package eu.faircode.email;
/*
This file is part of FairEmail.
FairEmail is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
NetGuard is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with NetGuard. If not, see .
Copyright 2018 by Marcel Bokhorst (M66B)
*/
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import androidx.paging.PagedList;
import androidx.recyclerview.selection.ItemKeyProvider;
import androidx.recyclerview.widget.RecyclerView;
public class ItemKeyProviderMessage extends ItemKeyProvider {
private RecyclerView recyclerView;
ItemKeyProviderMessage(RecyclerView recyclerView) {
super(ItemKeyProvider.SCOPE_CACHED);
this.recyclerView = recyclerView;
}
@Nullable
@Override
public Long getKey(int pos) {
AdapterMessage adapter = (AdapterMessage) recyclerView.getAdapter();
PagedList list = adapter.getCurrentList();
if (list != null && pos < list.size())
return list.get(pos).id;
else
return null;
}
@Override
public int getPosition(@NonNull Long key) {
AdapterMessage adapter = (AdapterMessage) recyclerView.getAdapter();
PagedList messages = adapter.getCurrentList();
if (messages != null)
for (int i = 0; i < messages.size(); i++) {
TupleMessageEx message = messages.get(i);
if (message != null && message.id.equals(key))
return i;
}
return RecyclerView.NO_POSITION;
}
}