| /**************************************************************************** |
| ** |
| ** Copyright (C) 2016 The Qt Company Ltd. |
| ** Contact: https://www.qt.io/licensing/ |
| ** |
| ** This file is part of the QtQuick 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 QQUICKSTATE_P_H |
| #define QQUICKSTATE_P_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 "qquickstate_p.h" |
| |
| #include "qquicktransitionmanager_p_p.h" |
| |
| #include <private/qqmlproperty_p.h> |
| #include <private/qqmlguard_p.h> |
| |
| #include <private/qqmlbinding_p.h> |
| |
| #include <private/qobject_p.h> |
| |
| QT_BEGIN_NAMESPACE |
| |
| class QQuickSimpleAction |
| { |
| public: |
| enum State { StartState, EndState }; |
| QQuickSimpleAction(const QQuickStateAction &a, State state = StartState) |
| { |
| m_property = a.property; |
| m_specifiedObject = a.specifiedObject; |
| m_specifiedProperty = a.specifiedProperty; |
| m_event = a.event; |
| if (state == StartState) { |
| m_value = a.fromValue; |
| if (QQmlPropertyPrivate::binding(m_property)) { |
| m_binding = QQmlPropertyPrivate::binding(m_property); |
| } |
| m_reverseEvent = true; |
| } else { |
| m_value = a.toValue; |
| m_binding = a.toBinding; |
| m_reverseEvent = false; |
| } |
| } |
| |
| ~QQuickSimpleAction() |
| { |
| } |
| |
| QQuickSimpleAction(const QQuickSimpleAction &other) |
| : m_property(other.m_property), |
| m_value(other.m_value), |
| m_binding(other.binding()), |
| m_specifiedObject(other.m_specifiedObject), |
| m_specifiedProperty(other.m_specifiedProperty), |
| m_event(other.m_event), |
| m_reverseEvent(other.m_reverseEvent) |
| { |
| } |
| |
| QQuickSimpleAction &operator =(const QQuickSimpleAction &other) |
| { |
| m_property = other.m_property; |
| m_value = other.m_value; |
| m_binding = other.binding(); |
| m_specifiedObject = other.m_specifiedObject; |
| m_specifiedProperty = other.m_specifiedProperty; |
| m_event = other.m_event; |
| m_reverseEvent = other.m_reverseEvent; |
| |
| return *this; |
| } |
| |
| void setProperty(const QQmlProperty &property) |
| { |
| m_property = property; |
| } |
| |
| const QQmlProperty &property() const |
| { |
| return m_property; |
| } |
| |
| void setValue(const QVariant &value) |
| { |
| m_value = value; |
| } |
| |
| const QVariant &value() const |
| { |
| return m_value; |
| } |
| |
| void setBinding(QQmlAbstractBinding *binding) |
| { |
| m_binding = binding; |
| } |
| |
| QQmlAbstractBinding *binding() const |
| { |
| return m_binding.data(); |
| } |
| |
| QObject *specifiedObject() const |
| { |
| return m_specifiedObject; |
| } |
| |
| const QString &specifiedProperty() const |
| { |
| return m_specifiedProperty; |
| } |
| |
| QQuickStateActionEvent *event() const |
| { |
| return m_event; |
| } |
| |
| bool reverseEvent() const |
| { |
| return m_reverseEvent; |
| } |
| |
| private: |
| QQmlProperty m_property; |
| QVariant m_value; |
| QQmlAbstractBinding::Ptr m_binding; |
| QObject *m_specifiedObject; |
| QString m_specifiedProperty; |
| QQuickStateActionEvent *m_event; |
| bool m_reverseEvent; |
| }; |
| |
| class QQuickRevertAction |
| { |
| public: |
| QQuickRevertAction() : event(nullptr) {} |
| QQuickRevertAction(const QQmlProperty &prop) : property(prop), event(nullptr) {} |
| QQuickRevertAction(QQuickStateActionEvent *e) : event(e) {} |
| QQmlProperty property; |
| QQuickStateActionEvent *event; |
| }; |
| |
| class QQuickStateOperationPrivate : public QObjectPrivate |
| { |
| Q_DECLARE_PUBLIC(QQuickStateOperation) |
| |
| public: |
| |
| QQuickStateOperationPrivate() |
| : m_state(nullptr) {} |
| |
| QQuickState *m_state; |
| }; |
| |
| class QQuickStatePrivate : public QObjectPrivate |
| { |
| Q_DECLARE_PUBLIC(QQuickState) |
| |
| public: |
| QQuickStatePrivate() |
| : when(false), whenKnown(false), named(false), inState(false), group(nullptr) {} |
| |
| typedef QList<QQuickSimpleAction> SimpleActionList; |
| |
| QString name; |
| bool when; |
| bool whenKnown; |
| bool named; |
| |
| struct OperationGuard : public QQmlGuard<QQuickStateOperation> |
| { |
| OperationGuard(QObject *obj, QList<OperationGuard> *l) : list(l) { |
| setObject(static_cast<QQuickStateOperation *>(obj)); |
| } |
| QList<OperationGuard> *list; |
| void objectDestroyed(QQuickStateOperation *) override { |
| // we assume priv will always be destroyed after objectDestroyed calls |
| list->removeOne(*this); |
| } |
| }; |
| QList<OperationGuard> operations; |
| |
| static void operations_append(QQmlListProperty<QQuickStateOperation> *prop, QQuickStateOperation *op) { |
| QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data); |
| op->setState(qobject_cast<QQuickState*>(prop->object)); |
| list->append(OperationGuard(op, list)); |
| } |
| static void operations_clear(QQmlListProperty<QQuickStateOperation> *prop) { |
| QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data); |
| for (auto &e : *list) |
| e->setState(nullptr); |
| list->clear(); |
| } |
| static int operations_count(QQmlListProperty<QQuickStateOperation> *prop) { |
| QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data); |
| return list->count(); |
| } |
| static QQuickStateOperation *operations_at(QQmlListProperty<QQuickStateOperation> *prop, int index) { |
| QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data); |
| return list->at(index); |
| } |
| static void operations_replace(QQmlListProperty<QQuickStateOperation> *prop, int index, |
| QQuickStateOperation *op) { |
| QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data); |
| auto &guard = list->at(index); |
| if (guard.object() == op) { |
| op->setState(qobject_cast<QQuickState*>(prop->object)); |
| } else { |
| list->at(index)->setState(nullptr); |
| op->setState(qobject_cast<QQuickState*>(prop->object)); |
| list->replace(index, OperationGuard(op, list)); |
| } |
| } |
| static void operations_removeLast(QQmlListProperty<QQuickStateOperation> *prop) { |
| QList<OperationGuard> *list = static_cast<QList<OperationGuard> *>(prop->data); |
| list->last()->setState(nullptr); |
| list->removeLast(); |
| } |
| |
| QQuickTransitionManager transitionManager; |
| |
| SimpleActionList revertList; |
| QList<QQuickRevertAction> reverting; |
| QString extends; |
| mutable bool inState; |
| QQuickStateGroup *group; |
| |
| QQuickStateOperation::ActionList generateActionList() const; |
| void complete(); |
| }; |
| |
| QT_END_NAMESPACE |
| |
| #endif // QQUICKSTATE_P_H |