| /******************************************************************************* |
| * Copyright (c) 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.autoedit; |
| |
| import org.eclipse.jface.text.BadLocationException; |
| import org.eclipse.jface.text.DocumentCommand; |
| import org.eclipse.jface.text.IAutoEditStrategy; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jst.jsp.ui.internal.JSPUIPlugin; |
| import org.eclipse.jst.jsp.ui.internal.Logger; |
| import org.eclipse.jst.jsp.ui.internal.preferences.JSPUIPreferenceNames; |
| import org.eclipse.ui.IEditorPart; |
| import org.eclipse.ui.IWorkbenchPage; |
| import org.eclipse.ui.IWorkbenchWindow; |
| import org.eclipse.ui.PlatformUI; |
| import org.eclipse.ui.texteditor.ITextEditor; |
| import org.eclipse.ui.texteditor.ITextEditorExtension3; |
| import org.eclipse.wst.sse.core.StructuredModelManager; |
| import org.eclipse.wst.sse.core.internal.provisional.IStructuredModel; |
| import org.eclipse.wst.sse.core.internal.provisional.text.IStructuredDocumentRegion; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| |
| public class StructuredAutoEditStrategyJSPJava implements IAutoEditStrategy { |
| |
| public void customizeDocumentCommand(IDocument document, DocumentCommand command) { |
| Object textEditor = getActiveTextEditor(); |
| if (!(textEditor instanceof ITextEditorExtension3 && ((ITextEditorExtension3) textEditor).getInsertMode() == ITextEditorExtension3.SMART_INSERT)) |
| return; |
| |
| IStructuredModel model = null; |
| try { |
| // Auto edit for JSP Comments |
| if ("-".equals(command.text) && isPreferenceEnabled(JSPUIPreferenceNames.TYPING_COMPLETE_COMMENTS)) { //$NON-NLS-1$ |
| if (prefixedWith(document, command.offset, "<%-")) { //$NON-NLS-1$ |
| |
| model = StructuredModelManager.getModelManager().getExistingModelForRead(document); |
| if (model != null) { |
| IDOMNode node = (IDOMNode) model.getIndexedRegion(command.offset); |
| IDOMNode parent = (node != null) ? (IDOMNode) node.getParentNode() : null; |
| // Parent is the scriptlet tag |
| if (parent != null && !parent.getSource().endsWith("--%>")) { //$NON-NLS-1$ |
| IStructuredDocumentRegion end = parent.getEndStructuredDocumentRegion(); |
| if (end != null) { |
| try { |
| document.replace(end.getStartOffset(), 0, "--"); //$NON-NLS-1$ |
| } catch (BadLocationException e) { |
| Logger.logException(e); |
| } |
| } |
| } |
| } |
| } |
| } |
| } |
| finally { |
| if (model != null) |
| model.releaseFromRead(); |
| } |
| } |
| |
| private boolean isPreferenceEnabled(String key) { |
| return (key != null && JSPUIPlugin.getDefault().getPreferenceStore().getBoolean(key)); |
| } |
| |
| /** |
| * Return the active text editor if possible, otherwise the active editor |
| * part. |
| * |
| * @return |
| */ |
| private Object getActiveTextEditor() { |
| IWorkbenchWindow window = PlatformUI.getWorkbench().getActiveWorkbenchWindow(); |
| if (window != null) { |
| IWorkbenchPage page = window.getActivePage(); |
| if (page != null) { |
| IEditorPart editor = page.getActiveEditor(); |
| if (editor != null) { |
| if (editor instanceof ITextEditor) |
| return editor; |
| ITextEditor textEditor = (ITextEditor) editor.getAdapter(ITextEditor.class); |
| if (textEditor != null) |
| return textEditor; |
| return editor; |
| } |
| } |
| } |
| return null; |
| } |
| |
| private boolean prefixedWith(IDocument document, int offset, String string) { |
| |
| try { |
| return document.getLength() >= string.length() && document.get(offset - string.length(), string.length()).equals(string); |
| } |
| catch (BadLocationException e) { |
| Logger.logException(e); |
| return false; |
| } |
| } |
| |
| } |