Stores: a finished install rebuilds the Installed tab and the Games list

app/src/main/java/com/droiddeck/launcher/MainActivity.kt

@@ -922,8 +922,10 @@ class MainActivity : ComponentActivity() {
     override fun onResume() {
         super.onResume()
         refreshWifiDiscovery()
-        // Back from a store's sign-in page: the Stores chips show the account at once.
+        // Back from a store's sign-in page: the Stores chips show the account at once. A store
+        // install finishing while this screen is up rebuilds the Games list through the listener.
         if (gameStoresEnabled) com.droiddeck.launcher.stores.StoresState.refresh(this)
+        com.droiddeck.launcher.stores.StoresState.libraryListener = { refreshAddedGames(); refresh() }
         com.droiddeck.launcher.ui.Motion.refresh(this)
         // Back from a session stopped behind a flood: open on its blue, before the first frame.
         com.droiddeck.launcher.ui.QuitFlood.take()?.let { c ->
@@ -981,6 +983,8 @@ class MainActivity : ComponentActivity() {
         unregisterReceiver(wifiLocationReceiver)
         unregisterReceiver(mediaReceiver)
         ui.removeCallbacks(mediaRefresh)
+        // An install finishing while this screen is away is picked up by onResume's refresh.
+        com.droiddeck.launcher.stores.StoresState.libraryListener = null
         displayManager.unregisterDisplayListener(secondScreenDisplayListener)
         // The session covers the page by now; coming back finds it as it was.
         flood = null

app/src/main/java/com/droiddeck/launcher/stores/StoresState.kt

@@ -129,6 +129,15 @@ object StoresState {
         }, "stores-uninstall").start()
     }
 
+    /** Told on the main thread when an install or removal changed what is on disk; the launcher rebuilds its Games list. */
+    @Volatile var libraryListener: (() -> Unit)? = null
+
+    /** A game landed or went: the installed set is re-read and the launcher told. Any thread. */
+    fun notifyLibraryChanged(context: Context) {
+        refresh(context)
+        main.post { libraryListener?.invoke() }
+    }
+
     /** Appends to the engine log with a clock, keeping the last 80 lines. Any thread. */
     fun logLine(text: String) {
         val stamped = "${CLOCK.format(Date())}  $text"

app/src/main/java/com/droiddeck/launcher/stores/download/DownloadQueue.kt

@@ -207,8 +207,13 @@ object DownloadQueue {
             publishLocked()
         }
         when (item.entry.state) {
-            DownloadState.INSTALLED -> StoresState.logLine("installed \"${item.entry.name}\" → ${result}")
+            DownloadState.INSTALLED -> {
+                StoresState.logLine("installed \"${item.entry.name}\" → ${result}")
+                // The folder is on disk and registered: the Installed tab and the Games list follow.
+                StoresState.notifyLibraryChanged(context)
+            }
             DownloadState.FAILED -> StoresState.logLine("${item.entry.store.label}: \"${item.entry.name}\" failed: $error")
+            DownloadState.CANCELLED -> StoresState.notifyLibraryChanged(context)
             else -> {}
         }
         StoreDownloadService.finish(context, item.entry.key)