/** called when our JTree's nodes are selected. */
void nodeSelected(TreeNode treeNode) {
lastSelected = treeNode;
Node node = jtree.getNode(treeNode);
if (node == null) return;
String xpath = DOMInfoExtractor.getXPath(node);
selectedXPathTextField.setText(xpath);
String message = DOMTreeFull.toString(node);
message += "\r\n";
message += xpath;
setMessage(message);
}
FoundItem getFoundItem(Node n, String text) {
String s = n.getNodeValue();
if (s == null) s = n.getNodeName();
String string;
if (text != null) {
int index = s.indexOf(text);
int left = Math.max(0, index - 5);
int right = Math.min(s.length(), index + text.length() + 20);
string = s.substring(left, right);
} else string = s;
TreeNode tn = jtree.getTreeNode(n);
TreePath tp = getTreePath(tn);
return new FoundItem(string, tp);
}
void reloadJTree(String url) {
System.out.println("reload " + url);
Document dom;
try {
URL uurl = new URL(url);
HTMLWrapper hw = new HTMLWrapper(url);
dom = hw.getDOM();
} catch (IOException e) {
e.printStackTrace();
try {
dom = HTML2DOM.getDOM(new FileInputStream(url));
} catch (IOException ie) {
JOptionPane.showMessageDialog(this, "can't get document of the url: " + url);
ie.printStackTrace();
return;
}
}
document = dom;
jtree.setRootNode(dom);
}
public DOMTreeView(Document dom) {
super("TreeWalkerView ");
document = dom;
// jtree UI setup
jtree = new DOMTreeFull((Node) document);
jtree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
// Listen for when the selection changes, call nodeSelected(node)
jtree.addTreeSelectionListener(
new TreeSelectionListener() {
public void valueChanged(TreeSelectionEvent e) {
TreePath path = (TreePath) e.getPath();
TreeNode treeNode = (TreeNode) path.getLastPathComponent();
if (jtree.getSelectionModel().isPathSelected(path)) nodeSelected(treeNode);
}
});
treeScroll = new JScrollPane(jtree);
treeScroll.setBorder(
BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("DOM Tree View"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)));
JPanel urlPanel = new JPanel();
JLabel urlLabel = new JLabel("URL:");
urlTextField = new JTextField(50);
urlTextField.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Object source = evt.getSource();
if (source == urlTextField) {
reloadJTree(urlTextField.getText());
}
}
});
urlPanel.add(urlLabel);
urlPanel.add(urlTextField);
JPanel selectedXPathPanel = new JPanel();
JLabel xpathLabel = new JLabel("XPath: ");
selectedXPathTextField = new JTextField(50);
selectedXPathTextField.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Object source = evt.getSource();
if (source == selectedXPathTextField) {
lookupByXPath(selectedXPathTextField.getText());
}
}
});
selectedXPathPanel.add(xpathLabel);
selectedXPathPanel.add(selectedXPathTextField);
JPanel lookupPanel = new JPanel();
JLabel lookupLabel = new JLabel("look up:");
lookupTextField = new JTextField(20);
lookupTextField.addActionListener(
new ActionListener() {
public void actionPerformed(ActionEvent evt) {
Object source = evt.getSource();
if (source == lookupTextField) {
lookup(lookupTextField.getText());
}
}
});
foundList = new JList();
foundList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
foundList.addListSelectionListener(
new ListSelectionListener() {
public void valueChanged(ListSelectionEvent evt) {
Object source = evt.getSource();
if (source == foundList) {
FoundItem fi = (FoundItem) foundList.getSelectedValue();
if (fi == null) return;
jtree.setSelectionPath(fi.treePath);
jtree.scrollPathToVisible(fi.treePath);
}
}
});
JScrollPane foundScroll = new JScrollPane(foundList);
foundScroll.setBorder(
BorderFactory.createCompoundBorder(
BorderFactory.createTitledBorder("Nodes found"),
BorderFactory.createEmptyBorder(4, 4, 4, 4)));
// foundScroll.set
JPanel queryPanel = new JPanel();
queryPanel.add(lookupLabel);
queryPanel.add(lookupTextField);
lookupPanel.setLayout(new BorderLayout());
lookupPanel.add(queryPanel, BorderLayout.NORTH);
lookupPanel.add(foundScroll, BorderLayout.CENTER);
JSplitPane splitPane = new JSplitPane(JSplitPane.HORIZONTAL_SPLIT, treeScroll, lookupPanel);
splitPane.setContinuousLayout(true);
splitPane.setOneTouchExpandable(true);
splitPane.setDividerLocation(400);
JPanel mainPanel = new JPanel();
mainPanel.setLayout(new BorderLayout());
mainPanel.add(urlPanel, BorderLayout.NORTH);
mainPanel.add(selectedXPathPanel, BorderLayout.SOUTH);
mainPanel.add(splitPane, BorderLayout.CENTER);
// mainPanel.add(treeScroll, BorderLayout.CENTER);
// mainPanel.add(lookupPanel, BorderLayout.EAST);
getContentPane().add(mainPanel);
}