Allow the selection of fitzpatrick emoji.

res/drawable/emoji_variation_selector_background_light.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+
+    <corners android:radius="5dp" />
+    <solid android:color="@color/core_white" />
+
+</shape>

res/drawable/triangle_bottom_right_corner.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+
+    <path
+        android:pathData="M24,0 L0,24 L24,24 Z"
+        android:strokeColor="#00000000"
+        android:fillColor="#ffffff"/>
+
+</vector>

res/layout/emoji_display_item.xml

@@ -0,0 +1,38 @@
+<?xml version="1.0" encoding="utf-8"?>
+<FrameLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:padding="2dp"
+    android:background="?selectableItemBackground">
+
+    <ImageView
+        android:id="@+id/emoji_image"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:paddingTop="6dp"
+        android:paddingRight="6dp"
+        android:paddingLeft="6dp"
+        android:adjustViewBounds="true"
+        android:scaleType="fitCenter" />
+
+    <org.thoughtcrime.securesms.components.emoji.AsciiEmojiView
+        android:id="@+id/emoji_text"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:paddingTop="6dp"
+        android:paddingRight="6dp"
+        android:paddingLeft="6dp"
+        android:visibility="gone"/>
+
+    <ImageView
+        android:id="@+id/emoji_variation_hint"
+        android:layout_width="7dp"
+        android:layout_height="7dp"
+        android:layout_gravity="bottom|right|end"
+        app:srcCompat="@drawable/triangle_bottom_right_corner"
+        android:tint="@color/core_grey_25"/>
+
+</FrameLayout>

res/layout/emoji_drawer.xml

@@ -36,7 +36,7 @@
 
     </LinearLayout>
 
-    <android.support.v4.view.ViewPager
+    <org.thoughtcrime.securesms.components.ControllableViewPager
             android:id="@+id/emoji_pager"
             android:visibility="visible"
             android:layout_width="match_parent"

res/layout/emoji_grid_layout.xml

@@ -4,15 +4,11 @@
              android:layout_width="match_parent"
              android:layout_height="match_parent">
 
-    <GridView android:id="@+id/emoji"
-              android:visibility="visible"
-              android:layout_width="fill_parent"
-              android:layout_height="match_parent"
-              android:stretchMode="columnWidth"
-              android:columnWidth="@dimen/emoji_drawer_size"
-              android:horizontalSpacing="0dp"
-              android:verticalSpacing="0dp"
-              android:numColumns="auto_fit"
-              android:gravity="center"/>
+    <android.support.v7.widget.RecyclerView
+        android:id="@+id/emoji"
+        android:layout_width="match_parent"
+        android:layout_height="match_parent"
+        android:clipToPadding="false"
+        android:paddingBottom="8dp"/>
 
 </FrameLayout>

res/layout/emoji_variation_selector.xml

@@ -0,0 +1,9 @@
+<?xml version="1.0" encoding="utf-8"?>
+<LinearLayout
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:orientation="horizontal"
+    android:layout_width="wrap_content"
+    android:layout_height="wrap_content"
+    android:background="@drawable/emoji_variation_selector_background_light">
+
+</LinearLayout>

res/layout/emoji_variation_selector_item.xml

@@ -0,0 +1,8 @@
+<?xml version="1.0" encoding="utf-8"?>
+<ImageView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="50dp"
+    android:layout_height="50dp"
+    android:padding="6dp">
+
+</ImageView>

res/values/dimens.xml

@@ -8,6 +8,7 @@
     <dimen name="emoji_drawer_item_padding">5dp</dimen>
     <dimen name="emoji_drawer_indicator_height">1.5dp</dimen>
     <dimen name="emoji_drawer_left_right_padding">5dp</dimen>
+    <dimen name="emoji_drawer_item_width">48dp</dimen>
     <dimen name="conversation_item_body_text_size">16sp</dimen>
     <dimen name="conversation_item_date_text_size">12sp</dimen>
     <dimen name="transport_selection_popup_width">200sp</dimen>

