diff options
Diffstat (limited to 'src/plugins/platforms/windows/qwindowspointerhandler.cpp')
| -rw-r--r-- | src/plugins/platforms/windows/qwindowspointerhandler.cpp | 592 |
1 files changed, 592 insertions, 0 deletions
diff --git a/src/plugins/platforms/windows/qwindowspointerhandler.cpp b/src/plugins/platforms/windows/qwindowspointerhandler.cpp new file mode 100644 index 0000000000..d8918d1b3d --- /dev/null +++ b/src/plugins/platforms/windows/qwindowspointerhandler.cpp @@ -0,0 +1,592 @@ +/**************************************************************************** +** +** Copyright (C) 2018 The Qt Company Ltd. +** Contact: https://www.qt.io/licensing/ +** +** This file is part of the plugins of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** Commercial License Usage +** Licensees holding valid commercial Qt licenses may use this file in +** accordance with the commercial license agreement provided with the +** Software or, alternatively, in accordance with the terms contained in +** a written agreement between you and The Qt Company. For licensing terms +** and conditions see https://www.qt.io/terms-conditions. For further +** information use the contact form at https://www.qt.io/contact-us. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 3 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL3 included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 3 requirements +** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. +** +** GNU General Public License Usage +** Alternatively, this file may be used under the terms of the GNU +** General Public License version 2.0 or (at your option) the GNU General +** Public license version 3 or any later version approved by the KDE Free +** Qt Foundation. The licenses are as published by the Free Software +** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 +** included in the packaging of this file. Please review the following +** information to ensure the GNU General Public License requirements will +** be met: https://www.gnu.org/licenses/gpl-2.0.html and +** https://www.gnu.org/licenses/gpl-3.0.html. +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#if defined(WINVER) && WINVER < 0x0603 +# undef WINVER +#endif +#if !defined(WINVER) +# define WINVER 0x0603 // Enable pointer functions for MinGW +#endif + +#include "qwindowspointerhandler.h" +#include "qwindowskeymapper.h" +#include "qwindowscontext.h" +#include "qwindowswindow.h" +#include "qwindowsintegration.h" +#include "qwindowsscreen.h" + +#include <qpa/qwindowsysteminterface.h> +#include <QtGui/qguiapplication.h> +#include <QtGui/qscreen.h> +#include <QtGui/qtouchdevice.h> +#include <QtGui/qwindow.h> +#include <QtGui/private/qguiapplication_p.h> +#include <QtCore/qvarlengtharray.h> +#include <QtCore/qloggingcategory.h> +#include <QtCore/qoperatingsystemversion.h> + +#include <windowsx.h> + +QT_BEGIN_NAMESPACE + +enum { + QT_PT_POINTER = 1, + QT_PT_TOUCH = 2, + QT_PT_PEN = 3, + QT_PT_MOUSE = 4, + QT_PT_TOUCHPAD = 5, // MinGW is missing PT_TOUCHPAD +}; + +bool QWindowsPointerHandler::translatePointerEvent(QWindow *window, HWND hwnd, QtWindows::WindowsEventType et, MSG msg, LRESULT *result) +{ + *result = 0; + const quint32 pointerId = GET_POINTERID_WPARAM(msg.wParam); + + POINTER_INPUT_TYPE pointerType; + if (!QWindowsContext::user32dll.getPointerType(pointerId, &pointerType)) { + qWarning() << "GetPointerType() failed:" << qt_error_string(); + return false; + } + + switch (pointerType) { + case QT_PT_POINTER: + case QT_PT_MOUSE: + case QT_PT_TOUCHPAD: { + POINTER_INFO pointerInfo; + if (!QWindowsContext::user32dll.getPointerInfo(pointerId, &pointerInfo)) { + qWarning() << "GetPointerInfo() failed:" << qt_error_string(); + return false; + } + return translateMouseTouchPadEvent(window, hwnd, et, msg, &pointerInfo); + } + case QT_PT_TOUCH: { + quint32 pointerCount = 0; + if (!QWindowsContext::user32dll.getPointerFrameTouchInfo(pointerId, &pointerCount, nullptr)) { + qWarning() << "GetPointerFrameTouchInfo() failed:" << qt_error_string(); + return false; + } + QVarLengthArray<POINTER_TOUCH_INFO, 10> touchInfo(pointerCount); + if (!QWindowsContext::user32dll.getPointerFrameTouchInfo(pointerId, &pointerCount, touchInfo.data())) { + qWarning() << "GetPointerFrameTouchInfo() failed:" << qt_error_string(); + return false; + } + return translateTouchEvent(window, hwnd, et, msg, touchInfo.data(), pointerCount); + } + case QT_PT_PEN: { + POINTER_PEN_INFO penInfo; + if (!QWindowsContext::user32dll.getPointerPenInfo(pointerId, &penInfo)) { + qWarning() << "GetPointerPenInfo() failed:" << qt_error_string(); + return false; + } + return translatePenEvent(window, hwnd, et, msg, &penInfo); + } + } + return false; +} + +static void getMouseEventInfo(UINT message, POINTER_BUTTON_CHANGE_TYPE changeType, QPoint globalPos, QEvent::Type *eventType, Qt::MouseButton *mouseButton) +{ + static const QHash<POINTER_BUTTON_CHANGE_TYPE, Qt::MouseButton> buttonMapping { + {POINTER_CHANGE_FIRSTBUTTON_DOWN, Qt::LeftButton}, + {POINTER_CHANGE_FIRSTBUTTON_UP, Qt::LeftButton}, + {POINTER_CHANGE_SECONDBUTTON_DOWN, Qt::RightButton}, + {POINTER_CHANGE_SECONDBUTTON_UP, Qt::RightButton}, + {POINTER_CHANGE_THIRDBUTTON_DOWN, Qt::MiddleButton}, + {POINTER_CHANGE_THIRDBUTTON_UP, Qt::MiddleButton}, + {POINTER_CHANGE_FOURTHBUTTON_DOWN, Qt::XButton1}, + {POINTER_CHANGE_FOURTHBUTTON_UP, Qt::XButton1}, + {POINTER_CHANGE_FIFTHBUTTON_DOWN, Qt::XButton2}, + {POINTER_CHANGE_FIFTHBUTTON_UP, Qt::XButton2}, + }; + + static const QHash<UINT, QEvent::Type> eventMapping { + {WM_POINTERUPDATE, QEvent::MouseMove}, + {WM_POINTERDOWN, QEvent::MouseButtonPress}, + {WM_POINTERUP, QEvent::MouseButtonRelease}, + {WM_NCPOINTERUPDATE, QEvent::NonClientAreaMouseMove}, + {WM_NCPOINTERDOWN, QEvent::NonClientAreaMouseButtonPress}, + {WM_NCPOINTERUP, QEvent::NonClientAreaMouseButtonRelease}, + {WM_POINTERWHEEL, QEvent::Wheel}, + {WM_POINTERHWHEEL, QEvent::Wheel}, + }; + + if (!eventType || !mouseButton) + return; + + if (message == WM_POINTERDOWN || message == WM_POINTERUP || message == WM_NCPOINTERDOWN || message == WM_NCPOINTERUP) + *mouseButton = buttonMapping.value(changeType, Qt::NoButton); + else + *mouseButton = Qt::NoButton; + + *eventType = eventMapping.value(message, QEvent::None); + + // Pointer messages lack a double click indicator. Check if this is the case here. + if (message == WM_POINTERDOWN) { + static LONG lastTime = 0; + static Qt::MouseButton lastButton = Qt::NoButton; + static QPoint lastPos; + LONG messageTime = GetMessageTime(); + if (*mouseButton == lastButton + && messageTime - lastTime < (LONG)GetDoubleClickTime() + && qAbs(globalPos.x() - lastPos.x()) < GetSystemMetrics(SM_CXDOUBLECLK) + && qAbs(globalPos.y() - lastPos.y()) < GetSystemMetrics(SM_CYDOUBLECLK)) { + *eventType = QEvent::MouseButtonDblClick; + } + lastTime = messageTime; + lastButton = *mouseButton; + lastPos = globalPos; + } +} + +static QWindow *getWindowUnderPointer(QWindow *window, QPoint globalPos) +{ + QWindow *currentWindowUnderPointer = QWindowsScreen::windowAt(globalPos, CWP_SKIPINVISIBLE | CWP_SKIPTRANSPARENT); + + while (currentWindowUnderPointer && currentWindowUnderPointer->flags() & Qt::WindowTransparentForInput) + currentWindowUnderPointer = currentWindowUnderPointer->parent(); + + // QTBUG-44332: When Qt is running at low integrity level and + // a Qt Window is parented on a Window of a higher integrity process + // using QWindow::fromWinId() (for example, Qt running in a browser plugin) + // ChildWindowFromPointEx() may not find the Qt window (failing with ERROR_ACCESS_DENIED) + if (!currentWindowUnderPointer) { + const QRect clientRect(QPoint(0, 0), window->size()); + if (clientRect.contains(globalPos)) + currentWindowUnderPointer = window; + } + return currentWindowUnderPointer; +} + +static bool trackLeave(HWND hwnd) +{ + TRACKMOUSEEVENT tme; + tme.cbSize = sizeof(TRACKMOUSEEVENT); + tme.dwFlags = TME_LEAVE; + tme.hwndTrack = hwnd; + tme.dwHoverTime = HOVER_DEFAULT; + return TrackMouseEvent(&tme); +} + +static bool isValidWheelReceiver(QWindow *candidate) +{ + if (candidate) { + const QWindow *toplevel = QWindowsWindow::topLevelOf(candidate); + if (toplevel->handle() && toplevel->handle()->isForeignWindow()) + return true; + if (const QWindowsWindow *ww = QWindowsWindow::windowsWindowOf(toplevel)) + return !ww->testFlag(QWindowsWindow::BlockedByModal); + } + return false; +} + +static QTouchDevice *createTouchDevice() +{ + const int digitizers = GetSystemMetrics(SM_DIGITIZER); + if (!(digitizers & (NID_INTEGRATED_TOUCH | NID_EXTERNAL_TOUCH))) + return nullptr; + const int tabletPc = GetSystemMetrics(SM_TABLETPC); + const int maxTouchPoints = GetSystemMetrics(SM_MAXIMUMTOUCHES); + qCDebug(lcQpaEvents) << "Digitizers:" << hex << showbase << (digitizers & ~NID_READY) + << "Ready:" << (digitizers & NID_READY) << dec << noshowbase + << "Tablet PC:" << tabletPc << "Max touch points:" << maxTouchPoints; + QTouchDevice *result = new QTouchDevice; + result->setType(digitizers & NID_INTEGRATED_TOUCH + ? QTouchDevice::TouchScreen : QTouchDevice::TouchPad); + QTouchDevice::Capabilities capabilities = QTouchDevice::Position | QTouchDevice::Area | QTouchDevice::NormalizedPosition; + if (result->type() == QTouchDevice::TouchPad) + capabilities |= QTouchDevice::MouseEmulation; + result->setCapabilities(capabilities); + result->setMaximumTouchPoints(maxTouchPoints); + return result; +} + +QTouchDevice *QWindowsPointerHandler::ensureTouchDevice() +{ + if (!m_touchDevice) + m_touchDevice = createTouchDevice(); + return m_touchDevice; +} + +Qt::MouseButtons QWindowsPointerHandler::queryMouseButtons() +{ + Qt::MouseButtons result = 0; + const bool mouseSwapped = GetSystemMetrics(SM_SWAPBUTTON); + if (GetAsyncKeyState(VK_LBUTTON) < 0) + result |= mouseSwapped ? Qt::RightButton: Qt::LeftButton; + if (GetAsyncKeyState(VK_RBUTTON) < 0) + result |= mouseSwapped ? Qt::LeftButton : Qt::RightButton; + if (GetAsyncKeyState(VK_MBUTTON) < 0) + result |= Qt::MidButton; + if (GetAsyncKeyState(VK_XBUTTON1) < 0) + result |= Qt::XButton1; + if (GetAsyncKeyState(VK_XBUTTON2) < 0) + result |= Qt::XButton2; + return result; +} + +bool QWindowsPointerHandler::translateMouseTouchPadEvent(QWindow *window, HWND hwnd, + QtWindows::WindowsEventType et, + MSG msg, PVOID vPointerInfo) +{ + POINTER_INFO *pointerInfo = static_cast<POINTER_INFO *>(vPointerInfo); + const QPoint globalPos = QPoint(pointerInfo->ptPixelLocation.x, pointerInfo->ptPixelLocation.y); + const QPoint localPos = QWindowsGeometryHint::mapFromGlobal(hwnd, globalPos); + const Qt::KeyboardModifiers keyModifiers = QWindowsKeyMapper::queryKeyboardModifiers(); + const Qt::MouseButtons mouseButtons = queryMouseButtons(); + + QWindow *currentWindowUnderPointer = getWindowUnderPointer(window, globalPos); + QWindowsWindow *platformWindow = static_cast<QWindowsWindow *>(window->handle()); + + switch (msg.message) { + case WM_NCPOINTERDOWN: + case WM_NCPOINTERUP: + case WM_NCPOINTERUPDATE: + case WM_POINTERDOWN: + case WM_POINTERUP: + case WM_POINTERUPDATE: { + + QEvent::Type eventType; + Qt::MouseButton button; + getMouseEventInfo(msg.message, pointerInfo->ButtonChangeType, globalPos, &eventType, &button); + + if (et & QtWindows::NonClientEventFlag) { + QWindowSystemInterface::handleFrameStrutMouseEvent(window, localPos, globalPos, mouseButtons, button, eventType, + keyModifiers, Qt::MouseEventNotSynthesized); + return false; // To allow window dragging, etc. + } else { + if (currentWindowUnderPointer != m_windowUnderPointer) { + if (m_windowUnderPointer && m_windowUnderPointer == m_currentWindow) { + QWindowSystemInterface::handleLeaveEvent(m_windowUnderPointer); + m_currentWindow = nullptr; + } + + if (currentWindowUnderPointer) { + if (currentWindowUnderPointer != m_currentWindow) { + QWindowSystemInterface::handleEnterEvent(currentWindowUnderPointer, localPos, globalPos); + m_currentWindow = currentWindowUnderPointer; + if (QWindowsWindow *wumPlatformWindow = QWindowsWindow::windowsWindowOf(currentWindowUnderPointer)) + wumPlatformWindow->applyCursor(); + trackLeave(hwnd); + } + } else { + platformWindow->applyCursor(); + } + m_windowUnderPointer = currentWindowUnderPointer; + } + + QWindowSystemInterface::handleMouseEvent(window, localPos, globalPos, mouseButtons, button, eventType, + keyModifiers, Qt::MouseEventNotSynthesized); + + // The initial down click over the QSizeGrip area, which posts a resize WM_SYSCOMMAND + // has go to through DefWindowProc() for resizing to work, so we return false here, + // unless the mouse is captured, as it would mess with menu processing. + return msg.message != WM_POINTERDOWN || GetCapture(); + } + } + case WM_POINTERHWHEEL: + case WM_POINTERWHEEL: { + + int delta = GET_WHEEL_DELTA_WPARAM(msg.wParam); + + // Qt horizontal wheel rotation orientation is opposite to the one in WM_POINTERHWHEEL + if (msg.message == WM_POINTERHWHEEL) + delta = -delta; + + const QPoint angleDelta = (msg.message == WM_POINTERHWHEEL || (keyModifiers & Qt::AltModifier)) ? + QPoint(delta, 0) : QPoint(0, delta); + + if (isValidWheelReceiver(window)) + QWindowSystemInterface::handleWheelEvent(window, localPos, globalPos, QPoint(), angleDelta, keyModifiers); + return