Add 'Search online' button if local search has no results (#6681)

app/src/main/java/de/danoeh/antennapod/adapter/HorizontalFeedListAdapter.java

@@ -2,7 +2,10 @@ package de.danoeh.antennapod.adapter;
 
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.Button;
 import androidx.annotation.NonNull;
+import androidx.annotation.StringRes;
+import androidx.cardview.widget.CardView;
 import androidx.recyclerview.widget.RecyclerView;
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.request.RequestOptions;
@@ -26,7 +29,8 @@ public class HorizontalFeedListAdapter extends RecyclerView.Adapter<HorizontalFe
     private final List<Feed> data = new ArrayList<>();
     private int dummyViews = 0;
     private Feed longPressedItem;
-
+    private @StringRes int endButtonText = 0;
+    private Runnable endButtonAction = null;
 
     public HorizontalFeedListAdapter(MainActivity mainActivity) {
         this.mainActivityRef = new WeakReference<>(mainActivity);
@@ -51,6 +55,15 @@ public class HorizontalFeedListAdapter extends RecyclerView.Adapter<HorizontalFe
 
     @Override
     public void onBindViewHolder(@NonNull Holder holder, int position) {
+        if (position == getItemCount() - 1 && endButtonAction != null) {
+            holder.cardView.setVisibility(View.GONE);
+            holder.actionButton.setVisibility(View.VISIBLE);
+            holder.actionButton.setText(endButtonText);
+            holder.actionButton.setOnClickListener(v -> endButtonAction.run());
+            return;
+        }
+        holder.cardView.setVisibility(View.VISIBLE);
+        holder.actionButton.setVisibility(View.GONE);
         if (position >= data.size()) {
             holder.itemView.setAlpha(0.1f);
             Glide.with(mainActivityRef.get()).clear(holder.imageView);
@@ -95,7 +108,7 @@ public class HorizontalFeedListAdapter extends RecyclerView.Adapter<HorizontalFe
 
     @Override
     public int getItemCount() {
-        return dummyViews + data.size();
+        return dummyViews + data.size() + ((endButtonAction == null) ? 0 : 1);
     }
 
     @Override
@@ -108,13 +121,23 @@ public class HorizontalFeedListAdapter extends RecyclerView.Adapter<HorizontalFe
         contextMenu.setHeaderTitle(longPressedItem.getTitle());
     }
 
+    public void setEndButton(@StringRes int text, Runnable action) {
+        endButtonAction = action;
+        endButtonText = text;
+        notifyDataSetChanged();
+    }
+
     static class Holder extends RecyclerView.ViewHolder {
         SquareImageView imageView;
+        CardView cardView;
+        Button actionButton;
 
         public Holder(@NonNull View itemView) {
             super(itemView);
             imageView = itemView.findViewById(R.id.discovery_cover);
             imageView.setDirection(SquareImageView.DIRECTION_HEIGHT);
+            actionButton = itemView.findViewById(R.id.actionButton);
+            cardView = itemView.findViewById(R.id.cardView);
         }
     }
 }

app/src/main/java/de/danoeh/antennapod/fragment/SearchFragment.java

@@ -2,6 +2,7 @@ package de.danoeh.antennapod.fragment;
 
 
 import android.content.Context;
+import android.content.Intent;
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
@@ -26,6 +27,7 @@ import com.google.android.material.chip.Chip;
 
 import de.danoeh.antennapod.R;
 import de.danoeh.antennapod.activity.MainActivity;
+import de.danoeh.antennapod.activity.OnlineFeedViewActivity;
 import de.danoeh.antennapod.adapter.EpisodeItemListAdapter;
 import de.danoeh.antennapod.adapter.HorizontalFeedListAdapter;
 import de.danoeh.antennapod.core.menuhandler.MenuItemUtils;
@@ -39,6 +41,7 @@ import de.danoeh.antennapod.model.feed.FeedItem;
 import de.danoeh.antennapod.core.storage.FeedSearcher;
 import de.danoeh.antennapod.core.util.FeedItemUtil;
 import de.danoeh.antennapod.menuhandler.FeedItemMenuHandler;
+import de.danoeh.antennapod.net.discovery.CombinedSearcher;
 import de.danoeh.antennapod.view.EmptyViewHandler;
 import de.danoeh.antennapod.view.EpisodeItemListRecyclerView;
 import de.danoeh.antennapod.view.LiftOnScrollListener;
@@ -334,6 +337,7 @@ public class SearchFragment extends Fragment {
         if (disposable != null) {
             disposable.dispose();
         }
+        adapterFeeds.setEndButton(R.string.search_online, this::searchOnline);
         chip.setVisibility((getArguments().getLong(ARG_FEED, 0) == 0) ? View.GONE : View.VISIBLE);
         disposable = Observable.fromCallable(this::performSearch)
                 .subscribeOn(Schedulers.io())
@@ -374,4 +378,19 @@ public class SearchFragment extends Fragment {
             imm.showSoftInput(view, 0);
         }
     }
+
+    private void searchOnline() {
+        searchView.clearFocus();
+        InputMethodManager in = (InputMethodManager) getActivity().getSystemService(Context.INPUT_METHOD_SERVICE);
+        in.hideSoftInputFromWindow(searchView.getWindowToken(), 0);
+        String query = searchView.getQuery().toString();
+        if (query.matches("http[s]?://.*")) {
+            Intent intent = new Intent(getActivity(), OnlineFeedViewActivity.class);
+            intent.putExtra(OnlineFeedViewActivity.ARG_FEEDURL, query);
+            startActivity(intent);
+            return;
+        }
+        ((MainActivity) getActivity()).loadChildFragment(
+                OnlineSearchFragment.newInstance(CombinedSearcher.class, query));
+    }
 }

app/src/main/res/layout/horizontal_feed_item.xml

@@ -11,6 +11,7 @@
     android:clipChildren="false">
 
     <androidx.cardview.widget.CardView
+        android:id="@+id/cardView"
         android:layout_width="wrap_content"
         android:layout_height="wrap_content"
         app:cardBackgroundColor="@color/non_square_icon_background"
@@ -30,4 +31,11 @@
 
     </androidx.cardview.widget.CardView>
 
+    <Button
+        android:id="@+id/actionButton"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:visibility="gone"
+        style="@style/Widget.Material3.Button.OutlinedButton" />
+
 </LinearLayout>

ui/i18n/src/main/res/values/strings.xml

@@ -545,6 +545,7 @@
     <string name="type_to_search">Type a query to search</string>
     <string name="search_label">Search</string>
     <string name="no_results_for_query">No results were found for \"%1$s\"</string>
+    <string name="search_online">Search online</string>
 
     <!-- Synchronization -->
     <string name="sync_status_started">Sync started</string>