Switched to new emoji lookup pattern, added rendering support.

src/org/thoughtcrime/securesms/ConversationItem.java

@@ -51,6 +51,7 @@ import org.thoughtcrime.securesms.mms.Slide;
 import org.thoughtcrime.securesms.mms.SlideDeck;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.service.SendReceiveService;
+import org.thoughtcrime.securesms.util.Emoji;
 import org.thoughtcrime.securesms.util.FutureTaskListener;
 import org.thoughtcrime.securesms.util.ListenableFutureTask;
 
@@ -165,7 +166,8 @@ public class ConversationItem extends LinearLayout {
   /// MessageRecord Attribute Parsers
 
   private void setBodyText(MessageRecord messageRecord) {
-    bodyText.setText(messageRecord.getDisplayBody(), TextView.BufferType.SPANNABLE);
+    bodyText.setText(Emoji.getInstance(context).emojify(messageRecord.getDisplayBody(), Emoji.EMOJI_LARGE),
+                     TextView.BufferType.SPANNABLE);
   }
 
   private void setContactPhoto(MessageRecord messageRecord) {

src/org/thoughtcrime/securesms/ConversationListItem.java

@@ -19,7 +19,6 @@ package org.thoughtcrime.securesms;
 import android.content.Context;
 import android.content.Intent;
 import android.content.res.TypedArray;
-import android.graphics.Color;
 import android.graphics.Typeface;
 import android.net.Uri;
 import android.os.Build;
@@ -41,6 +40,7 @@ import android.widget.TextView;
 import org.thoughtcrime.securesms.database.model.ThreadRecord;
 import org.thoughtcrime.securesms.recipients.Recipient;
 import org.thoughtcrime.securesms.recipients.Recipients;
+import org.thoughtcrime.securesms.util.Emoji;
 
 import java.util.Set;
 
@@ -103,7 +103,9 @@ public class ConversationListItem extends RelativeLayout
 
     this.recipients.addListener(this);
     this.fromView.setText(formatFrom(recipients, count, read));
-    this.subjectView.setText(thread.getDisplayBody(), TextView.BufferType.SPANNABLE);
+    this.subjectView.setText(Emoji.getInstance(context).emojify(thread.getDisplayBody(),
+                                                                Emoji.EMOJI_SMALL),
+                             TextView.BufferType.SPANNABLE);
 
     if (thread.getDate() > 0)
       this.dateView.setText(DateUtils.getRelativeTimeSpanString(getContext(), thread.getDate(), false));

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

@@ -24,6 +24,7 @@ import android.widget.TextView;
 import org.thoughtcrime.securesms.R;
 import org.thoughtcrime.securesms.util.Emoji;
 
+import java.io.File;
 import java.io.IOException;
 
 public class EmojiDrawer extends FrameLayout {
@@ -32,6 +33,7 @@ public class EmojiDrawer extends FrameLayout {
   private FrameLayout   recentEmojiGridLayout;
 
   private EditText      composeText;
+  private Emoji         emoji;
 
   public EmojiDrawer(Context context) {
     super(context);
@@ -57,6 +59,7 @@ public class EmojiDrawer extends FrameLayout {
   }
 
   private void initialize() {
+    this.emoji              = Emoji.getInstance(getContext());
     LayoutInflater inflater = (LayoutInflater)getContext().getSystemService(Context.LAYOUT_INFLATER_SERVICE);
     inflater.inflate(R.layout.emoji_drawer, this, true);
 
@@ -79,14 +82,14 @@ public class EmojiDrawer extends FrameLayout {
   private class EmojiClickListener implements AdapterView.OnItemClickListener {
     @Override
     public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
-      int    start = composeText.getSelectionStart();
-      int    end   = composeText.getSelectionEnd  ();
-      String emoji = Emoji.EMOJI_ASSET_CODE_MAP.get(Emoji.EMOJI_ASSETS.get(position));
+      int    start      = composeText.getSelectionStart();
+      int    end        = composeText.getSelectionEnd  ();
+      String characters = emoji.getEmojiUnicode(position);
 
       composeText.getText().replace(Math.min(start, end), Math.max(start, end),
-                                    emoji, 0, emoji.length());
+                                    characters, 0, characters.length());
 
-      composeText.setText(Emoji.emojify(getContext(), composeText.getText().toString()),
+      composeText.setText(emoji.emojify(composeText.getText().toString()),
                           TextView.BufferType.SPANNABLE);
 
       composeText.setSelection(end+2);
@@ -97,7 +100,7 @@ public class EmojiDrawer extends FrameLayout {
 
     @Override
     public int getCount() {
-      return Emoji.EMOJI_ASSETS.size();
+      return emoji.getEmojiAssetCount();
     }
 
