From 0e9c2e428fb61953fd8f152125897646fe6fd337 Mon Sep 17 00:00:00 2001
From: Yuhang Zhao <zhaoyuhang@rankyee.com>
Date: ćšć, 21 12æ 2023 16:44:30 +0800
Subject: [PATCH] add mica mica alt acrylic
---
src/core/contexts/win32windowcontext.cpp | 288 ++++++++++++++++++++++++++++++++++++++++++++++++++++-----
1 files changed, 263 insertions(+), 25 deletions(-)
diff --git a/src/core/contexts/win32windowcontext.cpp b/src/core/contexts/win32windowcontext.cpp
index 230bf5d..76510ee 100644
--- a/src/core/contexts/win32windowcontext.cpp
+++ b/src/core/contexts/win32windowcontext.cpp
@@ -62,6 +62,82 @@
_DWMWA_MICA_EFFECT = 1029
};
+ // Types used with DWMWA_SYSTEMBACKDROP_TYPE
+ enum _DWM_SYSTEMBACKDROP_TYPE {
+ _DWMSBT_AUTO, // [Default] Let DWM automatically decide the system-drawn backdrop for this window.
+ _DWMSBT_NONE, // [Disable] Do not draw any system backdrop.
+ _DWMSBT_MAINWINDOW, // [Mica] Draw the backdrop material effect corresponding to a long-lived window.
+ _DWMSBT_TRANSIENTWINDOW, // [Acrylic] Draw the backdrop material effect corresponding to a transient window.
+ _DWMSBT_TABBEDWINDOW, // [Mica Alt] Draw the backdrop material effect corresponding to a window with a tabbed title bar.
+ };
+
+ enum WINDOWCOMPOSITIONATTRIB {
+ WCA_UNDEFINED = 0,
+ WCA_NCRENDERING_ENABLED = 1,
+ WCA_NCRENDERING_POLICY = 2,
+ WCA_TRANSITIONS_FORCEDISABLED = 3,
+ WCA_ALLOW_NCPAINT = 4,
+ WCA_CAPTION_BUTTON_BOUNDS = 5,
+ WCA_NONCLIENT_RTL_LAYOUT = 6,
+ WCA_FORCE_ICONIC_REPRESENTATION = 7,
+ WCA_EXTENDED_FRAME_BOUNDS = 8,
+ WCA_HAS_ICONIC_BITMAP = 9,
+ WCA_THEME_ATTRIBUTES = 10,
+ WCA_NCRENDERING_EXILED = 11,
+ WCA_NCADORNMENTINFO = 12,
+ WCA_EXCLUDED_FROM_LIVEPREVIEW = 13,
+ WCA_VIDEO_OVERLAY_ACTIVE = 14,
+ WCA_FORCE_ACTIVEWINDOW_APPEARANCE = 15,
+ WCA_DISALLOW_PEEK = 16,
+ WCA_CLOAK = 17,
+ WCA_CLOAKED = 18,
+ WCA_ACCENT_POLICY = 19,
+ WCA_FREEZE_REPRESENTATION = 20,
+ WCA_EVER_UNCLOAKED = 21,
+ WCA_VISUAL_OWNER = 22,
+ WCA_HOLOGRAPHIC = 23,
+ WCA_EXCLUDED_FROM_DDA = 24,
+ WCA_PASSIVEUPDATEMODE = 25,
+ WCA_USEDARKMODECOLORS = 26,
+ WCA_CORNER_STYLE = 27,
+ WCA_PART_COLOR = 28,
+ WCA_DISABLE_MOVESIZE_FEEDBACK = 29,
+ WCA_LAST = 30
+ };
+
+ enum ACCENT_STATE {
+ ACCENT_DISABLED = 0,
+ ACCENT_ENABLE_GRADIENT = 1,
+ ACCENT_ENABLE_TRANSPARENTGRADIENT = 2,
+ ACCENT_ENABLE_BLURBEHIND = 3, // Traditional DWM blur
+ ACCENT_ENABLE_ACRYLICBLURBEHIND = 4, // RS4 1803
+ ACCENT_ENABLE_HOST_BACKDROP = 5, // RS5 1809
+ ACCENT_INVALID_STATE = 6 // Using this value will remove the window background
+ };
+
+ enum ACCENT_FLAG {
+ ACCENT_NONE = 0,
+ ACCENT_ENABLE_ACRYLIC = 1,
+ ACCENT_ENABLE_ACRYLIC_WITH_LUMINOSITY = 482
+ };
+
+ struct ACCENT_POLICY {
+ DWORD dwAccentState;
+ DWORD dwAccentFlags;
+ DWORD dwGradientColor; // #AABBGGRR
+ DWORD dwAnimationId;
+ };
+ using PACCENT_POLICY = ACCENT_POLICY *;
+
+ struct WINDOWCOMPOSITIONATTRIBDATA {
+ WINDOWCOMPOSITIONATTRIB Attrib;
+ PVOID pvData;
+ SIZE_T cbData;
+ };
+ using PWINDOWCOMPOSITIONATTRIBDATA = WINDOWCOMPOSITIONATTRIBDATA *;
+
+ using SetWindowCompositionAttributePtr = BOOL(WINAPI *)(HWND, PWINDOWCOMPOSITIONATTRIBDATA);
+
// The thickness of an auto-hide taskbar in pixels.
