QPlatformWindow: add startSystemMove()

It can be used by custom widgets or for example by
the Breeze style from KDE, which allows to drag windows
by some widgets.

It's important on X11 because _NET_WM_MOVERESIZE requests
induced by touch sequences require support from Qt.

Task-number: QTBUG-58044
Change-Id: I31c37534555a9050cf361cad85bdef13c2808572
Reviewed-by: Johan Helsing <johan.helsing@qt.io>
Reviewed-by: Shawn Rutledge <shawn.rutledge@qt.io>

1 files changed, 11 insertions, 11 deletions

diff --git a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
index ba6481082a..39d2857212 100644
--- a/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
+++ b/src/plugins/platforms/xcb/qxcbconnection_xi2.cpp
@@ -784,15 +784,15 @@ void QXcbConnection::xi2ProcessTouch(void *xiDevEvent, QXcbWindow *platformWindo
         }
 
         if (dev->qtTouchDevice->type() == QTouchDevice::TouchScreen &&
-            xiDeviceEvent->event == m_startSystemResizeInfo.window &&
-            xiDeviceEvent->sourceid == m_startSystemResizeInfo.deviceid &&
-            xiDeviceEvent->detail == m_startSystemResizeInfo.pointid) {
-            QXcbWindow *window = platformWindowFromId(m_startSystemResizeInfo.window);
+            xiDeviceEvent->event == m_startSystemMoveResizeInfo.window &&
+            xiDeviceEvent->sourceid == m_startSystemMoveResizeInfo.deviceid &&
+            xiDeviceEvent->detail == m_startSystemMoveResizeInfo.pointid) {
+            QXcbWindow *window = platformWindowFromId(m_startSystemMoveResizeInfo.window);
             if (window) {
                 XIAllowTouchEvents(static_cast<Display *>(m_xlib_display), xiDeviceEvent->deviceid,
                                    xiDeviceEvent->detail, xiDeviceEvent->event, XIRejectTouch);
-                window->doStartSystemResize(QPoint(x, y), m_startSystemResizeInfo.corner);
-                m_startSystemResizeInfo.window = XCB_NONE;
+                window->doStartSystemMoveResize(QPoint(x, y), m_startSystemMoveResizeInfo.corner);
+                m_startSystemMoveResizeInfo.window = XCB_NONE;
             }
         }
         break;
@@ -825,7 +825,7 @@ void QXcbConnection::xi2ProcessTouch(void *xiDevEvent, QXcbWindow *platformWindo
         touchPoint.state = Qt::TouchPointStationary;
 }
 
-bool QXcbConnection::startSystemResizeForTouchBegin(xcb_window_t window, const QPoint &point, Qt::Corner corner)
+bool QXcbConnection::startSystemMoveResizeForTouchBegin(xcb_window_t window, const QPoint &point, int corner)
 {
     QHash<int, TouchDeviceData>::const_iterator devIt = m_touchDevices.constBegin();
     for (; devIt != m_touchDevices.constEnd(); ++devIt) {
@@ -834,10 +834,10 @@ bool QXcbConnection::startSystemResizeForTouchBegin(xcb_window_t window, const Q
             QHash<int, QPointF>::const_iterator pointIt = deviceData.pointPressedPosition.constBegin();
             for (; pointIt != deviceData.pointPressedPosition.constEnd(); ++pointIt) {
                 if (pointIt.value().toPoint() == point) {
-                    m_startSystemResizeInfo.window = window;
-                    m_startSystemResizeInfo.deviceid = devIt.key();
-                    m_startSystemResizeInfo.pointid = pointIt.key();
-                    m_startSystemResizeInfo.corner = corner;
+                    m_startSystemMoveResizeInfo.window = window;
+                    m_startSystemMoveResizeInfo.deviceid = devIt.key();
+                    m_startSystemMoveResizeInfo.pointid = pointIt.key();
+                    m_startSystemMoveResizeInfo.corner = corner;
                     return true;
                 }
             }