From db00428f146a7daf2c8b5c4de6c8c1e317f950a4 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周日, 10 12月 2023 23:46:31 +0800
Subject: [PATCH] Fix macro definition mistake
---
src/core/contexts/win32windowcontext.cpp | 384 ++++++++++++++++++++++++++++++++++++++++++------------
1 files changed, 300 insertions(+), 84 deletions(-)
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 27e5347..4d08adc 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -5,7 +5,6 @@
#include <QtCore/QHash>
#include <QtCore/QAbstractNativeEventFilter>
-#include <QtCore/QOperatingSystemVersion>
#include <QtCore/QScopeGuard>
#include <QtGui/QGuiApplication>
@@ -23,19 +22,29 @@
#include <shellscalingapi.h>
#include <dwmapi.h>
+#include <timeapi.h>
+#include <versionhelpers.h>
+#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
Q_DECLARE_METATYPE(QMargins)
+#endif
namespace QWK {
- static constexpr const auto kAutoHideTaskBarThickness =
- quint8{2}; // The thickness of an auto-hide taskbar in pixels.
+ // The thickness of an auto-hide taskbar in pixels.
+ static constexpr const auto kAutoHideTaskBarThickness = quint8{2};
- using WndProcHash = QHash<HWND, Win32WindowContext *>; // hWnd -> context
+ // hWnd -> context
+ using WndProcHash = QHash<HWND, Win32WindowContext *>;
Q_GLOBAL_STATIC(WndProcHash, g_wndProcHash)
- static WNDPROC g_qtWindowProc = nullptr; // Original Qt window proc function
+ // Original Qt window proc function
+ static WNDPROC g_qtWindowProc = nullptr;
+ // ### FIXME FIXME FIXME
+ // ### FIXME: Tell the user to call in the documentation, instead of automatically
+ // calling it directly.
+ // ### FIXME FIXME FIXME
static struct QWK_Hook {
QWK_Hook() {
qApp->setAttribute(Qt::AA_DontCreateNativeWidgetSiblings);
@@ -43,27 +52,52 @@
} g_hook{};
struct DynamicApis {
- decltype(&::DwmFlush) pDwmFlush = nullptr;
- decltype(&::DwmIsCompositionEnabled) pDwmIsCompositionEnabled = nullptr;
- decltype(&::GetDpiForWindow) pGetDpiForWindow = nullptr;
- decltype(&::GetSystemMetricsForDpi) pGetSystemMetricsForDpi = nullptr;
- decltype(&::GetDpiForMonitor) pGetDpiForMonitor = nullptr;
+// template <typename T>
+// struct DefaultFunc;
+//
+// template <typename Return, typename... Args>
+// struct DefaultFunc<Return(QT_WIN_CALLBACK *)(Args...)> {
+// static Return STDAPICALLTYPE func(Args...) {
+// return Return{};
+// }
+// };
+//
+// #define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME = DefaultFunc<decltype(&::NAME)>::func
+#define DYNAMIC_API_DECLARE(NAME) decltype(&::NAME) p##NAME = nullptr
+
+ DYNAMIC_API_DECLARE(DwmFlush);
+ DYNAMIC_API_DECLARE(DwmIsCompositionEnabled);
+ DYNAMIC_API_DECLARE(DwmGetCompositionTimingInfo);
+ DYNAMIC_API_DECLARE(GetDpiForWindow);
+ DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
+ DYNAMIC_API_DECLARE(GetDpiForMonitor);
+ DYNAMIC_API_DECLARE(timeGetDevCaps);
+ DYNAMIC_API_DECLARE(timeBeginPeriod);
+ DYNAMIC_API_DECLARE(timeEndPeriod);
+
+#undef DYNAMIC_API_DECLARE
DynamicApis() {
- QSystemLibrary user32(QStringLiteral("user32.dll"));
- pGetDpiForWindow =
- reinterpret_cast<decltype(pGetDpiForWindow)>(user32.resolve("GetDpiForWindow"));
- pGetSystemMetricsForDpi = reinterpret_cast<decltype(pGetSystemMetricsForDpi)>(
