#include "config.h"
#include "GraphicsLayer.h"
#include "FloatPoint.h"
#include "FloatRect.h"
#include "GraphicsContext.h"
#include "LayoutRect.h"
#include "RotateTransformOperation.h"
#include "TextStream.h"
#include <wtf/HashMap.h>
#include <wtf/NeverDestroyed.h>
#include <wtf/text/CString.h>
#include <wtf/text/StringBuilder.h>
#include <wtf/text/WTFString.h>
#ifndef NDEBUG
#include <stdio.h>
#endif
namespace WebCore {
typedef HashMap<const GraphicsLayer*, Vector<FloatRect>> RepaintMap;
static RepaintMap& repaintRectMap()
{
static NeverDestroyed<RepaintMap> map;
return map;
}
void KeyframeValueList::insert(std::unique_ptr<const AnimationValue> value)
{
for (size_t i = 0; i < m_values.size(); ++i) {
const AnimationValue* curValue = m_values[i].get();
if (curValue->keyTime() == value->keyTime()) {
ASSERT_NOT_REACHED();
m_values.insert(i + 1, WTFMove(value));
return;
}
if (curValue->keyTime() > value->keyTime()) {
m_values.insert(i, WTFMove(value));
return;
}
}
m_values.append(WTFMove(value));
}
#if !USE(CA)
bool GraphicsLayer::supportsLayerType(Type type)
{
switch (type) {
case Type::Normal:
case Type::PageTiledBacking:
case Type::Scrolling:
return true;
case Type::Shape:
return false;
}
ASSERT_NOT_REACHED();
return false;
}
bool GraphicsLayer::supportsBackgroundColorContent()
{
#if USE(TEXTURE_MAPPER)
return true;
#else
return false;
#endif
}
#endif
#if !USE(COORDINATED_GRAPHICS)
bool GraphicsLayer::supportsContentsTiling()
{
return false;
}
#endif
GraphicsLayer::GraphicsLayer(Type type, GraphicsLayerClient& client)
: m_client(client)
, m_anchorPoint(0.5f, 0.5f, 0)
, m_opacity(1)
, m_zPosition(0)
#if ENABLE(CSS_COMPOSITING)
, m_blendMode(BlendModeNormal)
#endif
, m_type(type)
, m_contentsOpaque(false)
, m_preserves3D(false)
, m_backfaceVisibility(true)
, m_masksToBounds(false)
, m_drawsContent(false)
, m_contentsVisible(true)
, m_acceleratesDrawing(false)
, m_usesDisplayListDrawing(false)
, m_appliesPageScale(false)
, m_showDebugBorder(false)
, m_showRepaintCounter(false)
, m_isMaskLayer(false)
, m_isTrackingDisplayListReplay(false)
, m_userInteractionEnabled(true)
, m_paintingPhase(GraphicsLayerPaintAllWithOverflowClip)
, m_contentsOrientation(CompositingCoordinatesTopDown)
, m_parent(nullptr)
, m_maskLayer(nullptr)
, m_replicaLayer(nullptr)
, m_replicatedLayer(nullptr)
, m_repaintCount(0)
, m_customAppearance(NoCustomAppearance)
{
#ifndef NDEBUG
m_client.verifyNotPainting();
#endif
}
GraphicsLayer::~GraphicsLayer()
{
resetTrackedRepaints();
ASSERT(!m_parent); }
void GraphicsLayer::willBeDestroyed()
{
#ifndef NDEBUG
m_client.verifyNotPainting();
#endif
if (m_replicaLayer)
m_replicaLayer->setReplicatedLayer(0);
if (m_replicatedLayer)
m_replicatedLayer->setReplicatedByLayer(0);
removeAllChildren();
removeFromParent();
}
void GraphicsLayer::setParent(GraphicsLayer* layer)
{
ASSERT(!layer || !layer->hasAncestor(this));
m_parent = layer;
}
bool GraphicsLayer::hasAncestor(GraphicsLayer* ancestor) const
{
for (GraphicsLayer* curr = parent(); curr; curr = curr->parent()) {
if (curr == ancestor)
return true;
}
return false;
}
bool GraphicsLayer::setChildren(const Vector<GraphicsLayer*>& newChildren)
{
if (newChildren == m_children)
return false;
