1 files changed, 23 insertions, 0 deletions
diff --git a/python/edu/learn-python/src/com/jetbrains/python/edu/StudyHighlightErrorFilter.java b/python/edu/learn-python/src/com/jetbrains/python/edu/StudyHighlightErrorFilter.java
new file mode 100644
index 000000000000..1377128ed417
--- /dev/null
+++ b/python/edu/learn-python/src/com/jetbrains/python/edu/StudyHighlightErrorFilter.java
@@ -0,0 +1,23 @@
+package com.jetbrains.python.edu;
+
+import com.intellij.codeInsight.highlighting.HighlightErrorFilter;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.psi.PsiErrorElement;
+import org.jetbrains.annotations.NotNull;
+import com.jetbrains.python.edu.course.TaskFile;
+
+/**
+ * author: liana
+ * data: 7/23/14.
+ */
+public class StudyHighlightErrorFilter extends HighlightErrorFilter {
+  @Override
+  public boolean shouldHighlightErrorElement(@NotNull final PsiErrorElement element) {
+    VirtualFile file = element.getContainingFile().getVirtualFile();
+    Project project = element.getProject();
+    StudyTaskManager taskManager = StudyTaskManager.getInstance(project);
+    TaskFile taskFile = taskManager.getTaskFile(file);
+    return taskFile == null;
+  }
+}