From 564f33e8b29a6f73050f4da3f843b942aaf0d739 Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周三, 08 5月 2024 19:36:16 +0800
Subject: [PATCH] Improve event filter handling
---
src/core/contexts/win32windowcontext.cpp | 192 +++++++++++++++++++++++++++++++++++++++++------
1 files changed, 165 insertions(+), 27 deletions(-)
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 811fd44..a75efe7 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -35,6 +35,12 @@
namespace QWK {
+ enum IconButtonClickLevelFlag {
+ IconButtonClicked = 1,
+ IconButtonDoubleClicked = 2,
+ IconButtonTriggersClose = 4,
+ };
+
// The thickness of an auto-hide taskbar in pixels.
static constexpr const quint8 kAutoHideTaskBarThickness = 2;
@@ -233,14 +239,15 @@
apis.ptimeEndPeriod(ms_granularity);
}
- static void showSystemMenu2(HWND hWnd, const POINT &pos, const bool selectFirstEntry,
- const bool fixedSize) {
+ // Returns false if the menu is canceled
+ static bool showSystemMenu_sys(HWND hWnd, const POINT &pos, const bool selectFirstEntry,
+ const bool fixedSize) {
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;
+ return true;
}
const bool maxOrFull = IsMaximized(hWnd) || isFullScreen(hWnd);
@@ -284,7 +291,8 @@
// Popup the system menu at the required position.
const auto result = ::TrackPopupMenu(
hMenu,
- (TPM_RETURNCMD | (QGuiApplication::isRightToLeft() ? TPM_RIGHTALIGN : TPM_LEFTALIGN)),
+ (TPM_RETURNCMD | (QGuiApplication::isRightToLeft() ? TPM_RIGHTALIGN : TPM_LEFTALIGN) |
+ TPM_RIGHTBUTTON),
pos.x, pos.y, 0, hWnd, nullptr);
// Unhighlight the first menu item after the popup menu is closed, otherwise it will keep
@@ -293,11 +301,12 @@
if (!result) {
// The user canceled the menu, no need to continue.
- return;
+ return false;
}
// Send the command that the user chooses to the corresponding window.
::PostMessageW(hWnd, WM_SYSCOMMAND, result, 0);
+ return true;
}
static inline Win32WindowContext::WindowPart getHitWindowPart(int hitTestResult) {
@@ -690,12 +699,12 @@
auto hWnd = reinterpret_cast<HWND>(m_windowId);
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
const QPoint nativeGlobalPos =
- QHighDpi::toNativeGlobalPosition(pos, m_windowHandle);
+ QHighDpi::toNativeGlobalPosition(pos, m_windowHandle.data());
#else
- const QPoint nativeGlobalPos = QHighDpi::toNativePixels(pos, m_windowHandle);
+ const QPoint nativeGlobalPos = QHighDpi::toNativePixels(pos, m_windowHandle.data());
#endif
- showSystemMenu2(hWnd, qpoint2point(nativeGlobalPos), false,
- m_delegate->isHostSizeFixed(m_host));
+ std::ignore = showSystemMenu_sys(hWnd, qpoint2point(nativeGlobalPos), false,
+ m_delegate->isHostSizeFixed(m_host));
return;
}
@@ -813,7 +822,6 @@
? int(getWindowFrameBorderThickness(reinterpret_cast<HWND>(m_windowId)))
: 0;
}
-
return AbstractWindowContext::windowAttribute(key);
}
@@ -821,6 +829,7 @@
// Reset the context data
mouseLeaveBlocked = false;
lastHitTestResult = WindowPart::Outside;
+ lastHitTestResultRaw = HTNOWHERE;
if (!isSystemBorderEnabled()) {
m_delegate->setWindowFlags(m_host, m_delegate->getWindowFlags(m_host) |
@@ -1254,7 +1263,7 @@
POINT screenPoint{GET_X_LPARAM(dwScreenPos), GET_Y_LPARAM(dwScreenPos)};
::ScreenToClient(hWnd, &screenPoint);
QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(point2qpoint(screenPoint),
- m_windowHandle);
+ m_windowHandle.data());
auto dummy = WindowAgentBase::Unknown;
if (isInSystemButtons(qtScenePos, &dummy)) {
// We must record whether the last WM_MOUSELEAVE was filtered, because if
@@ -1299,9 +1308,8 @@
case WM_NCPOINTERUP:
#endif
case WM_NCMOUSEHOVER: {
- const WindowPart currentWindowPart = lastHitTestResult;
if (message == WM_NCMOUSEMOVE) {
- if (currentWindowPart != WindowPart::ChromeButton) {
+ if (lastHitTestResult != WindowPart::ChromeButton) {
// https://github.com/qt/qtbase/blob/e26a87f1ecc40bc8c6aa5b889fce67410a57a702/src/widgets/kernel/qwidgetwindow.cpp#L472
// When the mouse press event arrives, QWidgetWindow will implicitly grab
// the top widget right under the mouse, and set `qt_button_down` to this
@@ -1360,14 +1368,50 @@
}
}
- if (currentWindowPart == WindowPart::ChromeButton) {
- emulateClientAreaMessage(hWnd, message, wParam, lParam);
+ if (lastHitTestResult == WindowPart::ChromeButton) {
if (message == WM_NCMOUSEMOVE) {
// ### FIXME FIXME FIXME
// ### FIXME: Calling DefWindowProc() here is really dangerous, investigate
// how to avoid doing this.
