void StyleSheetContents::parserAppendRule(PassRefPtr<StyleRuleBase> rule)
{
    ASSERT(!rule->isCharsetRule());
    if (rule->isImportRule()) {
        // Parser enforces that @import rules come before anything else except @charset.
        ASSERT(m_childRules.isEmpty());
        m_importRules.append(static_cast<StyleRuleImport*>(rule.get()));
        m_importRules.last()->setParentStyleSheet(this);
        m_importRules.last()->requestStyleSheet();
        return;
    }

#if ENABLE(RESOLUTION_MEDIA_QUERY)
    // Add warning message to inspector if dpi/dpcm values are used for screen media.
    if (rule->isMediaRule())
        reportMediaQueryWarningIfNeeded(singleOwnerDocument(), static_cast<StyleRuleMedia*>(rule.get())->mediaQueries());
#endif

    // NOTE: The selector list has to fit into RuleData. <http://webkit.org/b/118369>
    // If we're adding a rule with a huge number of selectors, split it up into multiple rules
    if (rule->isStyleRule() && toStyleRule(rule.get())->selectorList().componentCount() > RuleData::maximumSelectorComponentCount) {
        Vector<RefPtr<StyleRule>> rules = toStyleRule(rule.get())->splitIntoMultipleRulesWithMaximumSelectorComponentCount(RuleData::maximumSelectorComponentCount);
        m_childRules.appendVector(rules);
        return;
    }

    m_childRules.append(rule);
}
Ejemplo n.º 2
0
void StyleSheetContents::parseAuthorStyleSheet(const CachedCSSStyleSheet* cachedStyleSheet)
{
    bool hasValidMIMEType = true;
    String sheetText = cachedStyleSheet->sheetText(&hasValidMIMEType);

    if (!hasValidMIMEType) {
        ASSERT(sheetText.isNull());
        if (auto* document = singleOwnerDocument()) {
            if (auto* page = document->page())
                page->console().addMessage(MessageSource::Security, MessageLevel::Error, "Did not parse stylesheet at '" + cachedStyleSheet->url().stringCenterEllipsizedToLength() + "' because its MIME type was invalid.");
        }
        return;
    }

    CSSParser p(parserContext());
    p.parseSheet(this, sheetText, TextPosition(), nullptr, true);

    if (m_parserContext.needsSiteSpecificQuirks && isStrictParserMode(m_parserContext.mode)) {
        // Work around <https://bugs.webkit.org/show_bug.cgi?id=28350>.
        DEPRECATED_DEFINE_STATIC_LOCAL(const String, mediaWikiKHTMLFixesStyleSheet, (ASCIILiteral("/* KHTML fix stylesheet */\n/* work around the horizontal scrollbars */\n#column-content { margin-left: 0; }\n\n")));
        // There are two variants of KHTMLFixes.css. One is equal to mediaWikiKHTMLFixesStyleSheet,
        // while the other lacks the second trailing newline.
        if (baseURL().string().endsWith("/KHTMLFixes.css") && !sheetText.isNull() && mediaWikiKHTMLFixesStyleSheet.startsWith(sheetText)
            && sheetText.length() >= mediaWikiKHTMLFixesStyleSheet.length() - 1)
            clearRules();
    }
Ejemplo n.º 3
0
void StyleSheetContents::parserAppendRule(PassRefPtr<StyleRuleBase> rule)
{
    ASSERT(!rule->isCharsetRule());
    if (rule->isImportRule()) {
        // Parser enforces that @import rules come before anything else except @charset.
        ASSERT(m_childRules.isEmpty());
        m_importRules.append(static_cast<StyleRuleImport*>(rule.get()));
        m_importRules.last()->setParentStyleSheet(this);
        m_importRules.last()->requestStyleSheet();
        return;
    }

    // Add warning message to inspector if dpi/dpcm values are used for screen media.
    if (rule->isMediaRule())
        reportMediaQueryWarningIfNeeded(singleOwnerDocument(), static_cast<StyleRuleMedia*>(rule.get())->mediaQueries());

    m_childRules.append(rule);
}