| /******************************************************************************* |
| * 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 java.util.ArrayList; |
| import java.util.List; |
| |
| import org.eclipse.core.runtime.IStatus; |
| import org.eclipse.jface.viewers.ISelection; |
| import org.w3c.dom.Element; |
| import org.w3c.dom.Node; |
| |
| import org.eclipse.jst.pagedesigner.commands.DesignerCommand; |
| import org.eclipse.jst.pagedesigner.jsf.core.dom.JSFDOMUtil; |
| import org.eclipse.jst.pagedesigner.jsf.ui.JSFUIPlugin; |
| import org.eclipse.jst.pagedesigner.utils.DOMUtil; |
| import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer; |
| |
| /** |
| * This is for delete a column in panelGrid |
| * |
| * @author mengbo |
| * @version 1.5 |
| */ |
| public class PanelGridDeleteColumnCommand extends DesignerCommand |
| { |
| |
| private int _columnIndex; |
| private Element _panelGridEle; |
| |
| /** |
| * @param viewer |
| * @param panelGrid |
| * @param columnIndex |
| */ |
| public PanelGridDeleteColumnCommand(IHTMLGraphicalViewer viewer, Element panelGrid, int columnIndex) |
| { |
| super(CommandResources.getString("PanelGridDeleteColumnCommand.Label.DeleteColumn"), viewer); //$NON-NLS-1$ |
| this._panelGridEle = panelGrid; |
| this._columnIndex = columnIndex; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.gef.commands.Command#canExecute() |
| */ |
| public boolean canExecute() |
| { |
| //if user chose header or footer,then disable the delete column action |
| if (this._columnIndex < 0) |
| { |
| return false; |
| } |
| int columns = DOMUtil.getIntAttributeIgnoreCase(_panelGridEle, "columns", 1); //$NON-NLS-1$ |
| if (columns < 1) |
| { |
| columns = 1; |
| } |
| return columns > 1; |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#doExecute() |
| */ |
| protected void doExecute() |
| { |
| int columns = DOMUtil.getIntAttributeIgnoreCase(_panelGridEle, "columns", 1); //$NON-NLS-1$ |
| if (columns < 1) |
| { |
| columns = 1; |
| } |
| |
| if (_columnIndex >= columns) |
| { |
| JSFUIPlugin.log(IStatus.ERROR, "Should not happen", new Throwable()); |
| return; |
| } |
| List children = JSFDOMUtil.getUIComponentChildren(_panelGridEle); |
| List toRemove = new ArrayList(); |
| for (int i = _columnIndex; i < children.size(); i += columns) |
| { |
| toRemove.add(children.get(i)); |
| } |
| for (int i = 0, size = toRemove.size(); i < size; i++) |
| { |
| _panelGridEle.removeChild((Node) toRemove.get(i)); |
| } |
| |
| _panelGridEle.setAttribute("columns", String.valueOf(columns - 1)); //$NON-NLS-1$ |
| formatNode(_panelGridEle); |
| } |
| |
| /* (non-Javadoc) |
| * @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#getAfterCommandDesignerSelection() |
| */ |
| protected ISelection getAfterCommandDesignerSelection() |
| { |
| return toDesignSelection(this._panelGridEle); |
| } |
| } |