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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.properties;
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.action.Action;
import org.eclipse.jface.action.IMenuCreator;
import org.eclipse.swt.SWT;
import org.eclipse.swt.events.SelectionAdapter;
import org.eclipse.swt.events.SelectionEvent;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Menu;
import org.eclipse.swt.widgets.MenuItem;
import org.w3c.dom.Document;
import org.w3c.dom.DocumentFragment;
import org.w3c.dom.Element;
import org.w3c.dom.Node;
import org.w3c.dom.Text;
/**
* @author mengbo
* @version 1.5
*/
public class NavigationHiearchyAction extends Action {
private Menu _hiearchyMenu;
private Node _startNode;
private Node _currentNode;
private DesignerTabbedPropertySheetPage _propertyPage;
private class MenuCreator implements IMenuCreator {
public void dispose() {
if (_hiearchyMenu != null) {
for (int i = 0, n = _hiearchyMenu.getItemCount(); i < n; i++) {
MenuItem menuItem = _hiearchyMenu.getItem(i);
menuItem.setData(null);
}
_hiearchyMenu.dispose();
_hiearchyMenu = null;
}
}
public Menu getMenu(Menu parent) {
return null;
}
public Menu getMenu(Control parent) {
dispose();
_hiearchyMenu = new Menu(parent);
// next we need to add the list of parents node into the menu.
Node node = _startNode;
List list = new ArrayList();
while (node != null && !(node instanceof Document)
&& !(node instanceof DocumentFragment)) {
list.add(node);
node = node.getParentNode();
}
// adding ancesters reverse order.
for (int i = list.size() - 1; i >= 0; i--) {
Node thenode = (Node) list.get(i);
MenuItem item = new MenuItem(_hiearchyMenu, SWT.CHECK);
item.setSelection(thenode == _currentNode ? true : false);
String text = thenode.getNodeName();
item.setText(text);
item.setData(thenode);
item.addSelectionListener(new SelectionAdapter() {
public void widgetSelected(SelectionEvent e) {
Node selectedNode = (Node) e.widget.getData();
_propertyPage.internalChangeSelection(selectedNode,
_startNode);
}
});
}
return _hiearchyMenu;
}
}
public NavigationHiearchyAction(DesignerTabbedPropertySheetPage propertyPage) {
super("");
setEnabled(true);
setMenuCreator(new MenuCreator());
this._propertyPage = propertyPage;
}
protected void changeSelection(Node selectedNode, Node startNode) {
this._propertyPage.internalChangeSelection(selectedNode, startNode);
this._currentNode = selectedNode;
this._startNode = startNode;
this.setText(this._currentNode.getNodeName());
}
protected void refresh(Node currentNode, Node startNode) {
this._currentNode = currentNode;
this._startNode = startNode;
if (!(_currentNode instanceof Text)
&& !(_currentNode instanceof Element)) {
this.setText("---");
this.setEnabled(false);
} else {
this.setText(_currentNode.getNodeName());
this.setEnabled(true);
}
}
/*
* (non-Javadoc) Method declared on IAction.
*/
public void run() {
this._propertyPage.internalChangeSelection(_currentNode, _startNode);
}
}
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