use com.android.support:support-emoji

16 files changed, 393 insertions, 30 deletions

diff --git a/src/main/java/de/pixart/messenger/entities/Message.java b/src/main/java/de/pixart/messenger/entities/Message.java
index 9d1209830..828d810bf 100644
--- a/src/main/java/de/pixart/messenger/entities/Message.java
+++ b/src/main/java/de/pixart/messenger/entities/Message.java
@@ -5,8 +5,6 @@ import android.database.Cursor;
 import android.text.SpannableStringBuilder;
 import android.util.Log;
 
-import com.vdurmont.emoji.EmojiManager;
-
 import java.net.MalformedURLException;
 import java.net.URL;
 import java.util.Collections;
@@ -20,6 +18,7 @@ import de.pixart.messenger.crypto.axolotl.FingerprintStatus;
 import de.pixart.messenger.http.AesGcmURLStreamHandler;
 import de.pixart.messenger.ui.adapter.MessageAdapter;
 import de.pixart.messenger.utils.CryptoHelper;
+import de.pixart.messenger.utils.Emoticons;
 import de.pixart.messenger.utils.GeoHelper;
 import de.pixart.messenger.utils.MimeUtils;
 import de.pixart.messenger.utils.UIHelper;
@@ -742,7 +741,7 @@ public class Message extends AbstractEntity {
 
