gradle.kts standalone scripts: show actions inside single notification

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/configuration/DefaultScriptingSupport.kt

@@ -175,14 +175,15 @@ class DefaultScriptingSupport(manager: CompositeScriptConfigurationManager) : De
                     loaders.firstOrNull { it.loadDependencies(isFirstLoad, file, scriptDefinition, loadingContext) }
                 } else {
                     val autoReloadEnabled = KotlinScriptingSettings.getInstance(project).autoReloadConfigurations(scriptDefinition)
-                    val postponeLoading = !skipNotification && !autoReloadEnabled && async.any { it.isPostponedLoad(virtualFile) }
-                    val forceSkipNotification = skipNotification || autoReloadEnabled || postponeLoading
+                    val forceSkipNotification = skipNotification || autoReloadEnabled
 
-                    if (postponeLoading) {
-                        LoadScriptConfigurationNotificationFactory.showNotification(virtualFile, project) {
-                            runAsyncLoaders(file, virtualFile, scriptDefinition, async, forceSkipNotification)
+                    val intercepted = !forceSkipNotification && async.any {
+                        it.interceptBackgroundLoading(virtualFile) {
+                            runAsyncLoaders(file, virtualFile, scriptDefinition, listOf(it), true)
                         }
-                    } else {
+                    }
+
+                    if (!intercepted) {
                         runAsyncLoaders(file, virtualFile, scriptDefinition, async, forceSkipNotification)
                     }
                 }

idea/idea-core/src/org/jetbrains/kotlin/idea/core/script/configuration/loader/ScriptConfigurationLoader.kt

@@ -15,15 +15,10 @@ import org.jetbrains.kotlin.scripting.definitions.ScriptDefinition
  * @see [org.jetbrains.kotlin.idea.core.script.configuration.DefaultScriptConfigurationManager] for more details.
  */
 interface ScriptConfigurationLoader {
-    /**
-     * Show notification before doing load
-     *
-     * (by default loading notification will be shown only after loading, to check that configuration is changed)
-     */
-    fun isPostponedLoad(virtualFile: VirtualFile): Boolean = false
-
     fun shouldRunInBackground(scriptDefinition: ScriptDefinition): Boolean = false
 
+    fun interceptBackgroundLoading(file: VirtualFile, doLoad: () -> Unit): Boolean = false
+
     /**
      * Implementation should load configuration and call `context.suggestNewConfiguration` or `saveNewConfiguration`.
      *