src/org/thoughtcrime/securesms/components/emoji/AsciiEmojiView.java

@@ -0,0 +1,60 @@
+package org.thoughtcrime.securesms.components.emoji;
+
+import android.content.Context;
+import android.graphics.Canvas;
+import android.graphics.Paint;
+import android.text.TextUtils;
+import android.util.AttributeSet;
+import android.view.View;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.util.ResUtil;
+
+import androidx.annotation.Nullable;
+
+public class AsciiEmojiView extends View {
+
+  private final Paint paint = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
+
+  private String emoji;
+
+  public AsciiEmojiView(Context context) {
+    super(context);
+  }
+
+  public AsciiEmojiView(Context context, @Nullable @android.support.annotation.Nullable AttributeSet attrs) {
+    super(context, attrs);
+  }
+
+  public void setEmoji(String emoji) {
+    this.emoji = emoji;
+  }
+
+  @Override
+  protected void onDraw(Canvas canvas) {
+    if (TextUtils.isEmpty(emoji)) {
+      return;
+    }
+
+    float targetFontSize = 0.75f * getHeight() - getPaddingTop() - getPaddingBottom();
+
+    paint.setTextSize(targetFontSize);
+    paint.setColor(ResUtil.getColor(getContext(), R.attr.emoji_text_color));
+    paint.setTextAlign(Paint.Align.CENTER);
+
+    int xPos = (getWidth() / 2);
+    int yPos = (int) ((getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
+
+    float overflow = paint.measureText(emoji) / (getWidth() - getPaddingLeft() - getPaddingRight());
+    if (overflow > 1f) {
+      paint.setTextSize(targetFontSize / overflow);
+      yPos = (int) ((canvas.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
+    }
+    canvas.drawText(emoji, xPos, yPos, paint);
+  }
+
+  @Override
+  protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
+    super.onMeasure(widthMeasureSpec, widthMeasureSpec);
+  }
+}

src/org/thoughtcrime/securesms/components/emoji/Emoji.java

@@ -0,0 +1,21 @@
+package org.thoughtcrime.securesms.components.emoji;
+
+import java.util.Arrays;
+import java.util.List;
+
+public class Emoji {
+
+  private final List<String> variations;
+
+  public Emoji(String... variations) {
+    this.variations = Arrays.asList(variations);
+  }
+
+  public String getValue() {
+    return variations.get(0);
+  }
+
+  public List<String> getVariations() {
+    return variations;
+  }
+}

src/org/thoughtcrime/securesms/components/emoji/EmojiDrawer.java

@@ -2,10 +2,11 @@ package org.thoughtcrime.securesms.components.emoji;
 
 import android.content.Context;
 import android.support.annotation.NonNull;
-import android.support.annotation.Nullable;
 import android.support.v4.view.PagerAdapter;
 import android.support.v4.view.ViewPager;
 import android.util.AttributeSet;
+
+import org.thoughtcrime.securesms.components.emoji.EmojiPageViewGridAdapter.VariationSelectorListener;
 import org.thoughtcrime.securesms.logging.Log;
 import android.view.KeyEvent;
 import android.view.LayoutInflater;
@@ -27,7 +28,7 @@ import org.thoughtcrime.securesms.util.ResUtil;
 import java.util.LinkedList;
 import java.util.List;
 
-public class EmojiDrawer extends LinearLayout implements InputView {
+public class EmojiDrawer extends LinearLayout implements InputView, EmojiSelectionListener, VariationSelectorListener {
 
   private static final String TAG = EmojiDrawer.class.getSimpleName();
 
@@ -101,19 +102,23 @@ public class EmojiDrawer extends LinearLayout implements InputView {
     Log.i(TAG, "hide()");
   }
 
-  private void initializeEmojiGrid() {
-    pager.setAdapter(new EmojiPagerAdapter(getContext(),
-                                           models,
-                                           new EmojiSelectionListener() {
-                                             @Override
-                                             public void onEmojiSelected(String emoji) {
-                                               Log.i(TAG, "onEmojiSelected()");
-                                               recentModel.onCodePointSelected(emoji);
-                                               if (listener != null) listener.onEmojiSelected(emoji);
-                                             }
-                                           }));
+  @Override
+  public void onEmojiSelected(String emoji) {
+    recentModel.onCodePointSelected(emoji);
+    if (listener != null) {
+      listener.onEmojiSelected(emoji);
+    }
+  }
 
