@Nullable
private TreePath getSelectedUniquePath() {
JTree tree = getTree();
if (tree == null) return null;
TreePath[] paths = tree.getSelectionPaths();
return paths == null || paths.length != 1 ? null : paths[0];
}
private static boolean isMoveSupported(JTree tree, int dir) {
final TreePath[] selectionPaths = tree.getSelectionPaths();
if (selectionPaths != null) {
DefaultMutableTreeNode parent = null;
for (TreePath treePath : selectionPaths)
if (treePath.getLastPathComponent() != null) {
final DefaultMutableTreeNode node =
(DefaultMutableTreeNode) treePath.getLastPathComponent();
if (parent == null) {
parent = (DefaultMutableTreeNode) node.getParent();
}
if (parent != node.getParent()) {
return false;
}
if (dir > 0) {
if (parent.getIndex(node) == parent.getChildCount() - 1) {
return false;
}
} else {
if (parent.getIndex(node) == 0) {
return false;
}
}
}
return true;
}
return false;
}
/** A value has changed. This is used as a TreeSelectionListener. */
public void valueChanged(TreeSelectionEvent e) {
JHelpNavigator navigator = getHelpNavigator();
HelpModel helpmodel = navigator.getModel();
debug("ValueChanged: " + e);
debug(" model: " + helpmodel);
// send selected items into navigator
TreeItem[] items = null;
TreePath[] paths = tree.getSelectionPaths();
if (paths != null) {
items = new TreeItem[paths.length];
for (int i = 0; i < paths.length; i++) {
if (paths[i] != null) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) paths[i].getLastPathComponent();
items[i] = (TreeItem) node.getUserObject();
}
}
}
navigator.setSelectedItems(items);
// change current id only if one items is selected
if (items != null && items.length == 1) {
SearchTOCItem item = (SearchTOCItem) items[0];
if (item != null) {
if (item.getID() != null) {
try {
// navigator.setCurrentID(item.getID());
helpmodel.setCurrentID(item.getID(), item.getName(), navigator);
} catch (InvalidHelpSetContextException ex) {
System.err.println("BadID: " + item.getID());
return;
}
} else if (item.getURL() != null) {
// navigator.setCurrentURL(item.getURL());
helpmodel.setCurrentURL(item.getURL(), item.getName(), navigator);
} else {
// no ID, no URL
return;
}
if (helpmodel instanceof TextHelpModel) {
DefaultHighlight h[] = new DefaultHighlight[item.hitCount()];
int i = 0;
Enumeration enum1 = item.getSearchHits();
while (enum1.hasMoreElements()) {
SearchHit info = (SearchHit) enum1.nextElement();
h[i] = new DefaultHighlight(info.getBegin(), info.getEnd());
i++;
}
// using setHighlights() instead of removeAll + add
// avoids one highlighting event
((TextHelpModel) helpmodel).setHighlights(h);
}
}
}
}
public static void unselect(JTree tree, final DefaultMutableTreeNode node) {
final TreePath rootPath = new TreePath(node.getPath());
final TreePath[] selectionPaths = tree.getSelectionPaths();
if (selectionPaths != null) {
for (TreePath selectionPath : selectionPaths) {
if (selectionPath.getPathCount() > rootPath.getPathCount()
&& rootPath.isDescendant(selectionPath)) {
tree.removeSelectionPath(selectionPath);
}
}
}
}
public static List<TreePath> collectSelectedPaths(final JTree tree, final TreePath treePath) {
final ArrayList<TreePath> result = new ArrayList<TreePath>();
final TreePath[] selections = tree.getSelectionPaths();
if (selections != null) {
for (TreePath selection : selections) {
if (treePath.isDescendant(selection)) {
result.add(selection);
}
}
}
return result;
}
@Nullable
private List<UsageInfo> getSelectedUsageInfos() {
TreePath[] paths = myTree.getSelectionPaths();
if (paths == null) return null;
final ArrayList<UsageInfo> result = new ArrayList<UsageInfo>();
for (TreePath path : paths) {
SliceNode sliceNode = fromPath(path);
if (sliceNode != null) {
result.add(sliceNode.getValue().getUsageInfo());
}
}
if (result.isEmpty()) return null;
return result;
}
@Nullable
private Node[] getSelectedNodes() {
TreePath[] leadSelectionPath = myTree.getSelectionPaths();
if (leadSelectionPath == null || leadSelectionPath.length == 0) return null;
final List<Node> result = new ArrayList<Node>();
for (TreePath comp : leadSelectionPath) {
final Object lastPathComponent = comp.getLastPathComponent();
if (lastPathComponent instanceof Node) {
final Node node = (Node) lastPathComponent;
result.add(node);
}
}
return result.isEmpty() ? null : result.toArray(new Node[result.size()]);
}
@Nullable
