Initial

.gitignore

@@ -0,0 +1,15 @@
+*.iml
+.gradle
+/local.properties
+/.idea/caches
+/.idea/libraries
+/.idea/modules.xml
+/.idea/workspace.xml
+/.idea/navEditor.xml
+/.idea/assetWizardSettings.xml
+.DS_Store
+/build
+/captures
+.externalNativeBuild
+.cxx
+local.properties

.idea/.gitignore

@@ -0,0 +1,3 @@
+# Default ignored files
+/shelf/
+/workspace.xml

.idea/compiler.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="CompilerConfiguration">
+    <bytecodeTargetLevel target="17" />
+  </component>
+</project>

.idea/gradle.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="GradleSettings">
+    <option name="linkedExternalProjectsSettings">
+      <GradleProjectSettings>
+        <option name="testRunner" value="GRADLE" />
+        <option name="distributionType" value="DEFAULT_WRAPPED" />
+        <option name="externalProjectPath" value="$PROJECT_DIR$" />
+        <option name="gradleJvm" value="jbr-17" />
+        <option name="modules">
+          <set>
+            <option value="$PROJECT_DIR$" />
+            <option value="$PROJECT_DIR$/app" />
+          </set>
+        </option>
+      </GradleProjectSettings>
+    </option>
+  </component>
+</project>

.idea/kotlinc.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="KotlinJpsPluginSettings">
+    <option name="version" value="1.8.10" />
+  </component>
+</project>

.idea/misc.xml

@@ -0,0 +1,10 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/build/classes" />
+  </component>
+  <component name="ProjectType">
+    <option name="id" value="Android" />
+  </component>
+</project>

app/.gitignore

@@ -0,0 +1 @@
+/build

app/build.gradle.kts

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+plugins {
+    id("com.android.application")
+    id("org.jetbrains.kotlin.android")
+    id("com.google.devtools.ksp")
+}
+
+android {
+    namespace = "net.mezimmah.wkt9"
+    compileSdk = 33
+
+    defaultConfig {
+        applicationId = "net.mezimmah.wkt9"
+        minSdk = 31
+        targetSdk = 33
+        versionCode = 1
+        versionName = "1.0"
+
+        testInstrumentationRunner = "androidx.test.runner.AndroidJUnitRunner"
+    }
+
+    buildTypes {
+        release {
+            isMinifyEnabled = false
+            proguardFiles(
+                getDefaultProguardFile("proguard-android-optimize.txt"),
+                "proguard-rules.pro"
+            )
+        }
+    }
+    compileOptions {
+        sourceCompatibility = JavaVersion.VERSION_17
+        targetCompatibility = JavaVersion.VERSION_17
+    }
+    kotlinOptions {
+        jvmTarget = "17"
+    }
+}
+
+dependencies {
+    implementation("androidx.core:core-ktx:1.10.1")
+    implementation("androidx.appcompat:appcompat:1.6.1")
+    implementation("com.google.android.material:material:1.9.0")
+    implementation("androidx.room:room-common:2.5.2")
+    implementation("androidx.room:room-ktx:2.5.2")
+    testImplementation("junit:junit:4.13.2")
+    androidTestImplementation("androidx.test.ext:junit:1.1.5")
+    androidTestImplementation("androidx.test.espresso:espresso-core:3.5.1")
+    ksp("androidx.room:room-compiler:2.5.2")
+}

app/proguard-rules.pro

@@ -0,0 +1,21 @@
+# Add project specific ProGuard rules here.
+# You can control the set of applied configuration files using the
+# proguardFiles setting in build.gradle.
+#
+# For more details, see
+#   http://developer.android.com/guide/developing/tools/proguard.html
+
+# If your project uses WebView with JS, uncomment the following
+# and specify the fully qualified class name to the JavaScript interface
+# class:
+#-keepclassmembers class fqcn.of.javascript.interface.for.webview {
+#   public *;
+#}
+
+# Uncomment this to preserve the line number information for
+# debugging stack traces.
+#-keepattributes SourceFile,LineNumberTable
+
+# If you keep the line number information, uncomment this to
+# hide the original source file name.
+#-renamesourcefileattribute SourceFile

app/src/androidTest/java/net/mezimmah/wkt9/ExampleInstrumentedTest.kt

@@ -0,0 +1,24 @@
+package net.mezimmah.wkt9
+
+import androidx.test.platform.app.InstrumentationRegistry
+import androidx.test.ext.junit.runners.AndroidJUnit4
+
+import org.junit.Test
+import org.junit.runner.RunWith
+
+import org.junit.Assert.*
+
+/**
+ * Instrumented test, which will execute on an Android device.
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+@RunWith(AndroidJUnit4::class)
+class ExampleInstrumentedTest {
+    @Test
+    fun useAppContext() {
+        // Context of the app under test.
+        val appContext = InstrumentationRegistry.getInstrumentation().targetContext
+        assertEquals("net.mezimmah.wkt9", appContext.packageName)
+    }
+}

app/src/main/AndroidManifest.xml

@@ -0,0 +1,26 @@
+<?xml version="1.0" encoding="utf-8"?>
+<manifest xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <application
+        android:allowBackup="true"
+        android:dataExtractionRules="@xml/data_extraction_rules"
+        android:fullBackupContent="@xml/backup_rules"
+        android:icon="@mipmap/ic_launcher"
+        android:label="@string/app_name"
+        android:roundIcon="@mipmap/ic_launcher_round"
+        android:supportsRtl="true"
+        android:theme="@style/Theme.WKT9">
+
+        <service
+            android:name=".WKT9"
+            android:label="@string/app_name"
+            android:permission="android.permission.BIND_INPUT_METHOD"
+            android:exported="true">
+
+            <intent-filter>
+                <action android:name="android.view.InputMethod" />
+            </intent-filter>
+            <meta-data android:name="android.view.im" android:resource="@xml/method" />
+        </service>
+    </application>
+</manifest>

