android/src/com/mapswithme/maps/bookmarks/data/CategoryDataSource.java


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package com.mapswithme.maps.bookmarks.data;

import androidx.annotation.NonNull;
import androidx.recyclerview.widget.RecyclerView;

import com.mapswithme.maps.content.DataSource;

public class CategoryDataSource extends RecyclerView.AdapterDataObserver implements
                                                                         DataSource<BookmarkCategory>
{
  @NonNull
  private BookmarkCategory mCategory;

  public CategoryDataSource(@NonNull BookmarkCategory category)
  {
    mCategory = category;
  }

  @NonNull
  @Override
  public BookmarkCategory getData()
  {
    return mCategory;
  }

  @Override
  public void onChanged()
  {
    super.onChanged();
    AbstractCategoriesSnapshot.Default snapshot =
        BookmarkManager.INSTANCE.getCategoriesSnapshot(mCategory.getType().getFilterStrategy());

    int index = snapshot.indexOfOrThrow(mCategory);
    mCategory = snapshot.getItems().get(index);
  }
}