Move model types into their own library

The model types are not part of the core QML runtime and should only be
loaded if you explicitly import them. We cannot enforce that in Qt5 as
some of them are available from the QtQml import, but we can change it
in Qt6.

Change-Id: I1e49e84d748e352537ec2d4af901c034c91d038f
Reviewed-by: Erik Verbruggen <erik.verbruggen@me.com>

1 files changed, 181 insertions, 0 deletions

diff --git a/src/qmlmodels/qqmladaptormodel_p.h b/src/qmlmodels/qqmladaptormodel_p.h
new file mode 100644
index 0000000000..a4549127af
--- /dev/null
+++ b/src/qmlmodels/qqmladaptormodel_p.h
@@ -0,0 +1,181 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtQml module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 3 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL3 included in the
+** packaging of this file. Please review the following information to
+** ensure the GNU Lesser General Public License version 3 requirements
+** will be met: https://www.gnu.org/licenses/lgpl-3.0.html.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 2.0 or (at your option) the GNU General
+** Public license version 3 or any later version approved by the KDE Free
+** Qt Foundation. The licenses are as published by the Free Software
+** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-2.0.html and
+** https://www.gnu.org/licenses/gpl-3.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQMLADAPTORMODEL_P_H
+#define QQMLADAPTORMODEL_P_H
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#include <QtCore/qabstractitemmodel.h>
+
+#include <private/qqmlglobal_p.h>
+#include <private/qqmllistaccessor_p.h>
+#include <private/qtqmlmodelsglobal_p.h>
+#include <private/qqmlguard_p.h>
+#include <private/qqmlnullablevalue_p.h>
+#include <private/qqmlpropertycache_p.h>
+
+QT_REQUIRE_CONFIG(qml_delegate_model);
+
+QT_BEGIN_NAMESPACE
+
+class QQmlEngine;
+
+class QQmlDelegateModel;
+class QQmlDelegateModelItem;
+class QQmlDelegateModelItemMetaType;
+
+class Q_QMLMODELS_PRIVATE_EXPORT QQmlAdaptorModel : public QQmlStrongJSQObjectReference<QObject>
+{
+public:
+    class Accessors
+    {
+    public:
+        inline Accessors() {}
+        virtual ~Accessors();
+        virtual int rowCount(const QQmlAdaptorModel &) const { return 0; }
+        virtual int columnCount(const QQmlAdaptorModel &) const { return 0; }
+        virtual void cleanup(QQmlAdaptorModel &) const {}
+
+        virtual QVariant value(const QQmlAdaptorModel &, int, const QString &) const {
+            return QVariant(); }
+
+        virtual QQmlDelegateModelItem *createItem(
+                QQmlAdaptorModel &,
+                QQmlDelegateModelItemMetaType *,
+                int, int, int) const { return nullptr; }
+
+        virtual bool notify(
+                const QQmlAdaptorModel &,
+                const QList<QQmlDelegateModelItem *> &,
+                int,
+                int,
+                const QVector<int> &) const { return false; }
+        virtual void replaceWatchedRoles(
+                QQmlAdaptorModel &,
+                const QList<QByteArray> &,
+                const QList<QByteArray> &) const {}
+        virtual QVariant parentModelIndex(const QQmlAdaptorModel &) const {
+            return QVariant(); }
+        virtual QVariant modelIndex(const QQmlAdaptorModel &, int) const {
+            return QVariant(); }
+        virtual bool canFetchMore(const QQmlAdaptorModel &) const { return false; }
+        virtual void fetchMore(QQmlAdaptorModel &) const {}
+
+        QScopedPointer<QMetaObject, QScopedPointerPodDeleter> metaObject;
+        QQmlRefPointer<QQmlPropertyCache> propertyCache;
+    };
+
+    const Accessors *accessors;
+    QPersistentModelIndex rootIndex;
+    QQmlListAccessor list;
+
+    int modelItemRevision = 0;
+
+    QQmlAdaptorModel();
+    ~QQmlAdaptorModel();
+
+    inline QVariant model() const { return list.list(); }
+    void setModel(const QVariant &variant, QObject *parent, QQmlEngine *engine);
+    void invalidateModel();
+
+    bool isValid() const;
+    int count() const;
+    int rowCount() const;
+    int columnCount() const;
+    int rowAt(int index) const;
+    int columnAt(int index) const;
+    int indexAt(int row, int column) const;
+
+    void useImportVersion(int minorVersion);
+
+    inline bool adaptsAim() const { return qobject_cast<QAbstractItemModel *>(object()); }
+    inline QAbstractItemModel *aim() { return static_cast<QAbstractItemModel *>(object()); }
+    inline const QAbstractItemModel *aim() const { return static_cast<const QAbstractItemModel *>(object()); }
+
+    inline QVariant value(int index, const QString &role) const {
+        return accessors->value(*this, index, role); }
+    inline QQmlDelegateModelItem *createItem(QQmlDelegateModelItemMetaType *metaType, int index) {
+        return accessors->createItem(*this, metaType, index, rowAt(index), columnAt(index)); }
+    inline bool hasProxyObject() const {
+        return list.type() == QQmlListAccessor::Instance || list.type() == QQmlListAccessor::ListProperty; }
+
+    inline bool notify(
+            const QList<QQmlDelegateModelItem *> &items,
+            int index,
+            int count,
+            const QVector<int> &roles) const {
+        return accessors->notify(*this, items, index, count, roles); }
+    inline void replaceWatchedRoles(
+            const QList<QByteArray> &oldRoles, const QList<QByteArray> &newRoles) {
+        accessors->replaceWatchedRoles(*this, oldRoles, newRoles); }
+
+    inline QVariant modelIndex(int index) const { return accessors->modelIndex(*this, index); }
+    inline QVariant parentModelIndex() const { return accessors->parentModelIndex(*this); }
+    inline bool canFetchMore() const { return accessors->canFetchMore(*this); }
+    inline void fetchMore() { return accessors->fetchMore(*this); }
+
+protected:
+    void objectDestroyed(QObject *) override;
+};
+
+class QQmlAdaptorModelProxyInterface
+{
+public:
+    virtual ~QQmlAdaptorModelProxyInterface() {}
+
+    virtual QObject *proxiedObject() = 0;
+};
+
+#define QQmlAdaptorModelProxyInterface_iid "org.qt-project.Qt.QQmlAdaptorModelProxyInterface"
+
+Q_DECLARE_INTERFACE(QQmlAdaptorModelProxyInterface, QQmlAdaptorModelProxyInterface_iid)
+
+QT_END_NAMESPACE
+
+#endif