| /******************************************************************************* |
| * Copyright (c) 2006 Sybase, Inc. 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: |
| * Sybase, Inc. - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jst.pagedesigner.actions.range; |
| |
| import org.eclipse.core.runtime.Assert; |
| import org.eclipse.gef.commands.Command; |
| import org.eclipse.jface.resource.ImageDescriptor; |
| import org.eclipse.jst.pagedesigner.commands.range.Paragraph; |
| import org.eclipse.jst.pagedesigner.commands.range.ParagraphApplyStyleCommand; |
| import org.eclipse.jst.pagedesigner.commands.range.ParagraphFinder; |
| import org.eclipse.jst.pagedesigner.dom.DOMRange; |
| import org.eclipse.jst.pagedesigner.dom.EditModelQuery; |
| import org.eclipse.jst.pagedesigner.dom.IDOMPosition; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * @author mengbo |
| */ |
| public class ParagraphStyleAction extends DesignerToolBarAction { |
| private String _tagName; |
| |
| private Node _applyingNode; |
| |
| /** |
| * @param text |
| * @param name |
| * @param image |
| * @param style |
| */ |
| public ParagraphStyleAction(String text, String name, |
| ImageDescriptor image, int style) { |
| super(text, style); |
| _tagName = name; |
| setImageDescriptor(image); |
| } |
| |
| /** |
| * @param text |
| * @param node |
| * @param image |
| * @param style |
| */ |
| public ParagraphStyleAction(String text, Node node, ImageDescriptor image, |
| int style) { |
| super(text, style); |
| _applyingNode = node; |
| setImageDescriptor(image); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.editors.actions.DesignerToolBarAction#isApplied(org.eclipse.jst.pagedesigner.dom.DOMRange) |
| */ |
| protected boolean isApplied(DOMRange range) { |
| Assert.isTrue(getExpectedTag() != null); |
| if (range != null) { |
| boolean ordered = range.isOrdered(); |
| IDOMPosition start = ordered ? range.getStartPosition() : range |
| .getEndPosition(); |
| IDOMPosition end = ordered ? range.getEndPosition() : range |
| .getStartPosition(); |
| Node common = null; |
| if (EditModelQuery.isSame(range)) { |
| ParagraphFinder finder = new ParagraphFinder(start); |
| Paragraph p = finder.getParagraph(start); |
| common = p.getLowestContainer(); |
| } else { |
| common = EditModelQuery.getInstance().getCommonAncestor(start, |
| end); |
| } |
| // the lowest common block parent is the container to apply style. |
| if (containsTag(common)) { |
| return true; |
| } |
| return false; |
| } |
| return false; |
| } |
| |
| /** |
| * @param common |
| * @return ??? |
| */ |
| protected boolean containsTag(Node common) { |
| // the lowest common block parent is the container to apply style. |
| if (_applyingNode == null) { |
| return common.getNodeName() != null |
| && getExpectedTag().equalsIgnoreCase( |
| common.getNodeName().toLowerCase()); |
| } |
| |
| String align = ((Element) _applyingNode).getAttribute("align"); |
| if (!(common instanceof Element)) { |
| return false; |
| } |
| String cAlign = ((Element) common).getAttribute("align"); |
| if (align == null || cAlign == null) { |
| return false; |
| } |
| if (align.equals(cAlign)) { |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * @return Returns the _expectedTag. |
| */ |
| public String getExpectedTag() { |
| if (_tagName == null) { |
| return _applyingNode.getNodeName().toLowerCase(); |
| } |
| return _tagName.toLowerCase(); |
| } |
| |
| /** |
| * @return Returns the _applyingNode. |
| */ |
| public Element getApplyingNode() { |
| if (_applyingNode != null) { |
| return (Element) _applyingNode; |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.commands.range.DesignerToolBarAction#getCommand() |
| */ |
| protected Command getCommand() { |
| ParagraphApplyStyleCommand command = null; |
| if (getApplyingNode() != null) { |
| command = new ParagraphApplyStyleCommand(getViewer(), |
| getApplyingNode(), null, null); |
| } else { |
| command = new ParagraphApplyStyleCommand(getViewer(), |
| getExpectedTag(), null, null); |
| } |
| return command; |
| } |
| } |