void BackgroundImageGeometry::setRepeatY(const FillLayer& fillLayer,
LayoutUnit unsnappedTileHeight,
LayoutUnit snappedAvailableHeight,
LayoutUnit unsnappedAvailableHeight,
LayoutUnit extraOffset) {
// We would like to identify the phase as a fraction of the image size in the
// absence of snapping, then re-apply it to the snapped values. This is to
// handle large positions.
if (unsnappedTileHeight) {
LayoutUnit computedYPosition = roundedMinimumValueForLength(
fillLayer.yPosition(), unsnappedAvailableHeight);
if (fillLayer.backgroundYOrigin() == BottomEdge) {
float numberOfTilesInPosition =
(snappedAvailableHeight - computedYPosition + extraOffset).toFloat() /
unsnappedTileHeight.toFloat();
float fractionalPositionWithinTile =
numberOfTilesInPosition - truncf(numberOfTilesInPosition);
setPhaseY(LayoutUnit(
roundf(fractionalPositionWithinTile * tileSize().height())));
} else {
float numberOfTilesInPosition =
(computedYPosition + extraOffset).toFloat() /
unsnappedTileHeight.toFloat();
float fractionalPositionWithinTile =
1.0f - (numberOfTilesInPosition - truncf(numberOfTilesInPosition));
setPhaseY(LayoutUnit(
roundf(fractionalPositionWithinTile * tileSize().height())));
}
} else {
setPhaseY(LayoutUnit());
}
setSpaceSize(LayoutSize(spaceSize().width(), LayoutUnit()));
}
void CSSToStyleMap::mapFillSize(CSSPropertyID, FillLayer& layer, const CSSValue& value)
{
if (value.isInitialValue()) {
layer.setSize(FillLayer::initialFillSize(layer.type()));
return;
}
if (!is<CSSPrimitiveValue>(value))
return;
auto& primitiveValue = downcast<CSSPrimitiveValue>(value);
FillSize fillSize;
switch (primitiveValue.getValueID()) {
case CSSValueContain:
fillSize.type = Contain;
break;
case CSSValueCover:
fillSize.type = Cover;
break;
default:
ASSERT(fillSize.type == SizeLength);
if (!convertToLengthSize(primitiveValue, m_resolver->state().cssToLengthConversionData(), fillSize.size))
return;
break;
}
layer.setSize(fillSize);
}
FixedBackgroundImageLayerAndroid::FixedBackgroundImageLayerAndroid(PassRefPtr<RenderStyle> aStyle,
int w, int h)
: LayerAndroid((RenderLayer*)0)
, m_width(w)
, m_height(h)
{
RefPtr<RenderStyle> style = aStyle;
FillLayer* layers = style->accessBackgroundLayers();
StyleImage* styleImage = layers->image();
CachedImage* cachedImage = static_cast<StyleCachedImage*>(styleImage)->cachedImage();
WebCore::Image* image = cachedImage->image();
setContentsImage(image->nativeImageForCurrentFrame());
setSize(image->width(), image->height());
setIntrinsicallyComposited(true);
SkLength left, top;
left = SkLength::convertLength(style->backgroundXPosition());
top = SkLength::convertLength(style->backgroundYPosition());
BackgroundImagePositioning* position = new BackgroundImagePositioning(this);
position->setRepeatX(style->backgroundRepeatX() != WebCore::NoRepeatFill);
position->setRepeatY(style->backgroundRepeatY() != WebCore::NoRepeatFill);
setFixedPosition(position);
position->setPosition(left, top);
#ifdef DEBUG_COUNT
ClassTracker::instance()->increment("FixedBackgroundImageLayerAndroid");
#endif
}
virtual void applyInitialValue(CSSStyleSelector* selector) const
{
FillLayer* currChild = (selector->style()->*m_accessLayers)();
(currChild->*m_set)((*m_initial)(m_fillLayerType));
for (currChild = currChild->next(); currChild; currChild = currChild->next())
(currChild->*m_clear)();
}
void CSSToStyleMap::mapFillYPosition(CSSPropertyID propertyID, FillLayer& layer, const CSSValue& value)
{
if (value.isInitialValue()) {
layer.setYPosition(FillLayer::initialFillYPosition(layer.type()));
return;
}
if (!is<CSSPrimitiveValue>(value))
return;
auto* primitiveValue = &downcast<CSSPrimitiveValue>(value);
Pair* pair = primitiveValue->getPairValue();
if (pair) {
ASSERT_UNUSED(propertyID, propertyID == CSSPropertyBackgroundPositionY || propertyID == CSSPropertyWebkitMaskPositionY);
primitiveValue = pair->second();
}
Length length;
if (primitiveValue->isLength())
length = primitiveValue->computeLength<Length>(m_resolver->state().cssToLengthConversionData());
else if (primitiveValue->isPercentage())
length = Length(primitiveValue->getDoubleValue(), Percent);
else if (primitiveValue->isCalculatedPercentageWithLength())
length = Length(primitiveValue->cssCalcValue()->createCalculationValue(m_resolver->state().cssToLengthConversionData()));
else
return;
layer.setYPosition(length);
if (pair)
layer.setBackgroundYOrigin(*pair->first());
}
void CSSToStyleMap::mapFillMaskSourceType(CSSPropertyID, FillLayer& layer, const CSSValue& value)
{
EMaskSourceType type = FillLayer::initialFillMaskSourceType(layer.type());
if (value.isInitialValue()) {
layer.setMaskSourceType(type);
return;
}
if (!is<CSSPrimitiveValue>(value))
return;
switch (downcast<CSSPrimitiveValue>(value).getValueID()) {
case CSSValueAlpha:
type = EMaskSourceType::MaskAlpha;
break;
case CSSValueLuminance:
type = EMaskSourceType::MaskLuminance;
break;
case CSSValueAuto:
break;
default:
ASSERT_NOT_REACHED();
}
layer.setMaskSourceType(type);
}
void InlineFlowBoxPainter::paintFillLayers(const PaintInfo& paintInfo, const Color& c, const FillLayer& fillLayer, const LayoutRect& rect, SkXfermode::Mode op)
{
// FIXME: This should be a for loop or similar. It's a little non-trivial to do so, however, since the layers need to be
// painted in reverse order.
