nsresult
sbPlayQueueExternalLibraryListener::GenerateUpdates(
sbIMediaItem* aMediaItem,
sbIPropertyArray* aProperties,
Updates& updates)
{
TRACE(("%s[%p]", __FUNCTION__, this));
nsresult rv;
nsCOMPtr<sbILibrary> lib;
rv = aMediaItem->GetLibrary(getter_AddRefs(lib));
NS_ENSURE_SUCCESS(rv, rv);
// This ensures that we have an item that is either in our master library or
// is duplicated in the master library.
nsCOMPtr<sbIMediaItem> internalMediaItem;
if (lib == mMasterLibrary) {
internalMediaItem = aMediaItem;
} else {
rv = mMasterLibrary->GetDuplicate(aMediaItem,
getter_AddRefs(internalMediaItem));
NS_ENSURE_SUCCESS(rv, rv);
if (internalMediaItem) {
sbPropertyUpdate internalUpdate(internalMediaItem, aProperties);
updates.push_back(internalUpdate);
} else {
// If we can't find a duplicate in our master library, just return.
return NS_OK;
}
}
// We found an item in our master library - go find duplicates in our external
// libraries to update.
for (PRInt32 i = 0; i < mExternalLibraries.Count(); i++)
{
if (mExternalLibraries[i] != lib) {
nsCOMPtr<sbIMediaItem> externalMediaItem;
rv = mExternalLibraries[i]->GetDuplicate(internalMediaItem,
getter_AddRefs(externalMediaItem));
if (NS_SUCCEEDED(rv) && externalMediaItem) {
sbPropertyUpdate externalUpdate(externalMediaItem, aProperties);
updates.push_back(externalUpdate);
}
}
}
return NS_OK;
}
void pushUpdate(const DataPackage& p) {
NodeMap::iterator f = nodeMap.find(p.node.get());
if(f != nodeMap.end()) {
*f->second = p;
}
else {
updates.push_back(p);
Updates::iterator& last = nodeMap[p.node.get()] = updates.end(); --last;
}
}