     public synchronized boolean bodyIsOnlyEmojis() {
         if (isEmojisOnly == null) {
-            isEmojisOnly = EmojiManager.isOnlyEmojis(body.replaceAll("\\s", ""));
+            isEmojisOnly = Emoticons.isOnlyEmoji(body.replaceAll("\\s", ""));
         }
         return isEmojisOnly;
     }
diff --git a/src/main/java/de/pixart/messenger/services/AbstractEmojiService.java b/src/main/java/de/pixart/messenger/services/AbstractEmojiService.java
new file mode 100644
index 000000000..75f1a4c98
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/services/AbstractEmojiService.java
@@ -0,0 +1,21 @@
+package de.pixart.messenger.services;
+
+import android.content.Context;
+import android.support.text.emoji.EmojiCompat;
+
+public abstract class AbstractEmojiService {
+
+    protected final Context context;
+
+    public AbstractEmojiService(Context context) {
+        this.context = context;
+    }
+
+    protected abstract EmojiCompat.Config buildConfig();
+
+    public void init() {
+        final EmojiCompat.Config config = buildConfig();
+        config.setReplaceAll(true);
+        EmojiCompat.init(config);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/services/EmojiService.java b/src/main/java/de/pixart/messenger/services/EmojiService.java
new file mode 100644
index 000000000..6f8d8facd
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/services/EmojiService.java
@@ -0,0 +1,17 @@
+package de.pixart.messenger.services;
+
+import android.content.Context;
+import android.support.text.emoji.EmojiCompat;
+import android.support.text.emoji.bundled.BundledEmojiCompatConfig;
+
+public class EmojiService extends AbstractEmojiService {
+
+    public EmojiService(Context context) {
+        super(context);
+    }
+
+    @Override
+    protected EmojiCompat.Config buildConfig() {
+        return new BundledEmojiCompatConfig(context);
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/services/NotificationService.java b/src/main/java/de/pixart/messenger/services/NotificationService.java
index f7416bca6..9f78fa751 100644
--- a/src/main/java/de/pixart/messenger/services/NotificationService.java
+++ b/src/main/java/de/pixart/messenger/services/NotificationService.java
@@ -510,7 +510,7 @@ public class NotificationService {
         for (Message message : messages) {
             Pair<String, Boolean> preview = UIHelper.getMessagePreview(mXmppConnectionService, message);
             // only show user written text
-            if (preview.second == false) {
+            if (!preview.second) {
                 uBuilder.addMessage(preview.first);
                 uBuilder.setLatestTimestamp(message.getTimeSent());
             }
diff --git a/src/main/java/de/pixart/messenger/ui/ConversationActivity.java b/src/main/java/de/pixart/messenger/ui/ConversationActivity.java
index ad8566693..2a65570de 100644
--- a/src/main/java/de/pixart/messenger/ui/ConversationActivity.java
+++ b/src/main/java/de/pixart/messenger/ui/ConversationActivity.java
@@ -71,6 +71,7 @@ import de.pixart.messenger.entities.MucOptions;
 import de.pixart.messenger.entities.Presence;
 import de.pixart.messenger.entities.Transferable;
 import de.pixart.messenger.persistance.FileBackend;
+import de.pixart.messenger.services.EmojiService;
 import de.pixart.messenger.services.UpdateService;
 import de.pixart.messenger.services.XmppConnectionService;
 import de.pixart.messenger.services.XmppConnectionService.OnAccountUpdate;
@@ -205,6 +206,7 @@ public class ConversationActivity extends XmppActivity
     @Override
     protected void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        new EmojiService(this).init();
         if (savedInstanceState != null) {
             mOpenConversation = savedInstanceState.getString(STATE_OPEN_CONVERSATION, null);
             mPanelOpen = savedInstanceState.getBoolean(STATE_PANEL_OPEN, true);
diff --git a/src/main/java/de/pixart/messenger/ui/ConversationFragment.java b/src/main/java/de/pixart/messenger/ui/ConversationFragment.java
index 8a5863313..560db367a 100644
--- a/src/main/java/de/pixart/messenger/ui/ConversationFragment.java
+++ b/src/main/java/de/pixart/messenger/ui/ConversationFragment.java
@@ -77,6 +77,7 @@ import de.pixart.messenger.ui.XmppActivity.OnValueEdited;
 import de.pixart.messenger.ui.adapter.MessageAdapter;
 import de.pixart.messenger.ui.adapter.MessageAdapter.OnContactPictureClicked;
 import de.pixart.messenger.ui.adapter.MessageAdapter.OnContactPictureLongClicked;
+import de.pixart.messenger.ui.widget.EditMessage;
 import de.pixart.messenger.utils.MessageUtils;
 import de.pixart.messenger.utils.NickValidityChecker;
 import de.pixart.messenger.utils.StylingHelper;
diff --git a/src/main/java/de/pixart/messenger/ui/ShareWithActivity.java b/src/main/java/de/pixart/messenger/ui/ShareWithActivity.java
index af1f0e77e..161a5c366 100644
--- a/src/main/java/de/pixart/messenger/ui/ShareWithActivity.java
+++ b/src/main/java/de/pixart/messenger/ui/ShareWithActivity.java
@@ -26,6 +26,7 @@ import de.pixart.messenger.entities.Account;
 import de.pixart.messenger.entities.Conversation;
 import de.pixart.messenger.entities.Message;
 import de.pixart.messenger.persistance.FileBackend;
+import de.pixart.messenger.services.EmojiService;
 import de.pixart.messenger.services.XmppConnectionService;
 import de.pixart.messenger.ui.adapter.ConversationAdapter;
 import de.pixart.messenger.xmpp.XmppConnection;
@@ -172,7 +173,7 @@ public class ShareWithActivity extends XmppActivity implements XmppConnectionSer
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-
+        new EmojiService(this).init();
         if (getActionBar() != null) {
             getActionBar().setDisplayHomeAsUpEnabled(false);
             getActionBar().setHomeButtonEnabled(false);
diff --git a/src/main/java/de/pixart/messenger/ui/ShowLocationActivity.java b/src/main/java/de/pixart/messenger/ui/ShowLocationActivity.java
index 79daee589..f57b53446 100644
--- a/src/main/java/de/pixart/messenger/ui/ShowLocationActivity.java
+++ b/src/main/java/de/pixart/messenger/ui/ShowLocationActivity.java
@@ -26,14 +26,13 @@ import com.google.android.gms.maps.OnMapReadyCallback;
 import com.google.android.gms.maps.model.LatLng;
 import com.google.android.gms.maps.model.Marker;
 import com.google.android.gms.maps.model.MarkerOptions;
-import com.vanniktech.emoji.EmojiManager;
-import com.vanniktech.emoji.ios.IosEmojiProvider;
 
 import java.util.List;
 import java.util.Locale;
 
 import de.pixart.messenger.Config;
 import de.pixart.messenger.R;
+import de.pixart.messenger.services.EmojiService;
 
 public class ShowLocationActivity extends Activity implements OnMapReadyCallback {
 