public Set<Object> getTreeSelectedActionIds() {
TreePath[] paths = myTree.getSelectionPaths();
if (paths == null) return null;
Set<Object> actions = new HashSet<Object>();
for (TreePath path : paths) {
Object node = path.getLastPathComponent();
if (node instanceof DefaultMutableTreeNode) {
DefaultMutableTreeNode defNode = (DefaultMutableTreeNode) node;
Object userObject = defNode.getUserObject();
actions.add(userObject);
}
}
return actions;
}
@Override
@Nullable
public Set<Usage> getSelectedUsages() {
TreePath[] selectionPaths = myTree.getSelectionPaths();
if (selectionPaths == null) {
return null;
}
Set<Usage> usages = new THashSet<Usage>();
for (TreePath selectionPath : selectionPaths) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) selectionPath.getLastPathComponent();
collectUsages(node, usages);
}
return usages;
}
@NotNull
public static <T> List<T> collectSelectedObjectsOfType(JTree tree, Class<T> clazz) {
final TreePath[] selections = tree.getSelectionPaths();
if (selections != null) {
final ArrayList<T> result = new ArrayList<T>();
for (TreePath selection : selections) {
final DefaultMutableTreeNode node =
(DefaultMutableTreeNode) selection.getLastPathComponent();
final Object userObject = node.getUserObject();
if (clazz.isInstance(userObject)) {
//noinspection unchecked
result.add((T) userObject);
}
}
return result;
}
return Collections.emptyList();
}
@NotNull
private List<Navigatable> getNavigatables() {
TreePath[] paths = myTree.getSelectionPaths();
if (paths == null) return Collections.emptyList();
final ArrayList<Navigatable> navigatables = new ArrayList<Navigatable>();
for (TreePath path : paths) {
Object lastPathComponent = path.getLastPathComponent();
if (lastPathComponent instanceof DefaultMutableTreeNode) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) lastPathComponent;
Object userObject = node.getUserObject();
if (userObject instanceof Navigatable) {
navigatables.add((Navigatable) userObject);
} else if (node instanceof Navigatable) {
navigatables.add((Navigatable) node);
}
}
}
return navigatables;
}
public static void ensureSelection(JTree tree) {
final TreePath[] paths = tree.getSelectionPaths();
if (paths != null) {
for (TreePath each : paths) {
if (tree.getRowForPath(each) >= 0 && tree.isVisible(each)) {
return;
}
}
}
for (int eachRow = 0; eachRow < tree.getRowCount(); eachRow++) {
TreePath eachPath = tree.getPathForRow(eachRow);
if (eachPath != null && tree.isVisible(eachPath)) {
tree.setSelectionPath(eachPath);
break;
}
}
}
@Nullable
private UsageTarget[] getSelectedUsageTargets() {
TreePath[] selectionPaths = myTree.getSelectionPaths();
if (selectionPaths == null) return null;
Set<UsageTarget> targets = new THashSet<UsageTarget>();
for (TreePath selectionPath : selectionPaths) {
Object lastPathComponent = selectionPath.getLastPathComponent();
if (lastPathComponent instanceof UsageTargetNode) {
UsageTargetNode usageTargetNode = (UsageTargetNode) lastPathComponent;
UsageTarget target = usageTargetNode.getTarget();
if (target != null && target.isValid()) {
targets.add(target);
}
}
}
return targets.isEmpty() ? null : targets.toArray(new UsageTarget[targets.size()]);
}
private List<ActionUrl> findActionsUnderSelection() {
final ArrayList<ActionUrl> actions = new ArrayList<ActionUrl>();
final TreePath[] selectionPaths = myActionsTree.getSelectionPaths();
if (selectionPaths != null) {
for (TreePath path : selectionPaths) {
final ActionUrl selectedUrl = CustomizationUtil.getActionUrl(path, ActionUrl.MOVE);
final ArrayList<String> selectedGroupPath =
new ArrayList<String>(selectedUrl.getGroupPath());
final Object component = selectedUrl.getComponent();
if (component instanceof Group) {
selectedGroupPath.add(((Group) component).getName());
for (ActionUrl action : mySelectedSchema.getActions()) {
final ArrayList<String> groupPath = action.getGroupPath();
final int idx = Collections.indexOfSubList(groupPath, selectedGroupPath);
if (idx > -1) {
actions.add(action);
}
}
}
}
}
return actions;
}
@Nullable
private Object[] getSelectedTreeElements() {
final JTree tree = getTree();
return tree != null ? convertPathsToTreeElements(tree.getSelectionPaths()) : null;
}
private Object[] getSelectedElements() {
final JTree tree = getTree();
return tree != null
? convertPathsToValues(tree.getSelectionPaths())
: ArrayUtil.EMPTY_OBJECT_ARRAY;
}