app/src/main/java/net/mezimmah/wkt9/WKT9.kt

@@ -0,0 +1,310 @@
+package net.mezimmah.wkt9
+
+import android.annotation.SuppressLint
+import android.inputmethodservice.InputMethodService
+import android.text.InputType
+import android.util.Log
+import android.view.KeyEvent
+import android.view.View
+import android.view.ViewConfiguration
+import android.view.inputmethod.EditorInfo
+import android.widget.LinearLayout
+import android.widget.TextView
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.Job
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.launch
+import net.mezimmah.wkt9.dao.SettingDao
+import net.mezimmah.wkt9.dao.WordDao
+import net.mezimmah.wkt9.db.AppDatabase
+import net.mezimmah.wkt9.inputmode.InputMode
+import net.mezimmah.wkt9.inputmode.AlphaInputMode
+import net.mezimmah.wkt9.inputmode.NumericInputMode
+import net.mezimmah.wkt9.inputmode.WordInputMode
+import net.mezimmah.wkt9.inputmode.WKT9InputMode
+import net.mezimmah.wkt9.keypad.KeyCodeMapping
+import net.mezimmah.wkt9.keypad.KeyEventResult
+import net.mezimmah.wkt9.keypad.KeyLayout
+import net.mezimmah.wkt9.keypad.Keypad
+import net.mezimmah.wkt9.t9.T9
+import java.lang.StringBuilder
+
+class WKT9: InputMethodService() {
+    private val tag = "WKT9"
+
+    // Dao - Database
+    private lateinit var db: AppDatabase
+    private lateinit var wordDao: WordDao
+    private lateinit var settingDao: SettingDao
+
+    // Coroutines
+    private val job = SupervisorJob()
+    private val scope = CoroutineScope(Dispatchers.Main + job)
+    private var queryJob: Job? = null
+
+    private var cursorPosition = 0
+    private var longPressTimeout = 700
+
+    // Keypad
+    private lateinit var keypad: Keypad
+
+    // T9
+    private lateinit var t9: T9
+
+    // Input
+    private var languageTag = "en_US"
+    private var lastInputMode: WKT9InputMode = WKT9InputMode.WORD
+    private var inputMode: InputMode? = null
+    private lateinit var alphaInputMode: AlphaInputMode
+    private lateinit var numericInputMode: NumericInputMode
+    private lateinit var wordInputMode: WordInputMode
+    private var composing = false
+    private val candidates: MutableList<String> = mutableListOf()
+    private var candidateIndex = 0
+
+    // UI
+    private lateinit var inputView: View
+
+    override fun onCreate() {
+        Log.d(tag, "WKT9 is loading")
+
+        db = AppDatabase.getInstance(this)
+        wordDao = db.getWordDao()
+        settingDao = db.getSettingDao()
+        keypad  = Keypad(KeyCodeMapping(KeyCodeMapping.basic), KeyLayout.en_US)
+        t9 = T9(this, keypad, settingDao, wordDao)
+        alphaInputMode = AlphaInputMode()
+        numericInputMode = NumericInputMode()
+        wordInputMode = WordInputMode()
+        longPressTimeout = ViewConfiguration.getLongPressTimeout()
+
+        t9.initializeWords(languageTag)
+
+        super.onCreate()
+    }
+
+    @SuppressLint("InflateParams")
+    override fun onCreateInputView(): View {
+        inputView = layoutInflater.inflate(R.layout.suggestions, null)
+
+        return inputView
+    }
+
+    override fun onFinishInput() {
+        super.onFinishInput()
+
+        inputMode = null
+        cursorPosition = 0
+    }
+
+    override fun onKeyDown(keyCode: Int, event: KeyEvent?): Boolean {
+        val key = keypad.getKey(keyCode) ?: return super.onKeyDown(keyCode, event)
+        val repeatCount = event?.repeatCount ?: 0
+
+        return inputMode?.let {
+            val keyEventResult =
+                if (repeatCount > 0) it.onKeyDownRepeatedly(key, repeatCount)
+                else {
+                    event?.startTracking()
+                    it.onKeyDown(key)
+                }
+
+            handleKeyEventResult(keyEventResult)
+        } ?: super.onKeyDown(keyCode, event)
+    }
+
+    override fun onKeyUp(keyCode: Int, event: KeyEvent?): Boolean {
+        val key = keypad.getKey(keyCode) ?: return super.onKeyUp(keyCode, event)
+        val eventTime = event?.eventTime ?: 0
+        val downTime = event?.downTime ?: 0
+        val keyDownMS = eventTime - downTime
+
+        return inputMode?.let {
+            val keyEventResult =
+                if (keyDownMS >= longPressTimeout) it.afterKeyLongDown(key, keyDownMS)
+                else it.afterKeyDown(key)
+
+            handleKeyEventResult(keyEventResult)
+        } ?: super.onKeyUp(keyCode, event)
+    }
+
+    override fun onKeyLongPress(keyCode: Int, event: KeyEvent?): Boolean {
+        val key = keypad.getKey(keyCode) ?: return super.onKeyLongPress(keyCode, event)
+
+        return inputMode?.let {
+            val keyEventResult = it.onKeyLongDown(key)
+
+            handleKeyEventResult(keyEventResult)
+        } ?: super.onKeyLongPress(keyCode, event)
+    }
+
+    override fun onStartInput(attribute: EditorInfo?, restarting: Boolean) {
+        val inputType = attribute?.inputType?.and(InputType.TYPE_MASK_CLASS) ?: 0
+
+        cursorPosition = attribute?.initialSelEnd ?: 0
+
+        when (inputType) {
+            InputType.TYPE_CLASS_DATETIME,
+            InputType.TYPE_CLASS_NUMBER,
+            InputType.TYPE_CLASS_PHONE -> enableInputMode(WKT9InputMode.NUMERIC, inputType)
+            InputType.TYPE_CLASS_TEXT ->
+                if (lastInputMode == WKT9InputMode.ALPHA) enableInputMode(WKT9InputMode.ALPHA, inputType)
+                else enableInputMode(WKT9InputMode.WORD, inputType)
+            else -> Log.d(tag, "Mode without input...")
+        }
+
+        super.onStartInput(attribute, restarting)
+    }
+
+    override fun onUpdateSelection(
+        oldSelStart: Int,
+        oldSelEnd: Int,
+        newSelStart: Int,
+        newSelEnd: Int,
+        candidatesStart: Int,
+        candidatesEnd: Int
+    ) {
+        cursorPosition = newSelEnd
+
+        super.onUpdateSelection(
+            oldSelStart,
+            oldSelEnd,
+            newSelStart,
+            newSelEnd,
+            candidatesStart,
+            candidatesEnd
+        )
+    }
+
+    private fun cancelComposing() {
+        composing = false
+
+        currentInputConnection.let {
+            it.setComposingText("", 1)
+            it.finishComposingText()
+        }
+    }
+
+    private fun clearCandidates() {
+        clearCandidateUI()
+
+        candidates.clear()
+        candidateIndex = 0
+    }
+
+    private fun clearCandidateUI() {
+        val candidatesView = inputView.findViewById<LinearLayout>(R.id.suggestions)
+
+        candidatesView.removeAllViews()
+    }
+
+    private fun commitText(text: CharSequence, start: Int, end: Int, cursorPosition: Int): Boolean {
+        return (markComposingRegion(start, end) && composeText(text, cursorPosition) && finishComposingText())
+    }
+
+    private fun composeText(text: CharSequence, cursorPosition: Int = 1): Boolean {
+        if (!composing) return false
+
+        return currentInputConnection?.setComposingText(text, cursorPosition) ?: false
+    }
+
+    private fun deleteText(beforeCursor: Int, afterCursor: Int): Boolean {
+        val cursorPosition = currentInputEditorInfo?.initialSelEnd ?: 0
+
+        return commitText("", cursorPosition - beforeCursor, cursorPosition + afterCursor, 1)
+    }
+
+    // Todo: inputType
+    private fun enableInputMode(mode: WKT9InputMode, inputType: Int) {
+        lastInputMode = mode
+
+        inputMode = when(mode) {
+            WKT9InputMode.ALPHA -> alphaInputMode
+            WKT9InputMode.NUMERIC -> numericInputMode
+            WKT9InputMode.WORD -> wordInputMode
+        }
+    }
+
+    private fun finishComposingText(): Boolean {
+        return if (composing) {
+            composing = false
+            currentInputConnection?.finishComposingText() ?: false
+        } else false
+    }
+
+    private fun handleKeyEventResult(res: KeyEventResult): Boolean {
+        if (res.finishComposing) finishComposingText()
+        if (res.startComposing) markComposingRegion()
+        if (!res.codeWord.isNullOrEmpty()) onCodeWordUpdate(res.codeWord)
+        if (!res.candidates.isNullOrEmpty()) onCandidates(res.candidates)
+        if (res.right) onRight()
+
+        return res.consumed
+    }
+
+    private fun loadCandidates(highLight: Int? = null) {
+        val candidatesView = inputView.findViewById<LinearLayout>(R.id.suggestions)
+
+        candidates.forEachIndexed { index, candidate ->
+            val layout = if (index == highLight) R.layout.current_suggestion else R.layout.suggestion
+            val candidateView = layoutInflater.inflate(layout, null) as TextView
+
+            candidateView.text  = candidate
+
+            candidatesView.addView(candidateView)
+        }
+    }
+
+    private fun markComposingRegion(start: Int? = null, end: Int? = null): Boolean {
+        if (composing) return false
+
+        val composeStart = start ?: cursorPosition
+        val composeEnd = end ?: cursorPosition
+
+        composing = currentInputConnection?.setComposingRegion(composeStart, composeEnd) ?: false
+
+        return composing
+    }
+
+    private fun onCandidates(candidates: List<String>) {
+        clearCandidates()
+
+        candidates.forEach {
+            this.candidates.add(it)
+        }
+
+        loadCandidates(candidateIndex)
+        composeText(candidates[candidateIndex])
+    }
+
+    private fun onCodeWordUpdate(codeWord: StringBuilder) {
+        clearCandidates()
+
+        queryJob?.cancel()
+        queryJob = scope.launch {
+            val hasCandidates = queryT9Candidates(codeWord, 10)
+
+            if (!hasCandidates) return@launch
+
+            loadCandidates(candidateIndex)
+            composeText(candidates[candidateIndex], 1)
+        }
+    }
+
+    private fun onRight() {
+        if (candidates.isEmpty()) return
+
+        Log.d(tag, "Let's have some fun!!")
+    }
+
+    private suspend fun queryT9Candidates(codeWord: StringBuilder, limit: Int = 10): Boolean {
+        val words = wordDao.findCandidates(codeWord.toString(), limit)
+
+        words.forEach {
+            candidates.add(it.word)
+        }
+
+        return words.isNotEmpty()
+    }
+}

