ThermitAntBuildFile.java

/*
 * 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 org.napile.idea.thermit.config.actions;

import org.napile.idea.thermit.ThermitBundle;
import org.napile.idea.thermit.config.AntNoFileException;
import org.napile.idea.thermit.config.ThermitConfiguration;
import org.napile.idea.thermit.config.ThermitConfigurationBase;
import com.intellij.openapi.actionSystem.AnAction;
import com.intellij.openapi.actionSystem.AnActionEvent;
import com.intellij.openapi.actionSystem.DataContext;
import com.intellij.openapi.actionSystem.PlatformDataKeys;
import com.intellij.openapi.actionSystem.Presentation;
import com.intellij.openapi.project.Project;
import com.intellij.openapi.ui.Messages;
import com.intellij.openapi.vfs.VirtualFile;
import com.intellij.openapi.wm.ToolWindowId;
import com.intellij.openapi.wm.ToolWindowManager;
import com.intellij.psi.PsiFile;
import com.intellij.psi.PsiManager;
import com.intellij.psi.xml.XmlDocument;
import com.intellij.psi.xml.XmlFile;
import com.intellij.psi.xml.XmlTag;

public class ThermitAntBuildFile extends AnAction
{
	public void actionPerformed(AnActionEvent event)
	{
		DataContext dataContext = event.getDataContext();
		Project project = PlatformDataKeys.PROJECT.getData(dataContext);
		VirtualFile file = PlatformDataKeys.VIRTUAL_FILE.getData(dataContext);
		ThermitConfiguration thermitConfiguration = ThermitConfiguration.getInstance(project);
		try
		{
			thermitConfiguration.addBuildFile(file);
			ToolWindowManager.getInstance(project).getToolWindow(ToolWindowId.ANT_BUILD).activate(null);
		}
		catch(AntNoFileException e)
		{
			String message = e.getMessage();
			if(message == null || message.length() == 0)
			{
				message = ThermitBundle.message("cannot.add.build.files.from.excluded.directories.error.message", e.getFile().getPresentableUrl());
			}

			Messages.showWarningDialog(project, message, ThermitBundle.message("cannot.add.build.file.dialog.title"));
		}
	}

	public void update(AnActionEvent e)
	{
		final DataContext dataContext = e.getDataContext();
		final Presentation presentation = e.getPresentation();
		final Project project = PlatformDataKeys.PROJECT.getData(dataContext);
		if(project == null)
		{
			disable(presentation);
			return;
		}

		final VirtualFile file = PlatformDataKeys.VIRTUAL_FILE.getData(dataContext);
		if(file == null)
		{
			disable(presentation);
			return;
		}

		final PsiFile psiFile = PsiManager.getInstance(project).findFile(file);
		if(!(psiFile instanceof XmlFile))
		{
			disable(presentation);
			return;
		}

		final XmlFile xmlFile = (XmlFile) psiFile;
		final XmlDocument document = xmlFile.getDocument();
		if(document == null)
		{
			disable(presentation);
			return;
		}

		final XmlTag rootTag = document.getRootTag();
		if(rootTag == null)
		{
			disable(presentation);
			return;
		}

		if(!"project".equals(rootTag.getName()))
		{
			disable(presentation);
			return;
		}

		if(ThermitConfigurationBase.getInstance(project).getAntBuildFile(psiFile) != null)
		{
			disable(presentation);
			return;
		}

		enable(presentation);
	}

	private static void enable(Presentation presentation)
	{
		presentation.setEnabled(true);
		presentation.setVisible(true);
	}

	private static void disable(Presentation presentation)
	{
		presentation.setEnabled(false);
		presentation.setVisible(false);
	}
}