if (fillLayer.next())
paintFillLayers(paintInfo, c, *fillLayer.next(), rect, op);
paintFillLayer(paintInfo, c, fillLayer, rect, op);
}
void StyleResourceLoader::loadPendingImages(RenderStyle* style, ElementStyleResources& elementStyleResources)
{
if (elementStyleResources.pendingImageProperties().isEmpty())
return;
PendingImagePropertyMap::const_iterator::Keys end = elementStyleResources.pendingImageProperties().end().keys();
for (PendingImagePropertyMap::const_iterator::Keys it = elementStyleResources.pendingImageProperties().begin().keys(); it != end; ++it) {
CSSPropertyID currentProperty = *it;
switch (currentProperty) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = &style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage())
backgroundLayer->setImage(loadPendingImage(toStylePendingImage(backgroundLayer->image()), elementStyleResources.deviceScaleFactor()));
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style->cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
if (StyleImage* image = currentCursor.image()) {
if (image->isPendingImage())
currentCursor.setImage(loadPendingImage(toStylePendingImage(image), elementStyleResources.deviceScaleFactor()));
}
}
}
break;
}
case CSSPropertyListStyleImage: {
if (style->listStyleImage() && style->listStyleImage()->isPendingImage())
style->setListStyleImage(loadPendingImage(toStylePendingImage(style->listStyleImage()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyBorderImageSource: {
if (style->borderImageSource() && style->borderImageSource()->isPendingImage())
style->setBorderImageSource(loadPendingImage(toStylePendingImage(style->borderImageSource()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
if (style->maskBoxImageSource() && style->maskBoxImageSource()->isPendingImage())
style->setMaskBoxImageSource(loadPendingImage(toStylePendingImage(style->maskBoxImageSource()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = &style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
if (maskLayer->image() && maskLayer->image()->isPendingImage())
maskLayer->setImage(loadPendingImage(toStylePendingImage(maskLayer->image()), elementStyleResources.deviceScaleFactor()));
}
break;
}
default:
ASSERT_NOT_REACHED();
}
}
elementStyleResources.clearPendingImageProperties();
}
void CSSToStyleMap::mapFillImage(CSSPropertyID property, FillLayer& layer, CSSValue& value)
{
if (value.isInitialValue()) {
layer.setImage(FillLayer::initialFillImage(layer.type()));
return;
}
layer.setImage(styleImage(property, value));
}
void CSSToStyleMap::mapFillRepeatY(CSSPropertyID propertyID, FillLayer& layer, const CSSValue& value)
{
if (value.treatAsInitialValue(propertyID)) {
layer.setRepeatY(FillLayer::initialFillRepeatY(layer.type()));
return;
}
if (!is<CSSPrimitiveValue>(value))
return;
layer.setRepeatY(downcast<CSSPrimitiveValue>(value));
}
void CSSToStyleMap::mapFillClip(CSSPropertyID, FillLayer& layer, const CSSValue& value)
{
if (value.isInitialValue()) {
layer.setClip(FillLayer::initialFillClip(layer.type()));
return;
}
if (!is<CSSPrimitiveValue>(value))
return;
layer.setClip(downcast<CSSPrimitiveValue>(value));
}
void FillLayer::cullEmptyLayers()
{
FillLayer* next;
for (FillLayer* p = this; p; p = next) {
next = p->m_next;
if (next && !next->isImageSet()) {
delete next;
p->m_next = 0;
break;
}
}
}
void FillAnnotationImpl::updateStyle(Style& style) const {
Layer* layer = style.getLayer(layerID);
if (!layer) {
auto newLayer = std::make_unique<FillLayer>(layerID, AnnotationManager::SourceID);
newLayer->setSourceLayer(layerID);
layer = style.addLayer(std::move(newLayer), AnnotationManager::PointLayerID);
}
FillLayer* fillLayer = layer->as<FillLayer>();
fillLayer->setFillOpacity(annotation.opacity);
fillLayer->setFillColor(annotation.color);
fillLayer->setFillOutlineColor(annotation.outlineColor);
}
virtual void applyValue(CSSStyleSelector* selector, CSSValue* value) const
{
