NS_IMETHODIMP
nsDOMStorage::Key(PRUint32 aIndex, nsAString& aKey)
{
// XXXjst: This is as retarded as the DOM spec is, takes an unsigned
// int, but the spec talks about what to do if a negative value is
// passed in.
// XXX: This does a linear search for the key at index, which would
// suck if there's a large numer of indexes. Do we care? If so,
// maybe we need to have a lazily populated key array here or
// something?
if (!CacheStoragePermissions())
return NS_ERROR_DOM_SECURITY_ERR;
if (UseDB())
CacheKeysFromDB();
IndexFinderData data(IsCallerSecure(), aIndex);
mItems.EnumerateEntries(IndexFinder, &data);
if (!data.mItem) {
// aIndex was larger than the number of accessible keys. Throw.
return NS_ERROR_DOM_INDEX_SIZE_ERR;
}
aKey = data.mItem->GetKey();
return NS_OK;
}
nsresult
nsDOMStorage::Clear()
{
if (!CacheStoragePermissions())
return NS_ERROR_DOM_SECURITY_ERR;
if (UseDB())
CacheKeysFromDB();
PRBool foundSecureItem = PR_FALSE;
mItems.EnumerateEntries(CheckSecure, &foundSecureItem);
if (foundSecureItem && !IsCallerSecure()) {
return NS_ERROR_DOM_SECURITY_ERR;
}
#ifdef MOZ_STORAGE
if (UseDB()) {
nsresult rv = InitDB();
NS_ENSURE_SUCCESS(rv, rv);
rv = gStorageDB->ClearStorage(this);
NS_ENSURE_SUCCESS(rv, rv);
}
#endif
mItems.Clear();
BroadcastChangeNotification();
return NS_OK;
}
nsTArray<nsString> *
nsDOMStorage::GetKeys()
{
if (UseDB())
CacheKeysFromDB();
KeysArrayBuilderStruct keystruct;
keystruct.callerIsSecure = IsCallerSecure();
keystruct.keys = new nsTArray<nsString>();
if (keystruct.keys)
mItems.EnumerateEntries(KeysArrayBuilder, &keystruct);
return keystruct.keys;
}
NS_IMETHODIMP
nsDOMStorage::GetLength(PRUint32 *aLength)
{
if (!CacheStoragePermissions())
return NS_ERROR_DOM_SECURITY_ERR;
if (UseDB())
CacheKeysFromDB();
ItemCounterState state(IsCallerSecure());
mItems.EnumerateEntries(ItemCounter, &state);
*aLength = state.mCount;
return NS_OK;
}
NS_IMETHODIMP
nsDOMStorage::GetLength(PRUint32 *aLength)
{
if (!CacheStoragePermissions())
return NS_ERROR_DOM_SECURITY_ERR;
// Force reload of items from database. This ensures sync localStorages for
// same origins among different windows.
mItemsCached = PR_FALSE;
if (UseDB())
CacheKeysFromDB();
ItemCounterState state(IsCallerSecure());
mItems.EnumerateEntries(ItemCounter, &state);
*aLength = state.mCount;
return NS_OK;
}
