bundles/org.eclipse.wst.jsdt.web.ui/src/org/eclipse/wst/jsdt/web/ui/internal/taginfo/JSDTInformationProvider.java

/*******************************************************************************
 * Copyright (c) 2006, 2007 IBM Corporation 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:
 *     IBM Corporation - initial API and implementation
 *     
 *******************************************************************************/
package org.eclipse.wst.jsdt.web.ui.internal.taginfo;

import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextHover;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.jface.text.information.IInformationProvider;
import org.eclipse.jface.text.information.IInformationProviderExtension;
import org.eclipse.wst.sse.ui.internal.SSEUIPlugin;

/**
*

* Provisional API: This class/interface is part of an interim API that is still under development and expected to
* change significantly before reaching stability. It is being made available at this early stage to solicit feedback
* from pioneering adopters on the understanding that any code that uses this API will almost certainly be broken
* (repeatedly) as the API evolves.
*/
public class JSDTInformationProvider implements IInformationProvider, IInformationProviderExtension {
	private ITextHover fTextHover = null;
	
	public JSDTInformationProvider() {
		fTextHover = SSEUIPlugin.getDefault().getTextHoverManager().createBestMatchHover(new JSDTHoverProcessor());
	}
	
	public String getInformation(ITextViewer textViewer, IRegion subject) {
		return (String) getInformation2(textViewer, subject);
	}
	
	public Object getInformation2(ITextViewer textViewer, IRegion subject) {
		return fTextHover.getHoverInfo(textViewer, subject);
	}
	
	public IRegion getSubject(ITextViewer textViewer, int offset) {
		return fTextHover.getHoverRegion(textViewer, offset);
	}
}