ClipboardManagerProxy.java

package com.freerdp.freerdpcore.utils;
 
import android.annotation.TargetApi;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.Context;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
 
public abstract class ClipboardManagerProxy
{
 
  public static ClipboardManagerProxy getClipboardManager(Context ctx)
  {
    if (VERSION.SDK_INT < VERSION_CODES.HONEYCOMB)
      return new PreHCClipboardManager(ctx);
    else
      return new HCClipboardManager(ctx);
  }
 
  public abstract void setClipboardData(String data);
 
  public abstract void addClipboardChangedListener(OnClipboardChangedListener listener);
 
  public abstract void removeClipboardboardChangedListener(OnClipboardChangedListener listener);
 
  public abstract void getPrimaryClipManually();
 
  public interface OnClipboardChangedListener
  {
    void onClipboardChanged(String data);
  }
 
  private static class PreHCClipboardManager extends ClipboardManagerProxy
  {
 
    public PreHCClipboardManager(Context ctx)
    {
    }
 
    @Override public void setClipboardData(String data)
    {
    }
 
    @Override public void addClipboardChangedListener(OnClipboardChangedListener listener)
    {
    }
 
    @Override
    public void removeClipboardboardChangedListener(OnClipboardChangedListener listener)
    {
    }
 
    @Override public void getPrimaryClipManually()
    {
    }
  }
 
  @TargetApi(11)
  private static class HCClipboardManager
      extends ClipboardManagerProxy implements ClipboardManager.OnPrimaryClipChangedListener
  {
    private final ClipboardManager mClipboardManager;
    private OnClipboardChangedListener mListener;
 
    public HCClipboardManager(Context ctx)
    {
      mClipboardManager = (ClipboardManager)ctx.getSystemService(Context.CLIPBOARD_SERVICE);
    }
 
    @Override public void setClipboardData(String data)
    {
      mClipboardManager.setPrimaryClip(
          ClipData.newPlainText("rdp-clipboard", data == null ? "" : data));
    }
 
    @Override public void onPrimaryClipChanged()
    {
      ClipData clip = mClipboardManager.getPrimaryClip();
      String data = null;
 
      if (clip != null && clip.getItemCount() > 0)
      {
        CharSequence cs = clip.getItemAt(0).getText();
        if (cs != null)
          data = cs.toString();
      }
      if (mListener != null)
      {
        mListener.onClipboardChanged(data);
      }
    }
 
    @Override public void addClipboardChangedListener(OnClipboardChangedListener listener)
    {
      mListener = listener;
      mClipboardManager.addPrimaryClipChangedListener(this);
    }
 
    @Override
    public void removeClipboardboardChangedListener(OnClipboardChangedListener listener)
    {
      mListener = null;
      mClipboardManager.removePrimaryClipChangedListener(this);
    }
 
    @Override public void getPrimaryClipManually()
    {
      onPrimaryClipChanged();
    }
  }
}