-    if (recentModel.getEmoji().length == 0) {
+  @Override
+  public void onVariationSelectorStateChanged(boolean open) {
+    pager.setEnabled(!open);
+  }
+
+  private void initializeEmojiGrid() {
+    pager.setAdapter(new EmojiPagerAdapter(getContext(), models, this, this));
+
+    if (recentModel.getDisplayEmoji().size() == 0) {
       pager.setCurrentItem(1);
     }
     strip.setViewPager(pager);
@@ -129,18 +134,21 @@ public class EmojiDrawer extends LinearLayout implements InputView {
   public static class EmojiPagerAdapter extends PagerAdapter
       implements PagerSlidingTabStrip.CustomTabProvider
   {
-    private Context                context;
-    private List<EmojiPageModel>   pages;
-    private EmojiSelectionListener listener;
+    private Context                   context;
+    private List<EmojiPageModel>      pages;
+    private EmojiSelectionListener    emojiSelectionListener;
+    private VariationSelectorListener variationSelectorListener;
 
     public EmojiPagerAdapter(@NonNull Context context,
                              @NonNull List<EmojiPageModel> pages,
-                             @Nullable EmojiSelectionListener listener)
+                             @NonNull EmojiSelectionListener emojiSelectionListener,
+                             @NonNull VariationSelectorListener variationSelectorListener)
     {
       super();
-      this.context  = context;
-      this.pages    = pages;
-      this.listener = listener;
+      this.context                   = context;
+      this.pages                     = pages;
+      this.emojiSelectionListener    = emojiSelectionListener;
+      this.variationSelectorListener = variationSelectorListener;
     }
 
     @Override
@@ -149,10 +157,9 @@ public class EmojiDrawer extends LinearLayout implements InputView {
     }
 
     @Override
-    public Object instantiateItem(ViewGroup container, int position) {
-      EmojiPageView page = new EmojiPageView(context);
+    public @NonNull Object instantiateItem(@NonNull ViewGroup container, int position) {
+      EmojiPageView page = new EmojiPageView(context, emojiSelectionListener, variationSelectorListener);
       page.setModel(pages.get(position));
-      page.setEmojiSelectedListener(listener);
       container.addView(page);
       return page;
     }

src/org/thoughtcrime/securesms/components/emoji/EmojiPageModel.java

@@ -1,9 +1,11 @@
 package org.thoughtcrime.securesms.components.emoji;
 
+import java.util.List;
+
 public interface EmojiPageModel {
   int getIconAttr();
-  String[] getEmoji();
-  String[] getDisplayEmoji();
+  List<String> getEmoji();
+  List<Emoji> getDisplayEmoji();
   boolean hasSpriteMap();
   String getSprite();
   boolean isDynamic();

src/org/thoughtcrime/securesms/components/emoji/EmojiPageView.java

@@ -1,106 +1,92 @@
 package org.thoughtcrime.securesms.components.emoji;
 
 import android.content.Context;
-import android.util.AttributeSet;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.GridLayoutManager;
+import android.support.v7.widget.RecyclerView;
 import android.view.LayoutInflater;
+import android.view.MotionEvent;
 import android.view.View;
-import android.view.ViewGroup;
-import android.widget.AbsListView;
-import android.widget.AdapterView;
-import android.widget.AdapterView.OnItemClickListener;
-import android.widget.BaseAdapter;
 import android.widget.FrameLayout;
-import android.widget.GridView;
 
 import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.components.emoji.EmojiPageViewGridAdapter.VariationSelectorListener;
 
-public class EmojiPageView extends FrameLayout {
+public class EmojiPageView extends FrameLayout implements VariationSelectorListener {
   private static final String TAG = EmojiPageView.class.getSimpleName();
 
