Palette: fix value type provider

The static value type provider instance must be moved from the plugin
(libqtquicktemplates2plugin.so) to the library (libQt5QuickTemplates2.so)
to keep it alive when qmlClearTypeRegistrations() is called and the
plugin is unloaded. This fixes the warning that was being thrown a lot
in tst_qquickmenubar on macOS:

    QWARN  : tst_qquickmenubar::Default::UnknownTestFunc() QQml_removeValueTypeProvider: was asked to remove provider 0x117dc97f8 but it was not found

Change-Id: I4448e497672c834786af0132b6ed5f03c3931773
Reviewed-by: Mitch Curtis <mitch.curtis@qt.io>

1 files changed, 72 insertions, 0 deletions

diff --git a/src/quicktemplates2/qquickpaletteprovider_p.h b/src/quicktemplates2/qquickpaletteprovider_p.h
new file mode 100644
index 00000000..5b6e3796
--- /dev/null
+++ b/src/quicktemplates2/qquickpaletteprovider_p.h
@@ -0,0 +1,72 @@
+/****************************************************************************
+**
+** Copyright (C) 2017 The Qt Company Ltd.
+** Contact: http://www.qt.io/licensing/
+**
+** This file is part of the Qt Quick Templates 2 module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL3$
+** 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 http://www.qt.io/terms-conditions. For further
+** information use the contact form at http://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.LGPLv3 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.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 later 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 2.0 requirements will be
+** met: http://www.gnu.org/licenses/gpl-2.0.html.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QQUICKPALETTEPROVIDER_P_H
+#define QQUICKPALETTEPROVIDER_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 <QtQuickTemplates2/private/qtquicktemplates2global_p.h>
+#include <QtQml/private/qqmlglobal_p.h>
+
+QT_BEGIN_NAMESPACE
+
+class Q_QUICKTEMPLATES2_PRIVATE_EXPORT QQuickPaletteProvider : public QQmlValueTypeProvider
+{
+public:
+    static void init();
+    static void cleanup();
+
+    const QMetaObject *getMetaObjectForMetaType(int type) override;
+    bool init(int type, QVariant& dst) override;
+    bool equal(int type, const void *lhs, const QVariant &rhs) override;
+    bool store(int type, const void *src, void *dst, size_t dstSize) override;
+    bool read(const QVariant &src, void *dst, int dstType) override;
+    bool write(int type, const void *src, QVariant& dst) override;
+};
+
+QT_END_NAMESPACE
+
+#endif // QQUICKTEMPLATES2VALUETYPEPROVIDER_P_H