removeAllChildren();
size_t listSize = newChildren.size();
for (size_t i = 0; i < listSize; ++i)
addChild(newChildren[i]);
return true;
}
void GraphicsLayer::addChild(GraphicsLayer* childLayer)
{
ASSERT(childLayer != this);
if (childLayer->parent())
childLayer->removeFromParent();
childLayer->setParent(this);
m_children.append(childLayer);
}
void GraphicsLayer::addChildAtIndex(GraphicsLayer* childLayer, int index)
{
ASSERT(childLayer != this);
if (childLayer->parent())
childLayer->removeFromParent();
childLayer->setParent(this);
m_children.insert(index, childLayer);
}
void GraphicsLayer::addChildBelow(GraphicsLayer* childLayer, GraphicsLayer* sibling)
{
ASSERT(childLayer != this);
childLayer->removeFromParent();
bool found = false;
for (unsigned i = 0; i < m_children.size(); i++) {
if (sibling == m_children[i]) {
m_children.insert(i, childLayer);
found = true;
break;
}
}
childLayer->setParent(this);
if (!found)
m_children.append(childLayer);
}
void GraphicsLayer::addChildAbove(GraphicsLayer* childLayer, GraphicsLayer* sibling)
{
childLayer->removeFromParent();
ASSERT(childLayer != this);
bool found = false;
for (unsigned i = 0; i < m_children.size(); i++) {
if (sibling == m_children[i]) {
m_children.insert(i+1, childLayer);
found = true;
break;
}
}
childLayer->setParent(this);
if (!found)
m_children.append(childLayer);
}
bool GraphicsLayer::replaceChild(GraphicsLayer* oldChild, GraphicsLayer* newChild)
{
ASSERT(!newChild->parent());
bool found = false;
for (unsigned i = 0; i < m_children.size(); i++) {
if (oldChild == m_children[i]) {
m_children[i] = newChild;
found = true;
break;
}
}
if (found) {
oldChild->setParent(0);
newChild->removeFromParent();
newChild->setParent(this);
return true;
}
return false;
}
void GraphicsLayer::removeAllChildren()
{
while (m_children.size()) {
GraphicsLayer* curLayer = m_children[0];
ASSERT(curLayer->parent());
curLayer->removeFromParent();
}
}
void GraphicsLayer::removeFromParent()
{
if (m_parent) {
m_parent->m_children.removeFirst(this);
setParent(nullptr);
}
}
void GraphicsLayer::setMaskLayer(GraphicsLayer* layer)
{
if (layer == m_maskLayer)
return;
if (layer) {
layer->removeFromParent();
layer->setParent(this);
layer->setIsMaskLayer(true);
} else if (m_maskLayer) {
m_maskLayer->setParent(nullptr);
m_maskLayer->setIsMaskLayer(false);
}
m_maskLayer = layer;
}
Path GraphicsLayer::shapeLayerPath() const
{
#if USE(CA)
return m_shapeLayerPath;
#else
return Path();
#endif
}
void GraphicsLayer::setShapeLayerPath(const Path& path)
{
#if USE(CA)
m_shapeLayerPath = path;
#else
UNUSED_PARAM(path);
#endif
}
WindRule GraphicsLayer::shapeLayerWindRule() const
{
#if USE(CA)
return m_shapeLayerWindRule;
#else
return RULE_NONZERO;
#endif
}
void GraphicsLayer::setShapeLayerWindRule(WindRule windRule)
{
#if USE(CA)
m_shapeLayerWindRule = windRule;
#else
UNUSED_PARAM(windRule);
#endif
}
void GraphicsLayer::noteDeviceOrPageScaleFactorChangedIncludingDescendants()
{
deviceOrPageScaleFactorChanged();
if (m_maskLayer)
m_maskLayer->deviceOrPageScaleFactorChanged();
if (m_replicaLayer)
m_replicaLayer->noteDeviceOrPageScaleFactorChangedIncludingDescendants();
const Vector<GraphicsLayer*>& childLayers = children();
