutePosition.paintOffset = LayoutPoint();
context.fixedPosition.paintOffset = LayoutPoint();
}
}
}
TEST_F(CompositedLayerMappingTest, RotatedInterestRect)
{
setBodyInnerHTML(
"<div id='target' style='width: 200px; height: 200px; will-change: transform; transform: rotateZ(45deg)'></div>");
document().view()->updateAllLifecyclePhases();
Element* element = document().getElementById("target");
PaintLayer* paintLayer = toLayoutBoxModelObject(element->layoutObject())->layer();
ASSERT_TRUE(!!paintLayer->graphicsLayerBacking());
EXPECT_RECT_EQ(IntRect(0, 0, 200, 200), recomputeInterestRect(paintLayer->graphicsLayerBacking()));
}
static void deriveBorderBoxFromContainerContext(const LayoutObject& object, PaintPropertyTreeBuilderContext& context)
{
if (!object.isBoxModelObject())
return;
const LayoutBoxModelObject& boxModelObject = toLayoutBoxModelObject(object);
switch (object.styleRef().position()) {
case StaticPosition:
break;
case RelativePosition:
context.paintOffset += boxModelObject.offsetForInFlowPosition();
break;
case AbsolutePosition: {
context.currentTransform = context.transformForAbsolutePosition;
context.paintOffset = context.paintOffsetForAbsolutePosition;
// Absolutely positioned content in an inline should be positioned relative to the inline.
const LayoutObject* container = context.containerForAbsolutePosition;
if (container && container->isInFlowPositioned() && container->isLayoutInline()) {
DCHECK(object.isBox());
context.paintOffset += toLayoutInline(container)->offsetForInFlowPositionedInline(toLayoutBox(object));
}
context.currentClip = context.clipForAbsolutePosition;
break;
}
case StickyPosition:
context.paintOffset += boxModelObject.offsetForInFlowPosition();
break;
case FixedPosition:
context.currentTransform = context.transformForFixedPosition;
context.paintOffset = context.paintOffsetForFixedPosition;
context.currentClip = context.clipForFixedPosition;
break;
default:
ASSERT_NOT_REACHED();
}
if (boxModelObject.isBox() && (!boxModelObject.isSVG() || boxModelObject.isSVGRoot())) {
// TODO(pdr): Several calls in this function walk back up the tree to calculate containers
// (e.g., topLeftLocation, offsetForInFlowPosition*). The containing block and other
// containers can be stored on PaintPropertyTreeBuilderContext instead of recomputing them.
context.paintOffset.moveBy(toLayoutBox(boxModelObject).topLeftLocation());
// This is a weird quirk that table cells paint as children of table rows,
// but their location have the row's location baked-in.
// Similar adjustment is done in LayoutTableCell::offsetFromContainer().
if (boxModelObject.isTableCell()) {
LayoutObject* parentRow = boxModelObject.parent();
ASSERT(parentRow && parentRow->isTableRow());
context.paintOffset.moveBy(-toLayoutBox(parentRow)->topLeftLocation());
}
}
}
TEST_F(CompositedLayerMappingTest, TallLayerInterestRect)
{
setBodyInnerHTML("<div id='target' style='width: 200px; height: 10000px; will-change: transform'></div>");
document().view()->updateAllLifecyclePhases();
Element* element = document().getElementById("target");
PaintLayer* paintLayer = toLayoutBoxModelObject(element->layoutObject())->layer();
ASSERT_TRUE(paintLayer->graphicsLayerBacking());
// Screen-space visible content rect is [8, 8, 200, 600]. Mapping back to local, adding 4000px in all directions, then
// clipping, yields this rect.
EXPECT_RECT_EQ(IntRect(0, 0, 200, 4592), recomputeInterestRect(paintLayer->graphicsLayerBacking()));
}
void PaintLayerStackingNode::rebuildZOrderLists() {
#if DCHECK_IS_ON()
DCHECK(m_layerListMutationAllowed);
#endif
DCHECK(isDirtyStackingContext());
for (PaintLayer* child = layer()->firstChild(); child;
child = child->nextSibling())
child->stackingNode()->collectLayers(m_posZOrderList, m_negZOrderList);
// Sort the two lists.
if (m_posZOrderList)
std::stable_sort(m_posZOrderList->begin(), m_posZOrderList->end(),
compareZIndex);
if (m_negZOrderList)
std::stable_sort(m_negZOrderList->begin(), m_negZOrderList->end(),
compareZIndex);
// Append layers for top layer elements after normal layer collection, to
// ensure they are on top regardless of z-indexes. The layoutObjects of top
// layer elements are children of the view, sorted in top layer stacking
// order.