app/src/main/java/net/mezimmah/wkt9/dao/SettingDao.kt

@@ -0,0 +1,20 @@
+package net.mezimmah.wkt9.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.OnConflictStrategy
+import androidx.room.Query
+import net.mezimmah.wkt9.entity.Setting
+
+@Dao
+interface SettingDao {
+    @Insert(onConflict = OnConflictStrategy.REPLACE)
+    suspend fun insert(setting: Setting)
+
+    @Query("SELECT `setting`.* FROM `setting` WHERE `key` = :key")
+    suspend fun getByKey(key: String): Setting?
+
+    @Delete
+    suspend fun delete(setting: Setting)
+}

app/src/main/java/net/mezimmah/wkt9/dao/WordDao.kt

@@ -0,0 +1,26 @@
+package net.mezimmah.wkt9.dao
+
+import androidx.room.Dao
+import androidx.room.Delete
+import androidx.room.Insert
+import androidx.room.Query
+import net.mezimmah.wkt9.entity.Word
+
+@Dao
+interface WordDao {
+    @Insert
+    suspend fun insert(vararg words: Word)
+
+    @Delete
+    fun delete(word: Word)
+
+    @Query("SELECT * FROM word")
+    fun getAll(): List<Word>
+
+    @Query("SELECT * FROM word WHERE code LIKE :code || '%' " +
+            "ORDER BY length, weight DESC LIMIT :limit")
+    suspend fun findCandidates(code: String, limit: Int = 10): List<Word>
+
+    @Query("UPDATE word SET weight = weight + 1 WHERE word=:word")
+    suspend fun increaseWeight(word: String)
+}

app/src/main/java/net/mezimmah/wkt9/db/AppDatabase.kt

@@ -0,0 +1,37 @@
+package net.mezimmah.wkt9.db
+
+import android.content.Context
+import androidx.room.Database
+import androidx.room.Room
+import androidx.room.RoomDatabase
+import net.mezimmah.wkt9.entity.*
+import net.mezimmah.wkt9.dao.*
+
+@Database(entities = [Word::class, Setting::class], version = 1)
+abstract class AppDatabase : RoomDatabase() {
+    abstract fun getWordDao(): WordDao
+    abstract fun getSettingDao(): SettingDao
+
+    companion object {
+        @Volatile
+        private var INSTANCE: AppDatabase? = null
+
+        fun getInstance(context: Context): AppDatabase {
+            synchronized(this) {
+                var instance = INSTANCE
+
+                if (instance == null) {
+                    instance = Room.databaseBuilder(
+                        context.applicationContext,
+                        AppDatabase::class.java,
+                        "wkt9_db"
+                    )
+                        .fallbackToDestructiveMigration()
+                        .build()
+                    INSTANCE = instance
+                }
+                return instance
+            }
+        }
+    }
+}

app/src/main/java/net/mezimmah/wkt9/entity/Setting.kt

@@ -0,0 +1,18 @@
+package net.mezimmah.wkt9.entity
+
+import androidx.room.Entity
+import androidx.room.Index
+import androidx.room.PrimaryKey
+import net.mezimmah.wkt9.dao.SettingDao
+
+@Entity(indices = [Index(value = ["key"], unique = true)])
+data class Setting(
+    @PrimaryKey val key: String,
+    var value: String
+) {
+    companion object {
+        suspend fun set(key: String, value: String, dao: SettingDao) {
+            dao.insert(Setting(key, value))
+        }
+    }
+}

app/src/main/java/net/mezimmah/wkt9/entity/Word.kt

@@ -0,0 +1,17 @@
+package net.mezimmah.wkt9.entity
+
+import androidx.room.Entity
+import androidx.room.Index
+import androidx.room.PrimaryKey
+
+@Entity(indices = [Index(value = ["word"]), Index(value = ["code"]), Index(value = ["locale"])])
+data class Word(
+    var word: String,
+    var code: String,
+    var length: Int,
+    var weight: Int,
+    var locale: String
+) {
+    @PrimaryKey(autoGenerate = true)
+    var id: Int = 0
+}

app/src/main/java/net/mezimmah/wkt9/exception/MissingLetterCode.kt

@@ -0,0 +1,5 @@
+package net.mezimmah.wkt9.exception
+
+import java.lang.Exception
+
+class MissingLetterCode(message: String): Exception(message)

app/src/main/java/net/mezimmah/wkt9/inputmode/AlphaInputMode.kt

@@ -0,0 +1,26 @@
+package net.mezimmah.wkt9.inputmode
+
+import net.mezimmah.wkt9.keypad.Key
+import net.mezimmah.wkt9.keypad.KeyEventResult
+
+class AlphaInputMode: InputMode {
+    override fun onKeyDown(key: Key): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun onKeyLongDown(key: Key): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun onKeyDownRepeatedly(key: Key, repeat: Int): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun afterKeyDown(key: Key): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun afterKeyLongDown(key: Key, keyDownMS: Long): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+}

app/src/main/java/net/mezimmah/wkt9/inputmode/InputMode.kt

@@ -0,0 +1,16 @@
+package net.mezimmah.wkt9.inputmode
+
+import net.mezimmah.wkt9.keypad.Key
+import net.mezimmah.wkt9.keypad.KeyEventResult
+
+interface InputMode {
+    fun onKeyDown(key: Key): KeyEventResult
+
+    fun onKeyLongDown(key: Key): KeyEventResult
+
+    fun onKeyDownRepeatedly(key: Key, repeat: Int): KeyEventResult
+
+    fun afterKeyDown(key: Key): KeyEventResult
+
+    fun afterKeyLongDown(key: Key, keyDownMS: Long): KeyEventResult
+}