size_t numChildren = childLayers.size();
for (size_t i = 0; i < numChildren; ++i)
childLayers[i]->noteDeviceOrPageScaleFactorChangedIncludingDescendants();
}
void GraphicsLayer::setIsInWindow(bool inWindow)
{
if (TiledBacking* tiledBacking = this->tiledBacking())
tiledBacking->setIsInWindow(inWindow);
}
void GraphicsLayer::setReplicatedByLayer(GraphicsLayer* layer)
{
if (m_replicaLayer == layer)
return;
if (m_replicaLayer)
m_replicaLayer->setReplicatedLayer(nullptr);
if (layer)
layer->setReplicatedLayer(this);
m_replicaLayer = layer;
}
void GraphicsLayer::setOffsetFromRenderer(const FloatSize& offset, ShouldSetNeedsDisplay shouldSetNeedsDisplay)
{
if (offset == m_offsetFromRenderer)
return;
m_offsetFromRenderer = offset;
if (shouldSetNeedsDisplay == SetNeedsDisplay)
setNeedsDisplay();
}
void GraphicsLayer::setSize(const FloatSize& size)
{
if (size == m_size)
return;
m_size = size;
if (shouldRepaintOnSizeChange())
setNeedsDisplay();
}
void GraphicsLayer::setBackgroundColor(const Color& color)
{
m_backgroundColor = color;
}
void GraphicsLayer::paintGraphicsLayerContents(GraphicsContext& context, const FloatRect& clip)
{
FloatSize offset = offsetFromRenderer();
context.translate(-offset);
FloatRect clipRect(clip);
clipRect.move(offset);
m_client.paintContents(this, context, m_paintingPhase, clipRect);
}
String GraphicsLayer::animationNameForTransition(AnimatedPropertyID property)
{
StringBuilder id;
id.appendLiteral("-|transition");
id.appendNumber(static_cast<int>(property));
id.append('-');
return id.toString();
}
void GraphicsLayer::suspendAnimations(double)
{
}
void GraphicsLayer::resumeAnimations()
{
}
void GraphicsLayer::getDebugBorderInfo(Color& color, float& width) const
{
width = 2;
if (needsBackdrop()) {
color = Color(255, 0, 255, 128); width = 12;
return;
}
if (drawsContent()) {
if (tiledBacking()) {
color = Color(255, 128, 0, 128); return;
}
color = Color(0, 128, 32, 128); return;
}
if (usesContentsLayer()) {
color = Color(0, 64, 128, 150); width = 8;
return;
}
if (masksToBounds()) {
color = Color(128, 255, 255, 48); width = 16;
return;
}
color = Color(255, 255, 0, 192); }
void GraphicsLayer::updateDebugIndicators()
{
if (!isShowingDebugBorder())
return;
Color borderColor;
float width = 0;
getDebugBorderInfo(borderColor, width);
setDebugBorder(borderColor, width);
}
void GraphicsLayer::setZPosition(float position)
{
m_zPosition = position;
}
float GraphicsLayer::accumulatedOpacity() const
{
if (!preserves3D())
return 1;
return m_opacity * (parent() ? parent()->accumulatedOpacity() : 1);
}
void GraphicsLayer::distributeOpacity(float accumulatedOpacity)
{
accumulatedOpacity *= m_opacity;
setOpacityInternal(accumulatedOpacity);
if (preserves3D()) {
size_t numChildren = children().size();
for (size_t i = 0; i < numChildren; ++i)
children()[i]->distributeOpacity(accumulatedOpacity);
}
}
static inline const FilterOperations& filterOperationsAt(const KeyframeValueList& valueList, size_t index)
{
return static_cast<const FilterAnimationValue&>(valueList.at(index)).value();
}
int GraphicsLayer::validateFilterOperations(const KeyframeValueList& valueList)
{
#if ENABLE(FILTERS_LEVEL_2)
