Use vanniktech emoji library.

bramble-api/src/main/java/org/briarproject/bramble/api/settings/SettingsManager.java

 package org.briarproject.bramble.api.settings;
 
 import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.nullsafety.NotNullByDefault;
 
 @NotNullByDefault
@@ -11,6 +12,11 @@ public interface SettingsManager {
 	 */
 	Settings getSettings(String namespace) throws DbException;
 
+	/**
+	 * Returns all settings in the given namespace.
+	 */
+	Settings getSettings(Transaction txn, String namespace) throws DbException;
+
 	/**
 	 * Merges the given settings with any existing settings in the given
 	 * namespace.

bramble-core/src/main/java/org/briarproject/bramble/settings/SettingsManagerImpl.java

@@ -34,6 +34,12 @@ class SettingsManagerImpl implements SettingsManager {
 		return s;
 	}
 
+	@Override
+	public Settings getSettings(Transaction txn, String namespace)
+			throws DbException {
+		return db.getSettings(txn, namespace);
+	}
+
 	@Override
 	public void mergeSettings(Settings s, String namespace) throws DbException {
 		Transaction txn = db.startTransaction(false);

briar-android/build.gradle

@@ -31,9 +31,8 @@ dependencies {
 	implementation 'info.guardianproject.trustedintents:trustedintents:0.2'
 	implementation 'de.hdodenhof:circleimageview:2.2.0'
 	implementation 'com.google.zxing:core:3.3.0'
-	implementation 'com.jpardogo.materialtabstrip:library:1.1.0'
-	implementation 'com.github.bumptech.glide:glide:3.8.0'
 	implementation 'uk.co.samuelwall:material-tap-target-prompt:2.8.0'
+	implementation 'com.vanniktech:emoji-google:0.5.1'
 
 	annotationProcessor 'com.google.dagger:dagger-compiler:2.0.2'
 
@@ -80,7 +79,7 @@ android {
 	buildToolsVersion '27.0.3'
 
 	defaultConfig {
-		minSdkVersion 14
+		minSdkVersion 15
 		targetSdkVersion 26
 		versionCode 10013
 		versionName "1.0.13"

briar-android/proguard-rules.txt

@@ -27,9 +27,4 @@
 -dontnote org.thoughtcrime.securesms.components.KeyboardAwareLinearLayout
 
 # Emoji
--keep class org.thoughtcrime.securesms.**
--keep class com.astuetz.PagerSlidingTabStrip$OnTabReselectedListener
--keep public enum com.bumptech.glide.load.resource.bitmap.ImageHeaderParser$** {
-    **[] $VALUES;
-    public *;
-}
+-keep class com.vanniktech.emoji.**

briar-android/src/main/java/org/briarproject/briar/android/AndroidComponent.java

@@ -28,6 +28,7 @@ import org.briarproject.briar.BriarCoreEagerSingletons;
 import org.briarproject.briar.BriarCoreModule;
 import org.briarproject.briar.android.login.SignInReminderReceiver;
 import org.briarproject.briar.android.reporting.BriarReportSender;
+import org.briarproject.briar.android.view.TextInputView;
 import org.briarproject.briar.api.android.AndroidNotificationManager;
 import org.briarproject.briar.api.android.DozeWatchdog;
 import org.briarproject.briar.api.android.LockManager;
@@ -49,8 +50,6 @@ import org.briarproject.briar.api.privategroup.PrivateGroupManager;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationFactory;
 import org.briarproject.briar.api.privategroup.invitation.GroupInvitationManager;
 import org.briarproject.briar.api.test.TestDataCreator;
-import org.thoughtcrime.securesms.components.emoji.EmojiProvider;
-import org.thoughtcrime.securesms.components.emoji.RecentEmojiPageModel;
 
 import java.util.concurrent.Executor;
 
@@ -161,12 +160,10 @@ public interface AndroidComponent
 
 	void inject(BriarReportSender briarReportSender);
 
-	void inject(EmojiProvider emojiProvider);
-
-	void inject(RecentEmojiPageModel recentEmojiPageModel);
-
 	void inject(NotificationCleanupService notificationCleanupService);
 
+	void inject(TextInputView textInputView);
+
 	// Eager singleton load
 	void inject(AppModule.EagerSingletons init);
 }

briar-android/src/main/java/org/briarproject/briar/android/AppModule.java

@@ -5,6 +5,8 @@ import android.content.Context;
 import android.content.SharedPreferences;
 import android.os.StrictMode;
 
