1 | // Copyright (C) 2016 The Qt Company Ltd. |
---|---|
2 | // SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only |
3 | |
4 | #ifndef QQMLCONTEXT_P_H |
5 | #define QQMLCONTEXT_P_H |
6 | |
7 | // |
8 | // W A R N I N G |
9 | // ------------- |
10 | // |
11 | // This file is not part of the Qt API. It exists purely as an |
12 | // implementation detail. This header file may change from version to |
13 | // version without notice, or even be removed. |
14 | // |
15 | // We mean it. |
16 | // |
17 | |
18 | #include <QtCore/qlist.h> |
19 | #include <QtCore/qstring.h> |
20 | #include <QtCore/qvariant.h> |
21 | #include <QtCore/qpointer.h> |
22 | #include <QtQml/qqmlcontext.h> |
23 | #include <QtQml/qqmllist.h> |
24 | |
25 | #include <QtCore/private/qobject_p.h> |
26 | #include <QtCore/qtaggedpointer.h> |
27 | #include <QtQml/private/qqmlrefcount_p.h> |
28 | |
29 | QT_BEGIN_NAMESPACE |
30 | |
31 | class QQmlContextData; |
32 | |
33 | class QQmlContextPrivate : public QObjectPrivate |
34 | { |
35 | Q_DECLARE_PUBLIC(QQmlContext) |
36 | public: |
37 | static QQmlContextPrivate *get(QQmlContext *context) { |
38 | return static_cast<QQmlContextPrivate *>(QObjectPrivate::get(o: context)); |
39 | } |
40 | |
41 | static QQmlContext *get(QQmlContextPrivate *context) { |
42 | return static_cast<QQmlContext *>(context->q_func()); |
43 | } |
44 | |
45 | static qsizetype context_count(QQmlListProperty<QObject> *); |
46 | static QObject *context_at(QQmlListProperty<QObject> *, qsizetype); |
47 | |
48 | void dropDestroyedQObject(const QString &name, QObject *destroyed); |
49 | |
50 | int notifyIndex() const { return m_notifyIndex; } |
51 | void setNotifyIndex(int notifyIndex) { m_notifyIndex = notifyIndex; } |
52 | |
53 | int numPropertyValues() const { |
54 | auto size = m_propertyValues.size(); |
55 | Q_ASSERT(size <= std::numeric_limits<int>::max()); |
56 | return int(size); |
57 | } |
58 | void appendPropertyValue(const QVariant &value) { m_propertyValues.append(t: value); } |
59 | void setPropertyValue(int index, const QVariant &value) { m_propertyValues[index] = value; } |
60 | QVariant propertyValue(int index) const { return m_propertyValues[index]; } |
61 | |
62 | QList<QPointer<QObject>> instances() const { return m_instances; } |
63 | void appendInstance(QObject *instance) { m_instances.append(t: instance); } |
64 | void cleanInstances() |
65 | { |
66 | for (auto it = m_instances.begin(); it != m_instances.end(); |
67 | it->isNull() ? (it = m_instances.erase(pos: it)) : ++it) {} |
68 | } |
69 | |
70 | void emitDestruction(); |
71 | |
72 | private: |
73 | friend class QQmlContextData; |
74 | |
75 | QQmlContextPrivate(QQmlContextData *data) : m_data(data) {} |
76 | QQmlContextPrivate(QQmlContext *publicContext, const QQmlRefPointer<QQmlContextData> &parent, |
77 | QQmlEngine *engine = nullptr); |
78 | |
79 | // Intentionally a bare pointer. QQmlContextData knows whether it owns QQmlContext or vice |
80 | // versa. If QQmlContext is the owner, QQmlContextData keeps an extra ref for its publicContext. |
81 | // The publicContext ref is released when doing QQmlContextData::setPublicContext(nullptr). |
82 | QQmlContextData *m_data; |
83 | |
84 | QList<QVariant> m_propertyValues; |
85 | int m_notifyIndex = -1; |
86 | |
87 | // Only used for debugging |
88 | QList<QPointer<QObject>> m_instances; |
89 | }; |
90 | |
91 | QT_END_NAMESPACE |
92 | |
93 | #endif // QQMLCONTEXT_P_H |
94 |