     @Override
@@ -112,25 +115,19 @@ public class EmojiDrawer extends FrameLayout {
 
     @Override
     public View getView(int position, View convertView, ViewGroup parent) {
-      try {
-        String asset        = Emoji.EMOJI_ASSETS.get(position);
-        Drawable drawable   = Drawable.createFromStream(getContext().getAssets().open(asset + ".png"), null);
+      Drawable drawable = emoji.getEmojiDrawable(position);
 
-        if (convertView != null && convertView instanceof ImageView) {
-          ((ImageView)convertView).setImageDrawable(drawable);
-          return convertView;
-        } else {
-          ImageView imageView = new ImageView(getContext());
-          imageView.setImageDrawable(drawable);
-          return imageView;
-        }
-      } catch (IOException ioe) {
-        throw new AssertionError(ioe);
+      if (convertView != null && convertView instanceof ImageView) {
+        ((ImageView)convertView).setImageDrawable(drawable);
+        return convertView;
+      } else {
+        ImageView imageView = new ImageView(getContext());
+        imageView.setImageDrawable(drawable);
+        return imageView;
       }
     }
   }
 
-
   private class EmojiPagerAdapter extends PagerAdapter {
 
     @Override

src/org/thoughtcrime/securesms/util/Emoji.java

@@ -7,170 +7,100 @@ import android.text.SpannableString;
 import android.text.style.ImageSpan;
 import android.util.Log;
 
+import java.io.File;
 import java.io.IOException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.Map;
+import java.util.Collections;
+import java.util.HashSet;
+import java.util.Set;
 import java.util.regex.Matcher;
 import java.util.regex.Pattern;
 
 public class Emoji {
 
-  public static final HashMap<String, String> EMOJI_ASSET_CODE_MAP = new HashMap<String, String>();
-  public static final HashMap<Pattern, String> EMOJI_CODE_ASSET_MAP = new HashMap<Pattern, String>();
+  private static Emoji instance = null;
 
-  public static final ArrayList<String> EMOJI_ASSETS = new ArrayList<String>() {{
-    add("1f601");
-    add("1f602");
-    add("1f603");
-    add("1f604");
-    add("1f605");
-    add("1f606");
-    add("1f609");
-    add("1f60a");
-    add("1f60b");
-    add("1f60c");
-    add("1f60d");
-    add("1f60f");
-    add("1f612");
-    add("1f613");
-    add("1f614");
-    add("1f616");
-    add("1f618");
-    add("1f61a");
-    add("1f61c");
-    add("1f61d");
-    add("1f61e");
-    add("1f620");
-    add("1f621");
-    add("1f622");
-    add("1f623");
-    add("1f624");
-    add("1f625");
-    add("1f628");
-    add("1f629");
-    add("1f62a");
-    add("1f62b");
-    add("1f62d");
-    add("1f630");
-    add("1f631");
-    add("1f632");
-    add("1f633");
-    add("1f635");
-    add("1f637");
-
-    add("1f638");
-    add("1f639");
-    add("1f63a");
-    add("1f63b");
-    add("1f63c");
-    add("1f63d");
-    add("1f63e");
-    add("1f63f");
-    add("1f640");
-    add("1f645");
-    add("1f646");
-    add("1f647");
-    add("1f648");
-    add("1f649");
-    add("1f64a");
-    add("1f64b");
-    add("1f64c");
-    add("1f64d");
-    add("1f64e");
-    add("1f64f");
-  }};
-
-  public static ArrayList<String> EMOJI_CODES = new ArrayList<String>() {{
-    add("\ud83d\ude01");
-    add("\ud83d\ude02");
-    add("\ud83d\ude03");
-    add("\ud83d\ude04");
-    add("\ud83d\ude05");
-    add("\ud83d\ude06");
-    add("\ud83d\ude09");
-    add("\ud83d\ude0a");
-    add("\ud83d\ude0b");
-    add("\ud83d\ude0c");
-    add("\ud83d\ude0d");
-    add("\ud83d\ude0f");
-    add("\ud83d\ude12");
-    add("\ud83d\ude13");
-    add("\ud83d\ude14");
-    add("\ud83d\ude16");
-    add("\ud83d\ude18");
-    add("\ud83d\ude1a");
-    add("\ud83d\ude1c");
-    add("\ud83d\ude1d");
-    add("\ud83d\ude1e");
-    add("\ud83d\ude20");
-    add("\ud83d\ude21");
-    add("\ud83d\ude22");
-    add("\ud83d\ude23");
-    add("\ud83d\ude24");
-    add("\ud83d\ude25");
-    add("\ud83d\ude28");
-    add("\ud83d\ude29");
-    add("\ud83d\ude2a");
-    add("\ud83d\ude2b");
-    add("\ud83d\ude2d");
-    add("\ud83d\ude30");
-    add("\ud83d\ude31");
-    add("\ud83d\ude32");
-    add("\ud83d\ude33");
-    add("\ud83d\ude35");
-    add("\ud83d\ude37");
-
-    add("\ud83d\ude38");
-    add("\ud83d\ude39");
-    add("\ud83d\ude3a");
-    add("\ud83d\ude3b");
-    add("\ud83d\ude3c");
-    add("\ud83d\ude3d");
-    add("\ud83d\ude3e");
-    add("\ud83d\ude3f");
-    add("\ud83d\ude40");
-    add("\ud83d\ude45");
-    add("\ud83d\ude46");
-    add("\ud83d\ude47");
-    add("\ud83d\ude48");
-    add("\ud83d\ude49");
-    add("\ud83d\ude4a");
-    add("\ud83d\ude4b");
-    add("\ud83d\ude4c");
-    add("\ud83d\ude4d");
-    add("\ud83d\ude4e");
-    add("\ud83d\ude4f");
-  }};
-
-  static {
-    for (int i=0;i<EMOJI_ASSETS.size();i++) {
-      EMOJI_ASSET_CODE_MAP.put(EMOJI_ASSETS.get(i), EMOJI_CODES.get(i));
-      EMOJI_CODE_ASSET_MAP.put(Pattern.compile(EMOJI_CODES.get(i)), EMOJI_ASSETS.get(i));
+  public synchronized static Emoji getInstance(Context context) {
+    if (instance == null) {
+      instance = new Emoji(context);
     }
+
+    return instance;
   }
 
