1*cdf0e10cSrcweir import com.sun.star.accessibility.*; 2*cdf0e10cSrcweir import com.sun.star.lang.XServiceInfo; 3*cdf0e10cSrcweir import com.sun.star.lang.IndexOutOfBoundsException; 4*cdf0e10cSrcweir import com.sun.star.uno.UnoRuntime; 5*cdf0e10cSrcweir 6*cdf0e10cSrcweir import java.util.Vector; 7*cdf0e10cSrcweir import java.awt.*; 8*cdf0e10cSrcweir import java.awt.event.*; 9*cdf0e10cSrcweir import javax.swing.*; 10*cdf0e10cSrcweir import javax.swing.tree.*; 11*cdf0e10cSrcweir import javax.swing.event.*; 12*cdf0e10cSrcweir 13*cdf0e10cSrcweir 14*cdf0e10cSrcweir 15*cdf0e10cSrcweir /** This is the tree component that is responsible for displaying the 16*cdf0e10cSrcweir contents of the tree model on the screen. 17*cdf0e10cSrcweir */ 18*cdf0e10cSrcweir public class AccessibilityTree 19*cdf0e10cSrcweir implements TreeExpansionListener, TreeWillExpandListener 20*cdf0e10cSrcweir { 21*cdf0e10cSrcweir /** Create a new accessibility tree. Use the specified message display 22*cdf0e10cSrcweir for displaying messages and the specified canvas to draw the 23*cdf0e10cSrcweir graphical representations of accessible objects on. 24*cdf0e10cSrcweir */ 25*cdf0e10cSrcweir public AccessibilityTree () 26*cdf0e10cSrcweir { 27*cdf0e10cSrcweir maTree = new JTree (); 28*cdf0e10cSrcweir 29*cdf0e10cSrcweir AccessibilityTreeModel aModel = 30*cdf0e10cSrcweir new AccessibilityTreeModel ( 31*cdf0e10cSrcweir new StringNode ("Please press Update button", null)); 32*cdf0e10cSrcweir maTree.setModel (aModel); 33*cdf0e10cSrcweir 34*cdf0e10cSrcweir maCellRenderer = new AccessibleTreeCellRenderer(); 35*cdf0e10cSrcweir // setCellRenderer (maCellRenderer); 36*cdf0e10cSrcweir 37*cdf0e10cSrcweir // allow editing of XAccessibleText interfaces 38*cdf0e10cSrcweir // setEditable (true); 39*cdf0e10cSrcweir // maTreeModel.addTreeModelListener( new TextUpdateListener() ); 40*cdf0e10cSrcweir 41*cdf0e10cSrcweir maTree.addMouseListener (new MouseListener (this)); 42*cdf0e10cSrcweir 43*cdf0e10cSrcweir // Listen to expansions and collapses to change the mouse cursor. 44*cdf0e10cSrcweir mnExpandLevel = 0; 45*cdf0e10cSrcweir maTree.addTreeWillExpandListener (this); 46*cdf0e10cSrcweir maTree.addTreeExpansionListener (this); 47*cdf0e10cSrcweir } 48*cdf0e10cSrcweir 49*cdf0e10cSrcweir public JTree getComponent () 50*cdf0e10cSrcweir { 51*cdf0e10cSrcweir return maTree; 52*cdf0e10cSrcweir } 53*cdf0e10cSrcweir 54*cdf0e10cSrcweir // Change cursor during expansions to show the user that this is a 55*cdf0e10cSrcweir // lengthy operation. 56*cdf0e10cSrcweir public void treeWillExpand (TreeExpansionEvent e) 57*cdf0e10cSrcweir { 58*cdf0e10cSrcweir if (mnExpandLevel == 0) 59*cdf0e10cSrcweir { 60*cdf0e10cSrcweir maTree.setCursor (new Cursor (Cursor.WAIT_CURSOR)); 61*cdf0e10cSrcweir } 62*cdf0e10cSrcweir mnExpandLevel += 1; 63*cdf0e10cSrcweir } 64*cdf0e10cSrcweir public void treeWillCollapse (TreeExpansionEvent e) 65*cdf0e10cSrcweir { 66*cdf0e10cSrcweir if (mnExpandLevel == 0) 67*cdf0e10cSrcweir { 68*cdf0e10cSrcweir maTree.setCursor (new Cursor (Cursor.WAIT_CURSOR)); 69*cdf0e10cSrcweir } 70*cdf0e10cSrcweir mnExpandLevel += 