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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.actions.container;
import org.eclipse.gef.EditPart;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jst.pagedesigner.elementedit.IElementEdit;
import org.eclipse.jst.pagedesigner.parts.ElementEditPart;
import org.eclipse.jst.pagedesigner.parts.NodeEditPart;
import org.eclipse.jst.pagedesigner.range.RangeUtil;
import org.eclipse.jst.pagedesigner.viewer.DesignPosition;
import org.eclipse.jst.pagedesigner.viewer.DesignRange;
import org.eclipse.ui.actions.ActionGroup;
import org.w3c.dom.Text;
/**
* @author mengbo
* @version 1.5
*/
public class ContainerActionGroup extends ActionGroup {
/*
* (non-Javadoc)
*
* @see org.eclipse.ui.actions.ActionGroup#fillContextMenu(org.eclipse.jface.action.IMenuManager)
*/
public void fillContextMenu(IMenuManager menu) {
ISelection selection = this.getContext().getSelection();
EditPart part = findCommonAncesterPart(selection);
if (!(part instanceof NodeEditPart)) {
return;
}
NodeEditPart original = (NodeEditPart) part;
// start from the parent of part
while (part.getParent() instanceof ElementEditPart) {
ElementEditPart elementEditPart = (ElementEditPart) part
.getParent();
IElementEdit elementEdit = elementEditPart.getElementEdit();
if (elementEdit != null) {
boolean filled = elementEdit.fillContainerContextMenu(menu,
elementEditPart, original, selection);
if (filled) {
break;
}
}
part = part.getParent();
}
}
/**
* Give a selection, find a single common container node as start for table
* related operations.
*
* @param selection
* @return
*/
private EditPart findCommonAncesterPart(ISelection selection) {
if (selection instanceof IStructuredSelection) {
IStructuredSelection structsel = (IStructuredSelection) selection;
if (structsel.size() != 1) {
return null;
} else if (structsel.getFirstElement() instanceof EditPart) {
return (EditPart) structsel.getFirstElement();
} else {
return null;
}
} else if (selection instanceof DesignRange) {
DesignRange range = (DesignRange) selection;
if (!range.isValid()) {
return null;
}
if (range.isEmpty()) {
DesignPosition position = range.getStartPosition();
if (position.getOffset() == 0
|| position.getContainerNode() instanceof Text) {
return position.getContainerPart();
}
return position.getSiblingEditPart(false);
}
return RangeUtil.findCommonAncestor(range);
} else {
return null;
}
}
}
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