app/src/main/java/net/mezimmah/wkt9/inputmode/NumericInputMode.kt

@@ -0,0 +1,47 @@
+package net.mezimmah.wkt9.inputmode
+
+import android.util.Log
+import net.mezimmah.wkt9.keypad.Command
+import net.mezimmah.wkt9.keypad.KeyCommandResolver
+import net.mezimmah.wkt9.keypad.Key
+import net.mezimmah.wkt9.keypad.KeyEventResult
+import java.lang.StringBuilder
+
+class NumericInputMode: InputMode {
+    private val tag = "WKT9"
+    private val keyCommandResolver: KeyCommandResolver = KeyCommandResolver.getBasic()
+    private val codeWord = StringBuilder()
+
+    override fun onKeyDown(key: Key): KeyEventResult {
+        return when(keyCommandResolver.getCommand(key)) {
+            Command.CHARACTER -> buildCodeWord(key)
+//            Command.SELECT -> true
+//            Command.DELETE -> delete()
+//            Command.SPACE -> finalizeWordOrSentence()
+//            Command.CYCLE_CANDIDATES -> cycleCandidates()
+            else -> KeyEventResult(consumed = true)
+        }
+    }
+
+    override fun onKeyLongDown(key: Key): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun onKeyDownRepeatedly(key: Key, repeat: Int): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun afterKeyDown(key: Key): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    override fun afterKeyLongDown(key: Key, keyDownMS: Long): KeyEventResult {
+        return KeyEventResult(consumed = false)
+    }
+
+    private fun buildCodeWord(key: Key): KeyEventResult {
+        Log.d(tag, "GR8!")
+
+        return KeyEventResult(consumed = true)
+    }
+}

app/src/main/java/net/mezimmah/wkt9/inputmode/WKT9InputMode.kt

@@ -0,0 +1,7 @@
+package net.mezimmah.wkt9.inputmode
+
+enum class WKT9InputMode(val idx: Int) {
+    WORD(0),
+    ALPHA(1),
+    NUMERIC(2)
+}

app/src/main/java/net/mezimmah/wkt9/inputmode/WordInputMode.kt

@@ -0,0 +1,95 @@
+package net.mezimmah.wkt9.inputmode
+
+import android.util.Log
+import net.mezimmah.wkt9.keypad.Command
+import net.mezimmah.wkt9.keypad.Key
+import net.mezimmah.wkt9.keypad.KeyCommandResolver
+import net.mezimmah.wkt9.keypad.KeyEventResult
+import java.lang.StringBuilder
+
+class WordInputMode: InputMode {
+    private val tag = "WKT9"
+    private val keyCommandResolver: KeyCommandResolver = KeyCommandResolver.getBasic()
+    private val codeWord = StringBuilder()
+    private var newKey = true
+    private var keyIndex = 0
+    private var lastKey: Key? = null
+
+    override fun onKeyDown(key: Key): KeyEventResult {
+        keyStats(key)
+
+        return when(keyCommandResolver.getCommand(key)) {
+            Command.CHARACTER -> buildCodeWord(key)
+//            Command.SELECT -> true
+//            Command.DELETE -> delete()
+            Command.SPACE -> finalizeWordOrSentence()
+//            Command.CYCLE_CANDIDATES -> cycleCandidates()
+            else -> KeyEventResult()
+        }
+    }
+
+    override fun onKeyLongDown(key: Key): KeyEventResult {
+//        Log.d(tag, "onKeyLongDown")
+
+        return KeyEventResult()
+    }
+
+    override fun onKeyDownRepeatedly(key: Key, repeat: Int): KeyEventResult {
+//        Log.d(tag, "onKeyDownRepeatedly")
+
+        return KeyEventResult()
+    }
+
+    override fun afterKeyDown(key: Key): KeyEventResult {
+//        Log.d(tag, "afterKeyDown")
+
+        return KeyEventResult()
+    }
+
+    override fun afterKeyLongDown(key: Key, keyDownMS: Long): KeyEventResult {
+//        Log.d(tag, "afterKeyLongDown")
+
+        return KeyEventResult()
+    }
+
+    private fun buildCodeWord(key: Key): KeyEventResult {
+        val startComposing = codeWord.isEmpty()
+
+        codeWord.append(key.code)
+
+        return KeyEventResult(
+            codeWord = codeWord,
+            finishComposing = startComposing,
+            startComposing = startComposing
+        )
+    }
+
+    private fun finalizeWordOrSentence(): KeyEventResult {
+        if (!newKey) return KeyEventResult(right = true)
+
+        val finishComposing = codeWord.isNotEmpty()
+
+        codeWord.clear()
+
+        return KeyEventResult(
+            finishComposing = finishComposing,
+            startComposing = true,
+            candidates = listOf(" ", ". ", "? ", "! ", ", ", ": ", "; ")
+        )
+    }
+
+    private fun keyStats(key: Key) {
+        when (key != lastKey) {
+            true -> {
+                newKey = true
+                keyIndex = 0
+            }
+            false -> {
+                newKey = false
+                keyIndex++
+            }
+        }
+
+        lastKey = key
+    }
+}

app/src/main/java/net/mezimmah/wkt9/keypad/Command.kt

@@ -0,0 +1,16 @@
+package net.mezimmah.wkt9.keypad
+
+enum class Command {
+    CHARACTER,
+    NUMBER,
+    SPACE,
+    NEWLINE,
+    DELETE,
+    CYCLE_CANDIDATES,
+    SELECT,
+    SHIFT_MODE,
+    SWITCH_MODE,
+    NAVIGATE,
+    RECORD,
+    TRANSCRIBE
+}

app/src/main/java/net/mezimmah/wkt9/keypad/Key.kt

@@ -0,0 +1,22 @@
+package net.mezimmah.wkt9.keypad
+
+enum class Key(val code: Char) {
+    N0('0'),
+    N1('1'),
+    N2('2'),
+    N3('3'),
+    N4('4'),
+    N5('5'),
+    N6('6'),
+    N7('7'),
+    N8('8'),
+    N9('9'),
+    STAR('*'),
+    POUND('#'),
+    UP('a'),
+    DOWN('b'),
+    LEFT('c'),
+    RIGHT('d'),
+    SELECT('e'),
+    DELETE('f')
+}

app/src/main/java/net/mezimmah/wkt9/keypad/KeyCodeMapping.kt

@@ -0,0 +1,50 @@
+package net.mezimmah.wkt9.keypad
+
+import java.util.Properties
+
+class KeyCodeMapping(
+    private val keyMap: Map<Int, Key>,
+) {
+
+    fun key(keyCode: Int): Key? {
+        return keyMap[keyCode]
+    }
+
+    companion object {
+        val basic = mapOf(
+            7 to Key.N0,
+            8 to Key.N1,
+            9 to Key.N2,
+            10 to Key.N3,
+            11 to Key.N4,
+            12 to Key.N5,
+            13 to Key.N6,
+            14 to Key.N7,
+            15 to Key.N8,
+            16 to Key.N9,
+            17 to Key.STAR,
+            18 to Key.POUND,
+            82 to Key.DELETE,
+            19 to Key.UP,
+            20 to Key.DOWN,
+            21 to Key.LEFT,
+            22 to Key.RIGHT,
+            23 to Key.SELECT
+        )
+
+        fun fromProperties(props: Properties): KeyCodeMapping {
+            val keyMap = HashMap<Int, Key>()
+
+            this.basic.forEach {
+                val keyCode = props.getProperty("key.${it.value.name}")?.toInt() ?: it.key
+                keyMap[keyCode] = it.value
+            }
+
+            return KeyCodeMapping(keyMap)
+        }
+
+        fun default(): KeyCodeMapping {
+            return KeyCodeMapping(basic)
+        }
+    }
+}