@@ -71,8 +70,7 @@ public class ShowLocationActivity extends Activity implements OnMapReadyCallback
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        EmojiManager.install(new IosEmojiProvider());
-
+        new EmojiService(this).init();
         if (getActionBar() != null) {
             getActionBar().setHomeButtonEnabled(true);
             getActionBar().setDisplayHomeAsUpEnabled(true);
diff --git a/src/main/java/de/pixart/messenger/ui/StartUI.java b/src/main/java/de/pixart/messenger/ui/StartUI.java
index 102484756..08bd844ba 100644
--- a/src/main/java/de/pixart/messenger/ui/StartUI.java
+++ b/src/main/java/de/pixart/messenger/ui/StartUI.java
@@ -13,9 +13,6 @@ import android.support.v7.app.AlertDialog;
 import android.support.v7.app.AppCompatActivity;
 import android.util.Log;
 
-import com.vanniktech.emoji.EmojiManager;
-import com.vanniktech.emoji.ios.IosEmojiProvider;
-
 import java.util.List;
 
 import de.pixart.messenger.Config;
@@ -36,7 +33,6 @@ public class StartUI extends AppCompatActivity
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_start_ui);
-        EmojiManager.install(new IosEmojiProvider()); // This line needs to be executed before any usage of EmojiTextView or EmojiEditText.
         requestNeededPermissions();
     }
 
diff --git a/src/main/java/de/pixart/messenger/ui/XmppActivity.java b/src/main/java/de/pixart/messenger/ui/XmppActivity.java
index 36c4e20b3..44ef30a85 100644
--- a/src/main/java/de/pixart/messenger/ui/XmppActivity.java
+++ b/src/main/java/de/pixart/messenger/ui/XmppActivity.java
@@ -53,9 +53,6 @@ import android.widget.EditText;
 import android.widget.ImageView;
 import android.widget.Toast;
 
-import com.vanniktech.emoji.EmojiManager;
-import com.vanniktech.emoji.ios.IosEmojiProvider;
-
 import net.java.otr4j.session.SessionID;
 
 import java.io.FileNotFoundException;
@@ -404,7 +401,6 @@ public abstract class XmppActivity extends Activity {
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        EmojiManager.install(new IosEmojiProvider()); // This line needs to be executed before any usage of EmojiTextView or EmojiEditText.
         metrics = getResources().getDisplayMetrics();
         ExceptionHelper.init(getApplicationContext());
         mPrimaryTextColor = ContextCompat.getColor(this, R.color.black87);
diff --git a/src/main/java/de/pixart/messenger/ui/adapter/ConversationAdapter.java b/src/main/java/de/pixart/messenger/ui/adapter/ConversationAdapter.java
index 02b671e3d..c867dc068 100644
--- a/src/main/java/de/pixart/messenger/ui/adapter/ConversationAdapter.java
+++ b/src/main/java/de/pixart/messenger/ui/adapter/ConversationAdapter.java
@@ -29,6 +29,7 @@ import de.pixart.messenger.entities.MucOptions;
 import de.pixart.messenger.entities.Transferable;
 import de.pixart.messenger.ui.ConversationActivity;
 import de.pixart.messenger.ui.XmppActivity;
+import de.pixart.messenger.utils.EmojiWrapper;
 import de.pixart.messenger.utils.UIHelper;
 import de.pixart.messenger.xmpp.chatstate.ChatState;
 
@@ -82,7 +83,7 @@ public class ConversationAdapter extends ArrayAdapter<Conversation> {
         }
         ViewHolder viewHolder = ViewHolder.get(view);
         if (conversation.getMode() == Conversation.MODE_SINGLE || activity.useSubjectToIdentifyConference()) {
-            viewHolder.name.setText(conversation.getName());
+            viewHolder.name.setText(EmojiWrapper.transform(conversation.getName()));
         } else {
             viewHolder.name.setText(conversation.getJid().toBareJid().toString());
         }
@@ -142,7 +143,7 @@ public class ConversationAdapter extends ArrayAdapter<Conversation> {
 
             final Pair<String, Boolean> preview = UIHelper.getMessagePreview(activity, message);
             if (showPreviewText) {
-                viewHolder.lastMessage.setText(preview.first);
+                viewHolder.lastMessage.setText(EmojiWrapper.transform(preview.first));
             } else {
                 viewHolder.lastMessageIcon.setContentDescription(preview.first);
             }
diff --git a/src/main/java/de/pixart/messenger/ui/adapter/MessageAdapter.java b/src/main/java/de/pixart/messenger/ui/adapter/MessageAdapter.java
index 80d2b8f3a..dabf104bf 100644
--- a/src/main/java/de/pixart/messenger/ui/adapter/MessageAdapter.java
+++ b/src/main/java/de/pixart/messenger/ui/adapter/MessageAdapter.java
@@ -43,7 +43,6 @@ import android.widget.Toast;
 