FillLayer* currChild = (selector->style()->*m_accessLayers)();
FillLayer* prevChild = 0;
if (value->isValueList()) {
/* Walk each value and put it into a layer, creating new layers as needed. */
CSSValueList* valueList = static_cast<CSSValueList*>(value);
for (unsigned int i = 0; i < valueList->length(); i++) {
if (!currChild) {
/* Need to make a new layer to hold this value */
currChild = new FillLayer(m_fillLayerType);
prevChild->setNext(currChild);
}
(selector->*m_mapFill)(m_propertyId, currChild, valueList->itemWithoutBoundsCheck(i));
prevChild = currChild;
currChild = currChild->next();
}
} else {
(selector->*m_mapFill)(m_propertyId, currChild, value);
currChild = currChild->next();
}
while (currChild) {
/* Reset all remaining layers to not have the property set. */
(currChild->*m_clear)();
currChild = currChild->next();
}
}
virtual void applyInheritValue(CSSStyleSelector* selector) const
{
FillLayer* currChild = (selector->style()->*m_accessLayers)();
FillLayer* prevChild = 0;
const FillLayer* currParent = (selector->parentStyle()->*m_layers)();
while (currParent && (currParent->*m_test)()) {
if (!currChild) {
/* Need to make a new layer.*/
currChild = new FillLayer(m_fillLayerType);
prevChild->setNext(currChild);
}
(currChild->*m_set)((currParent->*m_get)());
prevChild = currChild;
currChild = prevChild->next();
currParent = currParent->next();
}
while (currChild) {
/* Reset any remaining layers to not have the property set. */
(currChild->*m_clear)();
currChild = currChild->next();
}
}
Image* FixedBackgroundImageLayerAndroid::GetCachedImage(PassRefPtr<RenderStyle> aStyle)
{
RefPtr<RenderStyle> style = aStyle;
if (!style)
return 0;
if (!style->hasFixedBackgroundImage())
return 0;
FillLayer* layers = style->accessBackgroundLayers();
StyleImage* styleImage = layers->image();
if (!styleImage)
return 0;
if (!styleImage->isLoaded())
return 0;
if (!styleImage->isCachedImage())
return 0;
CachedImage* cachedImage = static_cast<StyleCachedImage*>(styleImage)->cachedImage();
Image* image = cachedImage->image();
bool willPaintBrokenImage = cachedImage->willPaintBrokenImage(); //SAMSUNG_CHANGES -- MPSG6322 & MPSG6356
if (image && !image->nativeImageForCurrentFrame())
return 0;
//SAMSUNG_CHANGES -- MPSG6322 & MPSG6356
//WAS: if (image == Image::nullImage())
if (image == Image::nullImage() || willPaintBrokenImage)
return 0;
return image;
}
void CSSToStyleMap::mapFillAttachment(CSSPropertyID, FillLayer& layer, const CSSValue& value)
{
if (value.isInitialValue()) {
layer.setAttachment(FillLayer::initialFillAttachment(layer.type()));
return;
}
if (!is<CSSPrimitiveValue>(value))
return;
switch (downcast<CSSPrimitiveValue>(value).getValueID()) {
case CSSValueFixed:
layer.setAttachment(FixedBackgroundAttachment);
break;
case CSSValueScroll:
layer.setAttachment(ScrollBackgroundAttachment);
break;
case CSSValueLocal:
layer.setAttachment(LocalBackgroundAttachment);
break;
default:
return;
}
}
void SizeListPropertyFunctions::setSizeList(CSSPropertyID property,
ComputedStyle& style,
const SizeList& sizeList) {
FillLayer* fillLayer = accessFillLayer(property, style);
FillLayer* prev = nullptr;
for (const FillSize& size : sizeList) {
if (!fillLayer)
fillLayer = prev->ensureNext();
fillLayer->setSize(size);
prev = fillLayer;
fillLayer = fillLayer->next();
}
while (fillLayer) {
fillLayer->clearSize();
fillLayer = fillLayer->next();
}
}
static bool isBackgroundOrBorderStyled(const RenderStyle& style, const CachedUAStyle& uaStyle)
{
// Code below excludes the background-repeat from comparison by resetting it
FillLayer backgroundCopy = uaStyle.backgroundLayers;
FillLayer backgroundLayersCopy = *style.backgroundLayers();
backgroundCopy.setRepeatX(NoRepeatFill);
backgroundCopy.setRepeatY(NoRepeatFill);
backgroundLayersCopy.setRepeatX(NoRepeatFill);
backgroundLayersCopy.setRepeatY(NoRepeatFill);
// Test the style to see if the UA border and background match.
