GTW-7827 3Set Korean inputs are garbled

GitOrigin-RevId: 487c051dc2f312bad8e127f1eb45cd52a2dbc74a

platform/bootstrap/src/com/intellij/idea/Main.kt

@@ -23,7 +23,7 @@ import com.intellij.platform.ide.bootstrap.startApplication
 import com.intellij.platform.impl.toolkit.IdeFontManager
 import com.intellij.platform.impl.toolkit.IdeGraphicsEnvironment
 import com.intellij.platform.impl.toolkit.IdeToolkit
-import com.intellij.util.ui.JBHtmlEditorKit
+import com.intellij.util.ui.UIUtil
 import com.jetbrains.JBR
 import kotlinx.coroutines.*
 import org.jetbrains.annotations.ApiStatus.Internal
@@ -217,7 +217,7 @@ private fun initLux() {
   @Suppress("SpellCheckingInspection")
   System.setProperty("sun.font.fontmanager", IdeFontManager::class.java.canonicalName)
 
-  JBHtmlEditorKit.DISABLE_TEXT_LAYOUT = true
+  UIUtil.DISABLE_LAYOUT_IN_TEXT_COMPONENTS = true
 }
 
 private fun addBootstrapTiming(name: String, startupTimings: MutableList<Any>) {

platform/platform-api/api-dump-unreviewed.txt

@@ -8479,6 +8479,7 @@ c:com.intellij.ui.components.JBTextField
 - <init>(I):V
 - <init>(java.lang.String):V
 - <init>(java.lang.String,I):V
+- p:createDefaultModel():javax.swing.text.Document
 - getAccessibleContext():javax.accessibility.AccessibleContext
 - p:getComponentGraphics(java.awt.Graphics):java.awt.Graphics
 - getEmptyText():com.intellij.util.ui.StatusText

platform/platform-api/src/com/intellij/ui/components/JBTextField.java

@@ -12,6 +12,7 @@ import org.jetbrains.annotations.NotNull;
 import javax.accessibility.AccessibleContext;
 import javax.swing.*;
 import javax.swing.plaf.TextUI;
+import javax.swing.text.Document;
 import java.awt.*;
 import java.awt.event.MouseEvent;
 import java.util.Objects;
@@ -120,6 +121,13 @@ public class JBTextField extends JTextField implements ComponentWithEmptyText, T
     return accessibleContext;
   }
 
+  @Override
+  protected Document createDefaultModel() {
+    Document model = super.createDefaultModel();
+    UIUtil.disableTextLayoutIfNeeded(model);
+    return model;
+  }
+
   private class AccessibleJBTextField extends AccessibleJTextField {
     @Override
     public String getAccessibleDescription() {

platform/util/ui/src/com/intellij/util/ui/JBHtmlEditorKit.java

@@ -18,7 +18,6 @@ import java.awt.*;
 import java.awt.event.MouseEvent;
 import java.beans.PropertyChangeEvent;
 import java.beans.PropertyChangeListener;
-import java.util.Hashtable;
 import java.util.Iterator;
 import java.util.List;
 import java.util.Objects;
@@ -28,10 +27,6 @@ import java.util.stream.StreamSupport;
 public class JBHtmlEditorKit extends HTMLEditorKit {
   private static final Logger LOG = Logger.getInstance(JBHtmlEditorKit.class);
 
-  @SuppressWarnings("StaticNonFinalField")
-  @ApiStatus.Internal
-  public static boolean DISABLE_TEXT_LAYOUT = false;
-
   private final @NotNull ViewFactory myViewFactory;
   private final @NotNull StyleSheet myStyle;
 
@@ -217,14 +212,7 @@ public class JBHtmlEditorKit extends HTMLEditorKit {
   private final class OurDocument extends HTMLDocument {
     private OurDocument(StyleSheet styles) {
       super(styles);
-      if (DISABLE_TEXT_LAYOUT) {
-        setDocumentProperties(new Hashtable<>(2) {
-          @Override
-          public synchronized Object get(Object key) {
-            return "i18n".equals(key) ? Boolean.FALSE : super.get(key);
-          }
-        });
-      }
+      UIUtil.disableTextLayoutIfNeeded(this);
     }
 
     @Override

platform/util/ui/src/com/intellij/util/ui/UIUtil.java

@@ -3346,4 +3346,24 @@ public final class UIUtil {
     GraphicsDevice gd = GraphicsEnvironment.getLocalGraphicsEnvironment().getDefaultScreenDevice();
     return gd.isFullScreenSupported();
   }
+
+  @SuppressWarnings("StaticNonFinalField")
+  @ApiStatus.Internal
+  public static boolean DISABLE_LAYOUT_IN_TEXT_COMPONENTS = false;
+
+  /**
+   * Disables performing text layout for 'complex' text in the document, if configured globally.
+   * Should be called before the document is used for anything, i.e., right after construction.
+   */
+  @ApiStatus.Internal
+  public static void disableTextLayoutIfNeeded(@NotNull Document document) {
+    if (DISABLE_LAYOUT_IN_TEXT_COMPONENTS && document instanceof AbstractDocument ad) {
+      ad.setDocumentProperties(new Hashtable<>(2) {
+        @Override
+        public synchronized Object get(Object key) {
+          return "i18n".equals(key) ? Boolean.FALSE : super.get(key);
+        }
+      });
+    }
+  }
 }