app/src/main/java/net/mezimmah/wkt9/keypad/KeyCommandResolver.kt

@@ -0,0 +1,83 @@
+package net.mezimmah.wkt9.keypad
+
+class KeyCommandResolver (
+    private val onShort: HashMap<Key, Command> = HashMap(mapOf()),
+    private val onLong: HashMap<Key, Command> = HashMap(mapOf()),
+    private val afterShort: HashMap<Key, Command> = HashMap(mapOf()),
+    private val afterLong: HashMap<Key, Command> = HashMap(mapOf()),
+    private val onRepeat: HashMap<Key, Command> = HashMap(mapOf()),
+    private val parent: KeyCommandResolver? = null
+) {
+    fun getCommand(key: Key, longPress: Boolean = false, after: Boolean = false, repeat: Int = 0): Command? {
+        val command = when {
+            repeat > 0 -> onRepeat[key]
+            (longPress && after) -> afterLong[key]
+            (longPress) -> onLong[key]
+            (after) -> afterShort[key]
+            else -> onShort[key]
+        }
+
+        return when (command) {
+            null -> parent?.getCommand(key, longPress, after)
+            else -> command
+        }
+    }
+
+    companion object {
+        fun getBasic(): KeyCommandResolver {
+            return KeyCommandResolver(
+                onShort = HashMap(mapOf(
+                    Key.N0 to Command.SPACE,
+
+                    Key.N1 to Command.CHARACTER,
+                    Key.N2 to Command.CHARACTER,
+                    Key.N3 to Command.CHARACTER,
+                    Key.N4 to Command.CHARACTER,
+                    Key.N5 to Command.CHARACTER,
+                    Key.N6 to Command.CHARACTER,
+                    Key.N7 to Command.CHARACTER,
+                    Key.N8 to Command.CHARACTER,
+                    Key.N9 to Command.CHARACTER,
+
+                    Key.LEFT to Command.NAVIGATE,
+                    Key.RIGHT to Command.NAVIGATE,
+                    Key.UP to Command.NAVIGATE,
+                    Key.DOWN to Command.NAVIGATE,
+
+                    Key.STAR to Command.CYCLE_CANDIDATES,
+                    Key.DELETE to Command.DELETE,
+                    Key.SELECT to Command.SELECT
+                )),
+
+                onLong = HashMap(mapOf(
+                    Key.N0 to Command.NUMBER,
+                    Key.N1 to Command.NUMBER,
+                    Key.N2 to Command.NUMBER,
+                    Key.N3 to Command.NUMBER,
+                    Key.N4 to Command.NUMBER,
+                    Key.N5 to Command.NUMBER,
+                    Key.N6 to Command.NUMBER,
+                    Key.N7 to Command.NUMBER,
+                    Key.N8 to Command.NUMBER,
+                    Key.N9 to Command.NUMBER,
+
+                    Key.POUND to Command.SWITCH_MODE,
+                    Key.SELECT to Command.RECORD
+                )),
+
+                afterShort = HashMap(mapOf(
+                    Key.POUND to Command.SHIFT_MODE,
+                )),
+
+                afterLong = HashMap(mapOf(
+                    Key.DELETE to Command.DELETE,
+                    Key.SELECT to Command.TRANSCRIBE,
+                )),
+
+                onRepeat = HashMap(mapOf(
+                    Key.DELETE to Command.DELETE,
+                ))
+            )
+        }
+    }
+}

app/src/main/java/net/mezimmah/wkt9/keypad/KeyEventResult.kt

@@ -0,0 +1,12 @@
+package net.mezimmah.wkt9.keypad
+
+import java.lang.StringBuilder
+
+data class KeyEventResult(
+    val consumed: Boolean = true,
+    val finishComposing: Boolean = false,
+    val startComposing: Boolean = false,
+    val codeWord: StringBuilder? = null,
+    val candidates: List<String>? = null,
+    val right: Boolean = false
+)

app/src/main/java/net/mezimmah/wkt9/keypad/KeyLayout.kt

@@ -0,0 +1,33 @@
+package net.mezimmah.wkt9.keypad
+
+object KeyLayout {
+    // Map for number input mode
+    val numeric = mapOf(
+        Key.N0 to '0',
+        Key.N1 to '1',
+        Key.N2 to '2',
+        Key.N3 to '3',
+        Key.N4 to '4',
+        Key.N5 to '5',
+        Key.N6 to '6',
+        Key.N7 to '7',
+        Key.N8 to '8',
+        Key.N9 to '9',
+    )
+
+    val en_US = mapOf(
+        Key.N1 to listOf('.','?','!',',','-','\'','"','@','$','/','%',':','(',')'),
+        Key.N2 to listOf('a','b','c','ä','æ','å','à','á','â','ã','ç'),
+        Key.N3 to listOf('d','e','f','è','é','ê','ë','đ'),
+        Key.N4 to listOf('g','h','i','ì','í','î','ï'),
+        Key.N5 to listOf('j','k','l','£'),
+        Key.N6 to listOf('m','n','o','ö','ø','ò','ó','ô','õ','õ'),
+        Key.N7 to listOf('p','q','r','s','ß','$'),
+        Key.N8 to listOf('t','u','v','ù','ú','û','ü'),
+        Key.N9 to listOf('w','x','y','z','ý','þ'),
+        Key.STAR to listOf('*'),
+        Key.POUND to listOf('#'),
+    )
+
+    val nonAlphaNumeric = setOf('*','#','\'','"','.','?','!',',','-','@','$','/','%',':','(',')')
+}

app/src/main/java/net/mezimmah/wkt9/keypad/Keypad.kt

@@ -0,0 +1,75 @@
+package net.mezimmah.wkt9.keypad
+
+import net.mezimmah.wkt9.exception.MissingLetterCode
+import java.lang.StringBuilder
+
+class Keypad(
+    private val keyCodeMapping: KeyCodeMapping,
+    private val letterLayout: Map<Key, List<Char>>
+) {
+    private lateinit var letterKeyMap: Map<Char, Key>
+    private lateinit var keyIsLetterMap: Map<Key, Boolean>
+    private var emojiCodes = mapOf(
+        "❤️" to "143278",
+        "\uD83D\uDE18" to "15477"
+    )
+
+    init {
+        initKeyMaps(letterLayout)
+    }
+
+    fun getKey(keyCode: Int): Key? {
+        return keyCodeMapping.key(keyCode)
+    }
+
+    fun getCharacter(key: Key, idx: Int): Char {
+        val chars = letterLayout[key]!!
+        val length = chars.size
+        val wrappedIdx = idx % (length - 1) + 1
+        return chars[wrappedIdx]
+    }
+
+    fun getDigit(key: Key): Char? {
+        val letters = letterLayout[key] ?: return null
+        return if (letters.isNotEmpty() && letters[0].isDigit()) letters[0] else null
+    }
+
+    fun getCodeForWord(word: String): String {
+        if (emojiCodes.keys.contains(word)) return emojiCodes[word]!!
+
+        val builder = StringBuilder()
+
+        for (letter in word) {
+            val code = codeForLetter(letter) ?: throw MissingLetterCode("No code found for '$letter'")
+
+            builder.append(code)
+        }
+
+        return builder.toString()
+    }
+
+    private fun codeForLetter(letter: Char): Char? {
+        return letterKeyMap[letter]?.code
+    }
+
+    private fun initKeyMaps(layout: Map<Key, List<Char>>): Map<Char, Key> {
+        val letterKeyMap = HashMap<Char, Key>()
+        val keyIsLetterMap = HashMap<Key, Boolean>()
+
+        this.letterKeyMap = letterKeyMap
+        this.keyIsLetterMap = keyIsLetterMap
+
+        for ((key, characters) in layout) {
+            for (char in characters) {
+                letterKeyMap[char] = key
+
+                if (!KeyLayout.nonAlphaNumeric.contains(char)) {
+                    letterKeyMap[char.uppercaseChar()] = key
+                    keyIsLetterMap[key] = true
+                } else if (keyIsLetterMap[key] == null) keyIsLetterMap[key] = false
+            }
+        }
+
+        return letterKeyMap
+    }
+}

