bool MusicSongsListPlayWidget::showArtPicture(const QString &name) const
{
QPixmap originPath(QString(ART_DOWNLOAD_AL + name + SKN_FILE));
if(!originPath.isNull())
{
m_artPictureLabel->setPixmap(originPath.scaled(60, 60));
return true;
}
return false;
}
bool MusicSongsListItemInfoWidget::showArtPicture(const QString &name)
{
QPixmap originPath(QString(ART_DOWNLOAD_AL + name + SKN_FILE));
if(!originPath.isNull())
{
ui->artPicture->setPixmap(originPath.scaled(60, 60));
return true;
}
return false;
}
void DatabaseTracker::deleteOriginLockFor(SecurityOrigin* origin)
{
ASSERT(!m_databaseGuard.tryLock());
// There is not always an instance of an OriginLock associated with an origin.
// For example, if the OriginLock lock file was created by a previous run of
// the browser which has now terminated, and the current browser process
// has not executed any database transactions from this origin that would
// have created the OriginLock instance in memory. In this case, we will have
// a lock file but not an OriginLock instance in memory.
// This function is only called if we are already deleting all the database
// files in this origin. We'll give the OriginLock one chance to do an
// orderly clean up first when we remove its ref from the m_originLockMap.
// This may or may not be possible depending on whether other threads are
// also using the OriginLock at the same time. After that, we will delete the lock file.
m_originLockMap.remove(origin->databaseIdentifier());
OriginLock::deleteLockFile(originPath(origin));
}
PassRefPtr<OriginLock> DatabaseTracker::originLockFor(SecurityOrigin* origin)
{
MutexLocker lockDatabase(m_databaseGuard);
String databaseIdentifier = origin->databaseIdentifier();
// The originLockMap is accessed from multiple DatabaseThreads since
// different script contexts can be writing to different databases from
// the same origin. Hence, the databaseIdentifier key needs to be an
// isolated copy. An isolated copy gives us a value whose refCounting is
// thread-safe, since our copy is guarded by the m_databaseGuard mutex.
databaseIdentifier = databaseIdentifier.isolatedCopy();
OriginLockMap::AddResult addResult =
m_originLockMap.add(databaseIdentifier, RefPtr<OriginLock>());
if (!addResult.isNewEntry)
return addResult.iterator->value;
String path = originPath(origin);
RefPtr<OriginLock> lock = adoptRef(new OriginLock(path));
ASSERT(lock);
addResult.iterator->value = lock;
return lock.release();
}
// It is the caller's responsibility to make sure that nobody is trying to create, delete, open, or close databases in this origin while the deletion is
// taking place.
bool DatabaseTracker::deleteOrigin(SecurityOrigin* origin)
{
Vector<String> databaseNames;
{
MutexLocker lockDatabase(m_databaseGuard);
openTrackerDatabase(DontCreateIfDoesNotExist);
if (!m_database.isOpen())
return false;
if (!databaseNamesForOriginNoLock(origin, databaseNames)) {
LOG_ERROR("Unable to retrieve list of database names for origin %s", origin->databaseIdentifier().ascii().data());
return false;
}
if (!canDeleteOrigin(origin)) {
LOG_ERROR("Tried to delete an origin (%s) while either creating database in it or already deleting it", origin->databaseIdentifier().ascii().data());
ASSERT_NOT_REACHED();
return false;
}
recordDeletingOrigin(origin);
}
// We drop the lock here because holding locks during a call to deleteDatabaseFile will deadlock.
for (unsigned i = 0; i < databaseNames.size(); ++i) {
if (!deleteDatabaseFile(origin, databaseNames[i])) {
// Even if the file can't be deleted, we want to try and delete the rest, don't return early here.
LOG_ERROR("Unable to delete file for database %s in origin %s", databaseNames[i].ascii().data(), origin->databaseIdentifier().ascii().data());
}
}
{
MutexLocker lockDatabase(m_databaseGuard);
deleteOriginLockFor(origin);
doneDeletingOrigin(origin);
SQLiteStatement statement(m_database, "DELETE FROM Databases WHERE origin=?");
if (statement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of databases from origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
statement.bindText(1, origin->databaseIdentifier());
if (!statement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of databases from origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
SQLiteStatement originStatement(m_database, "DELETE FROM Origins WHERE origin=?");
if (originStatement.prepare() != SQLResultOk) {
LOG_ERROR("Unable to prepare deletion of origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
originStatement.bindText(1, origin->databaseIdentifier());
if (!originStatement.executeCommand()) {
LOG_ERROR("Unable to execute deletion of databases from origin %s from tracker", origin->databaseIdentifier().ascii().data());
return false;
}
SQLiteFileSystem::deleteEmptyDatabaseDirectory(originPath(origin));
RefPtr<SecurityOrigin> originPossiblyLastReference = origin;
bool isEmpty = true;
openTrackerDatabase(DontCreateIfDoesNotExist);
if (m_database.isOpen()) {
SQLiteStatement statement(m_database, "SELECT origin FROM Origins");
if (statement.prepare() != SQLResultOk)
LOG_ERROR("Failed to prepare statement.");
else if (statement.step() == SQLResultRow)
isEmpty = false;
}
// If we removed the last origin, do some additional deletion.
if (isEmpty) {
if (m_database.isOpen())
m_database.close();
SQLiteFileSystem::deleteDatabaseFile(trackerDatabasePath());
SQLiteFileSystem::deleteEmptyDatabaseDirectory(m_databaseDirectoryPath);
}
if (m_client) {
m_client->dispatchDidModifyOrigin(origin);
for (unsigned i = 0; i < databaseNames.size(); ++i)
m_client->dispatchDidModifyDatabase(origin, databaseNames[i]);
}
}
return true;
}
