ProfileEdit: Add empty activity/fragment

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

app/src/main/AndroidManifest.xml

@@ -16,6 +16,9 @@
             android:name=".ProfileDetailActivity"
             android:label=""
             android:parentActivityName=".ProfileListActivity" />
+        <activity
+            android:name=".ProfileEditActivity"
+            android:label="@string/edit_activity_title" />
         <activity android:name=".ProfileListActivity">
             <intent-filter>
                 <action android:name="android.intent.action.MAIN" />

app/src/main/java/com/wireguard/android/ProfileActivity.java

@@ -13,6 +13,7 @@ abstract class ProfileActivity extends ServiceClientActivity<ProfileServiceInter
     public static final String KEY_IS_EDITING = "is_editing";
     public static final String KEY_PROFILE_NAME = "profile_name";
     protected static final String TAG_DETAIL = "detail";
+    protected static final String TAG_EDIT = "edit";
     protected static final String TAG_LIST = "list";
     protected static final String TAG_PLACEHOLDER = "placeholder";
 

app/src/main/java/com/wireguard/android/ProfileEditActivity.java

@@ -0,0 +1,19 @@
+package com.wireguard.android;
+
+import android.view.MenuItem;
+
+/**
+ * Activity that allows editing a single WireGuard profile.
+ */
+
+public class ProfileEditActivity extends ProfileActivity {
+    @Override
+    public void onMenuEdit(MenuItem item) {
+        throw new IllegalStateException();
+    }
+
+    @Override
+    public void onMenuSave(MenuItem item) {
+
+    }
+}

app/src/main/java/com/wireguard/android/ProfileEditFragment.java

@@ -0,0 +1,8 @@
+package com.wireguard.android;
+
+/**
+ * Fragment for editing a WireGuard profile.
+ */
+
+public class ProfileEditFragment extends ProfileFragment {
+}

app/src/main/res/values/strings.xml

@@ -4,6 +4,7 @@
     <string name="connected">Connected</string>
     <string name="disconnected">Disconnected</string>
     <string name="edit">Edit</string>
+    <string name="edit_activity_title">Edit WireGuard Profile</string>
     <string name="placeholder_text">No profile selected</string>
     <string name="profile_name">Profile name</string>
     <string name="public_key">Public key</string>