Configuration: Add Kotlin SDK for non-JVM projects

#KT-16976 Fixed

idea/idea-jvm/src/org/jetbrains/kotlin/idea/framework/KotlinModuleBuilder.kt

@@ -20,8 +20,10 @@ import com.intellij.ide.util.projectWizard.JavaModuleBuilder
 import com.intellij.ide.util.projectWizard.ModuleWizardStep
 import com.intellij.ide.util.projectWizard.SettingsStep
 import com.intellij.ide.util.projectWizard.WizardContext
+import com.intellij.openapi.projectRoots.SdkTypeId
 import com.intellij.openapi.roots.ui.configuration.ModulesProvider
 import org.jetbrains.kotlin.resolve.TargetPlatform
+import org.jetbrains.kotlin.resolve.jvm.platform.JvmPlatform
 import javax.swing.Icon
 
 class KotlinModuleBuilder(
@@ -38,4 +40,9 @@ class KotlinModuleBuilder(
     override fun modifySettingsStep(settingsStep: SettingsStep): ModuleWizardStep {
         return KotlinModuleSettingStep(targetPlatform, this, settingsStep)
     }
+
+    override fun isSuitableSdkType(sdkType: SdkTypeId?) = when (targetPlatform) {
+        is JvmPlatform -> super.isSuitableSdkType(sdkType)
+        else -> sdkType is KotlinSdkType
+    }
 }

idea/src/META-INF/plugin.xml

@@ -784,6 +784,8 @@
 
     <lang.jvm.actions.jvmElementActionsFactory implementation="org.jetbrains.kotlin.idea.quickfix.crossLanguage.KotlinElementActionsFactory"/>
 
+    <sdkType implementation="org.jetbrains.kotlin.idea.framework.KotlinSdkType"/>
+
     <intentionAction>
       <className>org.jetbrains.kotlin.idea.intentions.FoldInitializerAndIfToElvisIntention</className>
       <category>Kotlin</category>

idea/src/org/jetbrains/kotlin/idea/framework/KotlinSdkType.kt

@@ -0,0 +1,57 @@
+/*
+ * Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+/*
+ * Copyright 2000-2018 JetBrains s.r.o. Use of this source code is governed by the Apache 2.0 license
+ * that can be found in the license/LICENSE.txt file.
+ */
+
+package org.jetbrains.kotlin.idea.framework
+
+import com.intellij.openapi.projectRoots.*
+import com.intellij.openapi.projectRoots.impl.ProjectJdkImpl
+import com.intellij.openapi.projectRoots.impl.SdkConfigurationUtil
+import com.intellij.util.Consumer
+import org.jdom.Element
+import org.jetbrains.kotlin.idea.KotlinIcons
+import org.jetbrains.kotlin.idea.versions.bundledRuntimeVersion
+import javax.swing.JComponent
+
+class KotlinSdkType : SdkType("KotlinSDK") {
+    companion object {
+        const val DEFAULT_SDK_NAME = "Kotlin SDK"
+    }
+
+    override fun getPresentableName() = DEFAULT_SDK_NAME
+
+    override fun getIcon() = KotlinIcons.SMALL_LOGO
+
+    override fun isValidSdkHome(path: String?) = true
+
+    override fun suggestSdkName(currentSdkName: String?, sdkHome: String?) = "Kotlin SDK"
+
+    override fun suggestHomePath() = null
+
+    override fun sdkHasValidPath(sdk: Sdk) = true
+
+    override fun getVersionString(sdk: Sdk) = bundledRuntimeVersion()
+
+    override fun supportsCustomCreateUI() = true
+
+    override fun showCustomCreateUI(sdkModel: SdkModel, parentComponent: JComponent, selectedSdk: Sdk?, sdkCreatedCallback: Consumer<Sdk>) {
+        val newSdkName = SdkConfigurationUtil.createUniqueSdkName(this, "", sdkModel.sdks.toList())
+        sdkCreatedCallback.consume(newSdk(newSdkName))
+    }
+
+    fun newSdk(name: String) = ProjectJdkImpl(name, this).apply {
+        homePath = "not applicable"
+    }
+
+    override fun createAdditionalDataConfigurable(sdkModel: SdkModel, sdkModificator: SdkModificator) = null
+
+    override fun saveAdditionalData(additionalData: SdkAdditionalData, additional: Element) {
+
+    }
+}