return style.border() != uaStyle.border
|| backgroundLayersCopy != backgroundCopy
|| style.visitedDependentColor(CSSPropertyBackgroundColor) != uaStyle.backgroundColor;
}
void InlineFlowBoxPainter::paintFillLayer(const PaintInfo& paintInfo, const Color& c, const FillLayer& fillLayer, const LayoutRect& rect, SkXfermode::Mode op)
{
StyleImage* img = fillLayer.image();
bool hasFillImage = img && img->canRender(m_inlineFlowBox.layoutObject(), m_inlineFlowBox.layoutObject().style()->effectiveZoom());
if ((!hasFillImage && !m_inlineFlowBox.layoutObject().style()->hasBorderRadius()) || (!m_inlineFlowBox.prevLineBox() && !m_inlineFlowBox.nextLineBox()) || !m_inlineFlowBox.parent()) {
BoxPainter::paintFillLayerExtended(*m_inlineFlowBox.boxModelObject(), paintInfo, c, fillLayer, rect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
} else if (m_inlineFlowBox.layoutObject().style()->boxDecorationBreak() == DCLONE) {
GraphicsContextStateSaver stateSaver(*paintInfo.context);
paintInfo.context->clip(LayoutRect(rect.x(), rect.y(), m_inlineFlowBox.width(), m_inlineFlowBox.height()));
BoxPainter::paintFillLayerExtended(*m_inlineFlowBox.boxModelObject(), paintInfo, c, fillLayer, rect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
} else {
// We have a fill image that spans multiple lines.
// FIXME: frameSize ought to be the same as rect.size().
LayoutSize frameSize(m_inlineFlowBox.width().toLayoutUnit(), m_inlineFlowBox.height().toLayoutUnit());
LayoutRect imageStripPaintRect = paintRectForImageStrip(rect.location(), frameSize, m_inlineFlowBox.layoutObject().style()->direction());
GraphicsContextStateSaver stateSaver(*paintInfo.context);
paintInfo.context->clip(LayoutRect(rect.x(), rect.y(), m_inlineFlowBox.width(), m_inlineFlowBox.height()));
BoxPainter::paintFillLayerExtended(*m_inlineFlowBox.boxModelObject(), paintInfo, c, fillLayer, imageStripPaintRect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
}
}
void InlineFlowBoxPainter::paintFillLayer(const PaintInfo& paintInfo, const Color& c, const FillLayer& fillLayer, const LayoutRect& rect, SkXfermode::Mode op)
{
LayoutBoxModelObject* boxModel = toLayoutBoxModelObject(LineLayoutAPIShim::layoutObjectFrom(m_inlineFlowBox.boxModelObject()));
StyleImage* img = fillLayer.image();
bool hasFillImage = img && img->canRender();
if ((!hasFillImage && !m_inlineFlowBox.lineLayoutItem().style()->hasBorderRadius()) || (!m_inlineFlowBox.prevLineBox() && !m_inlineFlowBox.nextLineBox()) || !m_inlineFlowBox.parent()) {
BoxPainter::paintFillLayer(*boxModel, paintInfo, c, fillLayer, rect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
} else if (m_inlineFlowBox.lineLayoutItem().style()->boxDecorationBreak() == DCLONE) {
GraphicsContextStateSaver stateSaver(paintInfo.context);
paintInfo.context.clip(pixelSnappedIntRect(rect));
BoxPainter::paintFillLayer(*boxModel, paintInfo, c, fillLayer, rect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
} else {
// We have a fill image that spans multiple lines.
// FIXME: frameSize ought to be the same as rect.size().
LayoutSize frameSize(m_inlineFlowBox.width(), m_inlineFlowBox.height());
LayoutRect imageStripPaintRect = paintRectForImageStrip(rect.location(), frameSize, m_inlineFlowBox.lineLayoutItem().style()->direction());
GraphicsContextStateSaver stateSaver(paintInfo.context);
// TODO(chrishtr): this should likely be pixel-snapped.
paintInfo.context.clip(pixelSnappedIntRect(rect));
BoxPainter::paintFillLayer(*boxModel, paintInfo, c, fillLayer, imageStripPaintRect, BackgroundBleedNone, &m_inlineFlowBox, rect.size(), op);
}
}
static inline bool layerImagesIdentical(const FillLayer& layer1, const FillLayer& layer2)
{
// We just care about pointer equivalency.