// ### FIXME FIXME FIXME
*result = ::DefWindowProcW(hWnd, WM_NCMOUSEMOVE, wParam, lParam);
+ emulateClientAreaMessage(hWnd, message, wParam, lParam);
+ return true;
+ }
+
+ if (lastHitTestResultRaw == HTSYSMENU) {
+ switch (message) {
+ case WM_NCLBUTTONDOWN:
+ if (iconButtonClickLevel == 0) {
+ // A message of WM_SYSCOMMAND with SC_MOUSEMENU will be sent by
+ // Windows, and the current control flow will be blocked by the
+ // menu while Windows will create and execute a new event loop
+ // until the menu returns
+ iconButtonClickTime = ::GetTickCount64();
+ *result = ::DefWindowProcW(hWnd, message, wParam, lParam);
+ iconButtonClickTime = 0;
+ if (iconButtonClickLevel & IconButtonTriggersClose) {
+ ::PostMessageW(hWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
+ }
+ if (iconButtonClickLevel & IconButtonDoubleClicked) {
+ iconButtonClickLevel = 0;
+ }
+ // Otherwise, no need to reset `iconButtonClickLevel` if not to
+ // close, if it has value, there must be another incoming
+ // WM_NCLBUTTONDOWN
+ } else {
+ iconButtonClickLevel = 0;
+ }
+ break;
+ case WM_NCLBUTTONDBLCLK:
+ // A message of WM_SYSCOMMAND with SC_CLOSE will be sent by Windows
+ *result = ::DefWindowProcW(hWnd, message, wParam, lParam);
+ break;
+ default:
+ *result = FALSE;
+ emulateClientAreaMessage(hWnd, message, wParam, lParam);
+ break;
+ }
} else {
// According to MSDN, we should return non-zero for X button messages to
// indicate we have handled these messages (due to historical reasons), for
@@ -1376,6 +1420,7 @@
(((message >= WM_NCXBUTTONDOWN) && (message <= WM_NCXBUTTONDBLCLK))
? TRUE
: FALSE);
+ emulateClientAreaMessage(hWnd, message, wParam, lParam);
}
return true;
}
@@ -1505,7 +1550,8 @@
// color, our homemade top border can almost have exactly the same
// appearance with the system's one.
