| /******************************************************************************* |
| * 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.pde.internal.ua.core.ctxhelp.text; |
| |
| import org.eclipse.pde.internal.core.text.IDocumentElementNode; |
| |
| /** |
| * Represents a context entry in context help. Contexts have a specific id that |
| * allows UI elements to be associated with a list of commands and topics that |
| * are stored in the context. Contexts may have one optional description element |
| * and as many topic and command elements as needed. |
| * |
| * @since 3.4 |
| * @see CtxHelpObject |
| * @see CtxHelpModel |
| * @see CtxHelpDocumentFactory |
| */ |
| public class CtxHelpContext extends CtxHelpObject { |
| |
| private static final long serialVersionUID = 1L; |
| |
| public CtxHelpContext(CtxHelpModel model) { |
| super(model, ELEMENT_CONTEXT); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.pde.internal.ua.core.ctxhelp.text.CtxHelpObject#canBeParent() |
| */ |
| public boolean canBeParent() { |
| return true; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.pde.internal.ua.core.ctxhelp.text.CtxHelpObject#getType() |
| */ |
| public int getType() { |
| return TYPE_CONTEXT; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.pde.internal.ua.core.ctxhelp.text.CtxHelpObject#getName() |
| */ |
| public String getName() { |
| return getId(); |
| } |
| |
| /** |
| * @return the value of the id attribute or <code>null</code> if the |
| * attribute does not exist |
| */ |
| public String getId() { |
| return getXMLAttributeValue(ATTRIBUTE_ID); |
| } |
| |
| /** |
| * Set the id attribute, passing <code>null</code> will set the attribute to |
| * be empty. |
| * |
| * @param id |
| * new value |
| */ |
| public void setID(String id) { |
| setXMLAttribute(ATTRIBUTE_ID, id); |
| } |
| |
| /** |
| * @return the value of the title attribute or <code>null</code> if the |
| * attribute does not exist |
| */ |
| public String getTitle() { |
| return getXMLAttributeValue(ATTRIBUTE_TITLE); |
| } |
| |
| /** |
| * Set the title attribute, passing <code>null</code> will set the attribute |
| * to be empty. |
| * |
| * @param title |
| * new value |
| */ |
| public void setTitle(String title) { |
| setXMLAttribute(ATTRIBUTE_TITLE, title); |
| } |
| |
| /** |
| * Searches for a child description node and returns the string contents of |
| * that node. Returns <code>null</code> if no description node exists. |
| * |
| * @return description associated with this context or <code>null</code> no |
| * description exists |
| */ |
| public String getDescription() { |
| IDocumentElementNode node = getChildNode(CtxHelpDescription.class); |
| if (node instanceof CtxHelpDescription) { |
| return ((CtxHelpDescription) node).getDescription(); |
| } |
| return null; |
| } |
| |
| /** |
| * Set the description to be associated with this context. Searches for a |
| * child description node and updates the content with the given string. If |
| * a description node does not exist, one will be created. Passing |
| * <code>null</code> will remove any description node if one exists. |
| * |
| * @param description |
| * new value |
| */ |
| public void setDescription(String description) { |
| IDocumentElementNode node = getChildNode(CtxHelpDescription.class); |
| if (node instanceof CtxHelpDescription) { |
| if (description == null) { |
| removeChildNode(node, true); |
| } else { |
| ((CtxHelpDescription) node).setDescription(description); |
| } |
| } else if (description != null) { |
| CtxHelpDescription newDescription = getModel().getFactory() |
| .createDescription(); |
| newDescription.setDescription(description); |
| addChildNode(newDescription, 0, true); |
| } |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.pde.internal.ua.core.ctxhelp.text.CtxHelpObject#canAddChild( |
| * org.eclipse.pde.internal.ua.core.ctxhelp.text.CtxHelpObject) |
| */ |
| public boolean canAddChild(int objectType) { |
| return objectType == TYPE_TOPIC || objectType == TYPE_COMMAND; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see |
| * org.eclipse.pde.internal.core.text.ctxhelp.CtxHelpObject#canAddSibling |
| * (int) |
| */ |
| public boolean canAddSibling(int objectType) { |
| return objectType == TYPE_CONTEXT; |
| } |
| |
| } |