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/*******************************************************************************
* 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.html;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jst.pagedesigner.IHTMLConstants;
import org.eclipse.jst.pagedesigner.commands.CommandResources;
import org.eclipse.jst.pagedesigner.commands.DesignerCommand;
import org.eclipse.jst.pagedesigner.dom.html.TableUtil;
import org.eclipse.jst.pagedesigner.utils.DOMUtil;
import org.eclipse.jst.pagedesigner.viewer.IHTMLGraphicalViewer;
import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
/**
* @author mengbo
* @version 1.5
*/
public class TableInsertColumnCommand extends DesignerCommand {
private Element _tableEle;
private int _columnIndex;
private TableUtil _tableUtil;
/**
* @param viewer
* @param dataTable
* @param index
*/
public TableInsertColumnCommand(IHTMLGraphicalViewer viewer,
Element dataTable, int index) {
super(
CommandResources
.getString("TableInsertColumnCommand.Label.InsertColumn"), viewer); //$NON-NLS-1$
this._tableEle = dataTable;
this._columnIndex = index;
this._tableUtil = new TableUtil(this._tableEle);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.gef.commands.Command#canExecute()
*/
public boolean canExecute() {
if (this._columnIndex < 0) {
return false;
}
boolean isAffectedByColSpan = _tableUtil
.isAffectedByColSpan(this._columnIndex);
if (isAffectedByColSpan) {
return false;
}
return super.canExecute();
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#getAfterCommandDesignerSelection()
*/
protected ISelection getAfterCommandDesignerSelection() {
return toDesignSelection(_tableEle);
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.commands.DesignerCommand#doExecute()
*/
protected void doExecute() {
List trList = new ArrayList();
TableUtil.getTrElements(this._tableEle, trList);
List[] lists = _tableUtil.getTrCellLists();
int maxColumn = _tableUtil.getColumnCount();
boolean isAtLastColumn = false;
if (this._columnIndex >= maxColumn) {
isAtLastColumn = true;
}
for (int i = 0, size = trList.size(); i < size; i++) {
Element tr = (Element) trList.get(i);
boolean hasTH = (DOMUtil.getChildElementsByTagIgnoreCase(tr,
IHTMLConstants.TAG_TH).size() > 0);
List cells = lists[i];
if (isAtLastColumn || (cells.size() <= this._columnIndex)) {
int index = this._columnIndex + 1;
for (int k = cells.size(); k < index; k++) {
tr.appendChild(createDefaultElement(hasTH));
}
} else {
Element cell = (Element) cells.get(this._columnIndex);
if (!cell.getTagName().equalsIgnoreCase("fake")) //$NON-NLS-1$
{
tr.insertBefore(createDefaultElement(hasTH), cell);
} else {
boolean hasRealElement = false;
for (int k = _columnIndex + 1; k < cells.size(); k++) {
Element td = (Element) cells.get(k);
if (!td.getTagName().equalsIgnoreCase("fake")) //$NON-NLS-1$
{
hasRealElement = true;
tr.insertBefore(createDefaultElement(hasTH), td);
break;
}
}
if (!hasRealElement) {
tr.appendChild(createDefaultElement(hasTH));
}
}
}
}
formatNode(this._tableEle);
}
private Element createDefaultElement(boolean createTH) {
Document doc = this._tableEle.getOwnerDocument();
Element td = null;
if (createTH) {
td = doc.createElement(IHTMLConstants.TAG_TH);
} else {
td = doc.createElement(IHTMLConstants.TAG_TD);
}
Node node = doc.createTextNode(""); //$NON-NLS-1$
td.appendChild(node);
return td;
}
}
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