KT-28910: Add tooltips for toolbar checkboxes in .kts scratch editor

- make `ScratchFileAutoRunner.AUTO_RUN_DELAY_IN_SECONDS` public
- remove `Show preview only` mode button from the toolbar
- ^KT-28910 Fixed

idea/idea-analysis/resources/org/jetbrains/kotlin/idea/KotlinBundle.properties

@@ -258,6 +258,13 @@ scratch.stop.button=Stop scratch execution
 scratch.clear.button=Clear results
 scratch.module.combobox=Use classpath of module
 scratch.is.repl.checkbox=Use REPL
+scratch.is.repl.checkbox.description=Runs in the Kotlin REPL. Executes only the new expressions added to the end of the scratch
 scratch.is.interactive.checkbox=Interactive mode
+scratch.is.interactive.checkbox.description=Runs after you stop typing for {0} seconds
 scratch.make.before.run.checkbox=Make module before Run
+scratch.make.before.run.checkbox.description=Make module {0} before running scratch. Only compiled code is reachable from this scope
+scratch.inlay.output.mode=Inlay output mode\n\nThe output is shown in the code editor right next to the expression. Well suited for a short single-line output.
+scratch.side.panel.output.mode.description=Side panel output mode
+scratch.side.panel.output.mode=Side panel output mode\n\nThe output is shown in the separate panel. Useful if the output is long or multi-line.
+scratch.inlay.output.mode.description=Inlay output mode
 

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

@@ -34,7 +34,7 @@ class ScratchFileAutoRunner(private val project: Project) : DocumentListener {
 
         private fun getInstance(project: Project) = ServiceManager.getService(project, ScratchFileAutoRunner::class.java)
 
-        private const val auto_run_delay = 2000
+        const val AUTO_RUN_DELAY_IN_SECONDS = 2
     }
 
     private val myAlarm = Alarm(Alarm.ThreadToUse.SWING_THREAD, project)
@@ -68,7 +68,7 @@ class ScratchFileAutoRunner(private val project: Project) : DocumentListener {
                         RunScratchAction.doAction(scratchFile, true)
                     }
                 }
-            }, auto_run_delay, true
+            }, AUTO_RUN_DELAY_IN_SECONDS * 1000, true
         )
     }
 

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ui/KtScratchFileEditorProvider.kt

@@ -9,7 +9,7 @@ import com.intellij.codeInsight.daemon.DaemonCodeAnalyzer
 import com.intellij.diff.tools.util.BaseSyncScrollable
 import com.intellij.diff.tools.util.SyncScrollSupport.TwosideSyncScrollSupport
 import com.intellij.openapi.Disposable
-import com.intellij.openapi.actionSystem.ActionToolbar
+import com.intellij.openapi.actionSystem.*
 import com.intellij.openapi.application.ApplicationManager
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.EditorFactory
@@ -27,6 +27,7 @@ import com.intellij.openapi.vfs.VirtualFile
 import com.intellij.pom.Navigatable
 import com.intellij.psi.PsiManager
 import org.jetbrains.annotations.TestOnly
+import org.jetbrains.kotlin.idea.KotlinBundle
 import org.jetbrains.kotlin.idea.scratch.*
 import org.jetbrains.kotlin.idea.scratch.output.*
 import org.jetbrains.kotlin.psi.UserDataProperty
@@ -136,6 +137,27 @@ class KtScratchFileEditorWithPreview private constructor(
         commonPreviewOutputHandler.clear(scratchFile)
     }
 
+    override fun createViewActionGroup(): ActionGroup {
+        return DefaultActionGroup(showEditorAction, showEditorAndPreviewAction)
+    }
+
+    /**
+     * For simple actions, [Presentation.getText] is shown in the tooltip in the [ActionToolbar], and [Presentation.getDescription] is shown
+     * in the bottom tool panel. But when action implements [com.intellij.openapi.actionSystem.ex.CustomComponentAction], its tooltip is
+     * controlled only by its [javax.swing.JComponent.setToolTipText] method.
+     *
+     * That's why we set long and descriptive [Presentation.getText], but short [Presentation.getDescription].
+     */
+    override fun getShowEditorAction(): ToggleAction = super.getShowEditorAction().apply {
+        templatePresentation.text = KotlinBundle.message("scratch.inlay.output.mode")
+        templatePresentation.description = KotlinBundle.message("scratch.inlay.output.mode.description")
+    }
+
+    override fun getShowEditorAndPreviewAction(): ToggleAction = super.getShowEditorAndPreviewAction().apply {
+        templatePresentation.text = KotlinBundle.message("scratch.side.panel.output.mode")
+        templatePresentation.description = KotlinBundle.message("scratch.side.panel.output.mode.description")
+    }
+
     override fun setLayout(newLayout: Layout) {
         val previous = layout
         super.setLayout(newLayout)

