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package cgeo.geocaching.export;
import butterknife.ButterKnife;
import cgeo.geocaching.CgeoApplication;
import cgeo.geocaching.Geocache;
import cgeo.geocaching.R;
import cgeo.geocaching.activity.ActivityMixin;
import cgeo.geocaching.settings.Settings;
import cgeo.geocaching.utils.AsyncTaskWithProgress;
import cgeo.geocaching.utils.FileUtils;
import cgeo.geocaching.utils.Log;
import cgeo.geocaching.utils.ShareUtils;
import org.apache.commons.lang3.CharEncoding;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.Dialog;
import android.content.Context;
import android.content.DialogInterface;
import android.os.Build.VERSION;
import android.os.Build.VERSION_CODES;
import android.os.Environment;
import android.view.ContextThemeWrapper;
import android.view.View;
import android.widget.CheckBox;
import android.widget.TextView;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.OutputStreamWriter;
import java.text.SimpleDateFormat;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Date;
import java.util.List;
import java.util.Locale;
public class GpxExport extends AbstractExport {
public GpxExport() {
super(getString(R.string.export_gpx));
}
@Override
public void export(final List<Geocache> caches, final Activity activity) {
final String[] geocodes = getGeocodes(caches);
if (null == activity) {
// No activity given, so no user interaction possible.
// Start export with default parameters.
new ExportTask(null).execute(geocodes);
} else {
// Show configuration dialog
getExportDialog(geocodes, activity).show();
}
}
private Dialog getExportDialog(final String[] geocodes, final Activity activity) {
final AlertDialog.Builder builder = new AlertDialog.Builder(activity);
final Context themedContext;
if (Settings.isLightSkin() && VERSION.SDK_INT < VERSION_CODES.HONEYCOMB)
themedContext = new ContextThemeWrapper(activity, R.style.dark);
else
themedContext = activity;
final View layout = View.inflate(themedContext, R.layout.gpx_export_dialog, null);
builder.setView(layout);
final TextView text = ButterKnife.findById(layout, R.id.info);
text.setText(getString(R.string.export_gpx_info, Settings.getGpxExportDir()));
final CheckBox shareOption = ButterKnife.findById(layout, R.id.share);
shareOption.setChecked(Settings.getShareAfterExport());
shareOption.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(final View v) {
Settings.setShareAfterExport(shareOption.isChecked());
}
});
builder.setPositiveButton(R.string.export, new DialogInterface.OnClickListener() {
@Override
public void onClick(final DialogInterface dialog, final int which) {
dialog.dismiss();
new ExportTask(activity).execute(geocodes);
}
});
return builder.create();
}
private static String[] getGeocodes(final List<Geocache> caches) {
final ArrayList<String> allGeocodes = new ArrayList<>(caches.size());
for (final Geocache geocache : caches) {
allGeocodes.add(geocache.getGeocode());
}
return allGeocodes.toArray(new String[allGeocodes.size()]);
}
protected class ExportTask extends AsyncTaskWithProgress<String, File> {
private final Activity activity;
/**
* Instantiates and configures the task for exporting field notes.
*
* @param activity
* optional: Show a progress bar and toasts
*/
public ExportTask(final Activity activity) {
super(activity, getProgressTitle());
this.activity = activity;
}
private File getExportFile() {
final SimpleDateFormat fileNameDateFormat = new SimpleDateFormat("yyyy-MM-dd", Locale.US);
final Date now = new Date();
return FileUtils.getUniqueNamedFile(Settings.getGpxExportDir() + File.separatorChar + "export_" + fileNameDateFormat.format(now) + ".gpx");
}
@Override
protected File doInBackgroundInternal(final String[] geocodes) {
// quick check for being able to write the GPX file
if (!Environment.getExternalStorageState().equals(Environment.MEDIA_MOUNTED)) {
return null;
}
final List<String> allGeocodes = new ArrayList<>(Arrays.asList(geocodes));
setMessage(CgeoApplication.getInstance().getResources().getQuantityString(R.plurals.cache_counts, allGeocodes.size(), allGeocodes.size()));
final File exportFile = getExportFile();
BufferedWriter writer = null;
try {
final File exportLocation = new File(Settings.getGpxExportDir());
FileUtils.mkdirs(exportLocation);
writer = new BufferedWriter(new OutputStreamWriter(new FileOutputStream(exportFile), CharEncoding.UTF_8));
new GpxSerializer().writeGPX(allGeocodes, writer, new GpxSerializer.ProgressListener() {
@Override
public void publishProgress(final int countExported) {
ExportTask.this.publishProgress(countExported);
}
});
} catch (final IOException e) {
Log.e("GpxExport.ExportTask export", e);
if (writer != null) {
try {
writer.close();
} catch (final IOException e1) {
// Ignore double error
}
}
// delete partial GPX file on error
if (exportFile.exists()) {
FileUtils.deleteIgnoringFailure(exportFile);
}
return null;
}
return exportFile;
}
@Override
protected void onPostExecuteInternal(final File exportFile) {
if (null != activity) {
if (exportFile != null) {
ActivityMixin.showToast(activity, getName() + ' ' + getString(R.string.export_exportedto) + ": " + exportFile.toString());
if (Settings.getShareAfterExport()) {
ShareUtils.share(activity, exportFile, "application/xml", R.string.export_gpx_to);
}
} else {
ActivityMixin.showToast(activity, getString(R.string.export_failed));
}
}
}
}
}
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