add Latest view to basic flavor

This is a quick hack to reuse the Latest view with a slightly simpler
layout.  It makes the "basic" flavor fully functional as an fdroid client.
The goal here is just to have something simpler with as little new code as
possible.  It is essential that the whitelabeling and "Light" aka "basic"
flavor does not increase the maintenance load.

closes fdroid/fdroidclient#48
fdroid/fdroidclient!692
fdroid/fdroidclient!695

app/src/basic/java/org/fdroid/fdroid/views/hiding/HidingManager.java

@@ -29,4 +29,9 @@ public class HidingManager {
     public static boolean isHidden(Context context) {
         return false;
     }
+
+    public static void showHideDialog(final Context context) {
+        throw new IllegalStateException("unimplemented");
+    }
+
 }

app/src/basic/java/org/fdroid/fdroid/views/main/MainViewController.java

@@ -48,8 +48,11 @@ class MainViewController extends RecyclerView.ViewHolder {
         this.frame = frame;
     }
 
+    /**
+     * @see WhatsNewViewBinder
+     */
     public void bindWhatsNewView() {
-        throw new IllegalStateException("unimplemented");
+        new WhatsNewViewBinder(activity, frame);
     }
 
     /**

app/src/basic/res/menu/main_activity_screens.xml

@@ -1,6 +1,11 @@
 <?xml version="1.0" encoding="utf-8"?>
 <menu xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto">
+    <item
+        android:title="@string/main_menu__latest_apps"
+        android:icon="@drawable/ic_latest"
+        app:showAsAction="ifRoom|withText"
+        android:id="@+id/whats_new" />
     <item
         android:title="@string/updates"
         android:icon="@drawable/ic_updates"

app/src/main/java/org/fdroid/fdroid/views/main/MainActivity.java

@@ -115,9 +115,10 @@ public class MainActivity extends AppCompatActivity implements BottomNavigationB
         updatesBadge = new TextBadgeItem().hide(false);
 
         bottomNavigation = (BottomNavigationBar) findViewById(R.id.bottom_navigation);
+        bottomNavigation
+                .addItem(new BottomNavigationItem(R.drawable.ic_latest, R.string.main_menu__latest_apps));
         if (BuildConfig.FLAVOR.startsWith("full")) {
             bottomNavigation
-                    .addItem(new BottomNavigationItem(R.drawable.ic_latest, R.string.main_menu__latest_apps))
                     .addItem(new BottomNavigationItem(R.drawable.ic_categories, R.string.main_menu__categories))
                     .addItem(new BottomNavigationItem(R.drawable.ic_nearby, R.string.main_menu__swap_nearby));
         }

app/src/main/java/org/fdroid/fdroid/views/whatsnew/WhatsNewAdapter.java

@@ -10,6 +10,7 @@ import android.support.v7.widget.GridLayoutManager;
 import android.support.v7.widget.RecyclerView;
 import android.view.View;
 import android.view.ViewGroup;
+import org.fdroid.fdroid.BuildConfig;
 import org.fdroid.fdroid.R;
 import org.fdroid.fdroid.data.App;
 import org.fdroid.fdroid.views.categories.AppCardController;
@@ -57,10 +58,19 @@ public class WhatsNewAdapter extends RecyclerView.Adapter<AppCardController> {
 
     @Override
     public int getItemViewType(int position) {
+        int relativePositionInCycle = position % 5;
+
+        if (BuildConfig.FLAVOR.startsWith("basic")) {
+            if (relativePositionInCycle > 0) {
+                return R.id.whats_new_small_tile;
+            } else {
+                return R.id.whats_new_regular_list;
+            }
+        }
+
         if (position == 0) {
             return R.id.whats_new_feature;
         } else {
-            int relativePositionInCycle = position % 5;
             switch (relativePositionInCycle) {
                 case 1:
                 case 2: