1 files changed, 136 insertions, 0 deletions
diff --git a/src/quickcontrolsimpl/qquickanimatednode.cpp b/src/quickcontrolsimpl/qquickanimatednode.cpp
new file mode 100644
index 0000000000..542955235b
--- /dev/null
+++ b/src/quickcontrolsimpl/qquickanimatednode.cpp
@@ -0,0 +1,136 @@
+// Copyright (C) 2017 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+#include "qquickanimatednode_p.h"
+
+#include <QtQuick/qquickitem.h>
+#include <QtQuick/qquickwindow.h>
+
+// based on qtdeclarative/examples/quick/scenegraph/threadedanimation
+
+QT_BEGIN_NAMESPACE
+
+QQuickAnimatedNode::QQuickAnimatedNode(QQuickItem *target)
+    : m_window(target->window())
+{
+}
+
+bool QQuickAnimatedNode::isRunning() const
+{
+    return m_running;
+}
+
+int QQuickAnimatedNode::currentTime() const
+{
+    int time = m_currentTime;
+    if (m_running)
+        time += m_timer.elapsed();
+    return time;
+}
+
+void QQuickAnimatedNode::setCurrentTime(int time)
+{
+    m_currentTime = time;
+    m_timer.restart();
+}
+
+int QQuickAnimatedNode::duration() const
+{
+    return m_duration;
+}
+
+void QQuickAnimatedNode::setDuration(int duration)
+{
+    m_duration = duration;
+}
+
+int QQuickAnimatedNode::loopCount() const
+{
+    return m_loopCount;
+}
+
+void QQuickAnimatedNode::setLoopCount(int count)
+{
+    m_loopCount = count;
+}
+
+void QQuickAnimatedNode::sync(QQuickItem *target)
+{
+    Q_UNUSED(target);
+}
+
+QQuickWindow *QQuickAnimatedNode::window() const
+{
+    return m_window;
+}
+
+void QQuickAnimatedNode::start(int duration)
+{
+    if (m_running)
+        return;
+
+    m_running = true;
+    m_currentLoop = 0;
+    m_timer.restart();
+    if (duration > 0)
+        m_duration = duration;
+
+    connect(m_window, &QQuickWindow::beforeRendering, this, &QQuickAnimatedNode::advance, Qt::DirectConnection);
+    connect(m_window, &QQuickWindow::frameSwapped, this, &QQuickAnimatedNode::update, Qt::DirectConnection);
+
+    // If we're inside a QQuickWidget, this call is necessary to ensure the widget
+    // gets updated for the first time.
+    m_window->update();
+
+    emit started();
+}
+
+void QQuickAnimatedNode::restart()
+{
+    stop();
+    start();
+}
+
+void QQuickAnimatedNode::stop()
+{
+    if (!m_running)
+        return;
+
+    m_running = false;
+    disconnect(m_window, &QQuickWindow::beforeRendering, this, &QQuickAnimatedNode::advance);
+    disconnect(m_window, &QQuickWindow::frameSwapped, this, &QQuickAnimatedNode::update);
+    emit stopped();
+}
+
+void QQuickAnimatedNode::updateCurrentTime(int time)
+{
+    Q_UNUSED(time);
+}
+
+void QQuickAnimatedNode::advance()
+{
+    int time = currentTime();
+    if (time > m_duration) {
+        time = 0;
+        setCurrentTime(0);
+
+        if (m_loopCount > 0 && ++m_currentLoop >= m_loopCount) {
+            time = m_duration; // complete
+            stop();
+        }
+    }
+    updateCurrentTime(time);
+
+    // If we're inside a QQuickWidget, this call is necessary to ensure the widget gets updated.
+    m_window->update();
+}
+
+void QQuickAnimatedNode::update()
+{
+    if (m_running)
+        m_window->update();
+}
+
+QT_END_NAMESPACE
+
+#include "moc_qquickanimatednode_p.cpp"