Unify binding optimizer and QtScript binding signal management logic

1 files changed, 109 insertions, 0 deletions

diff --git a/src/declarative/qml/qdeclarativenotifier.cpp b/src/declarative/qml/qdeclarativenotifier.cpp
new file mode 100644
index 0000000..0a8783a
--- /dev/null
+++ b/src/declarative/qml/qdeclarativenotifier.cpp
@@ -0,0 +1,109 @@
+/****************************************************************************
+**
+** Copyright (C) 2010 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.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, 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.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "qdeclarativenotifier_p.h"
+
+QT_BEGIN_NAMESPACE
+
+void QDeclarativeNotifier::emitNotify(QDeclarativeNotifierEndpoint *endpoint)
+{
+    QDeclarativeNotifierEndpoint::Notifier *n = endpoint->asNotifier();
+
+    QDeclarativeNotifierEndpoint::Notifier **oldDisconnected = n->disconnected;
+    n->disconnected = &n;
+
+    if (n->next)
+        emitNotify(n->next);
+
+    if (n) {
+        void *args[] = { 0 };
+
+        QMetaObject::metacall(endpoint->target, QMetaObject::InvokeMetaMethod, 
+                              endpoint->targetMethod, args);
+
+        n->disconnected = oldDisconnected;
+    } 
+
+    if (oldDisconnected) *oldDisconnected = n;
+}
+
+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_n;
+
+        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
+