 import com.bumptech.glide.Glide;
 import com.bumptech.glide.load.engine.DiskCacheStrategy;
-import com.vdurmont.emoji.EmojiManager;
 
 import java.io.UnsupportedEncodingException;
 import java.lang.ref.WeakReference;
@@ -76,6 +75,8 @@ import de.pixart.messenger.ui.widget.ClickableMovementMethod;
 import de.pixart.messenger.ui.widget.CopyTextView;
 import de.pixart.messenger.ui.widget.ListSelectionManager;
 import de.pixart.messenger.utils.CryptoHelper;
+import de.pixart.messenger.utils.EmojiWrapper;
+import de.pixart.messenger.utils.Emoticons;
 import de.pixart.messenger.utils.GeoHelper;
 import de.pixart.messenger.utils.Patterns;
 import de.pixart.messenger.utils.StylingHelper;
@@ -361,9 +362,9 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
         viewHolder.image.setVisibility(View.GONE);
         viewHolder.messageBody.setVisibility(View.VISIBLE);
         Spannable span = new SpannableString(body);
-        float size = EmojiManager.isEmoji(body) ? 3.0f : 2.0f;
+        float size = Emoticons.isEmoji(body) ? 3.0f : 2.0f;
         span.setSpan(new RelativeSizeSpan(size), 0, body.length(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
-        viewHolder.messageBody.setText(span);
+        viewHolder.messageBody.setText(EmojiWrapper.transform(span));
     }
 
     private void displayXmppMessage(final ViewHolder viewHolder, final String body) {
@@ -525,13 +526,19 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
                     body.setSpan(new StyleSpan(Typeface.BOLD), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
                 }
             }
+            Matcher matcher = Emoticons.generatePattern(body).matcher(body);
+            while (matcher.find()) {
+                if (matcher.start() < matcher.end()) {
+                    body.setSpan(new RelativeSizeSpan(1.5f), matcher.start(), matcher.end(), Spannable.SPAN_EXCLUSIVE_EXCLUSIVE);
+                }
+            }
             StylingHelper.format(body, viewHolder.messageBody.getCurrentTextColor());
             Linkify.addLinks(body, XMPP_PATTERN, "xmpp");
             Linkify.addLinks(body, Patterns.AUTOLINK_WEB_URL, "http", WEBURL_MATCH_FILTER, WEBURL_TRANSFORM_FILTER);
             Linkify.addLinks(body, GeoHelper.GEO_URI, "geo");
             FixedURLSpan.fix(body);
             viewHolder.messageBody.setAutoLinkMask(0);
-            viewHolder.messageBody.setText(body);
+            viewHolder.messageBody.setText(EmojiWrapper.transform(body));
             viewHolder.messageBody.setTextIsSelectable(true);
             viewHolder.messageBody.setMovementMethod(ClickableMovementMethod.getInstance());
             listSelectionManager.onUpdate(viewHolder.messageBody, message);
@@ -919,7 +926,7 @@ public class MessageAdapter extends ArrayAdapter<Message> implements CopyTextVie
             if (message.isGeoUri()) {
                 displayLocationMessage(viewHolder, message);
             } else if (message.bodyIsOnlyEmojis() && message.getType() != Message.TYPE_PRIVATE) {
-                displayEmojiMessage(viewHolder, message.getBody().replaceAll("\\s", ""));
+                displayEmojiMessage(viewHolder, message.getBody().trim());
             } else if (message.isXmppUri()) {
                 displayXmppMessage(viewHolder, message.getBody().trim());
             } else if (message.treatAsDownloadable()) {
diff --git a/src/main/java/de/pixart/messenger/ui/widget/CopyTextView.java b/src/main/java/de/pixart/messenger/ui/widget/CopyTextView.java
index ebd268bd0..ce126fa1f 100644
--- a/src/main/java/de/pixart/messenger/ui/widget/CopyTextView.java
+++ b/src/main/java/de/pixart/messenger/ui/widget/CopyTextView.java
@@ -6,10 +6,9 @@ import android.content.ClipboardManager;
 import android.content.Context;
 import android.os.Build;
 import android.util.AttributeSet;
+import android.widget.TextView;
 
