| /******************************************************************************* |
| * Copyright (c) 2006, 2007 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.pde.internal.ui.editor.cheatsheet.comp.details; |
| |
| import org.eclipse.jface.text.DocumentEvent; |
| import org.eclipse.jface.text.IDocument; |
| import org.eclipse.jface.text.IDocumentListener; |
| import org.eclipse.pde.internal.core.icheatsheet.comp.ICompCSIntro; |
| import org.eclipse.pde.internal.core.icheatsheet.comp.ICompCSModelFactory; |
| import org.eclipse.pde.internal.core.icheatsheet.comp.ICompCSTaskObject; |
| import org.eclipse.pde.internal.core.util.PDETextHelper; |
| |
| /** |
| * CompCSEnclosingTextModifyListener |
| * |
| */ |
| public class CompCSIntroductionTextListener implements IDocumentListener { |
| |
| private ICompCSTaskObject fDataTaskObject; |
| |
| private boolean fBlockEvents; |
| |
| /** |
| * |
| */ |
| public CompCSIntroductionTextListener() { |
| fDataTaskObject = null; |
| fBlockEvents = false; |
| } |
| |
| /** |
| * @param block |
| */ |
| public void setBlockEvents(boolean block) { |
| fBlockEvents = block; |
| } |
| |
| /** |
| * @return |
| */ |
| public boolean getBlockEvents() { |
| return fBlockEvents; |
| } |
| |
| /** |
| * @param object |
| */ |
| public void setData(ICompCSTaskObject object) { |
| // Set data |
| fDataTaskObject = object; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jface.text.IDocumentListener#documentAboutToBeChanged(org.eclipse.jface.text.DocumentEvent) |
| */ |
| public void documentAboutToBeChanged(DocumentEvent e) { |
| // NO-OP |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.swt.events.ModifyListener#modifyText(org.eclipse.swt.events.ModifyEvent) |
| */ |
| public void documentChanged(DocumentEvent event) { |
| // Check whether to handle this event |
| if (fBlockEvents) { |
| return; |
| } |
| // Ensure the task object is defined |
| if (fDataTaskObject == null) { |
| return; |
| } |
| // Get the text from the event |
| IDocument document = event.getDocument(); |
| if (document == null) { |
| return; |
| } |
| String text = document.get().trim(); |
| // Determine whether an introduction was specified |
| boolean hasText = PDETextHelper.isDefined(text); |
| if (hasText) { |
| // An introduction was specified, update accordingly |
| updateIntroductionText(text); |
| } else { |
| // No introduction was specified, remove any existing one |
| removeIntroductionText(text); |
| } |
| } |
| |
| /** |
| * @param text |
| */ |
| private void updateIntroductionText(String text) { |
| if (fDataTaskObject.getFieldIntro() == null) { |
| // Create a new introduction |
| addIntroductionText(text); |
| } else { |
| // Re-use the existing introduction |
| modifyIntroductionText(text); |
| } |
| } |
| |
| /** |
| * @param text |
| */ |
| private void addIntroductionText(String text) { |
| ICompCSModelFactory factory = |
| fDataTaskObject.getModel().getFactory(); |
| ICompCSIntro intro = factory.createCompCSIntro(fDataTaskObject); |
| intro.setFieldContent(text); |
| fDataTaskObject.setFieldIntro(intro); |
| } |
| |
| /** |
| * @param text |
| */ |
| private void modifyIntroductionText(String text) { |
| ICompCSIntro intro = fDataTaskObject.getFieldIntro(); |
| intro.setFieldContent(text); |
| } |
| |
| /** |
| * @param text |
| */ |
| private void removeIntroductionText(String text) { |
| ICompCSIntro intro = fDataTaskObject.getFieldIntro(); |
| if (intro != null) { |
| fDataTaskObject.setFieldIntro(null); |
| } |
| } |
| |
| } |