ApplicationSettingsActivity.java

/*
   Application Settings Activity
 
   Copyright 2013 Thincast Technologies GmbH, Author: Martin Fleisz
 
   This Source Code Form is subject to the terms of the Mozilla Public License, v. 2.0.
   If a copy of the MPL was not distributed with this file, You can obtain one at
   http://mozilla.org/MPL/2.0/.
*/
 
package com.freerdp.freerdpcore.presentation;
 
import android.annotation.TargetApi;
import android.content.Context;
import android.content.DialogInterface;
import android.content.SharedPreferences;
import android.content.res.Configuration;
import android.os.Build;
import android.os.Bundle;
import android.preference.EditTextPreference;
import android.preference.Preference;
import android.preference.PreferenceFragment;
import android.preference.PreferenceManager;
import android.preference.PreferenceScreen;
import androidx.appcompat.app.AlertDialog;
import android.widget.Toast;
 
import com.freerdp.freerdpcore.R;
import com.freerdp.freerdpcore.utils.AppCompatPreferenceActivity;
 
import java.io.File;
import java.util.List;
import java.util.UUID;
 
public class ApplicationSettingsActivity extends AppCompatPreferenceActivity
{
  private static boolean isXLargeTablet(Context context)
  {
    return (context.getResources().getConfiguration().screenLayout &
            Configuration.SCREENLAYOUT_SIZE_MASK) >= Configuration.SCREENLAYOUT_SIZE_XLARGE;
  }
 
  @Override protected void onCreate(Bundle savedInstanceState)
  {
    super.onCreate(savedInstanceState);
    setupActionBar();
  }
 
  private void setupActionBar()
  {
    android.app.ActionBar actionBar = getActionBar();
    if (actionBar != null)
    {
      actionBar.setDisplayHomeAsUpEnabled(true);
    }
  }
 
  @Override public boolean onIsMultiPane()
  {
    return isXLargeTablet(this);
  }
 
  @Override
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public void onBuildHeaders(List<Header> target)
  {
    loadHeadersFromResource(R.xml.settings_app_headers, target);
  }
 
  protected boolean isValidFragment(String fragmentName)
  {
    return PreferenceFragment.class.getName().equals(fragmentName) ||
        ClientPreferenceFragment.class.getName().equals(fragmentName) ||
        UiPreferenceFragment.class.getName().equals(fragmentName) ||
        PowerPreferenceFragment.class.getName().equals(fragmentName) ||
        SecurityPreferenceFragment.class.getName().equals(fragmentName);
  }
 
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public static class ClientPreferenceFragment
      extends PreferenceFragment implements SharedPreferences.OnSharedPreferenceChangeListener
  {
    @Override public void onCreate(Bundle savedInstanceState)
    {
      super.onCreate(savedInstanceState);
      addPreferencesFromResource(R.xml.settings_app_client);
      SharedPreferences preferences = get(getActivity());
      preferences.registerOnSharedPreferenceChangeListener(this);
    }
 
    @Override
    public void onSharedPreferenceChanged(SharedPreferences sharedPreferences, String key)
    {
      if (isAdded())
      {
        final String clientNameKey = getString(R.string.preference_key_client_name);
 
        get(getActivity());
        if (key.equals(clientNameKey))
        {
          final String clientNameValue = sharedPreferences.getString(clientNameKey, "");
          EditTextPreference pref = (EditTextPreference)findPreference(clientNameKey);
          pref.setText(clientNameValue);
        }
      }
    }
  }
 
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public static class UiPreferenceFragment extends PreferenceFragment
  {
    @Override public void onCreate(Bundle savedInstanceState)
    {
      super.onCreate(savedInstanceState);
      addPreferencesFromResource(R.xml.settings_app_ui);
    }
  }
 
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public static class PowerPreferenceFragment extends PreferenceFragment
  {
    @Override public void onCreate(Bundle savedInstanceState)
    {
      super.onCreate(savedInstanceState);
      addPreferencesFromResource(R.xml.settings_app_power);
    }
  }
 
  @TargetApi(Build.VERSION_CODES.HONEYCOMB)
  public static class SecurityPreferenceFragment extends PreferenceFragment
  {
    @Override public void onCreate(Bundle savedInstanceState)
    {
      super.onCreate(savedInstanceState);
      addPreferencesFromResource(R.xml.settings_app_security);
    }
 
