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From 48ddfb592d1c84000936857a8a752fc2efec4c54 Mon Sep 17 00:00:00 2001
From: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
Date: Wed, 4 Jun 2025 20:25:49 +0000
Subject: [PATCH] wayland: Send wl_data_source.cancelled if
wl_data_device.start_drag is rejected
If a dnd operation is rejected by the start_drag request, currently, the
client has no any feedback about it.
This change makes kwin send a wl_data_source.cancelled similar to what
weston does. Note that with internal drags, no feedback will still be
provided though.
(cherry picked from commit d9249be845b788b1e22e9944468c26612d37730b)
Co-authored-by: Vlad Zahorodnii <vlad.zahorodnii@kde.org>
---
src/wayland/datadevice.cpp | 3 +++
1 file changed, 3 insertions(+)
diff --git a/src/wayland/datadevice.cpp b/src/wayland/datadevice.cpp
index 1becb8290df..eb514528752 100644
--- a/src/wayland/datadevice.cpp
+++ b/src/wayland/datadevice.cpp
@@ -96,6 +96,9 @@ void DataDeviceInterfacePrivate::data_device_start_drag(Resource *resource,
const bool touchGrab = seat->hasImplicitTouchGrab(serial) && seat->isSurfaceTouched(focusSurface);
if (!touchGrab) {
// Client neither has pointer nor touch grab. No drag start allowed.
+ if (dataSource) {
+ dataSource->dndCancelled();
+ }
return;
}
}
--
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