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package se.leap.leapclient;
import se.leap.leapclient.R;
import android.app.Activity;
import android.app.AlertDialog;
import android.app.DialogFragment;
import android.content.DialogInterface;
import android.os.Bundle;
import android.view.LayoutInflater;
import android.view.View;
import android.widget.EditText;
import android.widget.Toast;
/**
* Implements the log in dialog, currently without progress dialog.
*
* It returns to the previous fragment when finished, and sends username and password to the authenticate method.
*
* It also notifies the user if the password is not valid.
*
* @author parmegv
*
*/
public class LogInDialog extends DialogFragment {
public AlertDialog onCreateDialog(Bundle savedInstanceState) {
AlertDialog.Builder builder = new AlertDialog.Builder(getActivity());
LayoutInflater inflater = getActivity().getLayoutInflater();
View log_in_dialog_view = inflater.inflate(R.layout.log_in_dialog, null);
final EditText username_field = (EditText)log_in_dialog_view.findViewById(R.id.username_entered);
final EditText password_field = (EditText)log_in_dialog_view.findViewById(R.id.password_entered);
builder.setView(log_in_dialog_view)
.setPositiveButton(R.string.login_button, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
String username = username_field.getText().toString().trim();
String password = password_field.getText().toString().trim();
if(wellFormedPassword(password)) {
interface_with_Dashboard.authenticate(username, password);
} else {
password_field.setText("");
Toast.makeText(getActivity().getApplicationContext(), R.string.not_valid_password_message, Toast.LENGTH_LONG).show();
}
}
})
.setNegativeButton(R.string.cancel, new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int id) {
dialog.cancel();
}
});
return builder.create();
}
/**
* Validates a password
* @param entered_password
* @return true if the entered password length is greater or equal to eight (8).
*/
private boolean wellFormedPassword(String entered_password) {
return entered_password.length() >= 8;
}
/**
* Interface used to communicate LogInDialog with Dashboard.
*
* @author parmegv
*
*/
public interface LogInDialogInterface {
/**
* Starts authentication process.
* @param username
* @param password
*/
public void authenticate(String username, String password);
}
LogInDialogInterface interface_with_Dashboard;
/**
* @return a new instance of this DialogFragment.
*/
public static DialogFragment newInstance() {
LogInDialog dialog_fragment = new LogInDialog();
return dialog_fragment;
}
@Override
public void onAttach(Activity activity) {
super.onAttach(activity);
try {
interface_with_Dashboard = (LogInDialogInterface) activity;
} catch (ClassCastException e) {
throw new ClassCastException(activity.toString()
+ " must implement LogInDialogListener");
}
}
}
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