return layer1.image() == layer2.image();
}
void StyleResourceLoader::loadPendingImages(RenderStyle* style, const ElementStyleResources& elementStyleResources)
{
if (elementStyleResources.pendingImageProperties().isEmpty())
return;
PendingImagePropertyMap::const_iterator::Keys end = elementStyleResources.pendingImageProperties().end().keys();
for (PendingImagePropertyMap::const_iterator::Keys it = elementStyleResources.pendingImageProperties().begin().keys(); it != end; ++it) {
CSSPropertyID currentProperty = *it;
switch (currentProperty) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage())
backgroundLayer->setImage(loadPendingImage(static_cast<StylePendingImage*>(backgroundLayer->image()), elementStyleResources.deviceScaleFactor()));
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(style->contentData()); contentData; contentData = contentData->next()) {
if (contentData->isImage()) {
StyleImage* image = static_cast<ImageContentData*>(contentData)->image();
if (image->isPendingImage()) {
RefPtr<StyleImage> loadedImage = loadPendingImage(static_cast<StylePendingImage*>(image), elementStyleResources.deviceScaleFactor());
if (loadedImage)
static_cast<ImageContentData*>(contentData)->setImage(loadedImage.release());
}
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style->cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
if (StyleImage* image = currentCursor.image()) {
if (image->isPendingImage())
currentCursor.setImage(loadPendingImage(static_cast<StylePendingImage*>(image), elementStyleResources.deviceScaleFactor()));
}
}
}
break;
}
case CSSPropertyListStyleImage: {
if (style->listStyleImage() && style->listStyleImage()->isPendingImage())
style->setListStyleImage(loadPendingImage(static_cast<StylePendingImage*>(style->listStyleImage()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyBorderImageSource: {
if (style->borderImageSource() && style->borderImageSource()->isPendingImage())
style->setBorderImageSource(loadPendingImage(static_cast<StylePendingImage*>(style->borderImageSource()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = style->boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
if (maskImage.image() && maskImage.image()->isPendingImage()) {
RefPtr<StyleImage> loadedImage = loadPendingImage(static_cast<StylePendingImage*>(maskImage.image()), elementStyleResources.deviceScaleFactor());
reflection->setMask(NinePieceImage(loadedImage.release(), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
if (style->maskBoxImageSource() && style->maskBoxImageSource()->isPendingImage())
style->setMaskBoxImageSource(loadPendingImage(static_cast<StylePendingImage*>(style->maskBoxImageSource()), elementStyleResources.deviceScaleFactor()));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
if (maskLayer->image() && maskLayer->image()->isPendingImage())
maskLayer->setImage(loadPendingImage(static_cast<StylePendingImage*>(maskLayer->image()), elementStyleResources.deviceScaleFactor()));
}
break;
}
case CSSPropertyWebkitShapeInside:
loadPendingShapeImage(style, style->shapeInside());
break;
case CSSPropertyWebkitShapeOutside:
loadPendingShapeImage(style, style->shapeOutside());
break;
default:
ASSERT_NOT_REACHED();
}
}
}
void FillLayer::fillUnsetProperties()
{
FillLayer* curr;
for (curr = this; curr && curr->isXPositionSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_xPosition = pattern->m_xPosition;
if (pattern->isBackgroundOriginSet()) {
curr->m_backgroundXOrigin = pattern->m_backgroundXOrigin;
curr->m_backgroundYOrigin = pattern->m_backgroundYOrigin;
}
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isYPositionSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_yPosition = pattern->m_yPosition;
if (pattern->isBackgroundOriginSet()) {
curr->m_backgroundXOrigin = pattern->m_backgroundXOrigin;
curr->m_backgroundYOrigin = pattern->m_backgroundYOrigin;
}
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isAttachmentSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_attachment = pattern->m_attachment;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isClipSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_clip = pattern->m_clip;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isCompositeSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_composite = pattern->m_composite;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isBlendModeSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_blendMode = pattern->m_blendMode;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isOriginSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_origin = pattern->m_origin;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isRepeatXSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_repeatX = pattern->m_repeatX;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isRepeatYSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_repeatY = pattern->m_repeatY;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
for (curr = this; curr && curr->isSizeSet(); curr = curr->next()) { }
if (curr && curr != this) {
// We need to fill in the remaining values with the pattern specified.
for (FillLayer* pattern = this; curr; curr = curr->next()) {
curr->m_sizeType = pattern->m_sizeType;
curr->m_sizeLength = pattern->m_sizeLength;
pattern = pattern->next();
if (pattern == curr || !pattern)
pattern = this;
}
}
}
void BackgroundImageGeometry::calculate(
const LayoutBoxModelObject& obj,
const LayoutBoxModelObject* paintContainer,
const GlobalPaintFlags globalPaintFlags,
const FillLayer& fillLayer,
const LayoutRect& paintRect) {
LayoutUnit left;
LayoutUnit top;
LayoutSize positioningAreaSize;
bool isLayoutView = obj.isLayoutView();
const LayoutBox* rootBox = nullptr;
if (isLayoutView) {
// It is only possible reach here when root element has a box.
Element* documentElement = obj.document().documentElement();
DCHECK(documentElement);
DCHECK(documentElement->layoutObject());
DCHECK(documentElement->layoutObject()->isBox());
rootBox = toLayoutBox(documentElement->layoutObject());
}
const LayoutBoxModelObject& positioningBox =
isLayoutView ? static_cast<const LayoutBoxModelObject&>(*rootBox) : obj;
// Determine the background positioning area and set destRect to the
// background painting area. destRect will be adjusted later if the
// background is non-repeating.
