1 files changed, 158 insertions, 0 deletions
diff --git a/java/com/android/dialer/helplines/HelplineAdapter.java b/java/com/android/dialer/helplines/HelplineAdapter.java
new file mode 100644
index 000000000..6dd748e9b
--- /dev/null
+++ b/java/com/android/dialer/helplines/HelplineAdapter.java
@@ -0,0 +1,158 @@
+/*
+ * Copyright (C) 2019-2021 The LineageOS Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.android.dialer.helplines;
+
+import android.content.res.Resources;
+import android.support.annotation.NonNull;
+import android.support.v7.util.DiffUtil;
+import android.support.v7.widget.RecyclerView;
+import android.text.TextUtils;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.TextView;
+
+import com.android.dialer.R;
+import com.android.dialer.helplines.utils.HelplineUtils;
+
+import java.util.ArrayList;
+import java.util.List;
+
+class HelplineAdapter extends RecyclerView.Adapter<HelplineAdapter.ViewHolder> {
+
+    private Resources mResources;
+    private List<HelplineItem> mList = new ArrayList<>();
+    private Listener mListener;
+
+    HelplineAdapter(Resources resources, Listener listener) {
+        mResources = resources;
+        mListener = listener;
+    }
+
+    public void update(List<HelplineItem> list) {
+        DiffUtil.DiffResult result = DiffUtil.calculateDiff(new Callback(mList, list));
+        mList = list;
+        result.dispatchUpdatesTo(this);
+    }
+
+    @NonNull
+    @Override
+    public ViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int type) {
+        return new ViewHolder(LayoutInflater.from(parent.getContext())
+                .inflate(R.layout.item_helpline, parent, false));
+    }
+
+    @Override
+    public void onBindViewHolder(@NonNull ViewHolder viewHolder, int i) {
+        viewHolder.bind(mList.get(i));
+    }
+
+    @Override
+    public int getItemCount() {
+        return mList.size();
+    }
+
+    public interface Listener {
+        void initiateCall(@NonNull String number);
+
+        void onItemClicked(@NonNull HelplineItem item);
+    }
+
+    private static class Callback extends DiffUtil.Callback {
+        List<HelplineItem> mOldList;
+        List<HelplineItem> mNewList;
+
+        public Callback(List<HelplineItem> oldList,
+                        List<HelplineItem> newList) {
+            mOldList = oldList;
+            mNewList = newList;
+        }
+
+        @Override
+        public int getOldListSize() {
+            return mOldList.size();
+        }
+
+        @Override
+        public int getNewListSize() {
+            return mNewList.size();
+        }
+
+        @Override
+        public boolean areItemsTheSame(int iOld, int iNew) {
+            String oldNumber = mOldList.get(iOld).get("number");
+            String newNumber = mOldList.get(iNew).get("number");
+            return oldNumber.equals(newNumber);
+        }
+
+        @Override
+        public boolean areContentsTheSame(int iOld, int iNew) {
+            return false;
+        }
+    }
+
+    class ViewHolder extends RecyclerView.ViewHolder {
+        private final View mItemView;
+        private final TextView mLabelView;
+        private final TextView mCategoriesView;
+        private final TextView mLanguageView;
+        private final ImageView mCallIcon;
+
+        ViewHolder(@NonNull View itemView) {
+            super(itemView);
+
+            mItemView = itemView;
+            mLabelView = itemView.findViewById(R.id.item_helpline_title);
+            mCategoriesView = itemView.findViewById(R.id.item_helpline_categories);
+            mLanguageView = itemView.findViewById(R.id.item_helpline_languages);
+            mCallIcon = itemView.findViewById(R.id.item_helpline_call_icon);
+        }
+
+        void bind(HelplineItem item) {
+            mItemView.setOnClickListener(v -> {
+                mListener.onItemClicked(item);
+            });
+
+            String name = item.getName();
+            if (!TextUtils.isEmpty(name)) {
+                mLabelView.setText(name);
+            } else {
+                mLabelView.setText(R.string.unknown_helpline_name);
+            }
+
+            String categories = HelplineUtils.getCategories(mResources, item);
+            if (!TextUtils.isEmpty(categories)) {
+                mCategoriesView.setText(categories);
+                mCategoriesView.setVisibility(View.VISIBLE);
+            }
+
+            String languages = HelplineUtils.getLanguages(mResources, item);
+            if (!TextUtils.isEmpty(languages)) {
+                mLanguageView.setVisibility(View.VISIBLE);
+                mLanguageView.setText(languages);
+            }
+
+            String number = item.get("number");
+            if (!TextUtils.isEmpty(number)) {
+                mCallIcon.setVisibility(View.VISIBLE);
+                mCallIcon.setOnClickListener(v -> {
+                    mListener.initiateCall(number);
+                });
+            }
+        }
+    }
+}