bool MediaQuerySet::parse(const String& mediaString)
{
CSSParser parser(CSSStrictMode);
Vector<std::unique_ptr<MediaQuery>> result;
Vector<String> list;
mediaString.split(',', list);
for (unsigned i = 0; i < list.size(); ++i) {
String medium = list[i].stripWhiteSpace();
if (medium.isEmpty()) {
if (!m_fallbackToDescriptor)
return false;
continue;
}
std::unique_ptr<MediaQuery> mediaQuery = parser.parseMediaQuery(medium);
if (!mediaQuery) {
if (!m_fallbackToDescriptor)
return false;
String mediaDescriptor = parseMediaDescriptor(medium);
if (mediaDescriptor.isNull())
continue;
mediaQuery = std::make_unique<MediaQuery>(MediaQuery::None, mediaDescriptor, nullptr);
}
result.append(std::move(mediaQuery));
}
// ",,,," falls straight through, but is not valid unless fallback
if (!m_fallbackToDescriptor && list.isEmpty()) {
String strippedMediaString = mediaString.stripWhiteSpace();
if (!strippedMediaString.isEmpty())
return false;
}
m_queries = std::move(result);
return true;
}
bool MediaQuerySet::add(const String& queryString)
{
CSSParser parser(CSSStrictMode);
std::unique_ptr<MediaQuery> parsedQuery = parser.parseMediaQuery(queryString);
if (!parsedQuery && m_fallbackToDescriptor) {
String medium = parseMediaDescriptor(queryString);
if (!medium.isNull())
parsedQuery = std::make_unique<MediaQuery>(MediaQuery::None, medium, nullptr);
}
if (!parsedQuery)
return false;
m_queries.append(std::move(parsedQuery));
return true;
}
bool MediaQuerySet::add(const String& queryString)
{
CSSParser parser(CSSStrictMode);
OwnPtr<MediaQuery> parsedQuery = parser.parseMediaQuery(queryString);
if (!parsedQuery && m_fallbackToDescriptor) {
String medium = parseMediaDescriptor(queryString);
if (!medium.isNull())
parsedQuery = adoptPtr(new MediaQuery(MediaQuery::None, medium, nullptr));
}
if (!parsedQuery)
return false;
m_queries.append(parsedQuery.release());
return true;
}
void MediaList::appendMedium(const String& newMedium, ExceptionCode& ec)
{
ec = INVALID_CHARACTER_ERR;
CSSParser p(true);
if (p.parseMediaQuery(this, newMedium)) {
ec = 0;
} else if (m_fallback) {
String medium = parseMediaDescriptor(newMedium);
if (!medium.isNull()) {
m_queries.append(new MediaQuery(MediaQuery::None, medium, 0));
ec = 0;
}
}
if (!ec)
notifyChanged();
}
void MediaList::setMediaText(const String& value, ExceptionCode& ec)
{
RefPtr<MediaList> tempMediaList = MediaList::create();
CSSParser p(true);
Vector<String> list;
value.split(',', list);
Vector<String>::const_iterator end = list.end();
for (Vector<String>::const_iterator it = list.begin(); it != end; ++it) {
String medium = (*it).stripWhiteSpace();
if (!medium.isEmpty()) {
if (!p.parseMediaQuery(tempMediaList.get(), medium)) {
if (m_fallback) {
String mediaDescriptor = parseMediaDescriptor(medium);
if (!mediaDescriptor.isNull())
tempMediaList->m_queries.append(new MediaQuery(MediaQuery::None, mediaDescriptor, 0));
} else {
ec = SYNTAX_ERR;
return;
}
}
} else if (!m_fallback) {
ec = SYNTAX_ERR;
return;
}
}
// ",,,," falls straight through, but is not valid unless fallback
if (!m_fallback && list.begin() == list.end()) {
String s = value.stripWhiteSpace();
if (!s.isEmpty()) {
ec = SYNTAX_ERR;
return;
}
}
ec = 0;
deleteAllValues(m_queries);
m_queries = tempMediaList->m_queries;
tempMediaList->m_queries.clear();
notifyChanged();
}
void MediaList::deleteMedium(const String& oldMedium, ExceptionCode& ec)
{
RefPtr<MediaList> tempMediaList = MediaList::create();
CSSParser p(true);
MediaQuery* oldQuery = 0;
bool deleteOldQuery = false;
if (p.parseMediaQuery(tempMediaList.get(), oldMedium)) {
if (tempMediaList->m_queries.size() > 0)
oldQuery = tempMediaList->m_queries[0];
} else if (m_fallback) {
String medium = parseMediaDescriptor(oldMedium);
if (!medium.isNull()) {
oldQuery = new MediaQuery(MediaQuery::None, medium, 0);
deleteOldQuery = true;
}
}
// DOM Style Sheets spec doesn't allow SYNTAX_ERR to be thrown in deleteMedium
ec = NOT_FOUND_ERR;
if (oldQuery) {
for(size_t i = 0; i < m_queries.size(); ++i) {
MediaQuery* a = m_queries[i];
if (*a == *oldQuery) {
m_queries.remove(i);
delete a;
ec = 0;
break;
}
}
if (deleteOldQuery)
delete oldQuery;
}
if (!ec)
notifyChanged();
}
bool MediaQuerySet::remove(const String& queryStringToRemove)
{
CSSParser parser(CSSStrictMode);
std::unique_ptr<MediaQuery> parsedQuery = parser.parseMediaQuery(queryStringToRemove);
if (!parsedQuery && m_fallbackToDescriptor) {
String medium = parseMediaDescriptor(queryStringToRemove);
if (!medium.isNull())
parsedQuery = std::make_unique<MediaQuery>(MediaQuery::None, medium, nullptr);
}
if (!parsedQuery)
return false;
for (size_t i = 0; i < m_queries.size(); ++i) {
MediaQuery* query = m_queries[i].get();
if (*query == *parsedQuery) {
m_queries.remove(i);
return true;
}
}
return false;
}