1 files changed, 69 insertions, 0 deletions
diff --git a/plugins/properties/src/com/intellij/lang/properties/editor/ResourceBundleUtil.java b/plugins/properties/src/com/intellij/lang/properties/editor/ResourceBundleUtil.java
new file mode 100644
index 000000000000..e4a35e7e677c
--- /dev/null
+++ b/plugins/properties/src/com/intellij/lang/properties/editor/ResourceBundleUtil.java
@@ -0,0 +1,69 @@
+/*
+ * Copyright 2000-2014 JetBrains s.r.o.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+package com.intellij.lang.properties.editor;
+
+import com.intellij.lang.properties.IProperty;
+import com.intellij.lang.properties.ResourceBundle;
+import com.intellij.lang.properties.psi.PropertiesFile;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.actionSystem.DataContext;
+import com.intellij.openapi.project.Project;
+import com.intellij.openapi.vfs.VirtualFile;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiFile;
+import com.intellij.psi.PsiManager;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author Denis Zhdanov
+ * @since 10/5/11 2:35 PM
+ */
+public class ResourceBundleUtil {
+
+  private ResourceBundleUtil() {
+  }
+
+  /**
+   * Tries to derive {@link com.intellij.lang.properties.ResourceBundle resource bundle} related to the given context.
+   *
+   * @param dataContext   target context
+   * @return              {@link com.intellij.lang.properties.ResourceBundle resource bundle} related to the given context if any;
+   *                      <code>null</code> otherwise
+   */
+  @Nullable
+  public static ResourceBundle getResourceBundleFromDataContext(@NotNull DataContext dataContext) {
+    PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext);
+    if (element instanceof IProperty) return null; //rename property
+    final ResourceBundle[] bundles = ResourceBundle.ARRAY_DATA_KEY.getData(dataContext);
+    if (bundles != null && bundles.length == 1) return bundles[0];
+    VirtualFile virtualFile = CommonDataKeys.VIRTUAL_FILE.getData(dataContext);
+    if (virtualFile == null) {
+      return null;
+    }
+    final Project project = CommonDataKeys.PROJECT.getData(dataContext);
+    if (virtualFile instanceof ResourceBundleAsVirtualFile && project != null) {
+      return ((ResourceBundleAsVirtualFile)virtualFile).getResourceBundle(project);
+    }
+    if (project != null) {
+      final PsiFile psiFile = PsiManager.getInstance(project).findFile(virtualFile);
+      if (psiFile instanceof PropertiesFile) {
+        return ((PropertiesFile)psiFile).getResourceBundle();
+      }
+    }
+    return null;
+  }
+}