1; 71*cdf0e10cSrcweir } 72*cdf0e10cSrcweir public void treeExpanded (TreeExpansionEvent e) 73*cdf0e10cSrcweir { 74*cdf0e10cSrcweir mnExpandLevel -= 1; 75*cdf0e10cSrcweir if (mnExpandLevel == 0) 76*cdf0e10cSrcweir { 77*cdf0e10cSrcweir maTree.setCursor (new Cursor (Cursor.DEFAULT_CURSOR)); 78*cdf0e10cSrcweir } 79*cdf0e10cSrcweir } 80*cdf0e10cSrcweir public void treeCollapsed (TreeExpansionEvent e) 81*cdf0e10cSrcweir { 82*cdf0e10cSrcweir mnExpandLevel -= 1; 83*cdf0e10cSrcweir if (mnExpandLevel == 0) 84*cdf0e10cSrcweir { 85*cdf0e10cSrcweir maTree.setCursor (new Cursor (Cursor.DEFAULT_CURSOR)); 86*cdf0e10cSrcweir } 87*cdf0e10cSrcweir } 88*cdf0e10cSrcweir 89*cdf0e10cSrcweir 90*cdf0e10cSrcweir 91*cdf0e10cSrcweir public void SetCanvas (Canvas aCanvas) 92*cdf0e10cSrcweir { 93*cdf0e10cSrcweir maCanvas = aCanvas; 94*cdf0e10cSrcweir ((AccessibilityTreeModel)maTree.getModel()).setCanvas (maCanvas); 95*cdf0e10cSrcweir } 96*cdf0e10cSrcweir 97*cdf0e10cSrcweir /** Expand the nodes in the subtree rooted in aNode according to the the 98*cdf0e10cSrcweir specified expander. The tree is locked during the expansion. 99*cdf0e10cSrcweir */ 100*cdf0e10cSrcweir protected void expandTree (AccessibleTreeNode aNode, Expander aExpander) 101*cdf0e10cSrcweir { 102*cdf0e10cSrcweir if (mnExpandLevel == 0) 103*cdf0e10cSrcweir { 104*cdf0e10cSrcweir maTree.setEnabled (false); 105*cdf0e10cSrcweir } 106*cdf0e10cSrcweir mnExpandLevel += 1; 107*cdf0e10cSrcweir 108*cdf0e10cSrcweir ((AccessibilityTreeModel)maTree.getModel()).lock (); 109*cdf0e10cSrcweir 110*cdf0e10cSrcweir try 111*cdf0e10cSrcweir { 112*cdf0e10cSrcweir expandTree (new TreePath (aNode.createPath()), aExpander); 113*cdf0e10cSrcweir } 114*cdf0e10cSrcweir catch (Exception e) 115*cdf0e10cSrcweir { 116*cdf0e10cSrcweir // Ignore 117*cdf0e10cSrcweir } 118*cdf0e10cSrcweir 119*cdf0e10cSrcweir mnExpandLevel -= 1; 120*cdf0e10cSrcweir if (mnExpandLevel == 0) 121*cdf0e10cSrcweir { 122*cdf0e10cSrcweir maTree.setEnabled (true); 123*cdf0e10cSrcweir ((AccessibilityTreeModel)maTree.getModel()).unlock (aNode); 124*cdf0e10cSrcweir } 125*cdf0e10cSrcweir } 126*cdf0e10cSrcweir 127*cdf0e10cSrcweir private TreePath expandTree( TreePath aPath, Expander aExpander ) 128*cdf0e10cSrcweir { 129*cdf0e10cSrcweir // return first expanded object 130*cdf0e10cSrcweir TreePath aFirst = null; 131*cdf0e10cSrcweir 132*cdf0e10cSrcweir // System.out.print ("e"); 133*cdf0e10cSrcweir 134*cdf0e10cSrcweir try 135*cdf0e10cSrcweir { 136*cdf0e10cSrcweir // get 'our' object 137*cdf0e10cSrcweir Object aObj = aPath.getLastPathComponent(); 138*cdf0e10cSrcweir 139*cdf0e10cSrcweir // expand this object, if the Expander tells us so 140*cdf0e10cSrcweir if( aExpander.expand( aObj ) ) 141*cdf0e10cSrcweir { 142*cdf0e10cSrcweir maTree.expandPath (aPath); 143*cdf0e10cSrcweir if( aFirst == null ) 144*cdf0e10cSrcweir aFirst = aPath; 145*cdf0e10cSrcweir } 146*cdf0e10cSrcweir 147*cdf0e10cSrcweir // visit all children 148*cdf0e10cSrcweir if (aObj instanceof AccessibleTreeNode) 149*cdf0e10cSrcweir { 150*cdf0e10cSrcweir AccessibleTreeNode aNode = (AccessibleTreeNode)aObj; 151*cdf0e10cSrcweir