| /******************************************************************************* |
| * 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.jface.resource.ImageDescriptor; |
| 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.editors.actions.ChangeStyleAction; |
| import org.eclipse.jst.pagedesigner.viewer.DesignRange; |
| import org.w3c.dom.Node; |
| |
| /** |
| * @author mengbo |
| */ |
| public class InsertTagChangeStyleAction extends ChangeStyleAction { |
| /** |
| * @param text |
| * @param image |
| * @param style |
| */ |
| public InsertTagChangeStyleAction(String text, String tag, |
| ImageDescriptor image, int style) { |
| super(text, tag, image, style); |
| } |
| |
| protected String getExpectedCSSProperty() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| protected String getExpectedCSSPropertyValue() { |
| // TODO Auto-generated method stub |
| return null; |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.texteditor.IUpdate#update() |
| */ |
| public void update() { |
| if (_viewer == null) { |
| this.setChecked(false); |
| this.setEnabled(false); |
| return; |
| } |
| if (!_viewer.isInRangeMode()) { |
| // XXX: later we may support in range mode. |
| this.setChecked(false); |
| this.setEnabled(false); |
| return; |
| } |
| DesignRange range = _viewer.getRangeSelection(); |
| if (range == null || !range.isValid()) { |
| this.setChecked(false); |
| this.setEnabled(false); |
| return; |
| } |
| setEnabled(range); |
| } |
| |
| /* |
| * (non-Javadoc) |
| * |
| * @see org.eclipse.ui.texteditor.IUpdate#update() |
| */ |
| public void setEnabled(DesignRange range) { |
| DOMRange domRange = null; |
| // We didn't deal with undo, so only enable is set. |
| domRange = new DOMRange(DOMPositionHelper.toDOMPosition(range |
| .getStartPosition()), DOMPositionHelper.toDOMPosition(range |
| .getEndPosition())); |
| if (canRun(domRange)) { |
| this.setEnabled(true); |
| } else { |
| this.setEnabled(false); |
| } |
| } |
| |
| private boolean canRun(DOMRange range) { |
| if (range != null) { |
| if (EditModelQuery.isSame(range) && !supportSingle()) { |
| return false; |
| } |
| boolean ordered = range.isOrdered(); |
| IDOMPosition start = ordered ? range.getStartPosition() : range |
| .getEndPosition(); |
| IDOMPosition end = ordered ? range.getEndPosition() : range |
| .getStartPosition(); |
| Node common = null; |
| common = EditModelQuery.getInstance().getCommonAncestor(start, end); |
| if (getExpectedTag() == null |
| || EditModelQuery.hasAncestor(common, getExpectedTag(), |
| true)) { |
| return false; |
| } |
| return true; |
| } |
| return false; |
| } |
| |
| protected boolean supportSingle() { |
| return false; |
| } |
| } |