Notify SettingsEditor on current settings change if the change is not directly coming from UI [IDEA-CR-19864]

platform/lang-impl/src/com/intellij/application/options/codeStyle/CodeStyleMainPanel.java

@@ -18,11 +18,14 @@ package com.intellij.application.options.codeStyle;
 
 import com.intellij.application.options.CodeStyleAbstractPanel;
 import com.intellij.application.options.TabbedLanguageCodeStylePanel;
+import com.intellij.ide.DataManager;
 import com.intellij.ide.util.PropertiesComponent;
 import com.intellij.lang.Language;
+import com.intellij.openapi.actionSystem.DataContext;
 import com.intellij.openapi.application.ApplicationBundle;
 import com.intellij.openapi.application.ApplicationManager;
 import com.intellij.openapi.options.ConfigurationException;
+import com.intellij.openapi.options.ex.Settings;
 import com.intellij.psi.codeStyle.CodeStyleScheme;
 import com.intellij.psi.codeStyle.CodeStyleSchemes;
 import com.intellij.ui.components.labels.SwingActionLink;
@@ -103,7 +106,12 @@ public class CodeStyleMainPanel extends JPanel implements TabbedLanguageCodeStyl
 
       @Override
       public void afterCurrentSettingsChanged() {
-         mySchemesPanel.updateOnCurrentSettingsChange();
+        mySchemesPanel.updateOnCurrentSettingsChange();
+        DataContext context = DataManager.getInstance().getDataContext(mySettingsPanel);
+        Settings settings = Settings.KEY.getData(context);
+        if (settings != null) {
+          settings.revalidate();
+        }
       }
 
       @Override

platform/platform-impl/src/com/intellij/openapi/options/ex/Settings.java

@@ -69,4 +69,9 @@ public abstract class Settings {
   private static Configurable choose(Configurable configurable, Configurable variant) {
     return variant != null ? variant : configurable;
   }
+
+  /**
+   * Used to handle programmatic settings changes when no UI events are sent.
+   */
+  public void revalidate() {}
 }

platform/platform-impl/src/com/intellij/openapi/options/newEditor/ConfigurableEditor.java

@@ -187,7 +187,7 @@ class ConfigurableEditor extends AbstractEditor implements AnActionListener, AWT
     }
   }
 
-  private void requestUpdate() {
+  void requestUpdate() {
     final Configurable configurable = myConfigurable;
     myQueue.queue(new Update(this) {
       @Override

platform/platform-impl/src/com/intellij/openapi/options/newEditor/SettingsEditor.java

@@ -76,6 +76,11 @@ final class SettingsEditor extends AbstractEditor implements DataProvider {
         myFilter.update(null, false, true);
         return myTreeView.select(configurable);
       }
+
+      @Override
+      public void revalidate() {
+        myEditor.requestUpdate();
+      }
     };
     mySearch = new SettingsSearch() {
       @Override