Java tutorial
/* * Copyright 2011-2014 the original author or authors. * * 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 com.hamradiocoin.wallet.ui.send; import java.io.FileNotFoundException; import java.io.InputStream; import java.math.BigInteger; import javax.annotation.CheckForNull; import javax.annotation.Nonnull; import javax.annotation.Nullable; import org.bitcoin.protocols.payments.Protos.Payment; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import android.app.Activity; import android.bluetooth.BluetoothAdapter; import android.content.ComponentName; import android.content.ContentResolver; import android.content.Context; import android.content.DialogInterface; import android.content.Intent; import android.content.pm.PackageManager; import android.database.ContentObserver; import android.database.Cursor; import android.media.RingtoneManager; import android.net.Uri; import android.nfc.NdefMessage; import android.nfc.NfcAdapter; import android.os.Bundle; import android.os.Handler; import android.os.HandlerThread; import android.os.Process; import android.support.v4.app.FragmentManager; import android.support.v4.app.LoaderManager; import android.support.v4.app.LoaderManager.LoaderCallbacks; import android.support.v4.content.Loader; import android.text.Editable; import android.text.TextWatcher; import android.view.LayoutInflater; import android.view.View; import android.view.View.MeasureSpec; import android.view.View.OnClickListener; import android.view.View.OnFocusChangeListener; import android.view.ViewGroup; import android.widget.AutoCompleteTextView; import android.widget.Button; import android.widget.CheckBox; import android.widget.CompoundButton; import android.widget.CompoundButton.OnCheckedChangeListener; import android.widget.CursorAdapter; import android.widget.ListView; import android.widget.PopupWindow; import android.widget.TextView; import com.actionbarsherlock.app.SherlockFragment; import com.actionbarsherlock.view.ActionMode; import com.actionbarsherlock.view.Menu; import com.actionbarsherlock.view.MenuInflater; import com.actionbarsherlock.view.MenuItem; import com.google.bitcoin.core.Address; import com.google.bitcoin.core.AddressFormatException; import com.google.bitcoin.core.ECKey; import com.google.bitcoin.core.NetworkParameters; import com.google.bitcoin.core.Sha256Hash; import com.google.bitcoin.core.Transaction; import com.google.bitcoin.core.TransactionConfidence; import com.google.bitcoin.core.TransactionConfidence.ConfidenceType; import com.google.bitcoin.core.VerificationException; import com.google.bitcoin.core.Wallet; import com.google.bitcoin.core.Wallet.BalanceType; import com.google.bitcoin.core.Wallet.SendRequest; import com.google.bitcoin.core.CoinDefinition; import com.hamradiocoin.wallet.Configuration; import com.hamradiocoin.wallet.ExchangeRatesProvider; import com.hamradiocoin.wallet.WalletApplication; import com.hamradiocoin.wallet.data.PaymentIntent; import com.hamradiocoin.wallet.ui.AbstractBindServiceActivity; import com.hamradiocoin.wallet.ui.CurrencyAmountView; import com.hamradiocoin.wallet.ui.CurrencyCalculatorLink; import com.hamradiocoin.wallet.ui.DialogBuilder; import com.hamradiocoin.wallet.ui.EditAddressBookEntryFragment; import com.hamradiocoin.wallet.ui.ExchangeRateLoader; import com.hamradiocoin.wallet.ui.InputParser; import com.hamradiocoin.wallet.ui.ProgressDialogFragment; import com.hamradiocoin.wallet.ui.ScanActivity; import com.hamradiocoin.wallet.util.Bluetooth; import com.hamradiocoin.wallet.util.GenericUtils; import com.hamradiocoin.wallet.util.PaymentProtocol; import com.hamradiocoin.wallet.AddressBookProvider; import com.hamradiocoin.wallet.Constants; import de.schildbach.wallet.integration.android.BitcoinIntegration; import com.hamradiocoin.wallet.offline.DirectPaymentTask; import com.hamradiocoin.wallet.ui.AddressAndLabel; import com.hamradiocoin.wallet.ui.TransactionsListAdapter; import com.hamradiocoin.wallet.util.Nfc; import com.hamradiocoin.wallet.util.WalletUtils; import com.hamradiocoin.wallet.R; /** * @author Andreas Schildbach */ public final class SendCoinsFragment extends SherlockFragment { private AbstractBindServiceActivity activity; private WalletApplication application; private Configuration config; private Wallet wallet; private ContentResolver contentResolver; private LoaderManager loaderManager; private FragmentManager fragmentManager; @CheckForNull private BluetoothAdapter bluetoothAdapter; private final Handler handler = new Handler(); private HandlerThread backgroundThread; private Handler backgroundHandler; private TextView payeeNameView; private TextView payeeOrganizationView; private TextView payeeVerifiedByView; private AutoCompleteTextView receivingAddressView; private View receivingStaticView; private TextView receivingStaticAddressView; private TextView receivingStaticLabelView; private CheckBox directPaymentEnableView; private TextView txFeeView; private TextView directPaymentMessageView; private ListView sentTransactionView; private TransactionsListAdapter sentTransactionListAdapter; private