Reimplement window closing anim in an efficient way

- Keep a root surface cache to be accessible in surface destroyed()
- Only snapshot during / right before closing, rather than every frame
- Store textures rather than elements to handle scale and alpha properly

1 files changed, 5 insertions, 0 deletions

diff --git a/src/niri.rs b/src/niri.rs
index 1eedcffa..f14f7dcd 100644
--- a/src/niri.rs
+++ b/src/niri.rs
@@ -151,6 +151,10 @@ pub struct Niri {
     // Windows which don't have a buffer attached yet.
     pub unmapped_windows: HashMap<WlSurface, Unmapped>,
 
+    // Cached root surface for every surface, so that we can access it in destroyed() where the
+    // normal get_parent() is cleared out.
+    pub root_surface: HashMap<WlSurface, WlSurface>,
+
     pub output_state: HashMap<Output, OutputState>,
     pub output_by_name: HashMap<String, Output>,
 
@@ -1318,6 +1322,7 @@ impl Niri {
             output_state: HashMap::new(),
             output_by_name: HashMap::new(),
             unmapped_windows: HashMap::new(),
+            root_surface: HashMap::new(),
             monitors_active: true,
 
             devices: HashSet::new(),