app/src/main/java/net/mezimmah/wkt9/t9/T9.kt

@@ -0,0 +1,98 @@
+package net.mezimmah.wkt9.t9
+
+import android.util.Log
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.SupervisorJob
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.runBlocking
+import net.mezimmah.wkt9.WKT9
+import net.mezimmah.wkt9.dao.SettingDao
+import net.mezimmah.wkt9.dao.WordDao
+import net.mezimmah.wkt9.entity.Setting
+import net.mezimmah.wkt9.entity.Word
+import net.mezimmah.wkt9.exception.MissingLetterCode
+import net.mezimmah.wkt9.keypad.Keypad
+
+class T9 (
+    private val context: WKT9,
+    private val keypad: Keypad,
+    private val settingDao: SettingDao,
+    private val wordDao: WordDao
+) {
+    // Debugging
+    private val tag = "WKT9"
+
+    // Coroutines
+    private val job = SupervisorJob()
+    private val scope = CoroutineScope(Dispatchers.IO + job)
+
+    fun initializeWords(locale: CharSequence) {
+        scope.launch {
+            val setting = settingDao.getByKey("initialized")
+
+            if (setting == null) {
+                Log.d(tag,"Initializing word database...")
+                readWords(locale.toString())
+                Setting.set("initialized", "t", settingDao)
+            } else Log.d(tag, "Word database already initialized")
+        }
+    }
+
+    private fun getWord(word: String, weight: Int = 1, locale: String) = Word(
+        word = word,
+        code = keypad.getCodeForWord(word),
+        length = word.length,
+        weight = weight,
+        locale = locale
+    )
+
+    private fun readWords(locale: String) {
+        val fileName = "$locale/words.txt"
+        val batchSize = 1000
+        val wordBatch = ArrayList<Word>(batchSize)
+
+        context.assets.open(fileName).bufferedReader().useLines { lines ->
+            for (chunk in lines.chunked(batchSize)) {
+                var arrayListIndex = 0
+
+                wordBatch.clear()
+
+                chunk.forEach { line ->
+                    val parts = line.split("\\s".toRegex())
+
+                    try {
+                        wordBatch.add(
+                            arrayListIndex,
+
+                            when (parts.size) {
+                                // Emoji support
+                                3 -> Word(
+                                    word = parts[0],
+                                    code = parts[2],
+                                    length = 1,
+                                    weight = parts[1].toInt(),
+                                    locale = locale
+                                )
+                                // Regular dictionary words
+                                else -> getWord(
+                                    word = parts[0],
+                                    weight = if (parts.size > 1) parts[1].toInt() else 0,
+                                    locale = locale
+                                )
+                            }
+                        )
+
+                        arrayListIndex++
+                    } catch (ex: MissingLetterCode) {
+                        Log.w(tag, "Problem adding ${parts[0]}: " + ex.message)
+                    }
+                }
+
+                runBlocking {
+                    wordDao.insert(*wordBatch.toTypedArray())
+                }
+            }
+        }
+    }
+}

app/src/main/java/net/mezimmah/wkt9/ui/Suggestions.kt

@@ -0,0 +1,9 @@
+package net.mezimmah.wkt9.ui
+
+import android.content.Context
+import android.util.AttributeSet
+import android.widget.RelativeLayout
+
+class Suggestions(context: Context, attrs: AttributeSet): RelativeLayout(context, attrs) {
+    private val tag = "WKT9"
+}

app/src/main/res/drawable/ic_launcher_background.xml

@@ -0,0 +1,170 @@
+<?xml version="1.0" encoding="utf-8"?>
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path
+        android:fillColor="#3DDC84"
+        android:pathData="M0,0h108v108h-108z" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M9,0L9,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,0L19,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,0L29,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,0L39,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,0L49,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,0L59,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,0L69,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,0L79,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M89,0L89,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M99,0L99,108"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,9L108,9"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,19L108,19"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,29L108,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,39L108,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,49L108,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,59L108,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,69L108,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,79L108,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,89L108,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M0,99L108,99"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,29L89,29"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,39L89,39"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,49L89,49"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,59L89,59"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,69L89,69"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M19,79L89,79"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M29,19L29,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M39,19L39,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M49,19L49,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M59,19L59,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M69,19L69,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+    <path
+        android:fillColor="#00000000"
+        android:pathData="M79,19L79,89"
+        android:strokeWidth="0.8"
+        android:strokeColor="#33FFFFFF" />
+</vector>

app/src/main/res/drawable/ic_launcher_foreground.xml

@@ -0,0 +1,30 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:aapt="http://schemas.android.com/aapt"
+    android:width="108dp"
+    android:height="108dp"
+    android:viewportWidth="108"
+    android:viewportHeight="108">
+    <path android:pathData="M31,63.928c0,0 6.4,-11 12.1,-13.1c7.2,-2.6 26,-1.4 26,-1.4l38.1,38.1L107,108.928l-32,-1L31,63.928z">
+        <aapt:attr name="android:fillColor">
+            <gradient
+                android:endX="85.84757"
+                android:endY="92.4963"
+                android:startX="42.9492"
+                android:startY="49.59793"
+                android:type="linear">
+                <item
+                    android:color="#44000000"
+                    android:offset="0.0" />
+                <item
+                    android:color="#00000000"
+                    android:offset="1.0" />
+            </gradient>
+        </aapt:attr>
+    </path>
+    <path
+        android:fillColor="#FFFFFF"
+        android:fillType="nonZero"
+        android:pathData="M65.3,45.828l3.8,-6.6c0.2,-0.4 0.1,-0.9 -0.3,-1.1c-0.4,-0.2 -0.9,-0.1 -1.1,0.3l-3.9,6.7c-6.3,-2.8 -13.4,-2.8 -19.7,0l-3.9,-6.7c-0.2,-0.4 -0.7,-0.5 -1.1,-0.3C38.8,38.328 38.7,38.828 38.9,39.228l3.8,6.6C36.2,49.428 31.7,56.028 31,63.928h46C76.3,56.028 71.8,49.428 65.3,45.828zM43.4,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2c-0.3,-0.7 -0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C45.3,56.528 44.5,57.328 43.4,57.328L43.4,57.328zM64.6,57.328c-0.8,0 -1.5,-0.5 -1.8,-1.2s-0.1,-1.5 0.4,-2.1c0.5,-0.5 1.4,-0.7 2.1,-0.4c0.7,0.3 1.2,1 1.2,1.8C66.5,56.528 65.6,57.328 64.6,57.328L64.6,57.328z"
+        android:strokeWidth="1"
+        android:strokeColor="#00000000" />
+</vector>

app/src/main/res/drawable/suggestion_border.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <stroke
+        android:width="1dip"
+        android:color="@color/suggestion" />
+</shape>

app/src/main/res/drawable/suggestion_current_border.xml

@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <stroke
+        android:width="1dip"
+        android:color="@color/current_suggestion" />
+</shape>

app/src/main/res/layout/current_suggestion.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/current_suggestion"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:layout_marginRight="2dp"
+    android:padding="8dp"
+    android:background="@drawable/suggestion_current_border"
+    android:textFontWeight="600"
+    android:textSize="20dp"
+    android:textColor="@color/current_suggestion" />

app/src/main/res/layout/suggestion.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?>
+<TextView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:id="@+id/suggestion"
+    android:layout_width="match_parent"
+    android:layout_height="match_parent"
+    android:padding="8dp"
+    android:background="@drawable/suggestion_border"
+    android:textFontWeight="600"
+    android:textSize="20sp"
+    android:minWidth="40dp"
+    android:textAlignment="center"
+    android:textColor="@color/suggestion" />

app/src/main/res/layout/suggestions.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<HorizontalScrollView
+    xmlns:android="http://schemas.android.com/apk/res/android"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_alignParentBottom="true"
+    android:layout_gravity="bottom"
+    android:theme="@style/Theme.AppCompat.DayNight"
+    android:gravity="bottom"
+    android:orientation="vertical">
+
+    <LinearLayout
+        android:id="@+id/suggestions"
+        android:background="@color/black"
+        android:layout_width="wrap_content"
+        android:layout_height="wrap_content"
+        android:orientation="horizontal">
+    </LinearLayout>
+</HorizontalScrollView>

app/src/main/res/mipmap-anydpi/ic_launcher.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/mipmap-anydpi/ic_launcher_round.xml

