From 44561a9cb6a44eecb0305c3295993cb430d881d5 Mon Sep 17 00:00:00 2001
From: Samuel Holland <samuel@sholland.org>
Date: Thu, 17 Aug 2017 02:44:18 -0500
Subject: [PATCH] ObservableArrayMapAdapter: Remove

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
---
 .../wireguard/android/BindingAdapters.java    | 28 ------
 .../android/ObservableArrayMapAdapter.java    | 92 -------------------
 2 files changed, 120 deletions(-)
 delete mode 100644 app/src/main/java/com/wireguard/android/ObservableArrayMapAdapter.java

diff --git a/app/src/main/java/com/wireguard/android/BindingAdapters.java b/app/src/main/java/com/wireguard/android/BindingAdapters.java
index 7e93c228..e3df7bb4 100644
--- a/app/src/main/java/com/wireguard/android/BindingAdapters.java
+++ b/app/src/main/java/com/wireguard/android/BindingAdapters.java
@@ -14,34 +14,6 @@ import android.widget.TextView;
 
 @SuppressWarnings("unused")
 public final class BindingAdapters {
-    @BindingAdapter({"items", "layout"})
-    public static <K, V> void arrayMapBinding(final ListView view,
-                                              final ObservableArrayMap<K, V> oldMap,
-                                              final int oldLayoutId,
-                                              final ObservableArrayMap<K, V> newMap,
-                                              final int newLayoutId) {
-        // Remove any existing binding when there is no new map.
-        if (newMap == null) {
-            view.setAdapter(null);
-            return;
-        }
-        // The ListAdapter interface is not generic, so this cannot be checked.
-        @SuppressWarnings("unchecked")
-        ObservableArrayMapAdapter<K, V> adapter =
-                (ObservableArrayMapAdapter<K, V>) view.getAdapter();
-        // If the layout changes, any existing adapter must be replaced.
-        if (newLayoutId != oldLayoutId)
-            adapter = null;
-        // Add a new binding if there was none, or if it must be replaced due to a layout change.
-        if (adapter == null) {
-            adapter = new ObservableArrayMapAdapter<>(view.getContext(), newLayoutId, newMap);
-            view.setAdapter(adapter);
-        } else if (newMap != oldMap) {
-            // Changing the list only requires modifying the existing adapter.
-            adapter.setMap(newMap);
-        }
-    }
-
     @BindingAdapter({"items", "layout"})
     public static <T> void listBinding(final ListView view,
                                        final ObservableList<T> oldList, final int oldLayoutId,
diff --git a/app/src/main/java/com/wireguard/android/ObservableArrayMapAdapter.java b/app/src/main/java/com/wireguard/android/ObservableArrayMapAdapter.java
deleted file mode 100644
index dd3a380f..00000000
--- a/app/src/main/java/com/wireguard/android/ObservableArrayMapAdapter.java
+++ /dev/null
@@ -1,92 +0,0 @@
-package com.wireguard.android;
-
-import android.content.Context;
-import android.databinding.DataBindingUtil;
-import android.databinding.ObservableArrayMap;
-import android.databinding.ObservableMap;
-import android.databinding.ViewDataBinding;
-import android.view.LayoutInflater;
-import android.view.View;
-import android.view.ViewGroup;
-import android.widget.BaseAdapter;
-import android.widget.ListAdapter;
-
-import java.lang.ref.WeakReference;
-
-/**
- * A generic ListAdapter backed by an ObservableArrayMap.
- */
-
-class ObservableArrayMapAdapter<K, V> extends BaseAdapter implements ListAdapter {
-    private final int layoutId;
-    private final LayoutInflater layoutInflater;
-    private ObservableArrayMap<K, V> map;
-    private final OnMapChangedCallback<K, V> callback = new OnMapChangedCallback<>(this);
-
-    ObservableArrayMapAdapter(final Context context, final int layoutId,
-                              final ObservableArrayMap<K, V> map) {
-        super();
-        layoutInflater = LayoutInflater.from(context);
-        this.layoutId = layoutId;
-        setMap(map);
-    }
-
-    @Override
-    public int getCount() {
-        return map != null ? map.size() : 0;
-    }
-
-    @Override
-    public V getItem(final int position) {
-        return map != null ? map.valueAt(position) : null;
-    }
-
-    @Override
-    public long getItemId(final int position) {
-        return getItem(position) != null ? getItem(position).hashCode() : -1;
-    }
-
-    @Override
-    public View getView(final int position, final View convertView, final ViewGroup parent) {
-        ViewDataBinding binding = DataBindingUtil.getBinding(convertView);
-        if (binding == null)
-            binding = DataBindingUtil.inflate(layoutInflater, layoutId, parent, false);
-        binding.setVariable(BR.item, getItem(position));
-        binding.executePendingBindings();
-        return binding.getRoot();
-    }
-
-    @Override
-    public boolean hasStableIds() {
-        return true;
-    }
-
-    public void setMap(final ObservableArrayMap<K, V> newMap) {
-        if (map != null)
-            map.removeOnMapChangedCallback(callback);
-        map = newMap;
-        if (map != null) {
-            map.addOnMapChangedCallback(callback);
-        }
-    }
-
-    private static class OnMapChangedCallback<K, V>
-            extends ObservableMap.OnMapChangedCallback<ObservableMap<K, V>, K, V> {
-
-        private final WeakReference<ObservableArrayMapAdapter<K, V>> weakAdapter;
-
-        private OnMapChangedCallback(final ObservableArrayMapAdapter<K, V> adapter) {
-            super();
-            weakAdapter = new WeakReference<>(adapter);
-        }
-
-        @Override
-        public void onMapChanged(final ObservableMap<K, V> sender, final K key) {
-            final ObservableArrayMapAdapter<K, V> adapter = weakAdapter.get();
-            if (adapter != null)
-                adapter.notifyDataSetChanged();
-            else
-                sender.removeOnMapChangedCallback(this);
-        }
-    }
-}