wasm: move qwasmwindowclientarea content to qwasmwindow

This allows us to keep all event handlers in one place.

Move event handler registration to registerEventHandlers(),
which is called from the QWasmWindow constructor.

Change-Id: I31f22d6eb876b92bb15d4a140e0569f0288a5915
Reviewed-by: Morten Johan Sørvig <[email protected]>

5 files changed, 209 insertions, 271 deletions

diff --git a/src/plugins/platforms/wasm/CMakeLists.txt b/src/plugins/platforms/wasm/CMakeLists.txt
index 2c9e3ec8675..4a669a84e31 100644
--- a/src/plugins/platforms/wasm/CMakeLists.txt
+++ b/src/plugins/platforms/wasm/CMakeLists.txt
@@ -30,7 +30,6 @@ qt_internal_add_plugin(QWasmIntegrationPlugin
         qwasmservices.cpp qwasmservices.h
         qwasmtheme.cpp qwasmtheme.h
         qwasmwindow.cpp qwasmwindow.h
-        qwasmwindowclientarea.cpp qwasmwindowclientarea.h
         qwasmwindowtreenode.cpp qwasmwindowtreenode.h
         qwasmwindownonclientarea.cpp qwasmwindownonclientarea.h
         qwasminputcontext.cpp qwasminputcontext.h
diff --git a/src/plugins/platforms/wasm/qwasmwindow.cpp b/src/plugins/platforms/wasm/qwasmwindow.cpp
index fa3309f252a..036de1514bd 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.cpp
+++ b/src/plugins/platforms/wasm/qwasmwindow.cpp
@@ -16,13 +16,13 @@
 #include "qwasmintegration.h"
 #include "qwasmkeytranslator.h"
 #include "qwasmwindow.h"
-#include "qwasmwindowclientarea.h"
 #include "qwasmscreen.h"
 #include "qwasmcompositor.h"
 #include "qwasmevent.h"
 #include "qwasmeventdispatcher.h"
 #include "qwasmaccessibility.h"
 #include "qwasmclipboard.h"
+#include "qwasmdrag.h"
 
 #include <iostream>
 #include <sstream>
@@ -65,8 +65,6 @@ QWasmWindow::QWasmWindow(QWindow *w, QWasmDeadKeySupport *deadKeySupport,
     m_nonClientArea = std::make_unique<NonClientArea>(this, m_decoratedWindow);
     m_nonClientArea->titleBar()->setTitle(window()->title());
 
-    m_clientArea = std::make_unique<ClientArea>(this, compositor->screen(), m_window);
-
     m_window.set("className", "qt-window");
     m_decoratedWindow.call<void>("appendChild", m_window);
 
@@ -100,12 +98,64 @@ QWasmWindow::QWasmWindow(QWindow *w, QWasmDeadKeySupport *deadKeySupport,
 
     m_flags = window()->flags();
 
