| /******************************************************************************* |
| * 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.commands.range; |
| |
| import org.eclipse.jst.pagedesigner.dom.DOMPositionHelper; |
| import org.eclipse.jst.pagedesigner.dom.DOMRange; |
| import org.eclipse.jst.pagedesigner.dom.EditModelQuery; |
| import org.eclipse.jst.pagedesigner.dom.IDOMPosition; |
| import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| /** |
| * @author mengbo |
| */ |
| public class ParagraphUnapplyStyleCommand extends ApplyStyleCommand { |
| private String _groupTags[]; |
| |
| /** |
| * @param viewer |
| * @param tags |
| * @param property |
| * @param value |
| */ |
| public ParagraphUnapplyStyleCommand(IHTMLGraphicalViewer viewer, |
| String[] tags, String property, String value) { |
| super(viewer, "", property, value); //$NON-NLS-1$ |
| _groupTags = tags; |
| } |
| |
| /** |
| * @param viewer |
| * @param node |
| * @param property |
| * @param value |
| */ |
| public ParagraphUnapplyStyleCommand(IHTMLGraphicalViewer viewer, |
| Element node, String property, String value) { |
| super(viewer, node, property, value); |
| } |
| |
| private DOMRange removeExistingStyles(IDOMPosition start, IDOMPosition end) { |
| Node common = null; |
| if (EditModelQuery.isSame(start, end)) { |
| ParagraphFinder finder = new ParagraphFinder(start); |
| Paragraph p = finder.getParagraph(start); |
| start = p.getStart(); |
| end = p.getEnd(); |
| common = p.getLowestContainer(); |
| } else { |
| common = EditModelQuery.getInstance().getCommonAncestor(start, end); |
| } |
| // Here we insert some code to avoid creating tags duplicated. but these |
| // are not the entire cases. |
| // if (Arrays.asList(_groupTags).contains(common.getNodeName())) |
| if (EditModelQuery.containItem(_groupTags, common, true)) { |
| start = DOMPositionHelper.toDOMRefPosition(start); |
| end = DOMPositionHelper.toDOMRefPosition(end); |
| Node parent = common.getParentNode(); |
| EditModelQuery.copyChildren(common, parent); |
| common.getParentNode().removeChild(common); |
| return new DOMRange(start, end); |
| } |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.commands.range.RangeModeCommand#doRangeExecute(org.eclipse.jst.pagedesigner.dom.DOMRange) |
| */ |
| protected DOMRange doRangeExecute(DOMRange range) { |
| return removeExistingStyles(range.getStartPosition(), range |
| .getEndPosition()); |
| } |
| } |