From a9c357c40d29e9a7ea59ffa80214657ef58c7dbe Mon Sep 17 00:00:00 2001
From: Zhao Yuhang <2546789017@qq.com>
Date: 周一, 27 5月 2024 23:18:42 +0800
Subject: [PATCH] Fix typo

---
 src/core/contexts/win32windowcontext.cpp |  167 +++++++++++++++++++++++++++++++++++++------------------
 1 files changed, 111 insertions(+), 56 deletions(-)

diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 661e0e8..3fa910e 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;
 
@@ -75,6 +81,8 @@
 
     static void setInternalWindowFrameMargins(QWindow *window, const QMargins &margins) {
         const QVariant marginsVar = QVariant::fromValue(margins);
+
+        // TODO: Add comments
         window->setProperty("_q_windowsCustomMargins", marginsVar);
 #if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
         if (QPlatformWindow *platformWindow = window->handle()) {
@@ -118,6 +126,36 @@
                        SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOZORDER | SWP_NOOWNERZORDER);
     }
 
+    static inline bool isFullScreen(HWND hwnd) {
+        RECT windowRect{};
+        ::GetWindowRect(hwnd, &windowRect);
+        // Compare to the full area of the screen, not the work area.
+        return (windowRect == getMonitorForWindow(hwnd).rcMonitor);
+    }
+
+    static inline bool isMaximized(HWND hwnd) {
+        return ::IsZoomed(hwnd);
+    }
+
+    static inline bool isMinimized(HWND hwnd) {
+        return ::IsIconic(hwnd);
+    }
+
+    static inline bool isWindowNoState(HWND hwnd) {
+#if 0
+        WINDOWPLACEMENT wp{};
+        wp.length = sizeof(wp);
+        ::GetWindowPlacement(hwnd, &wp);
+        return ((wp.showCmd == SW_NORMAL) || (wp.showCmd == SW_RESTORE));
+#else
+        if (isFullScreen(hwnd)) {
+            return false;
+        }
+        const auto style = static_cast<DWORD>(::GetWindowLongPtrW(hwnd, GWL_STYLE));
+        return (!(style & (WS_MINIMIZE | WS_MAXIMIZE)));
+#endif
+    }
+
     static inline void bringWindowToFront(HWND hwnd) {
         HWND oldForegroundWindow = ::GetForegroundWindow();
         if (!oldForegroundWindow) {
@@ -129,7 +167,7 @@
         if (!::IsWindowVisible(hwnd)) {
             ::ShowWindow(hwnd, SW_SHOW);
         }
-        if (IsMinimized(hwnd)) {
+        if (isMinimized(hwnd)) {
             // Restore the window if it is minimized.
             ::ShowWindow(hwnd, SW_RESTORE);
             // Once we've been restored, throw us on the active monitor.
@@ -164,28 +202,6 @@
         ::SetActiveWindow(hwnd);
         // Throw us on the active monitor.
         moveWindowToMonitor(hwnd, activeMonitor);
-    }
-
-    static inline bool isFullScreen(HWND hwnd) {
-        RECT windowRect{};
-        ::GetWindowRect(hwnd, &windowRect);
-        // Compare to the full area of the screen, not the work area.
-        return (windowRect == getMonitorForWindow(hwnd).rcMonitor);
-    }
-
-    static inline bool isWindowNoState(HWND hwnd) {
-#if 0
-        WINDOWPLACEMENT wp{};
-        wp.length = sizeof(wp);
-        ::GetWindowPlacement(hwnd, &wp);
-        return ((wp.showCmd == SW_NORMAL) || (wp.showCmd == SW_RESTORE));
-#else
-        if (isFullScreen(hwnd)) {
-            return false;
-        }
-        const auto style = static_cast<DWORD>(::GetWindowLongPtrW(hwnd, GWL_STYLE));
-        return (!(style & (WS_MINIMIZE | WS_MAXIMIZE)));
-#endif
     }
 
     static void syncPaintEventWithDwm() {
@@ -244,7 +260,7 @@
             return true;
         }
 
-        const bool maxOrFull = IsMaximized(hWnd) || isFullScreen(hWnd);
+        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)));
@@ -619,6 +635,7 @@
         // Try hooked procedure and save result
         LRESULT result;
         if (ctx->windowProc(hWnd, message, wParam, lParam, &result)) {
+            // https://github.com/stdware/qwindowkit/issues/45
             // Forward the event to user-defined native event filters, there may be some messages
             // that need to be processed by the user.
             std::ignore =
@@ -693,12 +710,12 @@
                 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
                 std::ignore = showSystemMenu_sys(hWnd, qpoint2point(nativeGlobalPos), false,
-                                                 m_delegate->isHostSizeFixed(m_host));
+                                                 isHostSizeFixed());
                 return;
             }
 