+    registerEventHandlers();
+
+    setParent(parent());
+}
+
+void QWasmWindow::registerEventHandlers()
+{
+    m_pointerDownCallback = std::make_unique<qstdweb::EventCallback>(m_window, "pointerdown",
+        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerDown, event)); }
+    );
+    m_pointerMoveCallback = std::make_unique<qstdweb::EventCallback>(m_window, "pointermove",
+        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerMove, event)); }
+    );
+    m_pointerUpCallback = std::make_unique<qstdweb::EventCallback>(m_window, "pointerup",
+        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerUp, event)); }
+    );
+    m_pointerCancelCallback = std::make_unique<qstdweb::EventCallback>(m_window, "pointercancel",
+        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerCancel, event)); }
+    );
     m_pointerEnterCallback = std::make_unique<qstdweb::EventCallback>(m_window, "pointerenter",
-        [this](emscripten::val event) { this->handlePointerEvent(PointerEvent(EventType::PointerEnter, event)); }
+        [this](emscripten::val event) { this->handlePointerEnterLeaveEvent(PointerEvent(EventType::PointerEnter, event)); }
     );
     m_pointerLeaveCallback = std::make_unique<qstdweb::EventCallback>(m_window, "pointerleave",
-        [this](emscripten::val event) { this->handlePointerEvent(PointerEvent(EventType::PointerLeave, event)); }
+        [this](emscripten::val event) { this->handlePointerEnterLeaveEvent(PointerEvent(EventType::PointerLeave, event)); }
+    );
+
+    m_window.call<void>("setAttribute", emscripten::val("draggable"), emscripten::val("true"));
+    m_dragStartCallback = std::make_unique<qstdweb::EventCallback>(m_window, "dragstart",
+        [this](emscripten::val event) {
+            DragEvent dragEvent(EventType::DragStart, event, window());
+            QWasmDrag::instance()->onNativeDragStarted(&dragEvent);
+        }
+    );
+    m_dragOverCallback = std::make_unique<qstdweb::EventCallback>(m_window, "dragover",
+        [this](emscripten::val event) {
+            DragEvent dragEvent(EventType::DragOver, event, window());
+            QWasmDrag::instance()->onNativeDragOver(&dragEvent);
+        }
     );
+    m_dropCallback = std::make_unique<qstdweb::EventCallback>(m_window, "drop",
+        [this](emscripten::val event) {
+            DragEvent dragEvent(EventType::Drop, event, window());
+            QWasmDrag::instance()->onNativeDrop(&dragEvent);
+        }
+    );
+    m_dragEndCallback = std::make_unique<qstdweb::EventCallback>(m_window, "dragend",
+        [this](emscripten::val event) {
+            DragEvent dragEvent(EventType::DragEnd, event, window());
+            QWasmDrag::instance()->onNativeDragFinished(&dragEvent);
+        }
+    );
+    m_dragLeaveCallback = std::make_unique<qstdweb::EventCallback>(m_window, "dragleave",
+        [this](emscripten::val event) {
+            DragEvent dragEvent(EventType::DragLeave, event, window());
+            QWasmDrag::instance()->onNativeDragLeave(&dragEvent);
+        }
+    );
+
     m_wheelEventCallback = std::make_unique<qstdweb::EventCallback>( m_window, "wheel",
         [this](emscripten::val event) { this->handleWheelEvent(event); });
 
@@ -123,8 +173,6 @@ QWasmWindow::QWasmWindow(QWindow *w, QWasmDeadKeySupport *deadKeySupport,
         [this](emscripten::val event) { this->handleKeyEvent(KeyEvent(EventType::KeyDown, event, m_deadKeySupport)); });
     m_keyUpCallback =std::make_unique<qstdweb::EventCallback>(m_window, "keyup",
         [this](emscripten::val event) {this->handleKeyEvent(KeyEvent(EventType::KeyUp, event, m_deadKeySupport)); });
-
-    setParent(parent());
 }
 
 QWasmWindow::~QWasmWindow()
@@ -586,13 +634,13 @@ bool QWasmWindow::processKeyForInputContext(const KeyEvent &event)
     return result;
 }
 
-void QWasmWindow::handlePointerEvent(const PointerEvent &event)
+void QWasmWindow::handlePointerEnterLeaveEvent(const PointerEvent &event)
 {
-    if (processPointer(event))
+    if (processPointerEnterLeave(event))
         event.webEvent.call<void>("preventDefault");
 }
 
-bool QWasmWindow::processPointer(const PointerEvent &event)
+bool QWasmWindow::processPointerEnterLeave(const PointerEvent &event)
 {
     if (event.pointerType != PointerType::Mouse && event.pointerType != PointerType::Pen)
         return false;
@@ -615,6 +663,136 @@ bool QWasmWindow::processPointer(const PointerEvent &event)
     return false;
 }
 
