SurroundWithTryCatchFix.java

/*
 * Copyright 2000-2016 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.daemon.impl.quickfix;

import com.intellij.codeInsight.daemon.QuickFixBundle;
import com.intellij.codeInsight.generation.surroundWith.JavaWithTryCatchSurrounder;
import com.intellij.codeInsight.intention.IntentionAction;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.editor.LogicalPosition;
import com.intellij.openapi.editor.ScrollType;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.util.TextRange;
import com.intellij.psi.*;
import com.intellij.psi.util.PsiTreeUtil;
import com.intellij.refactoring.util.RefactoringChangeUtil;
import com.intellij.refactoring.util.RefactoringUtil;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;

/**
 * @author mike
 * Date: Aug 19, 2002
 */
public class SurroundWithTryCatchFix implements IntentionAction {
  private static final Logger LOG = Logger.getInstance("#com.intellij.codeInsight.daemon.impl.quickfix.SurroundWithTryCatchFix");

  private PsiElement myStatement;

  public SurroundWithTryCatchFix(@NotNull PsiElement element) {
    final PsiFunctionalExpression functionalExpression = PsiTreeUtil.getParentOfType(element, PsiFunctionalExpression.class, false, PsiStatement.class);
    if (functionalExpression == null) {
      myStatement = PsiTreeUtil.getNonStrictParentOfType(element, PsiStatement.class);
    }
    else if (functionalExpression instanceof PsiLambdaExpression) {
      myStatement = functionalExpression;
    }
  }

  @Override
  @NotNull
  public String getText() {
    return QuickFixBundle.message("surround.with.try.catch.fix");
  }

  @Override
  @NotNull
  public String getFamilyName() {
    return QuickFixBundle.message("surround.with.try.catch.fix");
  }

  @Override
  public boolean isAvailable(@NotNull Project project, Editor editor, PsiFile file) {
    return myStatement != null &&
           myStatement.isValid() &&
           (!(myStatement instanceof PsiExpressionStatement) ||
            !RefactoringChangeUtil.isSuperOrThisMethodCall(((PsiExpressionStatement)myStatement).getExpression()));
  }

  @Override
  public void invoke(@NotNull Project project, Editor editor, PsiFile file) {
    int col = editor.getCaretModel().getLogicalPosition().column;
    int line = editor.getCaretModel().getLogicalPosition().line;
    editor.getCaretModel().moveToLogicalPosition(new LogicalPosition(0, 0));

    if (myStatement.getParent() instanceof PsiForStatement) {
      PsiForStatement forStatement = (PsiForStatement)myStatement.getParent();
      if (myStatement.equals(forStatement.getInitialization()) || myStatement.equals(forStatement.getUpdate())) {
        myStatement = forStatement;
      }
    }

    if (myStatement instanceof PsiLambdaExpression) {
      PsiElement body = ((PsiLambdaExpression)myStatement).getBody();
      if (body instanceof PsiExpression) {
        myStatement = RefactoringUtil.expandExpressionLambdaToCodeBlock(body);
      }

      body = ((PsiLambdaExpression)myStatement).getBody();
      LOG.assertTrue(body instanceof PsiCodeBlock);
      final PsiStatement[] statements = ((PsiCodeBlock)body).getStatements();
      LOG.assertTrue(statements.length == 1);
      myStatement = statements[0];
    }

    TextRange range = null;

    try{
      JavaWithTryCatchSurrounder handler = new JavaWithTryCatchSurrounder();
      range = handler.surroundElements(project, editor, new PsiElement[] {myStatement});
    }
    catch(IncorrectOperationException e){
      LOG.error(e);
    }
    LogicalPosition pos = new LogicalPosition(line, col);
    editor.getCaretModel().moveToLogicalPosition(pos);
    if (range != null) {
      int offset = range.getStartOffset();
      editor.getCaretModel().moveToOffset(offset);
      editor.getScrollingModel().scrollToCaret(ScrollType.RELATIVE);
      editor.getSelectionModel().setSelection(range.getStartOffset(), range.getEndOffset());
    }
  }

  @Override
  public boolean startInWriteAction() {
    return true;
  }
}