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21 
22 #include <com/sun/star/accessibility/XAccessible.hpp>
23 #include <com/sun/star/accessibility/AccessibleStateType.hpp>
24 #include <com/sun/star/accessibility/AccessibleEventId.hpp>
25 #include <com/sun/star/accessibility/AccessibleRole.hpp>
26 #include <com/sun/star/accessibility/XAccessibleEventBroadcaster.hpp>
27 
28 #include "AccMenuEventListener.hxx"
29 #include "AccObjectManagerAgent.hxx"
30 #include "unomsaaevent.hxx"
31 
32 using namespace com::sun::star::uno;
33 using namespace com::sun::star::accessibility;
34 
35 AccMenuEventListener::AccMenuEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent)
36         :AccComponentEventListener(pAcc, Agent)
37 {}
38 AccMenuEventListener::~AccMenuEventListener()
39 {
40 }
41 
42 /**
43  *	Uno's event notifier when event is captured
44  *	@param AccessibleEventObject	the event object which contains information about event
45  */
46 void  AccMenuEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
47 throw (::com::sun::star::uno::RuntimeException)
48 {
49     switch (aEvent.EventId)
50     {
51     case AccessibleEventId::CHILD:
52         handleChildChangedEvent(aEvent.OldValue, aEvent.NewValue);
53         break;
54     case AccessibleEventId::SELECTION_CHANGED:
55         //don't need to process anything,just same as word behavior
56         //handleSelectionChangedEvent();
57         break;
58     default:
59         AccComponentEventListener::notifyEvent(aEvent);
60         break;
61     }
62 }
63 
64 /**
65  *	handle the CHILD event
66  *	@param	oldValue	the child to be deleted
67  *	@param	newValue	the child to be added
68  */
69 void AccMenuEventListener::handleChildChangedEvent(Any oldValue, Any newValue)
70 {
71 
72     Reference< XAccessible > xChild;
73     if( newValue >>= xChild)
74     {
75         //create a new child
76         if(xChild.is())
77         {
78             XAccessible* pAcc = xChild.get();
79             //add this child
80             pAgent->InsertAccObj( pAcc,pAccessible);
81             //add all oldValue's existing children
82             pAgent->InsertChildrenAccObj(pAcc);
83             pAgent->NotifyAccEvent(UM_EVENT_CHILD_ADDED, pAcc);
84         }
85         else
86         {}
87     }
88     else if (oldValue >>= xChild)
89     {
90         //delete an existing child
91         if(xChild.is())
92         {
93             XAccessible* pAcc = xChild.get();
94             pAgent->NotifyAccEvent(UM_EVENT_CHILD_REMOVED, pAcc);
95             //delete all oldValue's existing children
96             pAgent->DeleteChildrenAccObj( pAcc );
97             //delete this child
98             pAgent->DeleteAccObj( pAcc );
99         }
100         else
101         {}
102     }
103 
104 }
105 
106 /**
107  *	handle the SELECTION_CHANGED event
108  */
109 void AccMenuEventListener::handleSelectionChangedEvent()
110 {
111     pAgent->NotifyAccEvent(UM_EVENT_SELECTION_CHANGED, pAccessible);
112 }
113 
114 /**
115  *	handle the Menu_popup event
116  */
117 void AccMenuEventListener::fireStatePropertyChange(short state, bool set)
118 {
119     if( set )
120     {
121         // new value
122         switch(state)
123         {
124             //for sub menu is popup, there is a menu selected event.
125         case AccessibleStateType::SELECTED:
126             pAgent->IncreaseState( pAccessible, state);
127 
128             pAgent->UpdateChildState(pAccessible);
129             break;
130         default:
131             AccComponentEventListener::fireStatePropertyChange(state, set
132                                                                   );
133             break;
134         }
135     }
136     else
137     {
138         switch(state)
139         {
140             //for sub menu is popup, there is a menu selected event.
141         case AccessibleStateType::SELECTED:
142             pAgent->DecreaseState( pAccessible, state );
143 
144             break;
145         default:
146             AccComponentEventListener::fireStatePropertyChange(state, set
147                                                                   );
148             break;
149         }
150     }
151 }
152