Button viewGo; private Button viewCancel; private TextView popupMessageView; private PopupWindow popupWindow; private CurrencyCalculatorLink amountCalculatorLink; private MenuItem scanAction; private MenuItem emptyAction; private PaymentIntent paymentIntent; private AddressAndLabel validatedAddress = null; private Boolean directPaymentAck = null; private State state = State.INPUT; private Transaction sentTransaction = null; private static final int ID_RATE_LOADER = 0; private static final int REQUEST_CODE_SCAN = 0; private static final int REQUEST_CODE_ENABLE_BLUETOOTH_FOR_PAYMENT_REQUEST = 1; private static final int REQUEST_CODE_ENABLE_BLUETOOTH_FOR_DIRECT_PAYMENT = 2; private static final Logger log = LoggerFactory.getLogger(SendCoinsFragment.class); private enum State { INPUT, PREPARATION, SENDING, SENT, FAILED } private final class ReceivingAddressListener implements OnFocusChangeListener, TextWatcher { @Override public void onFocusChange(final View v, final boolean hasFocus) { if (!hasFocus) validateReceivingAddress(true); } @Override public void afterTextChanged(final Editable s) { dismissPopup(); validateReceivingAddress(false); } @Override public void beforeTextChanged(final CharSequence s, final int start, final int count, final int after) { } @Override public void onTextChanged(final CharSequence s, final int start, final int before, final int count) { } } private final ReceivingAddressListener receivingAddressListener = new ReceivingAddressListener(); private final class ReceivingAddressActionMode implements ActionMode.Callback { private final Address address; public ReceivingAddressActionMode(final Address address) { this.address = address; } @Override public boolean onCreateActionMode(final ActionMode mode, final Menu menu) { final MenuInflater inflater = mode.getMenuInflater(); inflater.inflate(R.menu.send_coins_address_context, menu); return true; } @Override public boolean onPrepareActionMode(final ActionMode mode, final Menu menu) { menu.findItem(R.id.send_coins_address_context_clear).setVisible(paymentIntent.mayEditAddress()); return true; } @Override public boolean onActionItemClicked(final ActionMode mode, final MenuItem item) { switch (item.getItemId()) { case R.id.send_coins_address_context_edit_address: handleEditAddress(); mode.finish(); return true; case R.id.send_coins_address_context_clear: handleClear(); mode.finish(); return true; } return false; } @Override public void onDestroyActionMode(final ActionMode mode) { if (receivingStaticView.hasFocus()) requestFocusFirst(); } private void handleEditAddress() { EditAddressBookEntryFragment.edit(fragmentManager, address.toString()); } private void handleClear() { // switch from static to input validatedAddress = null; receivingAddressView.setText(null); receivingStaticAddressView.setText(null); updateView(); requestFocusFirst(); } } private final CurrencyAmountView.Listener amountsListener = new CurrencyAmountView.Listener() { @Override public void changed() { updateView(); } @Override public void focusChanged(final boolean hasFocus) { } }; private final ContentObserver contentObserver = new ContentObserver(handler) { @Override public void onChange(final boolean selfChange) { updateView(); } }; private final TransactionConfidence.Listener sentTransactionConfidenceListener = new TransactionConfidence.Listener() { @Override public void onConfidenceChanged(final Transaction tx, final TransactionConfidence.Listener.ChangeReason reason) { activity.runOnUiThread(new Runnable() { @Override public void run() { sentTransactionListAdapter.notifyDataSetChanged(); final TransactionConfidence confidence = sentTransaction.getConfidence(); final ConfidenceType confidenceType = confidence.getConfidenceType(); final int numBroadcastPeers = confidence.numBroadcastPeers(); if (state == State.SENDING) { if (confidenceType == ConfidenceType.DEAD) state = State.FAILED; else if (numBroadcastPeers > 1 || confidenceType == ConfidenceType.BUILDING) state = State.SENT; updateView(); } if (reason == ChangeReason.SEEN_PEERS && confidenceType == ConfidenceType.PENDING) { // play sound effect final int soundResId = getResources().getIdentifier( "send_coins_broadcast_" + numBroadcastPeers, "raw", activity.getPackageName()); if (soundResId > 0) RingtoneManager .getRingtone(activity, Uri.parse( "android.resource://" + activity.getPackageName() + "/" + soundResId)) .play(); } } }); } }; private final LoaderCallbacks<Cursor> rateLoaderCallbacks = new LoaderManager.LoaderCallbacks<Cursor>() { @Override public Loader<Cursor> onCreateLoader(final int id, final Bundle args) { return new ExchangeRateLoader(activity, config); } @Override public void onLoadFinished(final Loader<Cursor> loader, final Cursor data) { if (data != null && data.getCount() > 0) { data.moveToFirst(); final ExchangeRatesProvider.ExchangeRate exchangeRate = ExchangeRatesProvider.getExchangeRate(data); if (state == State.INPUT) amountCalculatorLink.setExchangeRate(exchangeRate); } } @Override public void onLoaderReset(final Loader<Cursor> loader) { } }; private final DialogInterface.OnClickListener