Add L2tpIpsecPskEditor.

* Changes
  + Add L2tpIpsecPskEditor.java.
  + Save profile name in VpnEditor to be used in saveSecrets().

res/values/strings.xml

@@ -1894,6 +1894,11 @@ found in the list of installed applications.</string>
     <!-- Complete term -->
     <string name="vpn_l2tp_secret">L2TP secret</string>
 
+    <!-- Preference title -->
+    <string name="vpn_ipsec_presharedkey_title">Set IPSec pre-shared key</string>
+    <!-- Complete term -->
+    <string name="vpn_ipsec_presharedkey">IPSec pre-shared key</string>
+
     <!-- Preference title -->
     <string name="vpn_psk_title">Set IPSec pre-shared key</string>
     <!-- Complete term -->
@@ -1961,6 +1966,8 @@ found in the list of installed applications.</string>
     <string name="cstor_confirm_password">Confirm new password:</string>
     <!-- Description when user set up the storage for the very first time -->
     <string name="cstor_first_time_hint">You must set a password for credential storage before you can store secure certificates and other credentials in it.</string>
+    <string name="cstor_password_error">Passwords do not match.</string>
+    <string name="cstor_password_empty_error">Please fill up all the fields.</string>
 
     <!-- Sound settings screen, setting check box label -->
     <string name="emergency_tone_title">Emergency tone</string>

src/com/android/settings/vpn/L2tpIpsecPskEditor.java

@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2009 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.content.Context;
+import android.net.vpn.L2tpIpsecPskProfile;
+import android.preference.EditTextPreference;
+import android.preference.Preference;
+import android.preference.PreferenceGroup;
+
+/**
+ * The class for editing {@link L2tpIpsecPskProfile}.
+ */
+class L2tpIpsecPskEditor extends L2tpEditor {
+    private EditTextPreference mPresharedKey;
+
+    public L2tpIpsecPskEditor(L2tpIpsecPskProfile p) {
+        super(p);
+    }
+
+    @Override
+    protected void loadExtraPreferencesTo(PreferenceGroup subpanel) {
+        Context c = subpanel.getContext();
+        subpanel.addPreference(createPresharedKeyPreference(c));
+        super.loadExtraPreferencesTo(subpanel);
+    }
+
+    @Override
+    public String validate() {
+        String result = super.validate();
+
+        return ((result != null)
+                ? result
+                : validate(mPresharedKey, R.string.vpn_ipsec_presharedkey));
+    }
+
+    @Override
+    public void saveSecrets(String originalProfileName) {
+        L2tpIpsecPskProfile profile = (L2tpIpsecPskProfile) getProfile();
+        profile.getPresharedKey();
+        // TODO: fill up the implementation after keystore is available
+    }
+
+    private Preference createPresharedKeyPreference(Context c) {
+        final L2tpIpsecPskProfile profile = (L2tpIpsecPskProfile) getProfile();
+        mPresharedKey = createSecretPreference(c,
+                R.string.vpn_ipsec_presharedkey_title,
+                R.string.vpn_ipsec_presharedkey,
+                profile.getPresharedKey(),
+                new Preference.OnPreferenceChangeListener() {
+                    public boolean onPreferenceChange(
+                            Preference pref, Object newValue) {
+                        profile.setPresharedKey((String) newValue);
+                        setSecretSummary(mPresharedKey,
+                                R.string.vpn_ipsec_presharedkey,
+                                (String) newValue);
+                        return true;
+                    }
+                });
+        return mPresharedKey;
+    }
+}

src/com/android/settings/vpn/VpnEditor.java

@@ -22,6 +22,7 @@ import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.content.Intent;
 import android.net.vpn.L2tpIpsecProfile;
+import android.net.vpn.L2tpIpsecPskProfile;
 import android.net.vpn.L2tpProfile;
 import android.net.vpn.VpnProfile;
 import android.net.vpn.VpnType;
@@ -41,9 +42,11 @@ public class VpnEditor extends PreferenceActivity {
     private static final int MENU_SAVE = Menu.FIRST;
     private static final int MENU_CANCEL = Menu.FIRST + 1;
     private static final String KEY_PROFILE = "profile";
+    private static final String KEY_ORIGINAL_PROFILE_NAME = "orig_profile_name";
 
     private VpnProfileEditor mProfileEditor;
     private boolean mAddingProfile;
+    private String mOriginalProfileName;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
@@ -51,6 +54,9 @@ public class VpnEditor extends PreferenceActivity {
         VpnProfile p = (VpnProfile) ((savedInstanceState == null)
                 ? getIntent().getParcelableExtra(VpnSettings.KEY_VPN_PROFILE)
                 : savedInstanceState.getParcelable(KEY_PROFILE));
+        mOriginalProfileName = (savedInstanceState == null)
+                ? p.getName()
+                : savedInstanceState.getString(KEY_ORIGINAL_PROFILE_NAME);
         mProfileEditor = getEditor(p);
         mAddingProfile = TextUtils.isEmpty(p.getName());
 
@@ -65,6 +71,7 @@ public class VpnEditor extends PreferenceActivity {
         if (mProfileEditor == null) return;
 
         outState.putParcelable(KEY_PROFILE, getProfile());
+        outState.putString(KEY_ORIGINAL_PROFILE_NAME, mOriginalProfileName);
     }
 
     @Override
@@ -119,6 +126,7 @@ public class VpnEditor extends PreferenceActivity {
             return false;
         }
 
+        mProfileEditor.saveSecrets(mOriginalProfileName);
         setResult(getProfile());
         return true;
     }
@@ -136,6 +144,8 @@ public class VpnEditor extends PreferenceActivity {
                 return new L2tpIpsecEditor((L2tpIpsecProfile) p);
 
             case L2TP_IPSEC_PSK:
+                return new L2tpIpsecPskEditor((L2tpIpsecPskProfile) p);
+
             case L2TP:
                 return new L2tpEditor((L2tpProfile) p);