XCB: Silence clipboard warning "SelectionRequest too old"

Use the predefined logging category for clipboard warnings
and change the offending  warning to qCDebug() so that it is silent
by default.

Pick-to: 6.2 5.15
Fixes: QTBUG-60257
Change-Id: Icf1bc84cd64207b94ef471f13090c43b45e20728
Reviewed-by: Liang Qi <liang.qi@qt.io>

1 files changed, 10 insertions, 9 deletions

diff --git a/src/plugins/platforms/xcb/qxcbclipboard.cpp b/src/plugins/platforms/xcb/qxcbclipboard.cpp
index 21bc710987..dcffa568c4 100644
--- a/src/plugins/platforms/xcb/qxcbclipboard.cpp
+++ b/src/plugins/platforms/xcb/qxcbclipboard.cpp
@@ -71,7 +71,7 @@ public:
             break;
 
         default:
-            qWarning("QXcbClipboardMime: Internal error: Unsupported clipboard mode");
+            qCWarning(lcQpaClipboard, "QXcbClipboardMime: Internal error: Unsupported clipboard mode");
             break;
         }
     }
@@ -265,7 +265,7 @@ QXcbClipboard::~QXcbClipboard()
             if (auto event = waitForClipboardEvent(m_owner, XCB_SELECTION_NOTIFY, true)) {
                 free(event);
             } else {
-                qWarning("QXcbClipboard: Unable to receive an event from the "
+                qCWarning(lcQpaClipboard, "QXcbClipboard: Unable to receive an event from the "
                          "clipboard manager in a reasonable time");
             }
         }
@@ -371,7 +371,7 @@ void QXcbClipboard::setMimeData(QMimeData *data, QClipboard::Mode mode)
     xcb_set_selection_owner(xcb_connection(), newOwner, modeAtom, connection()->time());
 
     if (getSelectionOwner(modeAtom) != newOwner) {
-        qWarning("QXcbClipboard::setMimeData: Cannot set X11 selection owner");
+        qCWarning(lcQpaClipboard, "QXcbClipboard::setMimeData: Cannot set X11 selection owner");
     }
 
     emitChanged(mode);
@@ -538,7 +538,7 @@ void QXcbClipboard::handleSelectionClearRequest(xcb_selection_clear_event_t *eve
 void QXcbClipboard::handleSelectionRequest(xcb_selection_request_event_t *req)
 {
     if (requestor() && req->requestor == requestor()) {
-        qWarning("QXcbClipboard: Selection request should be caught before");
+        qCWarning(lcQpaClipboard, "QXcbClipboard: Selection request should be caught before");
         return;
     }
 
@@ -553,7 +553,8 @@ void QXcbClipboard::handleSelectionRequest(xcb_selection_request_event_t *req)
     QMimeData *d;
     QClipboard::Mode mode = modeForAtom(req->selection);
     if (mode > QClipboard::Selection) {
-        qWarning() << "QXcbClipboard: Unknown selection" << connection()->atomName(req->selection);
+        qCWarning(lcQpaClipboard, "QXcbClipboard: Unknown selection %s",
+                  connection()->atomName(req->selection).constData());
         xcb_send_event(xcb_connection(), false, req->requestor, XCB_EVENT_MASK_NO_EVENT, (const char *)&event);
         return;
     }
@@ -561,14 +562,14 @@ void QXcbClipboard::handleSelectionRequest(xcb_selection_request_event_t *req)
     d = m_clientClipboard[mode];
 
     if (!d) {
-        qWarning("QXcbClipboard: Cannot transfer data, no data available");
+        qCWarning(lcQpaClipboard, "QXcbClipboard: Cannot transfer data, no data available");
         xcb_send_event(xcb_connection(), false, req->requestor, XCB_EVENT_MASK_NO_EVENT, (const char *)&event);
         return;
     }
 
     if (m_timestamp[mode] == XCB_CURRENT_TIME // we don't own the selection anymore
             || (req->time != XCB_CURRENT_TIME && req->time < m_timestamp[mode])) {
-        qWarning("QXcbClipboard: SelectionRequest too old");
+        qCDebug(lcQpaClipboard, "QXcbClipboard: SelectionRequest too old");
         xcb_send_event(xcb_connection(), false, req->requestor, XCB_EVENT_MASK_NO_EVENT, (const char *)&event);
         return;
     }
@@ -623,7 +624,7 @@ void QXcbClipboard::handleSelectionRequest(xcb_selection_request_event_t *req)
                                     property, XCB_ATOM_INTEGER, 32, 1, &m_timestamp[mode]);
                 ret = property;
             } else {
-                qWarning("QXcbClipboard: Invalid data timestamp");
+                qCWarning(lcQpaClipboard, "QXcbClipboard: Invalid data timestamp");
             }
         } else if (target == targetsAtom) {
             ret = sendTargetsSelection(d, req->requestor, property);
@@ -728,7 +729,7 @@ bool QXcbClipboard::clipboardReadProperty(xcb_window_t win, xcb_atom_t property,
             // recover -- this shouldn't normally happen, but it doesn't
             // hurt to be defensive
             if ((int)(buffer_offset + length) > buffer->size()) {
-                qWarning("QXcbClipboard: buffer overflow");
+                qCWarning(lcQpaClipboard, "QXcbClipboard: buffer overflow");
                 length = buffer->size() - buffer_offset;
 
                 // escape loop