@@ -0,0 +1,6 @@
+<?xml version="1.0" encoding="utf-8"?>
+<adaptive-icon xmlns:android="http://schemas.android.com/apk/res/android">
+    <background android:drawable="@drawable/ic_launcher_background" />
+    <foreground android:drawable="@drawable/ic_launcher_foreground" />
+    <monochrome android:drawable="@drawable/ic_launcher_foreground" />
+</adaptive-icon>

app/src/main/res/values-night/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.WKT9" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_200</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/black</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_200</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

app/src/main/res/values/colors.xml

@@ -0,0 +1,12 @@
+<?xml version="1.0" encoding="utf-8"?>
+<resources>
+    <color name="purple_200">#FFBB86FC</color>
+    <color name="purple_500">#FF6200EE</color>
+    <color name="purple_700">#FF3700B3</color>
+    <color name="teal_200">#FF03DAC5</color>
+    <color name="teal_700">#FF018786</color>
+    <color name="black">#FF000000</color>
+    <color name="white">#FFFFFFFF</color>
+    <color name="suggestion">#C1E8FF</color>
+    <color name="current_suggestion">#FFC1F0</color>
+</resources>

app/src/main/res/values/strings.xml

@@ -0,0 +1,3 @@
+<resources>
+    <string name="app_name">WKT9</string>
+</resources>

app/src/main/res/values/themes.xml

@@ -0,0 +1,16 @@
+<resources xmlns:tools="http://schemas.android.com/tools">
+    <!-- Base application theme. -->
+    <style name="Theme.WKT9" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+        <!-- Primary brand color. -->
+        <item name="colorPrimary">@color/purple_500</item>
+        <item name="colorPrimaryVariant">@color/purple_700</item>
+        <item name="colorOnPrimary">@color/white</item>
+        <!-- Secondary brand color. -->
+        <item name="colorSecondary">@color/teal_200</item>
+        <item name="colorSecondaryVariant">@color/teal_700</item>
+        <item name="colorOnSecondary">@color/black</item>
+        <!-- Status bar color. -->
+        <item name="android:statusBarColor">?attr/colorPrimaryVariant</item>
+        <!-- Customize your theme here. -->
+    </style>
+</resources>

app/src/main/res/xml/backup_rules.xml

@@ -0,0 +1,13 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample backup rules file; uncomment and customize as necessary.
+   See https://developer.android.com/guide/topics/data/autobackup
+   for details.
+   Note: This file is ignored for devices older that API 31
+   See https://developer.android.com/about/versions/12/backup-restore
+-->
+<full-backup-content>
+    <!--
+   <include domain="sharedpref" path="."/>
+   <exclude domain="sharedpref" path="device.xml"/>
+-->
+</full-backup-content>

app/src/main/res/xml/data_extraction_rules.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?><!--
+   Sample data extraction rules file; uncomment and customize as necessary.
+   See https://developer.android.com/about/versions/12/backup-restore#xml-changes
+   for details.
+-->
+<data-extraction-rules>
+    <cloud-backup>
+        <!-- TODO: Use <include> and <exclude> to control what is backed up.
+        <include .../>
+        <exclude .../>
+        -->
+    </cloud-backup>
+    <!--
+    <device-transfer>
+        <include .../>
+        <exclude .../>
+    </device-transfer>
+    -->
+</data-extraction-rules>

app/src/main/res/xml/method.xml

@@ -0,0 +1,10 @@
+<input-method xmlns:android="http://schemas.android.com/apk/res/android"
+    android:settingsActivity="net.mezimmah.wkt9.preferences.PreferencesActivity">
+
+    <subtype
+        android:label="English US"
+        android:imeSubtypeLocale="en_US"
+        android:languageTag="en-US"
+        android:imeSubtypeMode="keyboard" />
+
+</input-method>

app/src/test/java/net/mezimmah/wkt9/ExampleUnitTest.kt

@@ -0,0 +1,17 @@
+package net.mezimmah.wkt9
+
+import org.junit.Test
+
+import org.junit.Assert.*
+
+/**
+ * Example local unit test, which will execute on the development machine (host).
+ *
+ * See [testing documentation](http://d.android.com/tools/testing).
+ */
+class ExampleUnitTest {
+    @Test
+    fun addition_isCorrect() {
+        assertEquals(4, 2 + 2)
+    }
+}

build.gradle.kts

@@ -0,0 +1,6 @@
+// Top-level build file where you can add configuration options common to all sub-projects/modules.
+plugins {
+    id("com.android.application") version "8.1.0" apply false
+    id("org.jetbrains.kotlin.android") version "1.8.0" apply false
+    id("com.google.devtools.ksp") version "1.8.10-1.0.9" apply false
+}

gradle.properties

@@ -0,0 +1,23 @@
+# Project-wide Gradle settings.
+# IDE (e.g. Android Studio) users:
+# Gradle settings configured through the IDE *will override*
+# any settings specified in this file.
+# For more details on how to configure your build environment visit
+# http://www.gradle.org/docs/current/userguide/build_environment.html
+# Specifies the JVM arguments used for the daemon process.
+# The setting is particularly useful for tweaking memory settings.
+org.gradle.jvmargs=-Xmx2048m -Dfile.encoding=UTF-8
+# When configured, Gradle will run in incubating parallel mode.
+# This option should only be used with decoupled projects. More details, visit
+# http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects
+# org.gradle.parallel=true
+# AndroidX package structure to make it clearer which packages are bundled with the
+# Android operating system, and which are packaged with your app's APK
+# https://developer.android.com/topic/libraries/support-library/androidx-rn
+android.useAndroidX=true
+# Kotlin code style for this project: "official" or "obsolete":
+kotlin.code.style=official
+# Enables namespacing of each library's R class so that its R class includes only the
+# resources declared in the library itself and none from the library's dependencies,
+# thereby reducing the size of the R class for that library
+android.nonTransitiveRClass=true

gradle/wrapper/gradle-wrapper.properties

@@ -0,0 +1,6 @@
+#Wed Aug 23 10:24:57 CEST 2023
+distributionBase=GRADLE_USER_HOME
+distributionPath=wrapper/dists
+distributionUrl=https\://services.gradle.org/distributions/gradle-8.0-bin.zip
+zipStoreBase=GRADLE_USER_HOME
+zipStorePath=wrapper/dists

