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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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11 * http://www.apache.org/licenses/LICENSE-2.0
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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 "AccWindowEventListener.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
AccWindowEventListener(com::sun::star::accessibility::XAccessible * pAcc,AccObjectManagerAgent * Agent)35 AccWindowEventListener::AccWindowEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent)
36 :AccEventListener(pAcc, Agent)
37 {}
~AccWindowEventListener()38 AccWindowEventListener::~AccWindowEventListener()
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 */
notifyEvent(const::com::sun::star::accessibility::AccessibleEventObject & aEvent)46 void AccWindowEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent ) throw (::com::sun::star::uno::RuntimeException)
47 {
48 switch (aEvent.EventId)
49 {
50 case AccessibleEventId::CHILD:
51 handleChildChangedEvent(aEvent.OldValue, aEvent.NewValue);
52 break;
53 case AccessibleEventId::VISIBLE_DATA_CHANGED:
54 handleVisibleDataChangedEvent();
55 break;
56 case AccessibleEventId::BOUNDRECT_CHANGED:
57 handleBoundrectChangedEvent();
58 break;
59 default:
60 AccEventListener::notifyEvent(aEvent);
61 break;
62 }
63 }
64
65 /**
66 * handle the VISIBLE_DATA_CHANGED event
67 */
handleVisibleDataChangedEvent()68 void AccWindowEventListener::handleVisibleDataChangedEvent()
69 {
70 AccEventListener::handleVisibleDataChangedEvent();
71 }
72
73 /**
74 * handle the BOUNDRECT_CHANGED event
75 */
handleBoundrectChangedEvent()76 void AccWindowEventListener::handleBoundrectChangedEvent()
77 {
78 AccEventListener::handleBoundrectChangedEvent();
79 }
80
81 /**
82 * handle the CHILD event
83 * @param oldValue the child to be deleted
84 * @param newValue the child to be added
85 */
handleChildChangedEvent(Any oldValue,Any newValue)86 void AccWindowEventListener::handleChildChangedEvent(Any oldValue, Any newValue)
87 {
88 Reference< XAccessible > xChild;
89 if( newValue >>= xChild)
90 {
91 //create a new child
92 if(xChild.is())
93 {
94 XAccessible* pAcc = xChild.get();
95 //add this child
96 pAgent->InsertAccObj( pAcc,pAccessible);
97 //add all oldValue's existing children
98 pAgent->InsertChildrenAccObj(pAcc);
99 pAgent->NotifyAccEvent(UM_EVENT_CHILD_ADDED, pAcc);
100 }
101 else
102 {}
103 }
104 else if (oldValue >>= xChild)
105 {
106 //delete a existing child
107 if(xChild.is())
108 {
109 XAccessible* pAcc = xChild.get();
110 pAgent->NotifyAccEvent(UM_EVENT_CHILD_REMOVED, pAcc);
111 pAgent->DeleteChildrenAccObj( pAcc );
112 //delete this child
113 pAgent->DeleteAccObj( pAcc );
114 }
115 else
116 {}
117 }
118 }
119
120 /**
121 * set the new state and fire the MSAA event
122 * @param state new state id
123 * @param enable true if state is set, false if state is unset
124 */
setComponentState(short state,bool enable)125 void AccWindowEventListener::setComponentState(short state, bool enable )
126 {
127 // only the following state can be fired state event.
128 switch (state)
129 {
130 case AccessibleStateType::ICONIFIED:
131 // no msaa state
132 break;
133 case AccessibleStateType::VISIBLE:
134 // UNO !VISIBLE == MSAA INVISIBLE
135 if( enable )
136 pAgent->IncreaseState( pAccessible, AccessibleStateType::VISIBLE );
137 else
138 pAgent->DecreaseState( pAccessible, AccessibleStateType::VISIBLE );
139 break;
140 case AccessibleStateType::SHOWING:
141 // UNO !SHOWING == MSAA OFFSCREEN
142 if( enable )
143 {
144 pAgent->IncreaseState( pAccessible, AccessibleStateType::SHOWING );
145 }
146 else
147 pAgent->DecreaseState( pAccessible, AccessibleStateType::SHOWING );
148 break;
149 default:
150 break;
151 }
152 }
153