- user32.resolve("GetSystemMetricsForDpi"));
+#define DYNAMIC_API_RESOLVE(DLL, NAME) p##NAME = reinterpret_cast<decltype(p##NAME)>(DLL.resolve(#NAME))
- QSystemLibrary shcore(QStringLiteral("shcore.dll"));
- pGetDpiForMonitor =
- reinterpret_cast<decltype(pGetDpiForMonitor)>(shcore.resolve("GetDpiForMonitor"));
+ QSystemLibrary user32(QStringLiteral("user32"));
+ DYNAMIC_API_RESOLVE(user32, GetDpiForWindow);
+ DYNAMIC_API_RESOLVE(user32, GetSystemMetricsForDpi);
- QSystemLibrary dwmapi(QStringLiteral("dwmapi.dll"));
- pDwmFlush = reinterpret_cast<decltype(pDwmFlush)>(dwmapi.resolve("DwmFlush"));
- pDwmIsCompositionEnabled = reinterpret_cast<decltype(pDwmIsCompositionEnabled)>(
- dwmapi.resolve("DwmIsCompositionEnabled"));
+ QSystemLibrary shcore(QStringLiteral("shcore"));
+ DYNAMIC_API_RESOLVE(shcore, GetDpiForMonitor);
+
+ QSystemLibrary dwmapi(QStringLiteral("dwmapi"));
+ DYNAMIC_API_RESOLVE(dwmapi, DwmFlush);
+ DYNAMIC_API_RESOLVE(dwmapi, DwmIsCompositionEnabled);
+ DYNAMIC_API_RESOLVE(dwmapi, DwmGetCompositionTimingInfo);
+
+ QSystemLibrary winmm(QStringLiteral("winmm"));
+ DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
+ DYNAMIC_API_RESOLVE(winmm, timeBeginPeriod);
+ DYNAMIC_API_RESOLVE(winmm, timeEndPeriod);
+
+#undef DYNAMIC_API_RESOLVE
}
~DynamicApis() = default;
@@ -158,20 +192,22 @@
}
static inline bool isWin8OrGreater() {
- static const bool result =
- QOperatingSystemVersion::current() >= QOperatingSystemVersion::Windows8;
+ static const bool result = ::IsWindows8OrGreater();
return result;
}
static inline bool isWin8Point1OrGreater() {
- static const bool result =
- QOperatingSystemVersion::current() >= QOperatingSystemVersion::Windows8_1;
+ static const bool result = ::IsWindows8Point1OrGreater();
return result;
}
static inline bool isWin10OrGreater() {
- static const bool result =
- QOperatingSystemVersion::current() >= QOperatingSystemVersion::Windows10;
+ static const bool result = ::IsWindows10OrGreater();
+ return result;
+ }
+
+ static inline bool isWin11OrGreater() {
+ static const bool result = ::IsWindowsVersionOrGreater(HIBYTE(_WIN32_WINNT_WIN10), LOBYTE(_WIN32_WINNT_WIN10), 22000);
return result;
}
@@ -199,8 +235,8 @@
return apis.pGetDpiForWindow(hwnd);
} else if (apis.pGetDpiForMonitor) { // Win8.1
HMONITOR monitor = ::MonitorFromWindow(hwnd, MONITOR_DEFAULTTONEAREST);
- UINT dpiX{USER_DEFAULT_SCREEN_DPI};
- UINT dpiY{USER_DEFAULT_SCREEN_DPI};
+ UINT dpiX{0};
+ UINT dpiY{0};
apis.pGetDpiForMonitor(monitor, MDT_EFFECTIVE_DPI, &dpiX, &dpiY);
return dpiX;
} else { // Win2K
@@ -251,7 +287,7 @@
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
if (QPlatformWindow *platformWindow = window->handle()) {
if (const auto ni = QGuiApplication::platformNativeInterface()) {
- ni->setWindowProperty(platformWindow, QStringLiteral("_q_windowsCustomMargins"),
+ ni->setWindowProperty(platformWindow, QStringLiteral("WindowsCustomMargins"),
marginsVar);
}
}
@@ -284,10 +320,6 @@
}
static inline bool isFullScreen(HWND hwnd) {
- Q_ASSERT(hwnd);
- if (!hwnd) {
- return false;
- }
RECT windowRect{};
::GetWindowRect(hwnd, &windowRect);
// Compare to the full area of the screen, not the work area.
