| /* |
| * Copyright 2000-2009 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.codeInsight.unwrap; |
| |
| import com.intellij.psi.PsiElement; |
| import com.intellij.psi.PsiIfStatement; |
| import com.intellij.psi.PsiStatement; |
| import com.intellij.psi.util.PsiUtil; |
| import com.intellij.util.IncorrectOperationException; |
| |
| import java.util.Set; |
| |
| public abstract class JavaElseUnwrapperBase extends JavaUnwrapper { |
| public JavaElseUnwrapperBase(String description) { |
| super(description); |
| } |
| |
| @Override |
| public boolean isApplicableTo(PsiElement e) { |
| return (PsiUtil.isElseBlock(e) || isElseKeyword(e)) && isValidConstruct(e); |
| } |
| |
| private boolean isElseKeyword(PsiElement e) { |
| PsiElement p = e.getParent(); |
| return p instanceof PsiIfStatement && e == ((PsiIfStatement)p).getElseElement(); |
| } |
| |
| private boolean isValidConstruct(PsiElement e) { |
| return ((PsiIfStatement)e.getParent()).getElseBranch() != null; |
| } |
| |
| @Override |
| public void collectElementsToIgnore(PsiElement element, Set<PsiElement> result) { |
| PsiElement parent = element.getParent(); |
| |
| while (parent instanceof PsiIfStatement) { |
| result.add(parent); |
| parent = parent.getParent(); |
| } |
| } |
| |
| @Override |
| protected void doUnwrap(PsiElement element, Context context) throws IncorrectOperationException { |
| PsiStatement elseBranch; |
| |
| if (isElseKeyword(element)) { |
| elseBranch = ((PsiIfStatement)element.getParent()).getElseBranch(); |
| } |
| else { |
| elseBranch = (PsiStatement)element; |
| } |
| |
| unwrapElseBranch(elseBranch, element.getParent(), context); |
| } |
| |
| protected abstract void unwrapElseBranch(PsiStatement branch, PsiElement parent, Context context) throws IncorrectOperationException; |
| } |