fix(gtk): move some network-dependent computation to background thread

launcher-gtk/src/main/kotlin/io/gitlab/jfronny/inceptum/gtk/IdleTaskQueue.kt

@@ -9,6 +9,10 @@ fun schedule(task: Runnable) {
     SCHEDULED.add(task)
 }
 
+fun backgroundTask(task: Runnable) {
+    Thread.ofVirtual().start(task)
+}
+
 fun runScheduledTasks() {
     var r: Runnable?
     while (SCHEDULED.poll().also { r = it } != null) {

launcher-gtk/src/main/kotlin/io/gitlab/jfronny/inceptum/gtk/window/create/NewInstanceWindow.kt

@@ -2,6 +2,7 @@ package io.gitlab.jfronny.inceptum.gtk.window.create
 
 import io.gitlab.jfronny.commons.StringFormatter
 import io.gitlab.jfronny.inceptum.common.InceptumConfig
+import io.gitlab.jfronny.inceptum.gtk.backgroundTask
 import io.gitlab.jfronny.inceptum.gtk.control.KDropDown
 import io.gitlab.jfronny.inceptum.gtk.control.KEntry
 import io.gitlab.jfronny.inceptum.gtk.control.assistant.KAssistant
@@ -137,12 +138,12 @@ class NewInstanceWindow(app: Application) : KAssistant(app) {
                 onClose { pState.cancel() }
                 onCancel { pState.cancel() }
                 pState.updateStep("Starting install process")
-                Thread {
+                backgroundTask {
                     try {
                         for (step in Steps.STEPS) {
                             if (state.isCancelled) {
                                 state.tryRemoveInstance()
-                                return@Thread
+                                return@backgroundTask
                             }
                             pState.incrementStep(step.name)
                             step.execute(state)
@@ -159,7 +160,7 @@ class NewInstanceWindow(app: Application) : KAssistant(app) {
                         schedule { setComplete(true) }
                         schedule { nextPage() }
                     }
-                }.start()
+                }
             }
         }
         page("Done", AssistantPageType.SUMMARY) {

launcher-gtk/src/main/kotlin/io/gitlab/jfronny/inceptum/gtk/window/dialog/ProcessStateWatcherDialog.kt

@@ -3,6 +3,7 @@ package io.gitlab.jfronny.inceptum.gtk.window.dialog
 import io.gitlab.jfronny.commons.StringFormatter
 import io.gitlab.jfronny.commons.throwable.ThrowingRunnable
 import io.gitlab.jfronny.inceptum.gtk.GtkEnvBackend
+import io.gitlab.jfronny.inceptum.gtk.backgroundTask
 import io.gitlab.jfronny.inceptum.gtk.schedule
 import io.gitlab.jfronny.inceptum.gtk.util.I18n
 import io.gitlab.jfronny.inceptum.gtk.util.Log
@@ -61,7 +62,7 @@ class ProcessStateWatcherDialog(
             }
             GLib.SOURCE_CONTINUE
         }
-        Thread {
+        backgroundTask {
             try {
                 executor.run()
             } catch (e: Throwable) {
@@ -78,7 +79,7 @@ class ProcessStateWatcherDialog(
                 finished = true
                 schedule { close() }
             }
-        }.start()
+        }
     }
 
     data class State(val msg: String, val progress: Float) {

launcher-gtk/src/main/kotlin/io/gitlab/jfronny/inceptum/gtk/window/settings/instance/GeneralTab.kt

@@ -6,8 +6,11 @@ import io.gitlab.jfronny.commons.io.JFiles
 import io.gitlab.jfronny.inceptum.common.InceptumConfig
 import io.gitlab.jfronny.inceptum.common.MetaHolder
 import io.gitlab.jfronny.inceptum.common.Utils
+import io.gitlab.jfronny.inceptum.gtk.backgroundTask
 import io.gitlab.jfronny.inceptum.gtk.control.ILabel
+import io.gitlab.jfronny.inceptum.gtk.control.KDropDown
 import io.gitlab.jfronny.inceptum.gtk.control.settings.SectionedSettingsTab
+import io.gitlab.jfronny.inceptum.gtk.schedule
 import io.gitlab.jfronny.inceptum.gtk.util.*
 import io.gitlab.jfronny.inceptum.launcher.api.FabricMetaApi
 import io.gitlab.jfronny.inceptum.launcher.api.McApi
@@ -53,7 +56,7 @@ class GeneralTab(window: InstanceSettingsWindow) : SectionedSettingsTab<Instance
             run {
                 var fabricEnabled: Switch? = null
                 var versionChanged: (() -> Unit)? = null
-                var fabricVersion: DropDown? = null
+                var fabricVersion: KDropDown<String>? = null
                 var defaultFabric: String? = null
                 var fabricVersions: Array<String>? = null
 
