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package org.openoffice.accessibility.awb.tree;
import javax.swing.tree.TreeNode;
import javax.swing.tree.MutableTreeNode;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.event.TreeExpansionListener;
import javax.swing.event.TreeWillExpandListener;
import com.sun.star.accessibility.AccessibleRole;
import com.sun.star.accessibility.XAccessible;
import com.sun.star.accessibility.XAccessibleContext;
/**
*
*/
public class DynamicAccessibilityModel extends AccessibilityModel implements TreeExpansionListener, TreeWillExpandListener {
/* Creates a AccessibilityNode object for a window */
protected AccessibilityNode createWindowNode(XAccessible xAccessible,
XAccessibleContext xAccessibleContext) {
if (xAccessible != null) {
// Some objects inherit XAccessible, but should not appear in
// the hierarchy as toplevels (like sub-menus), so they don't
// return an accessible context.
if (xAccessibleContext != null) {
AccessibilityNode node = new AccessibilityNode(this);
node.setUserObject(xAccessible);
node.setAccessibleContext(xAccessibleContext);
putNode(xAccessible, node);
return node;
}
}
return null;
}
/* Creates a DynamicAccessibilityNode object */
protected AccessibilityNode createNode(XAccessible xAccessible) {
if (xAccessible != null) {
try {
// Some objects inherit XAccessible, but should not appear in
// the hierarchy as toplevels (like sub-menus), so they don't
// return an accessible context.
XAccessibleContext xAccessibleContext = xAccessible.getAccessibleContext();
if (xAccessibleContext != null) {
AccessibilityNode node = new DynamicAccessibilityNode(this);
node.setUserObject(xAccessible);
node.setAccessibleContext(xAccessibleContext);
putNode(xAccessible, node);
return node;
}
} catch (com.sun.star.uno.RuntimeException e) {
}
}
return null;
}
public void treeCollapsed(javax.swing.event.TreeExpansionEvent treeExpansionEvent) {
TreeNode node = (TreeNode) treeExpansionEvent.getPath().getLastPathComponent();
if (node instanceof DynamicAccessibilityNode) {
DynamicAccessibilityNode dynode = (DynamicAccessibilityNode) node;
dynode.clear();
}
}
public void treeExpanded(javax.swing.event.TreeExpansionEvent treeExpansionEvent) {
TreeNode node = (TreeNode) treeExpansionEvent.getPath().getLastPathComponent();
if (node instanceof AccessibilityNode) {
// Calling oneway methods from an UNO thread may cause
// deadlocks, so adding the listeners here.
for (java.util.Enumeration e = node.children(); e.hasMoreElements(); ) {
((AccessibilityNode) e.nextElement()).setAttached(true);
}
}
}
public void treeWillCollapse(javax.swing.event.TreeExpansionEvent treeExpansionEvent)
throws javax.swing.tree.ExpandVetoException {
TreeNode node = (TreeNode) treeExpansionEvent.getPath().getLastPathComponent();
if (node instanceof AccessibilityNode) {
// Calling oneway methods from an UNO thread may cause
// deadlocks, so adding the listeners here.
for (java.util.Enumeration e = node.children(); e.hasMoreElements(); ) {
((AccessibilityNode) e.nextElement()).setAttached(false);
}
}
}
public void treeWillExpand(javax.swing.event.TreeExpansionEvent treeExpansionEvent)
throws javax.swing.tree.ExpandVetoException {
TreeNode node = (TreeNode) treeExpansionEvent.getPath().getLastPathComponent();
if (node instanceof DynamicAccessibilityNode) {
DynamicAccessibilityNode dynode = (DynamicAccessibilityNode) node;
dynode.populate();
}
}
}