Meshtastic-Android/app/src/main/java/com/geeksville/mesh/util/CustomRecentEmojiProvider.kt
2025-01-02 07:00:51 -03:00

65 lines
2.4 KiB
Kotlin

/*
* Copyright (c) 2025 Meshtastic LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <https://www.gnu.org/licenses/>.
*/
package com.geeksville.mesh.util
import android.content.Context
import androidx.emoji2.emojipicker.RecentEmojiAsyncProvider
import com.google.common.util.concurrent.Futures
import com.google.common.util.concurrent.ListenableFuture
/**
* Define a custom recent emoji provider which shows most frequently used emoji
*/
class CustomRecentEmojiProvider(
context: Context
) : RecentEmojiAsyncProvider {
private val sharedPreferences =
context.getSharedPreferences(RECENT_EMOJI_LIST_FILE_NAME, Context.MODE_PRIVATE)
private val emoji2Frequency: MutableMap<String, Int> by lazy {
sharedPreferences.getString(PREF_KEY_CUSTOM_EMOJI_FREQ, null)?.split(SPLIT_CHAR)
?.associate { entry ->
entry.split(KEY_VALUE_DELIMITER, limit = 2).takeIf { it.size == 2 }
?.let { it[0] to it[1].toInt() } ?: ("" to 0)
}?.toMutableMap() ?: mutableMapOf()
}
override fun getRecentEmojiListAsync(): ListenableFuture<List<String>> =
Futures.immediateFuture(emoji2Frequency.toList().sortedByDescending { it.second }
.map { it.first })
override fun recordSelection(emoji: String) {
emoji2Frequency[emoji] = (emoji2Frequency[emoji] ?: 0) + 1
saveToPreferences()
}
private fun saveToPreferences() {
sharedPreferences
.edit()
.putString(PREF_KEY_CUSTOM_EMOJI_FREQ, emoji2Frequency.entries.joinToString(SPLIT_CHAR))
.apply()
}
companion object {
private const val PREF_KEY_CUSTOM_EMOJI_FREQ = "pref_key_custom_emoji_freq"
private const val RECENT_EMOJI_LIST_FILE_NAME = "org.geeksville.emoji.prefs"
private const val SPLIT_CHAR = ","
private const val KEY_VALUE_DELIMITER = "="
}
}