wasm: fix Pen input

This also adds the ability to distinguish between a Pen and a Touch.

Fixes: QTBUG-116989
Change-Id: Iffc5d20c9b46c1746a03c45dd12017d5dd5172a5
Reviewed-by: Morten Johan Sørvig <morten.sorvig@qt.io>
(cherry picked from commit 0367aace14b61e72433fa7cb7aab18b3def0030c)
Reviewed-by: Qt Cherry-pick Bot <cherrypick_bot@qt-project.org>
(cherry picked from commit 82a32ac7ab78d449531f3d5681c1dc943e681d00)

src/plugins/platforms/wasm/qwasmevent.cpp

@@ -177,6 +177,8 @@ PointerEvent::PointerEvent(EventType type, emscripten::val event) : MouseEvent(t
             return PointerType::Mouse;
         if (type == "touch")
             return PointerType::Touch;
+        if (type == "pen")
+            return PointerType::Pen;
         return PointerType::Other;
     })();
     width = event["width"].as<qreal>();

src/plugins/platforms/wasm/qwasmevent.h

@@ -35,6 +35,7 @@ enum class EventType {
 enum class PointerType {
     Mouse,
     Touch,
+    Pen,
     Other,
 };
 

src/plugins/platforms/wasm/qwasmwindowclientarea.cpp

@@ -99,7 +99,7 @@ bool ClientArea::deliverEvent(const PointerEvent &event)
                            pointInTargetWindowCoords.y() / m_window->window()->height());
 
     const auto tp = m_pointerIdToTouchPoints.find(event.pointerId);
-    if (tp != m_pointerIdToTouchPoints.end()) {
+    if (event.pointerType != PointerType::Pen && tp != m_pointerIdToTouchPoints.end()) {
         touchPoint = &tp.value();
     } else {
         touchPoint = &m_pointerIdToTouchPoints