Android Open Source - bitfynd-wallet-android Wallet Addresses Fragment

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License

The source code is released under:
GNU General Public License
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Java Source Code

/*
 * Copyright 2011-2014 the original author or authors.
 */* www .jav  a  2s  .c  o m*/
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */

package de.schildbach.wallet.ui;

import java.util.Collections;
import java.util.Comparator;
import java.util.List;

import javax.annotation.Nonnull;

import org.bitcoinj.core.AbstractWalletEventListener;
import org.bitcoinj.core.Address;
import org.bitcoinj.core.ECKey;
import org.bitcoinj.core.Wallet;
import org.bitcoinj.core.WalletEventListener;
import org.bitcoinj.uri.BitcoinURI;
import org.bitcoinj.utils.Threading;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import android.app.Activity;
import android.content.ClipData;
import android.content.ClipboardManager;
import android.content.ContentResolver;
import android.content.Context;
import android.content.Intent;
import android.database.ContentObserver;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.v7.view.ActionMode;
import android.view.Menu;
import android.view.MenuInflater;
import android.view.MenuItem;
import android.view.View;
import android.widget.BaseAdapter;
import android.widget.ListAdapter;
import android.widget.ListView;
import de.schildbach.wallet.AddressBookProvider;
import de.schildbach.wallet.BuildConfig;
import de.schildbach.wallet.Constants;
import de.schildbach.wallet.WalletApplication;
import de.schildbach.wallet.util.BitmapFragment;
import de.schildbach.wallet.util.Qr;
import de.schildbach.wallet.util.WalletUtils;
import de.schildbach.wallet.util.WholeStringBuilder;
import de.schildbach.wallet.R;

/**
 * @author Andreas Schildbach
 */
public final class WalletAddressesFragment extends FancyListFragment
{
  private AddressBookActivity activity;
  private WalletApplication application;
  private Wallet wallet;
  private ClipboardManager clipboardManager;
  private ContentResolver contentResolver;

  private WalletAddressesAdapter adapter;

  private static final Logger log = LoggerFactory.getLogger(WalletAddressesFragment.class);

  @Override
  public void onAttach(final Activity activity)
  {
    super.onAttach(activity);

    this.activity = (AddressBookActivity) activity;
    this.application = (WalletApplication) activity.getApplication();
    this.wallet = application.getWallet();
    this.clipboardManager = (ClipboardManager) activity.getSystemService(Context.CLIPBOARD_SERVICE);
    this.contentResolver = activity.getContentResolver();
  }

  @Override
  public void onCreate(final Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);

    setHasOptionsMenu(true);

    adapter = new WalletAddressesAdapter(activity, wallet);

    setListAdapter(adapter);
  }

  @Override
  public void onViewCreated(final View view, final Bundle savedInstanceState)
  {
    super.onViewCreated(view, savedInstanceState);

    setEmptyText(WholeStringBuilder.bold(getString(R.string.address_book_empty_text)));
  }

  @Override
  public void onResume()
  {
    super.onResume();

    contentResolver.registerContentObserver(AddressBookProvider.contentUri(BuildConfig.APPLICATION_ID), true, contentObserver);

    wallet.addEventListener(walletListener, Threading.SAME_THREAD);
    walletListener.onKeysAdded(null); // trigger initial load of keys

    updateView();
  }

  @Override
  public void onPause()
  {
    wallet.removeEventListener(walletListener);

    contentResolver.unregisterContentObserver(contentObserver);

    super.onPause();
  }

  @Override
  public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater)
  {
    inflater.inflate(R.menu.wallet_addresses_fragment_options, menu);

    super.onCreateOptionsMenu(menu, inflater);
  }

  @Override
  public void onListItemClick(final ListView l, final View v, final int position, final long id)
  {
    activity.startSupportActionMode(new ActionMode.Callback()
    {
      @Override
      public boolean onCreateActionMode(final ActionMode mode, final Menu menu)
      {
        final MenuInflater inflater = mode.getMenuInflater();
        inflater.inflate(R.menu.wallet_addresses_context, menu);

