From f4523f3ab176f4a22738e4b11fb26fe500d0fd61 Mon Sep 17 00:00:00 2001
From: galister <22305755+galister@users.noreply.github.com>
Date: Sun, 2 Aug 2026 00:34:11 +0900
Subject: [PATCH] persistent passthrus

---
 wayvr/src/gui/panel/overlay_list.rs | 11 ++++---
 wayvr/src/overlays/passthrough.rs   |  4 ++-
 wayvr/src/windowing/manager.rs      | 47 +++++++++++++++++++++++++++++
 3 files changed, 57 insertions(+), 5 deletions(-)

diff --git a/wayvr/src/gui/panel/overlay_list.rs b/wayvr/src/gui/panel/overlay_list.rs
index 575d1b03..1c06f323 100644
--- a/wayvr/src/gui/panel/overlay_list.rs
+++ b/wayvr/src/gui/panel/overlay_list.rs
@@ -60,10 +60,13 @@ impl OverlayList {
                             ("Mirror", panels_root)
                         }
                         OverlayCategory::Passthru => {
-                            params.insert_rc(
-                                "display",
-                                (*meta.name).chars().last().unwrap().to_string().into(),
-                            );
+                            let display = meta
+                                .name
+                                .rsplit('-')
+                                .next()
+                                .unwrap_or(&meta.name)
+                                .to_string();
+                            params.insert_rc("display", display.into());
                             ("Passthru", panels_root)
                         }
                         OverlayCategory::Panel | OverlayCategory::BuiltInPanel => {
diff --git a/wayvr/src/overlays/passthrough.rs b/wayvr/src/overlays/passthrough.rs
index a166b5dd..ef6cd4fe 100644
--- a/wayvr/src/overlays/passthrough.rs
+++ b/wayvr/src/overlays/passthrough.rs
@@ -27,10 +27,12 @@ use crate::{
     },
 };
 
+pub const PASSTHRU_PREFIX: &str = "__wvr_passthru-";
+
 static PASSTHRU_COUNTER: AtomicUsize = AtomicUsize::new(1);
 
 pub fn new_passtrhu_name() -> Arc<str> {
-    format!("P-{}", PASSTHRU_COUNTER.fetch_add(1, Ordering::Relaxed)).into()
+    format!("{PASSTHRU_PREFIX}{}", PASSTHRU_COUNTER.fetch_add(1, Ordering::Relaxed)).into()
 }
 
 pub fn new_passthru(name: Arc<str>, app: &AppState) -> OverlayWindowConfig {
diff --git a/wayvr/src/windowing/manager.rs b/wayvr/src/windowing/manager.rs
index 5d9bd316..314fe2ca 100644
--- a/wayvr/src/windowing/manager.rs
+++ b/wayvr/src/windowing/manager.rs
@@ -159,6 +159,27 @@ where
         me.restore_layout(app);
         me.overlays_changed(app)?;
 
+        // recreate saved passthru overlays
+        let saved_passthrus: Vec<_> = app
+            .session
+            .config
+            .global_set
+            .iter()
+            .filter(|(name, _)| name.starts_with(crate::overlays::passthrough::PASSTHRU_PREFIX))
+            .map(|(name, state)| (name.clone(), state.clone()))
+            .collect();
+        for (name, saved_state) in saved_passthrus {
+            if me.lookup(&name).is_none() {
+                let config = crate::overlays::passthrough::new_passthru(name.clone(), app);
+                let id = me.add(OverlayWindowData::from_config(config), app);
+                if let Some(o) = me.mut_by_id(id) {
+                    o.config.active_state = Some(saved_state);
+                    o.config.reset(app, false);
+                    log::debug!("restored passthru {}", name);
+                }
+            }
+        }
+
         for id in [me.watch_id, me.keyboard_id] {
             for ev in [
                 OverlayEventData::NumSetsChanged(me.sets.len()),
@@ -376,11 +397,27 @@ where
                 self.spawn_overlay(app, sel, spawn_pos, f)?;
             }
             OverlayTask::Drop(sel) => {
+                let (id, name) = match &sel {
+                    OverlaySelector::Id(id) => {
+                        let id = *id;
+                        let name = self.overlays.get(id).map(|o| o.config.name.clone());
+                        (Some(id), name)
+                    }
+                    OverlaySelector::Name(name) => {
+                        let id = self.lookup(name);
+                        (id, Some(name.clone()))
+                    }
+                    _ => (None, None),
+                };
+
                 if let Some(o) = self.mut_by_selector(&sel)
                     && o.birthframe < FRAME_COUNTER.load(Ordering::Relaxed)
                     && let Some(o) = self.remove_by_selector(&sel, app)
                 {
                     log::debug!("Dropping overlay {}", o.config.name);
+                    if let (Some(id), Some(name)) = (id, name) {
+                        self.remove_saved_state(id, &name);
+                    }
                     self.dropped_overlays.push_back(o);
                 }
             }
@@ -455,6 +492,16 @@ impl<T> OverlayWindowManager<T> {
         self.dropped_overlays.pop_front()
     }
 
+    fn remove_saved_state(&mut self, id: OverlayID, name: &str) {
+        for set in &mut self.sets {
+            set.overlays.retain(|k, _| k != id);
+            set.inactive_overlays.arc_rm(name);
+            set.hidden_overlays.arc_rm(name);
+        }
+        self.global_set.inactive_overlays.arc_rm(name);
+        self.global_set.hidden_overlays.arc_rm(name);
+    }
+
     pub fn persist_layout(&mut self, app: &mut AppState) {
         app.session.config.global_set.clear();
         app.session.config.sets.clear();