int nLength = aNode.getChildCount(); 152*cdf0e10cSrcweir for( int i = 0; i < nLength; i++ ) 153*cdf0e10cSrcweir { 154*cdf0e10cSrcweir TreePath aRet = expandTree( 155*cdf0e10cSrcweir aPath.pathByAddingChild( aNode.getChild( i ) ), 156*cdf0e10cSrcweir aExpander ); 157*cdf0e10cSrcweir if( aFirst == null ) 158*cdf0e10cSrcweir aFirst = aRet; 159*cdf0e10cSrcweir } 160*cdf0e10cSrcweir } 161*cdf0e10cSrcweir } 162*cdf0e10cSrcweir catch (Exception e) 163*cdf0e10cSrcweir { 164*cdf0e10cSrcweir System.out.println ("caught exception while expanding tree path " 165*cdf0e10cSrcweir + aPath + ": " + e); 166*cdf0e10cSrcweir e.printStackTrace (); 167*cdf0e10cSrcweir } 168*cdf0e10cSrcweir 169*cdf0e10cSrcweir return aFirst; 170*cdf0e10cSrcweir } 171*cdf0e10cSrcweir 172*cdf0e10cSrcweir 173*cdf0e10cSrcweir /** Expand all nodes and their subtrees that represent shapes. Call 174*cdf0e10cSrcweir * this method from the outside. */ 175*cdf0e10cSrcweir public void expandShapes () 176*cdf0e10cSrcweir { 177*cdf0e10cSrcweir expandShapes ((AccessibleTreeNode)maTree.getModel().getRoot()); 178*cdf0e10cSrcweir } 179*cdf0e10cSrcweir public void expandShapes (AccessibleTreeNode aNode) 180*cdf0e10cSrcweir { 181*cdf0e10cSrcweir expandTree (aNode, new ShapeExpander()); 182*cdf0e10cSrcweir } 183*cdf0e10cSrcweir 184*cdf0e10cSrcweir /** Expand all nodes */ 185*cdf0e10cSrcweir public void expandAll () 186*cdf0e10cSrcweir { 187*cdf0e10cSrcweir expandAll ((AccessibleTreeNode)maTree.getModel().getRoot()); 188*cdf0e10cSrcweir } 189*cdf0e10cSrcweir public void expandAll (AccessibleTreeNode aNode) 190*cdf0e10cSrcweir { 191*cdf0e10cSrcweir expandTree (aNode, new AllExpander()); 192*cdf0e10cSrcweir } 193*cdf0e10cSrcweir 194*cdf0e10cSrcweir 195*cdf0e10cSrcweir 196*cdf0e10cSrcweir public void disposing (com.sun.star.lang.EventObject e) 197*cdf0e10cSrcweir { 198*cdf0e10cSrcweir System.out.println ("disposing " + e); 199*cdf0e10cSrcweir } 200*cdf0e10cSrcweir 201*cdf0e10cSrcweir /* 202*cdf0e10cSrcweir public Dimension getPreferredSize () 203*cdf0e10cSrcweir { 204*cdf0e10cSrcweir Dimension aPreferredSize = super.getPreferredSize(); 205*cdf0e10cSrcweir Dimension aMinimumSize = super.getMinimumSize(); 206*cdf0e10cSrcweir if (aPreferredSize.width < aMinimumSize.width) 207*cdf0e10cSrcweir aPreferredSize.width = aMinimumSize.width; 208*cdf0e10cSrcweir return aPreferredSize; 209*cdf0e10cSrcweir } 210*cdf0e10cSrcweir */ 211*cdf0e10cSrcweir 212*cdf0e10cSrcweir class MouseListener extends MouseAdapter 213*cdf0e10cSrcweir { 214*cdf0e10cSrcweir public MouseListener (AccessibilityTree aTree) 215*cdf0e10cSrcweir { 216*cdf0e10cSrcweir maTree=aTree; 217*cdf0e10cSrcweir } 218*cdf0e10cSrcweir public void mousePressed(MouseEvent e) { popupTrigger(e); } 219*cdf0e10cSrcweir public void mouseClicked(MouseEvent e) { popupTrigger(e); } 220*cdf0e10cSrcweir public void mouseEntered(MouseEvent e) { popupTrigger(e); } 221*cdf0e10cSrcweir public void mouseExited(MouseEvent e) { popupTrigger(e); } 222*cdf0e10cSrcweir public void mouseReleased(MouseEvent e) { popupTrigger(e); } 223*cdf0e10cSrcweir 224*cdf0e10cSrcweir public boolean