feat(window-state): Add filter callback for excluding windows from tracking

plugins/window-state/src/lib.rs

@@ -27,6 +27,7 @@ use std::{
 mod cmd;
 
 type LabelMapperFn = dyn Fn(&str) -> &str + Send + Sync;
+type FilterCallbackFn = dyn Fn(&str) -> bool + Send + Sync;
 
 /// Default filename used to store window state.
 ///
@@ -322,7 +323,7 @@ impl<R: Runtime> WindowExtInternal for Window<R> {
 #[derive(Default)]
 pub struct Builder {
     denylist: HashSet<String>,
-    denylist_patterns: Vec<glob::Pattern>,
+    filter_callback: Option<Arc<Mutex<FilterCallbackFn>>>,
     skip_initial_state: HashSet<String>,
     state_flags: StateFlags,
     map_label: Option<Box<LabelMapperFn>>,
@@ -353,15 +354,14 @@ impl Builder {
         self
     }
 
-    /// Sets a list of windows that shouldn't be tracked and managed by this plugin using glob patterns
+    /// Sets a filter callback to exclude specific windows from being tracked.  
-    /// For example, you can denylist windows using wildcards.
+    /// Return `true` to save the state, or `false` to skip and not save it.
-    pub fn with_denylist_glob(mut self, denylist: &[&str]) -> Result<Self> {
+    pub fn with_filter<F>(mut self, filter_callback: F) -> Self
-        let mut denylist_patterns = Vec::new();
+    where
-        for pattern in denylist {
+        F: Fn(&str) -> bool + Send + Sync + 'static,
-            denylist_patterns.push(glob::Pattern::new(pattern)?);
+    {
-        }
+        self.filter_callback = Some(Arc::new(Mutex::new(filter_callback)));
-        self.denylist_patterns = denylist_patterns;
+        self
-        Ok(self)
     }
 
     /// Adds the given window label to a list of windows to skip initial state restore.
@@ -432,9 +432,11 @@ impl Builder {
                     return;
                 }
 
-                // Check deny list patterns
+                // Check deny list callback
-                for pattern in &self.denylist_patterns {
+                if let Some(filter_callback) = &self.filter_callback {
-                    if pattern.matches(label) {
+                    let filter_callback = filter_callback.lock().unwrap();
+                    // Don't save the state if the callback returns false
+                    if !filter_callback(label) {
                         return;
                     }
                 }