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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
#ifndef QQMLPROPERTY_P_H
#define QQMLPROPERTY_P_H
//
// W A R N I N G
// -------------
//
// This file is not part of the Qt API. It exists purely as an
// implementation detail. This header file may change from version to
// version without notice, or even be removed.
//
// We mean it.
//
#include "qqmlproperty.h"
#include <private/qobject_p.h>
#include <private/qqmlcontextdata_p.h>
#include <private/qqmlpropertydata_p.h>
#include <private/qqmlpropertyindex_p.h>
#include <private/qqmlrefcount_p.h>
#include <private/qtqmlglobal_p.h>
#include <QtQml/qqmlengine.h>
#include <QtCore/qpointer.h>
QT_BEGIN_NAMESPACE
class QQmlContext;
class QQmlEnginePrivate;
class QQmlJavaScriptExpression;
class QQmlMetaObject;
class QQmlAbstractBinding;
class QQmlBoundSignalExpression;
class Q_QML_EXPORT QQmlPropertyPrivate final : public QQmlRefCounted<QQmlPropertyPrivate>
{
public:
enum class InitFlag {
None = 0x0,
AllowId = 0x1,
AllowSignal = 0x2
};
Q_DECLARE_FLAGS(InitFlags, InitFlag);
QQmlRefPointer<QQmlContextData> context;
QPointer<QQmlEngine> engine;
QPointer<QObject> object;
QQmlPropertyData core;
QQmlPropertyData valueTypeData;
QString nameCache;
// ### Qt7: Get rid of this.
static bool resolveUrlsOnAssignment();
QQmlPropertyPrivate() {}
QQmlPropertyIndex encodedIndex() const
{ return encodedIndex(core, valueTypeData); }
static QQmlPropertyIndex encodedIndex(const QQmlPropertyData &core, const QQmlPropertyData &valueTypeData)
{ return QQmlPropertyIndex(core.coreIndex(), valueTypeData.coreIndex()); }
QQmlRefPointer<QQmlContextData> effectiveContext() const;
void initProperty(QObject *obj, const QString &name, InitFlags flags = InitFlag::None);
void initDefault(QObject *obj);
bool isValueType() const;
QMetaType propertyType() const;
QQmlProperty::Type type() const;
QQmlProperty::PropertyTypeCategory propertyTypeCategory() const;
QVariant readValueProperty();
bool writeValueProperty(const QVariant &, QQmlPropertyData::WriteFlags);
static QQmlMetaObject rawMetaObjectForType(QMetaType metaType);
static bool writeEnumProperty(const QMetaProperty &prop, int idx, QObject *object,
const QVariant &value, int flags);
static bool writeValueProperty(QObject *,
const QQmlPropertyData &, const QQmlPropertyData &valueTypeData,
const QVariant &, const QQmlRefPointer<QQmlContextData> &,
QQmlPropertyData::WriteFlags flags = {});
static bool resetValueProperty(QObject *,
const QQmlPropertyData &, const QQmlPropertyData &valueTypeData,
const QQmlRefPointer<QQmlContextData> &,
QQmlPropertyData::WriteFlags flags = {});
static bool write(QObject *, const QQmlPropertyData &, const QVariant &,
const QQmlRefPointer<QQmlContextData> &,
QQmlPropertyData::WriteFlags flags = {});
static bool reset(QObject *, const QQmlPropertyData &,
QQmlPropertyData::WriteFlags flags = {});
static void findAliasTarget(QObject *, QQmlPropertyIndex, QObject **, QQmlPropertyIndex *);
struct ResolvedAlias
{
QObject *targetObject;
QQmlPropertyIndex targetIndex;
};
/*!
\internal
Given an alias property specified by \a baseObject and \a baseIndex, this function
computes the alias target.
*/
static ResolvedAlias findAliasTarget(QObject *baseObject, QQmlPropertyIndex baseIndex);
enum BindingFlag {
None = 0,
DontEnable = 0x1
};
Q_DECLARE_FLAGS(BindingFlags, BindingFlag)
static void setBinding(QQmlAbstractBinding *binding, BindingFlags flags = None,
QQmlPropertyData::WriteFlags writeFlags = QQmlPropertyData::DontRemoveBinding);
static void removeBinding(const QQmlProperty &that);
static void removeBinding(QObject *o, QQmlPropertyIndex index);
static void removeBinding(QQmlAbstractBinding *b);
static QQmlAbstractBinding *binding(QObject *, QQmlPropertyIndex index);
static QQmlProperty restore(QObject *, const QQmlPropertyData &, const QQmlPropertyData *,
const QQmlRefPointer<QQmlContextData> &);
int signalIndex() const;
static inline QQmlPropertyPrivate *get(const QQmlProperty &p) { return p.d; }
// "Public" (to QML) methods
static QQmlAbstractBinding *binding(const QQmlProperty &that);
static void setBinding(const QQmlProperty &that, QQmlAbstractBinding *);
static QQmlBoundSignalExpression *signalExpression(const QQmlProperty &that);
static void setSignalExpression(const QQmlProperty &that, QQmlBoundSignalExpression *);
static void takeSignalExpression(const QQmlProperty &that, QQmlBoundSignalExpression *);
static bool write(const QQmlProperty &that, const QVariant &, QQmlPropertyData::WriteFlags);
static QQmlPropertyIndex propertyIndex(const QQmlProperty &that);
static QMetaMethod findSignalByName(const QMetaObject *mo, const QByteArray &);
static QMetaProperty findPropertyByName(const QMetaObject *mo, const QByteArray &);
static bool connect(const QObject *sender, int signal_index,
const QObject *receiver, int method_index,
int type = 0, int *types = nullptr);
static void flushSignal(const QObject *sender, int signal_index);
static QList<QUrl> urlSequence(const QVariant &value);
static QList<QUrl> urlSequence(
const QVariant &value, const QQmlRefPointer<QQmlContextData> &ctxt);
static QQmlProperty create(
QObject *target, const QString &propertyName,
const QQmlRefPointer<QQmlContextData> &context,
QQmlPropertyPrivate::InitFlags flags);
};
Q_DECLARE_OPERATORS_FOR_FLAGS(QQmlPropertyPrivate::BindingFlags)
Q_DECLARE_OPERATORS_FOR_FLAGS(QQmlPropertyPrivate::InitFlags);
QT_END_NAMESPACE
#endif // QQMLPROPERTY_P_H
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