/*******************************************************************************
* Copyright (c) 2010 Standards for Technology in Automotive Retail 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:
* David Carver - initial API and implementation
*******************************************************************************/
package org.eclipse.wst.xml.ui.internal.views.contentmodel;
import org.eclipse.core.commands.Command;
import org.eclipse.core.commands.State;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.swt.SWT;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.ui.IEditorPart;
import org.eclipse.ui.IMemento;
import org.eclipse.ui.ISelectionListener;
import org.eclipse.ui.IViewSite;
import org.eclipse.ui.IWorkbenchPart;
import org.eclipse.ui.PartInitException;
import org.eclipse.ui.PlatformUI;
import org.eclipse.ui.commands.ICommandService;
import org.eclipse.ui.model.BaseWorkbenchContentProvider;
import org.eclipse.ui.model.WorkbenchLabelProvider;
import org.eclipse.ui.part.ViewPart;
import org.w3c.dom.Element;
public class ContentModelView extends ViewPart implements ISelectionListener {
private TreeViewer tv;
public void init(IViewSite site, IMemento memento) throws PartInitException {
super.init(site, memento);
getSite().getPage().addPostSelectionListener(this);
}
public void dispose() {
getSite().getPage().removePostSelectionListener(this);
super.dispose();
}
public void createPartControl(Composite parent) {
Tree tree = new Tree(parent, SWT.NONE);
tv = new TreeViewer(tree);
tv.setContentProvider(new BaseWorkbenchContentProvider());
tv.setLabelProvider(new WorkbenchLabelProvider());
}
public void setFocus() {
}
private IStructuredSelection currentSelection;
public void selectionChanged(IWorkbenchPart part, ISelection selection) {
IEditorPart edPart = getSite().getPage().getActiveEditor();
if (part.equals(edPart)) {
if (selection instanceof IStructuredSelection) {
currentSelection = (IStructuredSelection) selection;
if (!selection.isEmpty()
&& (currentSelection.getFirstElement() instanceof Element)) {
if (isLinkedWithEditor() && !currentSelection.getFirstElement().equals(tv.getInput())) {
tv.setInput(currentSelection.getFirstElement());
}
}
}
}
}
private boolean isLinkedWithEditor() {
ICommandService service = (ICommandService) PlatformUI.getWorkbench()
.getService(ICommandService.class);
Command command = service.getCommand("org.eclipse.wst.xml.ui.cmnd.contentmodel.sych"); //$NON-NLS-1$
State state = command.getState("org.eclipse.ui.commands.toggleState"); //$NON-NLS-1$
return ((Boolean) state.getValue()).booleanValue();
}
}