Say hello to QtQuick module

This change moves the QtQuick 2 types and C++ API (including
SceneGraph) to a new module (AKA library), QtQuick.

99% of this change is moving files from src/declarative to
src/quick, and from tests/auto/declarative to
tests/auto/qtquick2.

The loading of QtQuick 2 ("import QtQuick 2.0") is now delegated to
a plugin, src/imports/qtquick2, just like it's done for QtQuick 1.

All tools, examples, and tests that use QtQuick C++ API have gotten
"QT += quick" or "QT += quick-private" added to their .pro file.

A few additional internal QtDeclarative classes had to be exported
(via Q_DECLARATIVE_PRIVATE_EXPORT) since they're needed by the
QtQuick 2 implementation.

The old header locations (e.g. QtDeclarative/qquickitem.h) will
still be supported for some time, but will produce compile-time
warnings. (To avoid the QtQuick implementation using the
compatibility headers (since QtDeclarative's includepath comes
first), a few include statements were modified, e.g. from
"#include <qsgnode.h>" to "#include <QtQuick/qsgnode.h>".)

There's a change in qtbase that automatically adds QtQuick to the
module list if QtDeclarative is used. Together with the compatibility
headers, this should help reduce the migration pain for existing
projects.

In theory, simply getting an existing QtDeclarative-based project
to compile and link shouldn't require any changes for now -- but
porting to the new scheme is of course recommended, and will
eventually become mandatory.

Task-number: QTBUG-22889
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
Change-Id: Ia52be9373172ba2f37e7623231ecb060316c96a7
Reviewed-by: Kent Hansen <kent.hansen@nokia.com>
Reviewed-by: Sergio Ahumada <sergio.ahumada@nokia.com>

