2003-04-25 08:49:42 -05:00
|
|
|
import com.sun.star.accessibility.XAccessible;
|
|
|
|
import com.sun.star.accessibility.XAccessibleContext;
|
2003-04-11 11:10:08 -05:00
|
|
|
import com.sun.star.uno.UnoRuntime;
|
|
|
|
import com.sun.star.lang.IndexOutOfBoundsException;
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Map the tree of accessibility objects into their
|
|
|
|
* AccessibilityTreeModel counterparts.
|
|
|
|
*/
|
|
|
|
class AccessibleTreeHandler
|
|
|
|
extends NodeHandler
|
|
|
|
{
|
|
|
|
protected XAccessibleContext mxContext;
|
|
|
|
|
|
|
|
public NodeHandler createHandler (XAccessibleContext xContext)
|
|
|
|
{
|
|
|
|
if (xContext != null)
|
|
|
|
return new AccessibleTreeHandler (xContext);
|
|
|
|
else
|
|
|
|
return null;
|
|
|
|
}
|
|
|
|
|
|
|
|
public AccessibleTreeHandler ()
|
|
|
|
{
|
|
|
|
super();
|
|
|
|
mxContext = null;
|
|
|
|
}
|
|
|
|
|
|
|
|
public AccessibleTreeHandler (XAccessibleContext xContext)
|
|
|
|
{
|
|
|
|
super();
|
|
|
|
mxContext = xContext;
|
|
|
|
if (mxContext != null)
|
|
|
|
// Add one to the number of children to include the string node
|
|
|
|
// that tells you how many children there are.
|
|
|
|
synchronized (maChildList)
|
|
|
|
{
|
|
|
|
maChildList.setSize (1 + mxContext.getAccessibleChildCount());
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
public AccessibleTreeNode createChild (AccessibleTreeNode aParent, int nIndex)
|
|
|
|
{
|
|
|
|
AccessibleTreeNode aChild = null;
|
|
|
|
if (mxContext != null)
|
|
|
|
{
|
|
|
|
if (nIndex == 0)
|
|
|
|
aChild = new StringNode ("Child count: " + mxContext.getAccessibleChildCount(),
|
|
|
|
aParent);
|
|
|
|
else
|
|
|
|
{
|
|
|
|
// Lower index to skip the string node.
|
|
|
|
nIndex -= 1;
|
|
|
|
try
|
|
|
|
{
|
|
|
|
XAccessible xChild = mxContext.getAccessibleChild (nIndex);
|
|
|
|
aChild = NodeFactory.Instance().createDefaultNode (
|
|
|
|
xChild, aParent);
|
|
|
|
}
|
|
|
|
catch( IndexOutOfBoundsException e )
|
|
|
|
{
|
|
|
|
aChild = new StringNode ("ERROR: no child with index " + nIndex, aParent);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else
|
|
|
|
aChild = new StringNode ("XAccessibleContext interface not supported", aParent);
|
|
|
|
return aChild;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** Try to add the specified accessible child into the lists of
|
|
|
|
children. The insertion position is determined from the
|
|
|
|
getIndexInParent method of the child.
|
|
|
|
*/
|
|
|
|
public AccessibleTreeNode addAccessibleChild (AccessibleTreeNode aParent, XAccessible xChild)
|
|
|
|
{
|
|
|
|
AccessibleTreeNode aChild = null;
|
|
|
|
|
|
|
|
if (xChild != null)
|
|
|
|
{
|
|
|
|
XAccessibleContext xContext = xChild.getAccessibleContext();
|
|
|
|
if (xContext != null)
|
|
|
|
{
|
|
|
|
int nIndex = xContext.getAccessibleIndexInParent() + 1;
|
|
|
|
synchronized (maChildList)
|
|
|
|
{
|
|
|
|
if ((nIndex >= 0) || (nIndex <= maChildList.size()))
|
|
|
|
{
|
|
|
|
aChild = NodeFactory.Instance().createDefaultNode (xChild, aParent);
|
|
|
|
maChildList.insertElementAt (aChild, nIndex);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
return aChild;
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
/** Update only the child count node. Trust on other ways to update the
|
|
|
|
accessible children.
|
|
|
|
*/
|
|
|
|
public void update (AccessibleTreeNode aNode)
|
|
|
|
{
|
|
|
|
synchronized (maChildList)
|
|
|
|
{
|
|
|
|
maChildList.setElementAt (null, 0);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|