feat(applets): add destroy tooltip popup action

This commit adds a new surface action to explicitly destroy the tooltip
popup on `TOOLTIP_WINDOW_ID`, allowing proper cleanup when minimizing
applets.

src/app/cosmic.rs

@@ -230,6 +230,17 @@ where
                 iced_winit::commands::popup::destroy_popup(id)
             }
             #[cfg(all(feature = "wayland", target_os = "linux"))]
+            crate::surface::Action::DestroyTooltipPopup => {
+                #[cfg(feature = "applet")]
+                {
+                    iced_winit::commands::popup::destroy_popup(*crate::applet::TOOLTIP_WINDOW_ID)
+                }
+                #[cfg(not(feature = "applet"))]
+                {
+                    Task::none()
+                }
+            }
+            #[cfg(all(feature = "wayland", target_os = "linux"))]
             crate::surface::Action::DestroySubsurface(id) => {
                 iced_winit::commands::subsurface::destroy_subsurface(id)
             }

src/applet/mod.rs

@@ -42,7 +42,7 @@ static AUTOSIZE_ID: LazyLock<iced::id::Id> =
 static AUTOSIZE_MAIN_ID: LazyLock<iced::id::Id> =
     LazyLock::new(|| iced::id::Id::new("cosmic-applet-autosize-main"));
 static TOOLTIP_ID: LazyLock<crate::widget::Id> = LazyLock::new(|| iced::id::Id::new("subsurface"));
-static TOOLTIP_WINDOW_ID: LazyLock<window::Id> = LazyLock::new(window::Id::unique);
+pub(crate) static TOOLTIP_WINDOW_ID: LazyLock<window::Id> = LazyLock::new(window::Id::unique);
 
 #[derive(Debug, Clone)]
 pub struct Context {

src/surface/mod.rs

@@ -36,6 +36,8 @@ pub enum Action {
     ),
     /// Destroy a subsurface with a view function
     DestroyPopup(iced::window::Id),
+    /// Destroys the global tooltip popup subsurface
+    DestroyTooltipPopup,
 
     /// Create a window with a view function accepting the App as a parameter
     AppWindow(
@@ -85,6 +87,7 @@ impl std::fmt::Debug for Action {
             }
             Self::Popup(arg0, arg1) => f.debug_tuple("Popup").field(arg0).field(arg1).finish(),
             Self::DestroyPopup(arg0) => f.debug_tuple("DestroyPopup").field(arg0).finish(),
+            Self::DestroyTooltipPopup => f.debug_tuple("DestroyTooltipPopup").finish(),
             Self::ResponsiveMenuBar {
                 menu_bar,
                 limits,