gradlew

@@ -0,0 +1,185 @@
+#!/usr/bin/env sh
+
+#
+# Copyright 2015 the original author or authors.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+
+##############################################################################
+##
+##  Gradle start up script for UN*X
+##
+##############################################################################
+
+# Attempt to set APP_HOME
+# Resolve links: $0 may be a link
+PRG="$0"
+# Need this for relative symlinks.
+while [ -h "$PRG" ] ; do
+    ls=`ls -ld "$PRG"`
+    link=`expr "$ls" : '.*-> \(.*\)$'`
+    if expr "$link" : '/.*' > /dev/null; then
+        PRG="$link"
+    else
+        PRG=`dirname "$PRG"`"/$link"
+    fi
+done
+SAVED="`pwd`"
+cd "`dirname \"$PRG\"`/" >/dev/null
+APP_HOME="`pwd -P`"
+cd "$SAVED" >/dev/null
+
+APP_NAME="Gradle"
+APP_BASE_NAME=`basename "$0"`
+
+# Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+DEFAULT_JVM_OPTS='"-Xmx64m" "-Xms64m"'
+
+# Use the maximum available, or set MAX_FD != -1 to use that value.
+MAX_FD="maximum"
+
+warn () {
+    echo "$*"
+}
+
+die () {
+    echo
+    echo "$*"
+    echo
+    exit 1
+}
+
+# OS specific support (must be 'true' or 'false').
+cygwin=false
+msys=false
+darwin=false
+nonstop=false
+case "`uname`" in
+  CYGWIN* )
+    cygwin=true
+    ;;
+  Darwin* )
+    darwin=true
+    ;;
+  MINGW* )
+    msys=true
+    ;;
+  NONSTOP* )
+    nonstop=true
+    ;;
+esac
+
+CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar
+
+
+# Determine the Java command to use to start the JVM.
+if [ -n "$JAVA_HOME" ] ; then
+    if [ -x "$JAVA_HOME/jre/sh/java" ] ; then
+        # IBM's JDK on AIX uses strange locations for the executables
+        JAVACMD="$JAVA_HOME/jre/sh/java"
+    else
+        JAVACMD="$JAVA_HOME/bin/java"
+    fi
+    if [ ! -x "$JAVACMD" ] ; then
+        die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+    fi
+else
+    JAVACMD="java"
+    which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+
+Please set the JAVA_HOME variable in your environment to match the
+location of your Java installation."
+fi
+
+# Increase the maximum file descriptors if we can.
+if [ "$cygwin" = "false" -a "$darwin" = "false" -a "$nonstop" = "false" ] ; then
+    MAX_FD_LIMIT=`ulimit -H -n`
+    if [ $? -eq 0 ] ; then
+        if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then
+            MAX_FD="$MAX_FD_LIMIT"
+        fi
+        ulimit -n $MAX_FD
+        if [ $? -ne 0 ] ; then
+            warn "Could not set maximum file descriptor limit: $MAX_FD"
+        fi
+    else
+        warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT"
+    fi
+fi
+
+# For Darwin, add options to specify how the application appears in the dock
+if $darwin; then
+    GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\""
+fi
+
+# For Cygwin or MSYS, switch paths to Windows format before running java
+if [ "$cygwin" = "true" -o "$msys" = "true" ] ; then
+    APP_HOME=`cygpath --path --mixed "$APP_HOME"`
+    CLASSPATH=`cygpath --path --mixed "$CLASSPATH"`
+
+    JAVACMD=`cygpath --unix "$JAVACMD"`
+
+    # We build the pattern for arguments to be converted via cygpath
+    ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null`
+    SEP=""
+    for dir in $ROOTDIRSRAW ; do
+        ROOTDIRS="$ROOTDIRS$SEP$dir"
+        SEP="|"
+    done
+    OURCYGPATTERN="(^($ROOTDIRS))"
+    # Add a user-defined pattern to the cygpath arguments
+    if [ "$GRADLE_CYGPATTERN" != "" ] ; then
+        OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)"
+    fi
+    # Now convert the arguments - kludge to limit ourselves to /bin/sh
+    i=0
+    for arg in "$@" ; do
+        CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -`
+        CHECK2=`echo "$arg"|egrep -c "^-"`                                 ### Determine if an option
+
+        if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then                    ### Added a condition
+            eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"`
+        else
+            eval `echo args$i`="\"$arg\""
+        fi
+        i=`expr $i + 1`
+    done
+    case $i in
+        0) set -- ;;
+        1) set -- "$args0" ;;
+        2) set -- "$args0" "$args1" ;;
+        3) set -- "$args0" "$args1" "$args2" ;;
+        4) set -- "$args0" "$args1" "$args2" "$args3" ;;
+        5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;;
+        6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;;
+        7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;;
+        8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;;
+        9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;;
+    esac
+fi
+
+# Escape application args
+save () {
+    for i do printf %s\\n "$i" | sed "s/'/'\\\\''/g;1s/^/'/;\$s/\$/' \\\\/" ; done
+    echo " "
+}
+APP_ARGS=`save "$@"`
+
+# Collect all arguments for the java command, following the shell quoting and substitution rules
+eval set -- $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS "\"-Dorg.gradle.appname=$APP_BASE_NAME\"" -classpath "\"$CLASSPATH\"" org.gradle.wrapper.GradleWrapperMain "$APP_ARGS"
+
+exec "$JAVACMD" "$@"

gradlew.bat

@@ -0,0 +1,89 @@
+@rem
+@rem Copyright 2015 the original author or authors.
+@rem
+@rem Licensed under the Apache License, Version 2.0 (the "License");
+@rem you may not use this file except in compliance with the License.
+@rem You may obtain a copy of the License at
+@rem
+@rem      https://www.apache.org/licenses/LICENSE-2.0
+@rem
+@rem Unless required by applicable law or agreed to in writing, software
+@rem distributed under the License is distributed on an "AS IS" BASIS,
+@rem WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+@rem See the License for the specific language governing permissions and
+@rem limitations under the License.
+@rem
+
+@if "%DEBUG%" == "" @echo off
+@rem ##########################################################################
+@rem
+@rem  Gradle startup script for Windows
+@rem
+@rem ##########################################################################
+
+@rem Set local scope for the variables with windows NT shell
+if "%OS%"=="Windows_NT" setlocal
+
+set DIRNAME=%~dp0
+if "%DIRNAME%" == "" set DIRNAME=.
+set APP_BASE_NAME=%~n0
+set APP_HOME=%DIRNAME%
+
+@rem Resolve any "." and ".." in APP_HOME to make it shorter.
+for %%i in ("%APP_HOME%") do set APP_HOME=%%~fi
+
+@rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script.
+set DEFAULT_JVM_OPTS="-Xmx64m" "-Xms64m"
+
+@rem Find java.exe
+if defined JAVA_HOME goto findJavaFromJavaHome
+
+set JAVA_EXE=java.exe
+%JAVA_EXE% -version >NUL 2>&1
+if "%ERRORLEVEL%" == "0" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH.
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:findJavaFromJavaHome
+set JAVA_HOME=%JAVA_HOME:"=%
+set JAVA_EXE=%JAVA_HOME%/bin/java.exe
+
+if exist "%JAVA_EXE%" goto execute
+
+echo.
+echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME%
+echo.
+echo Please set the JAVA_HOME variable in your environment to match the
+echo location of your Java installation.
+
+goto fail
+
+:execute
+@rem Setup the command line
+
+set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar
+
+
+@rem Execute Gradle
+"%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %*
+
+:end
+@rem End local scope for the variables with windows NT shell
+if "%ERRORLEVEL%"=="0" goto mainEnd
+
+:fail
+rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of
+rem the _cmd.exe /c_ return code!
+if  not "" == "%GRADLE_EXIT_CONSOLE%" exit 1
+exit /b 1
+
+:mainEnd
+if "%OS%"=="Windows_NT" endlocal
+
+:omega

settings.gradle.kts

@@ -0,0 +1,17 @@
+pluginManagement {
+    repositories {
+        google()
+        mavenCentral()
+        gradlePluginPortal()
+    }
+}
+dependencyResolutionManagement {
+    repositoriesMode.set(RepositoriesMode.FAIL_ON_PROJECT_REPOS)
+    repositories {
+        google()
+        mavenCentral()
+    }
+}
+
+rootProject.name = "WKT9"
+include(":app")