From 2cc69e5324bb7c297d79bd2c29833fdab8ba3318 Mon Sep 17 00:00:00 2001
From: Dmitry Semeniouta <Dmitry.Semeniouta@jetbrains.com>
Date: Mon, 20 Jan 2014 17:47:53 +0400
Subject: [PATCH] AC/C++: OC-9003 Trailing whitespaces are stripped in PCH
 during typing +review CR-IC

---
 .../openapi/fileEditor/impl/text/TextEditorComponent.java    | 5 ++++-
 1 file changed, 4 insertions(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorComponent.java b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorComponent.java
index e756be0e440b..46a55ea80a93 100644
--- a/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorComponent.java
+++ b/platform/platform-impl/src/com/intellij/openapi/fileEditor/impl/text/TextEditorComponent.java
@@ -41,6 +41,7 @@ import com.intellij.openapi.fileTypes.FileTypeEvent;
 import com.intellij.openapi.fileTypes.FileTypeListener;
 import com.intellij.openapi.fileTypes.FileTypeManager;
 import com.intellij.openapi.project.Project;
+import com.intellij.openapi.util.Comparing;
 import com.intellij.openapi.vfs.VirtualFile;
 import com.intellij.openapi.vfs.VirtualFileAdapter;
 import com.intellij.openapi.vfs.VirtualFileEvent;
@@ -347,7 +348,9 @@ class TextEditorComponent extends JBLoadingPanel implements DataProvider {
         // File can be invalidated after file changes name (extension also
         // can changes). The editor should be removed if it's invalid.
         updateValidProperty();
-        updateHighlighters();
+        if (Comparing.equal(e.getFile(), myFile) && !Comparing.equal(e.getOldValue(), e.getNewValue())) {
+          updateHighlighters();
+        }
       }
     }