    @Override
    public boolean onPreferenceTreeClick(PreferenceScreen preferenceScreen,
                                         Preference preference)
    {
      final String clear =
          getString(R.string.preference_key_security_clear_certificate_cache);
      if (preference.getKey().equals(clear))
      {
        showDialog();
        return true;
      }
      else
      {
        return super.onPreferenceTreeClick(preferenceScreen, preference);
      }
    }
 
    private void showDialog()
    {
      new AlertDialog.Builder(getActivity())
          .setTitle(R.string.dlg_title_clear_cert_cache)
          .setMessage(R.string.dlg_msg_clear_cert_cache)
          .setPositiveButton(android.R.string.ok,
                             new DialogInterface.OnClickListener() {
                               @Override
                               public void onClick(DialogInterface dialog, int which)
                               {
                                 clearCertificateCache();
                                 dialog.dismiss();
                               }
                             })
          .setNegativeButton(android.R.string.cancel,
                             new DialogInterface.OnClickListener() {
                               @Override
                               public void onClick(DialogInterface dialog, int which)
                               {
                                 dialog.dismiss();
                               }
                             })
          .setIcon(android.R.drawable.ic_delete)
          .show();
    }
 
    private boolean deleteDirectory(File dir)
    {
      if (dir.isDirectory())
      {
        String[] children = dir.list();
        for (String file : children)
        {
          if (!deleteDirectory(new File(dir, file)))
            return false;
        }
      }
      return dir.delete();
    }
 
    private void clearCertificateCache()
    {
      Context context = getActivity();
      if ((new File(context.getFilesDir() + "/.freerdp")).exists())
      {
        if (deleteDirectory(new File(context.getFilesDir() + "/.freerdp")))
          Toast.makeText(context, R.string.info_reset_success, Toast.LENGTH_LONG).show();
        else
          Toast.makeText(context, R.string.info_reset_failed, Toast.LENGTH_LONG).show();
      }
      else
        Toast.makeText(context, R.string.info_reset_success, Toast.LENGTH_LONG).show();
    }
  }
 
  public static SharedPreferences get(Context context)
  {
    Context appContext = context.getApplicationContext();
    PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_client, false);
    PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_power, false);
    PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_security, false);
    PreferenceManager.setDefaultValues(appContext, R.xml.settings_app_ui, false);
    SharedPreferences preferences = PreferenceManager.getDefaultSharedPreferences(appContext);
 
    final String key = context.getString(R.string.preference_key_client_name);
    final String value = preferences.getString(key, "");
    if (value.isEmpty())
    {
      final String android_id = UUID.randomUUID().toString();
      final String defaultValue = context.getString(R.string.preference_default_client_name);
      final String name = defaultValue + "-" + android_id;
      preferences.edit().putString(key, name.substring(0, 31)).apply();
    }
 
    return preferences;
  }
 
  public static int getDisconnectTimeout(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getInt(
        context.getString(R.string.preference_key_power_disconnect_timeout), 0);
  }
 
  public static boolean getHideStatusBar(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(context.getString(R.string.preference_key_ui_hide_status_bar),
                                  false);
  }
 
  public static boolean getHideActionBar(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(context.getString(R.string.preference_key_ui_hide_action_bar),
                                  false);
  }
 
  public static boolean getUseBackAsAltf4(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(
        context.getString(R.string.preference_key_ui_use_back_as_altf4), true);
  }
 
  public static boolean getAcceptAllCertificates(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(
        context.getString(R.string.preference_key_accept_certificates), false);
  }
 
  public static boolean getHideZoomControls(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(
        context.getString(R.string.preference_key_ui_hide_zoom_controls), false);
  }
 
  public static boolean getSwapMouseButtons(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(
        context.getString(R.string.preference_key_ui_swap_mouse_buttons), false);
  }
 
  public static boolean getInvertScrolling(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(
        context.getString(R.string.preference_key_ui_invert_scrolling), false);
  }
 
  public static boolean getAskOnExit(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(context.getString(R.string.preference_key_ui_ask_on_exit),
                                  false);
  }
 
  public static boolean getAutoScrollTouchPointer(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getBoolean(
        context.getString(R.string.preference_key_ui_auto_scroll_touchpointer), false);
  }
 
  public static String getClientName(Context context)
  {
    SharedPreferences preferences = get(context);
    return preferences.getString(context.getString(R.string.preference_key_client_name), "");
  }
}