true; + } + case WM_POINTERLEAVE: + return true; + } + return false; +} + +bool QWindowsPointerHandler::translateTouchEvent(QWindow *window, HWND hwnd, + QtWindows::WindowsEventType et, + MSG msg, PVOID vTouchInfo, quint32 count) +{ + Q_UNUSED(hwnd); + Q_UNUSED(et); + + if (et & QtWindows::NonClientEventFlag) + return false; // Let DefWindowProc() handle Non Client messages. + + if (count < 1) + return false; + + if (msg.message == WM_POINTERCAPTURECHANGED) { + QWindowSystemInterface::handleTouchCancelEvent(window, m_touchDevice, + QWindowsKeyMapper::queryKeyboardModifiers()); + m_lastTouchPositions.clear(); + return true; + } + + // Only handle down/up/update, ignore others like WM_POINTERENTER, WM_POINTERLEAVE, etc. + if (msg.message > WM_POINTERUP) + return false; + + const QScreen *screen = window->screen(); + if (!screen) + screen = QGuiApplication::primaryScreen(); + if (!screen) + return false; + + POINTER_TOUCH_INFO *touchInfo = static_cast<POINTER_TOUCH_INFO *>(vTouchInfo); + + const QRect screenGeometry = screen->geometry(); + + QList<QWindowSystemInterface::TouchPoint> touchPoints; + + if (QWindowsContext::verbose > 1) + qCDebug(lcQpaEvents).noquote().nospace() << showbase + << __FUNCTION__ + << " message=" << hex << msg.message + << " count=" << dec << count; + + for (quint32 i = 0; i < count; ++i) { + if (QWindowsContext::verbose > 1) + qCDebug(lcQpaEvents).noquote().nospace() << showbase + << " TouchPoint id=" << touchInfo[i].pointerInfo.pointerId + << " frame=" << touchInfo[i].pointerInfo.frameId + << " flags=" << hex << touchInfo[i].pointerInfo.pointerFlags; + + QWindowSystemInterface::TouchPoint touchPoint; + touchPoint.id = touchInfo[i].pointerInfo.pointerId; + touchPoint.pressure = (touchInfo[i].touchMask & TOUCH_MASK_PRESSURE) ? + touchInfo[i].pressure / 1024.0 : 1.0; + if (m_lastTouchPositions.contains(touchPoint.id)) + touchPoint.normalPosition = m_lastTouchPositions.value(touchPoint.id); + + const QPointF screenPos = QPointF(touchInfo[i].pointerInfo.ptPixelLocation.x, + touchInfo[i].pointerInfo.ptPixelLocation.y); + + if (touchInfo[i].touchMask & TOUCH_MASK_CONTACTAREA) + touchPoint.area.setSize(QSizeF(touchInfo[i].rcContact.right - touchInfo[i].rcContact.left, + touchInfo[i].rcContact.bottom - touchInfo[i].rcContact.top)); + touchPoint.area.moveCenter(screenPos); + QPointF normalPosition = QPointF(screenPos.x() / screenGeometry.width(), + screenPos.y() / screenGeometry.height()); + const bool stationaryTouchPoint = (normalPosition == touchPoint.normalPosition); + touchPoint.normalPosition = normalPosition; + + if (touchInfo[i].pointerInfo.pointerFlags & POINTER_FLAG_DOWN) { + touchPoint.state = Qt::TouchPointPressed; + m_lastTouchPositions.insert(touchPoint.id, touchPoint.normalPosition); + } else if (touchInfo[i].pointerInfo.pointerFlags & POINTER_FLAG_UP) { + touchPoint.state = Qt::TouchPointReleased; + m_lastTouchPositions.remove(touchPoint.id); + } else { + touchPoint.state = stationaryTouchPoint ? Qt::TouchPointStationary : Qt::TouchPointMoved; + m_lastTouchPositions.insert(touchPoint.id, touchPoint.normalPosition); + } + touchPoints.append(touchPoint); + + // Avoid getting repeated messages for this frame if there are multiple pointerIds + QWindowsContext::user32dll.skipPointerFrameMessages(touchInfo[i].pointerInfo.pointerId); + } + + QWindowSystemInterface::handleTouchEvent(window, m_touchDevice, touchPoints, + QWindowsKeyMapper::queryKeyboardModifiers()); + + return true; +} + +bool QWindowsPointerHandler::translatePenEvent(QWindow *window, HWND hwnd, QtWindows::WindowsEventType et, + MSG msg, PVOID vPenInfo) +{ + if (et & QtWindows::NonClientEventFlag) + return false; // Let DefWindowProc() handle Non Client messages. + + POINTER_PEN_INFO *penInfo = static_cast<POINTER_PEN_INFO *>(vPenInfo); + + RECT pRect, dRect; + if (!QWindowsContext::user32dll.getPointerDeviceRects(penInfo->pointerInfo.sourceDevice, &pRect, &dRect)) + return false; + + const quint32 pointerId = penInfo->pointerInfo.pointerId; + const QPoint globalPos = QPoint(penInfo->pointerInfo.ptPixelLocation.x, penInfo->pointerInfo.ptPixelLocation.y); + const QPoint localPos = QWindowsGeometryHint::mapFromGlobal(hwnd, globalPos); + const QPointF hiResGlobalPos = QPointF(dRect.left + qreal(penInfo->pointerInfo.ptHimetricLocation.x - pRect.left) + / (pRect.right - pRect.left) * (dRect.right - dRect.left), + dRect.top + qreal(penInfo->pointerInfo.ptHimetricLocation.y - pRect.top) + / (pRect.bottom - pRect.top) * (dRect.bottom - dRect.top)); + const qreal pressure = (penInfo->penMask & PEN_MASK_PRESSURE) ? qreal(penInfo->pressure) / 1024.0 : 0.5; + const qreal rotation = (penInfo->penMask & PEN_MASK_ROTATION) ? qreal(penInfo->rotation) : 0.0; + const qreal tangentialPressure = 0.0; + const int xTilt = (penInfo->penMask & PEN_MASK_TILT_X) ? penInfo->tiltX : 0; + const int yTilt = (penInfo->penMask & PEN_MASK_TILT_Y) ? penInfo->tiltY : 0; + const int z = 0; + + if (QWindowsContext::verbose > 1) + qCDebug(lcQpaEvents).noquote().nospace() << showbase + << __FUNCTION__ << " pointerId=" << pointerId + << " globalPos=" << globalPos << " localPos=" << localPos << " hiResGlobalPos=" << hiResGlobalPos + << " message=" << hex << msg.message + << " flags=" << hex << penInfo->pointerInfo.pointerFlags; + + const QTabletEvent::TabletDevice device = QTabletEvent::Stylus; + QTabletEvent::PointerType type; + Qt::MouseButtons mouseButtons; + + const bool pointerInContact = IS_POINTER_INCONTACT_WPARAM(msg.wParam); + if (pointerInContact) + mouseButtons = Qt::LeftButton; + + if (penInfo->penFlags & (PEN_FLAG_ERASER | PEN_FLAG_INVERTED)) { + type = QTabletEvent::Eraser; + } else { + type = QTabletEvent::Pen; + if (pointerInContact && penInfo->penFlags & PEN_FLAG_BARREL) + mouseButtons = Qt::RightButton; // Either left or right, not both + } + + switch (msg.message) { + case WM_POINTERENTER: { + QWindowSystemInterface::handleTabletEnterProximityEvent(device, type, pointerId); + m_windowUnderPointer = window; + // The local coordinates may fall outside the window. + // Wait until the next update to send the enter event. + m_needsEnterOnPointerUpdate = true; + break; + } + case WM_POINTERLEAVE: + if (m_windowUnderPointer && m_windowUnderPointer == m_currentWindow) { + QWindowSystemInterface::handleLeaveEvent(m_windowUnderPointer); + m_windowUnderPointer = nullptr; + m_currentWindow = nullptr; + } + QWindowSystemInterface::handleTabletLeaveProximityEvent(device, type, pointerId); + break; + case WM_POINTERDOWN: + case WM_POINTERUP: + case WM_POINTERUPDATE: { + QWindow *target = QGuiApplicationPrivate::tabletDevicePoint(pointerId).target; // Pass to window that grabbed it. + if (!target && m_windowUnderPointer) + target = m_windowUnderPointer; + if (!target) + target = window; + + if (m_needsEnterOnPointerUpdate) { + m_needsEnterOnPointerUpdate = false; + if (window != m_currentWindow) { + QWindowSystemInterface::handleEnterEvent(window, localPos, globalPos); + m_currentWindow = window; + if (QWindowsWindow *wumPlatformWindow = QWindowsWindow::windowsWindowOf(target)) + wumPlatformWindow->applyCursor(); + } + } + const Qt::KeyboardModifiers keyModifiers = QWindowsKeyMapper::queryKeyboardModifiers(); + + QWindowSystemInterface::handleTabletEvent(target, localPos, hiResGlobalPos, device, type, mouseButtons, + pressure, xTilt, yTilt, tangentialPressure, rotation, z, + pointerId, keyModifiers); + break; + } + } + return true; +} + +// SetCursorPos()/TrackMouseEvent() will generate old-style WM_MOUSE messages. Handle them here. +bool QWindowsPointerHandler::translateMouseEvent(QWindow *window, HWND hwnd, QtWindows::WindowsEventType et, MSG msg, LRESULT *result) +{ + Q_UNUSED(et); + + *result = 0; + if (msg.message != WM_MOUSELEAVE && msg.message != WM_MOUSEMOVE) + return false; + + const QPoint localPos(GET_X_LPARAM(msg.lParam), GET_Y_LPARAM(msg.lParam)); + const QPoint globalPos = QWindowsGeometryHint::mapToGlobal(hwnd, localPos); + + QWindowsWindow *platformWindow = static_cast<QWindowsWindow *>(window->handle()); + + if (msg.message == WM_MOUSELEAVE) { + if (window == m_currentWindow) { + QWindowSystemInterface::handleLeaveEvent(window); + m_windowUnderPointer = nullptr; + m_currentWindow = nullptr; + platformWindow->applyCursor(); + } + return false; + } + + // Windows sends a mouse move with no buttons pressed to signal "Enter" + // when a window is shown over the cursor. Discard the event and only use + // it for generating QEvent::Enter to be consistent with other platforms - + // X11 and macOS. + static QPoint lastMouseMovePos; + const bool discardEvent = msg.wParam == 0 && (m_windowUnderPointer.isNull() || globalPos == lastMouseMovePos); + lastMouseMovePos = globalPos; + + QWindow *currentWindowUnderPointer = getWindowUnderPointer(window, globalPos); + + if (currentWindowUnderPointer != m_windowUnderPointer) { + if (m_windowUnderPointer && m_windowUnderPointer == m_currentWindow) { + QWindowSystemInterface::handleLeaveEvent(m_windowUnderPointer); + m_currentWindow = nullptr; + } + + if (currentWindowUnderPointer) { + if (currentWindowUnderPointer != m_currentWindow) { + QWindowSystemInterface::handleEnterEvent(currentWindowUnderPointer, localPos, globalPos); + m_currentWindow = currentWindowUnderPointer; + if (QWindowsWindow *wumPlatformWindow = QWindowsWindow::windowsWindowOf(currentWindowUnderPointer)) + wumPlatformWindow->applyCursor(); + trackLeave(hwnd); + } + } else { + platformWindow->applyCursor(); + } + m_windowUnderPointer = currentWindowUnderPointer; + } + + const Qt::KeyboardModifiers keyModifiers = QWindowsKeyMapper::queryKeyboardModifiers(); + const Qt::MouseButtons mouseButtons = queryMouseButtons(); + + if (!discardEvent) + QWindowSystemInterface::handleMouseEvent(window, localPos, globalPos, mouseButtons, Qt::NoButton, QEvent::MouseMove, + keyModifiers, Qt::MouseEventNotSynthesized); + return false; +} + +QT_END_NAMESPACE |