[[maybe_unused]] const auto &hitTestRecorder = qScopeGuard([this, result]() {
- lastHitTestResult = getHitWindowPart(int(*result)); //
+ lastHitTestResultRaw = int(*result);
+ lastHitTestResult = getHitWindowPart(lastHitTestResultRaw);
});
POINT nativeGlobalPos{GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
@@ -1517,8 +1563,8 @@
auto clientWidth = RECT_WIDTH(clientRect);
auto clientHeight = RECT_HEIGHT(clientRect);
- QPoint qtScenePos =
- QHighDpi::fromNativeLocalPosition(point2qpoint(nativeLocalPos), m_windowHandle);
+ QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(point2qpoint(nativeLocalPos),
+ m_windowHandle.data());
bool isFixedSize = m_delegate->isHostSizeFixed(m_host);
bool isTitleBar = isInTitleBarDraggableArea(qtScenePos);
@@ -2054,12 +2100,16 @@
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)) {
+ const QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(
+ point2qpoint(nativeLocalPos), m_windowHandle.data());
+ WindowAgentBase::SystemButton sysButtonType = WindowAgentBase::Unknown;
+ if (isInTitleBarDraggableArea(qtScenePos) ||
+ (isInSystemButtons(qtScenePos, &sysButtonType) &&
+ sysButtonType == WindowAgentBase::WindowIcon)) {
shouldShowSystemMenu = true;
nativeGlobalPos = nativeLocalPos;
::ClientToScreen(hWnd, &nativeGlobalPos);
@@ -2075,10 +2125,20 @@
}
case WM_SYSCOMMAND: {
const WPARAM filteredWParam = (wParam & 0xFFF0);
- if ((filteredWParam == SC_KEYMENU) && (lParam == VK_SPACE)) {
- shouldShowSystemMenu = true;
- broughtByKeyboard = true;
- nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ switch (filteredWParam) {
+ case SC_MOUSEMENU:
+ shouldShowSystemMenu = true;
+ nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ break;
+ case SC_KEYMENU:
+ if (lParam == VK_SPACE) {
+ shouldShowSystemMenu = true;
+ broughtByKeyboard = true;
+ nativeGlobalPos = getNativeGlobalPosFromKeyboard();
+ }
+ break;
+ default:
+ break;
}
break;
}
@@ -2097,8 +2157,86 @@
break;
}
if (shouldShowSystemMenu) {
- showSystemMenu2(hWnd, nativeGlobalPos, broughtByKeyboard,
- m_delegate->isHostSizeFixed(m_host));
+ static HHOOK mouseHook = nullptr;
+ static std::optional<POINT> mouseClickPos;
+ static bool mouseDoubleClicked = false;
+ bool mouseHookedLocal = false;
+
+ // The menu is triggered by a click on icon button
+ if (iconButtonClickTime > 0) {
+ POINT menuPos{0, static_cast<LONG>(getTitleBarHeight(hWnd))};
+ if (const auto tb = titleBar()) {
+ auto titleBarHeight = qreal(m_delegate->mapGeometryToScene(tb).height());
+ titleBarHeight *= m_windowHandle->devicePixelRatio();
+ menuPos.y = qRound(titleBarHeight);
+ }
+ ::ClientToScreen(hWnd, &menuPos);
+ nativeGlobalPos = menuPos;
+
+ // Install mouse hook
+ if (!mouseHook) {
+ mouseHook = ::SetWindowsHookExW(
+ WH_MOUSE,
+ [](int nCode, WPARAM wParam, LPARAM lParam) {
+ if (nCode >= 0) {
+ switch (wParam) {
+ case WM_LBUTTONDBLCLK:
+ mouseDoubleClicked = true;
+ Q_FALLTHROUGH();
+
+ // case WM_POINTERDOWN:
+
+ case WM_LBUTTONDOWN: {
+ auto pMouseStruct =
+ reinterpret_cast<MOUSEHOOKSTRUCT *>(lParam);
+ if (pMouseStruct) {
+ mouseClickPos = pMouseStruct->pt;
+ }
+ break;
+ }
+ default:
+ break;
+ }
+ }
+ return ::CallNextHookEx(nullptr, nCode, wParam, lParam);
+ },
+ nullptr, ::GetCurrentThreadId());
+ mouseHookedLocal = true;
+ }
+ }
+
+ bool res = showSystemMenu_sys(hWnd, nativeGlobalPos, broughtByKeyboard,
+ m_delegate->isHostSizeFixed(m_host));
+
+ // Uninstall mouse hook and check if it's a double-click
+ if (mouseHookedLocal) {
+ ::UnhookWindowsHookEx(mouseHook);
+
+ // Emulate the Windows icon button's behavior
+ if (!res && mouseClickPos.has_value()) {
+ POINT nativeLocalPos = mouseClickPos.value();
+ ::ScreenToClient(hWnd, &nativeLocalPos);
+ QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(
+ point2qpoint(nativeLocalPos), m_windowHandle.data());
+ WindowAgentBase::SystemButton sysButtonType = WindowAgentBase::Unknown;
+ if (isInSystemButtons(qtScenePos, &sysButtonType) &&
+ sysButtonType == WindowAgentBase::WindowIcon) {
+ iconButtonClickLevel |= IconButtonClicked;
+ if (::GetTickCount64() - iconButtonClickTime <= ::GetDoubleClickTime()) {
+ iconButtonClickLevel |= IconButtonTriggersClose;
+ }
+ }
+ }
+
+ if (mouseDoubleClicked) {
+ iconButtonClickLevel |= IconButtonDoubleClicked;
+ }
+
+ mouseHook = nullptr;
+ mouseClickPos.reset();
+ mouseDoubleClicked = false;
+ }
+
// 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
--
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