-  private EmojiPageModel         model;
-  private EmojiSelectionListener listener;
-  private GridView               grid;
+  private EmojiPageModel                   model;
+  private EmojiPageViewGridAdapter         adapter;
+  private RecyclerView                     recyclerView;
+  private GridLayoutManager                layoutManager;
+  private RecyclerView.OnItemTouchListener scrollDisabler;
+  private VariationSelectorListener        variationSelectorListener;
 
-  public EmojiPageView(Context context) {
-    this(context, null);
-  }
-
-  public EmojiPageView(Context context, AttributeSet attrs) {
-    this(context, attrs, 0);
-  }
-
-  public EmojiPageView(Context context, AttributeSet attrs, int defStyleAttr) {
-    super(context, attrs, defStyleAttr);
+  public EmojiPageView(@NonNull Context context,
+                       @NonNull EmojiSelectionListener emojiSelectionListener,
+                       @NonNull VariationSelectorListener variationSelectorListener)
+  {
+    super(context);
     final View view = LayoutInflater.from(getContext()).inflate(R.layout.emoji_grid_layout, this, true);
-    grid = (GridView) view.findViewById(R.id.emoji);
-    grid.setColumnWidth(getResources().getDimensionPixelSize(R.dimen.emoji_drawer_size) + 2 * getResources().getDimensionPixelSize(R.dimen.emoji_drawer_item_padding));
-    grid.setOnItemClickListener(new OnItemClickListener() {
-      @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-        if (listener != null) listener.onEmojiSelected(((EmojiView)view).getEmoji());
-      }
-    });
+
+    this.variationSelectorListener = variationSelectorListener;
+
+    recyclerView   = view.findViewById(R.id.emoji);
+    layoutManager  = new GridLayoutManager(context, 8);
+    scrollDisabler = new ScrollDisabler();
+    adapter        = new EmojiPageViewGridAdapter(EmojiProvider.getInstance(context),
+                                              new EmojiVariationSelectorPopup(context, emojiSelectionListener),
+                                              emojiSelectionListener,
+                                              this);
+
+    recyclerView.setLayoutManager(layoutManager);
+    recyclerView.setAdapter(adapter);
   }
 
   public void onSelected() {
-    if (model.isDynamic() && grid != null && grid.getAdapter() != null) {
-      ((EmojiGridAdapter)grid.getAdapter()).notifyDataSetChanged();
+    if (model.isDynamic() && adapter != null) {
+      adapter.notifyDataSetChanged();
     }
   }
 
   public void setModel(EmojiPageModel model) {
     this.model = model;
-    grid.setAdapter(new EmojiGridAdapter(getContext(), model));
+    adapter.setEmoji(model.getDisplayEmoji());
   }
 
-  public void setEmojiSelectedListener(EmojiSelectionListener listener) {
-    this.listener = listener;
+  @Override
+  protected void onSizeChanged(int w, int h, int oldw, int oldh) {
+    int idealWidth = getContext().getResources().getDimensionPixelOffset(R.dimen.emoji_drawer_item_width);
+    layoutManager.setSpanCount(Math.max(w / idealWidth, 1));
   }
 
-  private static class EmojiGridAdapter extends BaseAdapter {
-
-    protected final Context                context;
-    private   final int                    emojiSize;
-    private   final EmojiPageModel         model;
-
-    public EmojiGridAdapter(Context context, EmojiPageModel model) {
-      this.context   = context;
-      this.emojiSize = (int) context.getResources().getDimension(R.dimen.emoji_drawer_size);
-      this.model     = model;
+  @Override
+  public void onVariationSelectorStateChanged(boolean open) {
+    if (open) {
+      recyclerView.addOnItemTouchListener(scrollDisabler);
+    } else {
+      post(() -> recyclerView.removeOnItemTouchListener(scrollDisabler));
     }
 
