Use QObject declarative data to store attached properties.

An element's qmlAttachedProperties() function will now only ever get called once
per object.

1 files changed, 70 insertions, 0 deletions

diff --git a/src/declarative/qml/qmldeclarativedata_p.h b/src/declarative/qml/qmldeclarativedata_p.h
new file mode 100644
index 0000000..a934442
--- /dev/null
+++ b/src/declarative/qml/qmldeclarativedata_p.h
@@ -0,0 +1,70 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: Qt Software Information (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 either Technology Preview License Agreement or the
+** Beta Release License Agreement.
+**
+** 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 1.0, 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.
+**
+** If you are unsure which license is appropriate for your use, please
+** contact the sales department at qt-sales@nokia.com.
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QMLDECLARATIVEDATA_P_H
+#define QMLDECLARATIVEDATA_P_H
+
+#include <private/qobject_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class QmlSimpleDeclarativeData : public QDeclarativeData
+{
+public:
+    QmlSimpleDeclarativeData() : flags(0), context(0) {}
+
+    enum Flag { Extended = 0x00000001 };
+    quint32 flags;
+    QmlContext *context;
+};
+
+class QmlExtendedDeclarativeData : public QmlSimpleDeclarativeData
+{
+public:
+    QmlExtendedDeclarativeData() { flags = Extended; }
+
+    virtual void destroyed(QObject *);
+    QHash<int, QObject *> attachedProperties;
+};
+
+QT_END_NAMESPACE
+
+#endif // QMLDECLARATIVEDATA_P_H