com.intellij.ide.projectView.impl.RenameModuleHandler.java Source code

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Here is the source code for com.intellij.ide.projectView.impl.RenameModuleHandler.java

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/*
 * 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.ide.projectView.impl;

import com.intellij.ide.IdeBundle;
import com.intellij.ide.TitledHandler;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.LangDataKeys;
import com.intellij.openapi.application.ApplicationManager;
import com.intellij.openapi.command.CommandProcessor;
import com.intellij.openapi.diagnostic.Logger;
import com.intellij.openapi.editor.Editor;
import com.intellij.openapi.module.ModifiableModuleModel;
import com.intellij.openapi.module.Module;
import com.intellij.openapi.module.ModuleManager;
import com.intellij.openapi.module.ModuleWithNameAlreadyExistsException;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.InputValidator;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.util.Ref;
import com.intellij.psi.PsiElement;
import com.intellij.psi.PsiFile;
import com.intellij.refactoring.RefactoringBundle;
import com.intellij.refactoring.rename.RenameHandler;
import org.jetbrains.annotations.NotNull;
import org.jetbrains.annotations.Nullable;

/**
 * @author dsl
 */

public class RenameModuleHandler implements RenameHandler, TitledHandler {
    private static final Logger LOG = Logger
            .getInstance("#com.intellij.ide.projectView.actions.RenameModuleHandler");

    @Override
    public boolean isAvailableOnDataContext(DataContext dataContext) {
        Module module = LangDataKeys.MODULE_CONTEXT.getData(dataContext);
        return module != null;
    }

    @Override
    public boolean isRenaming(DataContext dataContext) {
        return isAvailableOnDataContext(dataContext);
    }

    @Override
    public void invoke(@NotNull Project project, Editor editor, PsiFile file, DataContext dataContext) {
        LOG.assertTrue(false);
    }

    @Override
    public void invoke(@NotNull final Project project, @NotNull PsiElement[] elements,
            @NotNull DataContext dataContext) {
        final Module module = LangDataKeys.MODULE_CONTEXT.getData(dataContext);
        LOG.assertTrue(module != null);
        Messages.showInputDialog(project, IdeBundle.message("prompt.enter.new.module.name"),
                IdeBundle.message("title.rename.module"), Messages.getQuestionIcon(), module.getName(),
                new MyInputValidator(project, module));
    }

    @Override
    public String getActionTitle() {
        return RefactoringBundle.message("rename.module.title");
    }

    private static class MyInputValidator implements InputValidator {
        private final Project myProject;
        private final Module myModule;

        public MyInputValidator(Project project, Module module) {
            myProject = project;
            myModule = module;
        }

        @Override
        public boolean checkInput(String inputString) {
            return inputString != null && inputString.length() > 0;
        }

        @Override
        public boolean canClose(final String inputString) {
            final String oldName = myModule.getName();
            final ModifiableModuleModel modifiableModel = renameModule(inputString);
            if (modifiableModel == null)
                return false;
            final Ref<Boolean> success = Ref.create(Boolean.TRUE);
            CommandProcessor.getInstance().executeCommand(myProject, new Runnable() {
                @Override
                public void run() {
                    ApplicationManager.getApplication().runWriteAction(new Runnable() {
                        @Override
                        public void run() {
                            modifiableModel.commit();
                        }
                    });
                }
            }, IdeBundle.message("command.renaming.module", oldName), null);
            return success.get().booleanValue();
        }

        @Nullable
        private ModifiableModuleModel renameModule(String inputString) {
            final ModifiableModuleModel modifiableModel = ModuleManager.getInstance(myProject).getModifiableModel();
            try {
                modifiableModel.renameModule(myModule, inputString);
            } catch (ModuleWithNameAlreadyExistsException moduleWithNameAlreadyExists) {
                Messages.showErrorDialog(myProject, IdeBundle.message("error.module.already.exists", inputString),
                        IdeBundle.message("title.rename.module"));
                return null;
            }
            return modifiableModel;
        }
    }

}