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14  * software distributed under the License is distributed on an
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21 
22 
23 
24 package org.openoffice.java.accessibility;
25 
26 import javax.accessibility.AccessibleContext;
27 
28 import com.sun.star.uno.*;
29 import com.sun.star.accessibility.*;
30 
31 /**
32  * Specialized container for MenuBar and Popup-Menu(s)
33  * FIXME: join with Menu ?
34  */
35 public class MenuContainer extends Container implements javax.accessibility.Accessible {
36 
37     protected XAccessibleSelection unoAccessibleSelection = null;
38 
MenuContainer(javax.accessibility.AccessibleRole role, XAccessible xAccessible, XAccessibleContext xAccessibleContext)39     protected MenuContainer(javax.accessibility.AccessibleRole role, XAccessible xAccessible, XAccessibleContext xAccessibleContext) {
40         super(role, xAccessible, xAccessibleContext);
41     }
42 
43     protected class AccessibleMenuContainerListener extends AccessibleContainerListener {
44 
AccessibleMenuContainerListener()45         protected AccessibleMenuContainerListener() {
46             super();
47         }
48 
49         /** Called by OpenOffice process to notify property changes */
notifyEvent(AccessibleEventObject event)50         public void notifyEvent(AccessibleEventObject event) {
51             switch (event.EventId) {
52 
53                 // #i56539# Java 1.5 does not fire ACCESSIBLE_SELECTION_PROPERTY for menus
54                 case AccessibleEventId.SELECTION_CHANGED:
55                     break;
56 
57                 default:
58                     super.notifyEvent(event);
59             }
60         }
61     }
62 
createEventListener()63     protected XAccessibleEventListener createEventListener() {
64         return new AccessibleMenuContainerListener();
65     }
66 
67     /** Creates the AccessibleContext associated with this object */
createAccessibleContext()68     public javax.accessibility.AccessibleContext createAccessibleContext() {
69         return new AccessibleMenuContainer();
70     }
71 
72     protected class AccessibleMenuContainer extends AccessibleContainer implements javax.accessibility.AccessibleSelection {
73 
AccessibleMenuContainer()74         protected AccessibleMenuContainer() {
75             unoAccessibleSelection = (XAccessibleSelection) UnoRuntime.queryInterface(XAccessibleSelection.class,
76                     unoAccessibleContext);
77         }
78 
79         /** Returns the AccessibleSelection interface for this object */
getAccessibleSelection()80         public javax.accessibility.AccessibleSelection getAccessibleSelection() {
81             return this;
82         }
83 
84         /*
85         * AccessibleSelection
86         */
87 
88         /** Returns an Accessible representing the specified selected child of the object */
getAccessibleSelection(int i)89         public javax.accessibility.Accessible getAccessibleSelection(int i) {
90             try {
91                 return (javax.accessibility.Accessible) AccessibleObjectFactory.getAccessibleComponent(
92                     unoAccessibleSelection.getSelectedAccessibleChild(i));
93             } catch (com.sun.star.uno.Exception e) {
94                 return null;
95             }
96         }
97 
98         /** Adds the specified Accessible child of the object to the object's selection */
addAccessibleSelection(int i)99         public void addAccessibleSelection(int i) {
100             try {
101                 javax.accessibility.Accessible a = getAccessibleChild(i);
102 
103                 // selecting menu items invokes the click action in Java 1.5
104                 if( a instanceof MenuItem )
105                     a.getAccessibleContext().getAccessibleAction().doAccessibleAction(0);
106                 else
107                     unoAccessibleSelection.selectAccessibleChild(i);
108             } catch (java.lang.Exception e) {
109                 /*
110                 * Possible exceptions are:
111                 *   java.lang.NullPointerException
112                 *   com.sun.star.uno.RuntimeException
113                 *   com.sun.star.lang.IndexOutOfBoundsException
114                 */
115             }
116         }
117 
118         /** Clears the selection in the object, so that no children in the object are selected */
clearAccessibleSelection()119         public void clearAccessibleSelection() {
120             try {
121                 unoAccessibleSelection.clearAccessibleSelection();
122             } catch (com.sun.star.uno.RuntimeException e) {
123             }
124         }
125 
126         /** Returns the number of Accessible children currently selected */
getAccessibleSelectionCount()127         public int getAccessibleSelectionCount() {
128             try {
129                 return unoAccessibleSelection.getSelectedAccessibleChildCount();
130             } catch (com.sun.star.uno.RuntimeException e) {
131                 return 0;
132             }
133         }
134 
135         /** Determines if the current child of this object is selected */
isAccessibleChildSelected(int i)136         public boolean isAccessibleChildSelected(int i) {
137             try {
138                 return unoAccessibleSelection.isAccessibleChildSelected(i);
139             } catch (java.lang.Exception e) {
140                 /*
141                 * Possible exceptions are:
142                 *   java.lang.NullPointerException
143                 *   com.sun.star.uno.RuntimeException
144                 *   com.sun.star.lang.IndexOutOfBoundsException
145                 */
146                 return false;
147             }
148         }
149 
150         /** Removes the specified child of the object from the object's selection */
removeAccessibleSelection(int i)151         public void removeAccessibleSelection(int i) {
152             if (isAccessibleChildSelected(i)) {
153                 clearAccessibleSelection();
154             }
155         }
156 
157         /** Causes every child of the object to be selected if the object supports multiple selection */
selectAllAccessibleSelection()158         public void selectAllAccessibleSelection() {
159             // not supported
160         }
161     }
162 }
163 
164