+void QWasmWindow::processPointer(const PointerEvent &event)
+{
+    switch (event.type) {
+    case EventType::PointerDown:
+        m_window.call<void>("setPointerCapture", event.pointerId);
+        if ((window()->flags() & Qt::WindowDoesNotAcceptFocus)
+                    != Qt::WindowDoesNotAcceptFocus
+            && window()->isTopLevel())
+                window()->requestActivate();
+        break;
+    case EventType::PointerUp:
+        m_window.call<void>("releasePointerCapture", event.pointerId);
+        break;
+    default:
+        break;
+    };
+
+    const bool eventAccepted = deliverPointerEvent(event);
+    if (!eventAccepted && event.type == EventType::PointerDown)
+        QGuiApplicationPrivate::instance()->closeAllPopups();
+    event.webEvent.call<void>("preventDefault");
+    event.webEvent.call<void>("stopPropagation");
+}
+
+bool QWasmWindow::deliverPointerEvent(const PointerEvent &event)
+{
+    const auto pointInScreen = platformScreen()->mapFromLocal(
+        dom::mapPoint(event.target(), platformScreen()->element(), event.localPoint));
+
+    const auto geometryF = platformScreen()->geometry().toRectF();
+    const QPointF targetPointClippedToScreen(
+            qBound(geometryF.left(), pointInScreen.x(), geometryF.right()),
+            qBound(geometryF.top(), pointInScreen.y(), geometryF.bottom()));
+
+    if (event.pointerType == PointerType::Mouse) {
+        const QEvent::Type eventType =
+                MouseEvent::mouseEventTypeFromEventType(event.type, WindowArea::Client);
+
+        return eventType != QEvent::None
+                && QWindowSystemInterface::handleMouseEvent(
+                        window(), QWasmIntegration::getTimestamp(),
+                        window()->mapFromGlobal(targetPointClippedToScreen),
+                        targetPointClippedToScreen, event.mouseButtons, event.mouseButton,
+                        eventType, event.modifiers);
+    }
+
+    if (event.pointerType == PointerType::Pen) {
+        qreal pressure;
+        switch (event.type) {
+            case EventType::PointerDown :
+            case EventType::PointerMove :
+                pressure = event.pressure;
+                break;
+            case EventType::PointerUp :
+                pressure = 0.0;
+                break;
+            default:
+                return false;
+        }
+        // Tilt in the browser is in the range +-90, but QTabletEvent only goes to +-60.
+        qreal xTilt = qBound(-60.0, event.tiltX, 60.0);
+        qreal yTilt = qBound(-60.0, event.tiltY, 60.0);
+        // Barrel rotation is reported as 0 to 359, but QTabletEvent wants a signed value.
+        qreal rotation = event.twist > 180.0 ? 360.0 - event.twist : event.twist;
+        return QWindowSystemInterface::handleTabletEvent(
+            window(), QWasmIntegration::getTimestamp(), platformScreen()->tabletDevice(),
+            window()->mapFromGlobal(targetPointClippedToScreen),
+            targetPointClippedToScreen, event.mouseButtons, pressure, xTilt, yTilt,
+            event.tangentialPressure, rotation, event.modifiers);
+    }
+
+    QWindowSystemInterface::TouchPoint *touchPoint;
+
+    QPointF pointInTargetWindowCoords =
+            QPointF(window()->mapFromGlobal(targetPointClippedToScreen));
+    QPointF normalPosition(pointInTargetWindowCoords.x() / window()->width(),
+                           pointInTargetWindowCoords.y() / window()->height());
+
+    const auto tp = m_pointerIdToTouchPoints.find(event.pointerId);
+    if (event.pointerType != PointerType::Pen && tp != m_pointerIdToTouchPoints.end()) {
+        touchPoint = &tp.value();
+    } else {
+        touchPoint = &m_pointerIdToTouchPoints
+                              .insert(event.pointerId, QWindowSystemInterface::TouchPoint())
+                              .value();
+
+        // Assign touch point id. TouchPoint::id is int, but QGuiApplicationPrivate::processTouchEvent()
+        // will not synthesize mouse events for touch points with negative id; use the absolute value for
+        // the touch point id.
+        touchPoint->id = qAbs(event.pointerId);
+
+        touchPoint->state = QEventPoint::State::Pressed;
+    }
+
+    const bool stationaryTouchPoint = (normalPosition == touchPoint->normalPosition);
+    touchPoint->normalPosition = normalPosition;
+    touchPoint->area = QRectF(targetPointClippedToScreen, QSizeF(event.width, event.height))
+                                   .translated(-event.width / 2, -event.height / 2);
+    touchPoint->pressure = event.pressure;
+
+    switch (event.type) {
+    case EventType::PointerUp:
+        touchPoint->state = QEventPoint::State::Released;
+        break;
+    case EventType::PointerMove:
+        touchPoint->state = (stationaryTouchPoint ? QEventPoint::State::Stationary
+                                                  : QEventPoint::State::Updated);
+        break;
+    default:
+        break;
+    }
+
+    QList<QWindowSystemInterface::TouchPoint> touchPointList;
+    touchPointList.reserve(m_pointerIdToTouchPoints.size());
+    std::transform(m_pointerIdToTouchPoints.begin(), m_pointerIdToTouchPoints.end(),
+                   std::back_inserter(touchPointList),
+                   [](const QWindowSystemInterface::TouchPoint &val) { return val; });
+
+    if (event.type == EventType::PointerUp)
+        m_pointerIdToTouchPoints.remove(event.pointerId);
+
+    return event.type == EventType::PointerCancel
+            ? QWindowSystemInterface::handleTouchCancelEvent(
+                    window(), QWasmIntegration::getTimestamp(), platformScreen()->touchDevice(),
+                    event.modifiers)
+            : QWindowSystemInterface::handleTouchEvent(
+                    window(), QWasmIntegration::getTimestamp(), platformScreen()->touchDevice(),
+                    touchPointList, event.modifiers);
+}
+
 void QWasmWindow::handleWheelEvent(const emscripten::val &event)
 {
     if (processWheel(WheelEvent(EventType::Wheel, event)))
diff --git a/src/plugins/platforms/wasm/qwasmwindow.h b/src/plugins/platforms/wasm/qwasmwindow.h
index c503f9f69eb..f1789a6dab1 100644
--- a/src/plugins/platforms/wasm/qwasmwindow.h
+++ b/src/plugins/platforms/wasm/qwasmwindow.h
@@ -5,21 +5,21 @@
 #define QWASMWINDOW_H
 