1 files changed, 734 insertions, 0 deletions

diff --git a/src/quick/util/qdeclarativestate.cpp b/src/quick/util/qdeclarativestate.cpp
new file mode 100644
index 0000000000..1250c0c2b5
--- /dev/null
+++ b/src/quick/util/qdeclarativestate.cpp
@@ -0,0 +1,734 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtDeclarative module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** GNU Lesser General Public License Usage
+** This file may be used under the terms of the GNU Lesser General Public
+** License version 2.1 as published by the Free Software Foundation and
+** appearing in the file LICENSE.LGPL included in the packaging of this
+** file. Please review the following information to ensure the GNU Lesser
+** General Public License version 2.1 requirements will be met:
+** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights. These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU General
+** Public License version 3.0 as published by the Free Software Foundation
+** and appearing in the file LICENSE.GPL included in the packaging of this
+** file. Please review the following information to ensure the GNU General
+** Public License version 3.0 requirements will be met:
+** http://www.gnu.org/copyleft/gpl.html.
+**
+** Other Usage
+** Alternatively, this file may be used in accordance with the terms and
+** conditions contained in a signed written agreement between you and Nokia.
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativestate_p_p.h"
+#include "qdeclarativestate_p.h"
+
+#include "qdeclarativestategroup_p.h"
+#include "qdeclarativestateoperations_p.h"
+
+#include <private/qdeclarativeglobal_p.h>
+
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+DEFINE_BOOL_CONFIG_OPTION(stateChangeDebug, STATECHANGE_DEBUG);
+
+QDeclarativeAction::QDeclarativeAction()
+: restore(true), actionDone(false), reverseEvent(false), deletableToBinding(false), fromBinding(0), event(0),
+  specifiedObject(0)
+{
+}
+
+QDeclarativeAction::QDeclarativeAction(QObject *target, const QString &propertyName,
+               const QVariant &value)
+: restore(true), actionDone(false), reverseEvent(false), deletableToBinding(false), 
+  property(target, propertyName, qmlEngine(target)), toValue(value),
+  fromBinding(0), event(0),
+  specifiedObject(target), specifiedProperty(propertyName)
+{
+    if (property.isValid())
+        fromValue = property.read();
+}
+
+QDeclarativeAction::QDeclarativeAction(QObject *target, const QString &propertyName,
+               QDeclarativeContext *context, const QVariant &value)
+: restore(true), actionDone(false), reverseEvent(false), deletableToBinding(false),
+  property(target, propertyName, context), toValue(value),
+  fromBinding(0), event(0),
+  specifiedObject(target), specifiedProperty(propertyName)
+{
+    if (property.isValid())
+        fromValue = property.read();
+}
+
+
+QDeclarativeActionEvent::~QDeclarativeActionEvent()
+{
+}
+
+QString QDeclarativeActionEvent::typeName() const
+{
+    return QString();
+}
+
+void QDeclarativeActionEvent::execute(Reason)
+{
+}
+
+bool QDeclarativeActionEvent::isReversable()
+{
+    return false;
+}
+
+void QDeclarativeActionEvent::reverse(Reason)
+{
+}
+
+bool QDeclarativeActionEvent::changesBindings()
+{
+    return false;
+}
+
+void QDeclarativeActionEvent::clearBindings()
+{
+}
+
+bool QDeclarativeActionEvent::override(QDeclarativeActionEvent *other)
+{
+    Q_UNUSED(other);
+    return false;
+}
+
+QDeclarativeStateOperation::QDeclarativeStateOperation(QObjectPrivate &dd, QObject *parent)
+    : QObject(dd, parent)
+{
+}
+
+/*!
+    \qmlclass State QDeclarativeState
+    \inqmlmodule QtQuick 2
+    \ingroup qml-state-elements
+    \brief The State element defines configurations of objects and properties.
+
+    A \e state is a set of batched changes from the default configuration.
+
+    All items have a default state that defines the default configuration of objects
+    and property values. New states can be defined by adding State items to the \l {Item::states}{states} property to
+    allow items to switch between different configurations. These configurations
+    can, for example, be used to apply different sets of property values or execute
+    different scripts.
+
+    The following example displays a single \l Rectangle. In the default state, the rectangle
+    is colored black. In the "clicked" state, a PropertyChanges element changes the
+    rectangle's color to red. Clicking within the MouseArea toggles the rectangle's state
+    between the default state and the "clicked" state, thus toggling the color of the
+    rectangle between black and red.
+
+    \snippet doc/src/snippets/declarative/state.qml 0
+
+    Notice the default state is referred to using an empty string ("").
+
+    States are commonly used together with \l{QML Animation and Transitions}{Transitions} to provide
+    animations when state changes occur.
+
