Android Open Source - bitfynd-wallet-android Sending 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.
 */*from  w  ww .  j ava  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.ArrayList;

import javax.annotation.Nonnull;

import org.bitcoinj.core.Address;
import org.bitcoinj.core.AddressFormatException;
import org.bitcoinj.core.Transaction;
import org.bitcoinj.core.VerificationException;
import org.bitcoinj.uri.BitcoinURI;
import org.bitcoinj.uri.BitcoinURIParseException;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import android.app.Activity;
import android.app.LoaderManager;
import android.content.ClipData;
import android.content.ClipDescription;
import android.content.ClipboardManager;
import android.content.ClipboardManager.OnPrimaryClipChangedListener;
import android.content.Context;
import android.content.CursorLoader;
import android.content.Intent;
import android.content.Loader;
import android.content.pm.PackageManager;
import android.database.Cursor;
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.ListView;
import android.widget.SimpleCursorAdapter;
import android.widget.SimpleCursorAdapter.ViewBinder;
import android.widget.TextView;
import de.schildbach.wallet.AddressBookProvider;
import de.schildbach.wallet.BuildConfig;
import de.schildbach.wallet.Constants;
import de.schildbach.wallet.data.PaymentIntent;
import de.schildbach.wallet.ui.InputParser.StringInputParser;
import de.schildbach.wallet.ui.send.SendCoinsActivity;
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 SendingAddressesFragment extends FancyListFragment implements LoaderManager.LoaderCallbacks<Cursor>, OnPrimaryClipChangedListener
{
  private AbstractWalletActivity activity;
  private ClipboardManager clipboardManager;
  private LoaderManager loaderManager;

  private SimpleCursorAdapter adapter;
  private String walletAddressesSelection;
  private MenuItem pasteMenuItem;

  private final Handler handler = new Handler();

  private static final int REQUEST_CODE_SCAN = 0;

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

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

    this.activity = (AbstractWalletActivity) activity;
    this.clipboardManager = (ClipboardManager) activity.getSystemService(Context.CLIPBOARD_SERVICE);
    this.loaderManager = getLoaderManager();
  }

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

    setHasOptionsMenu(true);

    adapter = new SimpleCursorAdapter(activity, R.layout.address_book_row, null, new String[] { AddressBookProvider.KEY_LABEL,
        AddressBookProvider.KEY_ADDRESS }, new int[] { R.id.address_book_row_label, R.id.address_book_row_address }, 0);
    adapter.setViewBinder(new ViewBinder()
    {
      @Override
      public boolean setViewValue(final View view, final Cursor cursor, final int columnIndex)
      {
        if (!AddressBookProvider.KEY_ADDRESS.equals(cursor.getColumnName(columnIndex)))
          return false;

        ((TextView) view).setText(WalletUtils.formatHash(cursor.getString(columnIndex), Constants.ADDRESS_FORMAT_GROUP_SIZE,
            Constants.ADDRESS_FORMAT_LINE_SIZE));

        return true;
      }
    });
    setListAdapter(adapter);

    loaderManager.initLoader(0, null, this);
  }

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

    clipboardManager.addPrimaryClipChangedListener(this);
  }

  @Override
  public void onPause()
  {
    clipboardManager.removePrimaryClipChangedListener(this);

    super.onPause();
  }

  @Override
  public void onDestroy()
  {
    loaderManager.destroyLoader(0);

    super.onDestroy();
  }

  @Override
  public void onActivityResult(final int requestCode, final int resultCode, final Intent intent)
  {
    if (requestCode == REQUEST_CODE_SCAN && resultCode == Activity.RESULT_OK)
    {
      final String input = intent.getStringExtra(ScanActivity.INTENT_EXTRA_RESULT);

      new StringInputParser(input)
      {
        @Override
        protected void handlePaymentIntent(final PaymentIntent paymentIntent)
        {
          // workaround for "IllegalStateException: Can not perform this action after onSaveInstanceState"
          handler.postDelayed(new Runnable()
          {
            @Override
            public void run()
            {
              if (paymentIntent.hasAddress())
                EditAddressBookEntryFragment.edit(getFragmentManager(), paymentIntent.getAddress().toString());
              else
                dialog(activity, null, R.string.address_book_options_scan_title, R.string.address_book_options_scan_invalid);
            }
          }, 500);
        }

        @Override
        protected void handleDirectTransaction(final Transaction transaction) throws VerificationException
        {
          cannotClassify(input);
        }

        @Override
        protected void error(final int messageResId, final Object... messageArgs)
        {
          dialog(activity, null, R.string.address_book_options_scan_title, messageResId, messageArgs);
        }
      }.parse();
    }
  }

