PassRefPtr<SimpleFontData> CSSFontFaceSource::getFontData(const FontDescription& fontDescription, bool syntheticBold, bool syntheticItalic, CSSFontSelector* fontSelector) { // If the font hasn't loaded or an error occurred, then we've got nothing. if (!isValid()) return 0; if (!m_font #if ENABLE(SVG_FONTS) && !m_svgFontFaceElement #endif ) { // We're local. Just return a SimpleFontData from the normal cache. // We don't want to check alternate font family names here, so pass true as the checkingAlternateName parameter. return fontCache()->getCachedFontData(fontDescription, m_string, true); } // See if we have a mapping in our FontData cache. unsigned hashKey = (fontDescription.computedPixelSize() + 1) << 5 | fontDescription.widthVariant() << 3 | (fontDescription.orientation() == Vertical ? 4 : 0) | (syntheticBold ? 2 : 0) | (syntheticItalic ? 1 : 0); RefPtr<SimpleFontData>& fontData = m_fontDataTable.add(hashKey, nullptr).iterator->value; if (fontData) return fontData; // No release, because fontData is a reference to a RefPtr that is held in the m_fontDataTable. // If we are still loading, then we let the system pick a font. if (isLoaded()) { if (m_font) { #if ENABLE(SVG_FONTS) if (m_hasExternalSVGFont) { // For SVG fonts parse the external SVG document, and extract the <font> element. if (!m_font->ensureSVGFontData()) return 0; if (!m_externalSVGFontElement) { String fragmentIdentifier; size_t start = m_string.find('#'); if (start != notFound) fragmentIdentifier = m_string.string().substring(start + 1); m_externalSVGFontElement = m_font->getSVGFontById(fragmentIdentifier); } if (!m_externalSVGFontElement) return 0; if (auto firstFontFace = childrenOfType<SVGFontFaceElement>(m_externalSVGFontElement.get()).first()) { if (!m_svgFontFaceElement) { // We're created using a CSS @font-face rule, that means we're not associated with a SVGFontFaceElement. // Use the imported <font-face> tag as referencing font-face element for these cases. m_svgFontFaceElement = firstFontFace; } fontData = SimpleFontData::create(SVGFontData::create(firstFontFace), fontDescription.computedPixelSize(), syntheticBold, syntheticItalic); } } else #endif { // Create new FontPlatformData from our CGFontRef, point size and ATSFontRef. if (!m_font->ensureCustomFontData()) return 0; fontData = SimpleFontData::create(m_font->platformDataFromCustomData(fontDescription.computedPixelSize(), syntheticBold, syntheticItalic, fontDescription.orientation(), fontDescription.widthVariant(), fontDescription.renderingMode()), true, false); } } else { #if ENABLE(SVG_FONTS) // In-Document SVG Fonts if (m_svgFontFaceElement) fontData = SimpleFontData::create(SVGFontData::create(m_svgFontFaceElement.get()), fontDescription.computedPixelSize(), syntheticBold, syntheticItalic); #endif } } else { // Kick off the load. Do it soon rather than now, because we may be in the middle of layout, // and the loader may invoke arbitrary delegate or event handler code. fontSelector->beginLoadingFontSoon(m_font.get()); // This temporary font is not retained and should not be returned. FontCachePurgePreventer fontCachePurgePreventer; SimpleFontData* temporaryFont = fontCache()->getNonRetainedLastResortFallbackFont(fontDescription); fontData = SimpleFontData::create(temporaryFont->platformData(), true, true); } return fontData; // No release, because fontData is a reference to a RefPtr that is held in the m_fontDataTable. }
SimpleFontData* CSSFontFaceSource::getFontData(const FontDescription& fontDescription, bool syntheticBold, bool syntheticItalic, CSSFontSelector* fontSelector) { // If the font hasn't loaded or an error occurred, then we've got nothing. if (!isValid()) return 0; #if ENABLE(SVG_FONTS) if (!m_font && !m_svgFontFaceElement) { #else if (!m_font) { #endif SimpleFontData* fontData = fontCache()->getCachedFontData(fontDescription, m_string); // We're local. Just return a SimpleFontData from the normal cache. return fontData; } // See if we have a mapping in our FontData cache. unsigned hashKey = fontDescription.computedPixelSize() << 3 | (fontDescription.orientation() == Vertical ? 4 : 0) | (syntheticBold ? 2 : 0) | (syntheticItalic ? 