Feed group tab

app/src/main/java/org/schabi/newpipe/local/feed/FeedFragment.kt

@@ -269,7 +269,12 @@ class FeedFragment : BaseStateFragment<FeedState>() {
 
     override fun onDestroyOptionsMenu() {
         super.onDestroyOptionsMenu()
-        activity?.supportActionBar?.subtitle = null
+        if (
+            (groupName != "") &&
+            (activity?.supportActionBar?.subtitle == groupName)
+        ) {
+            activity?.supportActionBar?.subtitle = null
+        }
     }
 
     override fun onDestroy() {
@@ -281,7 +286,13 @@ class FeedFragment : BaseStateFragment<FeedState>() {
         }
 
         super.onDestroy()
-        activity?.supportActionBar?.subtitle = null
+
+        if (
+            (groupName != "") &&
+            (activity?.supportActionBar?.subtitle == groupName)
+        ) {
+            activity?.supportActionBar?.subtitle = null
+        }
     }
 
     override fun onDestroyView() {

app/src/main/java/org/schabi/newpipe/settings/SelectFeedGroupFragment.java

@@ -0,0 +1,214 @@
+package org.schabi.newpipe.settings;
+
+import android.content.DialogInterface;
+import android.os.Bundle;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.ProgressBar;
+import android.widget.TextView;
+
+import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
+import androidx.fragment.app.DialogFragment;
+import androidx.recyclerview.widget.LinearLayoutManager;
+import androidx.recyclerview.widget.RecyclerView;
+
+import org.schabi.newpipe.NewPipeDatabase;
+import org.schabi.newpipe.R;
+import org.schabi.newpipe.database.AppDatabase;
+import org.schabi.newpipe.database.feed.model.FeedGroupEntity;
+import org.schabi.newpipe.error.ErrorUtil;
+import org.schabi.newpipe.util.ThemeHelper;
+
+import java.util.List;
+import java.util.Vector;
+
+import io.reactivex.rxjava3.android.schedulers.AndroidSchedulers;
+import io.reactivex.rxjava3.core.Observer;
+import io.reactivex.rxjava3.disposables.Disposable;
+import io.reactivex.rxjava3.schedulers.Schedulers;
+
+/**
+ * Created by Christian Schabesberger on 26.09.17.
+ * SelectChannelFragment.java is part of NewPipe.
+ * <p>
+ * NewPipe is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ * </p>
+ * <p>
+ * NewPipe is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ * </p>
+ * <p>
+ * You should have received a copy of the GNU General Public License
+ * along with NewPipe.  If not, see <http://www.gnu.org/licenses/>.
+ * </p>
+ */
+
+public class SelectFeedGroupFragment extends DialogFragment {
+
+    private OnSelectedListener onSelectedListener = null;
+    private OnCancelListener onCancelListener = null;
+
+    private ProgressBar progressBar;
+    private TextView emptyView;
+    private RecyclerView recyclerView;
+
+    private List<FeedGroupEntity> feedGroups = new Vector<>();
+
+    public void setOnSelectedListener(final OnSelectedListener listener) {
+        onSelectedListener = listener;
+    }
+
+    public void setOnCancelListener(final OnCancelListener listener) {
+        onCancelListener = listener;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Init
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void onCreate(@Nullable final Bundle savedInstanceState) {
+        super.onCreate(savedInstanceState);
+        setStyle(STYLE_NO_TITLE, ThemeHelper.getMinWidthDialogTheme(requireContext()));
+    }
+
+    @Override
+    public View onCreateView(@NonNull final LayoutInflater inflater, final ViewGroup container,
+                             final Bundle savedInstanceState) {
+        final View v = inflater.inflate(R.layout.select_feed_group_fragment, container, false);
+        recyclerView = v.findViewById(R.id.items_list);
+        recyclerView.setLayoutManager(new LinearLayoutManager(getContext()));
+        final SelectFeedGroupAdapter feedGroupAdapter = new SelectFeedGroupAdapter();
+        recyclerView.setAdapter(feedGroupAdapter);
+
+        progressBar = v.findViewById(R.id.progressBar);
+        emptyView = v.findViewById(R.id.empty_state_view);
+        progressBar.setVisibility(View.VISIBLE);
+        recyclerView.setVisibility(View.GONE);
+        emptyView.setVisibility(View.GONE);
+
+
+        final AppDatabase database = NewPipeDatabase.getInstance(requireContext());
+        database.feedGroupDAO().getAll().toObservable()
+                .subscribeOn(Schedulers.io())
+                .observeOn(AndroidSchedulers.mainThread())
+                .subscribe(getFeedGroupObserver());
+
+        return v;
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Handle actions
+    //////////////////////////////////////////////////////////////////////////*/
+
+    @Override
+    public void onCancel(@NonNull final DialogInterface dialogInterface) {
+        super.onCancel(dialogInterface);
+        if (onCancelListener != null) {
+            onCancelListener.onCancel();
+        }
+    }
+
+    private void clickedItem(final int position) {
+        if (onSelectedListener != null) {
+            final FeedGroupEntity entry = feedGroups.get(position);
+            onSelectedListener
+                    .onFeedGroupSelected(entry.getUid(), entry.getName(),
+                            entry.getIcon().getDrawableResource());
+        }
+        dismiss();
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Item handling
+    //////////////////////////////////////////////////////////////////////////*/
+
+    private void displayFeedGroups(final List<FeedGroupEntity> newFeedGroups) {
+        this.feedGroups = newFeedGroups;
+        progressBar.setVisibility(View.GONE);
+        if (newFeedGroups.isEmpty()) {
+            emptyView.setVisibility(View.VISIBLE);
+            return;
+        }
+        recyclerView.setVisibility(View.VISIBLE);
+
+    }
+
+    private Observer<List<FeedGroupEntity>> getFeedGroupObserver() {
+        return new Observer<List<FeedGroupEntity>>() {
+            @Override
+            public void onSubscribe(@NonNull final Disposable disposable) { }
+
+            @Override
+            public void onNext(@NonNull final List<FeedGroupEntity> newGroups) {
+                displayFeedGroups(newGroups);
+            }
+
+            @Override
+            public void onError(@NonNull final Throwable exception) {
+                ErrorUtil.showUiErrorSnackbar(SelectFeedGroupFragment.this,
+                        "Loading Feed Groups", exception);
+            }
+
+            @Override
+            public void onComplete() { }
+        };
+    }
+
+    /*//////////////////////////////////////////////////////////////////////////
+    // Interfaces
+    //////////////////////////////////////////////////////////////////////////*/
+
+    public interface OnSelectedListener {
+        void onFeedGroupSelected(Long groupId, String name, int icon);
+    }
+
+    public interface OnCancelListener {
+        void onCancel();
+    }
+
+    private class SelectFeedGroupAdapter
+            extends RecyclerView.Adapter<SelectFeedGroupAdapter.SelectFeedGroupItemHolder> {
+        @NonNull
+        @Override
+        public SelectFeedGroupItemHolder onCreateViewHolder(final ViewGroup parent,
+                                                          final int viewType) {
+            final View item = LayoutInflater.from(parent.getContext())
+                    .inflate(R.layout.select_feed_group_item, parent, false);
+            return new SelectFeedGroupItemHolder(item);
+        }
+
+        @Override
+        public void onBindViewHolder(final SelectFeedGroupItemHolder holder, final int position) {
+            final FeedGroupEntity entry = feedGroups.get(position);
+            holder.titleView.setText(entry.getName());
+            holder.view.setOnClickListener(view -> clickedItem(position));
+            holder.thumbnailView.setImageResource(entry.getIcon().getDrawableResource());
+        }
+
+        @Override
+        public int getItemCount() {
+            return feedGroups.size();
+        }
+
+        public class SelectFeedGroupItemHolder extends RecyclerView.ViewHolder {
+            public final View view;
+            final ImageView thumbnailView;
+            final TextView titleView;
+            SelectFeedGroupItemHolder(final View v) {
+                super(v);
+                this.view = v;
+                thumbnailView = v.findViewById(R.id.itemThumbnailView);
+                titleView = v.findViewById(R.id.itemTitleView);
+            }
+        }
+    }
+}

