com.dopecoin.wallet.ui.SendingAddressesFragment.java Source code

Java tutorial

Introduction

Here is the source code for com.dopecoin.wallet.ui.SendingAddressesFragment.java

Source

/*
 * 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.dopecoin.wallet.ui;

import java.util.ArrayList;

import javax.annotation.Nonnull;

import android.app.Activity;
import android.content.Context;
import android.content.Intent;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Handler;
import android.support.v4.app.LoaderManager;
import android.support.v4.content.CursorLoader;
import android.support.v4.content.Loader;
import android.support.v4.widget.SimpleCursorAdapter;
import android.support.v4.widget.SimpleCursorAdapter.ViewBinder;
import android.text.ClipboardManager;
import android.view.View;
import android.widget.ListView;
import android.widget.TextView;

import com.actionbarsherlock.app.SherlockListFragment;
import com.actionbarsherlock.view.ActionMode;
import com.actionbarsherlock.view.Menu;
import com.actionbarsherlock.view.MenuInflater;
import com.actionbarsherlock.view.MenuItem;
import com.google.dopecoin.core.Address;
import com.google.dopecoin.core.AddressFormatException;
import com.google.dopecoin.core.Transaction;
import com.google.dopecoin.uri.BitcoinURI;

import com.dopecoin.wallet.AddressBookProvider;
import com.dopecoin.wallet.Constants;
import com.dopecoin.wallet.PaymentIntent;
import com.dopecoin.wallet.ui.InputParser.StringInputParser;
import com.dopecoin.wallet.util.BitmapFragment;
import com.dopecoin.wallet.util.Qr;
import com.dopecoin.wallet.util.WalletUtils;
import com.dopecoin.wallet.R;

/**
 * @author Andreas Schildbach
 */
public final class SendingAddressesFragment extends SherlockListFragment
        implements LoaderManager.LoaderCallbacks<Cursor> {
    private AbstractWalletActivity activity;
    private ClipboardManager clipboardManager;
    private LoaderManager loaderManager;

    private SimpleCursorAdapter adapter;
    private String walletAddressesSelection;

    private final Handler handler = new Handler();

    private static final int REQUEST_CODE_SCAN = 0;

    @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 onViewCreated(View view, Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

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

    @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) {
                    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 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() {
        if (clipboardManager.hasText()) {
            final String input = clipboardManager.getText().toString().trim();

            new StringInputParser(input) {
                @Override
                protected void handlePaymentIntent(final PaymentIntent paymentIntent) {
                    if (paymentIntent.hasAddress())
                        EditAddressBookEntryFragment.edit(getFragmentManager(),
                                paymentIntent.getAddress().toString());
                    else
                        dialog(activity, null, R.string.address_book_options_paste_from_clipboard_title,
                                R.string.address_book_options_paste_from_clipboard_invalid);
                }

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

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

    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.startActionMode(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(activity.getPackageName()).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 = (int) (256 * getResources().getDisplayMetrics().density);
        BitmapFragment.show(getFragmentManager(), Qr.bitmap(uri, size));
    }

    private void handleCopyToClipboard(final String address) {
        clipboardManager.setText(address);
        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(activity.getPackageName());
        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);
    }

    @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();
    }
}