+    \note Setting the state of an object from within another state of the same object is
+    not allowed.
+
+    \sa {declarative/animation/states}{states example}, {qmlstates}{States},
+    {QML Animation and Transitions}{Transitions}, QtDeclarative
+*/
+QDeclarativeState::QDeclarativeState(QObject *parent)
+: QObject(*(new QDeclarativeStatePrivate), parent)
+{
+    Q_D(QDeclarativeState);
+    d->transitionManager.setState(this);
+}
+
+QDeclarativeState::~QDeclarativeState()
+{
+    Q_D(QDeclarativeState);
+    if (d->group)
+        d->group->removeState(this);
+}
+
+/*!
+    \qmlproperty string QtQuick2::State::name
+    This property holds the name of the state.
+
+    Each state should have a unique name within its item.
+*/
+QString QDeclarativeState::name() const
+{
+    Q_D(const QDeclarativeState);
+    return d->name;
+}
+
+void QDeclarativeState::setName(const QString &n)
+{
+    Q_D(QDeclarativeState);
+    d->name = n;
+    d->named = true;
+}
+
+bool QDeclarativeState::isNamed() const
+{
+    Q_D(const QDeclarativeState);
+    return d->named;
+}
+
+bool QDeclarativeState::isWhenKnown() const
+{
+    Q_D(const QDeclarativeState);
+    return d->when != 0;
+}
+
+/*!
+    \qmlproperty bool QtQuick2::State::when
+    This property holds when the state should be applied.
+
+    This should be set to an expression that evaluates to \c true when you want the state to
+    be applied. For example, the following \l Rectangle changes in and out of the "hidden"
+    state when the \l MouseArea is pressed:
+
+    \snippet doc/src/snippets/declarative/state-when.qml 0
+
+    If multiple states in a group have \c when clauses that evaluate to \c true
+    at the same time, the first matching state will be applied. For example, in
+    the following snippet \c state1 will always be selected rather than
+    \c state2 when sharedCondition becomes \c true.
+    \qml
+    Item {
+        states: [
+            State { name: "state1"; when: sharedCondition },
+            State { name: "state2"; when: sharedCondition }
+        ]
+        // ...
+    }
+    \endqml
+*/
+QDeclarativeBinding *QDeclarativeState::when() const
+{
+    Q_D(const QDeclarativeState);
+    return d->when;
+}
+
+void QDeclarativeState::setWhen(QDeclarativeBinding *when)
+{
+    Q_D(QDeclarativeState);
+    d->when = when;
+    if (d->group)
+        d->group->updateAutoState();
+}
+
+/*!
+    \qmlproperty string QtQuick2::State::extend
+    This property holds the state that this state extends.
+
+    When a state extends another state, it inherits all the changes of that state.
+
+    The state being extended is treated as the base state in regards to
+    the changes specified by the extending state.
+*/
+QString QDeclarativeState::extends() const
+{
+    Q_D(const QDeclarativeState);
+    return d->extends;
+}
+
+void QDeclarativeState::setExtends(const QString &extends)
+{
+    Q_D(QDeclarativeState);
+    d->extends = extends;
+}
+
+/*!
+    \qmlproperty list<Change> QtQuick2::State::changes
+    This property holds the changes to apply for this state
+    \default
+
+    By default these changes are applied against the default state. If the state
+    extends another state, then the changes are applied against the state being
+    extended.
+*/
+QDeclarativeListProperty<QDeclarativeStateOperation> QDeclarativeState::changes()
+{
+    Q_D(QDeclarativeState);
+    return QDeclarativeListProperty<QDeclarativeStateOperation>(this, &d->operations, QDeclarativeStatePrivate::operations_append,
+                                              QDeclarativeStatePrivate::operations_count, QDeclarativeStatePrivate::operations_at,
+                                              QDeclarativeStatePrivate::operations_clear);
+}
+
+int QDeclarativeState::operationCount() const
+{
+    Q_D(const QDeclarativeState);
+    return d->operations.count();
+}
+
+QDeclarativeStateOperation *QDeclarativeState::operationAt(int index) const
+{
+    Q_D(const QDeclarativeState);
+    return d->operations.at(index);
+}
+
+QDeclarativeState &QDeclarativeState::operator<<(QDeclarativeStateOperation *op)
+{
+    Q_D(QDeclarativeState);
+    d->operations.append(QDeclarativeStatePrivate::OperationGuard(op, &d->operations));
+    return *this;
+}
+
+void QDeclarativeStatePrivate::complete()
+{
+    Q_Q(QDeclarativeState);
+
+    for (int ii = 0; ii < reverting.count(); ++ii) {
+        for (int jj = 0; jj < revertList.count(); ++jj) {
+            const QDeclarativeRevertAction &revert = reverting.at(ii);
+            const QDeclarativeSimpleAction &simple = revertList.at(jj);
+            if ((revert.event && simple.event() == revert.event) ||
+                simple.property() == revert.property) {
+                revertList.removeAt(jj);
+                break;
+            }
+        }
+    }
+    reverting.clear();
+
+    if (group)
+        group->stateAboutToComplete();
+    emit q->completed();
+}
+
+// Generate a list of actions for this state.  This includes coelescing state