@@ -814,6 +831,12 @@
         if (key == QStringLiteral("border-thickness")) {
             return m_windowId
                        ? int(getWindowFrameBorderThickness(reinterpret_cast<HWND>(m_windowId)))
+                       : 0;
+        }
+
+        if (key == QStringLiteral("title-bar-height")) {
+            return m_windowId
+                       ? int(getTitleBarHeight(reinterpret_cast<HWND>(m_windowId)))
                        : 0;
         }
         return AbstractWindowContext::windowAttribute(key);
@@ -1257,7 +1280,7 @@
                     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
@@ -1376,18 +1399,25 @@
                     if (lastHitTestResultRaw == HTSYSMENU) {
                         switch (message) {
                             case WM_NCLBUTTONDOWN:
-                                if (iconButtonClickTime == 0) {
+                                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, WM_NCLBUTTONDOWN, wParam, lParam);
+                                    *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 {
-                                    *result = FALSE;
-                                    emulateClientAreaMessage(hWnd, message, wParam, lParam);
+                                    iconButtonClickLevel = 0;
                                 }
                                 break;
                             case WM_NCLBUTTONDBLCLK:
@@ -1550,10 +1580,10 @@
                 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 isFixedSize = isHostSizeFixed();
                 bool isTitleBar = isInTitleBarDraggableArea(qtScenePos);
                 bool dontOverrideCursor = false; // ### TODO
 
@@ -1632,7 +1662,7 @@
                 // OK, we are not inside any chrome buttons, try to find out which part of the
                 // window are we hitting.
 
-                bool max = IsMaximized(hWnd);
+                bool max = isMaximized(hWnd);
                 bool full = isFullScreen(hWnd);
                 int frameSize = getResizeBorderThickness(hWnd);
                 bool isTop = (nativeLocalPos.y < frameSize);
@@ -1928,9 +1958,9 @@
             // that's also how most applications customize their title bars on Windows. It's
             // totally OK but since we want to preserve as much original frame as possible,
             // we can't use that solution.
-            const LRESULT hitTestResult = ::DefWindowProcW(hWnd, WM_NCCALCSIZE, wParam, lParam);
-            if ((hitTestResult != HTERROR) && (hitTestResult != HTNOWHERE)) {
-                *result = hitTestResult;
+            const LRESULT originalResult = ::DefWindowProcW(hWnd, WM_NCCALCSIZE, wParam, lParam);
+            if (originalResult != 0) {
+                *result = originalResult;
                 return true;
             }
             // Re-apply the original top from before the size of the default frame was
@@ -1944,7 +1974,7 @@
             clientRect->top = originalTop;
         }
 
-        const bool max = IsMaximized(hWnd);
+        const bool max = isMaximized(hWnd);
         const bool full = isFullScreen(hWnd);
         // We don't need this correction when we're fullscreen. We will
         // have the WS_POPUP size, so we don't have to worry about
@@ -2059,7 +2089,7 @@
             return {GET_X_LPARAM(lParam), GET_Y_LPARAM(lParam)};
         };
         const auto getNativeGlobalPosFromKeyboard = [hWnd]() -> POINT {
-            const bool maxOrFull = IsMaximized(hWnd) || isFullScreen(hWnd);
+            const bool maxOrFull = isMaximized(hWnd) || isFullScreen(hWnd);
             const quint32 frameSize = getResizeBorderThickness(hWnd);
             const quint32 horizontalOffset =
                 ((maxOrFull || !isSystemBorderEnabled()) ? 0 : frameSize);
@@ -2091,9 +2121,12 @@
         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);
@@ -2143,7 +2176,10 @@
         if (shouldShowSystemMenu) {
             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()) {
@@ -2160,11 +2196,23 @@
                         WH_MOUSE,
                         [](int nCode, WPARAM wParam, LPARAM lParam) {
                             if (nCode >= 0) {
-                                if (wParam == WM_LBUTTONDOWN || wParam == WM_LBUTTONDBLCLK) {
-                                    auto pMouseStruct = reinterpret_cast<MOUSEHOOKSTRUCT *>(lParam);
-                                    if (pMouseStruct) {
-                                        mouseClickPos = pMouseStruct->pt;
+                                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);
@@ -2173,30 +2221,37 @@
                     mouseHookedLocal = true;
                 }
             }
-            bool res = showSystemMenu_sys(hWnd, nativeGlobalPos, broughtByKeyboard,
-                                          m_delegate->isHostSizeFixed(m_host));
+
+            bool res =
+                showSystemMenu_sys(hWnd, nativeGlobalPos, broughtByKeyboard, isHostSizeFixed());
 
             // Uninstall mouse hook and check if it's a double-click
             if (mouseHookedLocal) {
                 ::UnhookWindowsHookEx(mouseHook);
 
                 // Emulate the Windows icon button's behavior
-                static uint32_t doubleClickTime = ::GetDoubleClickTime();
-                if (!res && mouseClickPos.has_value() &&
-                    ::GetTickCount64() - iconButtonClickTime <= doubleClickTime) {
+                if (!res && mouseClickPos.has_value()) {
                     POINT nativeLocalPos = mouseClickPos.value();
                     ::ScreenToClient(hWnd, &nativeLocalPos);
                     QPoint qtScenePos = QHighDpi::fromNativeLocalPosition(
-                        point2qpoint(nativeLocalPos), m_windowHandle);
+                        point2qpoint(nativeLocalPos), m_windowHandle.data());
                     WindowAgentBase::SystemButton sysButtonType = WindowAgentBase::Unknown;
                     if (isInSystemButtons(qtScenePos, &sysButtonType) &&
                         sysButtonType == WindowAgentBase::WindowIcon) {
-                        ::PostMessageW(hWnd, WM_SYSCOMMAND, SC_CLOSE, 0);
+                        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

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