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.view.listview.adapter;
  
  import android.support.v7.widget.RecyclerView;
  import android.view.View;
  
  import org.apache.weex.ui.component.WXComponent;
  import org.apache.weex.ui.component.WXHeader;
  
  import java.lang.ref.WeakReference;
  
  
  /**
   * There are bi-directional association between ViewHolder and View.
   * This is accomplished by weak-reference and final field from ViewHolder to View.
   * From View to ViewHolder, this is done by set {@link android.view.ViewGroup.LayoutParams} to View.
   */
  public class ListBaseViewHolder extends RecyclerView.ViewHolder {
    private int mViewType;
    private boolean isRecycled;
    private WeakReference<WXComponent> mComponent;
  
    public ListBaseViewHolder(WXComponent component, int viewType) {
      super(component.getHostView());
      mViewType = viewType;
      mComponent = new WeakReference(component);
      // This tag is used to determine whether bind / rebind data is needed.
      // It should be false When component can not be recycled Which means
      // no need to bind / rebind data.
      isRecycled = component.canRecycled();
    }
  
    public ListBaseViewHolder(WXComponent component, int viewType, boolean forceBindData) {
      this(component, viewType);
      isRecycled = isRecycled || forceBindData;
    }
  
    public ListBaseViewHolder(View view, int viewType) {
      super(view);
      mViewType = viewType;
    }
  
    public boolean isRecycled() {
      return isRecycled;
    }
  
    public void recycled() {
      if (mComponent != null && mComponent.get() != null) {
        mComponent.get().recycled();
        isRecycled = true;
  
      }
    }
  
    public void bindData(WXComponent component) {
      if (mComponent != null && mComponent.get() != null) {
        mComponent.get().bindData(component);
        isRecycled = false;
      }
    }
      
    public boolean isFullSpan() {
      return mComponent != null && mComponent.get() instanceof WXHeader;
    }
  
    public boolean canRecycled() {
      if (mComponent != null && mComponent.get() != null) {
        return mComponent.get().canRecycled();
      }
      return true;
    }
  
    public View getView() {
      return itemView;
    }
  
    public int getViewType() {
      return mViewType;
    }
  
    public void setComponentUsing(boolean using) {
      if (mComponent != null && mComponent.get() != null)
        mComponent.get().setUsing(using);
    }
  
    public WXComponent getComponent() {
      return mComponent != null ? mComponent.get() : null;
    }
  }
  