-import com.vanniktech.emoji.EmojiTextView;
-
-public class CopyTextView extends EmojiTextView {
+public class CopyTextView extends TextView {
 
     public CopyTextView(Context context) {
         super(context);
diff --git a/src/main/java/de/pixart/messenger/ui/EditMessage.java b/src/main/java/de/pixart/messenger/ui/widget/EditMessage.java
index 46922b98a..3b9b50f1c 100644
--- a/src/main/java/de/pixart/messenger/ui/EditMessage.java
+++ b/src/main/java/de/pixart/messenger/ui/widget/EditMessage.java
@@ -1,10 +1,11 @@
-package de.pixart.messenger.ui;
+package de.pixart.messenger.ui.widget;
 
 import android.content.Context;
 import android.os.Build;
 import android.os.Bundle;
 import android.os.Handler;
 import android.support.annotation.Nullable;
+import android.support.text.emoji.widget.EmojiEditText;
 import android.support.v13.view.inputmethod.EditorInfoCompat;
 import android.support.v13.view.inputmethod.InputConnectionCompat;
 import android.support.v13.view.inputmethod.InputContentInfoCompat;
@@ -15,11 +16,10 @@ import android.util.AttributeSet;
 import android.view.KeyEvent;
 import android.view.inputmethod.EditorInfo;
 import android.view.inputmethod.InputConnection;
-import android.widget.EditText;
 
 import de.pixart.messenger.Config;
 
-public class EditMessage extends EditText {
+public class EditMessage extends EmojiEditText {
 
