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39 | |
40 | #ifndef SIGNALTRANSITION_H |
41 | #define SIGNALTRANSITION_H |
42 | |
43 | #include <QtCore/QSignalTransition> |
44 | #include <QtCore/QVariant> |
45 | #include <QtQml/QJSValue> |
46 | |
47 | #include <QtQml/qqmlscriptstring.h> |
48 | #include <QtQml/qqmlparserstatus.h> |
49 | #include <private/qqmlcustomparser_p.h> |
50 | #include <private/qqmlboundsignalexpressionpointer_p.h> |
51 | |
52 | QT_BEGIN_NAMESPACE |
53 | |
54 | class SignalTransition : public QSignalTransition, public QQmlParserStatus |
55 | { |
56 | Q_OBJECT |
57 | Q_INTERFACES(QQmlParserStatus) |
58 | Q_PROPERTY(QJSValue signal READ signal WRITE setSignal NOTIFY qmlSignalChanged) |
59 | Q_PROPERTY(QQmlScriptString guard READ guard WRITE setGuard NOTIFY guardChanged) |
60 | QML_ELEMENT |
61 | |
62 | public: |
63 | explicit SignalTransition(QState *parent = nullptr); |
64 | |
65 | QQmlScriptString guard() const; |
66 | void setGuard(const QQmlScriptString &guard); |
67 | |
68 | bool eventTest(QEvent *event) override; |
69 | void onTransition(QEvent *event) override; |
70 | |
71 | const QJSValue &signal(); |
72 | void setSignal(const QJSValue &signal); |
73 | |
74 | Q_INVOKABLE void invoke(); |
75 | |
76 | Q_SIGNALS: |
77 | void guardChanged(); |
78 | void invokeYourself(); |
79 | /*! |
80 | * \internal |
81 | */ |
82 | void qmlSignalChanged(); |
83 | |
84 | private: |
85 | void classBegin() override { m_complete = false; } |
86 | void componentComplete() override { m_complete = true; connectTriggered(); } |
87 | void connectTriggered(); |
88 | |
89 | friend class SignalTransitionParser; |
90 | QJSValue m_signal; |
91 | QQmlScriptString m_guard; |
92 | bool m_complete; |
93 | QQmlRefPointer<QV4::ExecutableCompilationUnit> m_compilationUnit; |
94 | QList<const QV4::CompiledData::Binding *> m_bindings; |
95 | QQmlBoundSignalExpressionPointer m_signalExpression; |
96 | }; |
97 | |
98 | class SignalTransitionParser : public QQmlCustomParser |
99 | { |
100 | public: |
101 | void verifyBindings(const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &props) override; |
102 | void applyBindings(QObject *object, const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &bindings) override; |
103 | }; |
104 | |
105 | template<> |
106 | inline QQmlCustomParser *qmlCreateCustomParser<SignalTransition>() |
107 | { |
108 | return new SignalTransitionParser; |
109 | } |
110 | |
111 | QT_END_NAMESPACE |
112 | |
113 | #endif |
114 |