// FIXME: transforms spec says that fixed backgrounds behave like scroll
// inside transforms.
bool fixedAttachment = fillLayer.attachment() == FixedBackgroundAttachment;
if (RuntimeEnabledFeatures::fastMobileScrollingEnabled()) {
// As a side effect of an optimization to blit on scroll, we do not honor
// the CSS property "background-attachment: fixed" because it may result in
// rendering artifacts. Note, these artifacts only appear if we are blitting
// on scroll of a page that has fixed background images.
fixedAttachment = false;
}
if (!fixedAttachment) {
setDestRect(paintRect);
LayoutUnit right;
LayoutUnit bottom;
// Scroll and Local.
if (fillLayer.origin() != BorderFillBox) {
left = LayoutUnit(positioningBox.borderLeft());
right = LayoutUnit(positioningBox.borderRight());
top = LayoutUnit(positioningBox.borderTop());
bottom = LayoutUnit(positioningBox.borderBottom());
if (fillLayer.origin() == ContentFillBox) {
left += positioningBox.paddingLeft();
right += positioningBox.paddingRight();
top += positioningBox.paddingTop();
bottom += positioningBox.paddingBottom();
}
}
if (isLayoutView) {
// The background of the box generated by the root element covers the
// entire canvas and will be painted by the view object, but the we should
// still use the root element box for positioning.
positioningAreaSize =
rootBox->size() - LayoutSize(left + right, top + bottom),
rootBox->location();
// The input paint rect is specified in root element local coordinate
// (i.e. a transform is applied on the context for painting), and is
// expanded to cover the whole canvas. Since left/top is relative to the
// paint rect, we need to offset them back.
left -= paintRect.x();
top -= paintRect.y();
} else {
positioningAreaSize =
paintRect.size() - LayoutSize(left + right, top + bottom);
}
} else {
setHasNonLocalGeometry();
LayoutRect viewportRect = obj.viewRect();
if (fixedBackgroundPaintsInLocalCoordinates(obj, globalPaintFlags)) {
viewportRect.setLocation(LayoutPoint());
} else {
if (FrameView* frameView = obj.view()->frameView())
viewportRect.setLocation(IntPoint(frameView->scrollOffsetInt()));
// Compensate the translations created by ScrollRecorders.
// TODO(trchen): Fix this for SP phase 2. crbug.com/529963.
viewportRect.moveBy(
accumulatedScrollOffsetForFixedBackground(obj, paintContainer));
}
if (paintContainer)
viewportRect.moveBy(
LayoutPoint(-paintContainer->localToAbsolute(FloatPoint())));
setDestRect(viewportRect);
positioningAreaSize = destRect().size();
}
LayoutSize fillTileSize(
calculateFillTileSize(positioningBox, fillLayer, positioningAreaSize));
// It's necessary to apply the heuristic here prior to any further
// calculations to avoid incorrectly using sub-pixel values that won't be
// present in the painted tile.
setTileSize(applySubPixelHeuristicToImageSize(fillTileSize, m_destRect));
EFillRepeat backgroundRepeatX = fillLayer.repeatX();
EFillRepeat backgroundRepeatY = fillLayer.repeatY();
LayoutUnit unsnappedAvailableWidth =
positioningAreaSize.width() - fillTileSize.width();
LayoutUnit unsnappedAvailableHeight =
positioningAreaSize.height() - fillTileSize.height();
positioningAreaSize =
LayoutSize(snapSizeToPixel(positioningAreaSize.width(), m_destRect.x()),
snapSizeToPixel(positioningAreaSize.height(), m_destRect.y()));
LayoutUnit availableWidth = positioningAreaSize.width() - tileSize().width();
LayoutUnit availableHeight =
positioningAreaSize.height() - tileSize().height();
LayoutUnit computedXPosition =
roundedMinimumValueForLength(fillLayer.xPosition(), availableWidth);
if (backgroundRepeatX == RoundFill &&
positioningAreaSize.width() > LayoutUnit() &&
fillTileSize.width() > LayoutUnit()) {
int nrTiles = std::max(
1, roundToInt(positioningAreaSize.width() / fillTileSize.width()));