ASSERT(valueList.property() == AnimatedPropertyFilter || valueList.property() == AnimatedPropertyWebkitBackdropFilter);
#else
ASSERT(valueList.property() == AnimatedPropertyFilter);
#endif
if (valueList.size() < 2)
return -1;
size_t firstIndex = 0;
for ( ; firstIndex < valueList.size(); ++firstIndex) {
if (!filterOperationsAt(valueList, firstIndex).operations().isEmpty())
break;
}
if (firstIndex >= valueList.size())
return -1;
const FilterOperations& firstVal = filterOperationsAt(valueList, firstIndex);
for (size_t i = firstIndex + 1; i < valueList.size(); ++i) {
const FilterOperations& val = filterOperationsAt(valueList, i);
if (val.operations().isEmpty())
continue;
if (!firstVal.operationsMatch(val))
return -1;
}
return firstIndex;
}
static inline const TransformOperations& operationsAt(const KeyframeValueList& valueList, size_t index)
{
return static_cast<const TransformAnimationValue&>(valueList.at(index)).value();
}
int GraphicsLayer::validateTransformOperations(const KeyframeValueList& valueList, bool& hasBigRotation)
{
ASSERT(valueList.property() == AnimatedPropertyTransform);
hasBigRotation = false;
if (valueList.size() < 2)
return -1;
size_t firstIndex = 0;
for ( ; firstIndex < valueList.size(); ++firstIndex) {
if (!operationsAt(valueList, firstIndex).operations().isEmpty())
break;
}
if (firstIndex >= valueList.size())
return -1;
const TransformOperations& firstVal = operationsAt(valueList, firstIndex);
for (size_t i = firstIndex + 1; i < valueList.size(); ++i) {
const TransformOperations& val = operationsAt(valueList, i);
if (val.operations().isEmpty())
continue;
if (!firstVal.operationsMatch(val))
return -1;
}
double lastRotationAngle = 0.0;
double maxRotationAngle = -1.0;
for (size_t j = 0; j < firstVal.operations().size(); ++j) {
TransformOperation::OperationType type = firstVal.operations().at(j)->type();
if (type == TransformOperation::ROTATE_X ||
type == TransformOperation::ROTATE_Y ||
type == TransformOperation::ROTATE_Z ||
type == TransformOperation::ROTATE_3D) {
lastRotationAngle = downcast<RotateTransformOperation>(*firstVal.operations().at(j)).angle();
if (maxRotationAngle < 0)
maxRotationAngle = fabs(lastRotationAngle);
for (size_t i = firstIndex + 1; i < valueList.size(); ++i) {
const TransformOperations& val = operationsAt(valueList, i);
double rotationAngle = val.operations().isEmpty() ? 0 : downcast<RotateTransformOperation>(*val.operations().at(j)).angle();
double diffAngle = fabs(rotationAngle - lastRotationAngle);
if (diffAngle > maxRotationAngle)
maxRotationAngle = diffAngle;
lastRotationAngle = rotationAngle;
}
}
}
hasBigRotation = maxRotationAngle >= 180.0;
return firstIndex;
}
double GraphicsLayer::backingStoreMemoryEstimate() const
{
if (!drawsContent())
return 0;
return static_cast<double>(4 * size().width()) * size().height();
}
void GraphicsLayer::resetTrackedRepaints()
{
repaintRectMap().remove(this);
}
void GraphicsLayer::addRepaintRect(const FloatRect& repaintRect)
{
if (!m_client.isTrackingRepaints())
return;
FloatRect largestRepaintRect(FloatPoint(), m_size);
largestRepaintRect.intersect(repaintRect);
RepaintMap::iterator repaintIt = repaintRectMap().find(this);
if (repaintIt == repaintRectMap().end()) {
Vector<FloatRect> repaintRects;