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

    final PackageManager pm = activity.getPackageManager();
    menu.findItem(R.id.sending_addresses_options_scan).setVisible(
        pm.hasSystemFeature(PackageManager.FEATURE_CAMERA) || pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT));

    super.onCreateOptionsMenu(menu, inflater);
  }

  @Override
  public void onPrepareOptionsMenu(final Menu menu)
  {
    menu.findItem(R.id.sending_addresses_options_paste).setEnabled(getAddressFromPrimaryClip() != null);

    super.onPrepareOptionsMenu(menu);
  }

  @Override
  public boolean onOptionsItemSelected(final MenuItem item)
  {
    switch (item.getItemId())
    {
      case R.id.sending_addresses_options_paste:
        handlePasteClipboard();
        return true;

      case R.id.sending_addresses_options_scan:
        handleScan();
        return true;
    }

    return super.onOptionsItemSelected(item);
  }

  private void handlePasteClipboard()
  {
    final Address address = getAddressFromPrimaryClip();
    if (address != null)
    {
      EditAddressBookEntryFragment.edit(getFragmentManager(), address.toString());
    }
    else
    {
      // should currently not be reached since menu item is disabled
      final DialogBuilder dialog = new DialogBuilder(activity);
      dialog.setTitle(R.string.address_book_options_paste_from_clipboard_title);
      dialog.setMessage(R.string.address_book_options_paste_from_clipboard_invalid);
      dialog.singleDismissButton(null);
      dialog.show();
    }
  }

  private void handleScan()
  {
    startActivityForResult(new Intent(activity, ScanActivity.class), REQUEST_CODE_SCAN);
  }

  @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.sending_addresses_context, menu);

        return true;
      }

      @Override
      public boolean onPrepareActionMode(final ActionMode mode, final Menu menu)
      {
        final String label = getLabel(position);
        mode.setTitle(label);

        return true;
      }

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

            mode.finish();
            return true;

          case R.id.sending_addresses_context_edit:
            EditAddressBookEntryFragment.edit(getFragmentManager(), getAddress(position));

            mode.finish();
            return true;

          case R.id.sending_addresses_context_remove:
            handleRemove(getAddress(position));

            mode.finish();
            return true;

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

            mode.finish();
            return true;

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

            mode.finish();
            return true;
        }

        return false;
      }

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

      private String getAddress(final int position)
      {
        final Cursor cursor = (Cursor) adapter.getItem(position);
        return cursor.getString(cursor.getColumnIndexOrThrow(AddressBookProvider.KEY_ADDRESS));
      }

      private String getLabel(final int position)
      {
        final Cursor cursor = (Cursor) adapter.getItem(position);
        return cursor.getString(cursor.getColumnIndexOrThrow(AddressBookProvider.KEY_LABEL));
      }
    });
  }

  private void handleSend(final String address)
  {
    try
    {
      SendCoinsActivity.start(activity, PaymentIntent.fromAddress(address, null));
    }
    catch (final AddressFormatException x)
    {
      // cannot happen, address was picked from address book
      throw new RuntimeException(x);
    }
  }

  private void handleRemove(final String address)
  {
    final Uri uri = AddressBookProvider.contentUri(BuildConfig.APPLICATION_ID).buildUpon().appendPath(address).build();
    activity.getContentResolver().delete(uri, null, null);
  }

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

  @Override
  public Loader<Cursor> onCreateLoader(final int id, final Bundle args)
  {
    final Uri uri = AddressBookProvider.contentUri(BuildConfig.APPLICATION_ID);
    return new CursorLoader(activity, uri, null, AddressBookProvider.SELECTION_NOTIN,
        new String[] { walletAddressesSelection != null ? walletAddressesSelection : "" }, AddressBookProvider.KEY_LABEL
            + " COLLATE LOCALIZED ASC");
  }

  @Override
  public void onLoadFinished(final Loader<Cursor> loader, final Cursor data)
  {
    adapter.swapCursor(data);

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

  @Override
  public void onLoaderReset(final Loader<Cursor> loader)
  {
    adapter.swapCursor(null);
  }

  public void setWalletAddresses(@Nonnull final ArrayList<Address> addresses)
  {
    final StringBuilder builder = new StringBuilder();
    for (final Address address : addresses)
      builder.append(address.toString()).append(",");
    if (addresses.size() > 0)
      builder.setLength(builder.length() - 1);

    walletAddressesSelection = builder.toString();
  }

  private Address getAddressFromPrimaryClip()
  {
    if (!clipboardManager.hasPrimaryClip())
      return null;

    final ClipData clip = clipboardManager.getPrimaryClip();
    final ClipDescription clipDescription = clip.getDescription();

    if (clipDescription.hasMimeType(ClipDescription.MIMETYPE_TEXT_PLAIN))
    {
      final CharSequence clipText = clip.getItemAt(0).getText();
      if (clipText == null)
        return null;

      try
      {
        return new Address(Constants.NETWORK_PARAMETERS, clipText.toString().trim());
      }
      catch (final AddressFormatException x)
      {
        return null;
      }
    }
    else if (clipDescription.hasMimeType(ClipDescription.MIMETYPE_TEXT_URILIST))
    {
      final Uri clipUri = clip.getItemAt(0).getUri();
      if (clipUri == null)
        return null;
      try
      {
        return new BitcoinURI(clipUri.toString()).getAddress();
      }
      catch (final BitcoinURIParseException x)
      {
        return null;
      }
    }
    else
    {
      return null;
    }
  }

  @Override
  public void onPrimaryClipChanged()
  {
    activity.invalidateOptionsMenu();
  }
}
Java Source Code List
