--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/declarative/qml/qdeclarativewatcher.cpp	Thu Jul 22 16:41:55 2010 +0100
@@ -0,0 +1,186 @@
+/****************************************************************************
+**
+** 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 "private/qdeclarativewatcher_p.h"
+
+#include "qdeclarativeexpression.h"
+#include "qdeclarativecontext.h"
+#include "qdeclarative.h"
+
+#include <qdeclarativedebugservice_p.h>
+
+#include <QtCore/qmetaobject.h>
+#include <QtCore/qdebug.h>
+
+QT_BEGIN_NAMESPACE
+
+
+class QDeclarativeWatchProxy : public QObject
+{
+    Q_OBJECT
+public:
+    QDeclarativeWatchProxy(int id,
+                  QObject *object,
+                  int debugId,
+                  const QMetaProperty &prop,
+                  QDeclarativeWatcher *parent = 0);
+
+    QDeclarativeWatchProxy(int id,
+                  QDeclarativeExpression *exp,
+                  int debugId,
+                  QDeclarativeWatcher *parent = 0);
+
+public slots:
+    void notifyValueChanged();
+
+private:
+    friend class QDeclarativeWatcher;
+    int m_id;
+    QDeclarativeWatcher *m_watch;
+    QObject *m_object;
+    int m_debugId;
+    QMetaProperty m_property;
+
+    QDeclarativeExpression *m_expr;
+};
+
+QDeclarativeWatchProxy::QDeclarativeWatchProxy(int id,
+                             QDeclarativeExpression *exp,
+                             int debugId,
+                             QDeclarativeWatcher *parent)
+: QObject(parent), m_id(id), m_watch(parent), m_object(0), m_debugId(debugId), m_expr(exp)
+{
+    QObject::connect(m_expr, SIGNAL(valueChanged()), this, SLOT(notifyValueChanged()));
+}
+
+QDeclarativeWatchProxy::QDeclarativeWatchProxy(int id,
+                             QObject *object,
+                             int debugId,
+                             const QMetaProperty &prop,
+                             QDeclarativeWatcher *parent)
+: QObject(parent), m_id(id), m_watch(parent), m_object(object), m_debugId(debugId), m_property(prop), m_expr(0)
+{
+    static int refreshIdx = -1;
+    if(refreshIdx == -1)
+        refreshIdx = QDeclarativeWatchProxy::staticMetaObject.indexOfMethod("notifyValueChanged()");
+
+    if (prop.hasNotifySignal())
+        QMetaObject::connect(m_object, prop.notifySignalIndex(), this, refreshIdx);
+}
+
+void QDeclarativeWatchProxy::notifyValueChanged()
+{
+    QVariant v;
+    if (m_expr)
+        v = m_expr->evaluate();
+    else
+        v = m_property.read(m_object);
+
+    emit m_watch->propertyChanged(m_id, m_debugId, m_property, v);
+}
+
+
+QDeclarativeWatcher::QDeclarativeWatcher(QObject *parent)
+    : QObject(parent)
+{
+}
+
+bool QDeclarativeWatcher::addWatch(int id, quint32 debugId)
+{
+    QObject *object = QDeclarativeDebugService::objectForId(debugId);
+    if (object) {
+        int propCount = object->metaObject()->propertyCount();
+        for (int ii=0; ii<propCount; ii++)
+            addPropertyWatch(id, object, debugId, object->metaObject()->property(ii));
+        return true;
+    }
+    return false;
+}
+
+bool QDeclarativeWatcher::addWatch(int id, quint32 debugId, const QByteArray &property)
+{
+    QObject *object = QDeclarativeDebugService::objectForId(debugId);
+    if (object) {
+        int index = object->metaObject()->indexOfProperty(property.constData());
+        if (index >= 0) {
+            addPropertyWatch(id, object, debugId, object->metaObject()->property(index));
+            return true;
+        }
+    }
+    return false;
+}
+
+bool QDeclarativeWatcher::addWatch(int id, quint32 objectId, const QString &expr)
+{
+    QObject *object = QDeclarativeDebugService::objectForId(objectId);
+    QDeclarativeContext *context = qmlContext(object);
+    if (context) {
+        QDeclarativeExpression *exprObj = new QDeclarativeExpression(context, object, expr);
+        exprObj->setNotifyOnValueChanged(true);
+        QDeclarativeWatchProxy *proxy = new QDeclarativeWatchProxy(id, exprObj, objectId, this);
+        exprObj->setParent(proxy);
+        m_proxies[id].append(proxy);
+        proxy->notifyValueChanged();
+        return true;
+    }
+    return false;
+}
+
+void QDeclarativeWatcher::removeWatch(int id)
+{
+    if (!m_proxies.contains(id))
+        return;
+
+    QList<QPointer<QDeclarativeWatchProxy> > proxies = m_proxies.take(id);
+    qDeleteAll(proxies);
+}
+
+void QDeclarativeWatcher::addPropertyWatch(int id, QObject *object, quint32 debugId, const QMetaProperty &property)
+{
+    QDeclarativeWatchProxy *proxy = new QDeclarativeWatchProxy(id, object, debugId, property, this);
+    m_proxies[id].append(proxy);
+
+    proxy->notifyValueChanged();
+}
+
+QT_END_NAMESPACE
+
+#include <qdeclarativewatcher.moc>