void FirstLetterPseudoElement::attachFirstLetterTextLayoutObjects()
{
LayoutObject* nextLayoutObject = FirstLetterPseudoElement::firstLetterTextLayoutObject(*this);
ASSERT(nextLayoutObject);
ASSERT(nextLayoutObject->isText());
// The original string is going to be either a generated content string or a DOM node's
// string. We want the original string before it got transformed in case first-letter has
// no text-transform or a different text-transform applied to it.
String oldText = toLayoutText(nextLayoutObject)->isTextFragment() ? toLayoutTextFragment(nextLayoutObject)->completeText() : toLayoutText(nextLayoutObject)->originalText();
ASSERT(oldText.impl());
ComputedStyle* pseudoStyle = styleForFirstLetter(nextLayoutObject->parent());
layoutObject()->setStyle(pseudoStyle);
// FIXME: This would already have been calculated in firstLetterLayoutObject. Can we pass the length through?
unsigned length = FirstLetterPseudoElement::firstLetterLength(oldText);
// Construct a text fragment for the text after the first letter.
// This text fragment might be empty.
LayoutTextFragment* remainingText =
new LayoutTextFragment(nextLayoutObject->node() ? nextLayoutObject->node() : &nextLayoutObject->document(), oldText.impl(), length, oldText.length() - length);
remainingText->setFirstLetterPseudoElement(this);
remainingText->setIsRemainingTextLayoutObject(true);
remainingText->setStyle(nextLayoutObject->mutableStyle());
if (remainingText->node())
remainingText->node()->setLayoutObject(remainingText);
m_remainingTextLayoutObject = remainingText;
LayoutObject* nextSibling = layoutObject()->nextSibling();
layoutObject()->parent()->addChild(remainingText, nextSibling);
// Construct text fragment for the first letter.
LayoutTextFragment* letter = new LayoutTextFragment(&nextLayoutObject->document(), oldText.impl(), 0, length);
letter->setFirstLetterPseudoElement(this);
letter->setStyle(pseudoStyle);
layoutObject()->addChild(letter);
nextLayoutObject->destroy();
}
void PaintPropertyTreeBuilder::updateMainThreadScrollingReasons(
const LayoutObject& object,
PaintPropertyTreeBuilderContext& context) {
if (context.current.scroll &&
!object.document().settings()->threadedScrollingEnabled())
context.current.scroll->addMainThreadScrollingReasons(
MainThreadScrollingReason::kThreadedScrollingDisabled);
if (object.isBackgroundAttachmentFixedObject()) {
auto* scrollNode = context.current.scroll;
while (
scrollNode &&
!scrollNode->hasMainThreadScrollingReasons(
MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects)) {
scrollNode->addMainThreadScrollingReasons(
MainThreadScrollingReason::kHasBackgroundAttachmentFixedObjects);
scrollNode = scrollNode->parent();
}
}
}
// static
TextPainter::Style TextPainter::textPaintingStyle(LayoutObject& layoutObject, const ComputedStyle& style, bool usesTextAsClip, bool isPrinting)
{
TextPainter::Style textStyle;
if (usesTextAsClip) {
// When we use the text as a clip, we only care about the alpha, thus we make all the colors black.
textStyle.currentColor = Color::black;
textStyle.fillColor = Color::black;
textStyle.strokeColor = Color::black;
textStyle.emphasisMarkColor = Color::black;
textStyle.strokeWidth = style.textStrokeWidth();
textStyle.shadow = 0;
} else {
textStyle.currentColor = style.visitedDependentColor(CSSPropertyColor);
textStyle.fillColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextFillColor);
textStyle.strokeColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextStrokeColor);
textStyle.emphasisMarkColor = layoutObject.resolveColor(style, CSSPropertyWebkitTextEmphasisColor);
textStyle.strokeWidth = style.textStrokeWidth();
textStyle.shadow = style.textShadow();
// Adjust text color when printing with a white background.
ASSERT(layoutObject.document().printing() == isPrinting);
bool forceBackgroundToWhite = BoxPainter::shouldForceWhiteBackgroundForPrintEconomy(style, layoutObject.document());
if (forceBackgroundToWhite) {
textStyle.fillColor = textColorForWhiteBackground(textStyle.fillColor);
textStyle.strokeColor = textColorForWhiteBackground(textStyle.strokeColor);
textStyle.emphasisMarkColor = textColorForWhiteBackground(textStyle.emphasisMarkColor);
}
// Text shadows are disabled when printing. http://crbug.com/258321
if (isPrinting)
textStyle.shadow = 0;
}
return textStyle;
}
void writeResources(TextStream& ts, const LayoutObject& object, int indent)
{
const ComputedStyle& style = object.styleRef();
const SVGComputedStyle& svgStyle = style.svgStyle();
// FIXME: We want to use SVGResourcesCache to determine which resources are present, instead of quering the resource <-> id cache.
// For now leave the DRT output as is, but later on we should change this so cycles are properly ignored in the DRT output.
LayoutObject& layoutObject = const_cast<LayoutObject&>(object);
if (!svgStyle.maskerResource().isEmpty()) {
if (LayoutSVGResourceMasker* masker = getLayoutSVGResourceById<LayoutSVGResourceMasker>(object.document(), svgStyle.maskerResource())) {
writeIndent(ts, indent);
ts << " ";
writeNameAndQuotedValue(ts, "masker", svgStyle.maskerResource());
ts << " ";
writeStandardPrefix(ts, *masker, 0);
ts << " " << masker->resourceBoundingBox(&layoutObject) << "\n";
}
}
if (!svgStyle.clipperResource().isEmpty()) {
if (LayoutSVGResourceClipper* clipper = getLayoutSVGResourceById<LayoutSVGResourceClipper>(object.document(), svgStyle.clipperResource())) {
writeIndent(ts, indent);
ts << " ";
writeNameAndQuotedValue(ts, "clipPath", svgStyle.clipperResource());
ts << " ";
writeStandardPrefix(ts, *clipper, 0);
ts << " " << clipper->resourceBoundingBox(&layoutObject) << "\n";
}
}
if (!svgStyle.filterResource().isEmpty()) {
if (LayoutSVGResourceFilter* filter = getLayoutSVGResourceById<LayoutSVGResourceFilter>(object.document(), svgStyle.filterResource())) {
writeIndent(ts, indent);
ts << " ";
writeNameAndQuotedValue(ts, "filter", svgStyle.filterResource());
ts << " ";
writeStandardPrefix(ts, *filter, 0);
ts << " " << filter->resourceBoundingBox(&layoutObject) << "\n";
}
}
}