@@ -295,10 +327,6 @@
}
static inline bool isWindowNoState(HWND hwnd) {
- Q_ASSERT(hwnd);
- if (!hwnd) {
- return false;
- }
#if 0
WINDOWPLACEMENT wp{};
wp.length = sizeof(wp);
@@ -310,16 +338,109 @@
#endif
}
- static inline QPoint fromNativeLocalPosition(const QWindow *window, const QPoint &point) {
- Q_ASSERT(window);
- if (!window) {
- return point;
+ static inline void syncPaintEventWithDwm() {
+ // No need to sync with DWM if DWM composition is disabled.
+ if (!isDwmCompositionEnabled()) {
+ return;
}
-#if 1
- return QHighDpi::fromNativeLocalPosition(point, window);
-#else
- return QPointF(QPointF(point) / window->devicePixelRatio()).toPoint();
-#endif
+ const DynamicApis &apis = DynamicApis::instance();
+ // Dirty hack to workaround the resize flicker caused by DWM.
+ LARGE_INTEGER freq{};
+ ::QueryPerformanceFrequency(&freq);
+ TIMECAPS tc{};
+ apis.ptimeGetDevCaps(&tc, sizeof(tc));
+ const UINT ms_granularity = tc.wPeriodMin;
+ apis.ptimeBeginPeriod(ms_granularity);
+ LARGE_INTEGER now0{};
+ ::QueryPerformanceCounter(&now0);
+ // ask DWM where the vertical blank falls
+ DWM_TIMING_INFO dti{};
+ dti.cbSize = sizeof(dti);
+ apis.pDwmGetCompositionTimingInfo(nullptr, &dti);
+ LARGE_INTEGER now1{};
+ ::QueryPerformanceCounter(&now1);
+ // - DWM told us about SOME vertical blank
+ // - past or future, possibly many frames away
+ // - convert that into the NEXT vertical blank
+ const auto period = qreal(dti.qpcRefreshPeriod);
+ const auto dt = qreal(dti.qpcVBlank - now1.QuadPart);
+ const qreal ratio = (dt / period);
+ auto w = qreal(0);
+ auto m = qreal(0);
+ if ((dt > qreal(0)) || qFuzzyIsNull(dt)) {
+ w = ratio;
+ } else {
+ // reach back to previous period
+ // - so m represents consistent position within phase
+ w = (ratio - qreal(1));
+ }
+ m = (dt - (period * w));
+ if ((m < qreal(0)) || qFuzzyCompare(m, period) || (m > period)) {
+ return;
+ }
+ const qreal m_ms = (qreal(1000) * m / qreal(freq.QuadPart));
+ ::Sleep(static_cast<DWORD>(std::round(m_ms)));
+ apis.ptimeEndPeriod(ms_granularity);
+ }
+
+ static inline void showSystemMenu2(HWND hWnd, const POINT &pos, const bool selectFirstEntry, const bool fixedSize)
+ {
+ const HMENU hMenu = ::GetSystemMenu(hWnd, FALSE);
+ if (!hMenu) {
+ // The corresponding window doesn't have a system menu, most likely due to the
+ // lack of the "WS_SYSMENU" window style. This situation should not be treated
+ // as an error so just ignore it and return early.