app/src/main/java/org/schabi/newpipe/settings/tabs/ChooseTabsFragment.java

@@ -34,6 +34,7 @@
 import org.schabi.newpipe.settings.SelectChannelFragment;
 import org.schabi.newpipe.settings.SelectKioskFragment;
 import org.schabi.newpipe.settings.SelectPlaylistFragment;
+import org.schabi.newpipe.settings.SelectFeedGroupFragment;
 import org.schabi.newpipe.settings.tabs.AddTabDialog.ChooseTabListItem;
 import org.schabi.newpipe.util.ThemeHelper;
 
@@ -203,6 +204,14 @@ public void onRemotePlaylistSelected(
                         });
                 selectPlaylistFragment.show(getParentFragmentManager(), "select_playlist");
                 return;
+            case FEEDGROUP:
+                final SelectFeedGroupFragment selectFeedGroupFragment =
+                        new SelectFeedGroupFragment();
+                selectFeedGroupFragment.setOnSelectedListener(
+                        (groupId, name, iconId) ->
+                                addTab(new Tab.FeedGroupTab(groupId, name, iconId)));
+                selectFeedGroupFragment.show(getParentFragmentManager(), "select_feed_group");
+                return;
             default:
                 addTab(type.getTab());
                 break;
@@ -244,6 +253,11 @@ private ChooseTabListItem[] getAvailableTabs(final Context context) {
                             getString(R.string.playlist_page_summary),
                             tab.getTabIconRes(context)));
                     break;
+                case FEEDGROUP:
+                    returnList.add(new ChooseTabListItem(tab.getTabId(),
+                            getString(R.string.feed_group_page_summary),
+                            tab.getTabIconRes(context)));
+                    break;
                 default:
                     if (!tabList.contains(tab)) {
                         returnList.add(new ChooseTabListItem(context, tab));
@@ -396,6 +410,9 @@ private String getTabName(@NonNull final Tab.Type type, @NonNull final Tab tab)
                                 ? getString(R.string.local)
                                 : getNameOfServiceById(serviceId);
                         return serviceName + "/" + tab.getTabName(requireContext());
+                    case FEEDGROUP:
+                        return getString(R.string.feed_groups_header_title)
+                                + "/" + ((Tab.FeedGroupTab) tab).getFeedGroupName();
                     default:
                         return tab.getTabName(requireContext());
                 }