MPP wizard: add combo-box with JDK for JVM platform, if any

Related to KT-23097

idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleMultiplatformModuleBuilder.kt

@@ -36,6 +36,7 @@ import javax.swing.Icon
 class KotlinGradleMultiplatformModuleBuilder : GradleModuleBuilder() {
     var commonModuleName: String? = null
     var jvmModuleName: String? = null
+    var jdk: Sdk? = null
     var jsModuleName: String? = null
 
     override fun getBuilderId() = "kotlin.gradle.multiplatform"
@@ -60,7 +61,7 @@ class KotlinGradleMultiplatformModuleBuilder : GradleModuleBuilder() {
 
         val contentRoot = module.rootManager.contentRoots.firstOrNull() ?: return
         setupCommonModule(module, contentRoot)
-        setupPlatformModule(module, contentRoot, jvmModuleName, GradleKotlinMPPJavaFrameworkSupportProvider())
+        setupPlatformModule(module, contentRoot, jvmModuleName, GradleKotlinMPPJavaFrameworkSupportProvider(), jdk)
         setupPlatformModule(module, contentRoot, jsModuleName, GradleKotlinMPPJSFrameworkSupportProvider())
 
         val settingsGradle = contentRoot.findChild("settings.gradle")
@@ -78,13 +79,14 @@ class KotlinGradleMultiplatformModuleBuilder : GradleModuleBuilder() {
         rootModule: Module,
         contentRoot: VirtualFile,
         childModuleName: String?,
+        sdk: Sdk? = null,
         extendScript: (BuildScriptDataBuilder, Sdk?) -> Unit = { _, _ -> }
     ) {
         if (childModuleName.isNullOrEmpty()) return
         val moduleDir = contentRoot.createChildDirectory(this, childModuleName!!)
         val buildGradle = moduleDir.createChildData(null, "build.gradle")
         val buildScriptData = BuildScriptDataBuilder(buildGradle)
-        extendScript(buildScriptData, rootModule.rootManager.sdk)
+        extendScript(buildScriptData, sdk ?: rootModule.rootManager.sdk)
         VfsUtil.saveText(buildGradle, buildScriptData.buildConfigurationPart() + buildScriptData.buildMainPart())
     }
 
@@ -99,9 +101,10 @@ class KotlinGradleMultiplatformModuleBuilder : GradleModuleBuilder() {
         rootModule: Module,
         contentRoot: VirtualFile,
         platformModuleName: String?,
-        supportProvider: GradleKotlinFrameworkSupportProvider
-    ) = setupChildModule(rootModule, contentRoot, platformModuleName) { builder, sdk ->
-        supportProvider.addSupport(builder, sdk)
+        supportProvider: GradleKotlinFrameworkSupportProvider,
+        sdk: Sdk? = null
+    ) = setupChildModule(rootModule, contentRoot, platformModuleName, sdk) { builder, finalSdk ->
+        supportProvider.addSupport(builder, finalSdk)
         val dependency = commonModuleName ?: ""
         builder.addDependencyNotation("expectedBy project(\":$dependency\")")
     }

idea/idea-gradle/src/org/jetbrains/kotlin/idea/configuration/KotlinGradleMultiplatformWizardStep.kt

@@ -21,6 +21,10 @@ import com.intellij.ide.util.projectWizard.ProjectWizardUtil
 import com.intellij.ide.util.projectWizard.WizardContext
 import com.intellij.openapi.externalSystem.model.project.ProjectId
 import com.intellij.openapi.options.ConfigurationException
+import com.intellij.openapi.projectRoots.JavaSdk
+import com.intellij.openapi.projectRoots.Sdk
+import com.intellij.openapi.roots.ui.configuration.JdkComboBox
+import com.intellij.openapi.roots.ui.configuration.projectRoot.ProjectSdksModel
 import com.intellij.openapi.ui.LabeledComponent
 import com.intellij.ui.DocumentAdapter
 import com.intellij.ui.PanelWithAnchor
@@ -43,6 +47,10 @@ class KotlinGradleMultiplatformWizardStep(
         LabeledComponent.create(JTextField(), "Common module name:", BorderLayout.WEST)
     private val jvmCheckBox: JCheckBox =
         JCheckBox("Create JVM module", true)
+    private val jdkComboBox: JdkComboBox =
+        JdkComboBox(ProjectSdksModel().also {
+            it.reset(null)
+        }) { it is JavaSdk }
     private val jvmModuleNameComponent: LabeledComponent<JTextField> =
         LabeledComponent.create(JTextField(), "JVM module name:", BorderLayout.WEST)
     private val jsCheckBox: JCheckBox =
@@ -97,6 +105,7 @@ class KotlinGradleMultiplatformWizardStep(
 
         jvmCheckBox.addItemListener {
             jvmModuleNameComponent.isEnabled = jvmCheckBox.isSelected
+            jdkComboBox.isEnabled = jvmCheckBox.isSelected
         }
         jsCheckBox.addItemListener {
             jsModuleNameComponent.isEnabled = jsCheckBox.isSelected
@@ -127,6 +136,14 @@ class KotlinGradleMultiplatformWizardStep(
                 JBUI.emptyInsets(), 0, 0
             )
         )
+        panel.add(
+            jdkComboBox,
+            GridBagConstraints(
+                0, GridBagConstraints.RELATIVE, 1, 1, 1.0, 0.0,
+                GridBagConstraints.NORTHWEST, GridBagConstraints.HORIZONTAL,
+                JBUI.emptyInsets(), 0, 0
+            )
+        )
         panel.add(
             jvmModuleNameComponent,
             GridBagConstraints(
@@ -181,6 +198,7 @@ class KotlinGradleMultiplatformWizardStep(
         builder.projectId = ProjectId("", rootModuleName, "")
         builder.commonModuleName = commonModuleName
         builder.jvmModuleName = jvmModuleName
+        builder.jdk = jdk
         builder.jsModuleName = jsModuleName
     }
 
@@ -192,6 +210,8 @@ class KotlinGradleMultiplatformWizardStep(
         get() = commonModuleNameComponent.component.text
     private val jvmModuleName: String
         get() = if (jvmCheckBox.isSelected) jvmModuleNameComponent.component.text else ""
+    private val jdk: Sdk?
+        get() = if (jvmCheckBox.isSelected) jdkComboBox.selectedJdk else null
     private val jsModuleName: String
         get() = if (jsCheckBox.isSelected) jsModuleNameComponent.component.text else ""