repaintRects.append(largestRepaintRect);
repaintRectMap().set(this, repaintRects);
} else {
Vector<FloatRect>& repaintRects = repaintIt->value;
repaintRects.append(largestRepaintRect);
}
}
void GraphicsLayer::traverse(GraphicsLayer& layer, std::function<void (GraphicsLayer&)> traversalFunc)
{
traversalFunc(layer);
for (auto* childLayer : layer.children())
traverse(*childLayer, traversalFunc);
if (auto* replicaLayer = layer.replicaLayer())
traverse(*replicaLayer, traversalFunc);
if (auto* maskLayer = layer.maskLayer())
traverse(*maskLayer, traversalFunc);
}
void GraphicsLayer::dumpLayer(TextStream& ts, int indent, LayerTreeAsTextBehavior behavior) const
{
writeIndent(ts, indent);
ts << "(" << "GraphicsLayer";
if (behavior & LayerTreeAsTextDebug) {
ts << " " << static_cast<void*>(const_cast<GraphicsLayer*>(this));
ts << " \"" << m_name << "\"";
}
ts << "\n";
dumpProperties(ts, indent, behavior);
writeIndent(ts, indent);
ts << ")\n";
}
static void dumpChildren(TextStream& ts, const Vector<GraphicsLayer*>& children, unsigned& totalChildCount, int indent, LayerTreeAsTextBehavior behavior)
{
totalChildCount += children.size();
for (auto* child : children) {
if ((behavior & LayerTreeAsTextDebug) || !child->client().shouldSkipLayerInDump(child, behavior)) {
child->dumpLayer(ts, indent + 2, behavior);
continue;
}
totalChildCount--;
dumpChildren(ts, child->children(), totalChildCount, indent, behavior);
}
}
void GraphicsLayer::dumpProperties(TextStream& ts, int indent, LayerTreeAsTextBehavior behavior) const
{
if (m_position != FloatPoint()) {
writeIndent(ts, indent + 1);
ts << "(position " << m_position.x() << " " << m_position.y() << ")\n";
}
if (m_approximatePosition) {
writeIndent(ts, indent + 1);
ts << "(approximate position " << m_approximatePosition.value().x() << " " << m_approximatePosition.value().y() << ")\n";
}
if (m_boundsOrigin != FloatPoint()) {
writeIndent(ts, indent + 1);
ts << "(bounds origin " << m_boundsOrigin.x() << " " << m_boundsOrigin.y() << ")\n";
}
if (m_anchorPoint != FloatPoint3D(0.5f, 0.5f, 0)) {
writeIndent(ts, indent + 1);
ts << "(anchor " << m_anchorPoint.x() << " " << m_anchorPoint.y();
if (m_anchorPoint.z())
ts << " " << m_anchorPoint.z();
ts << ")\n";
}
if (m_size != IntSize()) {
writeIndent(ts, indent + 1);
ts << "(bounds " << m_size.width() << " " << m_size.height() << ")\n";
}
if (m_opacity != 1) {
writeIndent(ts, indent + 1);
ts << "(opacity " << m_opacity << ")\n";
}
#if ENABLE(CSS_COMPOSITING)
if (m_blendMode != BlendModeNormal) {
writeIndent(ts, indent + 1);
ts << "(blendMode " << compositeOperatorName(CompositeSourceOver, m_blendMode) << ")\n";
}
#endif
if (type() == Type::Normal && tiledBacking()) {
writeIndent(ts, indent + 1);
ts << "(usingTiledLayer 1)\n";
}
bool needsIOSDumpRenderTreeMainFrameRenderViewLayerIsAlwaysOpaqueHack = m_client.needsIOSDumpRenderTreeMainFrameRenderViewLayerIsAlwaysOpaqueHack(*this);
if (m_contentsOpaque || needsIOSDumpRenderTreeMainFrameRenderViewLayerIsAlwaysOpaqueHack) {
writeIndent(ts, indent + 1);
ts << "(contentsOpaque " << (m_contentsOpaque || needsIOSDumpRenderTreeMainFrameRenderViewLayerIsAlwaysOpaqueHack) << ")\n";
}
if (m_preserves3D) {
writeIndent(ts, indent + 1);