+import com.vanniktech.emoji.RecentEmoji;
+
 import org.briarproject.bramble.api.crypto.CryptoComponent;
 import org.briarproject.bramble.api.crypto.PublicKey;
 import org.briarproject.bramble.api.db.DatabaseConfig;
@@ -65,6 +67,8 @@ public class AppModule {
 		NetworkUsageLogger networkUsageLogger;
 		@Inject
 		DozeWatchdog dozeWatchdog;
+		@Inject
+		RecentEmoji recentEmoji;
 	}
 
 	private final Application application;
@@ -211,4 +215,11 @@ public class AppModule {
 		return lockManager;
 	}
 
+	@Provides
+	@Singleton
+	RecentEmoji provideRecentEmoji(LifecycleManager lifecycleManager,
+			RecentEmojiImpl recentEmoji) {
+		lifecycleManager.registerClient(recentEmoji);
+		return recentEmoji;
+	}
 }

briar-android/src/main/java/org/briarproject/briar/android/BriarApplicationImpl.java

@@ -9,6 +9,9 @@ import android.os.StrictMode.ThreadPolicy;
 import android.os.StrictMode.VmPolicy;
 import android.preference.PreferenceManager;
 
+import com.vanniktech.emoji.EmojiManager;
+import com.vanniktech.emoji.google.GoogleEmojiProvider;
+
 import org.acra.ACRA;
 import org.acra.ReportingInteractionMode;
 import org.acra.annotation.ReportsCrashes;
@@ -89,6 +92,7 @@ public class BriarApplicationImpl extends Application
 				Localizer.getInstance().setLocale(base));
 		setTheme(base, prefs);
 		ACRA.init(this);
+		EmojiManager.install(new GoogleEmojiProvider());
 	}
 
 	@Override

briar-android/src/main/java/org/thoughtcrime/securesms/components/emoji/RecentEmojiPageModel.java → briar-android/src/main/java/org/briarproject/briar/android/RecentEmojiImpl.java

-package org.thoughtcrime.securesms.components.emoji;
+package org.briarproject.briar.android;
 
-import android.content.Context;
-import android.support.annotation.DrawableRes;
+import com.vanniktech.emoji.EmojiRange;
+import com.vanniktech.emoji.EmojiUtils;
+import com.vanniktech.emoji.RecentEmoji;
+import com.vanniktech.emoji.emoji.Emoji;
 
 import org.briarproject.bramble.api.db.DatabaseExecutor;
 import org.briarproject.bramble.api.db.DbException;
+import org.briarproject.bramble.api.db.Transaction;
 import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
 import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.bramble.api.settings.Settings;
 import org.briarproject.bramble.api.settings.SettingsManager;
+import org.briarproject.bramble.api.sync.Client;
+import org.briarproject.bramble.api.system.AndroidExecutor;
 import org.briarproject.bramble.util.StringUtils;
-import org.briarproject.briar.R;
-import org.briarproject.briar.android.BriarApplication;
 
-import java.util.Collections;
+import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Iterator;
 import java.util.LinkedHashSet;
 import java.util.concurrent.Executor;
 import java.util.logging.Logger;
 
-import javax.annotation.Nullable;
 import javax.inject.Inject;
 
 import static java.util.logging.Level.WARNING;
@@ -28,85 +31,72 @@ import static org.briarproject.briar.android.settings.SettingsFragment.SETTINGS_
 
 @MethodsNotNullByDefault
 @ParametersNotNullByDefault
-public class RecentEmojiPageModel implements EmojiPageModel {
+class RecentEmojiImpl implements RecentEmoji, Client {
 
 	private static final Logger LOG =
-			Logger.getLogger(RecentEmojiPageModel.class.getName());
+			Logger.getLogger(RecentEmojiImpl.class.getName());
 
 	private static final String EMOJI_LRU_PREFERENCE = "pref_emoji_recent2";
 	private static final int EMOJI_LRU_SIZE = 50;
 
-	private final LinkedHashSet<String> recentlyUsed; // UI thread
+	// UI thread
+	private final LinkedHashSet<Emoji> recentlyUsed = new LinkedHashSet<>();
 
-	@Inject
-	SettingsManager settingsManager;
+	private final Executor dbExecutor;
+	private final AndroidExecutor androidExecutor;
+	private final SettingsManager settingsManager;
 
