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/*******************************************************************************
* Copyright (c) 2012 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:
* Wind River Systems - initial API and implementation
*******************************************************************************/
package org.eclipse.tcf.te.launch.ui.internal.viewer;
import java.util.EventObject;
import org.eclipse.debug.core.ILaunchConfiguration;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.viewers.Viewer;
import org.eclipse.tcf.te.launch.core.lm.interfaces.ICommonLaunchAttributes;
import org.eclipse.tcf.te.launch.core.persistence.DefaultPersistenceDelegate;
import org.eclipse.tcf.te.launch.ui.model.LaunchModel;
import org.eclipse.tcf.te.launch.ui.model.LaunchNode;
import org.eclipse.tcf.te.runtime.concurrent.util.ExecutorsUtil;
import org.eclipse.tcf.te.runtime.events.ChangeEvent;
import org.eclipse.tcf.te.runtime.events.EventManager;
import org.eclipse.tcf.te.runtime.interfaces.events.IEventListener;
import org.eclipse.tcf.te.runtime.model.interfaces.IContainerModelNode;
import org.eclipse.tcf.te.runtime.model.interfaces.IModelNode;
import org.eclipse.tcf.te.ui.trees.TreeContentProvider;
import org.eclipse.ui.PlatformUI;
/**
* Launches content provider for the common navigator of Target Explorer.
*/
public class LaunchNavigatorContentProvider extends TreeContentProvider implements IEventListener {
/**
* Constructor.
*/
public LaunchNavigatorContentProvider() {
super();
EventManager.getInstance().addEventListener(this, ChangeEvent.class);
}
/* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITreeContentProvider#getParent(java.lang.Object)
*/
@Override
public Object getParent(Object element) {
if (element instanceof LaunchNode) {
LaunchNode node = (LaunchNode)element;
if (node.getParent() == null || LaunchNode.TYPE_ROOT.equals(node.getType())) {
return node.getModel().getModelRoot();
}
if (!isRootNodeVisible() && LaunchNode.TYPE_LAUNCH_CONFIG_TYPE.equals(node.getType())) {
return node.getModel().getModelRoot();
}
return node.getParent();
}
return null;
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.trees.TreeContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer, java.lang.Object, java.lang.Object)
*/
@Override
public void inputChanged(final Viewer viewer, Object oldInput, Object newInput) {
super.inputChanged(viewer, oldInput, newInput);
if (newInput != null && !newInput.equals(oldInput)) {
LaunchModel model = LaunchModel.getLaunchModel(newInput);
LaunchNode lastLaunchedNode = null;
long nodeValue = -1;
for (IModelNode typeNode : model.getRootNode().getChildren()) {
for (IModelNode launchNode : ((IContainerModelNode)typeNode).getChildren()) {
ILaunchConfiguration config = ((LaunchNode)launchNode).getLaunchConfiguration();
String lastLaunched = DefaultPersistenceDelegate.getAttribute(config, ICommonLaunchAttributes.ATTR_LAST_LAUNCHED, (String)null);
if (lastLaunched != null) {
long last = Long.parseLong(lastLaunched);
if (last > nodeValue) {
nodeValue = last;
lastLaunchedNode = (LaunchNode)launchNode;
}
}
}
}
if (lastLaunchedNode != null) {
final LaunchNode node = lastLaunchedNode;
ExecutorsUtil.executeInUI(new Runnable() {
@Override
public void run() {
viewer.setSelection(new StructuredSelection(node));
}
});
}
}
}
/*
* (non-Javadoc)
* @see org.eclipse.tcf.te.ui.trees.TreeContentProvider#dispose()
*/
@Override
public void dispose() {
super.dispose();
EventManager.getInstance().removeEventListener(this);
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITreeContentProvider#getChildren(java.lang.Object)
*/
@Override
public Object[] getChildren(Object element) {
super.getChildren(element);
if (element instanceof LaunchNode) {
return ((LaunchNode)element).getChildren();
}
LaunchModel model = LaunchModel.getLaunchModel(element);
if (model != null) {
if (isRootNodeVisible() && model.getRootNode().hasChildren()) {
return new Object[]{model.getRootNode()};
}
return model.getRootNode().getChildren();
}
return NO_ELEMENTS;
}
/*
* (non-Javadoc)
* @see org.eclipse.jface.viewers.ITreeContentProvider#hasChildren(java.lang.Object)
*/
@Override
public boolean hasChildren(Object element) {
if (element instanceof LaunchNode) {
return ((LaunchNode)element).hasChildren();
}
LaunchModel model = LaunchModel.getLaunchModel(element);
if (model != null) {
return model.getRootNode().hasChildren();
}
return false;
}
/**
* If the root node of the tree is visible.
*
* @return true if it is visible.
*/
protected boolean isRootNodeVisible() {
return true;
}
/* (non-Javadoc)
* @see org.eclipse.tcf.te.runtime.interfaces.events.IEventListener#eventFired(java.util.EventObject)
*/
@Override
public void eventFired(EventObject event) {
final TreeViewer viewer = this.viewer;
if (event.getSource() instanceof LaunchModel) {
PlatformUI.getWorkbench().getDisplay().asyncExec(new Runnable() {
@Override
public void run() {
viewer.refresh(true);
}
});
}
}
}
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