Close taskbar windows on clicking off them

src/ui.cpp

@@ -946,8 +946,8 @@ void Ui::catalog_draw(Play& play)
         style_pop();
 }
 
-// The open window (stats, catalog or settings): one at a time, fixed in size above the taskbar, closed by its X or
+// The open window (stats, catalog, settings or cheats): one at a time, fixed in size above the taskbar, closed by its
-// escape, and holding the mouse while open.
+// X, escape or a click off it, and holding the mouse while open.
 void Ui::window_draw(Play& play, Settings& settings, ImVec2 screen)
 {
     if (play.text.isScene)
@@ -973,7 +973,12 @@ void Ui::window_draw(Play& play, Settings& settings, ImVec2 screen)
             cheats_draw(play);
         else
             settings_draw(settings);
-        if (ImGui::IsKeyPressed(ImGuiKey_Escape))
+        ImVec2 min = ImGui::GetWindowPos();
+        ImVec2 max = {min.x + ImGui::GetWindowWidth(), min.y + ImGui::GetWindowHeight()};
+        bool isFocused = ImGui::IsWindowFocused(ImGuiFocusedFlags_ChildWindows | ImGuiFocusedFlags_NoPopupHierarchy);
+        bool isClickedOff =
+            isFocused && ImGui::IsMouseClicked(ImGuiMouseButton_Left) && !ImGui::IsMouseHoveringRect(min, max, false);
+        if (ImGui::IsKeyPressed(ImGuiKey_Escape) || isClickedOff)
         {
             isOpen = false;
             ImGui::CloseCurrentPopup();