| /******************************************************************************* |
| * Copyright (c) 2004, 2010 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.html.ui.internal.HTMLUIPlugin; |
| import org.eclipse.wst.html.ui.internal.preferences.HTMLUIPreferenceNames; |
| 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.IDOMElement; |
| import org.eclipse.wst.xml.core.internal.provisional.document.IDOMNode; |
| import org.w3c.dom.Node; |
| |
| public class StructuredAutoEditStrategyJSP 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 { |
| model = StructuredModelManager.getModelManager().getExistingModelForRead(document); |
| |
| if (model != null) { |
| if (command.text != null) { |
| smartInsertForEndTag(command, document, model); |
| |
| if (command.text.equals("%") && isPreferenceEnabled(JSPUIPreferenceNames.TYPING_COMPLETE_SCRIPTLETS)) { //$NON-NLS-1$ |
| // scriptlet - add end %> |
| IDOMNode node = (IDOMNode) model.getIndexedRegion(command.offset); |
| if (node != null && prefixedWith(document, command.offset, "<") && !node.getSource().endsWith("%>")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| command.text += " %>"; //$NON-NLS-1$ |
| command.shiftsCaret = false; |
| command.caretOffset = command.offset + 1; |
| command.doit = false; |
| } |
| } |
| if (command.text.equals("{") && isPreferenceEnabled(JSPUIPreferenceNames.TYPING_COMPLETE_EL_BRACES)) { //$NON-NLS-1$ |
| IDOMNode node = (IDOMNode) model.getIndexedRegion(command.offset); |
| if (node != null && (prefixedWith(document, command.offset, "$") || prefixedWith(document, command.offset, "#")) && //$NON-NLS-1$ //$NON-NLS-2$ |
| !node.getSource().endsWith("}")) { //$NON-NLS-1$ //$NON-NLS-2$ |
| command.text += " }"; //$NON-NLS-1$ |
| command.shiftsCaret = false; |
| command.caretOffset = command.offset + 1; |
| command.doit = false; |
| } |
| } |
| } |
| } |
| } |
| 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; |
| } |
| } |
| |
| private boolean isCommentNode(IDOMNode node) { |
| return ((node != null) && (node instanceof IDOMElement) && ((IDOMElement) node).isCommentTag()); |
| } |
| |
| private boolean isDocumentNode(IDOMNode node) { |
| return ((node != null) && (node.getNodeType() == Node.DOCUMENT_NODE)); |
| } |
| |
| private void smartInsertForEndTag(DocumentCommand command, IDocument document, IStructuredModel model) { |
| try { |
| if (command.text.equals("/") && (document.getLength() >= 1) && document.get(command.offset - 1, 1).equals("<") && HTMLUIPlugin.getDefault().getPreferenceStore().getBoolean(HTMLUIPreferenceNames.TYPING_COMPLETE_END_TAGS)) { //$NON-NLS-1$ //$NON-NLS-2$ |
| IDOMNode parentNode = (IDOMNode) ((IDOMNode) model.getIndexedRegion(command.offset - 1)).getParentNode(); |
| if (isCommentNode(parentNode)) { |
| // loop and find non comment node parent |
| while ((parentNode != null) && isCommentNode(parentNode)) { |
| parentNode = (IDOMNode) parentNode.getParentNode(); |
| } |
| } |
| |
| if (!isDocumentNode(parentNode)) { |
| // only add end tag if one does not already exist or if |
| // add '/' does not create one already |
| IStructuredDocumentRegion endTagStructuredDocumentRegion = parentNode.getEndStructuredDocumentRegion(); |
| IDOMNode ancestor = parentNode; |
| boolean smartInsertForEnd = false; |
| if(endTagStructuredDocumentRegion != null) { |
| // Look for ancestors by the same name that are missing end tags |
| while((ancestor = (IDOMNode) ancestor.getParentNode()) != null) { |
| if(ancestor.getEndStructuredDocumentRegion() == null && parentNode.getNodeName().equals(ancestor.getNodeName())) { |
| smartInsertForEnd = true; |
| break; |
| } |
| } |
| } |
| if (endTagStructuredDocumentRegion == null || smartInsertForEnd) { |
| StringBuffer toAdd = new StringBuffer(parentNode.getNodeName()); |
| if (toAdd.length() > 0) { |
| toAdd.append(">"); //$NON-NLS-1$ |
| String suffix = toAdd.toString(); |
| if ((document.getLength() < command.offset + suffix.length()) || (!suffix.equals(document.get(command.offset, suffix.length())))) { |
| command.text += suffix; |
| } |
| } |
| } |
| } |
| } |
| } |
| catch (BadLocationException e) { |
| Logger.logException(e); |
| } |
| } |
| } |