| /* |
| * Copyright 2000-2013 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.refactoring.rename; |
| |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.util.io.FileUtil; |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiPolyVariantReference; |
| import com.intellij.psi.PsiReference; |
| import com.intellij.psi.ResolveResult; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.refactoring.rename.RenamePsiFileProcessor; |
| import com.intellij.refactoring.rename.UnresolvableCollisionUsageInfo; |
| import com.intellij.usageView.UsageInfo; |
| import com.jetbrains.python.PyNames; |
| import com.jetbrains.python.psi.PyFile; |
| import com.jetbrains.python.psi.PyImportElement; |
| import com.jetbrains.python.psi.PyImportStatementBase; |
| import org.jetbrains.annotations.NotNull; |
| import org.jetbrains.annotations.Nullable; |
| |
| import java.util.ArrayList; |
| import java.util.Collection; |
| import java.util.List; |
| import java.util.Map; |
| |
| /** |
| * @author yole |
| */ |
| public class RenamePyFileProcessor extends RenamePsiFileProcessor { |
| @Override |
| public boolean canProcessElement(@NotNull PsiElement element) { |
| return element instanceof PyFile; |
| } |
| |
| @Override |
| public PsiElement substituteElementToRename(PsiElement element, @Nullable Editor editor) { |
| PyFile file = (PyFile) element; |
| if (file.getName().equals(PyNames.INIT_DOT_PY)) { |
| return file.getParent(); |
| } |
| return element; |
| } |
| |
| @NotNull |
| @Override |
| public Collection<PsiReference> findReferences(PsiElement element) { |
| final List<PsiReference> results = new ArrayList<PsiReference>(); |
| for (PsiReference reference : super.findReferences(element)) { |
| if (isNotAliasedInImportElement(reference)) { |
| results.add(reference); |
| } |
| } |
| return results; |
| } |
| |
| @Override |
| public void findCollisions(PsiElement element, |
| final String newName, |
| Map<? extends PsiElement, String> allRenames, |
| List<UsageInfo> result) { |
| final String newFileName = FileUtil.getNameWithoutExtension(newName); |
| if (!PyNames.isIdentifier(newFileName)) { |
| List<UsageInfo> usages = new ArrayList<UsageInfo>(result); |
| for (UsageInfo usageInfo : usages) { |
| final PyImportStatementBase importStatement = PsiTreeUtil.getParentOfType(usageInfo.getElement(), PyImportStatementBase.class); |
| if (importStatement != null) { |
| result.add(new UnresolvableCollisionUsageInfo(importStatement, element) { |
| @Override |
| public String getDescription() { |
| return "The name '" + newFileName + "' is not a valid Python identifier. Cannot update import statement in '" + |
| importStatement.getContainingFile().getName() + "'"; |
| } |
| }); |
| } |
| } |
| } |
| } |
| |
| private static boolean isNotAliasedInImportElement(@NotNull PsiReference reference) { |
| boolean include = true; |
| if (reference instanceof PsiPolyVariantReference) { |
| final ResolveResult[] results = ((PsiPolyVariantReference)reference).multiResolve(false); |
| for (ResolveResult result : results) { |
| final PsiElement resolved = result.getElement(); |
| if (resolved instanceof PyImportElement) { |
| if (((PyImportElement)resolved).getAsName() != null) { |
| include = false; |
| break; |
| } |
| } |
| } |
| } |
| return include; |
| } |
| } |