/** * Processes an idChanged event. Search is different from all other navigators in that you while * search tree is synchronized the highlighting doesn't occur unless selected from the search * navigator. */ public void idChanged(HelpModelEvent e) { ID id = e.getID(); URL url = e.getURL(); HelpModel helpModel = searchnav.getModel(); debug("idChanged(" + e + ")"); if (e.getSource() != helpModel) { debug("Internal inconsistency!"); debug(" " + e.getSource() + " != " + helpModel); throw new Error("Internal error"); } TreePath s = tree.getSelectionPath(); if (s != null) { Object o = s.getLastPathComponent(); // should require only a TreeNode if (o instanceof DefaultMutableTreeNode) { DefaultMutableTreeNode tn = (DefaultMutableTreeNode) o; SearchTOCItem item = (SearchTOCItem) tn.getUserObject(); if (item != null) { ID nId = item.getID(); if (nId != null && nId.equals(id)) { return; } } } } DefaultMutableTreeNode node = findIDorURL(topNode, id, url); if (node == null) { // node doesn't exist. Need to clear the selection. debug("node didn't exist"); tree.clearSelection(); return; } TreePath path = new TreePath(node.getPath()); tree.expandPath(path); tree.setSelectionPath(path); tree.scrollPathToVisible(path); }
private DefaultMutableTreeNode findIDorURL(DefaultMutableTreeNode node, ID id, URL url) { SearchTOCItem item = (SearchTOCItem) node.getUserObject(); if (item != null) { ID testID = item.getID(); if (testID != null && id != null && testID.equals(id)) { return node; } else { URL testURL = item.getURL(); if (testURL != null && url != null && url.sameFile(testURL)) { return node; } } } int size = node.getChildCount(); for (int i = 0; i < size; i++) { DefaultMutableTreeNode tmp = (DefaultMutableTreeNode) node.getChildAt(i); DefaultMutableTreeNode test = findIDorURL(tmp, id, url); if (test != null) { return test; } } return null; }