Add an ability to switch between old and new J2K via settings window

Before that it was possible to do only via registry

#KT-33371 fixed

idea/performanceTests/org/jetbrains/kotlin/idea/perf/AbstractPerformanceJavaToKotlinCopyPasteConversionTest.kt

@@ -13,6 +13,7 @@ import com.intellij.psi.PsiDocumentManager
 import org.jetbrains.kotlin.idea.KotlinFileType
 import org.jetbrains.kotlin.idea.conversion.copy.AbstractJavaToKotlinCopyPasteConversionTest
 import org.jetbrains.kotlin.idea.conversion.copy.ConvertJavaCopyPasteProcessor
+import org.jetbrains.kotlin.j2k.J2kConverterExtension
 import org.jetbrains.kotlin.test.InTextDirectivesUtils
 import org.jetbrains.kotlin.test.KotlinTestUtils
 import java.io.File
@@ -35,7 +36,7 @@ abstract class AbstractPerformanceJavaToKotlinCopyPasteConversionTest(private va
     override fun setUp() {
         super.setUp()
 
-        Registry.get("kotlin.use.new.j2k").setValue(newJ2K)
+        J2kConverterExtension.isNewJ2k = newJ2K
         val index = j2kIndex()
 
         if (!warmedUp[index]) {

idea/resources/META-INF/extensions/ide.xml

@@ -92,10 +92,6 @@
      </extensions>
 
     <extensions defaultExtensionNs="com.intellij">
-        <registryKey key="kotlin.use.new.j2k"
-                             description="Use new Java to Kotlin Converter (experimental)"
-                             defaultValue="true"
-                             restartRequired="false"/>
         <registryKey key="kotlin.mpp.editTargetPlatformEnabled"
                      description="Enable manual editing of MPP target platforms"
                      defaultValue="false"

idea/resources/META-INF/extensions/ide.xml.183

@@ -100,10 +100,6 @@
     </extensions>
 
     <extensions defaultExtensionNs="com.intellij">
-        <registryKey key="kotlin.use.new.j2k"
-                     description="Use new Java to Kotlin Converter (experimental)"
-                     defaultValue="true"
-                     restartRequired="false"/>
         <registryKey key="kotlin.android.import.mpp.all.transitive"
                      description="Add all transitive dependencies on MPP modules when Android project is imported"
                      defaultValue="true"

idea/resources/META-INF/extensions/ide.xml.as33

@@ -92,10 +92,6 @@
     </extensions>
 
     <extensions defaultExtensionNs="com.intellij">
-        <registryKey key="kotlin.use.new.j2k"
-                   description="Use new Java to Kotlin Converter (experimental)"
-                   defaultValue="true"
-                   restartRequired="false"/>
         <registryKey key="kotlin.android.import.mpp.all.transitive"
                      description="Add all transitive dependencies on MPP modules when Android project is imported"
                      defaultValue="true"

idea/resources/META-INF/extensions/ide.xml.as34

@@ -91,10 +91,6 @@
         <j2kConverterExtension implementation="org.jetbrains.kotlin.nj2k.NewJ2kConverterExtension"/>
     </extensions>
     <extensions defaultExtensionNs="com.intellij">
-            <registryKey key="kotlin.use.new.j2k"
-                       description="Use new Java to Kotlin Converter (experimental)"
-                       defaultValue="true"
-                       restartRequired="false"/>
             <registryKey key="kotlin.android.import.mpp.all.transitive"
                      description="Add all transitive dependencies on MPP modules when Android project is imported"
                      defaultValue="true"

idea/resources/META-INF/plugin-common.xml

@@ -487,7 +487,7 @@
                          parentId="project.propCompiler"/>
 
     <applicationConfigurable groupId="language" displayName="Kotlin" id="preferences.language.Kotlin"
-                             instance="org.jetbrains.kotlin.idea.configuration.KotlinUpdatesSettingsConfigurable"/>
+                             instance="org.jetbrains.kotlin.idea.configuration.KotlinLanguageConfiguration"/>
 
