3 files changed, 10 insertions, 11 deletions
diff --git a/src/quick/handlers/qquickdraghandler.cpp b/src/quick/handlers/qquickdraghandler.cpp
index 48f0599284..e5531369cf 100644
--- a/src/quick/handlers/qquickdraghandler.cpp
+++ b/src/quick/handlers/qquickdraghandler.cpp
@@ -112,14 +112,13 @@ QPointF QQuickDragHandler::targetCentroidPosition()
 void QQuickDragHandler::onGrabChanged(QQuickPointerHandler *grabber, QQuickEventPoint::GrabTransition transition, QQuickEventPoint *point)
 {
     QQuickMultiPointHandler::onGrabChanged(grabber, transition, point);
-    if (grabber == this && transition == QQuickEventPoint::GrabExclusive) {
+    if (grabber == this && transition == QQuickEventPoint::GrabExclusive && target()) {
         // In case the grab got handed over from another grabber, we might not get the Press.
         if (!m_pressedInsideTarget) {
-            if (target())
+            if (target() != parentItem())
                 m_pressTargetPos = QPointF(target()->width(), target()->height()) / 2;
         } else if (m_pressTargetPos.isNull()) {
-            if (target())
-                m_pressTargetPos = targetCentroidPosition();
+            m_pressTargetPos = targetCentroidPosition();
         }
     }
 }
diff --git a/src/quick/items/qquickwindow.cpp b/src/quick/items/qquickwindow.cpp
index d448d74b99..88d419e2b3 100644
--- a/src/quick/items/qquickwindow.cpp
+++ b/src/quick/items/qquickwindow.cpp
@@ -2025,8 +2025,8 @@ bool QQuickWindowPrivate::deliverTouchCancelEvent(QTouchEvent *event)
     qCDebug(DBG_TOUCH) << event;
     Q_Q(QQuickWindow);
 
-    if (q->mouseGrabberItem())
-        q->mouseGrabberItem()->ungrabMouse();
+    if (QQuickItem *grabber = q->mouseGrabberItem())
+        sendUngrabEvent(grabber, true);
     cancelTouchMouseSynthesis();
 
     // A TouchCancel event will typically not contain any points.
diff --git a/src/quick/scenegraph/qsgdefaultcontext.cpp b/src/quick/scenegraph/qsgdefaultcontext.cpp
index af0589e5d3..70b74b8877 100644
--- a/src/quick/scenegraph/qsgdefaultcontext.cpp
+++ b/src/quick/scenegraph/qsgdefaultcontext.cpp
@@ -62,6 +62,8 @@
 
 #include <private/qqmlglobal_p.h>
 
+#include <algorithm>
+
 QT_BEGIN_NAMESPACE
 
 namespace QSGMultisampleAntialiasing {
@@ -158,11 +160,9 @@ void QSGDefaultContext::renderContextInitialized(QSGRenderContext *renderContext
         qCDebug(QSG_LOG_INFO, "GL_RENDERER:       %s",
                 (const char*)funcs->glGetString(GL_RENDERER));
         qCDebug(QSG_LOG_INFO, "GL_VERSION:        %s", (const char*)funcs->glGetString(GL_VERSION));
-        QSet<QByteArray> exts = openglRenderContext->openglContext()->extensions();
-        QByteArray all;
-        for (const QByteArray &e : qAsConst(exts))
-            all += ' ' + e;
-        qCDebug(QSG_LOG_INFO, "GL_EXTENSIONS:    %s", all.constData());
+        QByteArrayList exts = openglRenderContext->openglContext()->extensions().toList();
+        std::sort(exts.begin(), exts.end());
+        qCDebug(QSG_LOG_INFO, "GL_EXTENSIONS:    %s", exts.join(' ').constData());
         qCDebug(QSG_LOG_INFO, "Max Texture Size: %d", openglRenderContext->maxTextureSize());
         qCDebug(QSG_LOG_INFO, "Debug context:    %s",
                 format.testOption(QSurfaceFormat::DebugContext) ? "true" : "false");