void DocumentRuleSets::appendAuthorStyleSheets(const Vector<RefPtr<CSSStyleSheet>>& styleSheets, MediaQueryEvaluator* medium, InspectorCSSOMWrappers& inspectorCSSOMWrappers, StyleResolver* resolver)
{
// This handles sheets added to the end of the stylesheet list only. In other cases the style resolver
// needs to be reconstructed. To handle insertions too the rule order numbers would need to be updated.
for (auto& cssSheet : styleSheets) {
ASSERT(!cssSheet->disabled());
if (cssSheet->mediaQueries() && !medium->eval(cssSheet->mediaQueries(), resolver))
continue;
m_authorStyle->addRulesFromSheet(cssSheet->contents(), *medium, resolver);
inspectorCSSOMWrappers.collectFromStyleSheetIfNeeded(cssSheet.get());
}
m_authorStyle->shrinkToFit();
collectFeatures();
}
// underListItem denotes that at least one of the ancesters is <li> element.
void collectFeatures(Element& root,
WebDistillabilityFeatures& features,
bool underListItem = false) {
for (Node& node : NodeTraversal::childrenOf(root)) {
bool isListItem = false;
if (!node.isElementNode()) {
continue;
}
features.elementCount++;
Element& element = toElement(node);
if (element.hasTagName(aTag)) {
features.anchorCount++;
} else if (element.hasTagName(formTag)) {
features.formCount++;
} else if (element.hasTagName(inputTag)) {
const HTMLInputElement& input = toHTMLInputElement(element);
if (input.type() == InputTypeNames::text) {
features.textInputCount++;
} else if (input.type() == InputTypeNames::password) {
features.passwordInputCount++;
}
} else if (element.hasTagName(pTag) || element.hasTagName(preTag)) {
if (element.hasTagName(pTag)) {
features.pCount++;
} else {
features.preCount++;
}
if (!underListItem && isGoodForScoring(features, element)) {
unsigned length = textContentLengthSaturated(element);
if (length >= kParagraphLengthThreshold) {
features.mozScore += sqrt(length - kParagraphLengthThreshold);
features.mozScore = std::min(features.mozScore, kMozScoreSaturation);
}
features.mozScoreAllSqrt += sqrt(length);
features.mozScoreAllSqrt =
std::min(features.mozScoreAllSqrt, kMozScoreAllSqrtSaturation);
features.mozScoreAllLinear += length;
features.mozScoreAllLinear =
std::min(features.mozScoreAllLinear, kMozScoreAllLinearSaturation);
}
} else if (element.hasTagName(liTag)) {
isListItem = true;
}
collectFeatures(element, features, underListItem || isListItem);
}
}