| /* |
| * 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.intellij.refactoring.move.moveClassesOrPackages; |
| |
| import com.intellij.codeInsight.ChangeContextUtil; |
| import com.intellij.lang.java.JavaLanguage; |
| import com.intellij.openapi.diagnostic.Logger; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.psi.*; |
| import com.intellij.psi.codeStyle.CodeStyleSettingsManager; |
| import com.intellij.psi.codeStyle.JavaCodeStyleManager; |
| import com.intellij.psi.util.PsiTreeUtil; |
| import com.intellij.psi.util.PsiUtil; |
| import com.intellij.refactoring.util.NonCodeUsageInfo; |
| import com.intellij.usageView.UsageInfo; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NotNull; |
| |
| import java.util.*; |
| |
| /** |
| * @author Max Medvedev |
| */ |
| public class JavaMoveClassToInnerHandler implements MoveClassToInnerHandler { |
| private static final Logger LOG = Logger.getInstance(JavaMoveClassToInnerHandler.class); |
| |
| @Override |
| public PsiClass moveClass(@NotNull PsiClass aClass, @NotNull PsiClass targetClass) { |
| if (aClass.getLanguage() != JavaLanguage.INSTANCE) { |
| return null; |
| } |
| |
| ChangeContextUtil.encodeContextInfo(aClass, true); |
| PsiClass newClass = (PsiClass)targetClass.addBefore(aClass, targetClass.getRBrace()); |
| if (targetClass.isInterface()) { |
| PsiUtil.setModifierProperty(newClass, PsiModifier.PACKAGE_LOCAL, true); |
| } |
| else { |
| PsiUtil.setModifierProperty(newClass, PsiModifier.STATIC, true); |
| } |
| return (PsiClass)ChangeContextUtil.decodeContextInfo(newClass, null, null); |
| } |
| |
| @Override |
| public List<PsiElement> filterImports(@NotNull List<UsageInfo> usageInfos, @NotNull Project project) { |
| final List<PsiElement> importStatements = new ArrayList<PsiElement>(); |
| if (!CodeStyleSettingsManager.getSettings(project).INSERT_INNER_CLASS_IMPORTS) { |
| filterUsagesInImportStatements(usageInfos, importStatements); |
| } |
| else { |
| //rebind imports first |
| Collections.sort(usageInfos, new Comparator<UsageInfo>() { |
| public int compare(UsageInfo o1, UsageInfo o2) { |
| return PsiUtil.BY_POSITION.compare(o1.getElement(), o2.getElement()); |
| } |
| }); |
| } |
| return importStatements; |
| } |
| |
| private static void filterUsagesInImportStatements(final List<UsageInfo> usages, final List<PsiElement> importStatements) { |
| for (Iterator<UsageInfo> iterator = usages.iterator(); iterator.hasNext(); ) { |
| UsageInfo usage = iterator.next(); |
| PsiElement element = usage.getElement(); |
| if (element == null) continue; |
| PsiImportStatement stmt = PsiTreeUtil.getParentOfType(element, PsiImportStatement.class); |
| if (stmt != null) { |
| importStatements.add(stmt); |
| iterator.remove(); |
| } |
| } |
| } |
| |
| public void retargetClassRefsInMoved(@NotNull final Map<PsiElement, PsiElement> oldToNewElementsMapping) { |
| for (final PsiElement newClass : oldToNewElementsMapping.values()) { |
| if (newClass.getLanguage() != JavaLanguage.INSTANCE) continue; |
| newClass.accept(new JavaRecursiveElementVisitor() { |
| @Override |
| public void visitReferenceElement(final PsiJavaCodeReferenceElement reference) { |
| PsiElement element = reference.resolve(); |
| if (element instanceof PsiClass) { |
| for (PsiElement oldClass : oldToNewElementsMapping.keySet()) { |
| if (PsiTreeUtil.isAncestor(oldClass, element, false)) { |
| PsiClass newInnerClass = |
| findMatchingClass((PsiClass)oldClass, (PsiClass)oldToNewElementsMapping.get(oldClass), (PsiClass)element); |
| try { |
| reference.bindToElement(newInnerClass); |
| return; |
| } |
| catch (IncorrectOperationException ex) { |
| LOG.error(ex); |
| } |
| } |
| } |
| } |
| super.visitReferenceElement(reference); |
| } |
| }); |
| } |
| } |
| |
| |
| private static PsiClass findMatchingClass(final PsiClass classToMove, final PsiClass newClass, final PsiClass innerClass) { |
| if (classToMove == innerClass) { |
| return newClass; |
| } |
| PsiClass parentClass = findMatchingClass(classToMove, newClass, innerClass.getContainingClass()); |
| PsiClass newInnerClass = parentClass.findInnerClassByName(innerClass.getName(), false); |
| assert newInnerClass != null; |
| return newInnerClass; |
| } |
| |
| public void retargetNonCodeUsages(@NotNull final Map<PsiElement, PsiElement> oldToNewElementMap, |
| @NotNull final NonCodeUsageInfo[] nonCodeUsages) { |
| for (PsiElement newClass : oldToNewElementMap.values()) { |
| if (newClass.getLanguage() != JavaLanguage.INSTANCE) continue; |
| newClass.accept(new PsiRecursiveElementVisitor() { |
| @Override |
| public void visitElement(final PsiElement element) { |
| super.visitElement(element); |
| List<NonCodeUsageInfo> list = element.getCopyableUserData(MoveClassToInnerProcessor.ourNonCodeUsageKey); |
| if (list != null) { |
| for (NonCodeUsageInfo info : list) { |
| for (int i = 0; i < nonCodeUsages.length; i++) { |
| if (nonCodeUsages[i] == info) { |
| nonCodeUsages[i] = info.replaceElement(element); |
| break; |
| } |
| } |
| } |
| element.putCopyableUserData(MoveClassToInnerProcessor.ourNonCodeUsageKey, null); |
| } |
| } |
| }); |
| } |
| } |
| |
| @Override |
| public void removeRedundantImports(PsiFile targetClassFile) { |
| if (targetClassFile instanceof PsiJavaFile) { |
| JavaCodeStyleManager.getInstance(targetClassFile.getProject()).removeRedundantImports((PsiJavaFile)targetClassFile); |
| } |
| } |
| } |