+ return;
+ }
+
+ const bool maxOrFull = IsMaximized(hWnd) || isFullScreen(hWnd);
+ ::EnableMenuItem(hMenu, SC_CLOSE, (MF_BYCOMMAND | MFS_ENABLED));
+ ::EnableMenuItem(hMenu, SC_MAXIMIZE, (MF_BYCOMMAND | ((maxOrFull || fixedSize) ? MFS_DISABLED : MFS_ENABLED)));
+ ::EnableMenuItem(hMenu, SC_RESTORE, (MF_BYCOMMAND | ((maxOrFull && !fixedSize) ? MFS_ENABLED : MFS_DISABLED)));
+ // The first menu item should be selected by default if the menu is brought
+ // up by keyboard. I don't know how to pre-select a menu item but it seems
+ // highlight can do the job. However, there's an annoying issue if we do
+ // this manually: the highlighted menu item is really only highlighted,
+ // not selected, so even if the mouse cursor hovers on other menu items
+ // or the user navigates to other menu items through keyboard, the original
+ // highlight bar will not move accordingly, the OS will generate another
+ // highlight bar to indicate the current selected menu item, which will make
+ // the menu look kind of weird. Currently I don't know how to fix this issue.
+ ::HiliteMenuItem(hWnd, hMenu, SC_RESTORE, (MF_BYCOMMAND | (selectFirstEntry ? MFS_HILITE : MFS_UNHILITE)));
+ ::EnableMenuItem(hMenu, SC_MINIMIZE, (MF_BYCOMMAND | MFS_ENABLED));
+ ::EnableMenuItem(hMenu, SC_SIZE, (MF_BYCOMMAND | ((maxOrFull || fixedSize) ? MFS_DISABLED : MFS_ENABLED)));
+ ::EnableMenuItem(hMenu, SC_MOVE, (MF_BYCOMMAND | (maxOrFull ? MFS_DISABLED : MFS_ENABLED)));
+
+ // The default menu item will appear in bold font. There can only be one default
+ // menu item per menu at most. Set the item ID to "UINT_MAX" (or simply "-1")
+ // can clear the default item for the given menu.
+ UINT defaultItemId = UINT_MAX;
+ if (isWin11OrGreater()) {
+ if (maxOrFull) {
+ defaultItemId = SC_RESTORE;
+ } else {
+ defaultItemId = SC_MAXIMIZE;
+ }
+ }
+ if (defaultItemId == UINT_MAX) {
+ defaultItemId = SC_CLOSE;
+ }
+ ::SetMenuDefaultItem(hMenu, defaultItemId, FALSE);
+
+ // Popup the system menu at the required position.
+ const auto result = ::TrackPopupMenu(hMenu, (TPM_RETURNCMD | (QGuiApplication::isRightToLeft() ? TPM_RIGHTALIGN : TPM_LEFTALIGN)), pos.x, pos.y, 0, hWnd, nullptr);
+
+ // Unhighlight the first menu item after the popup menu is closed, otherwise it will keep
+ // highlighting until we unhighlight it manually.
+ ::HiliteMenuItem(hWnd, hMenu, SC_RESTORE, (MF_BYCOMMAND | MFS_UNHILITE));
+
+ if (!result) {
+ // The user canceled the menu, no need to continue.
+ return;
+ }
+
+ // Send the command that the user chooses to the corresponding window.
+ ::PostMessageW(hWnd, WM_SYSCOMMAND, result, 0);
}
static inline Win32WindowContext::WindowPart getHitWindowPart(int hitTestResult) {
@@ -396,9 +517,6 @@
QT_NATIVE_EVENT_RESULT_TYPE *result) override {
Q_UNUSED(eventType)
- auto orgLastMessageContext = lastMessageContext;
- lastMessageContext = nullptr;
-
// It has been observed that the pointer that Qt gives us is sometimes null on some
// machines. We need to guard against it in such scenarios.
if (!result) {
@@ -407,11 +525,11 @@
// https://github.com/qt/qtbase/blob/e26a87f1ecc40bc8c6aa5b889fce67410a57a702/src/plugins/platforms/windows/qwindowscontext.cpp#L1546
// Qt needs to refer to the WM_NCCALCSIZE message data that hasn't been processed, so we
- // have to process it after Qt acquired the initial data.
