From 327055934009dc416be6234db8e4d26fab81fb80 Mon Sep 17 00:00:00 2001
From: SineStriker <55847490+SineStriker@users.noreply.github.com>
Date: ćšć, 21 12æ 2023 23:21:28 +0800
Subject: [PATCH] Merge pull request #8 from stdware/stylesupport
---
src/stylesupport/styleagent_win.cpp | 242 ++++++++++++++++++++++++++++++++++++++++++++++++
1 files changed, 242 insertions(+), 0 deletions(-)
diff --git a/src/stylesupport/styleagent_win.cpp b/src/stylesupport/styleagent_win.cpp
new file mode 100644
index 0000000..67b6532
--- /dev/null
+++ b/src/stylesupport/styleagent_win.cpp
@@ -0,0 +1,242 @@
+#include "styleagent_p.h"
+
+#include <QtCore/QSet>
+#include <QtCore/QVariant>
+#include <QtGui/QColor>
+
+#include <QWKCore/private/qwkwindowsextra_p.h>
+#include <QWKCore/private/nativeeventfilter_p.h>
+
+namespace QWK {
+
+ using StyleAgentSet = QSet<StyleAgentPrivate *>;
+ Q_GLOBAL_STATIC(StyleAgentSet, g_styleAgentSet)
+
+ class SystemSettingEventFilter : public AppNativeEventFilter {
+ public:
+ bool nativeEventFilter(const QByteArray &eventType, void *message,
+ QT_NATIVE_EVENT_RESULT_TYPE *result) override {
+ Q_UNUSED(eventType)
+ if (!result) {
+ return false;
+ }
+
+ const auto msg = static_cast<const MSG *>(message);
+ switch (msg->message) {
+ case WM_THEMECHANGED:
+ case WM_SYSCOLORCHANGE:
+ case WM_DWMCOLORIZATIONCOLORCHANGED: {
+ // TODO: walk through `g_styleAgentSet`
+ break;
+ }
+
+ case WM_SETTINGCHANGE: {
+ if (!msg->wParam && msg->lParam &&
+ std::wcscmp(reinterpret_cast<LPCWSTR>(msg->lParam), L"ImmersiveColorSet") ==
+ 0) {
+ // TODO: walk through `g_styleAgentSet`
+ }
+ break;
+ }
+
+ default:
+ break;
+ }
+ return false;
+ }
+
+ static SystemSettingEventFilter *instance;
+
+ static inline void install() {
+ if (instance) {
+ return;
+ }
+ instance = new SystemSettingEventFilter();
+ }
+
+ static inline void uninstall() {
+ if (!instance) {
+ return;
+ }
+ delete instance;
+ instance = nullptr;
+ }
+ };
+
+ SystemSettingEventFilter *SystemSettingEventFilter::instance = nullptr;
+
+ void StyleAgentPrivate::setupSystemThemeHook() {
+ g_styleAgentSet->insert(this);
+ SystemSettingEventFilter::install();
+
+ // Initialize `systemTheme` variable
+ }
+
+ void StyleAgentPrivate::removeSystemThemeHook() {
+ if (!g_styleAgentSet->remove(this))
+ return;
+
+ if (g_styleAgentSet->isEmpty()) {
+ SystemSettingEventFilter::uninstall();
+ }
+ }
+
+ bool StyleAgentPrivate::updateWindowAttribute(QWindow *window, const QString &key,
+ const QVariant &attribute,
+ const QVariant &oldAttribute) {
+ Q_UNUSED(oldAttribute)
+
+ const auto hwnd = reinterpret_cast<HWND>(window->winId());
+ const DynamicApis &apis = DynamicApis::instance();
+
+ if (key == QStringLiteral("mica")) {
+ if (!isWin11OrGreater()) {
+ return false;
+ }
+ if (attribute.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);
+ }
+ return true;
+ } else if (key == QStringLiteral("mica-alt")) {
+ if (!isWin1122H2OrGreater()) {
+ return false;
+ }
+ if (attribute.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);
+ }
+ return true;
+ } else if (key == QStringLiteral("acrylic-material")) {
+ if (!isWin10OrGreater()) {
+ return false;
+ }
+ if (attribute.userType() == QMetaType::QColor) {
+ // 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 {
+ auto gradientColor = attribute.value<QColor>();
+
+ 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);
+ }
+ return true;
+ } else if (key == QStringLiteral("dwm-blur")) {
+ if (attribute.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 (isWin8OrGreater()) {
+ ACCENT_POLICY policy{};
+ policy.dwAccentState = ACCENT_ENABLE_BLURBEHIND;
+ policy.dwAccentFlags = ACCENT_NONE;
+ WINDOWCOMPOSITIONATTRIBDATA wcad{};
+ wcad.Attrib = WCA_ACCENT_POLICY;
+ wcad.pvData = &policy;
+ wcad.cbData = sizeof(policy);
+ apis.pSetWindowCompositionAttribute(hwnd, &wcad);
+ } else {
+ DWM_BLURBEHIND bb{};
+ bb.fEnable = TRUE;
+ bb.fTransitionOnMaximized = TRUE;
+ bb.dwFlags = DWM_BB_ENABLE | DWM_BB_TRANSITIONONMAXIMIZED;
+ apis.pDwmEnableBlurBehindWindow(hwnd, &bb);
+ }
+ } else {
+ if (isWin8OrGreater()) {
+ 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);
+ } else {
+ DWM_BLURBEHIND bb{};
+ bb.fEnable = FALSE;
+ bb.dwFlags = DWM_BB_ENABLE;
+ apis.pDwmEnableBlurBehindWindow(hwnd, &bb);
+ }
+ static constexpr const MARGINS margins = {0, 0, 0, 0};
+ apis.pDwmExtendFrameIntoClientArea(hwnd, &margins);
+ }
+ return true;
+ }
+ return false;
+ }
+
+}
\ No newline at end of file
--
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