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/*****************************************************************************
* Copyright (c) 2010, 2015 LIFL, CEA LIST, Christian W. Damus, 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:
* Cedric Dumoulin (LIFL) cedric.dumoulin@lifl.fr - Initial API and implementation
* Christian W. Damus (CEA) - bug 433371
* Christian W. Damus - bug 469188
*
*****************************************************************************/
package org.eclipse.papyrus.infra.core.sasheditor.di.contentprovider.utils;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.papyrus.infra.core.sasheditor.editor.ICloseablePart;
import org.eclipse.papyrus.infra.core.sasheditor.editor.IPage;
import org.eclipse.papyrus.infra.core.sasheditor.editor.ISashWindowsContainer;
import org.eclipse.papyrus.infra.core.sashwindows.di.PageRef;
/**
* Class providing a utility methods allowing to get the real Model from the {@link IPage#getRawModel()}.
* The utility takes into account the bug 309943.
*
* @author cedric dumoulin
*
*/
public class IPageUtils {
/**
* Get the real model rather than the PageRef. This method is a trick to temporally solve the bug 309943.
*
* @param page
* @return
*/
public static Object getRawModel(IPage page) {
if (page == null) {
return null;
}
Object pageModel = page.getRawModel();
// Get the real model because of bug
if (pageModel instanceof PageRef) {
return ((PageRef) pageModel).getPageIdentifier();
}
// do not use trick
return pageModel;
}
/**
* Lookup the IPage model corresponding to the identifier from the {@link ISashWindowsContainer}.
* The identifier can be either a {@link PageRef} or a emf Diagram. <br>
* This method can be used as a hack to bug 401107
*
* @param container
* @param identifier
* @return The corresponding IPage, or null if not found.
*/
public static IPage lookupModelPage(ISashWindowsContainer container, Object identifier) {
LookupIPageVisitor visitor = new LookupIPageVisitor(identifier);
container.visit(visitor);
return visitor.getResult();
}
/**
* Queries whether the user should be permitted to close a {@code page}.
*
* @param page
* a page
* @return whether it can be closed
*/
public static boolean canClose(IPage page) {
ICloseablePart closeable = (page instanceof IAdaptable)
? ((IAdaptable) page).getAdapter(ICloseablePart.class)
: null;
return (closeable == null) || closeable.canClose();
}
}
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