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21 ** GNU General Public License Usage
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42 #ifndef QQMLBOUNDSIGNAL_P_H
43 #define QQMLBOUNDSIGNAL_P_H
49 // This file is not part of the Qt API. It exists purely as an
50 // implementation detail. This header file may change from version to
51 // version without notice, or even be removed.
56 #include "qqmlexpression.h"
58 #include <QtCore/qmetaobject.h>
60 #include <private/qqmlnotifier_p.h>
61 #include <private/qobject_p.h>
65 class Q_QML_EXPORT QQmlAbstractBoundSignal
68 QQmlAbstractBoundSignal();
69 virtual ~QQmlAbstractBoundSignal();
71 virtual int index() const = 0;
72 virtual QQmlExpression *expression() const = 0;
73 virtual QQmlExpression *setExpression(QQmlExpression *) = 0;
74 virtual QObject *object() = 0;
79 friend class QQmlData;
80 friend class QQmlPropertyPrivate;
81 friend class QQmlEngineDebugService;
82 QQmlAbstractBoundSignal **m_prevSignal;
83 QQmlAbstractBoundSignal *m_nextSignal;
86 class QQmlBoundSignalParameters;
87 class Q_QML_EXPORT QQmlBoundSignal : public QObject,
88 public QQmlAbstractBoundSignal
91 QQmlBoundSignal(QObject *scope, const QMetaMethod &signal, QObject *owner);
92 virtual ~QQmlBoundSignal();
96 QQmlExpression *expression() const;
97 QQmlExpression *setExpression(QQmlExpression *);
98 QObject *object() { return m_owner; }
100 bool isEvaluating() const { return m_isEvaluating; }
103 virtual int qt_metacall(QMetaObject::Call c, int id, void **a);
106 QQmlExpression *m_expression;
107 QMetaMethod m_signal;
108 bool m_paramsValid : 1;
109 bool m_isEvaluating : 1;
110 QQmlBoundSignalParameters *m_params;
114 class Q_QML_EXPORT QQmlBoundSignalNoParams : public QQmlAbstractBoundSignal,
115 public QQmlNotifierEndpoint
118 QQmlBoundSignalNoParams(QObject *scope, const QMetaMethod &signal, QObject *owner);
119 virtual ~QQmlBoundSignalNoParams();
123 QQmlExpression *expression() const;
124 QQmlExpression *setExpression(QQmlExpression *);
125 QObject *object() { return m_owner; }
127 static void subscriptionCallback(QQmlNotifierEndpoint *e);
129 bool isEvaluating() const { return m_isEvaluating; }
132 QQmlExpression *m_expression;
141 #endif // QQMLBOUNDSIGNAL_P_H