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/*
* Copyright (C) 2014 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;
import android.graphics.Bitmap;
import android.net.Uri;
import android.os.Bundle;
import android.support.v7.app.ActionBarActivity;
import android.view.View;
import android.view.ViewTreeObserver.OnGlobalLayoutListener;
import android.widget.ImageView;
import org.sufficientlysecure.keychain.Constants;
import org.sufficientlysecure.keychain.R;
import org.sufficientlysecure.keychain.ui.util.ActionBarHelper;
import org.sufficientlysecure.keychain.ui.util.KeyFormattingUtils;
import org.sufficientlysecure.keychain.provider.KeychainContract;
import org.sufficientlysecure.keychain.provider.ProviderHelper;
import org.sufficientlysecure.keychain.util.Log;
import org.sufficientlysecure.keychain.ui.util.Notify;
import org.sufficientlysecure.keychain.ui.util.Notify.Style;
import org.sufficientlysecure.keychain.ui.util.QrCodeUtils;
public class QrCodeViewActivity extends BaseActivity {
private ImageView mFingerprintQrCode;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Inflate a "Done" custom action bar
ActionBarHelper.setOneButtonView(getSupportActionBar(),
R.string.btn_okay, R.drawable.ic_action_done,
new View.OnClickListener() {
@Override
public void onClick(View v) {
// "Done"
finish();
}
}
);
Uri dataUri = getIntent().getData();
if (dataUri == null) {
Log.e(Constants.TAG, "Data missing. Should be Uri of key!");
finish();
return;
}
mFingerprintQrCode = (ImageView) findViewById(R.id.qr_code_image);
mFingerprintQrCode.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View v) {
finish();
}
});
ProviderHelper providerHelper = new ProviderHelper(this);
try {
byte[] blob = (byte[]) providerHelper.getGenericData(
KeychainContract.KeyRings.buildUnifiedKeyRingUri(dataUri),
KeychainContract.KeyRings.FINGERPRINT, ProviderHelper.FIELD_TYPE_BLOB);
if (blob == null) {
Log.e(Constants.TAG, "key not found!");
Notify.showNotify(this, R.string.error_key_not_found, Style.ERROR);
finish();
}
String fingerprint = KeyFormattingUtils.convertFingerprintToHex(blob);
String qrCodeContent = Constants.FINGERPRINT_SCHEME + ":" + fingerprint;
// create a minimal size qr code, we can keep this in ram no problem
final Bitmap qrCode = QrCodeUtils.getQRCodeBitmap(qrCodeContent, 0);
mFingerprintQrCode.getViewTreeObserver().addOnGlobalLayoutListener(
new OnGlobalLayoutListener() {
@Override
public void onGlobalLayout() {
// create actual bitmap in display dimensions
Bitmap scaled = Bitmap.createScaledBitmap(qrCode,
mFingerprintQrCode.getWidth(), mFingerprintQrCode.getWidth(), false);
mFingerprintQrCode.setImageBitmap(scaled);
}
});
} catch (ProviderHelper.NotFoundException e) {
Log.e(Constants.TAG, "key not found!", e);
Notify.showNotify(this, R.string.error_key_not_found, Style.ERROR);
finish();
}
}
@Override
protected void initLayout() {
setContentView(R.layout.qr_code_activity);
}
@Override
protected void onResume() {
super.onResume();
// custom activity transition to get zoom in effect
this.overridePendingTransition(R.anim.qr_code_zoom_enter, android.R.anim.fade_out);
}
@Override
protected void onPause() {
super.onPause();
// custom activity transition to get zoom out effect
this.overridePendingTransition(0, R.anim.qr_code_zoom_exit);
}
}
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