java/java-impl/src/com/intellij/codeInsight/generation/surroundWith/JavaWithIfElseSurrounder.java

   1
   2 /*
   3  * Copyright 2000-2009 JetBrains s.r.o.
   4  *
   5  * Licensed under the Apache License, Version 2.0 (the "License");
   6  * you may not use this file except in compliance with the License.
   7  * You may obtain a copy of the License at
   8  *
   9  * http://www.apache.org/licenses/LICENSE-2.0
  10  *
  11  * Unless required by applicable law or agreed to in writing, software
  12  * distributed under the License is distributed on an "AS IS" BASIS,
  13  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  14  * See the License for the specific language governing permissions and
  15  * limitations under the License.
  16  */
  17 package com.intellij.codeInsight.generation.surroundWith;
  18
  19 import com.intellij.codeInsight.CodeInsightBundle;
  20 import com.intellij.codeInsight.CodeInsightUtilBase;
  21 import com.intellij.openapi.editor.Editor;
  22 import com.intellij.openapi.project.Project;
  23 import com.intellij.openapi.util.TextRange;
  24 import com.intellij.psi.*;
  25 import com.intellij.psi.codeStyle.CodeStyleManager;
  26 import com.intellij.util.IncorrectOperationException;
  27 import org.jetbrains.annotations.NonNls;
  28
  29 class JavaWithIfElseSurrounder extends JavaStatementsSurrounder{
  30   public String getTemplateDescription() {
  31     return CodeInsightBundle.message("surround.with.ifelse.template");
  32   }
  33
  34   public TextRange surroundStatements(Project project, Editor editor, PsiElement container, PsiElement[] statements) throws IncorrectOperationException{
  35     PsiManager manager = PsiManager.getInstance(project);
  36     PsiElementFactory factory = JavaPsiFacade.getInstance(manager.getProject()).getElementFactory();
  37     CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project);
  38
  39     statements = SurroundWithUtil.moveDeclarationsOut(container, statements, false);
  40     if (statements.length == 0){
  41       return null;
  42     }
  43
  44     @NonNls String text = "if(a){\n}else{\n}";
  45     PsiIfStatement ifStatement = (PsiIfStatement)factory.createStatementFromText(text, null);
  46     ifStatement = (PsiIfStatement)codeStyleManager.reformat(ifStatement);
  47
  48     ifStatement = (PsiIfStatement)container.addAfter(ifStatement, statements[statements.length - 1]);
  49
  50     PsiCodeBlock thenBlock = ((PsiBlockStatement)ifStatement.getThenBranch()).getCodeBlock();
  51     thenBlock.addRange(statements[0], statements[statements.length - 1]);
  52     container.deleteChildRange(statements[0], statements[statements.length - 1]);
  53     ifStatement = CodeInsightUtilBase.forcePsiPostprocessAndRestoreElement(ifStatement);
  54     TextRange range = ifStatement.getCondition().getTextRange();
  55     editor.getDocument().deleteString(range.getStartOffset(), range.getEndOffset());
  56     return new TextRange(range.getStartOffset(), range.getStartOffset());
  57   }
  58 }