ts << "(preserves3D " << m_preserves3D << ")\n";
}
if (m_drawsContent && m_client.shouldDumpPropertyForLayer(this, "drawsContent")) {
writeIndent(ts, indent + 1);
ts << "(drawsContent " << m_drawsContent << ")\n";
}
if (!m_contentsVisible) {
writeIndent(ts, indent + 1);
ts << "(contentsVisible " << m_contentsVisible << ")\n";
}
if (!m_backfaceVisibility) {
writeIndent(ts, indent + 1);
ts << "(backfaceVisibility " << (m_backfaceVisibility ? "visible" : "hidden") << ")\n";
}
if (behavior & LayerTreeAsTextDebug) {
writeIndent(ts, indent + 1);
ts << "(primary-layer-id " << primaryLayerID() << ")\n";
writeIndent(ts, indent + 1);
ts << "(client " << static_cast<void*>(&m_client) << ")\n";
}
if (m_backgroundColor.isValid() && m_client.shouldDumpPropertyForLayer(this, "backgroundColor")) {
writeIndent(ts, indent + 1);
ts << "(backgroundColor " << m_backgroundColor.nameForRenderTreeAsText() << ")\n";
}
if (behavior & LayerTreeAsTextIncludeAcceleratesDrawing && m_acceleratesDrawing) {
writeIndent(ts, indent + 1);
ts << "(acceleratesDrawing " << m_acceleratesDrawing << ")\n";
}
if (!m_transform.isIdentity()) {
writeIndent(ts, indent + 1);
ts << "(transform ";
ts << "[" << m_transform.m11() << " " << m_transform.m12() << " " << m_transform.m13() << " " << m_transform.m14() << "] ";
ts << "[" << m_transform.m21() << " " << m_transform.m22() << " " << m_transform.m23() << " " << m_transform.m24() << "] ";
ts << "[" << m_transform.m31() << " " << m_transform.m32() << " " << m_transform.m33() << " " << m_transform.m34() << "] ";
ts << "[" << m_transform.m41() << " " << m_transform.m42() << " " << m_transform.m43() << " " << m_transform.m44() << "])\n";
}
if (parent() && !m_childrenTransform.isIdentity()) {
writeIndent(ts, indent + 1);
ts << "(childrenTransform ";
ts << "[" << m_childrenTransform.m11() << " " << m_childrenTransform.m12() << " " << m_childrenTransform.m13() << " " << m_childrenTransform.m14() << "] ";
ts << "[" << m_childrenTransform.m21() << " " << m_childrenTransform.m22() << " " << m_childrenTransform.m23() << " " << m_childrenTransform.m24() << "] ";
ts << "[" << m_childrenTransform.m31() << " " << m_childrenTransform.m32() << " " << m_childrenTransform.m33() << " " << m_childrenTransform.m34() << "] ";
ts << "[" << m_childrenTransform.m41() << " " << m_childrenTransform.m42() << " " << m_childrenTransform.m43() << " " << m_childrenTransform.m44() << "])\n";
}
if (m_maskLayer) {
writeIndent(ts, indent + 1);
ts << "(mask layer";
if (behavior & LayerTreeAsTextDebug)
ts << " " << m_maskLayer;
ts << ")\n";
m_maskLayer->dumpLayer(ts, indent + 2, behavior);
}
if (m_replicaLayer) {
writeIndent(ts, indent + 1);
ts << "(replica layer";
if (behavior & LayerTreeAsTextDebug)
ts << " " << m_replicaLayer;
ts << ")\n";
m_replicaLayer->dumpLayer(ts, indent + 2, behavior);
}
if (m_replicatedLayer) {
writeIndent(ts, indent + 1);
ts << "(replicated layer";
if (behavior & LayerTreeAsTextDebug)
ts << " " << m_replicatedLayer;
ts << ")\n";
}
if (behavior & LayerTreeAsTextIncludeRepaintRects && repaintRectMap().contains(this) && !repaintRectMap().get(this).isEmpty() && m_client.shouldDumpPropertyForLayer(this, "repaintRects")) {
writeIndent(ts, indent + 1);
