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129 lines
4.1 KiB
C++
129 lines
4.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtDeclarative module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qdeclarativenotifier_p.h"
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#include "qdeclarativeproperty_p.h"
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QT_BEGIN_NAMESPACE
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void QDeclarativeNotifier::emitNotify(QDeclarativeNotifierEndpoint *endpoint)
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{
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QDeclarativeNotifierEndpoint::Notifier *n = endpoint->asNotifier();
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QDeclarativeNotifierEndpoint **oldDisconnected = n->disconnected;
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n->disconnected = &endpoint;
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if (n->next)
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emitNotify(n->next);
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if (endpoint) {
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void *args[] = { 0 };
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QMetaObject::metacall(endpoint->target, QMetaObject::InvokeMetaMethod,
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endpoint->targetMethod, args);
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if (endpoint)
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endpoint->asNotifier()->disconnected = oldDisconnected;
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}
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if (oldDisconnected) *oldDisconnected = endpoint;
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}
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void QDeclarativeNotifierEndpoint::connect(QObject *source, int sourceSignal)
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{
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Signal *s = toSignal();
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if (s->source == source && s->sourceSignal == sourceSignal) {
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refCount++;
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return;
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}
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disconnect();
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QDeclarativePropertyPrivate::connect(source, sourceSignal, target, targetMethod);
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s->source = source;
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s->sourceSignal = sourceSignal;
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refCount++;
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}
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void QDeclarativeNotifierEndpoint::copyAndClear(QDeclarativeNotifierEndpoint &other)
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{
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other.disconnect();
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other.target = target;
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other.targetMethod = targetMethod;
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if (!isConnected())
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return;
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if (SignalType == type) {
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Signal *other_s = other.toSignal();
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Signal *s = asSignal();
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other_s->source = s->source;
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other_s->sourceSignal = s->sourceSignal;
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s->source = 0;
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} else if(NotifierType == type) {
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Notifier *other_n = other.toNotifier();
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Notifier *n = asNotifier();
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other_n->notifier = n->notifier;
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other_n->disconnected = n->disconnected;
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if (other_n->disconnected) *other_n->disconnected = &other;
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if (n->next) {
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other_n->next = n->next;
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n->next->asNotifier()->prev = &other_n->next;
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}
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other_n->prev = n->prev;
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*other_n->prev = &other;
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n->prev = 0;
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n->next = 0;
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n->disconnected = 0;
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n->notifier = 0;
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}
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}
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QT_END_NAMESPACE
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