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39
40#ifndef QACCESSIBLECACHE_P
41#define QACCESSIBLECACHE_P
42
43//
44// W A R N I N G
45// -------------
46//
47// This file is not part of the Qt API. It exists purely as an
48// implementation detail. This header file may change from version to
49// version without notice, or even be removed.
50//
51// We mean it.
52//
53
54#include <QtGui/private/qtguiglobal_p.h>
55#include <QtCore/qobject.h>
56#include <QtCore/qhash.h>
57
58#include "qaccessible.h"
59
60#ifndef QT_NO_ACCESSIBILITY
61
62Q_FORWARD_DECLARE_OBJC_CLASS(QT_MANGLE_NAMESPACE(QMacAccessibilityElement));
63
64QT_BEGIN_NAMESPACE
65
66class Q_GUI_EXPORT QAccessibleCache :public QObject
67{
68 Q_OBJECT
69
70public:
71 ~QAccessibleCache() override;
72 static QAccessibleCache *instance();
73 QAccessibleInterface *interfaceForId(QAccessible::Id id) const;
74 QAccessible::Id idForInterface(QAccessibleInterface *iface) const;
75 QAccessible::Id idForObject(QObject *obj) const;
76 bool containsObject(QObject *obj) const;
77 QAccessible::Id insert(QObject *object, QAccessibleInterface *iface) const;
78 void deleteInterface(QAccessible::Id id, QObject *obj = nullptr);
79
80#ifdef Q_OS_MAC
81 QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *elementForId(QAccessible::Id axid) const;
82 void insertElement(QAccessible::Id axid, QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *element) const;
83#endif
84
85private Q_SLOTS:
86 void objectDestroyed(QObject *obj);
87
88private:
89 QAccessible::Id acquireId() const;
90
91 mutable QHash<QAccessible::Id, QAccessibleInterface *> idToInterface;
92 mutable QHash<QAccessibleInterface *, QAccessible::Id> interfaceToId;
93 mutable QMultiHash<QObject *, QPair<QAccessible::Id, const QMetaObject*>> objectToId;
94
95#ifdef Q_OS_MAC
96 void removeCocoaElement(QAccessible::Id axid);
97 mutable QHash<QAccessible::Id, QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *> cocoaElements;
98#endif
99
100 friend class QAccessible;
101 friend class QAccessibleInterface;
102};
103
104QT_END_NAMESPACE
105
106#endif // QT_NO_ACCESSIBILITY
107
108#endif
109