ts << "(repaint rects\n";
for (size_t i = 0; i < repaintRectMap().get(this).size(); ++i) {
if (repaintRectMap().get(this)[i].isEmpty())
continue;
writeIndent(ts, indent + 2);
ts << "(rect ";
ts << repaintRectMap().get(this)[i].x() << " ";
ts << repaintRectMap().get(this)[i].y() << " ";
ts << repaintRectMap().get(this)[i].width() << " ";
ts << repaintRectMap().get(this)[i].height();
ts << ")\n";
}
writeIndent(ts, indent + 1);
ts << ")\n";
}
if (behavior & LayerTreeAsTextIncludePaintingPhases && paintingPhase()) {
writeIndent(ts, indent + 1);
ts << "(paintingPhases\n";
if (paintingPhase() & GraphicsLayerPaintBackground) {
writeIndent(ts, indent + 2);
ts << "GraphicsLayerPaintBackground\n";
}
if (paintingPhase() & GraphicsLayerPaintForeground) {
writeIndent(ts, indent + 2);
ts << "GraphicsLayerPaintForeground\n";
}
if (paintingPhase() & GraphicsLayerPaintMask) {
writeIndent(ts, indent + 2);
ts << "GraphicsLayerPaintMask\n";
}
if (paintingPhase() & GraphicsLayerPaintChildClippingMask) {
writeIndent(ts, indent + 2);
ts << "GraphicsLayerPaintChildClippingMask\n";
}
if (paintingPhase() & GraphicsLayerPaintOverflowContents) {
writeIndent(ts, indent + 2);
ts << "GraphicsLayerPaintOverflowContents\n";
}
if (paintingPhase() & GraphicsLayerPaintCompositedScroll) {
writeIndent(ts, indent + 2);
ts << "GraphicsLayerPaintCompositedScroll\n";
}
writeIndent(ts, indent + 1);
ts << ")\n";
}
dumpAdditionalProperties(ts, indent, behavior);
if (m_children.size()) {
TextStream childrenStream;
unsigned totalChildCount = 0;
dumpChildren(childrenStream, m_children, totalChildCount, indent, behavior);
writeIndent(childrenStream, indent + 1);
childrenStream << ")\n";
if (totalChildCount) {
writeIndent(ts, indent + 1);
ts << "(children " << totalChildCount << "\n";
ts << childrenStream.release();
}
}
}
TextStream& operator<<(TextStream& ts, const Vector<GraphicsLayer::PlatformLayerID>& layers)
{
for (size_t i = 0; i < layers.size(); ++i) {
if (i)
ts << " ";
ts << layers[i];
}
return ts;
}
TextStream& operator<<(TextStream& ts, const WebCore::GraphicsLayer::CustomAppearance& customAppearance)
{
switch (customAppearance) {
case GraphicsLayer::CustomAppearance::NoCustomAppearance: ts << "none"; break;
case GraphicsLayer::CustomAppearance::ScrollingOverhang: ts << "scrolling-overhang"; break;
case GraphicsLayer::CustomAppearance::ScrollingShadow: ts << "scrolling-shadow"; break;
case GraphicsLayer::CustomAppearance::LightBackdropAppearance: ts << "light-backdrop"; break;
case GraphicsLayer::CustomAppearance::DarkBackdropAppearance: ts << "dark-backdrop"; break;
}
return ts;
}
String GraphicsLayer::layerTreeAsText(LayerTreeAsTextBehavior behavior) const
{
TextStream ts(TextStream::LineMode::MultipleLine, TextStream::Formatting::SVGStyleRect);
dumpLayer(ts, 0, behavior);
return ts.release();
}
}
#if ENABLE(TREE_DEBUGGING)
void showGraphicsLayerTree(const WebCore::GraphicsLayer* layer)
{
if (!layer)
return;
String output = layer->layerTreeAsText(WebCore::LayerTreeAsTextDebug | WebCore::LayerTreeAsTextIncludeVisibleRects | WebCore::LayerTreeAsTextIncludeTileCaches | WebCore::LayerTreeAsTextIncludeContentLayers);
fprintf(stderr, "%s\n", output.utf8().data());
}
#endif