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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 insert(QObject *object, QAccessibleInterface *iface) const;
76 void deleteInterface(QAccessible::Id id, QObject *obj = nullptr);
77
78#ifdef Q_OS_MAC
79 QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *elementForId(QAccessible::Id axid) const;
80 void insertElement(QAccessible::Id axid, QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *element) const;
81#endif
82
83private Q_SLOTS:
84 void objectDestroyed(QObject *obj);
85
86private:
87 QAccessible::Id acquireId() const;
88
89 mutable QHash<QAccessible::Id, QAccessibleInterface *> idToInterface;
90 mutable QHash<QAccessibleInterface *, QAccessible::Id> interfaceToId;
91 mutable QHash<QObject *, QAccessible::Id> objectToId;
92
93#ifdef Q_OS_MAC
94 void removeCocoaElement(QAccessible::Id axid);
95 mutable QHash<QAccessible::Id, QT_MANGLE_NAMESPACE(QMacAccessibilityElement) *> cocoaElements;
96#endif
97
98 friend class QAccessible;
99 friend class QAccessibleInterface;
100};
101
102QT_END_NAMESPACE
103
104#endif // QT_NO_ACCESSIBILITY
105
106#endif
107

source code of qtbase/src/gui/accessible/qaccessiblecache_p.h