static constexpr const quint8 kAutoHideTaskBarThickness = 2;
@@ -105,6 +181,7 @@
DYNAMIC_API_DECLARE(DwmGetCompositionTimingInfo);
DYNAMIC_API_DECLARE(DwmGetWindowAttribute);
DYNAMIC_API_DECLARE(DwmSetWindowAttribute);
+ DYNAMIC_API_DECLARE(DwmExtendFrameIntoClientArea);
DYNAMIC_API_DECLARE(GetDpiForWindow);
DYNAMIC_API_DECLARE(GetSystemMetricsForDpi);
DYNAMIC_API_DECLARE(GetDpiForMonitor);
@@ -114,6 +191,8 @@
#undef DYNAMIC_API_DECLARE
+ SetWindowCompositionAttributePtr pSetWindowCompositionAttribute = nullptr;
+
private:
DynamicApis() {
#define DYNAMIC_API_RESOLVE(DLL, NAME) \
@@ -122,6 +201,7 @@
QSystemLibrary user32(QStringLiteral("user32"));
DYNAMIC_API_RESOLVE(user32, GetDpiForWindow);
DYNAMIC_API_RESOLVE(user32, GetSystemMetricsForDpi);
+ DYNAMIC_API_RESOLVE(user32, SetWindowCompositionAttribute);
QSystemLibrary shcore(QStringLiteral("shcore"));
DYNAMIC_API_RESOLVE(shcore, GetDpiForMonitor);
@@ -132,6 +212,7 @@
DYNAMIC_API_RESOLVE(dwmapi, DwmGetCompositionTimingInfo);
DYNAMIC_API_RESOLVE(dwmapi, DwmGetWindowAttribute);
DYNAMIC_API_RESOLVE(dwmapi, DwmSetWindowAttribute);
+ DYNAMIC_API_RESOLVE(dwmapi, DwmExtendFrameIntoClientArea);
QSystemLibrary winmm(QStringLiteral("winmm"));
DYNAMIC_API_RESOLVE(winmm, timeGetDevCaps);
@@ -243,6 +324,11 @@
static inline bool isWin11OrGreater() {
static const bool result = IsWindows11OrGreater_Real();
+ return result;
+ }
+
+ static inline bool isWin1122H2OrGreater() {
+ static const bool result = IsWindows1122H2OrGreater_Real();
return result;
}
@@ -379,16 +465,7 @@
getSystemMetricsForDpi(SM_CXPADDEDBORDER, dpi);
}
- static void updateInternalWindowFrameMargins(HWND hwnd, QWindow *window) {
- const auto margins = [hwnd]() -> QMargins {
- const auto titleBarHeight = int(getTitleBarHeight(hwnd));
- if (isWin10OrGreater()) {
- return {0, -titleBarHeight, 0, 0};
- } else {
- const auto frameSize = int(getResizeBorderThickness(hwnd));
- return {-frameSize, -titleBarHeight, -frameSize, -frameSize};
- }
- }();
+ static void setInternalWindowFrameMargins(QWindow *window, const QMargins &margins) {
const QVariant marginsVar = QVariant::fromValue(margins);
window->setProperty("_q_windowsCustomMargins", marginsVar);
#if QT_VERSION < QT_VERSION_CHECK(6, 0, 0)
@@ -829,7 +906,20 @@
return ::CallWindowProcW(g_qtWindowProc, hWnd, message, wParam, lParam);
}
- static inline void addManagedWindow(HWND hWnd, Win32WindowContext *ctx) {
+ static inline void addManagedWindow(QWindow *window, HWND hWnd, Win32WindowContext *ctx) {
+ const auto margins = [hWnd]() -> QMargins {
+ const auto titleBarHeight = int(getTitleBarHeight(hWnd));
+ if (isWin10OrGreater()) {
+ 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);
+
// Store original window proc
if (!g_qtWindowProc) {
g_qtWindowProc = reinterpret_cast<WNDPROC>(::GetWindowLongPtrW(hWnd, GWLP_WNDPROC));
@@ -872,18 +962,24 @@
void Win32WindowContext::virtual_hook(int id, void *data) {
switch (id) {
case CentralizeHook: {
+ if (!windowId)
+ return;
const auto hwnd = reinterpret_cast<HWND>(windowId);
moveWindowToDesktopCenter(hwnd);
return;
}
case RaiseWindowHook: {
+ if (!windowId)
+ return;
const auto hwnd = reinterpret_cast<HWND>(windowId);
bringWindowToFront(hwnd);
return;
}
case ShowSystemMenuHook: {
+ if (!windowId)
+ return;
const auto &pos = *static_cast<const QPoint *>(data);
auto hWnd = reinterpret_cast<HWND>(windowId);
#if QT_VERSION >= QT_VERSION_CHECK(6, 0, 0)
@@ -902,16 +998,106 @@
const auto &key = *static_cast<const QString *>(args[0]);
const auto &newVar = *static_cast<const QVariant *>(args[1]);
const auto &oldVar = *static_cast<const QVariant *>(args[2]);
-
- if (key == QStringLiteral("no-frame-shadow")) {
+
+ if (!windowId)
+ return;
+ const auto hwnd = reinterpret_cast<HWND>(windowId);
+
+ const DynamicApis &apis = DynamicApis::instance();
+
+ if (key == QStringLiteral("frame-shadow")) {
if (newVar.toBool()) {
// TODO: set off
} else {
// TODO: set on
}
+ } else if (key == QStringLiteral("mica")) {
+ if (!isWin11OrGreater()) {
+ return;
+ }
+ if (newVar.toBool()) {
+ // We need to extend the window frame into the whole client area to be able
+ // to see the blurred window background.