        return true;
      }

      @Override
      public boolean onPrepareActionMode(final ActionMode mode, final Menu menu)
      {
        final ECKey key = getKey(position);

        final String address = key.toAddress(Constants.NETWORK_PARAMETERS).toString();
        final String label = AddressBookProvider.resolveLabel(activity, address);
        mode.setTitle(label != null ? label : WalletUtils.formatHash(address, Constants.ADDRESS_FORMAT_GROUP_SIZE, 0));

        return true;
      }

      @Override
      public boolean onActionItemClicked(final ActionMode mode, final MenuItem item)
      {
        switch (item.getItemId())
        {
          case R.id.wallet_addresses_context_edit:
            handleEdit(getAddress(position));

            mode.finish();
            return true;

          case R.id.wallet_addresses_context_show_qr:
            handleShowQr(getAddress(position));

            mode.finish();
            return true;

          case R.id.wallet_addresses_context_copy_to_clipboard:
            handleCopyToClipboard(getAddress(position));

            mode.finish();
            return true;

          case R.id.wallet_addresses_context_browse:
            startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(Constants.EXPLORE_BASE_URL + "address/"
                + getAddress(position).toString())));

            mode.finish();
            return true;
        }

        return false;
      }

      @Override
      public void onDestroyActionMode(final ActionMode mode)
      {
      }

      private ECKey getKey(final int position)
      {
        return (ECKey) getListAdapter().getItem(position);
      }

      private Address getAddress(final int position)
      {
        return getKey(position).toAddress(Constants.NETWORK_PARAMETERS);
      }

      private void handleEdit(@Nonnull final Address address)
      {
        EditAddressBookEntryFragment.edit(getFragmentManager(), address.toString());
      }

      private void handleShowQr(@Nonnull final Address address)
      {
        final String uri = BitcoinURI.convertToBitcoinURI(address, null, null, null);
                final int size = getResources().getDimensionPixelSize(R.dimen.bitmap_dialog_qr_size);
        BitmapFragment.show(getFragmentManager(), Qr.bitmap(uri, size));
      }

      private void handleCopyToClipboard(@Nonnull final Address address)
      {
        clipboardManager.setPrimaryClip(ClipData.newPlainText("Bitcoin address", address.toString()));
        log.info("address copied to clipboard: {}", address.toString());
        activity.toast(R.string.wallet_address_fragment_clipboard_msg);
      }
    });
  }

  private void updateView()
  {
    final ListAdapter adapter = getListAdapter();
    if (adapter != null)
      ((BaseAdapter) adapter).notifyDataSetChanged();
  }

  private final Handler handler = new Handler();

  private final ContentObserver contentObserver = new ContentObserver(handler)
  {
    @Override
    public void onChange(final boolean selfChange)
    {
      updateView();
    }
  };

  private final WalletEventListener walletListener = new AbstractWalletEventListener()
  {
    @Override
    public void onKeysAdded(final List<ECKey> keysAdded)
    {
      final List<ECKey> keys = wallet.getImportedKeys();

      Collections.sort(keys, new Comparator<ECKey>()
      {
        @Override
        public int compare(final ECKey lhs, final ECKey rhs)
        {
          final boolean lhsRotating = wallet.isKeyRotating(lhs);
          final boolean rhsRotating = wallet.isKeyRotating(rhs);

          if (lhsRotating != rhsRotating)
            return lhsRotating ? 1 : -1;

          if (lhs.getCreationTimeSeconds() != rhs.getCreationTimeSeconds())
            return lhs.getCreationTimeSeconds() > rhs.getCreationTimeSeconds() ? 1 : -1;

          return 0;
        }
      });

      handler.post(new Runnable()
      {
        @Override
        public void run()
        {
          adapter.replace(keys);
        }
      });
    }
  };
}
Java Source Code List