     private static final InputFilter SPAN_FILTER = new InputFilter() {
 
diff --git a/src/main/java/de/pixart/messenger/utils/EmojiWrapper.java b/src/main/java/de/pixart/messenger/utils/EmojiWrapper.java
new file mode 100644
index 000000000..db2bf1242
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/utils/EmojiWrapper.java
@@ -0,0 +1,43 @@
+/*
+ * Copyright (c) 2017, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package de.pixart.messenger.utils;
+
+import android.support.text.emoji.EmojiCompat;
+
+public class EmojiWrapper {
+
+    public static CharSequence transform(CharSequence input) {
+        final CharSequence charSequence;
+        if (EmojiCompat.get().getLoadState() == EmojiCompat.LOAD_STATE_SUCCEEDED) {
+            return EmojiCompat.get().process(input);
+        } else {
+            return input;
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/main/java/de/pixart/messenger/utils/Emoticons.java b/src/main/java/de/pixart/messenger/utils/Emoticons.java
new file mode 100644
index 000000000..8cfddf8a4
--- /dev/null
+++ b/src/main/java/de/pixart/messenger/utils/Emoticons.java
@@ -0,0 +1,282 @@
+/*
+ * Copyright (c) 2017, Daniel Gultsch All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ * this list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.
+ *
+ * 3. Neither the name of the copyright holder nor the names of its contributors
+ * may be used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
+ * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
+ * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
+ * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package de.pixart.messenger.utils;
+
+import java.util.ArrayList;
+import java.util.Arrays;
+import java.util.List;
+import java.util.regex.Pattern;
+
+public class Emoticons {
+
+    private static final UnicodeRange MISC_SYMBOLS_AND_PICTOGRAPHS = new UnicodeRange(0x1F300, 0x1F5FF);
+    private static final UnicodeRange SUPPLEMENTAL_SYMBOLS = new UnicodeRange(0x1F900, 0x1F9FF);
+    private static final UnicodeRange EMOTICONS = new UnicodeRange(0x1F600, 0x1F64F);
+    private static final UnicodeRange TRANSPORT_SYMBOLS = new UnicodeRange(0x1F680, 0x1F6FF);
+    private static final UnicodeRange MISC_SYMBOLS = new UnicodeRange(0x2600, 0x26FF);
+    private static final UnicodeRange DINGBATS = new UnicodeRange(0x2700, 0x27BF);
+    private static final UnicodeRange ENCLOSED_ALPHANUMERIC_SUPPLEMENT = new UnicodeRange(0x1F100, 0x1F1FF);
+    private static final UnicodeRange ENCLOSED_IDEOGRAPHIC_SUPPLEMENT = new UnicodeRange(0x1F200, 0x1F2FF);
+    private static final UnicodeRange REGIONAL_INDICATORS = new UnicodeRange(0x1F1E6, 0x1F1FF);
+    private static final UnicodeRange GEOMETRIC_SHAPES = new UnicodeRange(0x25A0, 0x25FF);
+    private static final UnicodeRange LATIN_SUPPLEMENT = new UnicodeRange(0x80, 0xFF);
+    private static final UnicodeRange MISC_TECHNICAL = new UnicodeRange(0x2300, 0x23FF);
+    private static final UnicodeRange TAGS = new UnicodeRange(0xE0020, 0xE007F);
+    private static final UnicodeList CYK_SYMBOLS_AND_PUNCTUATION = new UnicodeList(0x3030, 0x303D);
+    private static final UnicodeList LETTERLIKE_SYMBOLS = new UnicodeList(0x2122, 0x2139);
+
+    private static final UnicodeBlocks KEYCAP_COMBINEABLE = new UnicodeBlocks(new UnicodeList(0x23), new UnicodeList(0x2A), new UnicodeRange(0x30, 0x39));
+
+    private static final UnicodeBlocks SYMBOLIZE = new UnicodeBlocks(
+            GEOMETRIC_SHAPES,
+            LATIN_SUPPLEMENT,
+            CYK_SYMBOLS_AND_PUNCTUATION,
+            LETTERLIKE_SYMBOLS,
+            KEYCAP_COMBINEABLE);
+    private static final UnicodeBlocks EMOJIS = new UnicodeBlocks(
+            MISC_SYMBOLS_AND_PICTOGRAPHS,
+            SUPPLEMENTAL_SYMBOLS,
+            EMOTICONS,
+            TRANSPORT_SYMBOLS,
+            MISC_SYMBOLS,
+            DINGBATS,
+            ENCLOSED_ALPHANUMERIC_SUPPLEMENT,
+            ENCLOSED_IDEOGRAPHIC_SUPPLEMENT,
+            MISC_TECHNICAL);
+    private static final int ZWJ = 0x200D;
+    private static final int VARIATION_16 = 0xFE0F;
+    private static final int COMBINING_ENCLOSING_KEYCAP = 0x20E3;
+    private static final int BLACK_FLAG = 0x1F3F4;
+    private static final UnicodeRange FITZPATRICK = new UnicodeRange(0x1F3FB, 0x1F3FF);
+
+    private static List<Symbol> parse(String input) {
+        List<Symbol> symbols = new ArrayList<>();
+        Builder builder = new Builder();
+        boolean needsFinalBuild = false;
+        for (int cp, i = 0; i < input.length(); i += Character.charCount(cp)) {
+            cp = input.codePointAt(i);
+            if (builder.offer(cp)) {
+                needsFinalBuild = true;
+            } else {
+                symbols.add(builder.build());
+                builder = new Builder();
+                if (builder.offer(cp)) {
+                    needsFinalBuild = true;
+                }
+            }
+        }
+        if (needsFinalBuild) {
+            symbols.add(builder.build());
+        }
+        return symbols;
+    }
+
+    public static Pattern generatePattern(CharSequence input) {
+        final StringBuilder pattern = new StringBuilder();
+        for (Symbol symbol : parse(input.toString())) {
+            if (symbol instanceof Emoji) {
+                if (pattern.length() != 0) {
+                    pattern.append('|');
+                }
+                pattern.append(Pattern.quote(symbol.toString()));
+            }
+        }