+ static constexpr const MARGINS margins = {-1, -1, -1, -1};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ if (isWin1122H2OrGreater()) {
+ // Use official DWM API to enable Mica, available since Windows 11 22H2 (10.0.22621).
+ const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_MAINWINDOW;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
+ } else {
+ // Use undocumented DWM API to enable Mica, available since Windows 11 (10.0.22000).
+ const BOOL enable = TRUE;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_MICA_EFFECT, &enable, sizeof(enable));
+ }
+ } else {
+ if (isWin1122H2OrGreater()) {
+ const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_AUTO;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
+ } else {
+ const BOOL enable = FALSE;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_MICA_EFFECT, &enable, sizeof(enable));
+ }
+ static constexpr const MARGINS margins = {0, 0, 0, 0};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ }
+ } else if (key == QStringLiteral("mica-alt")) {
+ if (!isWin1122H2OrGreater()) {
+ return;
+ }
+ if (newVar.toBool()) {
+ // We need to extend the window frame into the whole client area to be able
+ // to see the blurred window background.
+ static constexpr const MARGINS margins = {-1, -1, -1, -1};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ // Use official DWM API to enable Mica Alt, available since Windows 11 22H2 (10.0.22621).
+ const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_TABBEDWINDOW;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
+ } else {
+ const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_AUTO;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
+ static constexpr const MARGINS margins = {0, 0, 0, 0};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ }
+ } else if (key == QStringLiteral("acrylic-material")) {
+ if (newVar.toBool()) {
+ // We need to extend the window frame into the whole client area to be able
+ // to see the blurred window background.
+ static constexpr const MARGINS margins = {-1, -1, -1, -1};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ if (isWin11OrGreater()) {
+ const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_TRANSIENTWINDOW;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
+ } else {
+ ACCENT_POLICY policy{};
+ policy.dwAccentState = ACCENT_ENABLE_ACRYLICBLURBEHIND;
+ policy.dwAccentFlags = ACCENT_ENABLE_ACRYLIC_WITH_LUMINOSITY;
+ // This API expects the #AABBGGRR format.