if (layer()->isRootLayer()) {
LayoutBlockFlow* rootBlock = layoutObject()->view();
// If the viewport is paginated, everything (including "top-layer" elements)
// gets redirected to the flow thread. So that's where we have to look, in
// that case.
if (LayoutBlockFlow* multiColumnFlowThread =
rootBlock->multiColumnFlowThread())
rootBlock = multiColumnFlowThread;
for (LayoutObject* child = rootBlock->firstChild(); child;
child = child->nextSibling()) {
Element* childElement = (child->node() && child->node()->isElementNode())
? toElement(child->node())
: 0;
if (childElement && childElement->isInTopLayer()) {
PaintLayer* layer = toLayoutBoxModelObject(child)->layer();
// Create the buffer if it doesn't exist yet.
if (!m_posZOrderList)
m_posZOrderList = wrapUnique(new Vector<PaintLayerStackingNode*>);
m_posZOrderList->append(layer->stackingNode());
}
}
}
#if ENABLE(ASSERT)
updateStackingParentForZOrderLists(this);
#endif
m_zOrderListsDirty = false;
}
static CompositedLayerMapping* mappingFromElement(Element* element) {
if (!element)
return nullptr;
LayoutObject* layoutObject = element->layoutObject();
if (!layoutObject || !layoutObject->isBoxModelObject())
return nullptr;
PaintLayer* layer = toLayoutBoxModelObject(layoutObject)->layer();
if (!layer)
return nullptr;
if (!layer->hasCompositedLayerMapping())
return nullptr;
return layer->compositedLayerMapping();
}
TEST_F(PaintLayerTest, PaintingExtentReflectionWithTransform) {
setBodyInnerHTML(
"<div id='target' style='background-color: blue; position: absolute;"
" width: 110px; height: 120px; top: 40px; left: 60px;"
" -webkit-box-reflect: below 3px; transform: translateX(30px)'>"
"</div>");
PaintLayer* layer =
toLayoutBoxModelObject(getLayoutObjectByElementId("target"))->layer();
EXPECT_EQ(
LayoutRect(90, 40, 110, 243),
layer->paintingExtent(document().layoutView()->layer(), LayoutSize(), 0));
}
void CompositorAnimations::attachCompositedLayers(const Element& element, const AnimationPlayer& player)
{
ASSERT(element.layoutObject());
DeprecatedPaintLayer* layer = toLayoutBoxModelObject(element.layoutObject())->layer();
ASSERT(layer);
WebCompositorAnimationPlayer* compositorPlayer = player.compositorPlayer();
ASSERT(compositorPlayer);
ASSERT(layer->compositedDeprecatedPaintLayerMapping());
compositorPlayer->attachLayer(layer->compositedDeprecatedPaintLayerMapping()->mainGraphicsLayer()->platformLayer());
}
TEST_F(PaintLayerClipperTest, LocalClipRectFixedUnderTransform) {
setBodyInnerHTML(
"<div id='transformed'"
" style='will-change: transform; width: 100px; height: 100px;"
" overflow: hidden'>"
" <div id='fixed' "
" style='position: fixed; width: 100px; height: 100px;"
" top: -50px'>"
" </div>"
"</div>");
LayoutRect infiniteRect(LayoutRect::infiniteIntRect());
PaintLayer* transformed =
toLayoutBoxModelObject(getLayoutObjectByElementId("transformed"))
->layer();
PaintLayer* fixed =
toLayoutBoxModelObject(getLayoutObjectByElementId("fixed"))->layer();
EXPECT_EQ(LayoutRect(0, 0, 100, 100),
transformed->clipper().localClipRect(transformed));
EXPECT_EQ(LayoutRect(0, 50, 100, 100),
fixed->clipper().localClipRect(transformed));
}
TEST_F(CompositedLayerMappingTest, TallLayerWholeDocumentInterestRect)
{
setBodyInnerHTML("<div id='target' style='width: 200px; height: 10000px; will-change: transform'></div>");
document().settings()->setMainFrameClipsContent(false);
document().view()->updateAllLifecyclePhases();
Element* element = document().getElementById("target");
PaintLayer* paintLayer = toLayoutBoxModelObject(element->layoutObject())->layer();
ASSERT_TRUE(paintLayer->graphicsLayerBacking());
ASSERT_TRUE(paintLayer->compositedLayerMapping());
// recomputeInterestRect computes the interest rect; computeInterestRect applies the extra setting to paint everything.
