From 1b2f5fabfab2d955aca31f126eb84593a2029a85 Mon Sep 17 00:00:00 2001
From: Paddy Xu <xupaddy@gmail.com>
Date: Sun, 15 Oct 2017 18:04:22 +0300
Subject: [PATCH] Fix #101: Do not preview when Listary toolbar is visible

---
 .../QuickLook.Native32/HelperMethods.cpp      | 30 +++++++++++++++++--
 .../QuickLook.Native32/HelperMethods.h        |  3 ++
 2 files changed, 31 insertions(+), 2 deletions(-)

diff --git a/QuickLook.Native/QuickLook.Native32/HelperMethods.cpp b/QuickLook.Native/QuickLook.Native32/HelperMethods.cpp
index 2c35b27..f299ac6 100644
--- a/QuickLook.Native/QuickLook.Native32/HelperMethods.cpp
+++ b/QuickLook.Native/QuickLook.Native32/HelperMethods.cpp
@@ -63,18 +63,44 @@ void HelperMethods::ObtainFirstItem(CComPtr<IDataObject> dao, PWCHAR buffer)
 	DragQueryFile(HDROP(medium.hGlobal), 0, buffer, MAX_PATH - 1);
 }
 
+bool HelperMethods::IsListaryToolbarVisible()
+{
+	auto CALLBACK findListaryWindowProc = [](__in HWND hwnd, __in LPARAM lParam)-> BOOL
+	{
+		WCHAR classBuffer[MAX_PATH] = {'\0'};
+		if (FAILED(GetClassName(hwnd, classBuffer, MAX_PATH)))
+			return TRUE;
+
+		if (wcsncmp(classBuffer, L"Listary_WidgetWin_", 18) == 0)
+		{
+			if (IsWindowVisible(hwnd))
+			{
+				*reinterpret_cast<bool*>(lParam) = true;
+				return FALSE;
+			}
+		}
+		return TRUE;
+	};
+
+	auto found = false;
+	EnumWindows(findListaryWindowProc, reinterpret_cast<LPARAM>(&found));
+
+	return found;
+}
+
 bool HelperMethods::IsCursorActivated(HWND hwnd)
 {
 	auto tId = GetWindowThreadProcessId(hwnd, nullptr);
 
 	GUITHREADINFO gui = {sizeof gui};
 	GetGUIThreadInfo(tId, &gui);
-	return gui.flags || gui.hwndCaret;
+	return gui.flags || gui.hwndCaret || IsListaryToolbarVisible();
 }
 
 bool HelperMethods::IsUWP()
 {
-	auto pGCPFN = decltype(&GetCurrentPackageFullName)(GetProcAddress(GetModuleHandle(L"kernel32.dll"), "GetCurrentPackageFullName"));
+	auto pGCPFN = decltype(&GetCurrentPackageFullName)(
+		GetProcAddress(GetModuleHandle(L"kernel32.dll"), "GetCurrentPackageFullName"));
 
 	if (!pGCPFN)
 		return false;
diff --git a/QuickLook.Native/QuickLook.Native32/HelperMethods.h b/QuickLook.Native/QuickLook.Native32/HelperMethods.h
index 73c1eac..351c50c 100644
--- a/QuickLook.Native/QuickLook.Native32/HelperMethods.h
+++ b/QuickLook.Native/QuickLook.Native32/HelperMethods.h
@@ -23,4 +23,7 @@ public:
 	static void ObtainFirstItem(CComPtr<IDataObject> dao, PWCHAR buffer);
 	static bool IsCursorActivated(HWND hwndfg);
 	static bool HelperMethods::IsUWP();
+
+private:
+	static bool IsListaryToolbarVisible();
 };