     <projectConfigurable groupId="language" displayName="Kotlin Scripting" id="preferences.language.Kotlin.scripting"
                          instance="org.jetbrains.kotlin.idea.script.configuration.KotlinScriptingSettingsConfigurable"

idea/src/org/jetbrains/kotlin/idea/actions/ConfigurePluginUpdatesAction.kt

@@ -20,12 +20,12 @@ import com.intellij.ide.actions.ShowSettingsUtilImpl
 import com.intellij.openapi.actionSystem.AnActionEvent
 import com.intellij.openapi.actionSystem.CommonDataKeys
 import com.intellij.openapi.project.DumbAwareAction
-import org.jetbrains.kotlin.idea.configuration.KotlinUpdatesSettingsConfigurable
+import org.jetbrains.kotlin.idea.configuration.KotlinLanguageConfiguration
 
 class ConfigurePluginUpdatesAction : DumbAwareAction() {
     override fun actionPerformed(e: AnActionEvent) {
         val project = e.getData(CommonDataKeys.PROJECT)
-        ShowSettingsUtilImpl.showSettingsDialog(project, KotlinUpdatesSettingsConfigurable.ID, "")
+        ShowSettingsUtilImpl.showSettingsDialog(project, KotlinLanguageConfiguration.ID, "")
     }
 
     companion object {

idea/src/org/jetbrains/kotlin/idea/configuration/KotlinLanguageConfiguration.kt

@@ -12,10 +12,11 @@ import com.intellij.openapi.updateSettings.impl.UpdateSettings
 import org.jetbrains.kotlin.idea.KotlinPluginUpdater
 import org.jetbrains.kotlin.idea.KotlinPluginUtil
 import org.jetbrains.kotlin.idea.PluginUpdateStatus
-import org.jetbrains.kotlin.idea.configuration.ui.ConfigurePluginUpdatesForm
+import org.jetbrains.kotlin.idea.configuration.ui.KotlinLanguageConfigurationForm
+import org.jetbrains.kotlin.j2k.J2kConverterExtension
 import javax.swing.JComponent
 
-class KotlinUpdatesSettingsConfigurable : SearchableConfigurable, Configurable.NoScroll {
+class KotlinLanguageConfiguration : SearchableConfigurable, Configurable.NoScroll {
     companion object {
         const val ID = "preferences.language.Kotlin"
 
@@ -48,7 +49,7 @@ class KotlinUpdatesSettingsConfigurable : SearchableConfigurable, Configurable.N
         }
     }
 
-    private val form = ConfigurePluginUpdatesForm()
+    private val form = KotlinLanguageConfigurationForm()
     private var update: PluginUpdateStatus.Update? = null
 
     private var savedChannel = -1
@@ -62,10 +63,13 @@ class KotlinUpdatesSettingsConfigurable : SearchableConfigurable, Configurable.N
 
     override fun getDisplayName(): String = "Kotlin"
 
-    override fun isModified() = false
+    override fun isModified() =
+        form.useNewJ2kCheckBox.isSelected != J2kConverterExtension.isNewJ2k
 
     override fun apply() {
         // Selected channel is now saved automatically
+
+        J2kConverterExtension.isNewJ2k = form.useNewJ2kCheckBox.isSelected
     }
 
     private fun setInstalledVersion(installedVersion: String?, installingStatus: String?) {
@@ -74,6 +78,7 @@ class KotlinUpdatesSettingsConfigurable : SearchableConfigurable, Configurable.N
     }
 
     override fun createComponent(): JComponent? {
+        form.useNewJ2kCheckBox.isSelected = J2kConverterExtension.isNewJ2k
         form.updateCheckProgressIcon.suspend()
         form.updateCheckProgressIcon.setPaintPassiveIcon(false)
 

idea/src/org/jetbrains/kotlin/idea/configuration/ui/KotlinLanguageConfigurationForm.form