1 : 0); if (SimpleFontData* cachedData = m_fontDataTable.get(hashKey)) return cachedData; OwnPtr<SimpleFontData> fontData; // If we are still loading, then we let the system pick a font. if (isLoaded()) { if (m_font) { #if ENABLE(SVG_FONTS) if (m_font->isSVGFont()) { // For SVG fonts parse the external SVG document, and extract the <font> element. if (!m_font->ensureSVGFontData()) return 0; if (!m_externalSVGFontElement) m_externalSVGFontElement = m_font->getSVGFontById(SVGURIReference::getTarget(m_string)); if (!m_externalSVGFontElement) return 0; SVGFontFaceElement* fontFaceElement = 0; // Select first <font-face> child for (Node* fontChild = m_externalSVGFontElement->firstChild(); fontChild; fontChild = fontChild->nextSibling()) { if (fontChild->hasTagName(SVGNames::font_faceTag)) { fontFaceElement = static_cast<SVGFontFaceElement*>(fontChild); break; } } if (fontFaceElement) { if (!m_svgFontFaceElement) { // We're created using a CSS @font-face rule, that means we're not associated with a SVGFontFaceElement. // Use the imported <font-face> tag as referencing font-face element for these cases. m_svgFontFaceElement = fontFaceElement; } fontData.set(new SimpleFontData(adoptPtr(new SVGFontData(fontFaceElement)), fontDescription.computedPixelSize(), syntheticBold, syntheticItalic)); } } else #endif { // Create new FontPlatformData from our CGFontRef, point size and ATSFontRef. if (!m_font->ensureCustomFontData()) return 0; fontData.set(new SimpleFontData(m_font->platformDataFromCustomData(fontDescription.computedPixelSize(), syntheticBold, syntheticItalic, fontDescription.orientation(), fontDescription.renderingMode()), true, false)); } } else { #if ENABLE(SVG_FONTS) // In-Document SVG Fonts if (m_svgFontFaceElement) fontData.set(new SimpleFontData(adoptPtr(new SVGFontData(m_svgFontFaceElement)), fontDescription.computedPixelSize(), syntheticBold, syntheticItalic)); #endif } } else { // Kick off the load now. if (CachedResourceLoader* cachedResourceLoader = fontSelector->cachedResourceLoader()) m_font->beginLoadIfNeeded(cachedResourceLoader); // FIXME: m_string is a URL so it makes no sense to pass it as a family name. SimpleFontData* tempData = fontCache()->getCachedFontData(fontDescription, m_string); if (!tempData) tempData = fontCache()->getLastResortFallbackFont(fontDescription); fontData.set(new SimpleFontData(tempData->platformData(), true, true)); } SimpleFontData* fontDataRawPtr = fontData.leakPtr(); m_fontDataTable.set(hashKey, fontDataRawPtr); return fontDataRawPtr; } #if ENABLE(SVG_FONTS) bool CSSFontFaceSource::isSVGFontFaceSource() const { return m_svgFontFaceElement || (m_font && m_font->isSVGFont()); } #endif }
PassRefPtr<SimpleFontData> CSSFontFaceSource::getFontData(const FontDescription& fontDescription) { // If the font hasn't loaded or an error occurred, then we've got nothing. if (!isValid()) return 0; if (isLocal()) { // We're local. Just return a SimpleFontData from the normal cache. // We don't want to check alternate font family names here, so pass true as the checkingAlternateName parameter. RefPtr<SimpleFontData> fontData = FontCache::fontCache()->getFontData(fontDescription, m_string, true); m_histograms.recordLocalFont(fontData); return fontData; } // See if we have a mapping in our FontData cache. AtomicString emptyFontFamily = ""; FontCacheKey key = fontDescription.cacheKey(emptyFontFamily); RefPtr<SimpleFontData>& fontData = m_fontDataTable.add(key.hash(), 0).iterator->value; if (fontData) return fontData; // No release, because fontData is a reference to a RefPtr that is held in the m_fontDataTable. // If we are still loading, then we let the system pick a font. if (isLoaded()) { if (m_font) { #if ENABLE(SVG_FONTS) if (m_hasExternalSVGFont) { // For SVG fonts parse the external SVG document, and extract the <font> element. if (!m_font->ensureSVGFontData()) return 0; if (!m_externalSVGFontElement) { String fragmentIdentifier; size_t start = m_string.find('#'); if (start != kNotFound) fragmentIdentifier = m_string.string().substring(start + 1); m_externalSVGFontElement = m_font->getSVGFontById(fragmentIdentifier); } if (!m_externalSVGFontElement) return 0; SVGFontFaceElement* fontFaceElement = 0; // Select first <font-face> child for (Node* fontChild = m_externalSVGFontElement->firstChild(); fontChild; fontChild = fontChild->nextSibling()) { if (fontChild->hasTagName(SVGNames::font_faceTag)) { fontFaceElement = toSVGFontFaceElement(fontChild); break; } } if (fontFaceElement) { if (!m_svgFontFaceElement) { // We're created using a CSS @font-face rule, that means we're not associated with a SVGFontFaceElement. // Use the imported <font-face> tag as referencing font-face element for these cases. m_svgFontFaceElement = fontFaceElement; } fontData = SimpleFontData::create( SVGFontData::create(fontFaceElement), fontDescription.effectiveFontSize(), fontDescription.isSyntheticBold(), fontDescription.isSyntheticItalic()); } } else #endif { // Create new FontPlatformData from our CGFontRef, point size and ATSFontRef. if (!m_font->ensureCustomFontData()) return 0; fontData = SimpleFontData::create( m_font->platformDataFromCustomData(fontDescription.effectiveFontSize(), fontDescription.isSyntheticBold(), fontDescription.isSyntheticItalic(), fontDescription.orientation(), fontDescription.widthVariant()), CustomFontData::create(false)); } } else { #if ENABLE(SVG_FONTS) // In-Document SVG Fonts if (m_svgFontFaceElement) { fontData = SimpleFontData::create( SVGFontData::create(m_svgFontFaceElement.get()), fontDescription.effectiveFontSize(), fontDescription.isSyntheticBold(), fontDescription.isSyntheticItalic()); } #endif } } else { // This temporary font is not retained and should not be returned. FontCachePurgePreventer fontCachePurgePreventer; SimpleFontData* temporaryFont = FontCache::fontCache()->getNonRetainedLastResortFallbackFont(fontDescription); if (!temporaryFont) { ASSERT_NOT_REACHED(); return 0; } RefPtr<CSSCustomFontData> cssFontData = CSSCustomFontData::create(true); cssFontData->setCSSFontFaceSource(this); fontData = SimpleFontData::create(temporaryFont->platformData(), cssFontData); } return fontData; // No release, because fontData is a reference to a RefPtr that is held in the m_fontDataTable. }
SimpleFontData* CSSFontFaceSource::getFontData(const FontDescription& fontDescription, bool syntheticBold, bool syntheticItalic, CSSFontSelector* fontSelector) { // If the font hasn't loaded or an error occurred, then we've got nothing. if (!isValid()) return 0; if (!m_font #if ENABLE(SVG_FONTS) && !m_svgFontFaceElement #endif ) { // We're local. Just return a SimpleFontData from the normal cache. return fontCache()->getCachedFontData(fontDescription, m_string); } // See if we have a mapping in our FontData cache. unsigned hashKey = (fontDescription.computedPixelSize() + 1) << 6 | fontDescription.widthVariant() << 4 | (fontDescription.textOrientation() == TextOrientationUpright ? 8 : 0) | (fontDescription.orientation() == Vertical ? 4 : 0) | (syntheticBold ? 2 : 0) | (syntheticItalic ? 1 : 0); SimpleFontData*& cachedData = m_fontDataTable.add(hashKey, 0).first->second; if (cachedData) return cachedData; OwnPtr<SimpleFontData> fontData; // If we are still loading, then we let the system pick a font. if (isLoaded()) { if (m_font) { #if ENABLE(SVG_FONTS) if (m_hasExternalSVGFont) { // For SVG fonts parse the external SVG document, and extract the <font> element. if (!m_font->ensureSVGFontData()) return 0; if (!m_externalSVGFontElement) { String fragmentIdentifier; size_t start = m_string.find('#'); if (start != notFound) fragmentIdentifier = m_string.string().substring(start + 1); m_externalSVGFontElement = m_font->getSVGFontById(fragmentIdentifier); } if (!m_externalSVGFontElement) return 0; SVGFontFaceElement* fontFaceElement = 0; // Select first <font-face> child for (Node* fontChild = m_externalSVGFontElement->firstChild(); fontChild; fontChild = fontChild->nextSibling()) { if (fontChild->hasTagName(SVGNames::font_faceTag)) { fontFaceElement = static_cast<SVGFontFaceElement*>(fontChild); break; } } if (fontFaceElement) { if (!m_svgFontFaceElement) { // We're created using a CSS @font-face rule, that means we're not associated with a SVGFontFaceElement. // Use the imported <font-face> tag as referencing font-face element for these cases. m_svgFontFaceElement = fontFaceElement; } fontData = adoptPtr(new SimpleFontData(SVGFontData::create(fontFaceElement), fontDescription.computedPixelSize(), syntheticBold, syntheticItalic)); } } else #endif { // Create new FontPlatformData from our CGFontRef, point size and ATSFontRef. if (!m_font->ensureCustomFontData()) return 0; fontData = adoptPtr(new SimpleFontData(m_font->platformDataFromCustomData(fontDescription.computedPixelSize(), syntheticBold, syntheticItalic, fontDescription.orientation(), fontDescription.textOrientation(), fontDescription.widthVariant(), fontDescription.renderingMode()), true, false)); } } else { #if ENABLE(SVG_FONTS) // In-Document SVG Fonts if (m_svgFontFaceElement) fontData = adoptPtr(new SimpleFontData(SVGFontData::create(m_svgFontFaceElement.get()), fontDescription.computedPixelSize(), syntheticBold, syntheticItalic)); #endif } } else { // Kick off the load. Do it soon rather than now, because we may be in the middle of layout, // and the loader may invoke arbitrary delegate or event handler code. fontSelector->beginLoadingFontSoon(m_font.get()); // This temporary font is not retained and should not be returned. FontCachePurgePreventer fontCachePurgePreventer; SimpleFontData* temporaryFont = fontCache()->getNonRetainedLastResortFallbackFont(fontDescription); fontData = adoptPtr(new SimpleFontData(temporaryFont->platformData(), true, true)); } if (Document* document = fontSelector->document()) { cachedData = fontData.get(); document->registerCustomFont(fontData.release()); } return cachedData; }