 #include "qwasmintegration.h"
-#include <qpa/qplatformwindow.h>
-#include <qpa/qplatformwindow_p.h>
-#include <emscripten/html5.h>
 #include "qwasmbackingstore.h"
 #include "qwasmscreen.h"
 #include "qwasmcompositor.h"
 #include "qwasmwindownonclientarea.h"
 #include "qwasmwindowstack.h"
 #include "qwasmwindowtreenode.h"
+#include "qwasmevent.h"
 
 #include <QtCore/private/qstdweb_p.h>
-#include "QtGui/qopenglcontext.h"
-#include <QtOpenGL/qopengltextureblitter.h>
+#include <qpa/qwindowsysteminterface.h>
+#include <qpa/qplatformwindow.h>
+#include <qpa/qplatformwindow_p.h>
 
 #include <emscripten/val.h>
+#include <emscripten/html5.h>
 
 #include <memory>
 
@@ -29,7 +29,6 @@ namespace qstdweb {
 class EventCallback;
 }
 
-class ClientArea;
 struct KeyEvent;
 struct PointerEvent;
 class QWasmDeadKeySupport;
@@ -49,6 +48,8 @@ public:
     static QWasmWindow *fromWindow(QWindow *window);
     QSurfaceFormat format() const override;
 
+    void registerEventHandlers();
+
     void paint();
     void setZOrder(int order);
     void setWindowCursor(QByteArray cssCursorName);
@@ -126,8 +127,10 @@ private:
     bool processKey(const KeyEvent &event);
     void handleKeyForInputContextEvent(EventType eventType, const emscripten::val &event);
     bool processKeyForInputContext(const KeyEvent &event);
-    void handlePointerEvent(const PointerEvent &event);
-    bool processPointer(const PointerEvent &event);
+    void handlePointerEnterLeaveEvent(const PointerEvent &event);
+    bool processPointerEnterLeave(const PointerEvent &event);
+    void processPointer(const PointerEvent &event);
+    bool deliverPointerEvent(const PointerEvent &event);
     void handleWheelEvent(const emscripten::val &event);
     bool processWheel(const WheelEvent &event);
 
@@ -144,7 +147,6 @@ private:
     emscripten::val m_context2d = emscripten::val::undefined();
 
     std::unique_ptr<NonClientArea> m_nonClientArea;
-    std::unique_ptr<ClientArea> m_clientArea;
 
     QWasmWindowTreeNode *m_commitedParent = nullptr;
 
@@ -153,13 +155,23 @@ private:
     std::unique_ptr<qstdweb::EventCallback> m_keyDownCallbackForInputContext;
     std::unique_ptr<qstdweb::EventCallback> m_keyUpCallbackForInputContext;
 
