Android: Use arhive filename as alternate launcher item name

The title.txt file is written when the MT command is used, however some
games (Daiakuji, AmbivalenZ, Ikenai Katsumi sensei) does not use the MT
command. As a result, these titles did not appear in the launcher.

This makes the launcher use the name of the ZIP archive when the game
was installed as the alternate item name if the MT command was not used.

android/app/src/main/java/io/github/kichikuou/xsystem35/GameActivity.kt

@@ -29,6 +29,7 @@ import java.io.IOException
 class GameActivity : SDLActivity() {
     companion object {
         const val EXTRA_GAME_ROOT = "GAME_ROOT"
+        const val EXTRA_ARCHIVE_NAME = "ARCHIVE_NAME"
     }
 
     private lateinit var gameRoot: File
@@ -63,9 +64,12 @@ class GameActivity : SDLActivity() {
 
     override fun setTitle(title: CharSequence?) {
         super.setTitle(title)
-        val str = title?.toString()?.substringAfter(':', "")
-        if (str.isNullOrEmpty())
-            return
+        var str = title?.toString()?.substringAfter(':', "")
+        if (str.isNullOrEmpty()) {
+            str = intent.getStringExtra(EXTRA_ARCHIVE_NAME)
+            if (str == null)
+                return
+        }
         File(gameRoot, Launcher.TITLE_FILE).writeText(str)
         Launcher.updateGameList()
     }

android/app/src/main/java/io/github/kichikuou/xsystem35/Launcher.kt

@@ -35,7 +35,7 @@ private var gLauncher: Launcher? = null
 interface LauncherObserver {
     fun onGameListChange()
     fun onInstallProgress(path: String)
-    fun onInstallSuccess(path: File)
+    fun onInstallSuccess(path: File, archiveName: String?)
     fun onInstallFailure(msgId: Int)
 }
 
@@ -73,7 +73,7 @@ class Launcher private constructor(private val rootDir: File) {
         updateGameList()
     }
 
-    fun install(input: InputStream) {
+    fun install(input: InputStream, archiveName: String?) {
         val dir = createDirForGame()
         @SuppressLint("HandlerLeak")
         val handler = object : Handler() {
@@ -84,7 +84,7 @@ class Launcher private constructor(private val rootDir: File) {
                     }
                     SUCCESS -> {
                         isInstalling = false
-                        observer?.onInstallSuccess(msg.obj as File)
+                        observer?.onInstallSuccess(msg.obj as File, archiveName)
                     }
                     FAILURE -> {
                         isInstalling = false

android/app/src/main/java/io/github/kichikuou/xsystem35/LauncherActivity.kt

@@ -19,7 +19,9 @@ package io.github.kichikuou.xsystem35
 
 import android.app.*
 import android.content.Intent
+import android.net.Uri
 import android.os.Bundle
+import android.provider.OpenableColumns
 import android.util.Log
 import android.view.Menu
 import android.view.MenuItem
@@ -60,7 +62,7 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
     override fun onListItemClick(l: ListView?, v: View?, position: Int, id: Long) {
         super.onListItemClick(l, v, position, id)
         if (position < launcher.games.size) {
-            startGame(launcher.games[position].path)
+            startGame(launcher.games[position].path, null)
         } else {
             val i = Intent(Intent.ACTION_GET_CONTENT)
             i.type = CONTENT_TYPE_ZIP
@@ -112,7 +114,7 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
             INSTALL_REQUEST -> {
                 val input = contentResolver.openInputStream(uri) ?: return
                 showProgressDialog()
-                launcher.install(input)
+                launcher.install(input, getArchiveName(uri))
             }
             SAVEDATA_EXPORT_REQUEST -> try {
                 launcher.exportSaveData(contentResolver.openOutputStream(uri)!!)
@@ -144,9 +146,9 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
         progressDialog?.setProgress(getString(R.string.install_progress, path))
     }
 
-    override fun onInstallSuccess(path: File) {
+    override fun onInstallSuccess(path: File, archiveName: String?) {
         dismissProgressDialog()
-        startGame(path)
+        startGame(path, archiveName)
     }
 
     override fun onInstallFailure(msgId: Int) {
@@ -154,10 +156,11 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
         errorDialog(msgId)
     }
 
-    private fun startGame(path: File) {
+    private fun startGame(path: File, archiveName: String?) {
         val i = Intent()
         i.setClass(applicationContext, GameActivity::class.java)
         i.putExtra(GameActivity.EXTRA_GAME_ROOT, path.path)
+        i.putExtra(GameActivity.EXTRA_ARCHIVE_NAME, archiveName)
         startActivity(i)
     }
 
@@ -181,6 +184,17 @@ class LauncherActivity : ListActivity(), AdapterView.OnItemLongClickListener, La
                 .setPositiveButton(R.string.ok) {_, _ -> }
                 .show()
     }
+
+    private fun getArchiveName(uri: Uri): String? {
+        val cursor = contentResolver.query(uri, null, null, null, null, null)
+        cursor?.use {
+            if (it.moveToFirst()) {
+                val fname = it.getString(it.getColumnIndex(OpenableColumns.DISPLAY_NAME))
+                return if (fname.endsWith(".zip", true)) fname.dropLast(4) else fname
+            }
+        }
+        return null
+    }
 }
 
 @Suppress("DEPRECATION") // for ProgressDialog