@@ -61,7 +64,7 @@ class GeneralTab(window: InstanceSettingsWindow) : SectionedSettingsTab<Instance
                     .filter { InceptumConfig.snapshots || it.type == "release" }
                     .map { it.id }
                     .toTypedArray()
-                val def = versions.withIndex().firstOrNull { it.value == instance.gameVersion }?.index ?: 0
+                val def = instance.gameVersion.let { gameVersion -> versions.withIndex().firstOrNull { it.value == gameVersion }?.index ?: 0 }
 
                 row("instance.settings.general.game.version", "instance.settings.general.game.version.subtitle") {
                     setDropdown(versions, def) { i ->
@@ -93,7 +96,7 @@ class GeneralTab(window: InstanceSettingsWindow) : SectionedSettingsTab<Instance
                 }
                 fabricEnabled.bindProperty("active", loaderRow, "visible", BindingFlags.DEFAULT)
 
-                versionChanged = {
+                versionChanged = { backgroundTask {
                     val ver = VERSIONS.versions.stream()
                         .filter { it.id == instance.gameVersion }
                         .findFirst()
@@ -108,18 +111,21 @@ class GeneralTab(window: InstanceSettingsWindow) : SectionedSettingsTab<Instance
                     fabricVersions = ver.map { Arrays.stream(it) }
                             .map { it.map { l -> l.loader.version }.toTypedArray() }
                             .orElse(null)
-                    if (fabricVersions == null || fabricVersions!!.isEmpty()) {
-                        fabricEnabled.active = false
-                    } else if (fabricVersion != null) fabricVersion!!.model = StringList(fabricVersions)
-                }
-                versionChanged()
+                    schedule {
+                        if (fabricVersions == null || fabricVersions!!.isEmpty()) {
+                            fabricEnabled.active = false
+                            fabricVersion!!.updateOptions(arrayOf(), Gtk.INVALID_LIST_POSITION)
+                        } else fabricVersion!!.updateOptions(fabricVersions!!, fabricVersions!!.indexOf(defaultFabric))
+                    }
+                } }
                 fabricVersion =
-                    loaderRow.setDropdown(fabricVersions!!, fabricVersions!!.indexOf(defaultFabric)) { i: Int ->
+                    loaderRow.setDropdown(arrayOf(), Gtk.INVALID_LIST_POSITION) { i: Int ->
                         instance.meta.gameVersion =
                             if (i == -1) instance.gameVersion
                             else GameVersionParser.createVersionWithFabric(instance.gameVersion, fabricVersions!![i])
                         instance.writeMeta()
                     }
+                versionChanged()
                 fabricVersion.enableSearch = true
             }
             row("instance.settings.general.game.java", "instance.settings.general.game.java.subtitle") {

launcher-gtk/src/main/kotlin/io/gitlab/jfronny/inceptum/gtk/window/settings/instance/ModsTab.kt

@@ -2,6 +2,7 @@ package io.gitlab.jfronny.inceptum.gtk.window.settings.instance
 
 import io.gitlab.jfronny.commons.concurrent.AsyncRequest
 import io.gitlab.jfronny.commons.concurrent.VoidFuture
+import io.gitlab.jfronny.inceptum.gtk.backgroundTask
 import io.gitlab.jfronny.inceptum.gtk.control.ILabel
 import io.gitlab.jfronny.inceptum.gtk.control.KDropDown
 import io.gitlab.jfronny.inceptum.gtk.control.KSignalListItemFactory
@@ -154,7 +155,7 @@ class ModsTab(window: InstanceSettingsWindow) : SettingsTab<Leaflet, InstanceSet
     fun updateSearch(search: String): Unit {
         descriptionLabel.text = "Searching is currently unsupported"
         currentSearchString = search
-        this.search.request()
+        backgroundTask { this.search.request() }
     }
     fun selectMod(mod: ModState): Unit {
         //TODO detailed menu for version selection, ...