Add `window.level` config option

5 files changed, 39 insertions, 3 deletions

diff --git a/CHANGELOG.md b/CHANGELOG.md
index c9faa35c..e78e82ba 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -10,6 +10,10 @@ Notable changes to the `alacritty_terminal` crate are documented in its
 
 ## 0.15.0-dev
 
+### Added
+
+- Config option `window.level = "AlwaysOnTop"` to force Alacritty to always be the toplevel window
+
 ### Changed
 
 - Always focus new windows on macOS
diff --git a/alacritty/Cargo.toml b/alacritty/Cargo.toml
index f7f282c2..264ecbc6 100644
--- a/alacritty/Cargo.toml
+++ b/alacritty/Cargo.toml
@@ -41,7 +41,7 @@ tempfile = "3.12.0"
 toml = "0.8.2"
 toml_edit = "0.22.21"
 unicode-width = "0.1"
-winit = { version = "0.30.4", default-features = false, features = ["rwh_06", "serde"] }
+winit = { version = "0.30.5", default-features = false, features = ["rwh_06", "serde"] }
 
 [build-dependencies]
 gl_generator = "0.14.0"
diff --git a/alacritty/src/config/window.rs b/alacritty/src/config/window.rs
index 380f7a6f..358bb76d 100644
--- a/alacritty/src/config/window.rs
+++ b/alacritty/src/config/window.rs
@@ -6,7 +6,7 @@ use serde::{Deserialize, Deserializer, Serialize};
 
 #[cfg(target_os = "macos")]
 use winit::platform::macos::OptionAsAlt as WinitOptionAsAlt;
-use winit::window::{Fullscreen, Theme as WinitTheme};
+use winit::window::{Fullscreen, Theme as WinitTheme, WindowLevel as WinitWindowLevel};
 
 use alacritty_config_derive::{ConfigDeserialize, SerdeReplace};
 
@@ -61,6 +61,9 @@ pub struct WindowConfig {
 
     /// System decorations theme variant.
     decorations_theme_variant: Option<Theme>,
+
+    /// Window level.
+    pub level: WindowLevel,
 }
 
 impl Default for WindowConfig {
@@ -80,6 +83,7 @@ impl Default for WindowConfig {
             resize_increments: Default::default(),
             decorations_theme_variant: Default::default(),
             option_as_alt: Default::default(),
+            level: Default::default(),
         }
     }
 }
@@ -306,3 +310,19 @@ impl From<Theme> for WinitTheme {
         }
     }
 }
+
+#[derive(ConfigDeserialize, Default, Debug, Clone, Copy, PartialEq, Eq)]
+pub enum WindowLevel {
+    #[default]
+    Normal,
+    AlwaysOnTop,
+}
+
+impl From<WindowLevel> for WinitWindowLevel {
+    fn from(level: WindowLevel) -> Self {
+        match level {
+            WindowLevel::Normal => WinitWindowLevel::Normal,
+            WindowLevel::AlwaysOnTop => WinitWindowLevel::AlwaysOnTop,
+        }
+    }
+}
diff --git a/alacritty/src/display/window.rs b/alacritty/src/display/window.rs
index 3d6989a0..1f1e7402 100644
--- a/alacritty/src/display/window.rs
+++ b/alacritty/src/display/window.rs
@@ -169,7 +169,8 @@ impl Window {
             .with_transparent(true)
             .with_blur(config.window.blur)
             .with_maximized(config.window.maximized())
-            .with_fullscreen(config.window.fullscreen());
+            .with_fullscreen(config.window.fullscreen())
+            .with_window_level(config.window.level.into());
 
         let window = event_loop.create_window(window_attributes)?;
 
diff --git a/extra/man/alacritty.5.scd b/extra/man/alacritty.5.scd
index fa0edaaf..18172487 100644
--- a/extra/man/alacritty.5.scd
+++ b/extra/man/alacritty.5.scd
@@ -195,6 +195,17 @@ This section documents the *[window]* table of the configuration file.
 
 	Default: _"None"_
 
+*level* = _"Normal"_ | _"AlwaysOnTop"_
+
+	Sets window level.
+
+	*Normal*
+		Window adheres to system's default z-order.
+	*AlwaysOnTop*
+		Window is a toplevel window.
+
+	Default: _"Normal"_
+
 Example:
 	*[window]*++
 padding = { x = _3_, y = _3_ }++