| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.jface.text.source; |
| |
| |
| |
| /** |
| * Provides the information to be displayed in a hover popup window which appears over the |
| * presentation area of annotations. |
| * <p> |
| * In order to provide backward compatibility for clients of <code>IAnnotationHover</code>, |
| * extension interfaces are used as a means of evolution. The following extension interfaces exist: |
| * </p> |
| * <ul> |
| * <li>{@link org.eclipse.jface.text.source.IAnnotationHoverExtension} since version 3.0 allowing a |
| * text hover to provide a creator for the hover control. This allows for sophisticated hovers in a |
| * way that information computed by the hover can be displayed in the best possible form.</li> |
| * <li>{@link org.eclipse.jface.text.source.IAnnotationHoverExtension2} since version 3.2 allowing a |
| * text hover to specify whether it handles mouse-wheel events itself.</li> |
| * </ul> |
| * <p> |
| * Clients may implement this interface. |
| * </p> |
| * |
| * @see org.eclipse.jface.text.source.IAnnotationHoverExtension |
| * @see org.eclipse.jface.text.source.IAnnotationHoverExtension2 |
| */ |
| public interface IAnnotationHover { |
| |
| /** |
| * Returns the text which should be presented in the a |
| * hover popup window. This information is requested based on |
| * the specified line number. |
| * |
| * @param sourceViewer the source viewer this hover is registered with |
| * @param lineNumber the line number for which information is requested |
| * @return the requested information or <code>null</code> if no such information exists |
| */ |
| String getHoverInfo(ISourceViewer sourceViewer, int lineNumber); |
| } |