1 files changed, 76 insertions, 0 deletions
diff --git a/python/src/com/jetbrains/python/hierarchy/call/PyCallHierarchyProvider.java b/python/src/com/jetbrains/python/hierarchy/call/PyCallHierarchyProvider.java
new file mode 100644
index 000000000000..67c0d6ddfa0b
--- /dev/null
+++ b/python/src/com/jetbrains/python/hierarchy/call/PyCallHierarchyProvider.java
@@ -0,0 +1,76 @@
+/*
+ * 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.jetbrains.python.hierarchy.call;
+
+import com.intellij.codeInsight.TargetElementUtilBase;
+import com.intellij.ide.hierarchy.CallHierarchyBrowserBase;
+import com.intellij.ide.hierarchy.HierarchyBrowser;
+import com.intellij.ide.hierarchy.HierarchyProvider;
+import com.intellij.openapi.actionSystem.CommonDataKeys;
+import com.intellij.openapi.actionSystem.DataContext;
+import com.intellij.openapi.editor.Editor;
+import com.intellij.openapi.project.Project;
+import com.intellij.psi.PsiDocumentManager;
+import com.intellij.psi.PsiElement;
+import com.intellij.psi.PsiFile;
+import com.intellij.psi.util.PsiTreeUtil;
+import com.jetbrains.python.psi.PyClass;
+import com.jetbrains.python.psi.PyFile;
+import com.jetbrains.python.psi.PyFunction;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+/**
+ * @author novokrest
+ */
+public class PyCallHierarchyProvider implements HierarchyProvider {
+  @Nullable
+  @Override
+  public PsiElement getTarget(@NotNull DataContext dataContext) {
+    Project project = CommonDataKeys.PROJECT.getData(dataContext);
+    if (project == null) return null;
+
+    PsiElement element = CommonDataKeys.PSI_ELEMENT.getData(dataContext);
+    if (element == null) {
+      Editor editor = CommonDataKeys.EDITOR.getData(dataContext);
+      if (editor != null) {
+        PsiFile file = PsiDocumentManager.getInstance(project).getPsiFile(editor.getDocument());
+        if (file == null) return null;
+
+        element = TargetElementUtilBase.findTargetElement(editor, TargetElementUtilBase.ELEMENT_NAME_ACCEPTED |
+                                                                  TargetElementUtilBase.REFERENCED_ELEMENT_ACCEPTED |
+                                                                  TargetElementUtilBase.LOOKUP_ITEM_ACCEPTED);
+        if (element instanceof PyFunction || element instanceof PyClass || element instanceof PyFile) {
+          return element;
+        }
+
+        element = file.findElementAt(editor.getCaretModel().getOffset());
+      }
+    }
+    return PsiTreeUtil.getNonStrictParentOfType(element, PyFunction.class, PyClass.class, PyFile.class);
+  }
+
+  @NotNull
+  @Override
+  public HierarchyBrowser createHierarchyBrowser(PsiElement target) {
+    return new PyCallHierarchyBrowser(target);
+  }
+
+  @Override
+  public void browserActivated(@NotNull HierarchyBrowser hierarchyBrowser) {
+    ((PyCallHierarchyBrowser)hierarchyBrowser).changeView(CallHierarchyBrowserBase.CALLER_TYPE);
+  }
+}