-    @Override public int getCount() {
-      return model.getDisplayEmoji().length;
-    }
-
-    @Override
-    public Object getItem(int position) {
-      return null;
-    }
-
-    @Override
-    public long getItemId(int position) {
-      return position;
-    }
-
-    @Override
-    public View getView(final int position, final View convertView, final ViewGroup parent) {
-      final EmojiView view;
-      final int pad = context.getResources().getDimensionPixelSize(R.dimen.emoji_drawer_item_padding);
-      if (convertView != null && convertView instanceof EmojiView) {
-        view = (EmojiView)convertView;
-      } else {
-        final EmojiView emojiView = new EmojiView(context);
-        emojiView.setPadding(pad, pad, pad, pad);
-        emojiView.setLayoutParams(new AbsListView.LayoutParams(emojiSize + 2 * pad, emojiSize + 2 * pad));
-        view = emojiView;
-      }
-
-      view.setEmoji(model.getDisplayEmoji()[position]);
-      return view;
+    if (variationSelectorListener != null) {
+      variationSelectorListener.onVariationSelectorStateChanged(open);
     }
   }
 
   public interface EmojiSelectionListener {
     void onEmojiSelected(String emoji);
   }
+
+  private static class ScrollDisabler implements RecyclerView.OnItemTouchListener {
+    @Override
+    public boolean onInterceptTouchEvent(@NonNull RecyclerView recyclerView, @NonNull MotionEvent motionEvent) {
+      return true;
+    }
+
+    @Override
+    public void onTouchEvent(@NonNull RecyclerView recyclerView, @NonNull MotionEvent motionEvent) { }
+
+    @Override
+    public void onRequestDisallowInterceptTouchEvent(boolean b) { }
+  }
 }

src/org/thoughtcrime/securesms/components/emoji/EmojiPageViewGridAdapter.java

@@ -0,0 +1,116 @@
+package org.thoughtcrime.securesms.components.emoji;
+
+import android.graphics.drawable.Drawable;
+import android.support.annotation.NonNull;
+import android.support.v7.widget.RecyclerView;
+import android.view.LayoutInflater;
+import android.view.View;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.PopupWindow;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.components.emoji.EmojiPageView.EmojiSelectionListener;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class EmojiPageViewGridAdapter extends RecyclerView.Adapter<EmojiPageViewGridAdapter.EmojiViewHolder> implements PopupWindow.OnDismissListener {
+
+  private final List<Emoji>                 emojiList;
+  private final EmojiProvider               emojiProvider;
+  private final EmojiVariationSelectorPopup popup;
+  private final VariationSelectorListener   variationSelectorListener;
+  private final EmojiSelectionListener      emojiSelectionListener;
+
+  public EmojiPageViewGridAdapter(@NonNull EmojiProvider emojiProvider,
+                                  @NonNull EmojiVariationSelectorPopup popup,
+                                  @NonNull EmojiSelectionListener emojiSelectionListener,
