From 30b22ace0b67f72e2ab913fccf56842b863effad Mon Sep 17 00:00:00 2001
From: John Preston <johnprestonmail@gmail.com>
Date: Tue, 16 Jan 2024 21:11:05 +0400
Subject: [PATCH] Use new cloaking workaround for non-fullscreen only.

---
 ui/platform/win/ui_window_win.cpp | 16 ++++++++++------
 ui/platform/win/ui_window_win.h   |  1 +
 2 files changed, 11 insertions(+), 6 deletions(-)

diff --git a/ui/platform/win/ui_window_win.cpp b/ui/platform/win/ui_window_win.cpp
index 5f76de4..4ac4d77 100644
--- a/ui/platform/win/ui_window_win.cpp
+++ b/ui/platform/win/ui_window_win.cpp
@@ -367,6 +367,7 @@ void WindowHelper::showFullScreen() {
 		_isFullScreen = true;
 		updateMargins();
 		updateCornersRounding();
+		updateCloaking();
 	}
 	window()->showFullScreen();
 }
@@ -377,6 +378,7 @@ void WindowHelper::showNormal() {
 		_isFullScreen = false;
 		updateMargins();
 		updateCornersRounding();
+		updateCloaking();
 	}
 }
 
@@ -497,11 +499,7 @@ void WindowHelper::init() {
 	window()->shownValue() | rpl::filter([=](bool shown) {
 		return !shown;
 	}) | rpl::start_with_next([=] {
-		const auto toggleCloak = [=](bool enabled) {
-			const auto flag = BOOL(enabled ? TRUE : FALSE);
-			DwmSetWindowAttribute(_handle, DWMWA_CLOAK, &flag, sizeof(flag));
-		};
-		toggleCloak(true);
+		updateCloaking();
 
 		const auto qwindow = window()->windowHandle();
 		const auto firstPaintEventFilter = std::make_shared<QObject*>();
@@ -511,7 +509,7 @@ void WindowHelper::init() {
 				if (e->type() == QEvent::Expose && qwindow->isExposed()) {
 					InvokeQueued(qwindow, [=] {
 						InvokeQueued(qwindow, [=] {
-							toggleCloak(false);
+							updateCloaking();
 						});
 					});
 					delete base::take(*firstPaintEventFilter);
@@ -910,6 +908,12 @@ void WindowHelper::updateWindowFrameColors(bool active) {
 		sizeof(COLORREF));
 }
 
+void WindowHelper::updateCloaking() {
+	const auto enabled = window()->isHidden() && !_isFullScreen;
+	const auto flag = BOOL(enabled ? TRUE : FALSE);
+	DwmSetWindowAttribute(_handle, DWMWA_CLOAK, &flag, sizeof(flag));
+}
+
 void WindowHelper::updateMargins() {
 	if (_updatingMargins) return;
 
diff --git a/ui/platform/win/ui_window_win.h b/ui/platform/win/ui_window_win.h
index 58b723e..8b9fe15 100644
--- a/ui/platform/win/ui_window_win.h
+++ b/ui/platform/win/ui_window_win.h
@@ -52,6 +52,7 @@ private:
 
 	void init();
 	void updateMargins();
+	void updateCloaking();
 	void updateWindowFrameColors();
 	void updateWindowFrameColors(bool active);
 	void initialShadowUpdate();