toolkit/test/accessibility/NodeFactory.java

   1 import com.sun.star.accessibility.*;
   2 import java.util.Vector;
   3
   4 import tools.NameProvider;
   5
   6 /** This singleton class creates nodes for given accessible objects.
   7 */
   8 class NodeFactory
   9 {
  10     public synchronized static NodeFactory Instance ()
  11     {
  12         if (maInstance == null)
  13         {
  14             maInstance = new NodeFactory();
  15         }
  16         return maInstance;
  17     }
  18
  19     private NodeFactory ()
  20     {
  21         mbVerbose = false;
  22
  23         maContextHandler = new AccessibleContextHandler();
  24         maTextHandler = new AccessibleTextHandler();
  25         maEditableTextHandler = new AccessibleEditableTextHandler();
  26         maComponentHandler = new AccessibleComponentHandler();
  27         maExtendedComponentHandler = new AccessibleExtendedComponentHandler();
  28         maActionHandler = new AccessibleActionHandler();
  29         maImageHandler = new AccessibleImageHandler();
  30         maTableHandler = new AccessibleTableHandler();
  31         maCellHandler = new AccessibleCellHandler();
  32         maHypertextHandler = new AccessibleHypertextHandler();
  33         maHyperlinkHandler = new AccessibleHyperlinkHandler();
  34         maSelectionHandler = new AccessibleSelectionHandler();
  35         maRelationHandler = new AccessibleRelationHandler();
  36         maTreeHandler = new AccessibleTreeHandler();
  37         maUNOHandler = new AccessibleUNOHandler();
  38     }
  39
  40
  41     /** add default handlers based on the supported interfaces */
  42     private void addDefaultHandlers (AccTreeNode aNode, XAccessibleContext xContext)
  43     {
  44         if (false)
  45         {
  46             // Slow but complete version: try each handler type separately.
  47             aNode.addHandler (maContextHandler.createHandler (xContext));
  48             aNode.addHandler (maTextHandler.createHandler (xContext));
  49             aNode.addHandler (maEditableTextHandler.createHandler (xContext));
  50             aNode.addHandler (maComponentHandler.createHandler (xContext));
  51             aNode.addHandler (maExtendedComponentHandler.createHandler (xContext));
  52             aNode.addHandler (maActionHandler.createHandler (xContext));
  53             aNode.addHandler (maImageHandler.createHandler (xContext));
  54             aNode.addHandler (maTableHandler.createHandler (xContext));
  55             aNode.addHandler (maCellHandler.createHandler (xContext));
  56             aNode.addHandler (maHypertextHandler.createHandler (xContext));
  57             aNode.addHandler (maHyperlinkHandler.createHandler (xContext));
  58             aNode.addHandler (maSelectionHandler.createHandler (xContext));
  59             aNode.addHandler (maRelationHandler.createHandler (xContext));
  60             aNode.addHandler (maUNOHandler.createHandler (xContext));
  61             aNode.addHandler (maTreeHandler.createHandler (xContext));
  62         }
  63         else
  64         {
  65             // Exploit dependencies between interfaces.
  66             NodeHandler aHandler;
  67             aNode.addHandler (maContextHandler.createHandler (xContext));
  68
  69             aHandler = maTextHandler.createHandler (xContext);
  70             if (aHandler != null)
  71             {
  72                 aNode.addHandler (aHandler);
  73                 aNode.addHandler (maEditableTextHandler.createHandler (xContext));
  74                 aNode.addHandler (maHypertextHandler.createHandler (xContext));
  75                 aNode.addHandler (maHyperlinkHandler.createHandler (xContext));
  76             }
  77             aHandler = maComponentHandler.createHandler (xContext);
  78             if (aHandler != null)
  79             {
  80                 aNode.addHandler (aHandler);
  81                 aNode.addHandler (maExtendedComponentHandler.createHandler (xContext));
  82             }
  83             aNode.addHandler (maActionHandler.createHandler (xContext));
  84             aNode.addHandler (maImageHandler.createHandler (xContext));
  85             aNode.addHandler (maTableHandler.createHandler (xContext));
  86             aNode.addHandler (maRelationHandler.createHandler (xContext));
  87             aNode.addHandler (maCellHandler.createHandler (xContext));
  88             aNode.addHandler (maSelectionHandler.createHandler (xContext));
  89             aNode.addHandler (maUNOHandler.createHandler (xContext));
  90             aNode.addHandler (maTreeHandler.createHandler (xContext));
  91         }
  92     }
  93
  94     /** create a node with the default handlers */
  95     public AccTreeNode createDefaultNode (XAccessible xAccessible, AccessibleTreeNode aParent)
  96     {
  97         // default: aObject + aDisplay
  98         String sDisplay;
  99
 100         // if we are accessible, we use the context + name instead
 101         XAccessibleContext xContext = null;
 102         if (xAccessible != null)
 103             xContext = xAccessible.getAccessibleContext();
 104         if (xContext != null)
 105         {
 106             sDisplay = xContext.getAccessibleName();
 107             if (sDisplay.length()==0)
 108             {
 109                 sDisplay = "<no name> Role: "
 110                     + NameProvider.getRoleName (
 111                         xContext.getAccessibleRole());
 112             }
 113         }
 114         else
 115             sDisplay = new String ("not accessible");
 116
 117
 118         // create node, and add default handlers
 119         AccTreeNode aNode = new AccTreeNode (xAccessible, xContext, sDisplay, aParent);
 120         addDefaultHandlers (aNode, xContext);
 121
 122         if (aNode == null)
 123             System.out.println ("createDefaultNode == null");
 124         return aNode;
 125     }
 126
 127     private static NodeFactory maInstance = null;
 128
 129     private boolean mbVerbose;
 130
 131     // default handlers
 132     private NodeHandler maContextHandler = new AccessibleContextHandler();
 133     private NodeHandler maTextHandler = new AccessibleTextHandler();
 134     private NodeHandler maEditableTextHandler = new AccessibleEditableTextHandler();
 135     private NodeHandler maComponentHandler = new AccessibleComponentHandler();
 136     private NodeHandler maExtendedComponentHandler = new AccessibleExtendedComponentHandler();
 137     private NodeHandler maActionHandler = new AccessibleActionHandler();
 138     private NodeHandler maImageHandler = new AccessibleImageHandler();
 139     private NodeHandler maTableHandler = new AccessibleTableHandler();
 140     private NodeHandler maCellHandler = new AccessibleCellHandler();
 141     private NodeHandler maHypertextHandler = new AccessibleHypertextHandler();
 142     private NodeHandler maHyperlinkHandler = new AccessibleHyperlinkHandler();
 143     private NodeHandler maSelectionHandler = new AccessibleSelectionHandler();
 144     private NodeHandler maRelationHandler = new AccessibleRelationHandler();
 145     private NodeHandler maTreeHandler = new AccessibleTreeHandler();
 146     private NodeHandler maUNOHandler = new AccessibleUNOHandler();
 147 }