From 87b7caada401149efda7bfee5289babdbcd5165f Mon Sep 17 00:00:00 2001
From: Sine Striker <trueful@163.com>
Date: 周二, 30 4月 2024 14:01:16 +0800
Subject: [PATCH] Update version

---
 src/core/contexts/win32windowcontext.cpp |  190 +++++++++++++++++++++++++++++++++++++++--------
 1 files changed, 157 insertions(+), 33 deletions(-)

diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index a10b3e0..811fd44 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -6,13 +6,16 @@
 
 #include <optional>
 
+#include <QtCore/QAbstractEventDispatcher>
+#include <QtCore/QDateTime>
 #include <QtCore/QHash>
 #include <QtCore/QScopeGuard>
 #include <QtCore/QTimer>
-#include <QtCore/QDateTime>
 #include <QtGui/QGuiApplication>
 #include <QtGui/QPainter>
 #include <QtGui/QPalette>
+
+#include <QtGui/qpa/qwindowsysteminterface.h>
 
 #include <QtGui/private/qhighdpiscaling_p.h>
 #if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -153,7 +156,7 @@
         [[maybe_unused]] const auto &cleaner =
             qScopeGuard([windowThreadProcessId, currentThreadId]() {
                 ::AttachThreadInput(windowThreadProcessId, currentThreadId, FALSE); //
-            });
+            }); // TODO: Remove it
 
         ::BringWindowToTop(hwnd);
         // Activate the window too. This will force us to the virtual desktop this
@@ -359,6 +362,107 @@
         return true;
     }
 
+    static inline constexpr bool isNonClientMessage(const UINT message) {
+        if (((message >= WM_NCCREATE) && (message <= WM_NCACTIVATE)) ||
+            ((message >= WM_NCMOUSEMOVE) && (message <= WM_NCMBUTTONDBLCLK)) ||
+            ((message >= WM_NCXBUTTONDOWN) && (message <= WM_NCXBUTTONDBLCLK))
+#if (WINVER >= _WIN32_WINNT_WIN8)
+            || ((message >= WM_NCPOINTERUPDATE) && (message <= WM_NCPOINTERUP))
+#endif
+            || ((message == WM_NCMOUSEHOVER) || (message == WM_NCMOUSELEAVE))) {
+            return true;
+        } else {
+            return false;
+        }
+    }
+
+    static MSG createMessageBlock(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam) {
+        MSG msg;
+        msg.hwnd = hWnd;       // re-create MSG structure
+        msg.message = message; // time and pt fields ignored
+        msg.wParam = wParam;
+        msg.lParam = lParam;
+
+        const DWORD dwScreenPos = ::GetMessagePos();
+        msg.pt.x = GET_X_LPARAM(dwScreenPos);
+        msg.pt.y = GET_Y_LPARAM(dwScreenPos);
+        if (!isNonClientMessage(message)) {
+            ::ScreenToClient(hWnd, &msg.pt);
+        }
+        return msg;
+    }
+
+    static inline constexpr bool isInputMessage(UINT m) {
+        switch (m) {
+            case WM_IME_STARTCOMPOSITION:
+            case WM_IME_ENDCOMPOSITION:
+            case WM_IME_COMPOSITION:
+            case WM_INPUT:
+            case WM_TOUCH:
+            case WM_MOUSEHOVER:
+            case WM_MOUSELEAVE:
+            case WM_NCMOUSEHOVER:
+            case WM_NCMOUSELEAVE:
+            case WM_SIZING:
+            case WM_MOVING:
+            case WM_SYSCOMMAND:
+            case WM_COMMAND:
+            case WM_DWMNCRENDERINGCHANGED:
+            case WM_PAINT:
+                return true;
+            default:
+                break;
+        }
+        return (m >= WM_MOUSEFIRST && m <= WM_MOUSELAST) ||
+               (m >= WM_NCMOUSEMOVE && m <= WM_NCXBUTTONDBLCLK) ||
+               (m >= WM_KEYFIRST && m <= WM_KEYLAST);
+    }
+
+    static inline QByteArray nativeEventType() {
+        return QByteArrayLiteral("windows_generic_MSG");
+    }
+
+    // Send to QAbstractEventDispatcher
+    bool filterNativeEvent(MSG *msg, LRESULT *result) {
+        auto dispatcher = QAbstractEventDispatcher::instance();
+        QT_NATIVE_EVENT_RESULT_TYPE filterResult = *result;
+        if (dispatcher && dispatcher->filterNativeEvent(nativeEventType(), msg, &filterResult)) {
+            *result = LRESULT(filterResult);
+            return true;
+        }
+        return false;
+    }
+
+    // Send to QWindowSystemInterface
+    bool filterNativeEvent(QWindow *window, MSG *msg, LRESULT *result) {
+        QT_NATIVE_EVENT_RESULT_TYPE filterResult = *result;
+        if (QWindowSystemInterface::handleNativeEvent(window, nativeEventType(), msg,
+                                                      &filterResult)) {
+            *result = LRESULT(filterResult);
+            return true;
+        }
+        return false;
+    }
+
+    static inline bool forwardFilteredEvent(QWindow *window, HWND hWnd, UINT message, WPARAM wParam,
+                                            LPARAM lParam, LRESULT *result) {
+        MSG msg = createMessageBlock(hWnd, message, wParam, lParam);
+
+        // https://github.com/qt/qtbase/blob/e26a87f1ecc40bc8c6aa5b889fce67410a57a702/src/plugins/platforms/windows/qwindowscontext.cpp#L1025
+        // Do exact the same as what Qt Windows plugin does.
+
+        // Run the native event filters. QTBUG-67095: Exclude input messages which are sent
+        // by QEventDispatcherWin32::processEvents()
+        if (!isInputMessage(msg.message) && filterNativeEvent(&msg, result))
+            return true;
+
+        auto platformWindow = window->handle();
+        if (platformWindow && filterNativeEvent(platformWindow->window(), &msg, result))
+            return true;
+
+        return false;
+    }
+
     // https://github.com/qt/qtbase/blob/e26a87f1ecc40bc8c6aa5b889fce67410a57a702/src/plugins/platforms/windows/qwindowscontext.cpp#L1556
     // In QWindowsContext::windowsProc(), the messages will be passed to all global native event
     // filters, but because we have already filtered the messages in the hook WndProc function for
@@ -378,17 +482,38 @@
                 return false;
             }
 