- auto msg = reinterpret_cast<const MSG *>(message);
- if (msg->message == WM_NCCALCSIZE && orgLastMessageContext) {
+ // have to process it after Qt acquires the initial data.
+ auto msg = static_cast<const MSG *>(message);
+ if (msg->message == WM_NCCALCSIZE && lastMessageContext) {
LRESULT res;
- if (Win32WindowContext::nonClientCalcSizeHandler(msg->hwnd, msg->message,
+ if (lastMessageContext->nonClientCalcSizeHandler(msg->hwnd, msg->message,
msg->wParam, msg->lParam, &res)) {
*result = decltype(*result)(res);
return true;
@@ -424,11 +542,17 @@
static Win32WindowContext *lastMessageContext;
static inline void install() {
+ if (instance) {
+ return;
+ }
instance = new WindowsNativeEventFilter();
installNativeEventFilter(instance);
}
static inline void uninstall() {
+ if (!instance) {
+ return;
+ }
removeNativeEventFilter(instance);
delete instance;
instance = nullptr;
@@ -507,22 +631,18 @@
// forward it right away and process it in our native event filter.
if (message == WM_NCCALCSIZE) {
WindowsNativeEventFilter::lastMessageContext = ctx;
- return ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
+ LRESULT result = ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
+ WindowsNativeEventFilter::lastMessageContext = nullptr;
+ return result;
}
// Try hooked procedure and save result
LRESULT result;
- bool handled = ctx->windowProc(hWnd, message, wParam, lParam, &result);
-
- // TODO: Determine whether to show system menu
- // ...
-
- if (handled) {
+ if (ctx->windowProc(hWnd, message, wParam, lParam, &result)) {
return result;
}
// Continue dispatching.
- WindowsNativeEventFilter::lastMessageContext = ctx;
return ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
}
@@ -558,9 +678,7 @@
::SetWindowLongPtrW(hWnd, GWLP_WNDPROC, reinterpret_cast<LONG_PTR>(QWKHookedWndProc));
// Install global native event filter
- if (!WindowsNativeEventFilter::instance) {
- WindowsNativeEventFilter::install();
- }
+ WindowsNativeEventFilter::install();
// Cache window ID
windowId = winId;
@@ -600,6 +718,10 @@
// Main implementation
if (customWindowHandler(hWnd, message, wParam, lParam, result)) {
+ return true;
+ }
+
+ if (systemMenuHandler(hWnd, message, wParam, lParam, result)) {
return true;
}
@@ -762,8 +884,7 @@
DWORD dwScreenPos = ::GetMessagePos();
POINT screenPoint{GET_X_LPARAM(dwScreenPos), GET_Y_LPARAM(dwScreenPos)};
::ScreenToClient(hWnd, &screenPoint);
- QPoint qtScenePos =
- fromNativeLocalPosition(m_windowHandle, {screenPoint.x, screenPoint.y});
+ QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(point2qpoint(screenPoint), m_windowHandle);
auto dummy = CoreWindowAgent::Unknown;
if (isInSystemButtons(qtScenePos, &dummy)) {
// We must record whether the last WM_MOUSELEAVE was filtered, because if
@@ -811,7 +932,7 @@
const WindowPart currentWindowPart = lastHitTestResult;
if (message == WM_NCMOUSEMOVE) {
if (currentWindowPart != WindowPart::ChromeButton) {
- std::ignore = m_delegate->resetQtGrabbedControl();
+ m_delegate->resetQtGrabbedControl();
if (mouseLeaveBlocked) {
emulateClientAreaMessage(hWnd, message, wParam, lParam,
WM_NCMOUSELEAVE);
@@ -873,7 +994,7 @@
// window from client area, which means we will get previous window part as
// HTCLIENT if the mouse leaves window from client area and enters window
// from non-client area, but it has no bad effect.
