From eea29c341505b2befd8b1f511bf38e735d194108 Mon Sep 17 00:00:00 2001
From: "Vassiliy.Kudryashov" <Vassiliy.Kudryashov@jetbrains.com>
Date: Fri, 20 Oct 2017 12:57:56 +0300
Subject: [PATCH] IDEA-179753 "Undo" action can be invoked from "Undo"
 confirmation dialog

---
 .../com/intellij/ide/actions/UndoRedoAction.java    | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/platform/platform-impl/src/com/intellij/ide/actions/UndoRedoAction.java b/platform/platform-impl/src/com/intellij/ide/actions/UndoRedoAction.java
index e10d66bf232b..b50d6857ccf2 100644
--- a/platform/platform-impl/src/com/intellij/ide/actions/UndoRedoAction.java
+++ b/platform/platform-impl/src/com/intellij/ide/actions/UndoRedoAction.java
@@ -35,6 +35,8 @@ import javax.swing.*;
 import java.awt.*;
 
 public abstract class UndoRedoAction extends DumbAwareAction {
+  private static boolean ourInProgress = false;//We should disable both undo and redo while Undo/Redo confirmation dialog is shown
+  
   public UndoRedoAction() {
     setEnabledInModalContext(true);
   }
@@ -43,11 +45,20 @@ public abstract class UndoRedoAction extends DumbAwareAction {
     DataContext dataContext = e.getDataContext();
     FileEditor editor = PlatformDataKeys.FILE_EDITOR.getData(dataContext);
     UndoManager undoManager = getUndoManager(editor, dataContext);
-    perform(editor, undoManager);
+    try {
+      ourInProgress = true;
+      perform(editor, undoManager);
+    } finally {
+      ourInProgress = false;
+    }
   }
 
   public void update(AnActionEvent event) {
     Presentation presentation = event.getPresentation();
+    if (ourInProgress) {
+      presentation.setEnabled(false);
+      return;
+    }
     DataContext dataContext = event.getDataContext();
     FileEditor editor = PlatformDataKeys.FILE_EDITOR.getData(dataContext);
     UndoManager undoManager = getUndoManager(editor, dataContext);