| /******************************************************************************* |
| * 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.DOMRange; |
| import org.eclipse.jst.pagedesigner.dom.DOMUtil; |
| import org.eclipse.jst.pagedesigner.dom.IDOMPosition; |
| import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.Text; |
| |
| /** |
| * @author mengbo |
| */ |
| public class UnapplyStyleCommand extends ApplyStyleCommand { |
| /** |
| * @param viewer |
| * @param tag |
| * @param property |
| * @param value |
| */ |
| public UnapplyStyleCommand(IHTMLGraphicalViewer viewer, String tag, |
| String property, String value) { |
| super(viewer, tag, property, value); |
| } |
| |
| /** |
| * @param viewer |
| * @param node |
| * @param property |
| * @param value |
| */ |
| public UnapplyStyleCommand(IHTMLGraphicalViewer viewer, Element node, |
| String property, String value) { |
| super(viewer, node, property, value); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.jst.pagedesigner.commands.range.RangeModeCommand#doRangeExecute(org.eclipse.jst.pagedesigner.dom.DOMRange) |
| */ |
| protected DOMRange doRangeExecute(DOMRange range) { |
| if (range == null || range.isEmpty()) { |
| return null; |
| } |
| |
| boolean ordered = range.isOrdered(); |
| IDOMPosition start = ordered ? range.getStartPosition() : range |
| .getEndPosition(); |
| IDOMPosition end = ordered ? range.getEndPosition() : range |
| .getStartPosition(); |
| |
| Node common = DOMUtil.findCommonAncester(start.getContainerNode(), end |
| .getContainerNode()); |
| if (common == null) { |
| // should not happen. |
| return null; |
| } |
| |
| if (common instanceof Text) { |
| doTextNodeStyleApply((Text) common, start.getOffset(), end |
| .getOffset()); |
| } |
| |
| return null; |
| } |
| |
| /** |
| * @param start |
| * @param end |
| * @param common |
| */ |
| private DOMRange doTextNodeStyleApply(Text textNode, int startOffset, |
| int endOffset) { |
| return null; |
| } |
| } |