com.intellij.codeInsight.daemon.impl.quickfix.MoveClassToSeparateFileFix.java Source code

Introduction

Here is the source code for com.intellij.codeInsight.daemon.impl.quickfix.MoveClassToSeparateFileFix.java

Source

/*
 * 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.daemon.impl.quickfix;

import com.intellij.codeInsight.FileModificationService;
import com.intellij.codeInsight.daemon.QuickFixBundle;
import com.intellij.codeInsight.intention.IntentionAction;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.fileEditor.FileEditorManager;
import com.intellij.openapi.fileEditor.OpenFileDescriptor;
import com.intellij.openapi.project.Project;
import com.intellij.psi.JavaDirectoryService;
import com.intellij.psi.PsiClass;
import com.intellij.psi.PsiDirectory;
import com.intellij.psi.PsiFile;
import com.intellij.psi.impl.file.JavaDirectoryServiceImpl;
import com.intellij.util.IncorrectOperationException;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

public class MoveClassToSeparateFileFix implements IntentionAction {
    private static final Logger LOG = Logger.getInstance(MoveClassToSeparateFileFix.class);

    private final PsiClass myClass;

    public MoveClassToSeparateFileFix(PsiClass aClass) {
        myClass = aClass;
    }

    @Override
    @NotNull
    public String getText() {
        return QuickFixBundle.message("move.class.to.separate.file.text", myClass.getName());
    }

    @Override
    @NotNull
    public String getFamilyName() {
        return QuickFixBundle.message("move.class.to.separate.file.family");
    }

    @Override
    public boolean isAvailable(@NotNull Project project, @Nullable Editor editor, @NotNull PsiFile file) {
        if (!myClass.isValid() || !myClass.getManager().isInProject(myClass))
            return false;
        PsiDirectory dir = file.getContainingDirectory();
        if (dir == null)
            return false;
        try {
            JavaDirectoryServiceImpl.checkCreateClassOrInterface(dir, myClass.getName());
        } catch (IncorrectOperationException e) {
            return false;
        }

        return true;
    }

    @Override
    public void invoke(@NotNull Project project, @Nullable Editor editor, @NotNull PsiFile file) {
        if (!FileModificationService.getInstance().prepareFileForWrite(myClass.getContainingFile()))
            return;

        PsiDirectory dir = file.getContainingDirectory();
        try {
            String name = myClass.getName();
            JavaDirectoryService directoryService = JavaDirectoryService.getInstance();
            PsiClass placeHolder = myClass.isInterface() ? directoryService.createInterface(dir, name)
                    : directoryService.createClass(dir, name);
            PsiClass newClass = (PsiClass) placeHolder.replace(myClass);
            myClass.delete();

            OpenFileDescriptor descriptor = new OpenFileDescriptor(project,
                    newClass.getContainingFile().getVirtualFile(), newClass.getTextOffset());
            FileEditorManager.getInstance(project).openTextEditor(descriptor, true);
        } catch (IncorrectOperationException e) {
            LOG.error(e);
        }
    }

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

}