+ //policy.dwGradientColor = DWORD(qRgba(gradientColor.blue(), gradientColor.green(), gradientColor.red(), gradientColor.alpha()));
+ WINDOWCOMPOSITIONATTRIBDATA wcad{};
+ wcad.Attrib = WCA_ACCENT_POLICY;
+ wcad.pvData = &policy;
+ wcad.cbData = sizeof(policy);
+ apis.pSetWindowCompositionAttribute(hwnd, &wcad);
+ }
+ } else {
+ if (isWin11OrGreater()) {
+ const _DWM_SYSTEMBACKDROP_TYPE backdropType = _DWMSBT_AUTO;
+ apis.pDwmSetWindowAttribute(hwnd, _DWMWA_SYSTEMBACKDROP_TYPE, &backdropType, sizeof(backdropType));
+ } else {
+ ACCENT_POLICY policy{};
+ policy.dwAccentState = ACCENT_DISABLED;
+ policy.dwAccentFlags = ACCENT_NONE;
+ WINDOWCOMPOSITIONATTRIBDATA wcad{};
+ wcad.Attrib = WCA_ACCENT_POLICY;
+ wcad.pvData = &policy;
+ wcad.cbData = sizeof(policy);
+ apis.pSetWindowCompositionAttribute(hwnd, &wcad);
+ }
+ static constexpr const MARGINS margins = {0, 0, 0, 0};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ }
}
-
- break;
+ return;
}
case DefaultColorsHook: {
@@ -925,6 +1111,9 @@
}
case DrawWindows10BorderHook: {
+ if (!windowId)
+ return;
+
auto args = static_cast<void **>(data);
auto &painter = *static_cast<QPainter *>(args[0]);
const auto &rect = *static_cast<const QRect *>(args[1]);
@@ -964,10 +1153,8 @@
return;
}
- default: {
- // unreachable
+ default:
break;
- }
}
AbstractWindowContext::virtual_hook(id, data);
}
@@ -980,8 +1167,13 @@
return getWindowFrameBorderThickness(reinterpret_cast<HWND>(windowId));
}
- void Win32WindowContext::winIdChanged(QWindow *oldWindow) {
- removeManagedWindow(reinterpret_cast<HWND>(windowId));
+ void Win32WindowContext::winIdChanged() {
+ // If the original window id is valid, remove all resources related
+ if (windowId) {
+ removeManagedWindow(reinterpret_cast<HWND>(windowId));
+ windowId = 0;
+ }
+
if (!m_windowHandle) {
return;
}
@@ -1000,11 +1192,8 @@
}
#endif
- // Inform Qt we want and have set custom margins
- updateInternalWindowFrameMargins(hWnd, m_windowHandle);
-
// Add managed window
- addManagedWindow(hWnd, this);
+ addManagedWindow(m_windowHandle, hWnd, this);
// Cache win id
windowId = winId;
@@ -1268,6 +1457,53 @@
const WindowPart currentWindowPart = lastHitTestResult;
if (message == WM_NCMOUSEMOVE) {
if (currentWindowPart != 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
+ // widget. At this time, no other widgets will accept the mouse event until
+ // QWidgetWindow receives the mouse release event, then set `qt_button_down`
+ // to null.
+
+ // Imagine the following situation, now the main window has a pop-up menu,
+ // the focus is not on the main window, if we click outside the pop-up menu,
+ // the menu will close, which seems to be completely fine. But if we close
+ // the menu by clicking on the title bar draggable area, then other widgets
+ // won't accept the mouse message afterwards.
+
+ // Here's the reason.
+ // When the mouse is placed in the draggable area of the title bar, there
+ // are two situations.
+
+ // 1. If the focus is on the main window, and the last result of
+ // WM_NCHITTEST is HTCAPTION, the mouse click event in the title bar is
+ // taken over by Windows and Qt does not receive the mouse click event.
+
+ // 2. If the main window has a pop-up menu, it is completely different. When
+ // the mouse is pressed on the title bar, Windows sends the WM_LBUTTONDOWN
+ // message to the window plane of the pop-up menu, the menu is closed, but
+ // Qt will continue to forward the event to the QWidget under the mouse, and
+ // the event will be processed by QWidgetWindow, causing the title bar
+ // widget to be implicitly grabbed. After the menu is closed, Windows
+ // immediately sends WM_NCHITTEST, because the mouse is in the title bar
+ // draggable area, the result is HTCAPTION, so when the mouse is released,
+ // Windows sends WM_NCLBUTTONUP, which is a non-client message, and it
+ // will be ignored by Qt. As a consequence, QWidgetWindow can't receive a
+ // mouse release message in the client area, so the grab remains, and other
+ // widgets cannot receive mouse events.
+
+ // Since we didn't watch the menu window, we cannot capture any mouse
+ // press events sent by Windows, so we cannot solve this problem by
+ // recording mouse events. Fortunately, we found that the main window will
+ // receive a WM_NCMOUSEMOVE message immediately after the menu is closed, so
+ // we just manually send a mouse release event when this message arrives and
+ // set qt_button_down to null. Don't worry, when receiving WM_NCMOUSEMOVE,
+ // there shouldn't be any control in the state of being grabbed.
+
+ // In the native window, although QWidgetWindow handles the forwarded mouse
+ // press event when the menu is closed, since the native title bar is not a
+ // QWidget, no widget will be grabbed, and `qt_button_down` remains empty,
+ // the above problems would not arise.
+
m_delegate->resetQtGrabbedControl(m_host);
if (mouseLeaveBlocked) {
emulateClientAreaMessage(hWnd, message, wParam, lParam,
@@ -1330,6 +1566,8 @@
// 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.
+
+ // Why do we need to call this function here?
m_delegate->resetQtGrabbedControl(m_host);
}
}
@@ -1561,7 +1799,7 @@
*result = (isTitleBar ? HTCAPTION : HTCLIENT);
return true;
}
- // At this point, we know that the cursor is inside the client area
+ // At this point, we know that the cursor is inside the client area,
// so it has to be either the little border at the top of our custom
// title bar or the drag bar. Apparently, it must be the drag bar or
// the little border at the top which the user can use to move or
--
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