activityDismissListener = new DialogInterface.OnClickListener() { @Override public void onClick(final DialogInterface dialog, final int which) { activity.finish(); } }; @Override public void onAttach(final Activity activity) { super.onAttach(activity); this.activity = (AbstractBindServiceActivity) activity; this.application = (WalletApplication) activity.getApplication(); this.config = application.getConfiguration(); this.wallet = application.getWallet(); this.contentResolver = activity.getContentResolver(); this.loaderManager = getLoaderManager(); this.fragmentManager = getFragmentManager(); } @Override public void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); setRetainInstance(true); setHasOptionsMenu(true); bluetoothAdapter = BluetoothAdapter.getDefaultAdapter(); backgroundThread = new HandlerThread("backgroundThread", Process.THREAD_PRIORITY_BACKGROUND); backgroundThread.start(); backgroundHandler = new Handler(backgroundThread.getLooper()); if (savedInstanceState != null) { restoreInstanceState(savedInstanceState); } else { final Intent intent = activity.getIntent(); final String action = intent.getAction(); final Uri intentUri = intent.getData(); final String scheme = intentUri != null ? intentUri.getScheme() : null; final String mimeType = intent.getType(); if ((Intent.ACTION_VIEW.equals(action) || NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) && intentUri != null && CoinDefinition.coinURIScheme.equals(scheme)) { initStateFromBitcoinUri(intentUri); } else if ((NfcAdapter.ACTION_NDEF_DISCOVERED.equals(action)) && PaymentProtocol.MIMETYPE_PAYMENTREQUEST.equals(mimeType)) { final NdefMessage ndefMessage = (NdefMessage) intent .getParcelableArrayExtra(NfcAdapter.EXTRA_NDEF_MESSAGES)[0]; final byte[] ndefMessagePayload = Nfc.extractMimePayload(PaymentProtocol.MIMETYPE_PAYMENTREQUEST, ndefMessage); initStateFromPaymentRequest(mimeType, ndefMessagePayload); } else if ((Intent.ACTION_VIEW.equals(action)) && PaymentProtocol.MIMETYPE_PAYMENTREQUEST.equals(mimeType)) { final byte[] paymentRequest = BitcoinIntegration.paymentRequestFromIntent(intent); if (intentUri != null) initStateFromIntentUri(mimeType, intentUri); else if (paymentRequest != null) initStateFromPaymentRequest(mimeType, paymentRequest); else throw new IllegalArgumentException(); } else if (intent.hasExtra(SendCoinsActivity.INTENT_EXTRA_PAYMENT_INTENT)) { initStateFromIntentExtras(intent.getExtras()); } else { updateStateFrom(PaymentIntent.blank()); } } } @Override public View onCreateView(final LayoutInflater inflater, final ViewGroup container, final Bundle savedInstanceState) { final View view = inflater.inflate(R.layout.send_coins_fragment, container); payeeNameView = (TextView) view.findViewById(R.id.send_coins_payee_name); payeeOrganizationView = (TextView) view.findViewById(R.id.send_coins_payee_organization); payeeVerifiedByView = (TextView) view.findViewById(R.id.send_coins_payee_verified_by); receivingAddressView = (AutoCompleteTextView) view.findViewById(R.id.send_coins_receiving_address); receivingAddressView.setAdapter(new AutoCompleteAddressAdapter(activity, null)); receivingAddressView.setOnFocusChangeListener(receivingAddressListener); receivingAddressView.addTextChangedListener(receivingAddressListener); receivingStaticView = view.findViewById(R.id.send_coins_receiving_static); receivingStaticAddressView = (TextView) view.findViewById(R.id.send_coins_receiving_static_address); receivingStaticLabelView = (TextView) view.findViewById(R.id.send_coins_receiving_static_label); receivingStaticView.setOnFocusChangeListener(new OnFocusChangeListener() { private ActionMode actionMode; @Override public void onFocusChange(final View v, final boolean hasFocus) { if (hasFocus) { final Address address = paymentIntent.hasAddress() ? paymentIntent.getAddress() : (validatedAddress != null ? validatedAddress.address : null); if (address != null) actionMode = activity.startActionMode(new ReceivingAddressActionMode(address)); } else { actionMode.finish(); } } }); final CurrencyAmountView btcAmountView = (CurrencyAmountView) view.findViewById(R.id.send_coins_amount_btc); btcAmountView.setCurrencySymbol(config.getBtcPrefix()); btcAmountView.setInputPrecision(config.getBtcMaxPrecision()); btcAmountView.setHintPrecision(config.getBtcPrecision()); btcAmountView.setShift(config.getBtcShift()); final CurrencyAmountView localAmountView = (CurrencyAmountView) view .findViewById(R.id.send_coins_amount_local); localAmountView.setInputPrecision(Constants.LOCAL_PRECISION); localAmountView.setHintPrecision(Constants.LOCAL_PRECISION); amountCalculatorLink = new CurrencyCalculatorLink(btcAmountView, localAmountView); amountCalculatorLink.setExchangeDirection(config.getLastExchangeDirection()); txFeeView = (TextView) view.findViewById(R.id.send_coins_transaction_fee); directPaymentEnableView = (CheckBox) view.findViewById(R.id.send_coins_direct_payment_enable); directPaymentEnableView.setOnCheckedChangeListener(new OnCheckedChangeListener() { @Override public void onCheckedChanged(final CompoundButton buttonView, final boolean