-            // 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 acquires the initial data.
             auto msg = static_cast<const MSG *>(message);
-            if (msg->message == WM_NCCALCSIZE && lastMessageContext) {
-                LRESULT res;
-                if (lastMessageContext->nonClientCalcSizeHandler(msg->hwnd, msg->message,
-                                                                 msg->wParam, msg->lParam, &res)) {
-                    *result = decltype(*result)(res);
-                    return true;
+            switch (msg->message) {
+                case WM_NCCALCSIZE: {
+                    // 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 acquires the initial data.
+                    if (lastMessageContext) {
+                        LRESULT res;
+                        if (lastMessageContext->nonClientCalcSizeHandler(
+                                msg->hwnd, msg->message, msg->wParam, msg->lParam, &res)) {
+                            *result = decltype(*result)(res);
+                            return true;
+                        }
+                    }
+                    break;
                 }
+
+                    // case WM_NCHITTEST: {
+                    //     // The child window must return HTTRANSPARENT when processing
+                    //     WM_NCHITTEST for
+                    //     // the parent window to receive WM_NCHITTEST.
+                    //     if (!lastMessageContext) {
+                    //         auto rootHWnd = ::GetAncestor(msg->hwnd, GA_ROOT);
+                    //         if (rootHWnd != msg->hwnd) {
+                    //             if (auto ctx = g_wndProcHash->value(rootHWnd)) {
+                    //                 *result = HTTRANSPARENT;
+                    //                 return true;
+                    //             }
+                    //         }
+                    //     }
+                    //     break;
+                    // }
             }
             return false;
         }
@@ -477,18 +602,24 @@
             return ::DefWindowProcW(hWnd, message, wParam, lParam);
         }
 
+        WindowsNativeEventFilter::lastMessageContext = ctx;
+        const auto &contextCleaner = qScopeGuard([]() {
+            WindowsNativeEventFilter::lastMessageContext = nullptr; //
+        });
+
         // Since Qt does the necessary processing of the WM_NCCALCSIZE message, we need to
         // forward it right away and process it in our native event filter.
         if (message == WM_NCCALCSIZE) {
-            WindowsNativeEventFilter::lastMessageContext = ctx;
-            LRESULT result = ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
-            WindowsNativeEventFilter::lastMessageContext = nullptr;
-            return result;
+            return ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
         }
 
         // Try hooked procedure and save result
         LRESULT result;
         if (ctx->windowProc(hWnd, message, wParam, lParam, &result)) {
+            // Forward the event to user-defined native event filters, there may be some messages
+            // that need to be processed by the user.
+            std::ignore =
+                forwardFilteredEvent(ctx->window(), hWnd, message, wParam, lParam, &result);
             return result;
         }
 
@@ -497,18 +628,10 @@
     }
 
     static inline void addManagedWindow(QWindow *window, HWND hWnd, Win32WindowContext *ctx) {
-        const auto margins = [hWnd]() -> QMargins {
-            const auto titleBarHeight = int(getTitleBarHeight(hWnd));
-            if (isSystemBorderEnabled()) {
-                return {0, -titleBarHeight, 0, 0};
-            } else {
-                const auto frameSize = int(getResizeBorderThickness(hWnd));
-                return {-frameSize, -titleBarHeight, -frameSize, -frameSize};
-            }
-        }();
-
-        // Inform Qt we want and have set custom margins
-        setInternalWindowFrameMargins(window, margins);
+        if (isSystemBorderEnabled()) {
+            // Inform Qt we want and have set custom margins
+            setInternalWindowFrameMargins(window, QMargins(0, -int(getTitleBarHeight(hWnd)), 0, 0));
+        }
 
         // Store original window proc
         if (!g_qtWindowProc) {
@@ -699,6 +822,11 @@
         mouseLeaveBlocked = false;
         lastHitTestResult = WindowPart::Outside;
 
+        if (!isSystemBorderEnabled()) {
+            m_delegate->setWindowFlags(m_host, m_delegate->getWindowFlags(m_host) |
+                                                   Qt::FramelessWindowHint);
+        }
+
         // If the original window id is valid, remove all resources related
         if (oldWinId) {
             removeManagedWindow(reinterpret_cast<HWND>(oldWinId));
@@ -774,13 +902,9 @@
 
         // Forward to native event filter subscribers
         if (!m_nativeEventFilters.isEmpty()) {
-            MSG msg;
-            msg.hwnd = hWnd;
-            msg.message = message;
-            msg.wParam = wParam;
-            msg.lParam = lParam;
+            MSG msg = createMessageBlock(hWnd, message, wParam, lParam);
             QT_NATIVE_EVENT_RESULT_TYPE res = 0;
-            if (nativeDispatch(QByteArrayLiteral("windows_generic_MSG"), &msg, &res)) {
+            if (nativeDispatch(nativeEventType(), &msg, &res)) {
                 *result = LRESULT(res);
                 return true;
             }

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