| /* |
| * 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.intellij.codeInsight.generation.surroundWith; |
| |
| import com.intellij.codeInsight.CodeInsightBundle; |
| import com.intellij.codeInsight.CodeInsightUtilCore; |
| import com.intellij.openapi.editor.Editor; |
| import com.intellij.openapi.project.Project; |
| import com.intellij.openapi.util.TextRange; |
| import com.intellij.psi.*; |
| import com.intellij.psi.codeStyle.CodeStyleManager; |
| import com.intellij.psi.util.FileTypeUtils; |
| import com.intellij.util.IncorrectOperationException; |
| import org.jetbrains.annotations.NonNls; |
| import org.jetbrains.annotations.NotNull; |
| |
| public class JavaWithIfExpressionSurrounder extends JavaBooleanExpressionSurrounder { |
| @Override |
| public boolean isApplicable(PsiExpression expr) { |
| if (!super.isApplicable(expr)) return false; |
| if (!expr.isPhysical()) return false; |
| PsiElement expressionStatement = expr.getParent(); |
| if (!(expressionStatement instanceof PsiExpressionStatement)) return false; |
| |
| PsiElement statementParent = expressionStatement.getParent(); |
| if (!isElseBranch(expr, statementParent) && |
| !(statementParent instanceof PsiCodeBlock) && |
| !(FileTypeUtils.isInServerPageFile(statementParent) && statementParent instanceof PsiFile)) { |
| return false; |
| } |
| return true; |
| } |
| |
| @Override |
| public TextRange surroundExpression(Project project, Editor editor, PsiExpression expr) throws IncorrectOperationException { |
| PsiManager manager = expr.getManager(); |
| PsiElementFactory factory = JavaPsiFacade.getInstance(manager.getProject()).getElementFactory(); |
| CodeStyleManager codeStyleManager = CodeStyleManager.getInstance(project); |
| |
| @NonNls String text = "if(a){\nst;\n}"; |
| PsiIfStatement ifStatement = (PsiIfStatement)factory.createStatementFromText(text, null); |
| ifStatement = (PsiIfStatement)codeStyleManager.reformat(ifStatement); |
| |
| PsiExpression condition = ifStatement.getCondition(); |
| if (condition != null) { |
| condition.replace(expr); |
| } |
| |
| PsiExpressionStatement statement = (PsiExpressionStatement)expr.getParent(); |
| ifStatement = (PsiIfStatement)statement.replace(ifStatement); |
| |
| PsiStatement thenBranch = ifStatement.getThenBranch(); |
| if (thenBranch != null && thenBranch instanceof PsiBlockStatement) { |
| PsiCodeBlock block = ((PsiBlockStatement)thenBranch).getCodeBlock(); |
| block = CodeInsightUtilCore.forcePsiPostprocessAndRestoreElement(block); |
| TextRange range = block.getStatements()[0].getTextRange(); |
| editor.getDocument().deleteString(range.getStartOffset(), range.getEndOffset()); |
| return TextRange.from(range.getStartOffset(), 0); |
| } |
| return TextRange.from(editor.getCaretModel().getOffset(), 0); |
| } |
| |
| @Override |
| public String getTemplateDescription() { |
| return CodeInsightBundle.message("surround.with.if.expression.template"); |
| } |
| |
| private static boolean isElseBranch(@NotNull PsiExpression expression, @NotNull PsiElement statementParent) { |
| if (statementParent instanceof PsiIfStatement) { |
| PsiStatement elseBranch = ((PsiIfStatement)statementParent).getElseBranch(); |
| if (elseBranch != null && elseBranch.getFirstChild() == expression) { |
| return true; |
| } |
| } |
| return false; |
| } |
| } |