isChecked) { if (paymentIntent.isBluetoothPaymentUrl() && isChecked && !bluetoothAdapter.isEnabled()) { // ask for permission to enable bluetooth startActivityForResult(new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE), REQUEST_CODE_ENABLE_BLUETOOTH_FOR_DIRECT_PAYMENT); } } }); directPaymentMessageView = (TextView) view.findViewById(R.id.send_coins_direct_payment_message); sentTransactionView = (ListView) view.findViewById(R.id.send_coins_sent_transaction); sentTransactionListAdapter = new TransactionsListAdapter(activity, wallet, application.maxConnectedPeers(), false); sentTransactionView.setAdapter(sentTransactionListAdapter); viewGo = (Button) view.findViewById(R.id.send_coins_go); viewGo.setOnClickListener(new OnClickListener() { @Override public void onClick(final View v) { validateReceivingAddress(true); isAmountValid(); if (everythingValid()) handleGo(); else requestFocusFirst(); } }); amountCalculatorLink.setNextFocusId(viewGo.getId()); viewCancel = (Button) view.findViewById(R.id.send_coins_cancel); viewCancel.setOnClickListener(new OnClickListener() { @Override public void onClick(final View v) { if (state == State.INPUT) activity.setResult(Activity.RESULT_CANCELED); activity.finish(); } }); popupMessageView = (TextView) inflater.inflate(R.layout.send_coins_popup_message, container); return view; } @Override public void onDestroyView() { super.onDestroyView(); config.setLastExchangeDirection(amountCalculatorLink.getExchangeDirection()); } @Override public void onResume() { super.onResume(); contentResolver.registerContentObserver(AddressBookProvider.contentUri(activity.getPackageName()), true, contentObserver); amountCalculatorLink.setListener(amountsListener); loaderManager.initLoader(ID_RATE_LOADER, null, rateLoaderCallbacks); updateView(); } @Override public void onPause() { loaderManager.destroyLoader(ID_RATE_LOADER); amountCalculatorLink.setListener(null); contentResolver.unregisterContentObserver(contentObserver); super.onPause(); } @Override public void onDetach() { handler.removeCallbacksAndMessages(null); super.onDetach(); } @Override public void onDestroy() { backgroundThread.getLooper().quit(); if (sentTransaction != null) sentTransaction.getConfidence().removeEventListener(sentTransactionConfidenceListener); super.onDestroy(); } @Override public void onSaveInstanceState(final Bundle outState) { super.onSaveInstanceState(outState); saveInstanceState(outState); } private void saveInstanceState(final Bundle outState) { outState.putParcelable("payment_intent", paymentIntent); outState.putSerializable("state", state); if (validatedAddress != null) outState.putParcelable("validated_address", validatedAddress); if (sentTransaction != null) outState.putSerializable("sent_transaction_hash", sentTransaction.getHash()); if (directPaymentAck != null) outState.putBoolean("direct_payment_ack", directPaymentAck); } private void restoreInstanceState(final Bundle savedInstanceState) { paymentIntent = (PaymentIntent) savedInstanceState.getParcelable("payment_intent"); state = (State) savedInstanceState.getSerializable("state"); validatedAddress = savedInstanceState.getParcelable("validated_address"); if (savedInstanceState.containsKey("sent_transaction_hash")) { sentTransaction = wallet .getTransaction((Sha256Hash) savedInstanceState.getSerializable("sent_transaction_hash")); sentTransaction.getConfidence().addEventListener(sentTransactionConfidenceListener); } if (savedInstanceState.containsKey("direct_payment_ack")) directPaymentAck = savedInstanceState.getBoolean("direct_payment_ack"); } @Override public void onActivityResult(final int requestCode, final int resultCode, final Intent intent) { if (requestCode == REQUEST_CODE_SCAN) { if (resultCode == Activity.RESULT_OK) { final String input = intent.getStringExtra(ScanActivity.INTENT_EXTRA_RESULT); new InputParser.StringInputParser(input) { @Override protected void handlePaymentIntent(final PaymentIntent paymentIntent) { updateStateFrom(paymentIntent); } @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.button_scan, messageResId, messageArgs); } }.parse(); } } else if (requestCode == REQUEST_CODE_ENABLE_BLUETOOTH_FOR_PAYMENT_REQUEST) { if (paymentIntent.isBluetoothPaymentRequestUrl()) requestPaymentRequest(paymentIntent.paymentRequestUrl); } else if (requestCode == REQUEST_CODE_ENABLE_BLUETOOTH_FOR_DIRECT_PAYMENT) { if (paymentIntent.isBluetoothPaymentUrl()) directPaymentEnableView.setChecked(resultCode == Activity.RESULT_OK); } } @Override public void onCreateOptionsMenu(final Menu menu, final MenuInflater inflater) { inflater.inflate(R.menu.send_coins_fragment_options, menu); scanAction = menu.findItem(R.id.send_coins_options_scan); emptyAction = menu.findItem(R.id.send_coins_options_empty); final PackageManager pm = activity.getPackageManager(); scanAction.setVisible(pm.hasSystemFeature(PackageManager.FEATURE_CAMERA) || pm.hasSystemFeature(PackageManager.FEATURE_CAMERA_FRONT)); super.onCreateOptionsMenu(menu, inflater); } @Override public boolean onOptionsItemSelected(final MenuItem item) { switch (item.getItemId()) { case