From 16e0e1808e7b031b6c2d91363b6990584267463f Mon Sep 17 00:00:00 2001 From: Vladimir Glazounov Date: Fri, 11 Apr 2003 16:13:07 +0000 Subject: INTEGRATION: CWS vcl07 (1.9.2); FILE ADDED 2003/04/08 14:28:51 obr 1.9.2.1: re-added accessibility workbench --- toolkit/test/accessibility/NodeHandler.java | 140 ++++++++++++++++++++++++++++ 1 file changed, 140 insertions(+) create mode 100644 toolkit/test/accessibility/NodeHandler.java (limited to 'toolkit/test') diff --git a/toolkit/test/accessibility/NodeHandler.java b/toolkit/test/accessibility/NodeHandler.java new file mode 100644 index 000000000000..0de70e62adaf --- /dev/null +++ b/toolkit/test/accessibility/NodeHandler.java @@ -0,0 +1,140 @@ +import java.util.Vector; + + +/** + * Map an arbitrary object into parts of a tree node. + */ +abstract class NodeHandler +{ + /** This vector is used as cache for the child objects. + */ + protected Vector maChildList; + + + public abstract NodeHandler createHandler ( + drafts.com.sun.star.accessibility.XAccessibleContext xContext); + + public NodeHandler () + { + maChildList = new Vector (); + } + + /** Clear the cache of child objects. + */ + public void clear () + { + synchronized (maChildList) + { + maChildList = new Vector (); + } + } + + /** This factory method creates an individual handler for the specified + object that may hold information to accelerate the access to its children. + */ + // public abstract NodeHandler createHandler (Object aObject); + + /** return the number of children this object has */ + public int getChildCount(Object aObject) + { + synchronized (maChildList) + { + return maChildList.size(); + } + } + + /** + * return a child object. Complex + * children have to be AccTreeNode instances. + * @see AccTreeNode + */ + public AccessibleTreeNode getChild (AccessibleTreeNode aParent, int nIndex) + { + synchronized (maChildList) + { + AccessibleTreeNode aChild = (AccessibleTreeNode)maChildList.get(nIndex); + if (aChild == null) + { + aChild = createChild (aParent, nIndex); + if (aChild == null) + aChild = new StringNode ("could not create child", aParent); + maChildList.setElementAt (aChild, nIndex); + } + return aChild; + } + } + + public AccessibleTreeNode getChildNoCreate (AccessibleTreeNode aParent, int nIndex) + { + synchronized (maChildList) + { + return (AccessibleTreeNode)maChildList.get(nIndex); + } + } + + /** Remove the specified child from the list of children. + */ + public boolean removeChild (AccessibleTreeNode aNode, int nIndex) + { + try + { + synchronized (maChildList) + { + System.out.println (" removing child at position " + nIndex + ": " + + maChildList.elementAt (nIndex)); + maChildList.remove (nIndex); + } + } + catch (Exception e) + { + return false; + } + return true; + } + + public int indexOf (AccessibleTreeNode aNode) + { + synchronized (maChildList) + { + return maChildList.indexOf (aNode); + } + } + + /** Create a child object for the specified data. This method is called + usually from getChild and put there into the cache. + */ + public abstract AccessibleTreeNode createChild ( + AccessibleTreeNode aParent, int nIndex); + + // + // The following methods support editing of children and actions. + // They have default implementations for no actions and read-only. + // + + /** May this child be changed? */ + public boolean isChildEditable (AccessibleTreeNode aNode, int nIndex) + { + return false; + } + + /** change this child's value */ + // public void setChild(Object aObject, int nIndex) { } + + + /** get names of suported actions */ + public String[] getActions (AccessibleTreeNode aNode) + { + return new String[] {}; + } + + /** perform action */ + public void performAction (AccessibleTreeNode aNode, int nIndex) + { + } + + /** Update all children. + */ + public void update (AccessibleTreeNode aNode) + { + } +} -- cgit