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"); } } }