LayoutUnit roundedWidth = positioningAreaSize.width() / nrTiles;
// Maintain aspect ratio if background-size: auto is set
if (fillLayer.size().size.height().isAuto() &&
backgroundRepeatY != RoundFill) {
fillTileSize.setHeight(fillTileSize.height() * roundedWidth /
fillTileSize.width());
}
fillTileSize.setWidth(roundedWidth);
setTileSize(applySubPixelHeuristicToImageSize(fillTileSize, m_destRect));
setPhaseX(tileSize().width()
? LayoutUnit(roundf(
tileSize().width() -
fmodf((computedXPosition + left), tileSize().width())))
: LayoutUnit());
setSpaceSize(LayoutSize());
}
LayoutUnit computedYPosition =
roundedMinimumValueForLength(fillLayer.yPosition(), availableHeight);
if (backgroundRepeatY == RoundFill &&
positioningAreaSize.height() > LayoutUnit() &&
fillTileSize.height() > LayoutUnit()) {
int nrTiles = std::max(
1, roundToInt(positioningAreaSize.height() / fillTileSize.height()));
LayoutUnit roundedHeight = positioningAreaSize.height() / nrTiles;
// Maintain aspect ratio if background-size: auto is set
if (fillLayer.size().size.width().isAuto() &&
backgroundRepeatX != RoundFill) {
fillTileSize.setWidth(fillTileSize.width() * roundedHeight /
fillTileSize.height());
}
fillTileSize.setHeight(roundedHeight);
setTileSize(applySubPixelHeuristicToImageSize(fillTileSize, m_destRect));
setPhaseY(tileSize().height()
? LayoutUnit(roundf(
tileSize().height() -
fmodf((computedYPosition + top), tileSize().height())))
: LayoutUnit());
setSpaceSize(LayoutSize());
}
if (backgroundRepeatX == RepeatFill) {
setRepeatX(fillLayer, fillTileSize.width(), availableWidth,
unsnappedAvailableWidth, left);
} else if (backgroundRepeatX == SpaceFill &&
tileSize().width() > LayoutUnit()) {
LayoutUnit space = getSpaceBetweenImageTiles(positioningAreaSize.width(),
tileSize().width());
if (space >= LayoutUnit())
setSpaceX(space, availableWidth, left);
else
backgroundRepeatX = NoRepeatFill;
}
if (backgroundRepeatX == NoRepeatFill) {
LayoutUnit xOffset = fillLayer.backgroundXOrigin() == RightEdge
? availableWidth - computedXPosition
: computedXPosition;
setNoRepeatX(left + xOffset);
}
if (backgroundRepeatY == RepeatFill) {
setRepeatY(fillLayer, fillTileSize.height(), availableHeight,
unsnappedAvailableHeight, top);
} else if (backgroundRepeatY == SpaceFill &&
tileSize().height() > LayoutUnit()) {
LayoutUnit space = getSpaceBetweenImageTiles(positioningAreaSize.height(),
tileSize().height());
if (space >= LayoutUnit())
setSpaceY(space, availableHeight, top);
else
backgroundRepeatY = NoRepeatFill;
}
if (backgroundRepeatY == NoRepeatFill) {
LayoutUnit yOffset = fillLayer.backgroundYOrigin() == BottomEdge
? availableHeight - computedYPosition
: computedYPosition;
setNoRepeatY(top + yOffset);
}
if (fixedAttachment)
useFixedAttachment(paintRect.location());
// Clip the final output rect to the paint rect
m_destRect.intersect(paintRect);
// Snap as-yet unsnapped values.
setDestRect(LayoutRect(pixelSnappedIntRect(m_destRect)));
}
void ElementStyleResources::loadPendingImages(ComputedStyle* style)
{
// We must loop over the properties and then look at the style to see if
// a pending image exists, and only load that image. For example:
//
// <style>
// div { background-image: url(a.png); }
// div { background-image: url(b.png); }
// div { background-image: none; }
// </style>
// <div></div>
//
// We call styleImage() for both a.png and b.png adding the
// CSSPropertyBackgroundImage property to the m_pendingImageProperties set,
// then we null out the background image because of the "none".
//
// If we eagerly loaded the images we'd fetch a.png, even though it's not
// used. If we didn't null check below we'd crash since the none actually
// removed all background images.
