Introduce QQuickPointerHandler: base class for nested event handlers

They will be Tech Preview in 5.8, so they shouldn't be available
unless you explicitly import them.

Task-number: QTBUG-54824
Change-Id: I290854a4e2b76e2cdfef5c216c7fdeb47fbcd390
Reviewed-by: Jan Arve Sæther <jan-arve.saether@theqtcompany.com>

4 files changed, 105 insertions, 0 deletions

diff --git a/src/imports/handlers/handlers.pro b/src/imports/handlers/handlers.pro
new file mode 100644
index 0000000000..0e32644773
--- /dev/null
+++ b/src/imports/handlers/handlers.pro
@@ -0,0 +1,11 @@
+CXX_MODULE = qml
+TARGET  = handlersplugin
+TARGETPATH = Qt/labs/handlers
+IMPORT_VERSION = 1.0
+
+SOURCES += \
+    plugin.cpp
+
+QT += quick-private qml-private
+
+load(qml_plugin)
diff --git a/src/imports/handlers/plugin.cpp b/src/imports/handlers/plugin.cpp
new file mode 100644
index 0000000000..21b9764611
--- /dev/null
+++ b/src/imports/handlers/plugin.cpp
@@ -0,0 +1,88 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the plugins 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include <QtQml/qqmlextensionplugin.h>
+
+#include <private/qquickhandlersmodule_p.h>
+
+static void initResources()
+{
+#ifdef QT_STATIC
+    Q_INIT_RESOURCE(qmake_Qt_labs_handlers_1);
+#endif
+}
+
+QT_BEGIN_NAMESPACE
+
+/*!
+    \qmlmodule Qt.labs.handlers 1.0
+    \title Qt Quick Pointer Handlers
+    \ingroup qmlmodules
+    \brief Provides QML types for handling pointer events.
+
+    This QML module contains types for handling pointer events, which are an abstraction
+    of mouse, touch and tablet events.
+
+    To use the types in this module, import the module with the following line:
+
+    \code
+    import Qt.labs.handlers 1.0
+    \endcode
+*/
+
+
+//![class decl]
+class QtQuickHandlersPlugin : public QQmlExtensionPlugin
+{
+    Q_OBJECT
+    Q_PLUGIN_METADATA(IID QQmlExtensionInterface_iid)
+public:
+    QtQuickHandlersPlugin(QObject *parent = 0) : QQmlExtensionPlugin(parent) { initResources(); }
+    void registerTypes(const char *uri) Q_DECL_OVERRIDE
+    {
+        Q_ASSERT(QLatin1String(uri) == QLatin1String("Qt.labs.handlers"));
+        Q_UNUSED(uri);
+        QQuickHandlersModule::defineModule();
+    }
+};
+//![class decl]
+
+QT_END_NAMESPACE
+
+#include "plugin.moc"
diff --git a/src/imports/handlers/qmldir b/src/imports/handlers/qmldir
new file mode 100644
index 0000000000..4896348c2e
--- /dev/null
+++ b/src/imports/handlers/qmldir
@@ -0,0 +1,5 @@
+module Qt.labs.handlers
+plugin handlersplugin
+classname QtQuickHandlersPlugin
+typeinfo plugins.qmltypes
+
diff --git a/src/imports/imports.pro b/src/imports/imports.pro
index 9e3cdf3f42..ade744ec19 100644
--- a/src/imports/imports.pro
+++ b/src/imports/imports.pro
@@ -11,6 +11,7 @@ SUBDIRS += \
 
 qtHaveModule(quick) {
     SUBDIRS += \
+        handlers \
         layouts \
         qtquick2 \
         window \