1// Copyright (C) 2018 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 QOPCUA_OPCUAMETHODNODE_P_H
5#define QOPCUA_OPCUAMETHODNODE_P_H
6
7#include <private/opcuanode_p.h>
8#include <private/opcuamethodargument_p.h>
9#include <private/opcuastatus_p.h>
10
11#include <QQmlListProperty>
12#include <QList>
13
14//
15// W A R N I N G
16// -------------
17//
18// This file is not part of the Qt API. It exists purely as an
19// implementation detail. This header file may change from version to
20// version without notice, or even be removed.
21//
22// We mean it.
23//
24
25QT_BEGIN_NAMESPACE
26
27class OpcUaNodeIdType;
28
29class OpcUaMethodNode : public OpcUaNode
30{
31 Q_OBJECT
32 Q_PROPERTY(OpcUaNodeIdType* objectNodeId READ objectNodeId WRITE setObjectNodeId NOTIFY objectNodeIdChanged)
33 Q_PROPERTY(QQmlListProperty<OpcUaMethodArgument> inputArguments READ inputArguments NOTIFY inputArgumentsChanged)
34 Q_PROPERTY(QVariantList outputArguments READ outputArguments NOTIFY outputArgumentsChanged)
35 Q_PROPERTY(OpcUaStatus resultStatus READ resultStatus NOTIFY resultStatusChanged)
36
37 QML_NAMED_ELEMENT(MethodNode)
38 QML_ADDED_IN_VERSION(5, 12)
39
40public:
41 OpcUaMethodNode(QObject *parent = nullptr);
42 OpcUaNodeIdType *objectNodeId() const;
43
44 QQmlListProperty<OpcUaMethodArgument> inputArguments();
45 QVariantList outputArguments();
46 OpcUaStatus resultStatus() const;
47
48public slots:
49 void setObjectNodeId(OpcUaNodeIdType *nodeId);
50 void callMethod();
51
52signals:
53 void objectNodeIdChanged();
54 void inputArgumentsChanged();
55 void outputArgumentsChanged();
56
57 void resultStatusChanged(OpcUaStatus status);
58
59private slots:
60 void handleObjectNodeIdChanged();
61 void handleMethodCallFinished(QString methodNodeId, QVariant result, QOpcUa::UaStatusCode statusCode);
62
63private:
64 void setupNode(const QString &absolutePath) override;
65 bool checkValidity() override;
66
67 static void appendArgument(QQmlListProperty<OpcUaMethodArgument>*, OpcUaMethodArgument *);
68 static qsizetype argumentCount(QQmlListProperty<OpcUaMethodArgument>*);
69 static OpcUaMethodArgument* argument(QQmlListProperty<OpcUaMethodArgument>*, qsizetype);
70 static void clearArguments(QQmlListProperty<OpcUaMethodArgument>*);
71
72private:
73 OpcUaNodeIdType *m_objectNodeId = nullptr;
74 OpcUaNode *m_objectNode = nullptr;
75 QList<OpcUaMethodArgument*> m_inputArguments;
76 QVariantList m_outputArguments;
77 OpcUaStatus m_resultStatus;
78};
79
80QT_END_NAMESPACE
81
82#endif // QOPCUA_OPCUAMETHODNODE_P_H
83

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source code of qtopcua/src/declarative_opcua/opcuamethodnode_p.h