EXPECT_RECT_EQ(IntRect(0, 0, 200, 4592), recomputeInterestRect(paintLayer->graphicsLayerBacking()));
EXPECT_RECT_EQ(IntRect(0, 0, 200, 10000), computeInterestRect(paintLayer->compositedLayerMapping(), paintLayer->graphicsLayerBacking(), IntRect()));
}
void FrameCaret::invalidateCaretRect(bool forceInvalidation) {
if (!m_caretRectDirty)
return;
m_caretRectDirty = false;
DCHECK(caretPositionIsValidForDocument(*m_frame->document()));
LayoutObject* layoutObject = nullptr;
LayoutRect newRect;
PositionWithAffinity currentCaretPosition = caretPosition();
if (isActive())
newRect = localCaretRectOfPosition(currentCaretPosition, layoutObject);
Node* newNode = layoutObject ? layoutObject->node() : nullptr;
// The current selected node |newNode| could be a child multiple levels below
// its associated "anchor node" ancestor, so we reference and keep around the
// anchor node for checking editability.
// TODO(wkorman): Consider storing previous Position, rather than Node, and
// making use of EditingUtilies::isEditablePosition() directly.
Node* newAnchorNode =
currentCaretPosition.position().parentAnchoredEquivalent().anchorNode();
if (newNode && newAnchorNode && newNode != newAnchorNode &&
newAnchorNode->layoutObject() && newAnchorNode->layoutObject()->isBox()) {
newNode->layoutObject()->mapToVisualRectInAncestorSpace(
toLayoutBoxModelObject(newAnchorNode->layoutObject()), newRect);
}
// It's possible for the timer to be inactive even though we want to
// invalidate the caret. For example, when running as a layout test the
// caret blink interval could be zero and thus |m_caretBlinkTimer| will
// never be started. We provide |forceInvalidation| for use by paint
// invalidation internals where we need to invalidate the caret regardless
// of timer state.
if (!forceInvalidation && !m_caretBlinkTimer.isActive() &&
newNode == m_previousCaretNode && newRect == m_previousCaretRect &&
m_caretVisibility == m_previousCaretVisibility)
return;
if (m_previousCaretAnchorNode &&
shouldRepaintCaret(*m_previousCaretAnchorNode)) {
invalidateLocalCaretRect(m_previousCaretAnchorNode.get(),
m_previousCaretRect);
}
if (newAnchorNode && shouldRepaintCaret(*newAnchorNode))
invalidateLocalCaretRect(newAnchorNode, newRect);
m_previousCaretNode = newNode;
m_previousCaretAnchorNode = newAnchorNode;
m_previousCaretRect = newRect;
m_previousCaretVisibility = m_caretVisibility;
}
TEST_F(PaintControllerPaintTestForSlimmingPaintV2, ChunkIdClientCacheFlag) {
setBodyInnerHTML(
"<div id='div' style='width: 200px; height: 200px; opacity: 0.5'>"
" <div style='width: 100px; height: 100px; background-color: "
"blue'></div>"
" <div style='width: 100px; height: 100px; background-color: "
"blue'></div>"
"</div>");
PaintLayer& htmlLayer =
*toLayoutBoxModelObject(document().documentElement()->layoutObject())
->layer();
LayoutBlock& div = *toLayoutBlock(getLayoutObjectByElementId("div"));
LayoutObject& subDiv = *div.firstChild();
LayoutObject& subDiv2 = *subDiv.nextSibling();
EXPECT_DISPLAY_LIST(
rootPaintController().getDisplayItemList(), 11,
TestDisplayItem(layoutView(),
DisplayItem::kClipFrameToVisibleContentRect),
TestDisplayItem(*layoutView().layer(), DisplayItem::kSubsequence),
TestDisplayItem(layoutView(), documentBackgroundType),
TestDisplayItem(htmlLayer, DisplayItem::kSubsequence),
TestDisplayItem(div, DisplayItem::kBeginCompositing),
TestDisplayItem(subDiv, backgroundType),
TestDisplayItem(subDiv2, backgroundType),
TestDisplayItem(div, DisplayItem::kEndCompositing),
TestDisplayItem(htmlLayer, DisplayItem::kEndSubsequence),
TestDisplayItem(*layoutView().layer(), DisplayItem::kEndSubsequence),
TestDisplayItem(layoutView(),
DisplayItem::clipTypeToEndClipType(
DisplayItem::kClipFrameToVisibleContentRect)));
const PaintChunk& backgroundChunk = rootPaintController().paintChunks()[0];
EXPECT_TRUE(backgroundChunk.properties.scroll->isRoot());
const EffectPaintPropertyNode* effectNode = div.paintProperties()->effect();
EXPECT_EQ(0.5f, effectNode->opacity());
const PaintChunk& chunk = rootPaintController().paintChunks()[1];
EXPECT_EQ(*div.layer(), chunk.id->client);
EXPECT_EQ(effectNode, chunk.properties.effect.get());
EXPECT_FALSE(div.layer()->isJustCreated());
// Client used by only paint chunks and non-cachaeable display items but not
// by any cacheable display items won't be marked as validly cached.
