helper method isEditorActivity

platform/platform-api/src/com/intellij/ide/util/treeView/AbstractTreeBuilder.java

@@ -344,6 +344,10 @@ public class AbstractTreeBuilder implements Disposable {
     }
   }
 
+  protected ProgressIndicator getProgressIndicator() {
+    return getUi().getProgressIndicator();
+  }
+
   protected void updateAfterLoadedInBackground(Runnable runnable) {
     if (myUi.isPassthroughMode()) {
       runnable.run();

platform/platform-api/src/com/intellij/ide/util/treeView/AbstractTreeUi.java

@@ -1784,6 +1784,10 @@ public class AbstractTreeUi {
     return result;
   }
 
+  public ProgressIndicator getProgressIndicator() {
+    return myProgress;
+  }
+
   static class ElementNode extends DefaultMutableTreeNode {
 
     Set<Object> myElements = new HashSet<Object>();

platform/platform-api/src/com/intellij/openapi/application/UserActivity.java

@@ -17,6 +17,9 @@ package com.intellij.openapi.application;
 
 import com.intellij.util.messages.Topic;
 
+import javax.swing.*;
+import java.awt.*;
+import java.awt.event.InputEvent;
 import java.awt.event.KeyEvent;
 import java.awt.event.MouseEvent;
 
@@ -41,4 +44,22 @@ public interface UserActivity {
     }
   }
 
+  class Util {
+
+    public static boolean isEditorActivity(InputEvent e) {
+      Component c = null;
+      if (e instanceof KeyEvent) {
+        c = KeyboardFocusManager.getCurrentKeyboardFocusManager().getFocusOwner();
+      } else if (e instanceof MouseEvent) {
+        c = SwingUtilities.getDeepestComponentAt(e.getComponent(), ((MouseEvent)e).getX(), ((MouseEvent)e).getY());
+      }
+
+      if (c instanceof JComponent) {
+        return Boolean.TRUE.equals(((JComponent)c).getClientProperty("isEditor"));
+      }
+
+      return false;
+    }
+  }
+
 }

platform/platform-impl/src/com/intellij/openapi/editor/impl/EditorComponentImpl.java

@@ -44,6 +44,7 @@ public class EditorComponentImpl extends JComponent implements Scrollable, DataP
     enableInputMethods(true);
     setFocusCycleRoot(true);
     setOpaque(true);
+    putClientProperty("isEditor", Boolean.TRUE);
   }
 
   public EditorImpl getEditor() {