+// actions that this state "extends"
+QDeclarativeStateOperation::ActionList
+QDeclarativeStatePrivate::generateActionList() const
+{
+    QDeclarativeStateOperation::ActionList applyList;
+    if (inState)
+        return applyList;
+
+    // Prevent "extends" recursion
+    inState = true;
+
+    if (!extends.isEmpty()) {
+        QList<QDeclarativeState *> states = group ? group->states() : QList<QDeclarativeState *>();
+        for (int ii = 0; ii < states.count(); ++ii)
+            if (states.at(ii)->name() == extends) {
+                qmlExecuteDeferred(states.at(ii));
+                applyList = static_cast<QDeclarativeStatePrivate*>(states.at(ii)->d_func())->generateActionList();
+            }
+    }
+
+    foreach(QDeclarativeStateOperation *op, operations)
+        applyList << op->actions();
+
+    inState = false;
+    return applyList;
+}
+
+QDeclarativeStateGroup *QDeclarativeState::stateGroup() const
+{
+    Q_D(const QDeclarativeState);
+    return d->group;
+}
+
+void QDeclarativeState::setStateGroup(QDeclarativeStateGroup *group)
+{
+    Q_D(QDeclarativeState);
+    d->group = group;
+}
+
+void QDeclarativeState::cancel()
+{
+    Q_D(QDeclarativeState);
+    d->transitionManager.cancel();
+}
+
+void QDeclarativeAction::deleteFromBinding()
+{
+    if (fromBinding) {
+        QDeclarativePropertyPrivate::setBinding(property, 0);
+        fromBinding->destroy();
+        fromBinding = 0;
+    }
+}
+
+bool QDeclarativeState::containsPropertyInRevertList(QObject *target, const QString &name) const
+{
+    Q_D(const QDeclarativeState);
+
+    if (isStateActive()) {
+        QListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+        while (revertListIterator.hasNext()) {
+            const QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+            if (simpleAction.specifiedObject() == target && simpleAction.specifiedProperty() == name)
+                return true;
+        }
+    }
+
+    return false;
+}
+
+bool QDeclarativeState::changeValueInRevertList(QObject *target, const QString &name, const QVariant &revertValue)
+{
+    Q_D(QDeclarativeState);
+
+    if (isStateActive()) {
+        QMutableListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+        while (revertListIterator.hasNext()) {
+            QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+            if (simpleAction.specifiedObject() == target && simpleAction.specifiedProperty() == name) {
+                    simpleAction.setValue(revertValue);
+                    return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+bool QDeclarativeState::changeBindingInRevertList(QObject *target, const QString &name, QDeclarativeAbstractBinding *binding)
+{
+    Q_D(QDeclarativeState);
+
+    if (isStateActive()) {
+        QMutableListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+        while (revertListIterator.hasNext()) {
+            QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+            if (simpleAction.specifiedObject() == target && simpleAction.specifiedProperty() == name) {
+                if (simpleAction.binding())
+                    simpleAction.binding()->destroy();
+
+                simpleAction.setBinding(binding);
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+bool QDeclarativeState::removeEntryFromRevertList(QObject *target, const QString &name)
+{
+    Q_D(QDeclarativeState);
+
+    if (isStateActive()) {
+        QMutableListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+        while (revertListIterator.hasNext()) {
+            QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+            if (simpleAction.property().object() == target && simpleAction.property().name() == name) {
+                QDeclarativeAbstractBinding *oldBinding = QDeclarativePropertyPrivate::binding(simpleAction.property());
+                if (oldBinding) {
+                    QDeclarativePropertyPrivate::setBinding(simpleAction.property(), 0);
+                    oldBinding->destroy();
+                }
+
+                simpleAction.property().write(simpleAction.value());
+                if (simpleAction.binding())
+                    QDeclarativePropertyPrivate::setBinding(simpleAction.property(), simpleAction.binding());
+
+                revertListIterator.remove();
+                return true;
+            }
+        }
+    }
+
+    return false;
+}
+
+void QDeclarativeState::addEntryToRevertList(const QDeclarativeAction &action)
+{
+    Q_D(QDeclarativeState);
+
+    QDeclarativeSimpleAction simpleAction(action);
+
+    d->revertList.append(simpleAction);
+}
+
+void QDeclarativeState::removeAllEntriesFromRevertList(QObject *target)
+{
+     Q_D(QDeclarativeState);
+
+     if (isStateActive()) {
+         QMutableListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+         while (revertListIterator.hasNext()) {
