diff options
Diffstat (limited to 'OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java')
-rw-r--r-- | OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java | 212 |
1 files changed, 212 insertions, 0 deletions
diff --git a/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java new file mode 100644 index 000000000..b6ff139df --- /dev/null +++ b/OpenKeychain/src/main/java/org/sufficientlysecure/keychain/ui/dialog/ShareQrCodeDialogFragment.java @@ -0,0 +1,212 @@ +/* + * Copyright (C) 2012-2013 Dominik Schürmann <dominik@dominikschuermann.de> + * + * 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 org.sufficientlysecure.keychain.ui.dialog; + +import android.app.Activity; +import android.app.AlertDialog; +import android.app.Dialog; +import android.net.Uri; +import android.os.Bundle; +import android.support.v4.app.DialogFragment; +import android.view.LayoutInflater; +import android.view.View; +import android.widget.Button; +import android.widget.ImageView; +import android.widget.TextView; +import org.sufficientlysecure.keychain.Constants; +import org.sufficientlysecure.keychain.R; +import org.sufficientlysecure.keychain.pgp.PgpKeyHelper; +import org.sufficientlysecure.keychain.provider.KeychainContract.KeyRings; +import org.sufficientlysecure.keychain.provider.ProviderHelper; +import org.sufficientlysecure.keychain.util.QrCodeUtils; + +import java.util.ArrayList; + +public class ShareQrCodeDialogFragment extends DialogFragment { + private static final String ARG_KEY_URI = "uri"; + private static final String ARG_FINGERPRINT_ONLY = "fingerprint_only"; + + private ImageView mImage; + private TextView mText; + + private boolean mFingerprintOnly; + + private ArrayList<String> mContentList; + private int mCounter; + + private static final int QR_CODE_SIZE = 1000; + + /** + * Creates new instance of this dialog fragment + */ + public static ShareQrCodeDialogFragment newInstance(Uri dataUri, boolean fingerprintOnly) { + ShareQrCodeDialogFragment frag = new ShareQrCodeDialogFragment(); + Bundle args = new Bundle(); + args.putParcelable(ARG_KEY_URI, dataUri); + args.putBoolean(ARG_FINGERPRINT_ONLY, fingerprintOnly); + + frag.setArguments(args); + + return frag; + } + + /** + * Creates dialog + */ + @Override + public Dialog onCreateDialog(Bundle savedInstanceState) { + final Activity activity = getActivity(); + + Uri dataUri = getArguments().getParcelable(ARG_KEY_URI); + mFingerprintOnly = getArguments().getBoolean(ARG_FINGERPRINT_ONLY); + + AlertDialog.Builder alert = new AlertDialog.Builder(getActivity()); + + alert.setTitle(R.string.share_qr_code_dialog_title); + + LayoutInflater inflater = activity.getLayoutInflater(); + View view = inflater.inflate(R.layout.share_qr_code_dialog, null); + alert.setView(view); + + mImage = (ImageView) view.findViewById(R.id.share_qr_code_dialog_image); + mText = (TextView) view.findViewById(R.id.share_qr_code_dialog_text); + + String content = null; + if (mFingerprintOnly) { + alert.setPositiveButton(R.string.btn_okay, null); + + byte[] blob = (byte[]) ProviderHelper.getGenericData( + getActivity(), KeyRings.buildUnifiedKeyRingUri(dataUri), + KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB); + if(blob == null) { + // TODO error handling?! + return null; + } + + String fingerprint = PgpKeyHelper.convertFingerprintToHex(blob); + mText.setText(getString(R.string.share_qr_code_dialog_fingerprint_text) + " " + fingerprint); + content = Constants.FINGERPRINT_SCHEME + ":" + fingerprint; + setQrCode(content); + } else { + mText.setText(R.string.share_qr_code_dialog_start); + + // TODO works, but + long masterKeyId = ProviderHelper.getMasterKeyId(getActivity(), dataUri); + // get public keyring as ascii armored string + ArrayList<String> keyringArmored = ProviderHelper.getKeyRingsAsArmoredString( + getActivity(), new long[] { masterKeyId }); + + // TODO: binary? + + content = keyringArmored.get(0); + + // OnClickListener are set in onResume to prevent automatic dismissing of Dialogs + // http://bit.ly/O5vfaR + alert.setPositiveButton(R.string.btn_next, null); + alert.setNegativeButton(android.R.string.cancel, null); + + mContentList = splitString(content, 1000); + + // start with first + mCounter = 0; + updatePartsQrCode(); + } + + return alert.create(); + } + + @Override + public void onResume() { + super.onResume(); + + if (!mFingerprintOnly) { + AlertDialog alertDialog = (AlertDialog) getDialog(); + final Button backButton = alertDialog.getButton(AlertDialog.BUTTON_NEGATIVE); + final Button nextButton = alertDialog.getButton(AlertDialog.BUTTON_POSITIVE); + + backButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + if (mCounter > 0) { + mCounter--; + updatePartsQrCode(); + updateDialog(backButton, nextButton); + } else { + dismiss(); + } + } + }); + nextButton.setOnClickListener(new View.OnClickListener() { + @Override + public void onClick(View v) { + + if (mCounter < mContentList.size() - 1) { + mCounter++; + updatePartsQrCode(); + updateDialog(backButton, nextButton); + } else { + dismiss(); + } + } + }); + } + } + + private void updatePartsQrCode() { + // Content: <counter>,<size>,<content> + setQrCode(mCounter + "," + mContentList.size() + "," + mContentList.get(mCounter)); + } + + private void setQrCode(String data) { + mImage.setImageBitmap(QrCodeUtils.getQRCodeBitmap(data, QR_CODE_SIZE)); + } + + private void updateDialog(Button backButton, Button nextButton) { + if (mCounter == 0) { + backButton.setText(android.R.string.cancel); + } else { + backButton.setText(R.string.btn_back); + } + if (mCounter == mContentList.size() - 1) { + nextButton.setText(android.R.string.ok); + } else { + nextButton.setText(R.string.btn_next); + } + + mText.setText(getResources().getString(R.string.share_qr_code_dialog_progress, + mCounter + 1, mContentList.size())); + } + + /** + * Split String by number of characters + * + * @param text + * @param size + * @return + */ + private ArrayList<String> splitString(String text, int size) { + ArrayList<String> strings = new ArrayList<String>(); + int index = 0; + while (index < text.length()) { + strings.add(text.substring(index, Math.min(index + size, text.length()))); + index += size; + } + + return strings; + } +} |