Flatten due type filter list

1 files changed, 84 insertions, 0 deletions

diff --git a/app/src/main/java/it/niedermann/nextcloud/deck/ui/filter/FilterDueTypeAdapter.java b/app/src/main/java/it/niedermann/nextcloud/deck/ui/filter/FilterDueTypeAdapter.java
new file mode 100644
index 000000000..dab5bb9f7
--- /dev/null
+++ b/app/src/main/java/it/niedermann/nextcloud/deck/ui/filter/FilterDueTypeAdapter.java
@@ -0,0 +1,84 @@
+package it.niedermann.nextcloud.deck.ui.filter;
+
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.recyclerview.widget.RecyclerView;
+
+import java.util.Arrays;
+
+import it.niedermann.nextcloud.deck.databinding.ItemFilterDuetypeBinding;
+import it.niedermann.nextcloud.deck.model.enums.EDueType;
+
+public class FilterDueTypeAdapter extends RecyclerView.Adapter<FilterDueTypeAdapter.DueTypeViewHolder> {
+    @NonNull
+    private final EDueType[] dueTypes = EDueType.values();
+    private int selectedDueTypePosition;
+    @Nullable
+    private final SelectionListener<EDueType> selectionListener;
+
+    @SuppressWarnings("WeakerAccess")
+    public FilterDueTypeAdapter(@NonNull EDueType selectedDueType, @Nullable SelectionListener<EDueType> selectionListener) {
+        super();
+        this.selectedDueTypePosition = Arrays.binarySearch(dueTypes, selectedDueType);
+        this.selectionListener = selectionListener;
+        setHasStableIds(true);
+        notifyDataSetChanged();
+    }
+
+    @NonNull
+    @Override
+    public DueTypeViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
+        return new DueTypeViewHolder(ItemFilterDuetypeBinding.inflate(LayoutInflater.from(parent.getContext()), parent, false));
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull DueTypeViewHolder viewHolder, int position) {
+        viewHolder.bind(dueTypes[position]);
+    }
+
+    @Override
+    public long getItemId(int position) {
+        return position;
+    }
+
+    @Override
+    public int getItemCount() {
+        return dueTypes.length;
+    }
+
+    class DueTypeViewHolder extends RecyclerView.ViewHolder {
+        private ItemFilterDuetypeBinding binding;
+
+        DueTypeViewHolder(@NonNull ItemFilterDuetypeBinding binding) {
+            super(binding.getRoot());
+            this.binding = binding;
+        }
+
+        void bind(final EDueType dueType) {
+            binding.dueType.setText(dueType.toString(binding.dueType.getContext()));
+            itemView.setSelected(dueTypes[selectedDueTypePosition].equals(dueType));
+
+            itemView.setOnClickListener(view -> {
+                final int oldSelection = selectedDueTypePosition;
+                if (dueTypes[selectedDueTypePosition].equals(dueType)) {
+                    selectedDueTypePosition = Arrays.binarySearch(dueTypes, EDueType.NO_FILTER);
+                    itemView.setSelected(false);
+                    if (selectionListener != null) {
+                        selectionListener.onItemSelected(EDueType.NO_FILTER);
+                    }
+                    notifyItemChanged(selectedDueTypePosition);
+                } else {
+                    selectedDueTypePosition = Arrays.binarySearch(dueTypes, dueType);
+                    itemView.setSelected(true);
+                    if (selectionListener != null) {
+                        selectionListener.onItemSelected(dueType);
+                    }
+                }
+                notifyItemChanged(oldSelection);
+            });
+        }
+    }
+}