Use offsetX/offsetY for pointer events

qtwasmcompositor expects coordinates relative to the canvas. Provide
that by using pointer events' offsetX/offsetY instead of the viewport
x/y.

Fixes: QTBUG-108128
Fixes: QTBUG-106031
Pick-to: 6.4 6.4.1
Change-Id: I76c553b7b7e350fd873b18c775848217a4905f3d
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/plugins/platforms/wasm/qwasmevent.cpp b/src/plugins/platforms/wasm/qwasmevent.cpp
index b094dbfe14..f066d0041e 100644
--- a/src/plugins/platforms/wasm/qwasmevent.cpp
+++ b/src/plugins/platforms/wasm/qwasmevent.cpp
@@ -43,7 +43,7 @@ std::optional<PointerEvent> PointerEvent::fromWeb(emscripten::val event)
         PointerType::Mouse : PointerType::Other;
     ret.mouseButton = MouseEvent::buttonFromWeb(event["button"].as<int>());
     ret.mouseButtons = MouseEvent::buttonsFromWeb(event["buttons"].as<unsigned short>());
-    ret.point = QPoint(event["x"].as<int>(), event["y"].as<int>());
+    ret.point = QPoint(event["offsetX"].as<int>(), event["offsetY"].as<int>());
     ret.pointerId = event["pointerId"].as<int>();
     ret.modifiers = KeyboardModifier::getForEvent(event);