Implement opacity window rule

2 files changed, 9 insertions, 1 deletions

diff --git a/src/layout/mod.rs b/src/layout/mod.rs
index bc5c8dcf..bbca41c9 100644
--- a/src/layout/mod.rs
+++ b/src/layout/mod.rs
@@ -95,6 +95,7 @@ pub trait LayoutElement {
         renderer: &mut R,
         location: Point<i32, Logical>,
         scale: Scale<f64>,
+        alpha: f32,
     ) -> Vec<LayoutElementRenderElement<R>>;
 
     fn request_size(&self, size: Size<i32, Logical>);
@@ -1856,6 +1857,7 @@ mod tests {
             _renderer: &mut R,
             _location: Point<i32, Logical>,
             _scale: Scale<f64>,
+            _alpha: f32,
         ) -> Vec<LayoutElementRenderElement<R>> {
             vec![]
         }
diff --git a/src/layout/tile.rs b/src/layout/tile.rs
index 0609583e..faa17840 100644
--- a/src/layout/tile.rs
+++ b/src/layout/tile.rs
@@ -325,9 +325,15 @@ impl<W: LayoutElement> Tile<W> {
         view_size: Size<i32, Logical>,
         focus_ring: bool,
     ) -> impl Iterator<Item = TileRenderElement<R>> {
+        let alpha = if self.is_fullscreen {
+            1.
+        } else {
+            self.window.rules().opacity.unwrap_or(1.).clamp(0., 1.)
+        };
+
         let rv = self
             .window
-            .render(renderer, location + self.window_loc(), scale)
+            .render(renderer, location + self.window_loc(), scale, alpha)
             .into_iter()
             .map(Into::into);