 	@Inject
-	@DatabaseExecutor
-	Executor dbExecutor;
-
-	RecentEmojiPageModel(Context context) {
-		BriarApplication app =
-				(BriarApplication) context.getApplicationContext();
-		app.getApplicationComponent().inject(this);
-		recentlyUsed = getPersistedCache();
-	}
-
-	private LinkedHashSet<String> getPersistedCache() {
-		String serialized;
-		try {
-			// FIXME: Don't make DB calls on the UI thread
-			Settings settings = settingsManager.getSettings(SETTINGS_NAMESPACE);
-			serialized = settings.get(EMOJI_LRU_PREFERENCE);
-		} catch (DbException e) {
-			logException(LOG, WARNING, e);
-			serialized = null;
-		}
-		return deserialize(serialized);
+	RecentEmojiImpl(@DatabaseExecutor Executor dbExecutor,
+			AndroidExecutor androidExecutor, SettingsManager settingsManager) {
+		this.dbExecutor = dbExecutor;
+		this.androidExecutor = androidExecutor;
+		this.settingsManager = settingsManager;
 	}
 
-	@DrawableRes
 	@Override
-	public int getIcon() {
-		return R.drawable.ic_emoji_recent;
+	public Collection<Emoji> getRecentEmojis() {
+		return new ArrayList<>(recentlyUsed);
 	}
 
 	@Override
-	public String[] getEmoji() {
-		return toReversePrimitiveArray(recentlyUsed);
-	}
-
-	@Override
-	public boolean hasSpriteMap() {
-		return false;
-	}
-
-	@Override
-	public String getSprite() {
-		return null;
-	}
-
-	void onCodePointSelected(String emoji) {
+	public void addEmoji(Emoji emoji) {
 		recentlyUsed.remove(emoji);
 		recentlyUsed.add(emoji);
 
 		if (recentlyUsed.size() > EMOJI_LRU_SIZE) {
-			Iterator<String> iterator = recentlyUsed.iterator();
+			Iterator<Emoji> iterator = recentlyUsed.iterator();
 			iterator.next();
 			iterator.remove();
 		}
-		save(serialize(recentlyUsed));
 	}
 
-	private String serialize(LinkedHashSet<String> emojis) {
-		return StringUtils.join(emojis, "\t");
+	@Override
+	public void persist() {
+		if (!recentlyUsed.isEmpty()) save(serialize(recentlyUsed));
+	}
+
+	@Override
+	public void createLocalState(Transaction txn) throws DbException {
+		Settings settings =
+				settingsManager.getSettings(txn, SETTINGS_NAMESPACE);
+		String serialized = settings.get(EMOJI_LRU_PREFERENCE);
+		if (serialized != null) {
+			androidExecutor.runOnUiThread(() ->
+					recentlyUsed.addAll(deserialize(serialized)));
+		}
 	}
 
-	private LinkedHashSet<String> deserialize(@Nullable String serialized) {
-		if (serialized == null) return new LinkedHashSet<>();
-		String[] list = serialized.split("\t");
-		LinkedHashSet<String> result = new LinkedHashSet<>(list.length);
-		Collections.addAll(result, list);
+	private String serialize(Collection<Emoji> emojis) {
+		Collection<String> strings = new ArrayList<>(emojis.size());
+		for (Emoji emoji : emojis) strings.add(emoji.getUnicode());
+		return StringUtils.join(strings, "\t");
+	}
+
+	private Collection<Emoji> deserialize(String serialized) {
+		Collection<EmojiRange> ranges = EmojiUtils.emojis(serialized);
+		Collection<Emoji> result = new ArrayList<>(ranges.size());
+		for (EmojiRange range : ranges) result.add(range.emoji);
 		return result;
 	}
 
@@ -121,13 +111,4 @@ public class RecentEmojiPageModel implements EmojiPageModel {
 			}
 		});
 	}
-
-	private String[] toReversePrimitiveArray(LinkedHashSet<String> emojiSet) {
-		String[] emojis = new String[emojiSet.size()];
-		int i = emojiSet.size() - 1;
-		for (String emoji : emojiSet) {
-			emojis[i--] = emoji;
-		}
-		return emojis;
-	}
 }

briar-android/src/main/java/org/briarproject/briar/android/privategroup/conversation/GroupActivity.java

@@ -202,7 +202,6 @@ public class GroupActivity extends
 		if (!enabled) {
 			textInput.setVisibility(GONE);
 			if (textInput.isKeyboardOpen()) textInput.hideSoftKeyboard();
-			if (textInput.isEmojiDrawerOpen()) textInput.hideEmojiDrawer();
 		} else {
 			textInput.setVisibility(VISIBLE);
 		}

briar-android/src/main/java/org/briarproject/briar/android/view/LargeTextInputView.java

@@ -8,6 +8,8 @@ import android.view.LayoutInflater;
 import android.view.ViewGroup;
 import android.widget.Button;
 
