/*******************************************************************************
* 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.elementedit;
import org.eclipse.gef.EditPartViewer;
import org.eclipse.jface.action.IMenuManager;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jst.jsf.common.dom.TagIdentifier;
import org.eclipse.jst.jsf.core.internal.tld.CMUtil;
import org.eclipse.jst.jsf.core.internal.tld.TagIdentifierFactory;
import org.eclipse.jst.pagedesigner.editors.palette.IDropSourceData;
import org.eclipse.jst.pagedesigner.editors.palette.ITagDropSourceData;
import org.eclipse.jst.pagedesigner.itemcreation.ITagCreator;
import org.eclipse.jst.pagedesigner.itemcreation.customizer.AbstractDropCustomizer;
import org.eclipse.jst.pagedesigner.itemcreation.customizer.IDropCustomizer;
import org.eclipse.jst.pagedesigner.parts.ElementEditPart;
import org.eclipse.jst.pagedesigner.parts.NodeEditPart;
import org.eclipse.jst.pagedesigner.viewer.IDropLocationStrategy;
import org.eclipse.wst.xml.core.internal.contentmodel.CMElementDeclaration;
import org.w3c.dom.Element;
/**
* <p><b>Provisional API - subject to change</b></p>
* @author mengbo
* @version 1.5
*/
// TODO: should this be abstract?
public class AbstractElementEdit implements IElementEdit {
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.elementedit.IElementEdit#createEditPolicies(org.eclipse.jst.pagedesigner.parts.ElementEditPart)
*/
public void createEditPolicies(ElementEditPart part) {
// do nothing; sub-classes should override to add edit policies a part
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.elementedit.IElementEdit#handleModelChange(org.w3c.dom.Element,
* org.eclipse.jst.pagedesigner.parts.ElementEditPart)
*/
public boolean handleModelChange(Element ele, ElementEditPart part,
boolean recursive) {
return false;
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.elementedit.IElementEdit#fillContextMenu(org.eclipse.jface.action.IMenuManager,
* org.w3c.dom.Element)
*/
public void fillContextMenu(IMenuManager contextMenu, Element ele) {
// default do nothing, child class could override.
}
/*
* (non-Javadoc)
*
* @see org.eclipse.jst.pagedesigner.elementedit.IElementEdit#fillContainerContextMenu(org.eclipse.jface.action.IMenuManager,
* org.eclipse.jst.pagedesigner.parts.ElementEditPart,
* org.eclipse.jst.pagedesigner.parts.NodeEditPart,
* org.eclipse.jface.viewers.ISelection)
*/
public boolean fillContainerContextMenu(IMenuManager contextMenu,
ElementEditPart elePart, NodeEditPart nodePart,
ISelection innerSelection) {
return false;
}
/**
* Child class should override this method if they have different way for
* resizing. e.g. DataWindow use "width/height" attribute, not "style".
* Also, the default ResizeCommand will adjust "style", so if child class
* override this method, they should also use different command.
*
* @see org.eclipse.jst.pagedesigner.editpolicies.ElementResizableEditPolicy#getResizeCommand(org.eclipse.gef.requests.ChangeBoundsRequest)
*/
public boolean isResizable(Element ele) {
CMElementDeclaration decl = CMUtil.getElementDeclaration(ele);
if (decl != null) {
// XXX: default implementation, if this element support "style"
// attribute,
// then we think it support resize.
return decl.getAttributes().getNamedItem("style") != null; //$NON-NLS-1$
}
return true;
}
/**
* By default, return null to signal caller should use its default strategy
*/
public IDropLocationStrategy getDropRequestorLocationStrategy(TagIdentifier tag, EditPartViewer viewer) {
return null;
}
private final static IDropCustomizer DEFAULT_DROP_CUSTOMIZER =
new AbstractDropCustomizer(){/* do nothing; use defaults */};
/** (non-Javadoc)
* @see org.eclipse.jst.pagedesigner.elementedit.IElementEdit#getDropCustomizer(org.eclipse.jst.jsf.common.dom.TagIdentifier)
* @deprecated use getDropCustomizer(IDropSourceData) instead.
*/
public IDropCustomizer getDropCustomizer(TagIdentifier tagId)
{
return DEFAULT_DROP_CUSTOMIZER;
}
public IDropCustomizer getDropCustomizer(IDropSourceData dropSourceData)
{
if (dropSourceData instanceof ITagDropSourceData)
{
final String uri = ((ITagDropSourceData)dropSourceData).getNamespace();
final String tagName = ((ITagDropSourceData)dropSourceData).getTagName();
final TagIdentifier tagId = TagIdentifierFactory.createJSPTagWrapper(uri, tagName);
return getDropCustomizer(tagId);
}
return DEFAULT_DROP_CUSTOMIZER;
}
/* (non-Javadoc)
* @see org.eclipse.jst.pagedesigner.elementedit.IElementEdit#getTagCreator(org.eclipse.jst.jsf.common.dom.TagIdentifier)
*/
public ITagCreator getTagCreator(TagIdentifier tagId)
{
return null;
}
}