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/****************************************************************************
**
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
** Contact: http://www.qt-project.org/
**
** This file is part of the QtQml 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 "qtquick2_p.h"
#include <private/qqmlengine_p.h>
#include <private/qquickutilmodule_p.h>
#include <private/qqmlvaluetype_p.h>
#include <private/qquickitemsmodule_p.h>
#include <private/qquickparticlesmodule_p.h>
#include <private/qquickwindowmodule_p.h>
#include <private/qqmlenginedebugservice_p.h>
#include <private/qqmldebugstatesdelegate_p.h>
#include <private/qqmlbinding_p.h>
#include <private/qqmlcontext_p.h>
#include <QtQuick/private/qquickpropertychanges_p.h>
#include <QtQuick/private/qquickstate_p.h>
#include <qqmlproperty.h>
#include <QtCore/QWeakPointer>
QT_BEGIN_NAMESPACE
class QQmlQtQuick2DebugStatesDelegate : public QQmlDebugStatesDelegate
{
public:
QQmlQtQuick2DebugStatesDelegate();
virtual ~QQmlQtQuick2DebugStatesDelegate();
virtual void buildStatesList(QQmlContext *ctxt, bool cleanList);
virtual void updateBinding(QQmlContext *context,
const QQmlProperty &property,
const QVariant &expression, bool isLiteralValue,
const QString &fileName, int line, int column,
bool *isBaseState);
virtual bool setBindingForInvalidProperty(QObject *object,
const QString &propertyName,
const QVariant &expression,
bool isLiteralValue);
virtual void resetBindingForInvalidProperty(QObject *object,
const QString &propertyName);
private:
void buildStatesList(QObject *obj);
QList<QWeakPointer<QQuickState> > m_allStates;
};
QQmlQtQuick2DebugStatesDelegate::QQmlQtQuick2DebugStatesDelegate()
{
}
QQmlQtQuick2DebugStatesDelegate::~QQmlQtQuick2DebugStatesDelegate()
{
}
void QQmlQtQuick2DebugStatesDelegate::buildStatesList(QQmlContext *ctxt, bool cleanList)
{
if (cleanList)
m_allStates.clear();
QQmlContextPrivate *ctxtPriv = QQmlContextPrivate::get(ctxt);
for (int ii = 0; ii < ctxtPriv->instances.count(); ++ii) {
buildStatesList(ctxtPriv->instances.at(ii));
}
QQmlContextData *child = QQmlContextData::get(ctxt)->childContexts;
while (child) {
buildStatesList(child->asQQmlContext());
child = child->nextChild;
}
}
void QQmlQtQuick2DebugStatesDelegate::buildStatesList(QObject *obj)
{
if (QQuickState *state = qobject_cast<QQuickState *>(obj)) {
m_allStates.append(state);
}
QObjectList children = obj->children();
for (int ii = 0; ii < children.count(); ++ii) {
buildStatesList(children.at(ii));
}
}
void QQmlQtQuick2DebugStatesDelegate::updateBinding(QQmlContext *context,
const QQmlProperty &property,
const QVariant &expression, bool isLiteralValue,
const QString &fileName, int line, int column,
bool *inBaseState)
{
QObject *object = property.object();
QString propertyName = property.name();
foreach (QWeakPointer<QQuickState> statePointer, m_allStates) {
if (QQuickState *state = statePointer.data()) {
// here we assume that the revert list on itself defines the base state
if (state->isStateActive() && state->containsPropertyInRevertList(object, propertyName)) {
*inBaseState = false;
QQmlBinding *newBinding = 0;
if (!isLiteralValue) {
newBinding = new QQmlBinding(expression.toString(), object, context);
newBinding->setTarget(property);
newBinding->setNotifyOnValueChanged(true);
newBinding->setSourceLocation(fileName, line, column);
}
state->changeBindingInRevertList(object, propertyName, newBinding);
if (isLiteralValue)
state->changeValueInRevertList(object, propertyName, expression);
}
}
}
}
bool QQmlQtQuick2DebugStatesDelegate::setBindingForInvalidProperty(QObject *object,
const QString &propertyName,
const QVariant &expression,
bool isLiteralValue)
{
if (QQuickPropertyChanges *propertyChanges = qobject_cast<QQuickPropertyChanges *>(object)) {
if (isLiteralValue)
propertyChanges->changeValue(propertyName, expression);
else
propertyChanges->changeExpression(propertyName, expression.toString());
return true;
} else {
return false;
}
}
void QQmlQtQuick2DebugStatesDelegate::resetBindingForInvalidProperty(QObject *object, const QString &propertyName)
{
if (QQuickPropertyChanges *propertyChanges = qobject_cast<QQuickPropertyChanges *>(object)) {
propertyChanges->removeProperty(propertyName);
}
}
void QQmlQtQuick2Module::defineModule()
{
QQuickUtilModule::defineModule();
QQmlEnginePrivate::defineModule();
QQuickItemsModule::defineModule();
QQuickParticlesModule::defineModule();
QQuickWindowModule::defineModule();
QQmlValueTypeFactory::registerValueTypes();
if (QQmlEngineDebugService::isDebuggingEnabled()) {
QQmlEngineDebugService::instance()->setStatesDelegate(
new QQmlQtQuick2DebugStatesDelegate);
}
}
QT_END_NAMESPACE
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