EXPECT_FALSE(rootPaintController().clientCacheIsValid(*div.layer()));
EXPECT_FALSE(rootPaintController().clientCacheIsValid(div));
EXPECT_TRUE(rootPaintController().clientCacheIsValid(subDiv));
}
TEST_P(CompositedLayerMappingTest, RotatedInterestRectNear90Degrees) {
setBodyInnerHTML(
"<div id='target' style='width: 10000px; height: 200px; will-change: "
"transform; transform: rotateY(89.9999deg)'></div>");
document().view()->updateAllLifecyclePhases();
Element* element = document().getElementById("target");
PaintLayer* paintLayer =
toLayoutBoxModelObject(element->layoutObject())->layer();
ASSERT_TRUE(!!paintLayer->graphicsLayerBacking());
// Because the layer is rotated to almost 90 degrees, floating-point error
// leads to a reverse-projected rect that is much much larger than the
// original layer size in certain dimensions. In such cases, we often fall
// back to the 4000px interest rect padding amount.
EXPECT_RECT_EQ(IntRect(0, 0, 4000, 200),
recomputeInterestRect(paintLayer->graphicsLayerBacking()));
}
static PassRefPtr<TransformPaintPropertyNode> createScrollTranslationIfNeeded(const LayoutObject& object, PaintPropertyTreeBuilderContext& context)
{
if (!object.isBoxModelObject() || !object.hasOverflowClip())
return nullptr;
PaintLayer* layer = toLayoutBoxModelObject(object).layer();
ASSERT(layer);
DoubleSize scrollOffset = layer->scrollableArea()->scrollOffset();
if (scrollOffset.isZero() && !layer->scrollsOverflow())
return nullptr;
RefPtr<TransformPaintPropertyNode> newTransformNodeForScrollTranslation = TransformPaintPropertyNode::create(
TransformationMatrix().translate(-scrollOffset.width(), -scrollOffset.height()),
FloatPoint3D(), context.currentTransform);
context.currentTransform = newTransformNodeForScrollTranslation.get();
return newTransformNodeForScrollTranslation.release();
}
void IntersectionObservation::clipToRoot(LayoutRect& rect)
{
// Map and clip rect into root element coordinates.
// TODO(szager): the writing mode flipping needs a test.
ASSERT(m_target);
LayoutObject* rootLayoutObject = m_observer->rootLayoutObject();
LayoutObject* targetLayoutObject = target()->layoutObject();
targetLayoutObject->mapToVisibleRectInAncestorSpace(toLayoutBoxModelObject(rootLayoutObject), rect, nullptr);
if (rootLayoutObject->hasOverflowClip()) {
LayoutBox* rootLayoutBox = toLayoutBox(rootLayoutObject);
LayoutRect clipRect(LayoutPoint(), LayoutSize(rootLayoutBox->layer()->size()));
m_observer->applyRootMargin(clipRect);
rootLayoutBox->flipForWritingMode(rect);
rect.intersect(clipRect);
rootLayoutBox->flipForWritingMode(rect);
}
}
void MouseRelatedEvent::computeRelativePosition()
{
Node* targetNode = target() ? target()->toNode() : nullptr;
if (!targetNode)
return;
// Compute coordinates that are based on the target.
m_layerLocation = m_pageLocation;
m_offsetLocation = m_pageLocation;
// Must have an updated layout tree for this math to work correctly.
targetNode->document().updateLayoutIgnorePendingStylesheets();
// Adjust offsetLocation to be relative to the target's padding box.
if (LayoutObject* r = targetNode->layoutObject()) {
FloatPoint localPos = r->absoluteToLocal(FloatPoint(absoluteLocation()), UseTransforms);
// Adding this here to address crbug.com/570666. Basically we'd like to
// find the local coordinates relative to the padding box not the border box.
if (r->isBoxModelObject()) {
LayoutBoxModelObject* layoutBox = toLayoutBoxModelObject(r);
localPos.move(-layoutBox->borderLeft(), -layoutBox->borderTop());
}
m_offsetLocation = roundedLayoutPoint(localPos);
float scaleFactor = 1 / pageZoomFactor(this);
if (scaleFactor != 1.0f)
m_offsetLocation.scale(scaleFactor, scaleFactor);
}
// Adjust layerLocation to be relative to the layer.
// FIXME: event.layerX and event.layerY are poorly defined,
// and probably don't always correspond to PaintLayer offsets.
// https://bugs.webkit.org/show_bug.cgi?id=21868
Node* n = targetNode;
while (n && !n->layoutObject())
n = n->parentNode();
if (n) {
// FIXME: This logic is a wrong implementation of convertToLayerCoords.
for (PaintLayer* layer = n->layoutObject()->enclosingLayer(); layer; layer = layer->parent())
m_layerLocation -= toLayoutSize(layer->location());
}
m_hasCachedRelativePosition = true;
}