Fix QObject::receivers() within connectNotify()

The receiver count needs to be correct in connectNotify() to be
compatible with ordinary connections.
Fix this and add test.

This is a backport of qtdeclarative commit
b1c6e095404ccb7788e6b12fff692c71f4900815

Change-Id: Ic3145a536c928eccfcc29b4d010a526135b654b0
Reviewed-by: Alan Alpert <416365416c@gmail.com>

2 files changed, 7 insertions, 1 deletions

diff --git a/src/declarative/qml/qdeclarativeboundsignal.cpp b/src/declarative/qml/qdeclarativeboundsignal.cpp
index 9bccb42..720c725 100644
--- a/src/declarative/qml/qdeclarativeboundsignal.cpp
+++ b/src/declarative/qml/qdeclarativeboundsignal.cpp
@@ -136,6 +136,7 @@ QDeclarativeBoundSignal::~QDeclarativeBoundSignal()
 
 void QDeclarativeBoundSignal::disconnect()
 {
+    QMetaObject::disconnect(m_scope, m_signal.methodIndex(), this, evaluateIdx);
     QObjectPrivate * const priv = QObjectPrivate::get(m_scope);
     QVarLengthArray<char> signalSignature;
     QObjectPrivate::signalSignature(m_signal, &signalSignature);
diff --git a/src/declarative/qml/qdeclarativeproperty.cpp b/src/declarative/qml/qdeclarativeproperty.cpp
index ce4122a..6ad94c2 100644
--- a/src/declarative/qml/qdeclarativeproperty.cpp
+++ b/src/declarative/qml/qdeclarativeproperty.cpp
@@ -1632,13 +1632,18 @@ bool QDeclarativePropertyPrivate::connect(QObject *sender, int signal_index,
     flush_vme_signal(sender, signal_index);
     flush_vme_signal(receiver, method_index);
 
+    const bool result =
+            QMetaObject::connect(sender, signal_index, receiver, method_index, type, types);
+
+    // connectNotify() needs to be called after the actual connect, as otherwise QObject::receivers()
+    // would return the wrong result inside connectNotify().
     const QMetaMethod signal = sender->metaObject()->method(signal_index);
     QObjectPrivate * const senderPriv = QObjectPrivate::get(sender);
     QVarLengthArray<char> signalSignature;
     QObjectPrivate::signalSignature(signal, &signalSignature);
     senderPriv->connectNotify(signalSignature.constData());
 
-    return QMetaObject::connect(sender, signal_index, receiver, method_index, type, types);
+    return result;
 }
 
 /*!