Qt 4.8
qaccessible_mac_carbon.cpp
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41 
43 static EventHandlerUPP applicationEventHandlerUPP = 0;
44 static EventTypeSpec application_events[] = {
45  { kEventClassAccessibility, kEventAccessibleGetChildAtPoint },
46  { kEventClassAccessibility, kEventAccessibleGetNamedAttribute }
47 };
48 
49 static CFStringRef kObjectQtAccessibility = CFSTR("com.trolltech.qt.accessibility");
50 static EventHandlerUPP objectCreateEventHandlerUPP = 0;
51 static EventTypeSpec objectCreateEvents[] = {
52  { kEventClassHIObject, kEventHIObjectConstruct },
53  { kEventClassHIObject, kEventHIObjectInitialize },
54  { kEventClassHIObject, kEventHIObjectDestruct },
55  { kEventClassHIObject, kEventHIObjectPrintDebugInfo }
56 };
57 
59 static EventHandlerUPP accessibilityEventHandlerUPP = 0;
60 static EventTypeSpec accessibilityEvents[] = {
61  { kEventClassAccessibility, kEventAccessibleGetChildAtPoint },
62  { kEventClassAccessibility, kEventAccessibleGetFocusedChild },
63  { kEventClassAccessibility, kEventAccessibleGetAllAttributeNames },
64  { kEventClassAccessibility, kEventAccessibleGetNamedAttribute },
65  { kEventClassAccessibility, kEventAccessibleSetNamedAttribute },
66  { kEventClassAccessibility, kEventAccessibleIsNamedAttributeSettable },
67  { kEventClassAccessibility, kEventAccessibleGetAllActionNames },
68  { kEventClassAccessibility, kEventAccessiblePerformNamedAction },
69  { kEventClassAccessibility, kEventAccessibleGetNamedActionDescription }
70 };
71 
73 {
76 
77  InstallHIObjectEventHandler(hiObject, accessibilityEventHandlerUPP,
78  GetEventTypeCount(accessibilityEvents),
79  accessibilityEvents, 0, 0);
80 }
81 
83 {
84  Q_UNUSED(data)
85  Q_UNUSED(event)
86  Q_UNUSED(next_ref)
87  return noErr;
88 }
89 
91 {
94  OSStatus err = HIObjectRegisterSubclass(kObjectQtAccessibility, 0, 0, objectCreateEventHandlerUPP,
95  GetEventTypeCount(objectCreateEvents), objectCreateEvents, 0, 0);
96  if (err && err != hiObjectClassExistsErr)
97  qWarning("qaccessible_mac internal error: Could not register accessibility HIObject subclass");
98 }
99 
101 {
104 
105  OSStatus err = InstallApplicationEventHandler(applicationEventHandlerUPP,
106  GetEventTypeCount(application_events), application_events,
107  0, 0);
108 
109  if (err && err != eventHandlerAlreadyInstalledErr)
110  qWarning("qaccessible_mac internal error: Could not install application accessibility event handler");
111 }
112 
113 static void removeEventhandler(EventHandlerUPP eventHandler)
114 {
115  if (eventHandler) {
116  DisposeEventHandlerUPP(eventHandler);
117  eventHandler = 0;
118  }
119 }
static EventHandlerUPP objectCreateEventHandlerUPP
const struct __CFString * CFStringRef
static void installApplicationEventhandler()
static CFStringRef kObjectQtAccessibility
EventRef event
static void installAcessibilityEventHandler(HIObjectRef hiObject)
static EventHandlerUPP accessibilityEventHandlerUPP
static EventTypeSpec accessibilityEvents[]
static EventHandlerUPP applicationEventHandlerUPP
static void registerQtAccessibilityHIObjectSubclass()
static OSStatus accessibilityEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data)
static void removeEventhandler(EventHandlerUPP eventHandler)
Q_CORE_EXPORT void qWarning(const char *,...)
static const char * data(const QByteArray &arr)
static EventTypeSpec objectCreateEvents[]
signed long OSStatus
static OSStatus applicationEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data)
struct OpaqueEventRef * EventRef
static OSStatus objectCreateEventHandler(EventHandlerCallRef next_ref, EventRef event, void *data)
static EventTypeSpec application_events[]
struct OpaqueHIObjectRef * HIObjectRef
struct OpaqueEventHandlerCallRef * EventHandlerCallRef
#define Q_UNUSED(x)
Indicates to the compiler that the parameter with the specified name is not used in the body of a fun...
Definition: qglobal.h:1729