+    std::unique_ptr<qstdweb::EventCallback> m_pointerDownCallback;
+    std::unique_ptr<qstdweb::EventCallback> m_pointerMoveCallback;
+    std::unique_ptr<qstdweb::EventCallback> m_pointerUpCallback;
+    std::unique_ptr<qstdweb::EventCallback> m_pointerCancelCallback;
     std::unique_ptr<qstdweb::EventCallback> m_pointerLeaveCallback;
     std::unique_ptr<qstdweb::EventCallback> m_pointerEnterCallback;
 
+    std::unique_ptr<qstdweb::EventCallback> m_dragOverCallback;
+    std::unique_ptr<qstdweb::EventCallback> m_dragStartCallback;
+    std::unique_ptr<qstdweb::EventCallback> m_dragEndCallback;
     std::unique_ptr<qstdweb::EventCallback> m_dropCallback;
+    std::unique_ptr<qstdweb::EventCallback> m_dragLeaveCallback;
 
     std::unique_ptr<qstdweb::EventCallback> m_wheelEventCallback;
 
+    QMap<int, QWindowSystemInterface::TouchPoint> m_pointerIdToTouchPoints;
+
     Qt::WindowStates m_state = Qt::WindowNoState;
     Qt::WindowStates m_previousWindowState = Qt::WindowNoState;
 
