From a30c0b8d15beba3e67be979d823223d031b86a79 Mon Sep 17 00:00:00 2001
From: "Rustam.Vishnyakov" <rustam.vishnyakov@gmail.com>
Date: Tue, 7 Dec 2010 15:46:24 +0300
Subject: [PATCH] Add downloaded JS library to current file's scope

---
 .../ScriptingLibraryMappings.java             | 26 +++++++++++++++++++
 1 file changed, 26 insertions(+)

diff --git a/platform/lang-impl/src/com/intellij/ide/scriptingContext/ScriptingLibraryMappings.java b/platform/lang-impl/src/com/intellij/ide/scriptingContext/ScriptingLibraryMappings.java
index b7d78239a13c..8b1a5966c91d 100644
--- a/platform/lang-impl/src/com/intellij/ide/scriptingContext/ScriptingLibraryMappings.java
+++ b/platform/lang-impl/src/com/intellij/ide/scriptingContext/ScriptingLibraryMappings.java
@@ -51,6 +51,32 @@ public class ScriptingLibraryMappings extends LanguagePerFileMappings<ScriptingL
     myLibraryManager.reset();
   }
 
+  /**
+   * Creates an association between a virtual file and a library specified by name.
+   * @param file    The file to associate the library with.
+   * @param libName The library name.
+   */
+  public void associate(VirtualFile file, String libName) {
+    ScriptingLibraryTable.LibraryModel libraryModel = myLibraryManager.getLibraryByName(libName);
+    if (libraryModel == null) return;
+    ScriptingLibraryTable.LibraryModel container = getImmediateMapping(file);
+    if (container == null || !(container instanceof CompoundLibrary)) {
+      container = new CompoundLibrary();
+    }
+    if (!((CompoundLibrary)container).containsLibrary(libName)) {
+      ((CompoundLibrary)container).toggleLibrary(libraryModel);
+      setMapping(file, container);
+    }
+  }
+  
+  public boolean isAssociatedWith(VirtualFile file, String libName) {
+    ScriptingLibraryTable.LibraryModel libraryModel = myLibraryManager.getLibraryByName(libName);
+    if (libraryModel == null) return false;
+    ScriptingLibraryTable.LibraryModel container = getImmediateMapping(file);
+    if (container == null) return false;
+    return ((CompoundLibrary)container).containsLibrary(libName);
+  }
+
   @NotNull
   @Override
   protected String getValueAttribute() {