@@ -1,6 +1,6 @@
 <?xml version="1.0" encoding="UTF-8"?>
-<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="org.jetbrains.kotlin.idea.configuration.ui.ConfigurePluginUpdatesForm">
+<form xmlns="http://www.intellij.com/uidesigner/form/" version="1" bind-to-class="org.jetbrains.kotlin.idea.configuration.ui.KotlinLanguageConfigurationForm">
-  <grid id="27dc6" binding="mainPanel" layout-manager="GridLayoutManager" row-count="7" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="5">
+  <grid id="27dc6" binding="mainPanel" layout-manager="GridLayoutManager" row-count="8" column-count="2" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="5">
     <margin top="0" left="0" bottom="0" right="0"/>
     <constraints>
       <xy x="20" y="20" width="500" height="400"/>
@@ -8,14 +8,9 @@
     <properties/>
     <border type="none"/>
     <children>
-      <vspacer id="42b13">
-        <constraints>
-          <grid row="6" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
-        </constraints>
-      </vspacer>
       <grid id="2505b" layout-manager="FlowLayout" hgap="5" vgap="0" flow-align="0">
         <constraints>
-          <grid row="3" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+          <grid row="3" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties/>
         <border type="none"/>
@@ -30,7 +25,7 @@
       </grid>
       <grid id="b171" layout-manager="FlowLayout" hgap="5" vgap="0" flow-align="0">
         <constraints>
-          <grid row="4" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
+          <grid row="4" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
             <preferred-size width="97" height="21"/>
           </grid>
         </constraints>
@@ -63,7 +58,7 @@
       </grid>
       <grid id="6a5b2" layout-manager="FlowLayout" hgap="5" vgap="0" flow-align="0">
         <constraints>
-          <grid row="5" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+          <grid row="5" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties/>
         <border type="none"/>
@@ -79,7 +74,7 @@
       </grid>
       <grid id="cf404" layout-manager="FlowLayout" hgap="5" vgap="0" flow-align="0">
         <constraints>
-          <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
+          <grid row="0" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false"/>
         </constraints>
         <properties/>
         <border type="none"/>
@@ -109,7 +104,7 @@
       </grid>
       <grid id="e3af8" binding="pluginVersionPanel" layout-manager="FlowLayout" hgap="5" vgap="0" flow-align="0">
         <constraints>
-          <grid row="1" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
+          <grid row="1" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
             <preferred-size width="335" height="24"/>
           </grid>
         </constraints>
@@ -133,7 +128,7 @@
       </grid>
       <grid id="4a454" binding="bundledCompilerVersionPanel" layout-manager="FlowLayout" hgap="5" vgap="0" flow-align="0">
         <constraints>
-          <grid row="2" column="0" row-span="1" col-span="1" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
+          <grid row="2" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="0" fill="3" indent="0" use-parent-layout="false">
             <preferred-size width="335" height="24"/>
           </grid>
         </constraints>
@@ -155,6 +150,32 @@
           </component>
         </children>
       </grid>
+      <grid id="15a75" layout-manager="GridLayoutManager" row-count="1" column-count="1" same-size-horizontally="false" same-size-vertically="false" hgap="-1" vgap="-1">
+        <margin top="0" left="0" bottom="0" right="0"/>
+        <constraints>
+          <grid row="6" column="0" row-span="1" col-span="2" vsize-policy="3" hsize-policy="3" anchor="1" fill="1" indent="0" use-parent-layout="false"/>
+        </constraints>
+        <properties/>
+        <clientProperties>
+          <BorderFactoryClass class="java.lang.String" value="com.intellij.ui.IdeBorderFactory$PlainSmallWithoutIndent"/>
+        </clientProperties>
+        <border type="etched" title="Experimental Features"/>
+        <children>
+          <component id="d2573" class="javax.swing.JCheckBox" binding="useNewJ2kCheckBox" default-binding="true">
+            <constraints>
+              <grid row="0" column="0" row-span="1" col-span="1" vsize-policy="0" hsize-policy="3" anchor="8" fill="0" indent="1" use-parent-layout="false"/>
+            </constraints>
+            <properties>
+              <text value="Use New J2K"/>
+            </properties>
+          </component>
+        </children>
+      </grid>
+      <vspacer id="73440">
+        <constraints>
+          <grid row="7" column="0" row-span="1" col-span="1" vsize-policy="6" hsize-policy="1" anchor="0" fill="2" indent="0" use-parent-layout="false"/>
+        </constraints>
+      </vspacer>
     </children>
   </grid>
 </form>

