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package com.mapswithme.maps.gallery;
import androidx.annotation.NonNull;
import androidx.annotation.Nullable;
import android.view.ViewGroup;
import java.util.List;
import static com.mapswithme.maps.gallery.Constants.TYPE_MORE;
import static com.mapswithme.maps.gallery.Constants.TYPE_PRODUCT;
public abstract class RegularAdapterStrategy<T extends RegularAdapterStrategy.Item>
extends AdapterStrategy<Holders.BaseViewHolder<T>, T>
{
private static final int MAX_ITEMS_BY_DEFAULT = 5;
public RegularAdapterStrategy(@NonNull List<T> items, @Nullable T moreItem,
@Nullable ItemSelectedListener<T> listener)
{
this(items, moreItem, listener, MAX_ITEMS_BY_DEFAULT);
}
public RegularAdapterStrategy(@NonNull List<T> items, @Nullable T moreItem,
@Nullable ItemSelectedListener<T> listener, int maxItems)
{
super(listener);
boolean showMoreItem = moreItem != null && items.size() >= maxItems;
int size = showMoreItem ? maxItems : items.size();
for (int i = 0; i < size; i++)
{
T product = items.get(i);
mItems.add(product);
}
if (showMoreItem)
mItems.add(moreItem);
}
@NonNull
@Override
Holders.BaseViewHolder<T> createViewHolder(@NonNull ViewGroup parent, int viewType)
{
switch (viewType)
{
case TYPE_PRODUCT:
return createProductViewHolder(parent, viewType);
case TYPE_MORE:
return createMoreProductsViewHolder(parent, viewType);
default:
throw new UnsupportedOperationException("This strategy doesn't support specified view type: "
+ viewType);
}
}
@Override
protected void onBindViewHolder(Holders.BaseViewHolder<T> holder, int position)
{
holder.bind(mItems.get(position));
}
@Override
protected int getItemViewType(int position)
{
return mItems.get(position).getType();
}
@NonNull
protected abstract Holders.BaseViewHolder<T> createProductViewHolder(@NonNull ViewGroup parent,
int viewType);
@NonNull
protected abstract Holders.BaseViewHolder<T> createMoreProductsViewHolder(@NonNull ViewGroup parent,
int viewType);
public static class Item extends Items.Item
{
@Constants.ViewType
private final int mType;
public Item(@Constants.ViewType int type, @NonNull String title,
@Nullable String subtitle, @Nullable String url)
{
super(title, url, subtitle);
mType = type;
}
public int getType()
{
return mType;
}
}
}
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