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
 
 import javax.annotation.Nullable;
@@ -15,6 +17,8 @@ import javax.annotation.Nullable;
 import static android.view.ViewGroup.LayoutParams.MATCH_PARENT;
 
 @UiThread
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
 public class LargeTextInputView extends TextInputView {
 
 	public LargeTextInputView(Context context) {
@@ -46,30 +50,28 @@ public class LargeTextInputView extends TextInputView {
 				R.styleable.LargeTextInputView);
 		String buttonText =
 				attributes.getString(R.styleable.LargeTextInputView_buttonText);
-		int maxLines =
-				attributes
-						.getInteger(R.styleable.LargeTextInputView_maxLines, 0);
+		int maxLines = attributes
+				.getInteger(R.styleable.LargeTextInputView_maxLines, 0);
 		boolean fillHeight = attributes
-				.getBoolean(R.styleable.LargeTextInputView_fillHeight,
-						false);
+				.getBoolean(R.styleable.LargeTextInputView_fillHeight, false);
 		attributes.recycle();
 
 		if (buttonText != null) setButtonText(buttonText);
-		if (maxLines > 0) ui.editText.setMaxLines(maxLines);
+		if (maxLines > 0) editText.setMaxLines(maxLines);
 		if (fillHeight) {
 			ViewGroup layout = findViewById(R.id.input_layout);
 			LayoutParams params = (LayoutParams) layout.getLayoutParams();
 			params.height = 0;
 			params.weight = 1;
 			layout.setLayoutParams(params);
-			ViewGroup.LayoutParams editParams = ui.editText.getLayoutParams();
+			ViewGroup.LayoutParams editParams = editText.getLayoutParams();
 			editParams.height = MATCH_PARENT;
-			ui.editText.setLayoutParams(editParams);
+			editText.setLayoutParams(editParams);
 		}
 	}
 
 	public void setButtonText(String text) {
-		((Button) ui.sendButton).setText(text);
+		((Button) sendButton).setText(text);
 	}
 
 }

briar-android/src/main/java/org/briarproject/briar/android/view/TextInputView.java

@@ -8,35 +8,47 @@ import android.os.IBinder;
 import android.support.annotation.CallSuper;
 import android.support.annotation.StringRes;
 import android.support.annotation.UiThread;
+import android.support.v7.widget.AppCompatImageButton;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.util.AttributeSet;
-import android.view.KeyEvent;
 import android.view.LayoutInflater;
 import android.view.View;
 import android.view.inputmethod.InputMethodManager;
 
+import com.vanniktech.emoji.EmojiEditText;
+import com.vanniktech.emoji.EmojiPopup;
+import com.vanniktech.emoji.RecentEmoji;
+
+import org.briarproject.bramble.api.nullsafety.MethodsNotNullByDefault;
+import org.briarproject.bramble.api.nullsafety.ParametersNotNullByDefault;
 import org.briarproject.briar.R;
+import org.briarproject.briar.android.BriarApplication;
 import org.thoughtcrime.securesms.components.KeyboardAwareLinearLayout;
-import org.thoughtcrime.securesms.components.emoji.EmojiDrawer;
-import org.thoughtcrime.securesms.components.emoji.EmojiDrawer.EmojiEventListener;
-import org.thoughtcrime.securesms.components.emoji.EmojiEditText;
-import org.thoughtcrime.securesms.components.emoji.EmojiToggle;
 
 import javax.annotation.Nullable;
+import javax.inject.Inject;
 
 import static android.content.Context.INPUT_METHOD_SERVICE;
 import static android.content.Context.LAYOUT_INFLATER_SERVICE;
-import static android.view.KeyEvent.KEYCODE_BACK;
 import static android.view.KeyEvent.KEYCODE_ENTER;
 import static android.view.inputmethod.InputMethodManager.SHOW_IMPLICIT;
 
 @UiThread
-public class TextInputView extends KeyboardAwareLinearLayout
-		implements EmojiEventListener {
+@MethodsNotNullByDefault
+@ParametersNotNullByDefault
+public class TextInputView extends KeyboardAwareLinearLayout {
+
+	@Inject
+	RecentEmoji recentEmoji;
+
+	@Nullable
+	TextInputListener listener;
 