+                                  @NonNull VariationSelectorListener variationSelectorListener)
+  {
+    this.emojiList                 = new ArrayList<>();
+    this.emojiProvider             = emojiProvider;
+    this.popup                     = popup;
+    this.emojiSelectionListener    = emojiSelectionListener;
+    this.variationSelectorListener = variationSelectorListener;
+
+    popup.setOnDismissListener(this);
+  }
+
+  @NonNull
+  @Override
+  public EmojiViewHolder onCreateViewHolder(@NonNull ViewGroup viewGroup, int i) {
+    return new EmojiViewHolder(LayoutInflater.from(viewGroup.getContext()).inflate(R.layout.emoji_display_item, viewGroup, false));
+  }
+
+  @Override
+  public void onBindViewHolder(@NonNull EmojiViewHolder viewHolder, int i) {
+    Emoji emoji = emojiList.get(i);
+
+    Drawable drawable = emojiProvider.getEmojiDrawable(emoji.getValue());
+
+    if (drawable != null) {
+      viewHolder.textView.setVisibility(View.GONE);
+      viewHolder.imageView.setVisibility(View.VISIBLE);
+
+      viewHolder.imageView.setImageDrawable(drawable);
+    } else {
+      viewHolder.textView.setVisibility(View.VISIBLE);
+      viewHolder.imageView.setVisibility(View.GONE);
+
+      viewHolder.textView.setEmoji(emoji.getValue());
+    }
+
+    viewHolder.itemView.setOnClickListener(v -> {
+      emojiSelectionListener.onEmojiSelected(emoji.getValue());
+    });
+
+    if (emoji.getVariations().size() > 1) {
+      viewHolder.itemView.setOnLongClickListener(v -> {
+        popup.dismiss();
+        popup.setVariations(emoji.getVariations());
+        popup.showAsDropDown(viewHolder.itemView, 0, -(2 * viewHolder.itemView.getHeight()));
+        variationSelectorListener.onVariationSelectorStateChanged(true);
+        return true;
+      });
+      viewHolder.hintCorner.setVisibility(View.VISIBLE);
+    } else {
+      viewHolder.itemView.setOnLongClickListener(null);
+      viewHolder.hintCorner.setVisibility(View.GONE);
+    }
+  }
+
+  @Override
+  public int getItemCount() {
+    return emojiList.size();
+  }
+
+  public void setEmoji(@NonNull List<Emoji> emojiList) {
+    this.emojiList.clear();
+    this.emojiList.addAll(emojiList);
+    notifyDataSetChanged();
+  }
+
+  @Override
+  public void onDismiss() {
+    variationSelectorListener.onVariationSelectorStateChanged(false);
+  }
+
+  static class EmojiViewHolder extends RecyclerView.ViewHolder {
+
+    private final ImageView      imageView;
+    private final AsciiEmojiView textView;
+    private final ImageView      hintCorner;
+
+    public EmojiViewHolder(@NonNull View itemView) {
+      super(itemView);
+      this.imageView  = itemView.findViewById(R.id.emoji_image);
+      this.textView   = itemView.findViewById(R.id.emoji_text);
+      this.hintCorner = itemView.findViewById(R.id.emoji_variation_hint);
+    }
+  }
+
+  interface VariationSelectorListener {
+    void onVariationSelectorStateChanged(boolean open);
+  }
+}

