https://mail.kde.org/pipermail/release-team/2025-June/013691.html
https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9226

From ae57ec2ebbbbac9de40dd36e2ed54b12fe7ed869 Mon Sep 17 00:00:00 2001
From: Aleix Pol <aleixpol@kde.org>
Date: Mon, 26 May 2025 23:51:16 +0200
Subject: [PATCH] qml6glitem,qtitem: Allow configuring if the item will consume
 input events

At the moment we are always accepting the input events to forward into
GStreamer infrastructure. This works but we might have other uses for
such events elsewhere in the QtQuick scene so allow opting out to this
behaviour.

Part-of: <https://gitlab.freedesktop.org/gstreamer/gstreamer/-/merge_requests/9226>
---
 ext/qt6/qt6glitem.cc     | 22 +++++++++++++++++--
 ext/qt6/qt6glitem.h      |  9 +++++++-
 2 files changed, 28 insertions(+), 3 deletions(-)

diff --git a/ext/qt6/qt6glitem.cc b/ext/qt6/qt6glitem.cc
index 971a027de969..d1d89c3fd7f3 100644
--- a/ext/qt6/qt6glitem.cc
+++ b/ext/qt6/qt6glitem.cc
@@ -193,6 +193,16 @@ Qt6GLVideoItem::setForceAspectRatio(bool force_aspect_ratio)
   emit forceAspectRatioChanged(force_aspect_ratio);
 }
 
+void
+Qt6GLVideoItem::setAcceptEvents(bool accept)
+{
+  if (accept == acceptEvents)
+    return;
+
+  acceptEvents = accept;
+  Q_EMIT acceptEventsChanged(acceptEvents);
+}
+
 bool
 Qt6GLVideoItem::getForceAspectRatio()
 {
@@ -487,18 +497,22 @@ Qt6GLVideoItem::wheelEvent(QWheelEvent * event)
     g_object_unref (element);
   }
   g_mutex_unlock (&this->priv->lock);
+
+  event->setAccepted(acceptEvents);
 }
 
 void
-Qt6GLVideoItem::hoverEnterEvent(QHoverEvent *)
+Qt6GLVideoItem::hoverEnterEvent(QHoverEvent *event)
 {
   mouseHovering = true;
+  event->setAccepted(acceptEvents);
 }
 
 void
-Qt6GLVideoItem::hoverLeaveEvent(QHoverEvent *)
+Qt6GLVideoItem::hoverLeaveEvent(QHoverEvent *event)
 {
   mouseHovering = false;
+  event->setAccepted(acceptEvents);
 }
 
 void
@@ -527,6 +541,7 @@ Qt6GLVideoItem::hoverMoveEvent(QHoverEvent * event)
     }
   }
   g_mutex_unlock (&this->priv->lock);
+  event->setAccepted(acceptEvents);
 }
 
 void
@@ -589,6 +604,7 @@ Qt6GLVideoItem::touchEvent(QTouchEvent * event)
 
   g_object_unref (element);
   g_mutex_unlock (&this->priv->lock);
+  event->setAccepted(acceptEvents);
 }
 
 void
@@ -641,12 +657,14 @@ Qt6GLVideoItem::mousePressEvent(QMouseEvent * event)
 {
   forceActiveFocus();
   sendMouseEvent(event, TRUE);
+  event->setAccepted(acceptEvents);
 }
 
 void
 Qt6GLVideoItem::mouseReleaseEvent(QMouseEvent * event)
 {
   sendMouseEvent(event, FALSE);
+  event->setAccepted(acceptEvents);
 }
 
 void
diff --git a/ext/qt6/qt6glitem.h b/ext/qt6/qt6glitem.h
index bfe28a1fc606..886a4a221f54 100644
--- a/ext/qt6/qt6glitem.h
+++ b/ext/qt6/qt6glitem.h
@@ -73,7 +73,10 @@ class Qt6GLVideoItem : public QQuickItem, protected QOpenGLFunctions
                READ getForceAspectRatio
                WRITE setForceAspectRatio
                NOTIFY forceAspectRatioChanged)
-
+    Q_PROPERTY(bool acceptEvents
+               READ getAcceptEvents
+               WRITE setAcceptEvents
+               NOTIFY acceptEventsChanged)
 public:
     Qt6GLVideoItem();
     ~Qt6GLVideoItem();
@@ -83,6 +86,8 @@ public:
     void setForceAspectRatio(bool);
     bool getForceAspectRatio();
     bool itemInitialized();
+    bool getAcceptEvents() const { return acceptEvents; }
+    void setAcceptEvents(bool accept);
 
     QSharedPointer<Qt6GLVideoItemInterface> getInterface() { return proxy; };
     /* private for C interface ... */
@@ -91,6 +96,7 @@ public:
 Q_SIGNALS:
     void itemInitializedChanged();
     void forceAspectRatioChanged(bool);
+    void acceptEventsChanged(bool acceptEvents);
 
 private Q_SLOTS:
     void handleWindowChanged(QQuickWindow * win);
@@ -120,6 +126,7 @@ private:
 
     quint32 mousePressedButton;
     bool mouseHovering;
+    bool acceptEvents = true;
 
     QSharedPointer<Qt6GLVideoItemInterface> proxy;
 };
-- 
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