From f8426a38891044caa5d65ff56241e19eeb5ccde2 Mon Sep 17 00:00:00 2001
From: Konstantin Nisht <konstantin.nisht@jetbrains.com>
Date: Tue, 1 Jul 2025 10:36:36 +0200
Subject: [PATCH] [threading] IJPL-184084: Temporarily add read access to paint
 method of markdown components

GitOrigin-RevId: e0c0ec315b6464891b43f7403b6d29af519fd9ec
---
 .../presentation/HorizontalBarPresentation.kt | 17 ++++++++++-------
 .../presentation/VerticalBarPresentation.kt   | 19 +++++++++++--------
 2 files changed, 21 insertions(+), 15 deletions(-)

diff --git a/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/HorizontalBarPresentation.kt b/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/HorizontalBarPresentation.kt
index 28f8ea0aa93a..5817e0afa1a3 100644
--- a/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/HorizontalBarPresentation.kt
+++ b/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/HorizontalBarPresentation.kt
@@ -14,6 +14,7 @@ import com.intellij.openapi.actionSystem.DataSink
 import com.intellij.openapi.actionSystem.impl.ToolbarUtils
 import com.intellij.openapi.application.ModalityState
 import com.intellij.openapi.application.invokeLater
+import com.intellij.openapi.application.runReadAction
 import com.intellij.openapi.command.executeCommand
 import com.intellij.openapi.editor.Document
 import com.intellij.openapi.editor.Editor
@@ -78,13 +79,15 @@ internal class HorizontalBarPresentation(private val editor: Editor, private val
     get() = boundsState.height
 
   override fun paint(graphics: Graphics2D, attributes: TextAttributes) {
-    if (isInvalid) {
-      return
-    }
-    graphics.useCopy { local ->
-      GraphicsUtil.setupAntialiasing(local)
-      GraphicsUtil.setupRoundedBorderAntialiasing(local)
-      paintBars(local)
+    runReadAction {
+      if (isInvalid) {
+        return@runReadAction
+      }
+      graphics.useCopy { local ->
+        GraphicsUtil.setupAntialiasing(local)
+        GraphicsUtil.setupRoundedBorderAntialiasing(local)
+        paintBars(local)
+      }
     }
   }
 
diff --git a/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/VerticalBarPresentation.kt b/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/VerticalBarPresentation.kt
index d31ca3721e1c..a449cab91628 100644
--- a/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/VerticalBarPresentation.kt
+++ b/plugins/markdown/core/src/org/intellij/plugins/markdown/editor/tables/ui/presentation/VerticalBarPresentation.kt
@@ -13,6 +13,7 @@ import com.intellij.openapi.actionSystem.DataSink
 import com.intellij.openapi.actionSystem.impl.ToolbarUtils
 import com.intellij.openapi.application.ModalityState
 import com.intellij.openapi.application.invokeLater
+import com.intellij.openapi.application.runReadAction
 import com.intellij.openapi.command.executeCommand
 import com.intellij.openapi.editor.Editor
 import com.intellij.openapi.editor.markup.TextAttributes
@@ -108,15 +109,17 @@ internal class VerticalBarPresentation(
     if (editor.isDisposed || boundsState == initialState) {
       return
     }
-    SlowOperations.knownIssue("IJPL-162800").use {
-      if (!row.isValid) {
-        return
+    runReadAction {
+      SlowOperations.knownIssue("IJPL-162800").use {
+        if (!row.isValid) {
+          return@runReadAction
+        }
+      }
+      graphics.useCopy { local ->
+        GraphicsUtil.setupAntialiasing(local)
+        GraphicsUtil.setupRoundedBorderAntialiasing(local)
+        paintRow(local, rowLocation)
       }
-    }
-    graphics.useCopy { local ->
-      GraphicsUtil.setupAntialiasing(local)
-      GraphicsUtil.setupRoundedBorderAntialiasing(local)
-      paintRow(local, rowLocation)
     }
   }