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package com.android.calendar;
import android.app.Activity;
import android.app.AlertDialog;
import android.content.ActivityNotFoundException;
import android.content.ContentResolver;
import android.content.Context;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.Uri;
import android.os.AsyncTask;
import android.os.Bundle;
import android.provider.CalendarContract;
import android.text.TextUtils;
import android.widget.Toast;
import com.android.calendar.icalendar.Attendee;
import com.android.calendar.icalendar.IcalendarUtils;
import com.android.calendar.icalendar.VCalendar;
import com.android.calendar.icalendar.VEvent;
import java.io.File;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.LinkedList;
import java.util.TimeZone;
public class ImportActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
if (!isValidIntent()) {
Toast.makeText(this, R.string.cal_nothing_to_import, Toast.LENGTH_SHORT).show();
finish();
} else {
parseCalFile();
}
}
private long getLocalTimeFromString(String iCalDate) {
SimpleDateFormat format = new SimpleDateFormat("yyyyMMdd'T'HHmmss'Z'");
format.setTimeZone(TimeZone.getTimeZone("UTC"));
try {
format.parse(iCalDate);
format.setTimeZone(TimeZone.getDefault());
return format.getCalendar().getTimeInMillis();
} catch (ParseException e) {
e.printStackTrace();
}
return System.currentTimeMillis();
}
private void showErrorToast() {
Toast.makeText(this, R.string.cal_import_error_msg, Toast.LENGTH_SHORT).show();
finish();
}
private void parseCalFile() {
Uri uri = getIntent().getData();
VCalendar calendar = IcalendarUtils.readCalendarFromFile(this, uri);
if (calendar == null) {
showErrorToast();
return;
}
Intent calIntent = new Intent(Intent.ACTION_INSERT);
calIntent.setType("vnd.android.cursor.item/event");
LinkedList<VEvent> events = calendar.getAllEvents();
if (events == null) {
showErrorToast();
return;
}
VEvent firstEvent = calendar.getAllEvents().getFirst();
calIntent.putExtra(CalendarContract.Events.TITLE,
IcalendarUtils.uncleanseString(firstEvent.getProperty(VEvent.SUMMARY)));
calIntent.putExtra(CalendarContract.Events.EVENT_LOCATION,
IcalendarUtils.uncleanseString(firstEvent.getProperty(VEvent.LOCATION)));
calIntent.putExtra(CalendarContract.Events.DESCRIPTION,
IcalendarUtils.uncleanseString(firstEvent.getProperty(VEvent.DESCRIPTION)));
calIntent.putExtra(CalendarContract.Events.ORGANIZER,
IcalendarUtils.uncleanseString(firstEvent.getProperty(VEvent.ORGANIZER)));
if (firstEvent.mAttendees.size() > 0) {
StringBuilder builder = new StringBuilder();
for (Attendee attendee : firstEvent.mAttendees) {
builder.append(attendee.mEmail);
builder.append(",");
}
calIntent.putExtra(Intent.EXTRA_EMAIL, builder.toString());
}
String dtStart = firstEvent.getProperty(VEvent.DTSTART);
if (!TextUtils.isEmpty(dtStart)) {
calIntent.putExtra(CalendarContract.EXTRA_EVENT_BEGIN_TIME,
getLocalTimeFromString(dtStart));
}
String dtEnd = firstEvent.getProperty(VEvent.DTEND);
if (!TextUtils.isEmpty(dtEnd)) {
calIntent.putExtra(CalendarContract.EXTRA_EVENT_END_TIME,
getLocalTimeFromString(dtEnd));
}
try {
startActivity(calIntent);
} catch (ActivityNotFoundException e) {
// Oh well...
} finally {
finish();
}
}
private boolean isValidIntent() {
Intent intent = getIntent();
if (intent == null) {
return false;
}
Uri fileUri = intent.getData();
if (fileUri == null) {
return false;
}
String scheme = fileUri.getScheme();
return ContentResolver.SCHEME_CONTENT.equals(scheme)
|| ContentResolver.SCHEME_FILE.equals(scheme);
}
private static class ListFilesTask extends AsyncTask<Void, Void, String[]> {
private final Activity mActivity;
public ListFilesTask(Activity activity) {
mActivity = activity;
}
@Override
protected String[] doInBackground(Void... params) {
if (!hasThingsToImport(mActivity)) {
return null;
}
File folder = EventInfoFragment.EXPORT_SDCARD_DIRECTORY;
String[] result = null;
if (folder.exists()) {
result = folder.list();
}
return result;
}
@Override
protected void onPostExecute(final String[] files) {
if (files == null || files.length == 0) {
Toast.makeText(mActivity, R.string.cal_nothing_to_import,
Toast.LENGTH_SHORT).show();
return;
}
AlertDialog.Builder builder = new AlertDialog.Builder(mActivity);
builder.setTitle(R.string.cal_pick_ics)
.setItems(files, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int which) {
Intent i = new Intent(mActivity, ImportActivity.class);
File f = new File(EventInfoFragment.EXPORT_SDCARD_DIRECTORY,
files[which]);
i.setData(Uri.fromFile(f));
mActivity.startActivity(i);
}
});
builder.show();
}
}
public static void pickImportFile(Activity activity) {
new ListFilesTask(activity).execute();
}
public static boolean hasThingsToImport(Context context) {
File folder = EventInfoFragment.EXPORT_SDCARD_DIRECTORY;
return folder.exists() && folder.list().length > 0;
}
}
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