content: /*
   * Copyright 2013 Niek Haarman
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   * http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package com.nhaarman.listviewanimations;
  
  import android.widget.BaseAdapter;
  
  import com.nhaarman.listviewanimations.itemmanipulation.AnimateAdditionAdapter;
  import com.nhaarman.listviewanimations.widget.DynamicListView;
  
  import java.util.ArrayList;
  import java.util.Collection;
  import java.util.Collections;
  import java.util.Iterator;
  import java.util.List;
  import java.util.ListIterator;
  
  /**
   * A {@code true} {@link ArrayList} adapter providing access to all ArrayList methods.
   * Also implements {@link DynamicListView.Swappable} for easy object swapping, and {@link AnimateAdditionAdapter.Insertable} for inserting objects.
   */
  @SuppressWarnings("UnusedDeclaration")
  public abstract class ArrayAdapter<T> extends BaseAdapter implements List<T>, DynamicListView.Swappable, AnimateAdditionAdapter.Insertable<T> {
  
      protected List<T> mItems;
  
      /**
       * Creates a new ArrayAdapter with an empty {@code List} .
       */
      public ArrayAdapter() {
          this(null);
      }
  
      /**
       * Creates a new {@link ArrayAdapter} using given {@code List} , or an empty {@code List}  if objects == null.
       */
      public ArrayAdapter(final List<T> objects) {
          this(objects, false);
      }
  
      /**
       * Creates a new {@link ArrayAdapter}, using (a copy of) given {@code List} , or an empty {@code List}  if objects = null.
       * @param copyList {@code true} to create a copy of the {@code List} , {@code false} to reuse the reference.
       */
      public ArrayAdapter(final List<T> objects, final boolean copyList) {
          if (objects != null) {
              if (copyList) {
                  mItems = new ArrayList<T>(objects);
              } else {
                  mItems = objects;
              }
          } else {
              mItems = new ArrayList<T>();
          }
      }
  
  
      @Override
      public int getCount() {
          return mItems.size();
      }
  
      @Override
      public T getItem(final int location) {
          return mItems.get(location);
      }
  
      @Override
      public long getItemId(final int location) {
          return location;
      }
  
      /**
       * Appends the specified element to the end of the {@code List} .
       * @param object the object to add.
       * @return always true.
       */
      @Override
      public boolean add(final T object) {
          boolean result = mItems.add(object);
          notifyDataSetChanged();
          return result;
      }
  
      @Override
      public void add(final int location, final T object) {
          mItems.add(location, object);
          notifyDataSetChanged();
      }
  
      /**
       * Adds the objects in the specified collection to the end of this List. The objects are added in the order in which they are returned from the collection's iterator.
       * @param collection the collection of objects.
       * @return {@code true} if this {@code List} is modified, {@code false} otherwise.
       */
      @Override
      public boolean addAll(final Collection<? extends T> collection) {
          boolean result = mItems.addAll(collection);
          notifyDataSetChanged();
          return result;
      }
  
      /**
       * Appends all of the elements in the specified collection to the end of the
       * {@code List} , in the order that they are specified.
       * @param objects the array of objects.
       * @return {@code true} if the collection changed during insertion.
       */
      public boolean addAll(final T... objects) {
          boolean result = Collections.addAll(mItems, objects);
          notifyDataSetChanged();
          return result;
      }
  
      @Override
      public boolean addAll(final int location, final Collection<? extends T> objects) {
          boolean result = mItems.addAll(location, objects);
          notifyDataSetChanged();
          return result;
      }
  
      /**
       * Inserts the objects in the specified collection at the specified location in this List. The objects are added in the order that they specified.
       * @param location the index at which to insert.
       * @param objects the array of objects.
       */
      public void addAll(final int location, final T... objects) {
          for (int i = location; i < objects.length + location; i++) {
              mItems.add(i, objects[i]);
          }
          notifyDataSetChanged();
      }
  
      @Override
      public void clear() {
          mItems.clear();
          notifyDataSetChanged();
      }
  
      @Override
      public boolean contains(final Object object) {
          return mItems.contains(object);
      }
  
      @Override
      public boolean containsAll(final Collection<?> collection) {
          return mItems.containsAll(collection);
      }
  
      @Override
      public T get(final int location) {
          return mItems.get(location);
      }
  
      @Override
      public T set(final int location, final T object) {
          T result = mItems.set(location, object);
          notifyDataSetChanged();
          return result;
      }
  
      @Override
      public int size() {
          return mItems.size();
      }
  
      @Override
      public List<T> subList(final int start, final int end) {
          return mItems.subList(start, end);
      }
  
      @Override
      public Object[] toArray() {
          return mItems.toArray();
      }
  
      @Override
      public <T1> T1[] toArray(final T1[] array) {
          //noinspection SuspiciousToArrayCall
          return mItems.toArray(array);
      }
  
      @Override
      public boolean remove(final Object object) {
          boolean result = mItems.remove(object);
          notifyDataSetChanged();
          return result;
      }
  
      @Override
      public T remove(final int location) {
          T result = mItems.remove(location);
          notifyDataSetChanged();
          return result;
      }
  
      /**
       * Removes all elements at the specified locations in the {@code List} .
       * @param locations the collection of indexes to remove.
       * @return a collection containing the removed objects.
       */
      public Collection<T> removePositions(final Collection<Integer> locations) {
          ArrayList<T> removedItems = new ArrayList<T>();
  
          ArrayList<Integer> locationsList = new ArrayList<Integer>(locations);
          Collections.sort(locationsList);
          Collections.reverse(locationsList);
          for (int location : locationsList) {
              removedItems.add(mItems.remove(location));
          }
          notifyDataSetChanged();
          return removedItems;
      }
  
      @Override
      public boolean removeAll(final Collection<?> objects) {
          boolean result = mItems.removeAll(objects);
          notifyDataSetChanged();
          return result;
      }
  
      @Override
      public boolean retainAll(final Collection<?> objects) {
          boolean result = mItems.retainAll(objects);
          notifyDataSetChanged();
          return result;
      }
  
      @Override
      public int indexOf(final Object object) {
          return mItems.indexOf(object);
      }
  
      @Override
      public Iterator<T> iterator() {
          return mItems.iterator();
      }
  
      @Override
      public int lastIndexOf(final Object object) {
          return mItems.lastIndexOf(object);
      }
  
      @Override
      public ListIterator<T> listIterator() {
          return mItems.listIterator();
      }
  
      @Override
      public ListIterator<T> listIterator(final int location) {
          return mItems.listIterator(location);
      }
  
      @Override
      public void swapItems(final int locationOne, final int locationTwo) {
          T temp = getItem(locationOne);
          set(locationOne, getItem(locationTwo));
          set(locationTwo, temp);
      }
  
      private BaseAdapter mDataSetChangedSlavedAdapter;
  
      public void propagateNotifyDataSetChanged(final BaseAdapter slavedAdapter) {
          mDataSetChangedSlavedAdapter = slavedAdapter;
      }
  
      @Override
      public void notifyDataSetChanged() {
          super.notifyDataSetChanged();
          if (mDataSetChangedSlavedAdapter != null) {
              mDataSetChangedSlavedAdapter.notifyDataSetChanged();
          }
      }
  }
  