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Diffstat (limited to 'src/statemachineqml/signaltransition_p.h')
-rw-r--r-- | src/statemachineqml/signaltransition_p.h | 128 |
1 files changed, 128 insertions, 0 deletions
diff --git a/src/statemachineqml/signaltransition_p.h b/src/statemachineqml/signaltransition_p.h new file mode 100644 index 0000000..a736444 --- /dev/null +++ b/src/statemachineqml/signaltransition_p.h @@ -0,0 +1,128 @@ +/**************************************************************************** +** +** Copyright (C) 2016 Ford Motor Company +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the QtQml module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef SIGNALTRANSITION_H +#define SIGNALTRANSITION_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 "qstatemachineqmlglobals_p.h" + +#include <QtStateMachine/QSignalTransition> +#include <QtCore/QVariant> +#include <QtQml/QJSValue> + +#include <QtQml/qqmlscriptstring.h> +#include <QtQml/qqmlparserstatus.h> +#include <private/qqmlcustomparser_p.h> +#include <private/qqmlrefcount_p.h> +#include <private/qqmlboundsignal_p.h> + +QT_BEGIN_NAMESPACE + +class Q_STATEMACHINEQML_PRIVATE_EXPORT SignalTransition : public QSignalTransition, public QQmlParserStatus +{ + Q_OBJECT + Q_INTERFACES(QQmlParserStatus) + Q_PROPERTY(QJSValue signal READ signal WRITE setSignal NOTIFY qmlSignalChanged) + Q_PROPERTY(QQmlScriptString guard READ guard WRITE setGuard NOTIFY guardChanged) + QML_ELEMENT + QML_ADDED_IN_VERSION(1, 0) + +public: + explicit SignalTransition(QState *parent = nullptr); + + QQmlScriptString guard() const; + void setGuard(const QQmlScriptString &guard); + + bool eventTest(QEvent *event) override; + void onTransition(QEvent *event) override; + + const QJSValue &signal(); + void setSignal(const QJSValue &signal); + + Q_INVOKABLE void invoke(); + +Q_SIGNALS: + void guardChanged(); + void invokeYourself(); + /*! + * \internal + */ + void qmlSignalChanged(); + +private: + void classBegin() override { m_complete = false; } + void componentComplete() override { m_complete = true; connectTriggered(); } + void connectTriggered(); + + friend class SignalTransitionParser; + QJSValue m_signal; + QQmlScriptString m_guard; + bool m_complete; + QQmlRefPointer<QV4::ExecutableCompilationUnit> m_compilationUnit; + QList<const QV4::CompiledData::Binding *> m_bindings; + QQmlRefPointer<QQmlBoundSignalExpression> m_signalExpression; +}; + +class SignalTransitionParser : public QQmlCustomParser +{ +public: + void verifyBindings(const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &props) override; + void applyBindings(QObject *object, const QQmlRefPointer<QV4::ExecutableCompilationUnit> &compilationUnit, const QList<const QV4::CompiledData::Binding *> &bindings) override; +}; + +template<> +inline QQmlCustomParser *qmlCreateCustomParser<SignalTransition>() +{ + return new SignalTransitionParser; +} + +QT_END_NAMESPACE + +#endif |