- std::ignore = m_delegate->resetQtGrabbedControl();
+ m_delegate->resetQtGrabbedControl();
}
}
break;
@@ -995,8 +1116,7 @@
auto clientWidth = RECT_WIDTH(clientRect);
auto clientHeight = RECT_HEIGHT(clientRect);
- QPoint qtScenePos = fromNativeLocalPosition(
- m_windowHandle, QPoint(nativeLocalPos.x, nativeLocalPos.y));
+ QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(point2qpoint(nativeLocalPos), m_windowHandle);
bool isFixedSize = m_delegate->isHostSizeFixed(m_host);
bool isTitleBar = isInTitleBarDraggableArea(qtScenePos);
@@ -1012,22 +1132,31 @@
// this is also the normal behavior of a native Win32 window (but only when the
// window is not maximized/fullscreen/minimized, of course).
if (isWindowNoState(hWnd)) {
- static constexpr const int kBorderSize = 2;
+ static constexpr const auto kBorderSize = quint8{2};
bool isTop = (nativeLocalPos.y <= kBorderSize);
+ bool isLeft = nativeLocalPos.x <= kBorderSize;
bool isRight = (nativeLocalPos.x >= (clientWidth - kBorderSize));
- if (isTop || isRight) {
+ if (isTop || isLeft || isRight) {
if (dontOverrideCursor) {
// The user doesn't want the window to be resized, so we tell
// Windows we are in the client area so that the controls beneath
// the mouse cursor can still be hovered or clicked.
*result = (isTitleBar ? HTCAPTION : HTCLIENT);
} else {
- if (isTop && isRight) {
- *result = HTTOPRIGHT;
- } else if (isTop) {
- *result = HTTOP;
+ if (isTop) {
+ if (isLeft) {
+ *result = HTTOPLEFT;
+ } else if (isRight) {
+ *result = HTTOPRIGHT;
+ } else {
+ *result = HTTOP;
+ }
} else {
- *result = HTRIGHT;
+ if (isLeft) {
+ *result = HTLEFT;
+ } else {
+ *result = HTRIGHT;
+ }
}
}
}
@@ -1127,9 +1256,9 @@
const bool isBottom = (nativeLocalPos.y >= (clientHeight - frameSize));
// Make the border a little wider to let the user easy to resize on corners.
const auto scaleFactor = ((isTop || isBottom) ? qreal(2) : qreal(1));
- const int scaledFrameSizeX = std::round(qreal(frameSize) * scaleFactor);
- const bool isLeft = (nativeLocalPos.x < scaledFrameSizeX);
- const bool isRight = (nativeLocalPos.x >= (clientWidth - scaledFrameSizeX));
+ const int scaledFrameSize = std::round(qreal(frameSize) * scaleFactor);
+ const bool isLeft = (nativeLocalPos.x < scaledFrameSize);
+ const bool isRight = (nativeLocalPos.x >= (clientWidth - scaledFrameSize));
if (dontOverrideCursor && (isTop || isBottom || isLeft || isRight)) {
// Return HTCLIENT instead of HTBORDER here, because the mouse is
// inside the window now, return HTCLIENT to let the controls
@@ -1247,6 +1376,7 @@
bool Win32WindowContext::nonClientCalcSizeHandler(HWND hWnd, UINT message, WPARAM wParam,
LPARAM lParam, LRESULT *result) {
Q_UNUSED(message)
+ Q_UNUSED(this)
// Windows鏄牴鎹繖涓秷鎭殑杩斿洖鍊兼潵璁剧疆绐楀彛鐨勫鎴峰尯锛堢獥鍙ｄ腑鐪熸鏄剧ず鐨勫唴瀹癸級
// 鍜岄潪瀹㈡埛鍖猴紙鏍囬鏍忋�佺獥鍙ｈ竟妗嗐�佽彍鍗曟爮鍜岀姸鎬佹爮绛塛indows绯荤粺鑷鎻愪緵鐨勯儴鍒�
@@ -1455,8 +1585,9 @@
}
}
}
- // ### TODO: std::ignore = Utils::syncWmPaintWithDwm(); // This should be executed
- // at the very last. By returning WVR_REDRAW we can make the window resizing look
+ // We should call this function only before the function returns.
