/** Refreshes changed content nodes */
private void refreshDataSourceTree() {
Node selectedNode = getSelectedNode();
final String[] selectedPath = NodeOp.createPath(selectedNode, em.getRootContext());
Children rootChildren = em.getRootContext().getChildren();
Node dataSourcesFilterNode = rootChildren.findChild(DataSourcesNode.NAME);
if (dataSourcesFilterNode == null) {
logger.log(
Level.SEVERE,
"Cannot find data sources filter node, won't refresh the content tree"); // NON-NLS
return;
}
OriginalNode imagesNodeOrig = dataSourcesFilterNode.getLookup().lookup(OriginalNode.class);
if (imagesNodeOrig == null) {
logger.log(
Level.SEVERE, "Cannot find data sources node, won't refresh the content tree"); // NON-NLS
return;
}
Node imagesNode = imagesNodeOrig.getNode();
RootContentChildren contentRootChildren = (RootContentChildren) imagesNode.getChildren();
contentRootChildren.refreshContentKeys();
// final TreeView tree = getTree();
// tree.expandNode(imagesNode);
setSelectedNode(selectedPath, DataSourcesNode.NAME);
}
private void updateHistory(Node[] selectedNodes) {
if (selectedNodes.length == 0) {
return;
}
Node selectedNode = selectedNodes[0];
String selectedNodeName = selectedNode.getName();
/* get the previous entry to make sure we don't duplicate it.
* Motivation for this is also that if we used the back button,
* then we already added the 'current' node to 'back' and we will
* detect that and not reset the forward list.
*/
String[] currentLast = backList.peekLast();
String lastNodeName = null;
if (currentLast != null) {
lastNodeName = currentLast[currentLast.length - 1];
}
if (currentLast == null || !selectedNodeName.equals(lastNodeName)) {
// add to the list if the last if not the same as current
final String[] selectedPath = NodeOp.createPath(selectedNode, em.getRootContext());
backList.addLast(selectedPath); // add the node to the "backList"
if (backList.size() > 1) {
backButton.setEnabled(true);
} else {
backButton.setEnabled(false);
}
forwardList.clear(); // clear the "forwardList"
forwardButton.setEnabled(false); // disable the forward Button
}
}