popupTrigger( MouseEvent e ) 225*cdf0e10cSrcweir { 226*cdf0e10cSrcweir boolean bIsPopup = e.isPopupTrigger(); 227*cdf0e10cSrcweir if( bIsPopup ) 228*cdf0e10cSrcweir { 229*cdf0e10cSrcweir int selRow = maTree.getComponent().getRowForLocation(e.getX(), e.getY()); 230*cdf0e10cSrcweir if (selRow != -1) 231*cdf0e10cSrcweir { 232*cdf0e10cSrcweir TreePath aPath = maTree.getComponent().getPathForLocation(e.getX(), e.getY()); 233*cdf0e10cSrcweir 234*cdf0e10cSrcweir // check for actions 235*cdf0e10cSrcweir Object aObject = aPath.getLastPathComponent(); 236*cdf0e10cSrcweir JPopupMenu aMenu = new JPopupMenu(); 237*cdf0e10cSrcweir if( aObject instanceof AccTreeNode ) 238*cdf0e10cSrcweir { 239*cdf0e10cSrcweir AccTreeNode aNode = (AccTreeNode)aObject; 240*cdf0e10cSrcweir 241*cdf0e10cSrcweir Vector aActions = new Vector(); 242*cdf0e10cSrcweir aMenu.add (new AccessibilityTree.ShapeExpandAction(maTree, aNode)); 243*cdf0e10cSrcweir aMenu.add (new AccessibilityTree.SubtreeExpandAction(maTree, aNode)); 244*cdf0e10cSrcweir 245*cdf0e10cSrcweir aNode.getActions(aActions); 246*cdf0e10cSrcweir for( int i = 0; i < aActions.size(); i++ ) 247*cdf0e10cSrcweir { 248*cdf0e10cSrcweir aMenu.add( new NodeAction( 249*cdf0e10cSrcweir aActions.elementAt(i).toString(), 250*cdf0e10cSrcweir aNode, i ) ); 251*cdf0e10cSrcweir } 252*cdf0e10cSrcweir } 253*cdf0e10cSrcweir else if (aObject instanceof AccessibleTreeNode) 254*cdf0e10cSrcweir { 255*cdf0e10cSrcweir AccessibleTreeNode aNode = (AccessibleTreeNode)aObject; 256*cdf0e10cSrcweir String[] aActionNames = aNode.getActions(); 257*cdf0e10cSrcweir int nCount=aActionNames.length; 258*cdf0e10cSrcweir if (nCount > 0) 259*cdf0e10cSrcweir { 260*cdf0e10cSrcweir for (int i=0; i<nCount; i++) 261*cdf0e10cSrcweir aMenu.add( new NodeAction( 262*cdf0e10cSrcweir aActionNames[i], 263*cdf0e10cSrcweir aNode, 264*cdf0e10cSrcweir i)); 265*cdf0e10cSrcweir } 266*cdf0e10cSrcweir else 267*cdf0e10cSrcweir aMenu = null; 268*cdf0e10cSrcweir } 269*cdf0e10cSrcweir if (aMenu != null) 270*cdf0e10cSrcweir aMenu.show (maTree.getComponent(), 271*cdf0e10cSrcweir e.getX(), e.getY()); 272*cdf0e10cSrcweir } 273*cdf0e10cSrcweir } 274*cdf0e10cSrcweir 275*cdf0e10cSrcweir return bIsPopup; 276*cdf0e10cSrcweir } 277*cdf0e10cSrcweir 278*cdf0e10cSrcweir private AccessibilityTree maTree; 279*cdf0e10cSrcweir } 280*cdf0e10cSrcweir 281*cdf0e10cSrcweir class NodeAction extends AbstractAction 282*cdf0e10cSrcweir { 283*cdf0e10cSrcweir private int mnIndex; 284*cdf0e10cSrcweir private AccessibleTreeNode maNode; 285*cdf0e10cSrcweir 286*cdf0e10cSrcweir public NodeAction( String aName, AccessibleTreeNode aNode, int nIndex ) 287*cdf0e10cSrcweir { 288*cdf0e10cSrcweir super( aName ); 289*cdf0e10cSrcweir maNode = aNode; 290*cdf0e10cSrcweir mnIndex = nIndex; 291*cdf0e10cSrcweir } 292*cdf0e10cSrcweir 293*cdf0e10cSrcweir public void actionPerformed(ActionEvent e) 294*cdf0e10cSrcweir { 295*cdf0e10cSrcweir maNode.performAction(mnIndex); 296*cdf0e10cSrcweir } 297*cdf0e10cSrcweir } 298*cdf0e10cSrcweir 299*cdf0e10cSrcweir // This action expands all shapes in the subtree rooted in the specified node. 