+ syncPaintEventWithDwm();
+ // By returning WVR_REDRAW we can make the window resizing look
// less broken. But we must return 0 if wParam is FALSE, according to Microsoft
// Docs.
// **IMPORTANT NOTE**:
@@ -1470,4 +1601,89 @@
return true;
}
+ bool Win32WindowContext::systemMenuHandler(HWND hWnd, UINT message, WPARAM wParam,
+ LPARAM lParam, LRESULT *result) {
+ const auto getNativePosFromMouse = [lParam]() -> POINT {
+ return {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
+ };
+ const auto getNativeGlobalPosFromKeyboard = [hWnd]() -> POINT {
+ const bool maxOrFull = IsMaximized(hWnd) || isFullScreen(hWnd);
+ const quint32 frameSize = getResizeBorderThickness(hWnd);
+ const quint32 horizontalOffset = ((maxOrFull || !isWin10OrGreater()) ? 0 : frameSize);
+ const auto verticalOffset = [hWnd, maxOrFull, frameSize]() -> quint32 {
+ const quint32 titleBarHeight = getTitleBarHeight(hWnd);
+ if (!isWin10OrGreater()) {
+ return titleBarHeight;
+ }
+ if (isWin11OrGreater()) {
+ if (maxOrFull) {
+ return (titleBarHeight + frameSize);
+ }
+ return titleBarHeight;
+ }
+ if (maxOrFull) {
+ return titleBarHeight;
+ }
+ return titleBarHeight - frameSize;
+ }();
+ RECT windowPos{};
+ ::GetWindowRect(hWnd, &windowPos);
+ return {static_cast<LONG>(windowPos.left + horizontalOffset), static_cast<LONG>(windowPos.top + verticalOffset)};
+ };
+ bool shouldShowSystemMenu = false;
+ bool broughtByKeyboard = false;
+ POINT nativeGlobalPos{};
+ switch (message) {
+ case WM_RBUTTONUP: {
+ const POINT nativeLocalPos = getNativePosFromMouse();
+ const QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(point2qpoint(nativeLocalPos), m_windowHandle);
+ if (isInTitleBarDraggableArea(qtScenePos)) {
+ shouldShowSystemMenu = true;
+ nativeGlobalPos = nativeLocalPos;
+ ::ClientToScreen(hWnd, &nativeGlobalPos);
+ }
+ break;
+ }
+ case WM_NCRBUTTONUP: {
+ if (wParam == HTCAPTION) {
+ shouldShowSystemMenu = true;
+ nativeGlobalPos = getNativePosFromMouse();
+ }
+ break;
+ }
+ case WM_SYSCOMMAND: {
+ const WPARAM filteredWParam = (wParam & 0xFFF0);
+ if ((filteredWParam == SC_KEYMENU) && (lParam == VK_SPACE)) {
+ shouldShowSystemMenu = true;
+ broughtByKeyboard = true;
+ nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ }
+ break;
+ }
+ case WM_KEYDOWN:
+ case WM_SYSKEYDOWN: {
+ const bool altPressed = ((wParam == VK_MENU) || (::GetKeyState(VK_MENU) < 0));
+ const bool spacePressed = ((wParam == VK_SPACE) || (::GetKeyState(VK_SPACE) < 0));
+ if (altPressed && spacePressed) {
+ shouldShowSystemMenu = true;
+ broughtByKeyboard = true;
+ nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ if (shouldShowSystemMenu) {
+ showSystemMenu2(hWnd, nativeGlobalPos, broughtByKeyboard, m_delegate->isHostSizeFixed(m_host));
+ // QPA's internal code will handle system menu events separately, and its
+ // behavior is not what we would want to see because it doesn't know our
+ // window doesn't have any window frame now, so return early here to avoid
+ // entering Qt's own handling logic.
+ *result = FALSE;
+ return true;
+ }
+ return false;
+ }
+
}
--
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