extension point for resolving context variables in template files

python/openapi/src/com/jetbrains/python/templateLanguages/TemplateContextProvider.java

@@ -0,0 +1,40 @@
+/*
+ * Copyright 2000-2012 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.jetbrains.python.templateLanguages;
+
+import com.intellij.codeInsight.lookup.LookupElement;
+import com.intellij.openapi.extensions.ExtensionPointName;
+import com.intellij.psi.PsiFile;
+
+import java.util.Collection;
+
+/**
+ * Returns the list of variables which are available in the context for a template.
+ *
+ * @author yole
+ */
+public interface TemplateContextProvider {
+  ExtensionPointName<TemplateContextProvider> EP_NAME = ExtensionPointName.create("Pythonid.templateContextProvider");
+
+  /**
+   * Returns the context for a template. The lookup string of each returned LookupElement in the returned list is the visible
+   * name of the variable; the object is the PsiElement declaring the variable.
+   *
+   * @param template the template file
+   * @return the list of variables
+   */
+  Collection<LookupElement> getTemplateContext(PsiFile template);
+}