+             QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+             if (simpleAction.property().object() == target) {
+                 QDeclarativeAbstractBinding *oldBinding = QDeclarativePropertyPrivate::binding(simpleAction.property());
+                 if (oldBinding) {
+                     QDeclarativePropertyPrivate::setBinding(simpleAction.property(), 0);
+                     oldBinding->destroy();
+                 }
+
+                 simpleAction.property().write(simpleAction.value());
+                 if (simpleAction.binding())
+                     QDeclarativePropertyPrivate::setBinding(simpleAction.property(), simpleAction.binding());
+
+                 revertListIterator.remove();
+             }
+         }
+     }
+}
+
+void QDeclarativeState::addEntriesToRevertList(const QList<QDeclarativeAction> &actionList)
+{
+    Q_D(QDeclarativeState);
+    if (isStateActive()) {
+        QList<QDeclarativeSimpleAction> simpleActionList;
+
+        QListIterator<QDeclarativeAction> actionListIterator(actionList);
+        while(actionListIterator.hasNext()) {
+            const QDeclarativeAction &action = actionListIterator.next();
+            QDeclarativeSimpleAction simpleAction(action);
+            action.property.write(action.toValue);
+            if (!action.toBinding.isNull()) {
+                QDeclarativeAbstractBinding *oldBinding = QDeclarativePropertyPrivate::binding(simpleAction.property());
+                if (oldBinding)
+                    QDeclarativePropertyPrivate::setBinding(simpleAction.property(), 0);
+                QDeclarativePropertyPrivate::setBinding(simpleAction.property(), action.toBinding.data(), QDeclarativePropertyPrivate::DontRemoveBinding);
+            }
+
+            simpleActionList.append(simpleAction);
+        }
+
+        d->revertList.append(simpleActionList);
+    }
+}
+
+QVariant QDeclarativeState::valueInRevertList(QObject *target, const QString &name) const
+{
+    Q_D(const QDeclarativeState);
+
+    if (isStateActive()) {
+        QListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+        while (revertListIterator.hasNext()) {
+            const QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+            if (simpleAction.specifiedObject() == target && simpleAction.specifiedProperty() == name)
+                return simpleAction.value();
+        }
+    }
+
+    return QVariant();
+}
+
+QDeclarativeAbstractBinding *QDeclarativeState::bindingInRevertList(QObject *target, const QString &name) const
+{
+    Q_D(const QDeclarativeState);
+
+    if (isStateActive()) {
+        QListIterator<QDeclarativeSimpleAction> revertListIterator(d->revertList);
+
+        while (revertListIterator.hasNext()) {
+            const QDeclarativeSimpleAction &simpleAction = revertListIterator.next();
+            if (simpleAction.specifiedObject() == target && simpleAction.specifiedProperty() == name)
+                return simpleAction.binding();
+        }
+    }
+
+    return 0;
+}
+
+bool QDeclarativeState::isStateActive() const
+{
+    return stateGroup() && stateGroup()->state() == name();
+}
+
+void QDeclarativeState::apply(QDeclarativeTransition *trans, QDeclarativeState *revert)
+{
+    Q_D(QDeclarativeState);
+
+    qmlExecuteDeferred(this);
+
+    cancel();
+    if (revert)
+        revert->cancel();
+    d->revertList.clear();
+    d->reverting.clear();
+
+    if (revert) {
+        QDeclarativeStatePrivate *revertPrivate =
+            static_cast<QDeclarativeStatePrivate*>(revert->d_func());
+        d->revertList = revertPrivate->revertList;
+        revertPrivate->revertList.clear();
+    }
+
+    // List of actions caused by this state
+    QDeclarativeStateOperation::ActionList applyList = d->generateActionList();
+
+    // List of actions that need to be reverted to roll back (just) this state
+    QDeclarativeStatePrivate::SimpleActionList additionalReverts;
+    // First add the reverse of all the applyList actions
+    for (int ii = 0; ii < applyList.count(); ++ii) {
+        QDeclarativeAction &action = applyList[ii];
+
+        if (action.event) {
+            if (!action.event->isReversable())
+                continue;
+            bool found = false;
+            for (int jj = 0; jj < d->revertList.count(); ++jj) {
+                QDeclarativeActionEvent *event = d->revertList.at(jj).event();
+                if (event && event->typeName() == action.event->typeName()) {
+                    if (action.event->override(event)) {
+                        found = true;
+
+                        if (action.event != d->revertList.at(jj).event() && action.event->needsCopy()) {
+                            action.event->copyOriginals(d->revertList.at(jj).event());
+
+                            QDeclarativeSimpleAction r(action);
+                            additionalReverts << r;
+                            d->revertList.removeAt(jj);
+                            --jj;
