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/*****************************************************************************
* Copyright (c) 2012 CEA LIST.
*
* 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:
* Camille Letavernier (CEA LIST) camille.letavernier@cea.fr - Initial API and implementation
*****************************************************************************/
package org.eclipse.papyrus.infra.gmfdiag.css.engine;
import java.net.MalformedURLException;
import java.net.URL;
import org.eclipse.e4.ui.css.core.dom.IElementProvider;
import org.eclipse.e4.ui.css.core.engine.CSSElementContext;
import org.eclipse.papyrus.infra.gmfdiag.common.handler.IRefreshHandlerPart;
import org.eclipse.papyrus.infra.gmfdiag.common.handler.RefreshHandler;
import org.eclipse.papyrus.infra.gmfdiag.css.Activator;
import org.eclipse.ui.IEditorPart;
import org.w3c.dom.Element;
/**
* The base CSS Engine. It contains the default stylesheet, which will be applied
* in all cases (With the lowest priority).
*
* It should not be used directly.
*
* @author Camille Letavernier
*
* @see DiagramCSSEngine
*/
@SuppressWarnings("restriction")
public class BaseCSSEngine extends ExtendedCSSEngineImpl implements IRefreshHandlerPart {
private BaseCSSEngine() {
RefreshHandler.register(this);
try {
styleSheetURLs.add(new URL("platform:/plugin/" + Activator.PLUGIN_ID + "/resources/base.css")); //$NON-NLS-1$ //$NON-NLS-2$
} catch (MalformedURLException ex) {
Activator.log.error(ex);
}
}
/**
* The Singleton instance of BaseCSSEngine
*/
public static final ExtendedCSSEngine INSTANCE = new BaseCSSEngine();
/**
* @see org.eclipse.papyrus.infra.gmfdiag.common.handler.IRefreshHandlerPart#refresh(org.eclipse.ui.IEditorPart)
*/
@Override
public void refresh(IEditorPart editorPart) {
// Resets this engine, regardless of the current editor
this.reset();
}
// Unsupported operations. The BaseCSSEngine should never be used directly.
@Override
public Element getElement(Object node) {
throw new UnsupportedOperationException();
}
@Override
public IElementProvider getElementProvider() {
throw new UnsupportedOperationException();
}
@Override
public void setElementProvider(IElementProvider elementProvider) {
throw new UnsupportedOperationException();
}
@Override
public CSSElementContext getCSSElementContext(Object node) {
throw new UnsupportedOperationException();
}
}
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