bool QMediaPlayerPrivate::isInChain(QUrl url)
{
// Check whether a URL is already in the chain of playlists.
// Also see a comment in parentPlaylist().
for (QMediaPlaylist *current = rootMedia.playlist(); current && current != playlist; current = current->currentMedia().playlist())
if (current->currentMedia().canonicalUrl() == url) {
return true;
}
return false;
}
QMediaPlaylist *QMediaPlayerPrivate::parentPlaylist(QMediaPlaylist *pls)
{
// This function finds a parent playlist for an item in the active chain of playlists.
// Every item in the chain comes from currentMedia() of its parent.
// We don't need to travers the whole tree of playlists,
// but only the subtree of active ones.
for (QMediaPlaylist *current = rootMedia.playlist(); current && current != pls; current = current->currentMedia().playlist())
if (current->currentMedia().playlist() == pls)
return current;
return 0;
}