src/org/thoughtcrime/securesms/components/emoji/EmojiProvider.java

@@ -27,6 +27,7 @@ import org.thoughtcrime.securesms.util.FutureTaskListener;
 import org.thoughtcrime.securesms.util.Util;
 import org.whispersystems.libsignal.util.Pair;
 
+import java.util.List;
 import java.util.concurrent.ExecutionException;
 
 class EmojiProvider {
@@ -64,8 +65,9 @@ class EmojiProvider {
       if (page.hasSpriteMap()) {
         EmojiPageBitmap pageBitmap = new EmojiPageBitmap(context, page, decodeScale);
 
-        for (int i=0;i<page.getEmoji().length;i++) {
-          emojiTree.add(page.getEmoji()[i], new EmojiDrawInfo(pageBitmap, i));
+        List<String> emojis = page.getEmoji();
+        for (int i = 0; i < emojis.size(); i++) {
+          emojiTree.add(emojis.get(i), new EmojiDrawInfo(pageBitmap, i));
         }
       }
     }

src/org/thoughtcrime/securesms/components/emoji/EmojiVariationSelectorPopup.java

@@ -0,0 +1,50 @@
+package org.thoughtcrime.securesms.components.emoji;
+
+import android.content.Context;
+import android.os.Build;
+import android.support.annotation.NonNull;
+import android.view.LayoutInflater;
+import android.view.ViewGroup;
+import android.widget.ImageView;
+import android.widget.PopupWindow;
+
+import org.thoughtcrime.securesms.R;
+import org.thoughtcrime.securesms.components.emoji.EmojiPageView.EmojiSelectionListener;
+
+import java.util.List;
+
+public class EmojiVariationSelectorPopup extends PopupWindow {
+
+  private final Context                context;
+  private final ViewGroup              list;
+  private final EmojiSelectionListener listener;
+
+  public EmojiVariationSelectorPopup(@NonNull Context context, @NonNull EmojiSelectionListener listener) {
+    super(context);
+    this.context  = context;
+    this.listener = listener;
+    this.list     = (ViewGroup) LayoutInflater.from(context).inflate(R.layout.emoji_variation_selector, null);
+
+    setContentView(list);
+    setBackgroundDrawable(null);
+    setOutsideTouchable(true);
+
+    if (Build.VERSION.SDK_INT >= 21) {
+      setElevation(20);
+    }
+  }
+
+  public void setVariations(List<String> variations) {
+    list.removeAllViews();
+
+    for (String variation : variations) {
+      ImageView imageView = (ImageView) LayoutInflater.from(context).inflate(R.layout.emoji_variation_selector_item, list, false);
+      imageView.setImageDrawable(EmojiProvider.getInstance(context).getEmojiDrawable(variation));
+      imageView.setOnClickListener(v -> {
+        listener.onEmojiSelected(variation);
+        dismiss();
+      });
+      list.addView(imageView);
+    }
+  }
+}

src/org/thoughtcrime/securesms/components/emoji/EmojiView.java

@@ -1,77 +0,0 @@
-package org.thoughtcrime.securesms.components.emoji;
-
-import android.content.Context;
-import android.graphics.Canvas;
-import android.graphics.Paint;
-import android.graphics.drawable.Drawable;
-import android.support.annotation.NonNull;
-import android.util.AttributeSet;
-import android.view.View;
-
-import org.thoughtcrime.securesms.R;
-import org.thoughtcrime.securesms.util.ResUtil;
-
-public class EmojiView extends View implements Drawable.Callback {
-  private String   emoji;
-  private Drawable drawable;
-
-  private final Paint paint      = new Paint(Paint.ANTI_ALIAS_FLAG | Paint.FILTER_BITMAP_FLAG);
-
-  public EmojiView(Context context) {
-    this(context, null);
-  }
-
-  public EmojiView(Context context, AttributeSet attrs) {
-    this(context, attrs, 0);
-  }
-
-  public EmojiView(Context context, AttributeSet attrs, int defStyleAttr) {
-    super(context, attrs, defStyleAttr);
-  }
-
-  public void setEmoji(String emoji) {
-    this.emoji    = emoji;
-    this.drawable = EmojiProvider.getInstance(getContext())
-                                 .getEmojiDrawable(emoji);
-    postInvalidate();
-  }
-
-  public String getEmoji() {
-    return emoji;
-  }
-
-  @Override protected void onDraw(Canvas canvas) {
-    if (drawable != null) {
-      drawable.setBounds(getPaddingLeft(),
-                         getPaddingTop(),
-                         getWidth() - getPaddingRight(),
-                         getHeight() - getPaddingBottom());
-      drawable.setCallback(this);
-      drawable.draw(canvas);
-    } else {
-      float targetFontSize = 0.75f * getHeight() - getPaddingTop() - getPaddingBottom();
-      paint.setTextSize(targetFontSize);
-      paint.setColor(ResUtil.getColor(getContext(), R.attr.emoji_text_color));
-      paint.setTextAlign(Paint.Align.CENTER);
-      int xPos = (canvas.getWidth() / 2);
-      int yPos = (int) ((canvas.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
-
-      float overflow = paint.measureText(emoji) /
-          (getWidth() - getPaddingLeft() - getPaddingRight());
-      if (overflow > 1f) {
-        paint.setTextSize(targetFontSize / overflow);
-        yPos = (int) ((canvas.getHeight() / 2) - ((paint.descent() + paint.ascent()) / 2));
-      }
-      canvas.drawText(emoji, xPos, yPos, paint);
-    }
-  }
-
-  @Override public void invalidateDrawable(@NonNull Drawable drawable) {
-    super.invalidateDrawable(drawable);
-    postInvalidate();
-  }
-
-  @Override protected void onMeasure(int widthMeasureSpec, int heightMeasureSpec) {
-    super.onMeasure(widthMeasureSpec, heightMeasureSpec);
-  }
-}

src/org/thoughtcrime/securesms/components/emoji/RecentEmojiPageModel.java

@@ -6,6 +6,7 @@ import android.os.AsyncTask;
 import android.preference.PreferenceManager;
 import android.support.annotation.NonNull;
 