-	protected final ViewHolder ui;
-	protected TextInputListener listener;
+	AppCompatImageButton emojiToggle;
+	EmojiEditText editText;
+	EmojiPopup emojiPopup;
+	View sendButton;
 
 	public TextInputView(Context context) {
 		this(context, null);
@@ -49,11 +61,12 @@ public class TextInputView extends KeyboardAwareLinearLayout
 	public TextInputView(Context context, @Nullable AttributeSet attrs,
 			int defStyleAttr) {
 		super(context, attrs, defStyleAttr);
+		BriarApplication app =
+				(BriarApplication) context.getApplicationContext();
+		app.getApplicationComponent().inject(this);
 		setOrientation(VERTICAL);
 		setLayoutTransition(new LayoutTransition());
-
 		inflateLayout(context);
-		ui = new ViewHolder();
 		setUpViews(context, attrs);
 	}
 
@@ -65,89 +78,79 @@ public class TextInputView extends KeyboardAwareLinearLayout
 
 	@CallSuper
 	protected void setUpViews(Context context, @Nullable AttributeSet attrs) {
+		emojiToggle = findViewById(R.id.emoji_toggle);
+		editText = findViewById(R.id.input_text);
+		emojiPopup = EmojiPopup.Builder
+				.fromRootView(this)
+				.setRecentEmoji(recentEmoji)
+				.setOnEmojiPopupShownListener(this::showKeyboardIcon)
+				.setOnEmojiPopupDismissListener(this::showEmojiIcon)
+				.build(editText);
+		sendButton = findViewById(R.id.btn_send);
+
 		// get attributes
 		TypedArray attributes = context.obtainStyledAttributes(attrs,
 				R.styleable.TextInputView);
 		String hint = attributes.getString(R.styleable.TextInputView_hint);
 		attributes.recycle();
 
-		if (hint != null) {
-			ui.editText.setHint(hint);
-		}
+		if (hint != null) editText.setHint(hint);
 
-		ui.emojiToggle.attach(ui.emojiDrawer);
-		ui.emojiToggle.setOnClickListener(v -> onEmojiToggleClicked());
-		ui.editText.setOnClickListener(v -> showSoftKeyboard());
-		ui.editText.setOnKeyListener((v, keyCode, event) -> {
-			if (keyCode == KEYCODE_BACK && isEmojiDrawerOpen()) {
-				hideEmojiDrawer();
-				return true;
-			}
+		emojiToggle.setOnClickListener(v -> emojiPopup.toggle());
+		editText.setOnClickListener(v -> showSoftKeyboard());
+		editText.setOnKeyListener((v, keyCode, event) -> {
 			if (keyCode == KEYCODE_ENTER && event.isCtrlPressed()) {
 				trySendMessage();
 				return true;
 			}
 			return false;
 		});
-		ui.sendButton.setOnClickListener(v -> trySendMessage());
-		ui.emojiDrawer.setEmojiEventListener(this);
+		sendButton.setOnClickListener(v -> trySendMessage());
 	}
 
-	private void trySendMessage() {
-		if (listener != null) {
-			listener.onSendClick(ui.editText.getText().toString());
-		}
+	private void showEmojiIcon() {
+		emojiToggle.setImageResource(R.drawable.ic_emoji_toggle);
 	}
 
-	@Override
-	public void setVisibility(int visibility) {
-		if (visibility == GONE && isKeyboardOpen()) {
-			onKeyboardClose();
-		}
-		super.setVisibility(visibility);
+	private void showKeyboardIcon() {
+		emojiToggle.setImageResource(R.drawable.ic_keyboard);
 	}
 
-	@Override
-	public void onKeyEvent(KeyEvent keyEvent) {
-		ui.editText.dispatchKeyEvent(keyEvent);
-	}
-
-	@Override
-	public void onEmojiSelected(String emoji) {
-		ui.editText.insertEmoji(emoji);
+	private void trySendMessage() {
+		if (listener != null) {
+			listener.onSendClick(editText.getText().toString());
+		}
 	}
 
 	@Override
 	public boolean requestFocus(int direction, Rect previouslyFocusedRect) {
-		return ui.editText.requestFocus(direction, previouslyFocusedRect);
+		return editText.requestFocus(direction, previouslyFocusedRect);
 	}
 
-	private void onEmojiToggleClicked() {
-		if (isEmojiDrawerOpen()) {
-			showSoftKeyboard();
-		} else {
-			showEmojiDrawer();
-		}
+	@Override
+	public void onDetachedFromWindow() {
+		super.onDetachedFromWindow();
+		if (emojiPopup.isShowing()) emojiPopup.dismiss();
 	}
 
 	public void setText(String text) {
-		ui.editText.setText(text);
+		editText.setText(text);
 	}
 
 	public Editable getText() {
-		return ui.editText.getText();
+		return editText.getText();