R.id.send_coins_options_scan: handleScan(); return true; case R.id.send_coins_options_empty: handleEmpty(); return true; } return super.onOptionsItemSelected(item); } private void validateReceivingAddress(final boolean popups) { try { final String addressStr = receivingAddressView.getText().toString().trim(); if (!addressStr.isEmpty()) { final NetworkParameters addressParams = Address.getParametersFromAddress(addressStr); if (addressParams != null && !addressParams.equals(Constants.NETWORK_PARAMETERS)) { // address is valid, but from different known network if (popups) popupMessage(receivingAddressView, getString(R.string.send_coins_fragment_receiving_address_error_cross_network, addressParams.getId())); } else if (addressParams == null) { // address is valid, but from different unknown network if (popups) popupMessage(receivingAddressView, getString( R.string.send_coins_fragment_receiving_address_error_cross_network_unknown)); } else { // valid address final String label = AddressBookProvider.resolveLabel(activity, addressStr); validatedAddress = new AddressAndLabel(Constants.NETWORK_PARAMETERS, addressStr, label); receivingAddressView.setText(null); } } else { // empty field should not raise error message } } catch (final AddressFormatException x) { // could not decode address at all if (popups) popupMessage(receivingAddressView, getString(R.string.send_coins_fragment_receiving_address_error)); } updateView(); } private boolean isOutputsValid() { if (paymentIntent.hasOutputs()) return true; if (validatedAddress != null) return true; return false; } private boolean isAmountValid() { final BigInteger amount = paymentIntent.mayEditAmount() ? amountCalculatorLink.getAmount() : paymentIntent.getAmount(); return amount != null && amount.signum() > 0; } private boolean everythingValid() { return state == State.INPUT && isOutputsValid() && isAmountValid(); } private void requestFocusFirst() { if (!isOutputsValid()) receivingAddressView.requestFocus(); else if (!isAmountValid()) amountCalculatorLink.requestFocus(); else if (everythingValid()) viewGo.requestFocus(); else log.warn("unclear focus"); } private void popupMessage(@Nonnull final View anchor, @Nonnull final String message) { dismissPopup(); popupMessageView.setText(message); popupMessageView.setMaxWidth(getView().getWidth()); popup(anchor, popupMessageView); } private void popup(@Nonnull final View anchor, @Nonnull final View contentView) { contentView.measure(MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, 0), MeasureSpec.makeMeasureSpec(MeasureSpec.UNSPECIFIED, 0)); popupWindow = new PopupWindow(contentView, contentView.getMeasuredWidth(), contentView.getMeasuredHeight(), false); popupWindow.showAsDropDown(anchor); // hack contentView.setBackgroundResource( popupWindow.isAboveAnchor() ? R.drawable.popup_frame_above : R.drawable.popup_frame_below); } private void dismissPopup() { if (popupWindow != null) { popupWindow.dismiss(); popupWindow = null; } } private void handleGo() { state = State.PREPARATION; updateView(); // final payment intent final PaymentIntent finalPaymentIntent = paymentIntent.mergeWithEditedValues( amountCalculatorLink.getAmount(), validatedAddress != null ? validatedAddress.address : null); final BigInteger finalAmount = finalPaymentIntent.getAmount(); // prepare send request final SendRequest sendRequest = finalPaymentIntent.toSendRequest(); final Address returnAddress = WalletUtils.pickOldestKey(wallet).toAddress(Constants.NETWORK_PARAMETERS); sendRequest.changeAddress = returnAddress; sendRequest.emptyWallet = paymentIntent.mayEditAmount() && finalAmount.equals(wallet.getBalance(BalanceType.AVAILABLE)); new SendCoinsOfflineTask(wallet, backgroundHandler) { @Override protected void onSuccess(final Transaction transaction) { sentTransaction = transaction; state = State.SENDING; updateView(); sentTransaction.getConfidence().addEventListener(sentTransactionConfidenceListener); final Payment payment = PaymentProtocol.createPaymentMessage(sentTransaction, returnAddress, finalAmount, null, paymentIntent.payeeData); directPay(payment); application.broadcastTransaction(sentTransaction); final ComponentName callingActivity = activity.getCallingActivity(); if (callingActivity != null) { log.info("returning result to calling activity: {}", callingActivity.flattenToString()); final Intent result = new Intent(); BitcoinIntegration.transactionHashToResult(result, sentTransaction.getHashAsString()); if (paymentIntent.standard == PaymentIntent.Standard.BIP70) BitcoinIntegration.paymentToResult(result, payment.toByteArray()); activity.setResult(Activity.RESULT_OK, result); } } private void directPay(final Payment payment) { if (directPaymentEnableView.isChecked()) { final DirectPaymentTask.ResultCallback callback = new DirectPaymentTask.ResultCallback() { @Override public void onResult(final boolean ack) { directPaymentAck = ack; if (state == State.SENDING) state = State.SENT; updateView(); } @Override public void onFail(final int messageResId, final Object... messageArgs) { final DialogBuilder dialog = DialogBuilder.warn(activity, R.string.send_coins_fragment_direct_payment_failed_title); dialog.setMessage(paymentIntent.paymentUrl + "\n" + getString(messageResId, messageArgs) + "\n\n" + getString(R.string.send_coins_fragment_direct_payment_failed_msg)); dialog.setPositiveButton(R.string.button_retry, new DialogInterface.OnClickListener() { @Override public void onClick(final DialogInterface dialog, final int which) { directPay(payment); } }); dialog.setNegativeButton(R.string.button_dismiss, null); dialog.show(); } }; if (paymentIntent.isHttpPaymentUrl()) { new DirectPaymentTask.HttpPaymentTask(backgroundHandler, callback, paymentIntent.paymentUrl, application.httpUserAgent()).send(payment); } else if (paymentIntent.isBluetoothPaymentUrl() && bluetoothAdapter != null && bluetoothAdapter.isEnabled()) { new DirectPaymentTask.BluetoothPaymentTask(backgroundHandler, callback, bluetoothAdapter, Bluetooth.getBluetoothMac(paymentIntent.paymentUrl)).send(payment); } } } @Override protected void onInsufficientMoney(@Nullable final BigInteger missing) { state = State.INPUT; updateView(); final BigInteger estimated = wallet.getBalance(BalanceType.ESTIMATED); final BigInteger available = wallet.getBalance(BalanceType.AVAILABLE); final BigInteger pending = estimated.subtract(available); final int btcShift = config.getBtcShift(); final int btcPrecision = config.getBtcMaxPrecision(); final String btcPrefix = config.getBtcPrefix(); final DialogBuilder dialog = DialogBuilder.warn(activity, R.string.send_coins_fragment_insufficient_money_title); final StringBuilder msg = new StringBuilder(); if (missing != null) msg.append(getString(R.string.send_coins_fragment_insufficient_money_msg1, btcPrefix + ' ' + GenericUtils.formatValue(missing, btcPrecision, btcShift))) .append("\n\n"); if (pending.signum() > 0) msg.append(getString(R.string.send_coins_fragment_pending, btcPrefix + ' ' + GenericUtils.formatValue(pending, btcPrecision, btcShift))) .append("\n\n"); msg.append(getString(R.string.send_coins_fragment_insufficient_money_msg2)); dialog.setMessage(msg); dialog.setPositiveButton(R.string.send_coins_options_empty, new DialogInterface.OnClickListener() { @Override public void onClick(final DialogInterface dialog, final int which) { handleEmpty(); } }); dialog.setNegativeButton(R.string.button_cancel, null); dialog.show(); } @Override protected void onFailure(@Nonnull Exception exception) { state = State.FAILED; updateView(); final DialogBuilder dialog = DialogBuilder.warn(activity, R.string.send_coins_error_msg); dialog.setMessage(exception.toString()); dialog.setNeutralButton(R.string.button_dismiss, null); dialog.show(); } }.sendCoinsOffline(sendRequest); // send asynchronously } private void handleScan() { startActivityForResult(new Intent(activity, ScanActivity.class), REQUEST_CODE_SCAN); } private void handleEmpty() { final BigInteger available = wallet.getBalance(BalanceType.AVAILABLE); amountCalculatorLink.setBtcAmount(available); updateView(); } public class AutoCompleteAddressAdapter extends CursorAdapter { public AutoCompleteAddressAdapter(final Context context, final Cursor c) { super(context, c); } @Override public View newView(final Context context, final Cursor cursor, final ViewGroup parent) { final LayoutInflater inflater = LayoutInflater.from(context); return inflater.inflate(R.layout.address_book_row, parent, false); } @Override public void bindView(final View view, final Context context, final Cursor cursor) { final String label = cursor.getString(cursor.getColumnIndexOrThrow(AddressBookProvider.KEY_LABEL)); final String address = cursor.getString(cursor.getColumnIndexOrThrow(AddressBookProvider.KEY_ADDRESS)); final ViewGroup viewGroup = (ViewGroup) view; final TextView labelView = (TextView) viewGroup.findViewById(R.id.address_book_row_label); labelView.setText(label); final TextView addressView = (TextView) viewGroup.findViewById(R.id.address_book_row_address); addressView.setText(WalletUtils.formatHash(address, Constants.ADDRESS_FORMAT_GROUP_SIZE, Constants.ADDRESS_FORMAT_LINE_SIZE)); } @Override public CharSequence convertToString(final Cursor cursor) { return cursor.getString(cursor.getColumnIndexOrThrow(AddressBookProvider.KEY_ADDRESS)); } @Override public Cursor runQueryOnBackgroundThread(final CharSequence constraint) { final Cursor cursor = activity.managedQuery(AddressBookProvider.contentUri(activity.getPackageName()), null, AddressBookProvider.SELECTION_QUERY, new String[] { constraint.toString() }, null); return cursor; } } private void updateView() { if (paymentIntent != null) { getView().setVisibility(View.VISIBLE); if (paymentIntent.hasPayee()) { payeeNameView.setVisibility(View.VISIBLE); payeeNameView.setText(paymentIntent.payeeName); if (paymentIntent.payeeOrganization != null) { payeeOrganizationView.setVisibility(View.VISIBLE); payeeOrganizationView.setText(paymentIntent.payeeOrganization); } else { payeeOrganizationView.setVisibility(View.GONE); } payeeVerifiedByView.setVisibility(View.VISIBLE); final String verifiedBy = paymentIntent.payeeVerifiedBy != null ? paymentIntent.payeeVerifiedBy : getString(R.string.send_coins_fragment_payee_verified_by_unknown); payeeVerifiedByView.setText(Constants.CHAR_CHECKMARK + String.format(getString(R.string.send_coins_fragment_payee_verified_by), verifiedBy)); } else { payeeNameView.setVisibility(View.GONE); payeeOrganizationView.setVisibility(View.GONE); payeeVerifiedByView.setVisibility(View.GONE); } if (paymentIntent.hasOutputs()) { receivingAddressView.setVisibility(View.GONE); receivingStaticView.setVisibility(View.VISIBLE); receivingStaticLabelView.setText(paymentIntent.memo); if (paymentIntent.hasAddress()) receivingStaticAddressView.setText(WalletUtils.formatAddress(paymentIntent.getAddress(), Constants.ADDRESS_FORMAT_GROUP_SIZE, Constants.ADDRESS_FORMAT_LINE_SIZE)); else receivingStaticAddressView.setText(R.string.send_coins_fragment_receiving_address_complex); } else if (validatedAddress != null) { receivingAddressView.setVisibility(View.GONE); receivingStaticView.setVisibility(View.VISIBLE); receivingStaticAddressView.setText(WalletUtils.formatAddress(validatedAddress.address, Constants.ADDRESS_FORMAT_GROUP_SIZE, Constants.ADDRESS_FORMAT_LINE_SIZE)); final String addressBookLabel = AddressBookProvider.resolveLabel(activity, validatedAddress.address.toString()); final String staticLabel; if (addressBookLabel != null) staticLabel = addressBookLabel; else if (validatedAddress.label != null) staticLabel = validatedAddress.label; else staticLabel = getString(R.string.address_unlabeled); receivingStaticLabelView.setText(staticLabel); receivingStaticLabelView.setTextColor(getResources().getColor( validatedAddress.label != null ? R.color.fg_significant : R.color.fg_insignificant)); } else { receivingStaticView.setVisibility(View.GONE); receivingAddressView.setVisibility(View.VISIBLE); } receivingAddressView.setEnabled(state == State.INPUT); receivingStaticView.setEnabled(state == State.INPUT); amountCalculatorLink.setEnabled(state == State.INPUT && paymentIntent.mayEditAmount()); final boolean directPaymentVisible; if (paymentIntent.hasPaymentUrl()) { if (paymentIntent.isBluetoothPaymentUrl()) directPaymentVisible = bluetoothAdapter != null; else directPaymentVisible = !Constants.BUG_OPENSSL_HEARTBLEED; } else { directPaymentVisible = false; } directPaymentEnableView.setVisibility(directPaymentVisible ? View.VISIBLE : View.GONE); directPaymentEnableView.setEnabled(state == State.INPUT); if (sentTransaction != null) { final int btcPrecision = config.getBtcPrecision(); final int btcShift = config.getBtcShift(); sentTransactionView.setVisibility(View.VISIBLE); sentTransactionListAdapter.setPrecision(btcPrecision, btcShift); sentTransactionListAdapter.replace(sentTransaction); } else { sentTransactionView.setVisibility(View.GONE); sentTransactionListAdapter.clear(); } if (directPaymentAck != null) { directPaymentMessageView.setVisibility(View.VISIBLE); directPaymentMessageView.setText(directPaymentAck ? R.string.send_coins_fragment_direct_payment_ack : R.string.send_coins_fragment_direct_payment_nack); } else { directPaymentMessageView.setVisibility(View.GONE); } viewCancel.setEnabled(state != State.PREPARATION); viewGo.setEnabled(everythingValid()); String str = String.format("%s %s", amountCalculatorLink.hasAmount() ? GenericUtils.formatValue(CoinDefinition.DEFAULT_MIN_TX_FEE, 8, 0) : String.format("%.1f", 0f), CoinDefinition.coinTicker); txFeeView.setHint(str); if (state == State.INPUT) { viewCancel.setText(R.string.button_cancel); viewGo.setText(R.string.send_coins_fragment_button_send); } else if (state == State.PREPARATION) { viewCancel.setText(R.string.button_cancel); viewGo.setText(R.string.send_coins_preparation_msg); } else if (state == State.SENDING) { viewCancel.setText(R.string.send_coins_fragment_button_back); viewGo.setText(R.string.send_coins_sending_msg); } else if (state == State.SENT) { viewCancel.setText(R.string.send_coins_fragment_button_back); viewGo.setText(R.string.send_coins_sent_msg); } else if (state == State.FAILED) { viewCancel.setText(R.string.send_coins_fragment_button_back); viewGo.setText(R.string.send_coins_failed_msg); } // enable actions if (scanAction != null) scanAction.setEnabled(state == State.INPUT); if (emptyAction != null) emptyAction.setEnabled(state == State.INPUT); // focus linking final int activeAmountViewId = amountCalculatorLink.activeTextView().getId(); receivingAddressView.setNextFocusDownId(activeAmountViewId); receivingStaticView.setNextFocusDownId(activeAmountViewId); GenericUtils.setNextFocusForwardId(receivingAddressView, activeAmountViewId); viewGo.setNextFocusUpId(activeAmountViewId); } else { getView().setVisibility(View.GONE); } } private void initStateFromIntentExtras(@Nonnull final Bundle extras) { final PaymentIntent paymentIntent = extras.getParcelable(SendCoinsActivity.INTENT_EXTRA_PAYMENT_INTENT); updateStateFrom(paymentIntent); } private void initStateFromBitcoinUri(@Nonnull final Uri bitcoinUri) { final String input = bitcoinUri.toString(); new InputParser.StringInputParser(input) { @Override protected void handlePaymentIntent(@Nonnull final PaymentIntent paymentIntent) { updateStateFrom(paymentIntent); } @Override