+import com.annimon.stream.Stream;
 import com.fasterxml.jackson.databind.type.CollectionType;
 import com.fasterxml.jackson.databind.type.TypeFactory;
 
@@ -14,8 +15,11 @@ import org.thoughtcrime.securesms.logging.Log;
 import org.thoughtcrime.securesms.util.JsonUtils;
 
 import java.io.IOException;
+import java.util.ArrayList;
+import java.util.Collections;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
+import java.util.List;
 
 public class RecentEmojiPageModel implements EmojiPageModel {
   private static final String TAG                  = RecentEmojiPageModel.class.getSimpleName();
@@ -46,12 +50,14 @@ public class RecentEmojiPageModel implements EmojiPageModel {
     return R.attr.emoji_category_recent;
   }
 
-  @Override public String[] getEmoji() {
-    return toReversePrimitiveArray(recentlyUsed);
+  @Override public List<String> getEmoji() {
+    List<String> emoji = new ArrayList<>(recentlyUsed);
+    Collections.reverse(emoji);
+    return emoji;
   }
 
-  @Override public String[] getDisplayEmoji() {
-    return getEmoji();
+  @Override public List<Emoji> getDisplayEmoji() {
+    return Stream.of(getEmoji()).map(Emoji::new).toList();
   }
 
   @Override public boolean hasSpriteMap() {

src/org/thoughtcrime/securesms/components/emoji/StaticEmojiPageModel.java

@@ -4,20 +4,30 @@ import android.support.annotation.AttrRes;
 import android.support.annotation.NonNull;
 import android.support.annotation.Nullable;
 
-public class StaticEmojiPageModel implements EmojiPageModel {
-  @AttrRes  private final int      iconAttr;
-  @NonNull  private final String[] emoji;
-  @NonNull  private final String[] displayEmoji;
-  @Nullable private final String   sprite;
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.LinkedList;
+import java.util.List;
 
-  public StaticEmojiPageModel(@AttrRes int iconAttr, @NonNull String[] emoji, @Nullable String sprite) {
-    this(iconAttr, emoji, emoji, sprite);
+public class StaticEmojiPageModel implements EmojiPageModel {
+  @AttrRes  private final int         iconAttr;
+  @NonNull  private final List<Emoji> emoji;
+  @Nullable private final String      sprite;
+
+  public StaticEmojiPageModel(@AttrRes int iconAttr, @NonNull String[] strings, @Nullable String sprite) {
+    List<Emoji> emoji = new ArrayList<>(strings.length);
+    for (String s : strings) {
+      emoji.add(new Emoji(s));
+    }
+
+    this.iconAttr = iconAttr;
+    this.emoji    = emoji;
+    this.sprite   = sprite;
   }
 
-  public StaticEmojiPageModel(@AttrRes int iconAttr, @NonNull String[] emoji, @NonNull String[] displayEmoji, @Nullable String sprite) {
+  public StaticEmojiPageModel(@AttrRes int iconAttr, @NonNull Emoji[] emoji, @Nullable String sprite) {
     this.iconAttr     = iconAttr;
-    this.emoji        = emoji;
-    this.displayEmoji = displayEmoji;
+    this.emoji        = Arrays.asList(emoji);
     this.sprite       = sprite;
   }
 
@@ -26,13 +36,17 @@ public class StaticEmojiPageModel implements EmojiPageModel {
   }
 
   @Override
-  public @NonNull String[] getEmoji() {
-    return emoji;
+  public @NonNull List<String> getEmoji() {
+    List<String> emojis = new LinkedList<>();
+    for (Emoji e : emoji) {
+      emojis.addAll(e.getVariations());
+    }
+    return emojis;
   }
 
   @Override
-  public @NonNull String[] getDisplayEmoji() {
-    return displayEmoji;
+  public @NonNull List<Emoji> getDisplayEmoji() {
+    return emoji;
   }
 
   @Override