300*cdf0e10cSrcweir class ShapeExpandAction extends AbstractAction 301*cdf0e10cSrcweir { 302*cdf0e10cSrcweir private AccessibilityTree maTree; 303*cdf0e10cSrcweir private AccTreeNode maNode; 304*cdf0e10cSrcweir public ShapeExpandAction (AccessibilityTree aTree, AccTreeNode aNode) 305*cdf0e10cSrcweir { 306*cdf0e10cSrcweir super ("Expand Shapes"); 307*cdf0e10cSrcweir maTree = aTree; 308*cdf0e10cSrcweir maNode = aNode; 309*cdf0e10cSrcweir } 310*cdf0e10cSrcweir public void actionPerformed (ActionEvent e) 311*cdf0e10cSrcweir { 312*cdf0e10cSrcweir maTree.expandShapes (maNode); 313*cdf0e10cSrcweir } 314*cdf0e10cSrcweir } 315*cdf0e10cSrcweir 316*cdf0e10cSrcweir // This action expands all nodes in the subtree rooted in the specified node. 317*cdf0e10cSrcweir class SubtreeExpandAction extends AbstractAction 318*cdf0e10cSrcweir { 319*cdf0e10cSrcweir private AccessibilityTree maTree; 320*cdf0e10cSrcweir private AccTreeNode maNode; 321*cdf0e10cSrcweir public SubtreeExpandAction (AccessibilityTree aTree, AccTreeNode aNode) 322*cdf0e10cSrcweir { 323*cdf0e10cSrcweir super ("Expand Subtree"); 324*cdf0e10cSrcweir maTree = aTree; 325*cdf0e10cSrcweir maNode = aNode; 326*cdf0e10cSrcweir } 327*cdf0e10cSrcweir public void actionPerformed (ActionEvent e) 328*cdf0e10cSrcweir { 329*cdf0e10cSrcweir maTree.expandAll (maNode); 330*cdf0e10cSrcweir } 331*cdf0e10cSrcweir } 332*cdf0e10cSrcweir 333*cdf0e10cSrcweir /** Predicate class to determine whether a node should be expanded 334*cdf0e10cSrcweir * For use with expandTree method */ 335*cdf0e10cSrcweir abstract class Expander 336*cdf0e10cSrcweir { 337*cdf0e10cSrcweir abstract public boolean expand (Object aObject); 338*cdf0e10cSrcweir } 339*cdf0e10cSrcweir 340*cdf0e10cSrcweir /** expand all nodes */ 341*cdf0e10cSrcweir class AllExpander extends Expander 342*cdf0e10cSrcweir { 343*cdf0e10cSrcweir public boolean expand(Object aObject) { return true; } 344*cdf0e10cSrcweir } 345*cdf0e10cSrcweir 346*cdf0e10cSrcweir /** expand all nodes with accessibility roles > 100 */ 347*cdf0e10cSrcweir class ShapeExpander extends Expander 348*cdf0e10cSrcweir { 349*cdf0e10cSrcweir public boolean expand (Object aObject) 350*cdf0e10cSrcweir { 351*cdf0e10cSrcweir if (aObject instanceof AccTreeNode) 352*cdf0e10cSrcweir { 353*cdf0e10cSrcweir AccTreeNode aNode = (AccTreeNode)aObject; 354*cdf0e10cSrcweir XAccessibleContext xContext = aNode.getContext(); 355*cdf0e10cSrcweir if (xContext != null) 356*cdf0e10cSrcweir if (xContext.getAccessibleRole() >= 100) 357*cdf0e10cSrcweir return true; 358*cdf0e10cSrcweir } 359*cdf0e10cSrcweir return false; 360*cdf0e10cSrcweir } 361*cdf0e10cSrcweir } 362*cdf0e10cSrcweir 363*cdf0e10cSrcweir 364*cdf0e10cSrcweir 365*cdf0e10cSrcweir protected AccessibleTreeCellRenderer 366*cdf0e10cSrcweir maCellRenderer; 367*cdf0e10cSrcweir 368*cdf0e10cSrcweir 369*cdf0e10cSrcweir private JTree 370*cdf0e10cSrcweir maTree; 371*cdf0e10cSrcweir private Canvas 372*cdf0e10cSrcweir maCanvas; 373*cdf0e10cSrcweir private boolean 374*cdf0e10cSrcweir mbFirstShapeSeen; 375*cdf0e10cSrcweir private int 376*cdf0e10cSrcweir mnExpandLevel; 377*cdf0e10cSrcweir } 378