-  public static Spannable emojify(Context context, String text) {
-    try {
-      Spannable spannable = new SpannableString(text);
+  private static final Pattern EMOJI_RANGE = Pattern.compile("[\ud83d\ude01-\ud83d\ude4f]");
+  public  static final double  EMOJI_LARGE = 1;
+  public  static final double  EMOJI_SMALL = 0.7;
 
-      for (Map.Entry<Pattern, String> entry : EMOJI_CODE_ASSET_MAP.entrySet()) {
-        Matcher matcher = entry.getKey().matcher(spannable);
+  private final Context     context;
+  private final String[]    emojiAssets;
+  private final Set<String> emojiAssetsSet;
 
-        while (matcher.find()) {
-          Drawable asset = Drawable.createFromStream(context.getAssets().open(entry.getValue() + ".png"), null);
-          asset.setBounds(0, 0, asset.getIntrinsicWidth(), asset.getIntrinsicHeight());
+  private Emoji(Context context) {
+    this.context        = context.getApplicationContext();
+    this.emojiAssets    = initializeEmojiAssets();
+    this.emojiAssetsSet = new HashSet<String>();
+
+    Collections.addAll(this.emojiAssetsSet, emojiAssets);
+  }
+
+  public int getEmojiAssetCount() {
+    return emojiAssets.length;
+  }
+
+  public String getEmojiUnicode(int position) {
+    String  hexString    = emojiAssets[position].split("\\.")[0];
+    Integer unicodePoint = Integer.parseInt(hexString, 16);
+    return new String(Character.toChars(unicodePoint));
+  }
+
+  public Drawable getEmojiDrawable(int position) {
+    return getEmojiDrawable(emojiAssets[position]);
+  }
+
+  public SpannableString emojify(String text) {
+    return emojify(new SpannableString(text), EMOJI_LARGE);
+  }
+
+  public SpannableString emojify(SpannableString text, double size) {
+    if (text.toString().contains("\ud83d")) {
+
+      Matcher matches = EMOJI_RANGE.matcher(text);
+
+      while (matches.find()) {
+        String resource = Integer.toHexString(matches.group().codePointAt(0)) + ".png";
+
+        if (emojiAssetsSet.contains(resource)) {
+          Drawable drawable = getEmojiDrawable(resource);
+          drawable.setBounds(0, 0, (int)(drawable.getIntrinsicWidth()*size),
+                             (int)(drawable.getIntrinsicHeight()*size));
+
+
+          ImageSpan imageSpan = new ImageSpan(drawable, ImageSpan.ALIGN_BOTTOM);
+          text.setSpan(imageSpan, matches.start(), matches.end(),
+                       Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
 
-          ImageSpan imageSpan = new ImageSpan(asset, ImageSpan.ALIGN_BASELINE);
-          Log.w("Emoji", "Replacing text with: " + imageSpan);
-          spannable.setSpan(imageSpan,matcher.start(), matcher.end(),
-                            Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
         }
       }
+    }
 
-      return spannable;
+    return text;
+  }
+
+  private Drawable getEmojiDrawable(String assetName) {
+    try {
+      return Drawable.createFromStream(context.getAssets().open("emoji" + File.separator + assetName), null);
     } catch (IOException e) {
       throw new AssertionError(e);
     }
   }
+
+  private String[] initializeEmojiAssets() {
+    try {
+      return context.getAssets().list("emoji");
+    } catch (IOException e) {
+      Log.w("Emoji", e);
+      return new String[0];
+    }
+  }
+
 }