bool FontFaceSet::check(const String& fontString, const String& text, ExceptionState& exceptionState)
{
if (!inActiveDocumentContext())
return false;
Font font;
if (!resolveFontStyle(fontString, font)) {
exceptionState.ThrowDOMException(SyntaxError, "Could not resolve '" + fontString + "' as a font.");
return false;
}
CSSFontSelector* fontSelector = document()->styleEngine()->fontSelector();
FontFaceCache* fontFaceCache = fontSelector->fontFaceCache();
bool hasLoadedFaces = false;
for (const FontFamily* f = &font.fontDescription().family(); f; f = f->next()) {
CSSSegmentedFontFace* face = fontFaceCache->get(font.fontDescription(), f->family());
if (face) {
if (!face->checkFont(nullToSpace(text)))
return false;
hasLoadedFaces = true;
}
}
if (hasLoadedFaces)
return true;
for (const FontFamily* f = &font.fontDescription().family(); f; f = f->next()) {
if (fontSelector->isPlatformFontAvailable(font.fontDescription(), f->family()))
return true;
}
return false;
}
bool FontLoader::checkFont(const String& fontString, const String&)
{
// FIXME: The second parameter (text) is ignored.
FontCascade font;
if (!resolveFontStyle(fontString, font))
return false;
for (unsigned i = 0; i < font.familyCount(); i++) {
CSSSegmentedFontFace* face = m_document->fontSelector().getFontFace(font.fontDescription(), font.familyAt(i));
if (!face || !face->checkFont())
return false;
}
return true;
}
