115 lines
4.6 KiB
Java
115 lines
4.6 KiB
Java
/*
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* Copyright (C) 2014 Dominik Schürmann <dominik@dominikschuermann.de>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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package org.sufficientlysecure.keychain.ui;
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import android.graphics.Bitmap;
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import android.net.Uri;
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import android.os.Bundle;
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import android.support.v4.app.ActivityCompat;
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import android.support.v7.widget.CardView;
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import android.view.View;
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import android.view.ViewTreeObserver.OnGlobalLayoutListener;
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import android.widget.ImageView;
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import org.sufficientlysecure.keychain.Constants;
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import org.sufficientlysecure.keychain.R;
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import org.sufficientlysecure.keychain.provider.KeychainContract;
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import org.sufficientlysecure.keychain.provider.ProviderHelper;
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import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
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import org.sufficientlysecure.keychain.ui.util.Notify;
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import org.sufficientlysecure.keychain.ui.util.Notify.Style;
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import org.sufficientlysecure.keychain.ui.util.QrCodeUtils;
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import org.sufficientlysecure.keychain.util.Log;
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public class QrCodeViewActivity extends BaseActivity {
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private ImageView mQrCode;
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private CardView mQrCodeLayout;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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// Inflate a "Done" custom action bar
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setFullScreenDialogClose(
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new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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// "Done"
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ActivityCompat.finishAfterTransition(QrCodeViewActivity.this);
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}
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}
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);
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Uri dataUri = getIntent().getData();
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if (dataUri == null) {
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Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
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ActivityCompat.finishAfterTransition(QrCodeViewActivity.this);
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return;
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}
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mQrCode = (ImageView) findViewById(R.id.qr_code_image);
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mQrCodeLayout = (CardView) findViewById(R.id.qr_code_image_layout);
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mQrCodeLayout.setOnClickListener(new View.OnClickListener() {
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@Override
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public void onClick(View v) {
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ActivityCompat.finishAfterTransition(QrCodeViewActivity.this);
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}
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});
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ProviderHelper providerHelper = new ProviderHelper(this);
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try {
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byte[] blob = (byte[]) providerHelper.getGenericData(
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KeychainContract.KeyRings.buildUnifiedKeyRingUri(dataUri),
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KeychainContract.KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
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if (blob == null) {
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Log.e(Constants.TAG, "key not found!");
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Notify.create(this, R.string.error_key_not_found, Style.ERROR).show();
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ActivityCompat.finishAfterTransition(QrCodeViewActivity.this);
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}
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String fingerprint = KeyFormattingUtils.convertFingerprintToHex(blob);
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String qrCodeContent = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
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// create a minimal size qr code, we can keep this in ram no problem
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final Bitmap qrCode = QrCodeUtils.getQRCodeBitmap(qrCodeContent, 0);
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mQrCode.getViewTreeObserver().addOnGlobalLayoutListener(
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new OnGlobalLayoutListener() {
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@Override
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public void onGlobalLayout() {
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// create actual bitmap in display dimensions
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Bitmap scaled = Bitmap.createScaledBitmap(qrCode,
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mQrCode.getWidth(), mQrCode.getWidth(), false);
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mQrCode.setImageBitmap(scaled);
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}
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});
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} catch (ProviderHelper.NotFoundException e) {
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Log.e(Constants.TAG, "key not found!", e);
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Notify.create(this, R.string.error_key_not_found, Style.ERROR).show();
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ActivityCompat.finishAfterTransition(QrCodeViewActivity.this);
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}
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}
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@Override
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protected void initLayout() {
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setContentView(R.layout.qr_code_activity);
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}
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} |