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/*
* Copyright (C) 2007 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.android.settings.vpn;
import com.android.settings.R;
import android.app.AlertDialog;
import android.content.DialogInterface;
import android.content.Intent;
import android.net.vpn.L2tpIpsecProfile;
import android.net.vpn.SingleServerProfile;
import android.net.vpn.VpnProfile;
import android.net.vpn.VpnType;
import android.os.Bundle;
import android.os.Parcelable;
import android.preference.EditTextPreference;
import android.preference.Preference;
import android.preference.PreferenceActivity;
import android.preference.PreferenceGroup;
import android.view.Menu;
import android.view.MenuItem;
/**
* The activity class for editing a new or existing VPN profile.
*/
public class VpnEditor extends PreferenceActivity {
private static final String TAG = VpnEditor.class.getSimpleName();
private static final int MENU_SAVE = Menu.FIRST;
private static final int MENU_CANCEL = Menu.FIRST + 1;
private EditTextPreference mName;
private VpnProfileEditor mProfileEditor;
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// Loads the XML preferences file
addPreferencesFromResource(R.xml.vpn_edit);
mName = (EditTextPreference) findPreference("vpn_name");
mName.setOnPreferenceChangeListener(
new Preference.OnPreferenceChangeListener() {
public boolean onPreferenceChange(
Preference pref, Object newValue) {
setName((String) newValue);
return true;
}
});
if (savedInstanceState == null) {
VpnProfile p = getIntent().getParcelableExtra(
VpnSettings.KEY_VPN_PROFILE);
initViewFor(p);
}
}
@Override
public boolean onCreateOptionsMenu(Menu menu) {
super.onCreateOptionsMenu(menu);
menu.add(0, MENU_SAVE, 0, R.string.vpn_menu_save)
.setIcon(android.R.drawable.ic_menu_save);
menu.add(0, MENU_CANCEL, 0, R.string.vpn_menu_cancel)
.setIcon(android.R.drawable.ic_menu_close_clear_cancel);
return true;
}
@Override
public boolean onOptionsItemSelected(MenuItem item) {
switch (item.getItemId()) {
case MENU_SAVE:
if (validateAndSetResult()) {
finish();
}
return true;
case MENU_CANCEL:
showCancellationConfirmDialog();
return true;
}
return super.onOptionsItemSelected(item);
}
private void initViewFor(VpnProfile profile) {
VpnProfileEditor editor = getEditor(profile);
VpnType type = profile.getType();
PreferenceGroup subsettings = getPreferenceScreen();
setTitle(profile);
setName(profile.getName());
editor.loadPreferencesTo(subsettings);
mProfileEditor = editor;
}
private void setTitle(VpnProfile profile) {
if (Util.isNullOrEmpty(profile.getName())) {
setTitle(String.format(getString(R.string.vpn_edit_title_add),
profile.getType().getDisplayName()));
} else {
setTitle(String.format(getString(R.string.vpn_edit_title_edit),
profile.getType().getDisplayName()));
}
}
private void setName(String newName) {
newName = (newName == null) ? "" : newName.trim();
mName.setText(newName);
mName.setSummary(Util.isNullOrEmpty(newName)
? getString(R.string.vpn_name_summary)
: newName);
}
/**
* Checks the validity of the inputs and set the profile as result if valid.
* @return true if the result is successfully set
*/
private boolean validateAndSetResult() {
String errorMsg = null;
if (Util.isNullOrEmpty(mName.getText())) {
errorMsg = getString(R.string.vpn_error_name_empty);
} else {
errorMsg = mProfileEditor.validate(this);
}
if (errorMsg != null) {
Util.showErrorMessage(this, errorMsg);
return false;
}
setResult(mProfileEditor.getProfile());
return true;
}
private void setResult(VpnProfile p) {
p.setName(mName.getText());
p.setId(Util.base64Encode(p.getName().getBytes()));
Intent intent = new Intent(this, VpnSettings.class);
intent.putExtra(VpnSettings.KEY_VPN_PROFILE, (Parcelable) p);
setResult(RESULT_OK, intent);
}
private VpnProfileEditor getEditor(VpnProfile p) {
if (p instanceof L2tpIpsecProfile) {
return new L2tpIpsecEditor((L2tpIpsecProfile) p);
} else {
return new VpnProfileEditor(p);
}
}
private void showCancellationConfirmDialog() {
new AlertDialog.Builder(this)
.setTitle(R.string.vpn_error_title)
.setMessage(R.string.vpn_confirm_profile_cancellation)
.setPositiveButton(R.string.vpn_yes_button,
new DialogInterface.OnClickListener() {
public void onClick(DialogInterface dialog, int w) {
finish();
}
})
.setNegativeButton(R.string.vpn_mistake_button, null)
.show();
}
}
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