ClipboardImageProvider.java

/*
   Android Clipboard Image ContentProvider
 
   Copyright 2026 Ibrahim Sevinc <ibrahim.sevinc.mail@gmail.com>
 
   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
   If a copy of the MPL was not distributed with this file, You can obtain one at
   http://mozilla.org/MPL/2.0/.
 */
 
package com.freerdp.freerdpcore.utils;
 
import android.content.ContentProvider;
import android.content.ContentValues;
import android.database.Cursor;
import android.net.Uri;
import android.os.ParcelFileDescriptor;
 
import java.io.IOException;
import java.io.OutputStream;
 
public class ClipboardImageProvider extends ContentProvider
{
  public static final String AUTHORITY = "com.freerdp.freerdpcore.clipboard";
  public static final Uri CONTENT_URI = Uri.parse("content://" + AUTHORITY + "/image");
 
  private static volatile byte[] sImageData;
 
  public static void setImageData(byte[] data)
  {
    sImageData = data;
  }
 
  @Override public boolean onCreate()
  {
    return true;
  }
 
  @Override public ParcelFileDescriptor openFile(Uri uri, String mode)
  {
    byte[] data = sImageData;
    if (data == null)
      return null;
 
    try
    {
      ParcelFileDescriptor[] pipe = ParcelFileDescriptor.createPipe();
      final ParcelFileDescriptor writeEnd = pipe[1];
      Thread t = new Thread(() -> {
        try (OutputStream out = new ParcelFileDescriptor.AutoCloseOutputStream(writeEnd))
        {
          out.write(data);
        }
        catch (IOException e)
        {
          // pipe closed by reader
        }
      });
      t.setDaemon(true);
      t.start();
      return pipe[0];
    }
    catch (IOException e)
    {
      return null;
    }
  }
 
  @Override public String getType(Uri uri)
  {
    return "image/png";
  }
 
  @Override
  public Cursor query(Uri uri, String[] projection, String selection, String[] selectionArgs,
                      String sortOrder)
  {
    return null;
  }
 
  @Override public Uri insert(Uri uri, ContentValues values)
  {
    return null;
  }
 
  @Override public int delete(Uri uri, String selection, String[] selectionArgs)
  {
    return 0;
  }
 
  @Override
  public int update(Uri uri, ContentValues values, String selection, String[] selectionArgs)
  {
    return 0;
  }
}