218 lines
7.0 KiB
Java
218 lines
7.0 KiB
Java
package app.fedilab.android.client.mastodon.entities;
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/* Copyright 2021 Thomas Schneider
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*
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* This file is a part of Fedilab
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*
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* This program is free software; you can redistribute it and/or modify it under the terms of the
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* GNU General Public License as published by the Free Software Foundation; either version 3 of the
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* License, or (at your option) any later version.
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*
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* Fedilab is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even
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* the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
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* Public License for more details.
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*
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* You should have received a copy of the GNU General Public License along with Fedilab; if not,
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* see <http://www.gnu.org/licenses>. */
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import android.content.ContentValues;
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import android.content.Context;
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import android.database.Cursor;
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import android.database.sqlite.SQLiteDatabase;
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import com.google.gson.Gson;
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import com.google.gson.annotations.SerializedName;
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import com.google.gson.reflect.TypeToken;
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import java.io.Serializable;
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import java.util.ArrayList;
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import java.util.List;
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import app.fedilab.android.exception.DBException;
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import app.fedilab.android.sqlite.Sqlite;
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public class EmojiInstance implements Serializable {
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private final SQLiteDatabase db;
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@SerializedName("instance")
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public String instance;
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@SerializedName("emojiList")
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public List<Emoji> emojiList;
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private Context context;
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public EmojiInstance() {
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db = null;
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}
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public EmojiInstance(Context context) {
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//Creation of the DB with tables
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this.context = context;
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this.db = Sqlite.getInstance(context.getApplicationContext(), Sqlite.DB_NAME, null, Sqlite.DB_VERSION).open();
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}
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/**
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* Serialized a list of Emoji class
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*
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* @param emojis List of {@link Emoji} to serialize
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* @return String serialized emoji list
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*/
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public static String mastodonEmojiListToStringStorage(List<Emoji> emojis) {
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Gson gson = new Gson();
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try {
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return gson.toJson(emojis);
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* Unserialized a Emoji List
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*
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* @param serializedEmojiList String serialized account
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* @return List of {@link Emoji}
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*/
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public static List<Emoji> restoreEmojiListFromString(String serializedEmojiList) {
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Gson gson = new Gson();
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try {
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return gson.fromJson(serializedEmojiList, new TypeToken<List<Emoji>>() {
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}.getType());
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* Insert or update emoji
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*
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* @param emojiInstance {@link EmojiInstance}
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* @return long - db id
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* @throws DBException exception with database
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*/
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public long insertOrUpdate(EmojiInstance emojiInstance) throws DBException {
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if (db == null) {
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throw new DBException("db is null. Wrong initialization.");
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}
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if (emojiInstance == null) {
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return -1;
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}
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boolean exists = emojiInstanceExist(emojiInstance);
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long idReturned;
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if (exists) {
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idReturned = updateEmojiInstance(emojiInstance);
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} else {
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idReturned = insertEmojiInstance(emojiInstance);
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}
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return idReturned;
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}
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/**
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* Check if emojis exists in db
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*
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* @param emojiInstance EmojiInstance {@link EmojiInstance}
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* @return boolean - emojiInstance exists
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* @throws DBException Exception
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*/
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public boolean emojiInstanceExist(EmojiInstance emojiInstance) throws DBException {
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if (db == null) {
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throw new DBException("db is null. Wrong initialization.");
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}
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Cursor mCount = db.rawQuery("select count(*) from " + Sqlite.TABLE_EMOJI_INSTANCE
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+ " where " + Sqlite.COL_INSTANCE + " = '" + emojiInstance.instance + "'", null);
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mCount.moveToFirst();
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int count = mCount.getInt(0);
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mCount.close();
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return (count > 0);
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}
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/**
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* Insert emojis in db
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*
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* @param emojiInstance {@link EmojiInstance}
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* @return long - db id
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* @throws DBException exception with database
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*/
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private long insertEmojiInstance(EmojiInstance emojiInstance) throws DBException {
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if (db == null) {
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throw new DBException("db is null. Wrong initialization.");
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}
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ContentValues values = new ContentValues();
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values.put(Sqlite.COL_INSTANCE, emojiInstance.instance);
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values.put(Sqlite.COL_EMOJI_LIST, mastodonEmojiListToStringStorage(emojiInstance.emojiList));
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//Inserts token
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try {
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return db.insertOrThrow(Sqlite.TABLE_EMOJI_INSTANCE, null, values);
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} catch (Exception e) {
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e.printStackTrace();
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return -1;
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}
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}
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/**
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* update emojis in db
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*
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* @param emojiInstance {@link EmojiInstance}
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* @return long - db id
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* @throws DBException exception with database
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*/
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private long updateEmojiInstance(EmojiInstance emojiInstance) throws DBException {
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if (db == null) {
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throw new DBException("db is null. Wrong initialization.");
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}
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ContentValues values = new ContentValues();
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values.put(Sqlite.COL_EMOJI_LIST, mastodonEmojiListToStringStorage(emojiInstance.emojiList));
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//Inserts token
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try {
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return db.update(Sqlite.TABLE_EMOJI_INSTANCE,
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values, Sqlite.COL_INSTANCE + " = ?",
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new String[]{emojiInstance.instance});
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} catch (Exception e) {
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e.printStackTrace();
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return -1;
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}
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}
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/**
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* Returns the emojis for an instance
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*
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* @param instance String
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* @return List<Emoji> - List of {@link Emoji}
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*/
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public List<Emoji> getEmojiList(String instance) throws DBException {
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if (db == null) {
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throw new DBException("db is null. Wrong initialization.");
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}
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try {
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Cursor c = db.query(Sqlite.TABLE_EMOJI_INSTANCE, null, Sqlite.COL_INSTANCE + " = '" + instance + "'", null, null, null, null, "1");
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return cursorToEmojiList(c);
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} catch (Exception e) {
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return null;
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}
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}
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/**
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* Restore emoji list from db
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*
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* @param c Cursor
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* @return List<Emoji>
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*/
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private List<Emoji> cursorToEmojiList(Cursor c) {
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//No element found
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if (c.getCount() == 0) {
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c.close();
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return null;
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}
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//Take the first element
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c.moveToFirst();
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List<Emoji> emojiList = restoreEmojiListFromString(c.getString(c.getColumnIndexOrThrow(Sqlite.COL_EMOJI_LIST)));
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c.close();
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List<Emoji> filteredEmojis = new ArrayList<>();
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if (emojiList != null) {
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for (Emoji emoji : emojiList) {
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if (emoji.visible_in_picker) {
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filteredEmojis.add(emoji);
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}
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}
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}
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return filteredEmojis;
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}
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}
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