package org.eclipse.ui.internal.views.markers;
/*******************************************************************************
* Copyright (c) 2007, 2015 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
* Andrey Loskutov <loskutov@gmx.de> - generified interface, bug 461762
*******************************************************************************/
import org.eclipse.core.resources.IMarker;
import org.eclipse.core.runtime.IAdapterFactory;
import org.eclipse.help.HelpSystem;
import org.eclipse.help.IContext;
import org.eclipse.help.IContextProvider;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.ide.IDE;
/**
* MarkerHelpAdapterFactory is the adapter factory for the markerHelp.
* @since 3.4
*
*/
public class MarkerHelpAdapterFactory implements IAdapterFactory {
private static final Class<?>[] classes = new Class[] { IContextProvider.class };
@Override
public <T> T getAdapter(Object adaptableObject, Class<T> adapterType) {
if (!(adaptableObject instanceof ExtendedMarkersView)) {
return null;
}
final ExtendedMarkersView view = (ExtendedMarkersView) adaptableObject;
return adapterType.cast(new IContextProvider() {
@Override
public int getContextChangeMask() {
return SELECTION;
}
@Override
public IContext getContext(Object target) {
String contextId = null;
// See if there is a context registered for the current selection
IMarker[] markers = view.getSelectedMarkers();
if(markers.length > 0) {
contextId = IDE.getMarkerHelpRegistry().getHelp(markers[0]);
}
//TODO this needs to be migrated to the ide plug-in
if (contextId == null) {
contextId = PlatformUI.PLUGIN_ID + ".problem_view_context";//$NON-NLS-1$
}
return HelpSystem.getContext(contextId);
}
@Override
public String getSearchExpression(Object target) {
return null;
}
});
}
@Override
public Class<?>[] getAdapterList() {
return classes;
}
}