AbstractTextHover.java

/*******************************************************************************
 * Copyright (c) 2000, 2008 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
 *     Brock Janiczak <brockj@tpg.com.au> - [implementation] Streams not being closed in Javadoc views - https://bugs.eclipse.org/bugs/show_bug.cgi?id=214854
 *******************************************************************************/
package org.eclipse.imp.editor.hover;



import org.eclipse.imp.editor.UniversalEditor;
import org.eclipse.jface.text.DefaultInformationControl;
import org.eclipse.jface.text.IInformationControl;
import org.eclipse.jface.text.IInformationControlCreator;
import org.eclipse.jface.text.IRegion;
import org.eclipse.jface.text.ITextHover;
import org.eclipse.jface.text.ITextHoverExtension;
import org.eclipse.jface.text.ITextHoverExtension2;
import org.eclipse.jface.text.ITextViewer;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.ui.editors.text.EditorsUI;



/**
 * Abstract class for providing hover information for Java elements.
 *
 * @since 2.1
 */
public abstract class AbstractTextHover implements ITextHover, ITextHoverExtension, ITextHoverExtension2 {
	private UniversalEditor fEditor;

	/*
	 * @see IJavaEditorTextHover#setEditor(IEditorPart)
	 */
	public void setEditor(UniversalEditor editor) {
		fEditor= editor;
	}

	protected UniversalEditor getEditor() {
		return fEditor;
	}

	
    /*
	 * @see org.eclipse.jface.text.ITextHoverExtension2#getHoverInfo2(org.eclipse.jface.text.ITextViewer, org.eclipse.jface.text.IRegion)
	 * @since 3.4
	 */
	@SuppressWarnings("deprecation")
	public Object getHoverInfo2(ITextViewer textViewer, IRegion hoverRegion) {
		return getHoverInfo(textViewer, hoverRegion);
	}

	/*
	 * @see ITextHover#getHoverRegion(ITextViewer, int)
	 */
	public IRegion getHoverRegion(ITextViewer textViewer, int offset) {
		//return JavaWordFinder.findWord(textViewer.getDocument(), offset);
		return null;
	}

	/*
	 * @see ITextHoverExtension#getHoverControlCreator()
	 * @since 3.0
	 */
	public IInformationControlCreator getHoverControlCreator() {
		return new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell parent) {
				return new DefaultInformationControl(parent, EditorsUI.getTooltipAffordanceString());
			}
		};
	}

	/*
	 * @see org.eclipse.jface.text.ITextHoverExtension2#getInformationPresenterControlCreator()
	 * @since 3.4
	 */
	public IInformationControlCreator getInformationPresenterControlCreator() {
		return new IInformationControlCreator() {
			public IInformationControl createInformationControl(Shell shell) {
				return new DefaultInformationControl(shell, true);
			}
		};
	}
}