diff --git a/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp b/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp
deleted file mode 100644
index 4403740fa47..00000000000
--- a/src/plugins/platforms/wasm/qwasmwindowclientarea.cpp
+++ /dev/null
@@ -1,198 +0,0 @@
-// Copyright (C) 2022 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
-
-#include "qwasmwindowclientarea.h"
-
-#include "qwasmdom.h"
-#include "qwasmevent.h"
-#include "qwasmscreen.h"
-#include "qwasmwindow.h"
-#include "qwasmdrag.h"
-
-#include <QtGui/private/qguiapplication_p.h>
-#include <QtGui/qpointingdevice.h>
-
-#include <QtCore/qassert.h>
-
-QT_BEGIN_NAMESPACE
-
-ClientArea::ClientArea(QWasmWindow *window, QWasmScreen *screen, emscripten::val element)
-    : m_screen(screen), m_window(window), m_element(element)
-{
-    m_pointerDownCallback = std::make_unique<qstdweb::EventCallback>(element, "pointerdown",
-        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerDown, event)); }
-    );
-    m_pointerMoveCallback = std::make_unique<qstdweb::EventCallback>(element, "pointermove",
-        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerMove, event)); }
-    );
-    m_pointerUpCallback = std::make_unique<qstdweb::EventCallback>(element, "pointerup",
-        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerUp, event)); }
-    );
-    m_pointerCancelCallback = std::make_unique<qstdweb::EventCallback>(element, "pointercancel",
-        [this](emscripten::val event){ processPointer(PointerEvent(EventType::PointerCancel, event)); }
-    );
-
-    element.call<void>("setAttribute", emscripten::val("draggable"), emscripten::val("true"));
-    m_dragStartCallback = std::make_unique<qstdweb::EventCallback>(element, "dragstart",
-        [this](emscripten::val event) {
-            DragEvent dragEvent(EventType::DragStart, event, m_window->window());
-            QWasmDrag::instance()->onNativeDragStarted(&dragEvent);
-        }
-    );
-    m_dragOverCallback = std::make_unique<qstdweb::EventCallback>(element, "dragover",
-        [this](emscripten::val event) {
-            DragEvent dragEvent(EventType::DragOver, event, m_window->window());
-            QWasmDrag::instance()->onNativeDragOver(&dragEvent);
-        }
-    );
-    m_dropCallback = std::make_unique<qstdweb::EventCallback>(element, "drop",
-        [this](emscripten::val event) {
-            DragEvent dragEvent(EventType::Drop, event, m_window->window());
-            QWasmDrag::instance()->onNativeDrop(&dragEvent);
-        }
-    );
-    m_dragEndCallback = std::make_unique<qstdweb::EventCallback>(element, "dragend",
-        [this](emscripten::val event) {
-            DragEvent dragEvent(EventType::DragEnd, event, m_window->window());
-            QWasmDrag::instance()->onNativeDragFinished(&dragEvent);
-        }
-    );
-    m_dragLeaveCallback = std::make_unique<qstdweb::EventCallback>(element, "dragleave",
-        [this](emscripten::val event) {
-            DragEvent dragEvent(EventType::DragLeave, event, m_window->window());
-            QWasmDrag::instance()->onNativeDragLeave(&dragEvent);
-        }
-    );
-}
-
-void ClientArea::processPointer(const PointerEvent &event)
-{
-    switch (event.type) {
-    case EventType::PointerDown:
-        m_element.call<void>("setPointerCapture", event.pointerId);
-        if ((m_window->window()->flags() & Qt::WindowDoesNotAcceptFocus)
-                    != Qt::WindowDoesNotAcceptFocus
-            && m_window->window()->isTopLevel())
-                m_window->window()->requestActivate();
-        break;
-    case EventType::PointerUp:
-        m_element.call<void>("releasePointerCapture", event.pointerId);
-        break;
-    default:
-        break;
-    };
-
-    const bool eventAccepted = deliverEvent(event);
-    if (!eventAccepted && event.type == EventType::PointerDown)
-        QGuiApplicationPrivate::instance()->closeAllPopups();
-    event.webEvent.call<void>("preventDefault");
-    event.webEvent.call<void>("stopPropagation");
-}
-
-bool ClientArea::deliverEvent(const PointerEvent &event)
-{
-    const auto pointInScreen = m_screen->mapFromLocal(
-        dom::mapPoint(event.target(), m_screen->element(), event.localPoint));
-
-    const auto geometryF = m_screen->geometry().toRectF();
-    const QPointF targetPointClippedToScreen(
-            qBound(geometryF.left(), pointInScreen.x(), geometryF.right()),
-            qBound(geometryF.top(), pointInScreen.y(), geometryF.bottom()));
-
-    if (event.pointerType == PointerType::Mouse) {
-        const QEvent::Type eventType =
-                MouseEvent::mouseEventTypeFromEventType(event.type, WindowArea::Client);
-
-        return eventType != QEvent::None
-                && QWindowSystemInterface::handleMouseEvent(
-                        m_window->window(), QWasmIntegration::getTimestamp(),
-                        m_window->window()->mapFromGlobal(targetPointClippedToScreen),
-                        targetPointClippedToScreen, event.mouseButtons, event.mouseButton,
-                        eventType, event.modifiers);
-    }
-
-    if (event.pointerType == PointerType::Pen) {
-        qreal pressure;
-        switch (event.type) {
-            case EventType::PointerDown :
-            case EventType::PointerMove :
-                pressure = event.pressure;
-                break;
-            case EventType::PointerUp :
-                pressure = 0.0;
