feat(stackbar): make label configurable

This commit introduces a new stackbar label configuration option backed
by the StackbarLabel enum, which now has two variants, Process and
Title.

The state tracker for this option is kept in an AtomicCell, and the
state tracker for StackbarMode has also been changed from an
Arc<Mutex<T>> to an AtomicCell to match.

resolve #826

komorebi/src/lib.rs

@@ -51,6 +51,7 @@ pub use windows_api::WindowsApi;
 pub use windows_api::*;
 
 use color_eyre::Result;
+use crossbeam_utils::atomic::AtomicCell;
 use komorebi_core::config_generation::IdWithIdentifier;
 use komorebi_core::config_generation::MatchingRule;
 use komorebi_core::config_generation::MatchingStrategy;
@@ -58,6 +59,7 @@ use komorebi_core::ApplicationIdentifier;
 use komorebi_core::HidingBehaviour;
 use komorebi_core::Rect;
 use komorebi_core::SocketMessage;
+use komorebi_core::StackbarLabel;
 use komorebi_core::StackbarMode;
 use os_info::Version;
 use parking_lot::Mutex;
@@ -201,7 +203,6 @@ lazy_static! {
     // eg. Windows Terminal, IntelliJ IDEA, Firefox
     static ref NO_TITLEBAR: Arc<Mutex<Vec<String>>> = Arc::new(Mutex::new(vec![]));
 
-    static ref STACKBAR_MODE: Arc<Mutex<StackbarMode >> = Arc::new(Mutex::new(StackbarMode::Never));
     static ref WINDOWS_BY_BAR_HWNDS: Arc<Mutex<HashMap<isize, VecDeque<isize>>>> =
         Arc::new(Mutex::new(HashMap::new()));
 
@@ -223,6 +224,8 @@ pub static STACKBAR_UNFOCUSED_TEXT_COLOUR: AtomicU32 = AtomicU32::new(11776947);
 pub static STACKBAR_TAB_BACKGROUND_COLOUR: AtomicU32 = AtomicU32::new(3355443); // gray
 pub static STACKBAR_TAB_HEIGHT: AtomicI32 = AtomicI32::new(40);
 pub static STACKBAR_TAB_WIDTH: AtomicI32 = AtomicI32::new(200);
+pub static STACKBAR_LABEL: AtomicCell<StackbarLabel> = AtomicCell::new(StackbarLabel::Process);
+pub static STACKBAR_MODE: AtomicCell<StackbarMode> = AtomicCell::new(StackbarMode::Never);
 
 #[must_use]
 pub fn current_virtual_desktop() -> Option<Vec<u8>> {