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2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
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7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
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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 "AccFrameEventListener.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 #include <vcl/window.hxx>
36 #include <toolkit/awt/Vclxwindow.hxx>
37
38 #ifndef _SV_SYSDATA_HXX
39 #if defined( WIN ) || defined( WNT ) || defined( OS2 )
40 typedef sal_Int32 HWND;
41 typedef sal_Int32 HMENU;
42 typedef sal_Int32 HDC;
43 typedef void *PVOID;
44 typedef PVOID HANDLE;
45 typedef HANDLE HFONT;
46 #endif
47 #include <vcl/sysdata.hxx>
48 #endif
49
50
AccFrameEventListener(com::sun::star::accessibility::XAccessible * pAcc,AccObjectManagerAgent * Agent)51 AccFrameEventListener::AccFrameEventListener(com::sun::star::accessibility::XAccessible* pAcc, AccObjectManagerAgent* Agent)
52 :AccEventListener(pAcc, Agent)
53 {
54 }
55
~AccFrameEventListener()56 AccFrameEventListener::~AccFrameEventListener()
57 {
58 }
59
60 /**
61 * Uno's event notifier when event is captured
62 * @param AccessibleEventObject the event object which contains information about event
63 */
notifyEvent(const::com::sun::star::accessibility::AccessibleEventObject & aEvent)64 void AccFrameEventListener::notifyEvent( const ::com::sun::star::accessibility::AccessibleEventObject& aEvent )
65 throw (::com::sun::star::uno::RuntimeException)
66 {
67 switch (aEvent.EventId)
68 {
69 case AccessibleEventId::CHILD:
70 handleChildChangedEvent(aEvent.OldValue, aEvent.NewValue);
71 break;
72 case AccessibleEventId::VISIBLE_DATA_CHANGED:
73 handleVisibleDataChangedEvent();
74 break;
75 case AccessibleEventId::BOUNDRECT_CHANGED:
76 handleBoundrectChangedEvent();
77 break;
78 default:
79 AccEventListener::notifyEvent(aEvent);
80 break;
81 }
82 }
83
84 /**
85 * handle the VISIBLE_DATA_CHANGED event
86 */
handleVisibleDataChangedEvent()87 void AccFrameEventListener::handleVisibleDataChangedEvent()
88 {
89 AccEventListener::handleVisibleDataChangedEvent();
90 }
91
92 /**
93 * handle the BOUNDRECT_CHANGED event
94 */
handleBoundrectChangedEvent()95 void AccFrameEventListener::handleBoundrectChangedEvent()
96 {
97 AccEventListener::handleBoundrectChangedEvent();
98 }
99
100 /**
101 * handle the CHILD event
102 * @param oldValue the child to be deleted
103 * @param newValue the child to be added
104 */
handleChildChangedEvent(Any oldValue,Any newValue)105 void AccFrameEventListener::handleChildChangedEvent(Any oldValue, Any newValue)
106 {
107 Reference< XAccessible > xChild;
108 if( newValue >>= xChild)
109 {
110 //create a new child
111 if(xChild.is())
112 {
113 XAccessible* pAcc = xChild.get();
114
115 VCLXWindow* pvclwindow = (VCLXWindow*)pAccessible;
116 Window* window = pvclwindow->GetWindow();
117 const SystemEnvData* systemdata=window->GetSystemData();
118
119 //add this child
120 pAgent->InsertAccObj( pAcc,pAccessible,(HWND)systemdata->hWnd);
121 //add all oldValue's existing children
122 pAgent->InsertChildrenAccObj(pAcc);
123 pAgent->NotifyAccEvent(UM_EVENT_CHILD_ADDED, pAcc);
124 }
125 else
126 {}
127 }
128 else if (oldValue >>= xChild)
129 {
130 //delete a existing child
131 if(xChild.is())
132 {
133 XAccessible* pAcc = xChild.get();
134 pAgent->NotifyAccEvent(UM_EVENT_CHILD_REMOVED, pAcc);
135 //delete all oldValue's existing children
136 pAgent->DeleteChildrenAccObj( pAcc );
137 //delete this child
138 pAgent->DeleteAccObj( pAcc );
139 }
140 else
141 {}
142 }
143
144 }
145
146 /**
147 * set the new state and fire the MSAA event
148 * @param state new state id
149 * @param enable true if state is set, false if state is unset
150 */
setComponentState(short state,bool enable)151 void AccFrameEventListener::setComponentState(short state, bool enable )
152 {
153 // only the following state can be fired state event.
154 switch (state)
155 {
156 case AccessibleStateType::ICONIFIED:
157 // no msaa state
158 break;
159 case AccessibleStateType::VISIBLE:
160 // UNO !VISIBLE == MSAA INVISIBLE
161 if( enable )
162 pAgent->IncreaseState( pAccessible, AccessibleStateType::VISIBLE );
163 else
164 pAgent->DecreaseState( pAccessible, AccessibleStateType::VISIBLE );
165 break;
166 case AccessibleStateType::ACTIVE:
167 // Only frames should be active
168 // no msaa state mapping
169 break;
170 default:
171 break;
172 }
173 }
174