| /******************************************************************************* |
| * Copyright (c) 2000, 2005 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.jdt.internal.ui.propertiesfileeditor; |
| |
| import org.eclipse.core.runtime.CoreException; |
| import org.eclipse.core.runtime.Platform; |
| import org.eclipse.core.runtime.content.IContentDescription; |
| import org.eclipse.core.runtime.content.IContentType; |
| |
| import org.eclipse.core.resources.IFile; |
| |
| import org.eclipse.jface.text.IDocument; |
| |
| import org.eclipse.ui.editors.text.ForwardingDocumentProvider; |
| import org.eclipse.ui.editors.text.TextFileDocumentProvider; |
| |
| import org.eclipse.ui.IFileEditorInput; |
| import org.eclipse.ui.texteditor.IDocumentProvider; |
| |
| |
| /** |
| * Shared properties file document provider specialized for Java properties files. |
| * |
| * @since 3.1 |
| */ |
| public class PropertiesFileDocumentProvider extends TextFileDocumentProvider { |
| |
| |
| private static final IContentType JAVA_PROPERTIES_FILE_CONTENT_TYPE= Platform.getContentTypeManager().getContentType("org.eclipse.jdt.core.javaProperties"); //$NON-NLS-1$ |
| |
| |
| /** |
| * Creates a new properties file document provider and |
| * sets up the parent chain. |
| */ |
| public PropertiesFileDocumentProvider() { |
| IDocumentProvider provider= new TextFileDocumentProvider(); |
| provider= new ForwardingDocumentProvider(IPropertiesFilePartitions.PROPERTIES_FILE_PARTITIONING, new PropertiesFileDocumentSetupParticipant(), provider); |
| setParentDocumentProvider(provider); |
| } |
| |
| /* |
| * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#createFileInfo(java.lang.Object) |
| */ |
| protected FileInfo createFileInfo(Object element) throws CoreException { |
| if (JAVA_PROPERTIES_FILE_CONTENT_TYPE == null || !(element instanceof IFileEditorInput)) |
| return null; |
| |
| IFileEditorInput input= (IFileEditorInput)element; |
| |
| IFile file= input.getFile(); |
| if (file == null) |
| return null; |
| |
| IContentDescription description= file.getContentDescription(); |
| if (description == null || description.getContentType() == null || !description.getContentType().isKindOf(JAVA_PROPERTIES_FILE_CONTENT_TYPE)) |
| return null; |
| |
| return super.createFileInfo(element); |
| } |
| |
| /* |
| * @see org.eclipse.ui.editors.text.TextFileDocumentProvider#createSaveOperation(java.lang.Object, org.eclipse.jface.text.IDocument, boolean) |
| * @since 3.1 |
| */ |
| protected DocumentProviderOperation createSaveOperation(final Object element, final IDocument document, final boolean overwrite) throws CoreException { |
| if (getFileInfo(element) == null) |
| return null; |
| |
| return super.createSaveOperation(element, document, overwrite); |
| } |
| } |