KT-32366: Refactor ScratchPanelListener to ScratchFileListener

- it is done to move logical dependency from the UI element (`ScratchTopPanel`) to the model element (`ScratchFile`)

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ScratchFile.kt

@@ -23,6 +23,7 @@ import com.intellij.openapi.project.Project
 import com.intellij.psi.PsiDocumentManager
 import com.intellij.psi.PsiElement
 import com.intellij.psi.PsiFile
+import com.intellij.util.messages.Topic
 import org.jetbrains.kotlin.idea.scratch.ui.scratchFileOptions
 
 abstract class ScratchFile(val project: Project, val editor: TextEditor) {
@@ -82,4 +83,15 @@ data class ScratchFileOptions(
     val isRepl: Boolean = false,
     val isMakeBeforeRun: Boolean = false,
     val isInteractiveMode: Boolean = true
-)
+)
+
+interface ScratchFileListener {
+    fun fileCreated(file: ScratchFile)
+
+    companion object {
+        val TOPIC = Topic.create(
+            "ScratchFileListener",
+            ScratchFileListener::class.java
+        )
+    }
+}

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ScratchFileLanguageProvider.kt

@@ -25,6 +25,7 @@ import com.intellij.openapi.project.Project
 import org.jetbrains.kotlin.idea.scratch.actions.ScratchCompilationSupport
 import org.jetbrains.kotlin.idea.scratch.output.ScratchOutputHandler
 import org.jetbrains.kotlin.idea.scratch.output.ScratchOutputHandlerAdapter
+import org.jetbrains.kotlin.idea.syncPublisherWithDisposeCheck
 
 abstract class ScratchFileLanguageProvider {
     fun newScratchFile(project: Project, editor: TextEditor): ScratchFile? {
@@ -36,6 +37,8 @@ abstract class ScratchFileLanguageProvider {
         scratchFile.replScratchExecutor?.addOutputHandlers()
         scratchFile.compilingScratchExecutor?.addOutputHandlers()
 
+        scratchFile.project.syncPublisherWithDisposeCheck(ScratchFileListener.TOPIC).fileCreated(scratchFile)
+
         return scratchFile
     }
 

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ScratchFileModuleInfoProvider.kt

@@ -24,8 +24,6 @@ import com.intellij.openapi.project.Project
 import org.jetbrains.kotlin.idea.KotlinFileType
 import org.jetbrains.kotlin.idea.core.script.ScriptDependenciesModificationTracker
 import org.jetbrains.kotlin.idea.core.script.scriptRelatedModuleName
-import org.jetbrains.kotlin.idea.scratch.ui.ScratchPanelListener
-import org.jetbrains.kotlin.idea.scratch.ui.ScratchTopPanel
 import org.jetbrains.kotlin.idea.util.application.runWriteAction
 import org.jetbrains.kotlin.idea.util.projectStructure.getModule
 import org.jetbrains.kotlin.parsing.KotlinParserDefinition.Companion.STD_SCRIPT_EXT
@@ -36,10 +34,8 @@ class ScratchFileModuleInfoProvider(val project: Project) : ProjectComponent {
     private val LOG = Logger.getInstance(this.javaClass)
 
     override fun projectOpened() {
-        project.messageBus.connect().subscribe(ScratchPanelListener.TOPIC, object : ScratchPanelListener {
-            override fun panelAdded(panel: ScratchTopPanel) {
-                val scratchFile = panel.scratchFile
-
+        project.messageBus.connect().subscribe(ScratchFileListener.TOPIC, object : ScratchFileListener {
+            override fun fileCreated(scratchFile: ScratchFile) {
                 val ktFile = scratchFile.getPsiFile() as? KtFile ?: return
                 val file = ktFile.virtualFile ?: return
 

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/scratchUtils.kt

@@ -17,9 +17,7 @@ import com.intellij.openapi.util.Key
 import com.intellij.openapi.vfs.VirtualFile
 import org.jetbrains.annotations.TestOnly
 import org.jetbrains.kotlin.idea.actions.KOTLIN_WORKSHEET_EXTENSION
-import org.jetbrains.kotlin.idea.scratch.ui.ScratchPanelListener
 import org.jetbrains.kotlin.idea.scratch.ui.ScratchTopPanel
-import org.jetbrains.kotlin.idea.syncPublisherWithDisposeCheck
 import org.jetbrains.kotlin.psi.UserDataProperty
 
 internal val LOG = Logger.getInstance("#org.jetbrains.kotlin.idea.scratch")
@@ -69,7 +67,6 @@ fun TextEditor.addScratchPanel(panel: ScratchTopPanel) {
     FileEditorManager.getInstance(panel.scratchFile.project).addTopComponent(this, panel.component)
 
     Disposer.register(this, panel)
-    panel.scratchFile.project.syncPublisherWithDisposeCheck(ScratchPanelListener.TOPIC).panelAdded(panel)
 }
 
 private var TextEditor.scratchTopPanel: ScratchTopPanel? by UserDataProperty<TextEditor, ScratchTopPanel>(Key.create("scratch.panel"))