/*******************************************************************************
* Copyright (c) 2006 ,2008 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.jst.jsp.ui.internal.wizard;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import org.eclipse.core.resources.IProject;
import org.eclipse.core.resources.IResource;
import org.eclipse.core.resources.IWorkspace;
import org.eclipse.core.resources.ResourcesPlugin;
import org.eclipse.core.runtime.CoreException;
import org.eclipse.core.runtime.IPath;
import org.eclipse.core.runtime.IStatus;
import org.eclipse.core.runtime.Platform;
import org.eclipse.core.runtime.content.IContentType;
import org.eclipse.jdt.core.JavaCore;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jst.jsp.core.internal.provisional.contenttype.ContentTypeIdForJSP;
import org.eclipse.jst.jsp.core.internal.util.FacetModuleCoreSupport;
import org.eclipse.jst.jsp.ui.internal.JSPUIMessages;
import org.eclipse.jst.jsp.ui.internal.Logger;
import org.eclipse.osgi.util.NLS;
import org.eclipse.ui.dialogs.WizardNewFileCreationPage;
class NewTagFileWizardPage extends WizardNewFileCreationPage {
private IContentType fContentType;
private List fValidExtensions = null;
public NewTagFileWizardPage(String pageName, IStructuredSelection selection) {
super(pageName, selection);
}
/**
* This method is overriden to set the selected folder to web contents
* folder if the current selection is outside the web contents folder.
*/
protected void initialPopulateContainerNameField() {
super.initialPopulateContainerNameField();
IPath fullPath = getContainerFullPath();
IProject project = getProjectFromPath(fullPath);
IPath webContentPath = getWebContentPath(project);
if (webContentPath != null && !webContentPath.isPrefixOf(fullPath)) {
setContainerFullPath(webContentPath);
}
}
/**
* This method is overriden to set additional validation specific to jsp
* files.
*/
protected boolean validatePage() {
setMessage(null);
setErrorMessage(null);
if (!super.validatePage()) {
return false;
}
String fileName = getFileName();
IPath fullPath = getContainerFullPath();
if ((fullPath != null) && (fullPath.isEmpty() == false) && (fileName != null)) {
// check that filename does not contain invalid extension
if (!extensionValidForContentType(fileName)) {
setErrorMessage(NLS.bind(JSPUIMessages._ERROR_FILENAME_MUST_END_JSP, getValidExtensions().toString()));
return false;
}
// no file extension specified so check adding default
// extension doesn't equal a file that already exists
if (fileName.lastIndexOf('.') == -1) {
String newFileName = addDefaultExtension(fileName);
IPath resourcePath = fullPath.append(newFileName);
IWorkspace workspace = ResourcesPlugin.getWorkspace();
IStatus result = workspace.validatePath(resourcePath.toString(), IResource.FOLDER);
if (!result.isOK()) {
// path invalid
setErrorMessage(result.getMessage());
return false;
}
if ((workspace.getRoot().getFolder(resourcePath).exists() || workspace.getRoot().getFile(resourcePath).exists())) {
setErrorMessage(JSPUIMessages.ResourceGroup_nameExists);
return false;
}
}
// get the IProject for the selection path
IProject project = getProjectFromPath(fullPath);
if (project != null) {
if (!isJavaProject(project)) {
setMessage(JSPUIMessages._WARNING_FILE_MUST_BE_INSIDE_JAVA_PROJECT, WARNING);
}
else if (isDynamicWebProject(project)) {
// JSP Spec - 8.4.1
final IPath[] paths = FacetModuleCoreSupport.getAcceptableRootPaths(project);
if (paths != null) {
boolean inTagsFolder = false;
for (int i = 0; i < paths.length; i++) {
if (paths[i].append("/WEB-INF/tags").isPrefixOf(fullPath)) { //$NON-NLS-1$
inTagsFolder = true;
break;
}
}
if (!inTagsFolder) {
setMessage(JSPUIMessages._WARNING_INVALID_TAG_LOCATION, WARNING);
}
}
}
}
}
return true;
}
/**
* Adds default extension to the filename
*
* @param filename
* @return
*/
String addDefaultExtension(String filename) {
StringBuffer newFileName = new StringBuffer(filename);
// Preferences preference = JSPCorePlugin.getDefault().getPluginPreferences();
String ext = "tag";//preference.getString(JSPCorePreferenceNames.DEFAULT_EXTENSION); //$NON-NLS-1$
newFileName.append("."); //$NON-NLS-1$
newFileName.append(ext);
return newFileName.toString();
}
/**
* Get content type associated with this new file wizard
*
* @return IContentType
*/
private IContentType getContentType() {
if (fContentType == null)
fContentType = Platform.getContentTypeManager().getContentType(ContentTypeIdForJSP.ContentTypeID_JSPTAG);
return fContentType;
}
/**
* Get list of valid extensions for JSP Content type
*
* @return
*/
private List getValidExtensions() {
if (fValidExtensions == null) {
IContentType type = getContentType();
fValidExtensions = new ArrayList(Arrays.asList(type.getFileSpecs(IContentType.FILE_EXTENSION_SPEC)));
}
return fValidExtensions;
}
/**
* Verifies if fileName is valid name for content type. Takes base content
* type into consideration.
*
* @param fileName
* @return true if extension is valid for this content type
*/
private boolean extensionValidForContentType(String fileName) {
boolean valid = false;
IContentType type = getContentType();
// there is currently an extension
if (fileName.lastIndexOf('.') != -1) {
// check what content types are associated with current extension
IContentType[] types = Platform.getContentTypeManager().findContentTypesFor(fileName);
int i = 0;
while (i < types.length && !valid) {
valid = types[i].isKindOf(type);
++i;
}
}
else
valid = true; // no extension so valid
return valid;
}
/**
* Returns the project that contains the specified path
*
* @param path
* the path which project is needed
* @return IProject object. If path is <code>null</code> the return
* value is also <code>null</code>.
*/
private IProject getProjectFromPath(IPath path) {
IWorkspace workspace = ResourcesPlugin.getWorkspace();
IProject project = null;
if (path != null) {
if (workspace.validatePath(path.toString(), IResource.PROJECT).isOK()) {
project = workspace.getRoot().getProject(path.toString());
}
else {
project = workspace.getRoot().getFile(path).getProject();
}
}
return project;
}
/**
* Checks if the specified project is a web project.
*
* @param project
* project to be checked
* @return true if the project is web project, otherwise false
*/
boolean isDynamicWebProject(IProject project) {
boolean is = FacetModuleCoreSupport.isDynamicWebProject(project);
return is;
}
/**
* Checks if the specified project is a type of java project.
*
* @param project
* project to be checked (cannot be null)
* @return true if the project is a type of java project, otherwise false
*/
private boolean isJavaProject(IProject project) {
boolean isJava = false;
try {
isJava = project.hasNature(JavaCore.NATURE_ID);
}
catch (CoreException e) {
Logger.log(Logger.WARNING_DEBUG, e.getMessage(), e);
}
return isJava;
}
/**
* Returns the web contents folder of the specified project
*
* @param project
* the project which web contents path is needed
* @return IPath of the web contents folder
*/
private IPath getWebContentPath(IProject project) {
IPath path = FacetModuleCoreSupport.getWebContentRootPath(project);
return path;
}
}