protected void handlePrivateKey(@Nonnull final ECKey key) { throw new UnsupportedOperationException(); } @Override protected void handleDirectTransaction(@Nonnull final Transaction transaction) throws VerificationException { throw new UnsupportedOperationException(); } @Override protected void error(final int messageResId, final Object... messageArgs) { dialog(activity, activityDismissListener, 0, messageResId, messageArgs); } }.parse(); } private void initStateFromPaymentRequest(@Nonnull final String mimeType, @Nonnull final byte[] input) { new InputParser.BinaryInputParser(mimeType, input) { @Override protected void handlePaymentIntent(final PaymentIntent paymentIntent) { updateStateFrom(paymentIntent); } @Override protected void error(final int messageResId, final Object... messageArgs) { dialog(activity, activityDismissListener, 0, messageResId, messageArgs); } }.parse(); } private void initStateFromIntentUri(@Nonnull final String mimeType, @Nonnull final Uri bitcoinUri) { try { final InputStream is = contentResolver.openInputStream(bitcoinUri); new InputParser.StreamInputParser(mimeType, is) { @Override protected void handlePaymentIntent(final PaymentIntent paymentIntent) { updateStateFrom(paymentIntent); } @Override protected void error(final int messageResId, final Object... messageArgs) { dialog(activity, activityDismissListener, 0, messageResId, messageArgs); } }.parse(); } catch (final FileNotFoundException x) { throw new RuntimeException(x); } } private void updateStateFrom(final @Nonnull PaymentIntent paymentIntent) { log.info("got {}", paymentIntent); this.paymentIntent = paymentIntent; directPaymentAck = null; // delay these actions until fragment is resumed handler.post(new Runnable() { @Override public void run() { if (state == State.INPUT) { amountCalculatorLink.setBtcAmount(paymentIntent.getAmount()); if (paymentIntent.isBluetoothPaymentUrl()) directPaymentEnableView .setChecked(bluetoothAdapter != null && bluetoothAdapter.isEnabled()); else if (paymentIntent.isHttpPaymentUrl()) directPaymentEnableView.setChecked(!Constants.BUG_OPENSSL_HEARTBLEED); requestFocusFirst(); updateView(); } if (paymentIntent.hasPaymentRequestUrl()) { if (paymentIntent.isBluetoothPaymentRequestUrl() && !Constants.BUG_OPENSSL_HEARTBLEED) { if (bluetoothAdapter.isEnabled()) requestPaymentRequest(paymentIntent.paymentRequestUrl); else // ask for permission to enable bluetooth startActivityForResult(new Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE), REQUEST_CODE_ENABLE_BLUETOOTH_FOR_PAYMENT_REQUEST); } else if (paymentIntent.isHttpPaymentRequestUrl()) { requestPaymentRequest(paymentIntent.paymentRequestUrl); } } } }); } private void requestPaymentRequest(final String paymentRequestUrl) { final String host; if (!Bluetooth.isBluetoothUrl(paymentRequestUrl)) host = Uri.parse(paymentRequestUrl).getHost(); else host = Bluetooth.decompressMac(Bluetooth.getBluetoothMac(paymentRequestUrl)); ProgressDialogFragment.showProgress(fragmentManager, getString(R.string.send_coins_fragment_request_payment_request_progress, host)); final RequestPaymentRequestTask.ResultCallback callback = new RequestPaymentRequestTask.ResultCallback() { @Override public void onPaymentIntent(final PaymentIntent paymentIntent) { ProgressDialogFragment.dismissProgress(fragmentManager); if (SendCoinsFragment.this.paymentIntent.isExtendedBy(paymentIntent)) { updateStateFrom(paymentIntent); updateView(); } else { final StringBuilder reasons = new StringBuilder(); if (!SendCoinsFragment.this.paymentIntent.equalsAddress(paymentIntent)) reasons.append("address"); if (!SendCoinsFragment.this.paymentIntent.equalsAmount(paymentIntent)) reasons.append(reasons.length() == 0 ? "" : ", ").append("amount"); if (reasons.length() == 0) reasons.append("unknown"); final DialogBuilder dialog = DialogBuilder.warn(activity, R.string.send_coins_fragment_request_payment_request_failed_title); dialog.setMessage( getString(R.string.send_coins_fragment_request_payment_request_wrong_signature) + "\n\n" + reasons); dialog.singleDismissButton(null); dialog.show(); log.info("BIP72 trust check failed: {}", reasons); } } @Override public void onFail(final int messageResId, final Object... messageArgs) { ProgressDialogFragment.dismissProgress(fragmentManager); final DialogBuilder dialog = DialogBuilder.warn(activity, R.string.send_coins_fragment_request_payment_request_failed_title); dialog.setMessage(getString(messageResId, messageArgs)); dialog.setPositiveButton(R.string.button_retry, new DialogInterface.OnClickListener() { @Override public void onClick(final DialogInterface dialog, final int which) { requestPaymentRequest(paymentRequestUrl); } }); dialog.setNegativeButton(R.string.button_dismiss, null); dialog.show(); } }; if (!Bluetooth.isBluetoothUrl(paymentRequestUrl)) new RequestPaymentRequestTask.HttpRequestTask(backgroundHandler, callback, application.httpUserAgent()) .requestPaymentRequest(paymentRequestUrl); else new RequestPaymentRequestTask.BluetoothRequestTask(backgroundHandler, callback, bluetoothAdapter) .requestPaymentRequest(paymentRequestUrl); } }