Java tutorial
/** * Copyright (C) 2013- Iordan Iordanov * * This is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; either version 3 of the License, or * (at your option) any later version. * * This software is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this software; if not, write to the Free Software * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, * USA. */ package com.undatech.opaque.dialogs; import java.io.BufferedReader; import java.io.File; import java.io.FileNotFoundException; import java.io.FileReader; import java.io.IOException; import com.undatech.opaque.ConnectionSettings; import com.undatech.opaque.R; import android.app.Activity; import android.app.Dialog; import android.content.Context; import android.content.DialogInterface; import android.os.Bundle; import android.os.Environment; import android.support.v4.app.DialogFragment; import android.view.LayoutInflater; import android.view.View; import android.view.ViewGroup; import android.view.WindowManager; import android.widget.Button; import android.widget.EditText; import android.widget.Toast; import android.widget.LinearLayout.LayoutParams; public class ManageCustomCaFragment extends DialogFragment { public static String TAG = "ManageCustomCaFragment"; public static int TYPE_OVIRT = 0; public static int TYPE_SPICE = 1; public interface OnFragmentDismissedListener { public void onFragmentDismissed(ConnectionSettings currentConnection); } private OnFragmentDismissedListener dismissalListener; private int caPurpose; private ConnectionSettings currentConnection; private EditText caCertPath; private EditText caCert; private Button importButton; private Button helpButton; public ManageCustomCaFragment() { } public void setOnFragmentDismissedListener(OnFragmentDismissedListener dismissalListener) { this.dismissalListener = dismissalListener; } public static ManageCustomCaFragment newInstance(int caPurpose, ConnectionSettings currentConnection) { ManageCustomCaFragment f = new ManageCustomCaFragment(); // Supply the CA purpose as an argument. Bundle args = new Bundle(); args.putInt("caPurpose", caPurpose); args.putSerializable("currentConnection", currentConnection); f.setArguments(args); return f; } @Override public void onAttach(Activity activity) { super.onAttach(activity); try { dismissalListener = (OnFragmentDismissedListener) activity; android.util.Log.e(TAG, "onAttach: assigning OnFragmentDismissedListener"); } catch (ClassCastException e) { throw new ClassCastException(activity.toString() + " must implement OnFragmentDismissedListener"); } } @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); caPurpose = getArguments().getInt("caPurpose"); currentConnection = (ConnectionSettings) getArguments().getSerializable("currentConnection"); } @Override public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) { View v = inflater.inflate(R.layout.manage_custom_ca, container, false); // Set title for this dialog getDialog().setTitle(R.string.manage_custom_ca_title); caCert = (EditText) v.findViewById(R.id.caCert); caCertPath = (EditText) v.findViewById(R.id.caCertPath); // Set up the import button. importButton = (Button) v.findViewById(R.id.importButton); importButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { importCaCert(); } }); // Set up the help button. helpButton = (Button) v.findViewById(R.id.helpButton); helpButton.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { //TODO: Show help } }); // Set the widgets' state appropriately. setWidgetStateAppropriately(); return v; } private void importCaCert() { Context context = getActivity(); File file = new File(caCertPath.getText().toString()); FileReader freader; try { freader = new FileReader(file); BufferedReader reader = new BufferedReader(freader); StringBuffer buf = new StringBuffer(); String line = null; do { try { line = reader.readLine(); if (line != null) buf.append(line + '\n'); } catch (IOException e) { Toast.makeText(context, R.string.ca_file_error_reading, Toast.LENGTH_LONG).show(); } } while (line != null); caCert.setText(buf.toString()); } catch (FileNotFoundException e) { Toast.makeText(context, R.string.ca_file_not_found, Toast.LENGTH_LONG).show(); } } private void setWidgetStateAppropriately() { if (caPurpose == ManageCustomCaFragment.TYPE_OVIRT) { caCert.setText(currentConnection.getOvirtCaData()); caCertPath.setText(getExternalSDCardDirectory()); } } @Override public void onDismiss(DialogInterface dialog) { android.util.Log.e(TAG, "dismiss: sending back data to Activity"); // Depending on the value of caPurpose, assign the certs in currentConnection. if (caPurpose == ManageCustomCaFragment.TYPE_OVIRT) { android.util.Log.e(TAG, "Setting custom oVirt CA"); currentConnection.setOvirtCaData(caCert.getText().toString()); } dismissalListener.onFragmentDismissed(currentConnection); } public String getExternalSDCardDirectory() { File dir = Environment.getExternalStorageDirectory(); return dir.getAbsolutePath() + "/"; } }