+                        } else if (action.event->isRewindable())    //###why needed?
+                            action.event->saveCurrentValues();
+
+                        break;
+                    }
+                }
+            }
+            if (!found) {
+                action.event->saveOriginals();
+                // Only need to revert the applyList action if the previous
+                // state doesn't have a higher priority revert already
+                QDeclarativeSimpleAction r(action);
+                additionalReverts << r;
+            }
+        } else {
+            bool found = false;
+            action.fromBinding = QDeclarativePropertyPrivate::binding(action.property);
+
+            for (int jj = 0; jj < d->revertList.count(); ++jj) {
+                if (d->revertList.at(jj).property() == action.property) {
+                    found = true;
+                    if (d->revertList.at(jj).binding() != action.fromBinding) {
+                        action.deleteFromBinding();
+                    }
+                    break;
+                }
+            }
+
+            if (!found) {
+                if (!action.restore) {
+                    action.deleteFromBinding();;
+                } else {
+                    // Only need to revert the applyList action if the previous
+                    // state doesn't have a higher priority revert already
+                    QDeclarativeSimpleAction r(action);
+                    additionalReverts << r;
+                }
+            }
+        }
+    }
+
+    // Any reverts from a previous state that aren't carried forth
+    // into this state need to be translated into apply actions
+    for (int ii = 0; ii < d->revertList.count(); ++ii) {
+        bool found = false;
+        if (d->revertList.at(ii).event()) {
+            QDeclarativeActionEvent *event = d->revertList.at(ii).event();
+            if (!event->isReversable())
+                continue;
+            for (int jj = 0; !found && jj < applyList.count(); ++jj) {
+                const QDeclarativeAction &action = applyList.at(jj);
+                if (action.event && action.event->typeName() == event->typeName()) {
+                    if (action.event->override(event))
+                        found = true;
+                }
+            }
+        } else {
+            for (int jj = 0; !found && jj < applyList.count(); ++jj) {
+                const QDeclarativeAction &action = applyList.at(jj);
+                if (action.property == d->revertList.at(ii).property())
+                    found = true;
+            }
+        }
+        if (!found) {
+            QVariant cur = d->revertList.at(ii).property().read();
+            QDeclarativeAbstractBinding *delBinding = 
+                QDeclarativePropertyPrivate::setBinding(d->revertList.at(ii).property(), 0);
+            if (delBinding)
+                delBinding->destroy();
+
+            QDeclarativeAction a;
+            a.property = d->revertList.at(ii).property();
+            a.fromValue = cur;
+            a.toValue = d->revertList.at(ii).value();
+            a.toBinding = QDeclarativeAbstractBinding::getPointer(d->revertList.at(ii).binding());
+            a.specifiedObject = d->revertList.at(ii).specifiedObject();
+            a.specifiedProperty = d->revertList.at(ii).specifiedProperty();
+            a.event = d->revertList.at(ii).event();
+            a.reverseEvent = d->revertList.at(ii).reverseEvent();
+            if (a.event && a.event->isRewindable())
+                a.event->saveCurrentValues();
+            applyList << a;
+            // Store these special reverts in the reverting list
+            if (a.event)
+                d->reverting << a.event;
+            else
+                d->reverting << a.property;
+        }
+    }
+    // All the local reverts now become part of the ongoing revertList
+    d->revertList << additionalReverts;
+
+#ifndef QT_NO_DEBUG_STREAM
+    // Output for debugging
+    if (stateChangeDebug()) {
+        foreach(const QDeclarativeAction &action, applyList) {
+            if (action.event)
+                qWarning() << "    QDeclarativeAction event:" << action.event->typeName();
+            else
+                qWarning() << "    QDeclarativeAction:" << action.property.object()
+                           << action.property.name() << "From:" << action.fromValue 
+                           << "To:" << action.toValue;
+        }
+    }
+#endif
+
+    d->transitionManager.transition(applyList, trans);
+}
+
+QDeclarativeStateOperation::ActionList QDeclarativeStateOperation::actions()
+{
+    return ActionList();
+}
+
+QDeclarativeState *QDeclarativeStateOperation::state() const
+{
+    Q_D(const QDeclarativeStateOperation);
+    return d->m_state;
+}
+
+void QDeclarativeStateOperation::setState(QDeclarativeState *state)
+{
+    Q_D(QDeclarativeStateOperation);
+    d->m_state = state;
+}
+
+QT_END_NAMESPACE