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ui/ScratchTopPanel.kt

@@ -21,6 +21,7 @@ import com.intellij.openapi.actionSystem.*
 import com.intellij.openapi.application.ApplicationManager
 import org.jetbrains.kotlin.idea.KotlinBundle
 import org.jetbrains.kotlin.idea.scratch.ScratchFile
+import org.jetbrains.kotlin.idea.scratch.ScratchFileAutoRunner
 import org.jetbrains.kotlin.idea.scratch.actions.ClearScratchAction
 import org.jetbrains.kotlin.idea.scratch.actions.RunScratchAction
 import org.jetbrains.kotlin.idea.scratch.actions.StopScratchAction
@@ -80,6 +81,9 @@ class ScratchTopPanel(val scratchFile: ScratchFile) {
         override fun update(e: AnActionEvent) {
             super.update(e)
             e.presentation.isVisible = scratchFile.module != null
+            e.presentation.description = scratchFile.module?.let { selectedModule ->
+                KotlinBundle.message("scratch.make.before.run.checkbox.description", selectedModule.name)
+            }
         }
 
         override fun isSelected(e: AnActionEvent): Boolean {
@@ -91,7 +95,10 @@ class ScratchTopPanel(val scratchFile: ScratchFile) {
         }
     }
 
-    private inner class IsInteractiveCheckboxAction : SmallBorderCheckboxAction(KotlinBundle.message("scratch.is.interactive.checkbox")) {
+    private inner class IsInteractiveCheckboxAction : SmallBorderCheckboxAction(
+        text = KotlinBundle.message("scratch.is.interactive.checkbox"),
+        description = KotlinBundle.message("scratch.is.interactive.checkbox.description", ScratchFileAutoRunner.AUTO_RUN_DELAY_IN_SECONDS)
+    ) {
         override fun isSelected(e: AnActionEvent): Boolean {
             return scratchFile.options.isInteractiveMode
         }
@@ -101,7 +108,10 @@ class ScratchTopPanel(val scratchFile: ScratchFile) {
         }
     }
 
-    private inner class IsReplCheckboxAction : SmallBorderCheckboxAction(KotlinBundle.message("scratch.is.repl.checkbox")) {
+    private inner class IsReplCheckboxAction : SmallBorderCheckboxAction(
+        text = KotlinBundle.message("scratch.is.repl.checkbox"),
+        description = KotlinBundle.message("scratch.is.repl.checkbox.description")
+    ) {
         override fun isSelected(e: AnActionEvent): Boolean {
             return scratchFile.options.isRepl
         }

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ui/SmallBorderCheckboxAction.kt

@@ -10,7 +10,7 @@ import com.intellij.openapi.actionSystem.ex.CheckboxAction
 import com.intellij.util.ui.JBUI
 import javax.swing.JComponent
 
-abstract class SmallBorderCheckboxAction(label: String) : CheckboxAction(label) {
+abstract class SmallBorderCheckboxAction(text: String, description: String? = null) : CheckboxAction(text, description, null) {
     override fun createCustomComponent(presentation: Presentation, place: String): JComponent {
         val checkbox = super.createCustomComponent(presentation, place)
         checkbox.border = JBUI.Borders.emptyRight(4)

idea/idea-jvm/src/org/jetbrains/kotlin/idea/scratch/ui/SmallBorderCheckboxAction.kt.183

@@ -10,7 +10,7 @@ import com.intellij.openapi.actionSystem.ex.CheckboxAction
 import com.intellij.util.ui.JBUI
 import javax.swing.JComponent
 
-abstract class SmallBorderCheckboxAction(label: String) : CheckboxAction(label) {
+abstract class SmallBorderCheckboxAction(text: String, description: String? = null) : CheckboxAction(text, description, null) {
     override fun createCustomComponent(presentation: Presentation): JComponent {
         val checkbox = super.createCustomComponent(presentation)
         checkbox.border = JBUI.Borders.emptyRight(4)