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package eu.siacs.conversations.ui;
import android.app.Activity;
import android.content.Intent;
import android.media.MediaRecorder;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.Environment;
import android.os.FileObserver;
import android.os.Handler;
import android.os.SystemClock;
import android.util.Log;
import android.view.View;
import android.view.WindowManager;
import android.widget.Toast;
import androidx.databinding.DataBindingUtil;
import java.io.File;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Locale;
import java.util.Objects;
import java.util.concurrent.CountDownLatch;
import java.util.concurrent.TimeUnit;
import eu.siacs.conversations.Config;
import eu.siacs.conversations.R;
import eu.siacs.conversations.databinding.ActivityRecordingBinding;
import eu.siacs.conversations.ui.util.SettingsUtils;
import eu.siacs.conversations.utils.ThemeHelper;
import eu.siacs.conversations.utils.TimeFrameUtils;
public class RecordingActivity extends Activity implements View.OnClickListener {
private ActivityRecordingBinding binding;
private MediaRecorder mRecorder;
private long mStartTime = 0;
private final CountDownLatch outputFileWrittenLatch = new CountDownLatch(1);
private final Handler mHandler = new Handler();
private final Runnable mTickExecutor =
new Runnable() {
@Override
public void run() {
tick();
mHandler.postDelayed(mTickExecutor, 100);
}
};
private File mOutputFile;
private FileObserver mFileObserver;
@Override
protected void onCreate(Bundle savedInstanceState) {
setTheme(ThemeHelper.findDialog(this));
super.onCreate(savedInstanceState);
this.binding = DataBindingUtil.setContentView(this, R.layout.activity_recording);
this.binding.cancelButton.setOnClickListener(this);
this.binding.shareButton.setOnClickListener(this);
this.setFinishOnTouchOutside(false);
getWindow().addFlags(WindowManager.LayoutParams.FLAG_KEEP_SCREEN_ON);
}
@Override
protected void onResume() {
super.onResume();
SettingsUtils.applyScreenshotPreventionSetting(this);
}
@Override
protected void onStart() {
super.onStart();
if (!startRecording()) {
this.binding.shareButton.setEnabled(false);
this.binding.timer.setTextAppearance(this, R.style.TextAppearance_Conversations_Title);
this.binding.timer.setText(R.string.unable_to_start_recording);
}
}
@Override
protected void onStop() {
super.onStop();
if (mRecorder != null) {
mHandler.removeCallbacks(mTickExecutor);
stopRecording(false);
}
if (mFileObserver != null) {
mFileObserver.stopWatching();
}
}
private boolean startRecording() {
mRecorder = new MediaRecorder();
mRecorder.setAudioSource(MediaRecorder.AudioSource.MIC);
mRecorder.setOutputFormat(MediaRecorder.OutputFormat.MPEG_4);
mRecorder.setAudioEncoder(MediaRecorder.AudioEncoder.AAC);
mRecorder.setAudioEncodingBitRate(96000);
mRecorder.setAudioSamplingRate(22050);
setupOutputFile();
mRecorder.setOutputFile(mOutputFile.getAbsolutePath());
try {
mRecorder.prepare();
mRecorder.start();
mStartTime = SystemClock.elapsedRealtime();
mHandler.postDelayed(mTickExecutor, 100);
Log.d("Voice Recorder", "started recording to " + mOutputFile.getAbsolutePath());
return true;
} catch (Exception e) {
Log.e("Voice Recorder", "prepare() failed " + e.getMessage());
return false;
}
}
protected void stopRecording(final boolean saveFile) {
try {
mRecorder.stop();
mRecorder.release();
} catch (Exception e) {
if (saveFile) {
Toast.makeText(this, R.string.unable_to_save_recording, Toast.LENGTH_SHORT).show();
return;
}
} finally {
mRecorder = null;
mStartTime = 0;
}
if (!saveFile && mOutputFile != null) {
if (mOutputFile.delete()) {
Log.d(Config.LOGTAG, "deleted canceled recording");
}
}
if (saveFile) {
new Thread(
() -> {
try {
if (!outputFileWrittenLatch.await(2, TimeUnit.SECONDS)) {
Log.d(
Config.LOGTAG,
"time out waiting for output file to be written");
}
} catch (InterruptedException e) {
Log.d(
Config.LOGTAG,
"interrupted while waiting for output file to be written",
e);
}
runOnUiThread(
() -> {
setResult(
Activity.RESULT_OK,
new Intent()
.setData(Uri.fromFile(mOutputFile)));
finish();
});
})
.start();
}
}
private File generateOutputFilename() {
final SimpleDateFormat dateFormat = new SimpleDateFormat("yyyyMMdd_HHmmssSSS", Locale.US);
final String filename = "RECORDING_" + dateFormat.format(new Date()) + ".m4a";
final File parentDirectory;
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.S) {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_RECORDINGS);
} else {
parentDirectory =
Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOWNLOADS);
}
final File conversationsDirectory = new File(parentDirectory, getString(R.string.app_name));
return new File(conversationsDirectory, filename);
}
private void setupOutputFile() {
mOutputFile = generateOutputFilename();
final File parentDirectory = mOutputFile.getParentFile();
if (Objects.requireNonNull(parentDirectory).mkdirs()) {
Log.d(Config.LOGTAG, "created " + parentDirectory.getAbsolutePath());
}
setupFileObserver(parentDirectory);
}
private void setupFileObserver(File directory) {
mFileObserver =
new FileObserver(directory.getAbsolutePath()) {
@Override
public void onEvent(int event, String s) {
if (s != null
&& s.equals(mOutputFile.getName())
&& event == FileObserver.CLOSE_WRITE) {
outputFileWrittenLatch.countDown();
}
}
};
mFileObserver.startWatching();
}
private void tick() {
this.binding.timer.setText(TimeFrameUtils.formatTimePassed(mStartTime, true));
}
@Override
public void onClick(View view) {
switch (view.getId()) {
case R.id.cancel_button:
mHandler.removeCallbacks(mTickExecutor);
stopRecording(false);
setResult(RESULT_CANCELED);
finish();
break;
case R.id.share_button:
this.binding.shareButton.setEnabled(false);
this.binding.shareButton.setText(R.string.please_wait);
mHandler.removeCallbacks(mTickExecutor);
mHandler.postDelayed(() -> stopRecording(true), 500);
break;
}
}
}
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