diff options
Diffstat (limited to 'src/declarative/qml/qdeclarativenotifier.cpp')
-rw-r--r-- | src/declarative/qml/qdeclarativenotifier.cpp | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/src/declarative/qml/qdeclarativenotifier.cpp b/src/declarative/qml/qdeclarativenotifier.cpp new file mode 100644 index 00000000..64731dee --- /dev/null +++ b/src/declarative/qml/qdeclarativenotifier.cpp @@ -0,0 +1,126 @@ +/**************************************************************************** +** +** Copyright (C) 2012 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 "private/qdeclarativenotifier_p.h" +#include "private/qdeclarativeproperty_p.h" + +QT_BEGIN_NAMESPACE + +void QDeclarativeNotifier::emitNotify(QDeclarativeNotifierEndpoint *endpoint) +{ + QDeclarativeNotifierEndpoint::Notifier *n = endpoint->asNotifier(); + + QDeclarativeNotifierEndpoint **oldDisconnected = n->disconnected; + n->disconnected = &endpoint; + + if (n->next) + emitNotify(n->next); + + if (endpoint) { + void *args[] = { 0 }; + + QMetaObject::metacall(endpoint->target, QMetaObject::InvokeMetaMethod, + endpoint->targetMethod, args); + + if (endpoint) + endpoint->asNotifier()->disconnected = oldDisconnected; + } + + if (oldDisconnected) *oldDisconnected = endpoint; +} + +void QDeclarativeNotifierEndpoint::connect(QObject *source, int sourceSignal) +{ + Signal *s = toSignal(); + + if (s->source == source && s->sourceSignal == sourceSignal) + return; + + disconnect(); + + QDeclarativePropertyPrivate::connect(source, sourceSignal, target, targetMethod); + + s->source = source; + s->sourceSignal = sourceSignal; +} + +void QDeclarativeNotifierEndpoint::copyAndClear(QDeclarativeNotifierEndpoint &other) +{ + other.disconnect(); + + other.target = target; + other.targetMethod = targetMethod; + + if (!isConnected()) + return; + + if (SignalType == type) { + Signal *other_s = other.toSignal(); + Signal *s = asSignal(); + + other_s->source = s->source; + other_s->sourceSignal = s->sourceSignal; + s->source = 0; + } else if(NotifierType == type) { + Notifier *other_n = other.toNotifier(); + Notifier *n = asNotifier(); + + other_n->notifier = n->notifier; + other_n->disconnected = n->disconnected; + if (other_n->disconnected) *other_n->disconnected = &other; + + if (n->next) { + other_n->next = n->next; + n->next->asNotifier()->prev = &other_n->next; + } + other_n->prev = n->prev; + *other_n->prev = &other; + + n->prev = 0; + n->next = 0; + n->disconnected = 0; + n->notifier = 0; + } +} + + +QT_END_NAMESPACE + |