idea/src/org/jetbrains/kotlin/idea/configuration/ui/KotlinLanguageConfigurationForm.java

@@ -14,7 +14,7 @@ import org.jetbrains.kotlin.idea.util.VersioningKt;
 import javax.swing.*;
 import java.util.List;
 
-public class ConfigurePluginUpdatesForm {
+public class KotlinLanguageConfigurationForm {
     public JComboBox<String> channelCombo;
     public JButton reCheckButton;
     public JPanel mainPanel;
@@ -27,8 +27,9 @@ public class ConfigurePluginUpdatesForm {
     private JTextPane currentVersion;
     private JPanel bundledCompilerVersionPanel;
     private JTextPane compilerVersion;
+    public JCheckBox useNewJ2kCheckBox;
 
-    public ConfigurePluginUpdatesForm() {
+    public KotlinLanguageConfigurationForm() {
         showVerifierDisabledStatus();
 
         String pluginVersion = KotlinPluginUtil.getPluginVersion();

idea/tests/org/jetbrains/kotlin/idea/conversion/copy/AbstractJ2kCopyPasteTest.kt

@@ -7,12 +7,13 @@ package org.jetbrains.kotlin.idea.conversion.copy
 
 import com.intellij.openapi.util.registry.Registry
 import org.jetbrains.kotlin.idea.AbstractCopyPasteTest
+import org.jetbrains.kotlin.j2k.J2kConverterExtension
 
 abstract class AbstractJ2kCopyPasteTest : AbstractCopyPasteTest() {
     protected open fun isNewJ2K(): Boolean = false
 
     override fun setUp() {
         super.setUp()
-        Registry.get("kotlin.use.new.j2k").setValue(isNewJ2K())
+        J2kConverterExtension.isNewJ2k = isNewJ2K()
     }
 }

j2k/src/org/jetbrains/kotlin/j2k/J2KConverterExtension.kt

@@ -1,11 +1,11 @@
 package org.jetbrains.kotlin.j2k
 
+import com.intellij.ide.util.PropertiesComponent
 import com.intellij.openapi.extensions.AbstractExtensionPointBean
 import com.intellij.openapi.extensions.ExtensionPointName
 import com.intellij.openapi.module.Module
 import com.intellij.openapi.progress.ProgressIndicator
 import com.intellij.openapi.project.Project
-import com.intellij.openapi.util.registry.Registry
 import com.intellij.psi.PsiJavaFile
 
 abstract class J2kConverterExtension : AbstractExtensionPointBean() {
@@ -30,8 +30,14 @@ abstract class J2kConverterExtension : AbstractExtensionPointBean() {
     ): WithProgressProcessor
 
     companion object {
-        val isNewJ2k
+        private const val newJ2kByDefault = true
-            get() = Registry.`is`("kotlin.use.new.j2k", true)
+        private const val optionName = "kotlin.use.new.j2k"
+
+        var isNewJ2k
+            get() = PropertiesComponent.getInstance().getBoolean(optionName, newJ2kByDefault)
+            set(value) {
+                PropertiesComponent.getInstance().setValue(optionName, value, newJ2kByDefault)
+            }
 
         val EP_NAME = ExtensionPointName.create<J2kConverterExtension>("org.jetbrains.kotlin.j2kConverterExtension")