+        return Pattern.compile(pattern.toString());
+    }
+
+    public static boolean isEmoji(String input) {
+        List<Symbol> symbols = parse(input);
+        return symbols.size() == 1 && symbols.get(0).isEmoji();
+    }
+
+    public static boolean isOnlyEmoji(String input) {
+        List<Symbol> symbols = parse(input);
+        for (Symbol symbol : symbols) {
+            if (!symbol.isEmoji()) {
+                return false;
+            }
+        }
+        return symbols.size() > 0;
+    }
+
+    private static abstract class Symbol {
+
+        private final String value;
+
+        public Symbol(List<Integer> codepoints) {
+            StringBuilder builder = new StringBuilder();
+            for (Integer codepoint : codepoints) {
+                builder.appendCodePoint(codepoint);
+            }
+            this.value = builder.toString();
+        }
+
+        abstract boolean isEmoji();
+
+        @Override
+        public String toString() {
+            return value;
+        }
+    }
+
+    public static class Emoji extends Symbol {
+
+        public Emoji(List<Integer> codepoints) {
+            super(codepoints);
+        }
+
+        @Override
+        boolean isEmoji() {
+            return true;
+        }
+    }
+
+    public static class Other extends Symbol {
+
+        public Other(List<Integer> codepoints) {
+            super(codepoints);
+        }
+
+        @Override
+        boolean isEmoji() {
+            return false;
+        }
+    }
+
+    private static class Builder {
+        private final List<Integer> codepoints = new ArrayList<>();
+
+
+        public boolean offer(int codepoint) {
+            boolean add = false;
+            if (this.codepoints.size() == 0) {
+                if (SYMBOLIZE.contains(codepoint)) {
+                    add = true;
+                } else if (REGIONAL_INDICATORS.contains(codepoint)) {
+                    add = true;
+                } else if (EMOJIS.contains(codepoint) && !FITZPATRICK.contains(codepoint) && codepoint != ZWJ) {
+                    add = true;
+                }
+            } else {
+                int previous = codepoints.get(codepoints.size() - 1);
+                if (codepoints.get(0) == BLACK_FLAG) {
+                    add = TAGS.contains(codepoint);
+                } else if (COMBINING_ENCLOSING_KEYCAP == codepoint) {
+                    add = KEYCAP_COMBINEABLE.contains(previous) || previous == VARIATION_16;
+                } else if (SYMBOLIZE.contains(previous)) {
+                    add = codepoint == VARIATION_16;
+                } else if (REGIONAL_INDICATORS.contains(previous) && REGIONAL_INDICATORS.contains(codepoint)) {
+                    add = codepoints.size() == 1;
+                } else if (previous == VARIATION_16) {
+                    add = isMerger(codepoint);
+                } else if (FITZPATRICK.contains(previous)) {
+                    add = codepoint == ZWJ;
+                } else if (ZWJ == previous) {
+                    add = EMOJIS.contains(codepoint);
+                } else if (isMerger(codepoint)) {
+                    add = true;
+                } else if (codepoint == VARIATION_16 && EMOJIS.contains(previous)) {
+                    add = true;
+                }
+            }
+            if (add) {
+                codepoints.add(codepoint);
+                return true;
+            } else {
+                return false;
+            }
+        }
+
+        static boolean isMerger(int codepoint) {
+            return codepoint == ZWJ || FITZPATRICK.contains(codepoint);
+        }
+
+        public Symbol build() {
+            if (codepoints.size() > 0 && SYMBOLIZE.contains(codepoints.get(codepoints.size() - 1))) {
+                return new Other(codepoints);
+            } else if (codepoints.size() > 1 && KEYCAP_COMBINEABLE.contains(codepoints.get(0)) && codepoints.get(codepoints.size() - 1) != COMBINING_ENCLOSING_KEYCAP) {
+                return new Other(codepoints);
+            }
+            return codepoints.size() == 0 ? new Other(codepoints) : new Emoji(codepoints);
+        }
+    }
+
+    public static class UnicodeBlocks implements UnicodeSet {
+        final UnicodeSet[] unicodeSets;
+
+        public UnicodeBlocks(UnicodeSet... sets) {
+            this.unicodeSets = sets;
+        }
+
+        @Override
+        public boolean contains(int codepoint) {
+            for(UnicodeSet unicodeSet : unicodeSets) {
+                if (unicodeSet.contains(codepoint)) {
+                    return true;
+                }
+            }
+            return false;
+        }
+    }
+
+    public interface UnicodeSet {
+        boolean contains(int codepoint);
+    }
+
+    public static class UnicodeList implements UnicodeSet {
+
+        private final List<Integer> list;
+
+        public UnicodeList(Integer... codes) {
+            this.list = Arrays.asList(codes);
+        }
+
+        @Override
+        public boolean contains(int codepoint) {
+            return this.list.contains(codepoint);
+        }
+    }
+
+
+    public static class UnicodeRange implements UnicodeSet {
+
+        private final int lower;
+        private final int upper;
+
+        UnicodeRange(int lower, int upper) {
+            this.lower = lower;
+            this.upper = upper;
+        }
+
+        public boolean contains(int codePoint) {
+            return codePoint >= lower && codePoint <= upper;
+        }
+    }
+}
\ No newline at end of file