for (CSSPropertyID property : m_pendingImageProperties) {
switch (property) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = &style->accessBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
if (backgroundLayer->image() && backgroundLayer->image()->isPendingImage())
backgroundLayer->setImage(loadPendingImage(toStylePendingImage(backgroundLayer->image())));
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(style->contentData()); contentData; contentData = contentData->next()) {
if (contentData->isImage()) {
StyleImage* image = toImageContentData(contentData)->image();
if (image->isPendingImage())
toImageContentData(contentData)->setImage(loadPendingImage(toStylePendingImage(image)));
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style->cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
if (StyleImage* image = currentCursor.image()) {
if (image->isPendingImage())
currentCursor.setImage(loadPendingImage(toStylePendingImage(image)));
}
}
}
break;
}
case CSSPropertyListStyleImage: {
if (style->listStyleImage() && style->listStyleImage()->isPendingImage())
style->setListStyleImage(loadPendingImage(toStylePendingImage(style->listStyleImage())));
break;
}
case CSSPropertyBorderImageSource: {
if (style->borderImageSource() && style->borderImageSource()->isPendingImage())
style->setBorderImageSource(loadPendingImage(toStylePendingImage(style->borderImageSource())));
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = style->boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
if (maskImage.image() && maskImage.image()->isPendingImage()) {
RefPtrWillBeRawPtr<StyleImage> loadedImage = loadPendingImage(toStylePendingImage(maskImage.image()));
reflection->setMask(NinePieceImage(loadedImage.release(), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
if (style->maskBoxImageSource() && style->maskBoxImageSource()->isPendingImage())
style->setMaskBoxImageSource(loadPendingImage(toStylePendingImage(style->maskBoxImageSource())));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = &style->accessMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
if (maskLayer->image() && maskLayer->image()->isPendingImage())
maskLayer->setImage(loadPendingImage(toStylePendingImage(maskLayer->image())));
}
break;
}
case CSSPropertyShapeOutside:
if (style->shapeOutside() && style->shapeOutside()->image() && style->shapeOutside()->image()->isPendingImage())
style->shapeOutside()->setImage(loadPendingImage(toStylePendingImage(style->shapeOutside()->image()), CrossOriginAttributeAnonymous));
break;
default:
ASSERT_NOT_REACHED();
}
}
}
static void loadPendingImages(const PendingResources& pendingResources, Document& document, RenderStyle& style, const Element* element)
{
for (auto currentProperty : pendingResources.pendingImages.keys()) {
switch (currentProperty) {
case CSSPropertyBackgroundImage: {
for (FillLayer* backgroundLayer = &style.ensureBackgroundLayers(); backgroundLayer; backgroundLayer = backgroundLayer->next()) {
auto* styleImage = backgroundLayer->image();
if (is<StylePendingImage>(styleImage))
backgroundLayer->setImage(loadPendingImage(document, *styleImage, element));
}
break;
}
case CSSPropertyContent: {
for (ContentData* contentData = const_cast<ContentData*>(style.contentData()); contentData; contentData = contentData->next()) {
if (is<ImageContentData>(*contentData)) {
auto& styleImage = downcast<ImageContentData>(*contentData).image();
if (is<StylePendingImage>(styleImage)) {
if (auto loadedImage = loadPendingImage(document, styleImage, element))
downcast<ImageContentData>(*contentData).setImage(WTFMove(loadedImage));
}
}
}
break;
}
case CSSPropertyCursor: {
if (CursorList* cursorList = style.cursors()) {
for (size_t i = 0; i < cursorList->size(); ++i) {
CursorData& currentCursor = cursorList->at(i);
auto* styleImage = currentCursor.image();
if (is<StylePendingImage>(styleImage))
currentCursor.setImage(loadPendingImage(document, *styleImage, element));
}
}
break;
}
case CSSPropertyListStyleImage: {
auto* styleImage = style.listStyleImage();
if (is<StylePendingImage>(styleImage))
style.setListStyleImage(loadPendingImage(document, *styleImage, element));
break;
}
case CSSPropertyBorderImageSource: {
auto* styleImage = style.borderImageSource();
if (is<StylePendingImage>(styleImage))
style.setBorderImageSource(loadPendingImage(document, *styleImage, element));
break;
}
case CSSPropertyWebkitBoxReflect: {
if (StyleReflection* reflection = style.boxReflect()) {
const NinePieceImage& maskImage = reflection->mask();
auto* styleImage = maskImage.image();
if (is<StylePendingImage>(styleImage)) {
auto loadedImage = loadPendingImage(document, *styleImage, element);
reflection->setMask(NinePieceImage(WTFMove(loadedImage), maskImage.imageSlices(), maskImage.fill(), maskImage.borderSlices(), maskImage.outset(), maskImage.horizontalRule(), maskImage.verticalRule()));
}
}
break;
}
case CSSPropertyWebkitMaskBoxImageSource: {
auto* styleImage = style.maskBoxImageSource();
if (is<StylePendingImage>(styleImage))
style.setMaskBoxImageSource(loadPendingImage(document, *styleImage, element));
break;
}
case CSSPropertyWebkitMaskImage: {
for (FillLayer* maskLayer = &style.ensureMaskLayers(); maskLayer; maskLayer = maskLayer->next()) {
auto* styleImage = maskLayer->image();
if (is<StylePendingImage>(styleImage))
maskLayer->setImage(loadPendingImage(document, *styleImage, element));
}
break;
}
#if ENABLE(CSS_SHAPES)
case CSSPropertyWebkitShapeOutside: {
if (!style.shapeOutside())
return;
StyleImage* image = style.shapeOutside()->image();
if (is<StylePendingImage>(image))
style.shapeOutside()->setImage(loadPendingImage(document, *image, element, LoadPolicy::ShapeOutside));
break;
}
#endif
default:
ASSERT_NOT_REACHED();
}
}
}
void FillLayer::cullEmptyLayers()
{
FillLayer* next;
for (FillLayer* p = this; p; p = next) {
next = p->m_next;
if (next && !next->isImageSet() &&
!next->isXPositionSet() && !next->isYPositionSet() &&
!next->isAttachmentSet() && !next->isClipSet() &&
!next->isCompositeSet() && !next->isOriginSet() &&
!next->isRepeatXSet() && !next->isRepeatYSet()
&& !next->isSizeSet()) {
delete next;
p->m_next = 0;
break;
}
}
}
