| /******************************************************************************* |
| * 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.jsf.ui.commands.jsfhtml; |
| |
| import org.eclipse.jface.viewers.ISelection; |
| import org.eclipse.jst.pagedesigner.commands.DesignerCommand; |
| import org.eclipse.jst.pagedesigner.jsf.core.dom.JSFDOMUtil; |
| import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| import org.w3c.dom.NodeList; |
| |
| |
| /** |
| * Delete a column from dataTable. |
| * |
| * @author mengbo |
| * @version 1.5 |
| */ |
| public class DataTableDeleteColumnCommand extends DesignerCommand |
| { |
| |
| private Element _dataTable; |
| private int _index; |
| |
| /** |
| * @param viewer |
| * @param dataTable |
| * @param columnIndex |
| */ |
| public DataTableDeleteColumnCommand(IHTMLGraphicalViewer viewer, Element dataTable, int columnIndex) |
| { |
| super(CommandResources.getString("DataTableDeleteColumnCommand.Label.DeleteColumn"), viewer); //$NON-NLS-1$ |
| this._dataTable = dataTable; |
| this._index = columnIndex; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.gef.commands.Command#canExecute() |
| */ |
| public boolean canExecute() |
| { |
| if (this._index < 0) |
| { |
| return false; |
| } |
| return super.canExecute(); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#doExecute() |
| */ |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#doExecute() |
| */ |
| protected void doExecute() |
| { |
| NodeList children = _dataTable.getChildNodes(); |
| int index = 0; |
| for (int i = 0, size = children.getLength(); i < size; i++) |
| { |
| Node node = children.item(i); |
| if (JSFDOMUtil.isHColumn(node)) |
| { |
| if (index++ == this._index) |
| { |
| _dataTable.removeChild(node); |
| return; |
| } |
| } |
| } |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#getAfterCommandDesignerSelection() |
| */ |
| protected ISelection getAfterCommandDesignerSelection() |
| { |
| return toDesignSelection(_dataTable); |
| } |
| } |