-                break;
-            default:
-                return false;
-        }
-        // Tilt in the browser is in the range +-90, but QTabletEvent only goes to +-60.
-        qreal xTilt = qBound(-60.0, event.tiltX, 60.0);
-        qreal yTilt = qBound(-60.0, event.tiltY, 60.0);
-        // Barrel rotation is reported as 0 to 359, but QTabletEvent wants a signed value.
-        qreal rotation = event.twist > 180.0 ? 360.0 - event.twist : event.twist;
-        return QWindowSystemInterface::handleTabletEvent(
-            m_window->window(), QWasmIntegration::getTimestamp(), m_screen->tabletDevice(),
-            m_window->window()->mapFromGlobal(targetPointClippedToScreen),
-            targetPointClippedToScreen, event.mouseButtons, pressure, xTilt, yTilt,
-            event.tangentialPressure, rotation, event.modifiers);
-    }
-
-    QWindowSystemInterface::TouchPoint *touchPoint;
-
-    QPointF pointInTargetWindowCoords =
-            QPointF(m_window->window()->mapFromGlobal(targetPointClippedToScreen));
-    QPointF normalPosition(pointInTargetWindowCoords.x() / m_window->window()->width(),
-                           pointInTargetWindowCoords.y() / m_window->window()->height());
-
-    const auto tp = m_pointerIdToTouchPoints.find(event.pointerId);
-    if (event.pointerType != PointerType::Pen && tp != m_pointerIdToTouchPoints.end()) {
-        touchPoint = &tp.value();
-    } else {
-        touchPoint = &m_pointerIdToTouchPoints
-                              .insert(event.pointerId, QWindowSystemInterface::TouchPoint())
-                              .value();
-
-        // Assign touch point id. TouchPoint::id is int, but QGuiApplicationPrivate::processTouchEvent()
-        // will not synthesize mouse events for touch points with negative id; use the absolute value for
-        // the touch point id.
-        touchPoint->id = qAbs(event.pointerId);
-
-        touchPoint->state = QEventPoint::State::Pressed;
-    }
-
-    const bool stationaryTouchPoint = (normalPosition == touchPoint->normalPosition);
-    touchPoint->normalPosition = normalPosition;
-    touchPoint->area = QRectF(targetPointClippedToScreen, QSizeF(event.width, event.height))
-                                   .translated(-event.width / 2, -event.height / 2);
-    touchPoint->pressure = event.pressure;
-
-    switch (event.type) {
-    case EventType::PointerUp:
-        touchPoint->state = QEventPoint::State::Released;
-        break;
-    case EventType::PointerMove:
-        touchPoint->state = (stationaryTouchPoint ? QEventPoint::State::Stationary
-                                                  : QEventPoint::State::Updated);
-        break;
-    default:
-        break;
-    }
-
-    QList<QWindowSystemInterface::TouchPoint> touchPointList;
-    touchPointList.reserve(m_pointerIdToTouchPoints.size());
-    std::transform(m_pointerIdToTouchPoints.begin(), m_pointerIdToTouchPoints.end(),
-                   std::back_inserter(touchPointList),
-                   [](const QWindowSystemInterface::TouchPoint &val) { return val; });
-
-    if (event.type == EventType::PointerUp)
-        m_pointerIdToTouchPoints.remove(event.pointerId);
-
-    return event.type == EventType::PointerCancel
-            ? QWindowSystemInterface::handleTouchCancelEvent(
-                    m_window->window(), QWasmIntegration::getTimestamp(), m_screen->touchDevice(),
-                    event.modifiers)
-            : QWindowSystemInterface::handleTouchEvent(
-                    m_window->window(), QWasmIntegration::getTimestamp(), m_screen->touchDevice(),
-                    touchPointList, event.modifiers);
-}
-
-QT_END_NAMESPACE
diff --git a/src/plugins/platforms/wasm/qwasmwindowclientarea.h b/src/plugins/platforms/wasm/qwasmwindowclientarea.h
deleted file mode 100644
index 22f8686c68a..00000000000
--- a/src/plugins/platforms/wasm/qwasmwindowclientarea.h
+++ /dev/null
@@ -1,53 +0,0 @@
-// Copyright (C) 2022 The Qt Company Ltd.
-// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only
-
-#ifndef QWASMWINDOWCLIENTAREA_H
-#define QWASMWINDOWCLIENTAREA_H
-
-#include <QtCore/qnamespace.h>
-#include <qpa/qwindowsysteminterface.h>
-#include <QtCore/QMap>
-
-#include <emscripten/val.h>
-
-#include <memory>
-
-QT_BEGIN_NAMESPACE
-
-namespace qstdweb {
-class EventCallback;
-}
-
-struct PointerEvent;
-class QWasmScreen;
-class QWasmWindow;
-
-class ClientArea
-{
-public:
-    ClientArea(QWasmWindow *window, QWasmScreen *screen, emscripten::val element);
-
-private:
-    void processPointer(const PointerEvent &event);
-    bool deliverEvent(const PointerEvent &event);
-
-    std::unique_ptr<qstdweb::EventCallback> m_pointerDownCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_pointerMoveCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_pointerUpCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_pointerCancelCallback;
-
-    std::unique_ptr<qstdweb::EventCallback> m_dragOverCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_dragStartCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_dragEndCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_dropCallback;
-    std::unique_ptr<qstdweb::EventCallback> m_dragLeaveCallback;
-
-    QMap<int, QWindowSystemInterface::TouchPoint> m_pointerIdToTouchPoints;
-
-    QWasmScreen *m_screen;
-    QWasmWindow *m_window;
-    emscripten::val m_element;
-};
-
-QT_END_NAMESPACE
-#endif // QWASMWINDOWNONCLIENTAREA_H