| 1 | // Copyright (C) 2016 The Qt Company Ltd. |
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| 2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
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| 3 | |
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| 4 | #ifndef QQMLBIND_H |
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| 5 | #define QQMLBIND_H |
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| 6 | |
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| 7 | // |
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| 8 | // W A R N I N G |
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| 9 | // ------------- |
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| 10 | // |
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| 11 | // This file is not part of the Qt API. It exists purely as an |
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| 12 | // implementation detail. This header file may change from version to |
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| 13 | // version without notice, or even be removed. |
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| 14 | // |
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| 15 | // We mean it. |
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| 16 | // |
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| 17 | |
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| 18 | #include <private/qtqmlglobal_p.h> |
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| 19 | |
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| 20 | #include <QtQml/qqml.h> |
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| 21 | #include <QtCore/qobject.h> |
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| 22 | |
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| 23 | QT_BEGIN_NAMESPACE |
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| 24 | |
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| 25 | class QQmlBindPrivate; |
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| 26 | class Q_QML_PRIVATE_EXPORT QQmlBind : public QObject, public QQmlPropertyValueSource, public QQmlParserStatus |
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| 27 | { |
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| 28 | public: |
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| 29 | enum RestorationMode { |
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| 30 | RestoreNone = 0x0, |
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| 31 | RestoreBinding = 0x1, |
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| 32 | RestoreValue = 0x2, |
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| 33 | RestoreBindingOrValue = RestoreBinding | RestoreValue |
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| 34 | }; |
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| 35 | |
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| 36 | private: |
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| 37 | Q_OBJECT |
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| 38 | Q_DECLARE_PRIVATE(QQmlBind) |
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| 39 | Q_INTERFACES(QQmlParserStatus) |
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| 40 | Q_INTERFACES(QQmlPropertyValueSource) |
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| 41 | Q_PROPERTY(QObject *target READ object WRITE setObject) |
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| 42 | Q_PROPERTY(QString property READ property WRITE setProperty) |
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| 43 | Q_PROPERTY(QVariant value READ value WRITE setValue) |
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| 44 | Q_PROPERTY(bool when READ when WRITE setWhen) |
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| 45 | Q_PROPERTY(bool delayed READ delayed WRITE setDelayed REVISION(2, 8)) |
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| 46 | Q_PROPERTY(RestorationMode restoreMode READ restoreMode WRITE setRestoreMode |
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| 47 | NOTIFY restoreModeChanged REVISION(2, 14)) |
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| 48 | Q_ENUM(RestorationMode) |
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| 49 | QML_NAMED_ELEMENT(Binding) |
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| 50 | QML_ADDED_IN_VERSION(2, 0) |
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| 51 | Q_CLASSINFO("ImmediatePropertyNames" , "objectName,target,property,value,when,delayed,restoreMode" ); |
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| 52 | |
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| 53 | public: |
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| 54 | QQmlBind(QObject *parent=nullptr); |
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| 55 | |
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| 56 | bool when() const; |
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| 57 | void setWhen(bool); |
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| 58 | |
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| 59 | QObject *object(); |
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| 60 | void setObject(QObject *); |
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| 61 | |
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| 62 | QString property() const; |
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| 63 | void setProperty(const QString &); |
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| 64 | |
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| 65 | QVariant value() const; |
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| 66 | void setValue(const QVariant &); |
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| 67 | |
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| 68 | bool delayed() const; |
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| 69 | void setDelayed(bool); |
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| 70 | |
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| 71 | RestorationMode restoreMode() const; |
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| 72 | void setRestoreMode(RestorationMode); |
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| 73 | |
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| 74 | Q_SIGNALS: |
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| 75 | void restoreModeChanged(); |
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| 76 | |
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| 77 | protected: |
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| 78 | void setTarget(const QQmlProperty &) override; |
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| 79 | void classBegin() override; |
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| 80 | void componentComplete() override; |
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| 81 | |
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| 82 | private: |
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| 83 | void prepareEval(); |
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| 84 | void eval(); |
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| 85 | |
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| 86 | private Q_SLOTS: |
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| 87 | void targetValueChanged(); |
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| 88 | }; |
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| 89 | |
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| 90 | QT_END_NAMESPACE |
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| 91 | |
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| 92 | QML_DECLARE_TYPE(QQmlBind) |
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| 93 | |
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| 94 | #endif |
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| 95 | |
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