/*******************************************************************************
* Copyright (c) 2007, 2009 Wind River Systems, Inc. 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:
* Markus Schorn - initial API and implementation
*******************************************************************************/
package org.eclipse.cdt.internal.ui.typehierarchy;
import org.eclipse.core.runtime.IAdaptable;
import org.eclipse.jface.text.ITextSelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.ui.IWorkbenchSite;
import org.eclipse.ui.texteditor.ITextEditor;
import org.eclipse.cdt.core.model.ICElement;
import org.eclipse.cdt.ui.CUIPlugin;
import org.eclipse.cdt.ui.actions.SelectionDispatchAction;
public class OpenTypeHierarchyAction extends SelectionDispatchAction {
private ITextEditor fEditor;
public OpenTypeHierarchyAction(IWorkbenchSite site) {
super(site);
setText(Messages.OpenTypeHierarchyAction_label);
setToolTipText(Messages.OpenTypeHierarchyAction_tooltip);
}
public OpenTypeHierarchyAction(ITextEditor editor) {
this(editor.getSite());
fEditor= editor;
setEnabled(fEditor != null && CUIPlugin.getDefault().getWorkingCopyManager().getWorkingCopy(editor.getEditorInput()) != null);
}
@Override
public void run(ITextSelection sel) {
TypeHierarchyUI.open(fEditor, sel);
}
@Override
public void run(IStructuredSelection selection) {
if (!selection.isEmpty()) {
Object selectedObject= selection.getFirstElement();
ICElement elem= (ICElement) getAdapter(selectedObject, ICElement.class);
if (elem != null) {
TypeHierarchyUI.open(elem, getSite().getWorkbenchWindow());
}
}
}
@Override
public void selectionChanged(ITextSelection sel) {
}
@Override
public void selectionChanged(IStructuredSelection selection) {
if (selection.isEmpty()) {
setEnabled(false);
return;
}
Object selectedObject= selection.getFirstElement();
ICElement elem= (ICElement) getAdapter(selectedObject, ICElement.class);
if (elem != null) {
setEnabled(TypeHierarchyUI.isValidInput(elem));
}
else {
setEnabled(false);
}
}
@SuppressWarnings("rawtypes")
private Object getAdapter(Object object, Class desiredClass) {
if (desiredClass.isInstance(object)) {
return object;
}
if (object instanceof IAdaptable) {
IAdaptable adaptable= (IAdaptable) object;
return adaptable.getAdapter(desiredClass);
}
return null;
}
}