Examples of javax.accessibility.AccessibleContext

javax.accessibility.AccessibleContext
AccessibleContext represents the minimum information all accessible objects return. This information includes the accessible name, description, role, and state of the object, as well as information about its parent and children. AccessibleContext also contains methods for obtaining more specific accessibility information about a component. If the component supports them, these methods will return an object that implements one or more of the following interfaces:
- {@link AccessibleAction} - the object can perform one or more actions.This interface provides the standard mechanism for an assistive technology to determine what those actions are and tell the object to perform them. Any object that can be manipulated should support this interface.
- {@link AccessibleComponent} - the object has a graphical representation.This interface provides the standard mechanism for an assistive technology to determine and set the graphical representation of the object. Any object that is rendered on the screen should support this interface.
- {@link AccessibleSelection} - the object allows its children to beselected. This interface provides the standard mechanism for an assistive technology to determine the currently selected children of the object as well as modify its selection set. Any object that has children that can be selected should support this interface.
- {@link AccessibleText} - the object presents editable textual informationon the display. This interface provides the standard mechanism for an assistive technology to access that text via its content, attributes, and spatial location. Any object that contains editable text should support this interface.
- {@link AccessibleValue} - the object supports a numerical value. Thisinterface provides the standard mechanism for an assistive technology to determine and set the current value of the object, as well as obtain its minimum and maximum values. Any object that supports a numerical value should support this interface.
@beaninfo attribute: isContainer false description: Minimal information that all accessible objects return @author Peter Korn @author Hans Muller @author Willie Walker @author Lynn Monsanto


    /*
     * Class under test for AccessibleContext getAccessibleContext()
     */
    public void testGetAccessibleContext() {
        AccessibleContext c = desktop.getAccessibleContext();
        assertTrue("instanceof AccessibleJDesktopPane",
                c instanceof JDesktopPane.AccessibleJDesktopPane);
        assertTrue("AccessibleRole is ok", c.getAccessibleRole() == AccessibleRole.DESKTOP_PANE);
    }

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    /*
     * Class under test for AccessibleContext getAccessibleContext()
     */
    public void testGetAccessibleContext() {
        AccessibleContext c = applet.getAccessibleContext();


        assertTrue("instance of AccessibleJApplet",
                   c instanceof JApplet.AccessibleJApplet);
        assertTrue("AccessibleRole is ok",
                c.getAccessibleRole() == AccessibleRole.FRAME);
        assertNull("AccessibleName is ok", c.getAccessibleName());
        assertNull("AccessibleDescription is ok",
                c.getAccessibleDescription());
        assertTrue("AccessibleChildrenCount == 1",
                   c.getAccessibleChildrenCount() == 1);
    }

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        }
               


        protected void handleVisibleDataChanged() {
            if (Paragraph.this.isFocusOwner()) {
                AccessibleContext ac = accessibleContext;
                if (ac != null) {
                    AccessibleText at = ac.getAccessibleText();
                    if (at != null) {
                        int pos = at.getCaretPosition();
                        // Simulating a caret event here should help at tools
                        // that re not aware of the paragraph approach of OOo.
                        firePropertyChange(ac.ACCESSIBLE_CARET_PROPERTY,

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        public void run() {
            // Because this code is executed in the DispatchThread, it is better tocatch every
            // exception that might occur
            try {
                AccessibleContext ac = Container.this.accessibleContext;
                if (ac != null) {
                    ac.firePropertyChange(propertyName, oldValue, newValue);
                }
            } catch (java.lang.Exception e) {
                if (Build.DEBUG) {
                    System.err.println(e.getClass().getName() + " caught propagating " + propertyName + " event: " + e.getMessage());
                    e.printStackTrace();

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    /** Returns the AccessibleContext associated with this object */
    public final javax.accessibility.AccessibleContext getAccessibleContext() {
        if (accessibleContext == null) {
            try {
                AccessibleContext ac = createAccessibleContext();
                if (ac != null) {
                    // Set accessible name and description here to avoid 
                    // unnecessary property change events later ..
                    ac.setAccessibleName(unoAccessibleContext.getAccessibleName());
                    ac.setAccessibleDescription(unoAccessibleContext.getAccessibleDescription());
                    accessibleContext = ac;
                }
            } catch (com.sun.star.uno.RuntimeException e) {
            }
        }

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        public void run() {
            // Because this code is executed in the DispatchThread, it is better to catch every
            // exception that might occur
            try {
                AccessibleContext ac = accessibleContext;
                if (ac != null) {
                    ac.firePropertyChange(propertyName, oldValue, newValue);
                }
            } catch (java.lang.Exception e) {
                if (Build.DEBUG) {
                    System.err.println(e.getClass().getName() + " caught propagating " + propertyName + " event: " + e.getMessage());
                    e.printStackTrace();

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    filters[0] = new NXFilter(NXFilter.DATE, NXFilter.COLOR, NXFilter.WITHIN, 1, NXFilter.DAYS);
    filters[0].setColor(new Color(204,255,204));
  }


  private void setAccessible(JComponent c, String name, String desc, boolean toolTip) {
    AccessibleContext ac = c.getAccessibleContext();
    ac.setAccessibleName(name);
    ac.setAccessibleDescription(desc);
    if (toolTip) c.setToolTipText(desc);
  }

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      setMargin(buttonMargins);
    }
  }


  private void setAccessible(JComponent c, String name, String desc, boolean toolTip) {
    AccessibleContext ac = c.getAccessibleContext();
    ac.setAccessibleName(name);
    ac.setAccessibleDescription(desc);
    if (toolTip) c.setToolTipText(desc);
  }

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            _parent = parent;
            setAccessibleParent(_parent);
            _component = component;


            if (_component instanceof Accessible) {
                AccessibleContext ac;
                ac = ((Accessible) _component).getAccessibleContext();


                if (ac != null) {
                    ac.setAccessibleParent(this);
                }
            }
        }

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    /*
     * Class under test for AccessibleContext getAccessibleContext()
     */
    public void testGetAccessibleContext() {
        Component box = new Box(BoxLayout.LINE_AXIS);
        AccessibleContext accessible = box.getAccessibleContext();
        assertEquals("Accessible context is correct ", Box.AccessibleBox.class, accessible
                .getClass());
    }

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