Files
openide/java/java-impl/src/com/intellij/codeInsight/generation/surroundWith/JavaWithIfExpressionSurrounder.java
Tagir Valeev 0ea0eadc51 [mod-commands] IJPL-149593 ModCommand-based Surrounder API
GitOrigin-RevId: 56b1bc727db4e686afc6363326c1b079030da414
2024-05-12 17:34:00 +00:00

90 lines
3.7 KiB
Java

/*
* 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.modcommand.ActionContext;
import com.intellij.modcommand.ModPsiUpdater;
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 org.jetbrains.annotations.NonNls;
import org.jetbrains.annotations.NotNull;
public class JavaWithIfExpressionSurrounder extends JavaExpressionModCommandSurrounder {
@Override
public boolean isApplicable(PsiExpression expr) {
PsiType type = expr.getType();
if (!(type != null && (PsiTypes.booleanType().equals(type) || PsiTypes.booleanType().equals(PsiPrimitiveType.getUnboxedType(type))))) 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
protected void surroundExpression(@NotNull ActionContext context, @NotNull PsiExpression expr, @NotNull ModPsiUpdater updater) {
Project project = context.project();
PsiElementFactory factory = JavaPsiFacade.getElementFactory(project);
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 instanceof PsiBlockStatement blockStatement) {
PsiCodeBlock block = blockStatement.getCodeBlock();
block = CodeInsightUtilCore.forcePsiPostprocessAndRestoreElement(block);
TextRange range = block.getStatements()[0].getTextRange();
block.getContainingFile().getFileDocument().deleteString(range.getStartOffset(), range.getEndOffset());
updater.moveCaretTo(range.getStartOffset());
}
}
@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 ifStatement) {
PsiStatement elseBranch = ifStatement.getElseBranch();
if (elseBranch != null && elseBranch.getFirstChild() == expression) {
return true;
}
}
return false;
}
}