1 files changed, 149 insertions, 0 deletions
diff --git a/src/com/android/tv/ui/sidepanel/SideFragment.java b/src/com/android/tv/ui/sidepanel/SideFragment.java
new file mode 100644
index 00000000..6967a744
--- /dev/null
+++ b/src/com/android/tv/ui/sidepanel/SideFragment.java
@@ -0,0 +1,149 @@
+package com.android.tv.ui.sidepanel;
+
+import android.app.Fragment;
+import android.os.Bundle;
+import android.support.v17.leanback.widget.VerticalGridView;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.TextView;
+
+import com.android.tv.R;
+import com.android.tv.TvActivity;
+
+import java.util.List;
+
+public abstract class SideFragment extends Fragment {
+    public SideFragment() { }
+
+    @Override
+    public View onCreateView(LayoutInflater inflater, ViewGroup container,
+            Bundle savedInstanceState) {
+        View view = inflater.inflate(R.layout.option_fragment, container, false);
+
+        TextView textView = (TextView) view.findViewById(R.id.side_panel_title);
+        textView.setText(getTitle());
+
+        VerticalGridView listView = (VerticalGridView) view.findViewById(R.id.side_panel_list);
+        listView.setAdapter(new ItemAdapter(inflater, getItemList()));
+        listView.requestFocus();
+
+        // TODO find a better way to do this
+        if (getFragmentManager().getBackStackEntryCount() != 0) {
+            view.findViewById(R.id.side_panel_shadow).setVisibility(View.GONE);
+        }
+
+        return view;
+    }
+
+    @Override
+    public void onDetach() {
+        super.onDetach();
+
+        // TODO find a better way to do this
+        if (getFragmentManager().getBackStackEntryCount() == 0) {
+            TvActivity tvActivity = getTvActivity();
+            tvActivity.onSideFragmentCanceled(BaseSideFragment.INITIATOR_UNKNOWN);
+            tvActivity.hideOverlays(false, false, true);
+        }
+    }
+
+    protected TvActivity getTvActivity() {
+        return (TvActivity) getActivity();
+    }
+
+    protected void notifyDataSetChanged() {
+        VerticalGridView listView = (VerticalGridView) getView().findViewById(R.id.side_panel_list);
+        listView.getAdapter().notifyDataSetChanged();
+    }
+
+    protected abstract String getTitle();
+    protected abstract List<Item> getItemList();
+
+    private static class ItemAdapter extends RecyclerView.Adapter<ItemAdapter.ViewHolder> {
+        private final LayoutInflater mLayoutInflater;
+        private final List<Item> mItems;
+
+        private ItemAdapter(LayoutInflater layoutInflater, List<Item> items) {
+            mLayoutInflater = layoutInflater;
+            mItems = items;
+        }
+
+        @Override
+        public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
+            View view = mLayoutInflater.inflate(viewType, parent, false);
+            final ViewHolder holder = new ViewHolder(view);
+            view.setOnClickListener(new View.OnClickListener() {
+                @Override
+                public void onClick(View view) {
+                    if (holder.item instanceof RadioButtonItem) {
+                        clearRadioGroup(holder.item);
+                    }
+                    holder.item.onSelected();
+                }
+            });
+            view.setOnFocusChangeListener(new View.OnFocusChangeListener() {
+                @Override
+                public void onFocusChange(View view, boolean focusGained) {
+                    if (focusGained) {
+                        holder.item.onFocused();
+                    }
+                }
+            });
+            return holder;
+        }
+
+        @Override
+        public void onBindViewHolder(ViewHolder holder, int position) {
+            holder.item = getItem(position);
+            holder.item.bind(holder.itemView);
+        }
+
+        @Override
+        public void onViewRecycled(ViewHolder holder) {
+            holder.item.unbind();
+            holder.item = null;
+        }
+
+        @Override
+        public int getItemViewType(int position) {
+            return getItem(position).getResourceId();
+        }
+
+        @Override
+        public int getItemCount() {
+            return mItems == null ? 0 : mItems.size();
+        }
+
+        private Item getItem(int position) {
+            return mItems.get(position);
+        }
+
+        private void clearRadioGroup(Item item) {
+            int position = mItems.indexOf(item);
+            for (int i = position - 1; i >= 0; --i) {
+                if ((item = mItems.get(i)) instanceof RadioButtonItem) {
+                    ((RadioButtonItem) item).setChecked(false);
+                } else {
+                    break;
+                }
+            }
+            for (int i = position + 1; i < mItems.size(); ++i) {
+                if ((item = mItems.get(i)) instanceof RadioButtonItem) {
+                    ((RadioButtonItem) item).setChecked(false);
+                } else {
+                    break;
+                }
+            }
+        }
+
+        private static class ViewHolder extends RecyclerView.ViewHolder {
+            public Item item;
+
+            private ViewHolder(View view) {
+                super(view);
+            }
+        }
+    }
+}
+\ No newline at end of file