content: /*
   * Licensed to the Apache Software Foundation (ASF) under one
   * or more contributor license agreements.  See the NOTICE file
   * distributed with this work for additional information
   * regarding copyright ownership.  The ASF licenses this file
   * to you 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 org.apache.weex.ui.component.list;
  
  import android.support.annotation.NonNull;
  import android.support.v7.widget.RecyclerView;
  
  import org.apache.weex.ui.component.WXComponent;
  
  /**
   * Description:
   *
   * interface for drag&drop support
   *
   */
  interface DragHelper {
  
      void onDragStart(@NonNull WXComponent component, int from);
  
      void onDragEnd(@NonNull WXComponent component, int from, int to);
  
      void onDragging(int fromPos, int toPos);
  
      boolean isLongPressDragEnabled();
  
      void setLongPressDragEnabled(boolean enabled);
  
      void startDrag(@NonNull RecyclerView.ViewHolder viewHolder);
  
      boolean isDraggable();
  
      void setDraggable(boolean draggable);
  
      void setDragExcluded(@NonNull RecyclerView.ViewHolder viewHolder, boolean isExcluded);
  
      boolean isDragExcluded(@NonNull RecyclerView.ViewHolder viewHolder);
  }
  