1 files changed, 64 insertions, 0 deletions
diff --git a/alacritty_terminal/src/config/visual_bell.rs b/alacritty_terminal/src/config/visual_bell.rs
new file mode 100644
index 00000000..3a31b24a
--- /dev/null
+++ b/alacritty_terminal/src/config/visual_bell.rs
@@ -0,0 +1,64 @@
+use std::time::Duration;
+
+use crate::config::failure_default;
+use crate::term::color::Rgb;
+
+#[serde(default)]
+#[derive(Debug, Deserialize, PartialEq, Eq)]
+pub struct VisualBellConfig {
+    /// Visual bell animation function
+    #[serde(deserialize_with = "failure_default")]
+    pub animation: VisualBellAnimation,
+
+    /// Visual bell duration in milliseconds
+    #[serde(deserialize_with = "failure_default")]
+    pub duration: u16,
+
+    /// Visual bell flash color
+    #[serde(deserialize_with = "failure_default")]
+    pub color: Rgb,
+}
+
+impl Default for VisualBellConfig {
+    fn default() -> VisualBellConfig {
+        VisualBellConfig {
+            animation: Default::default(),
+            duration: Default::default(),
+            color: default_visual_bell_color(),
+        }
+    }
+}
+
+impl VisualBellConfig {
+    /// Visual bell duration in milliseconds
+    #[inline]
+    pub fn duration(&self) -> Duration {
+        Duration::from_millis(u64::from(self.duration))
+    }
+}
+
+/// `VisualBellAnimations` are modeled after a subset of CSS transitions and Robert
+/// Penner's Easing Functions.
+#[derive(Clone, Copy, Debug, Deserialize, PartialEq, Eq)]
+pub enum VisualBellAnimation {
+    Ease,         // CSS
+    EaseOut,      // CSS
+    EaseOutSine,  // Penner
+    EaseOutQuad,  // Penner
+    EaseOutCubic, // Penner
+    EaseOutQuart, // Penner
+    EaseOutQuint, // Penner
+    EaseOutExpo,  // Penner
+    EaseOutCirc,  // Penner
+    Linear,
+}
+
+impl Default for VisualBellAnimation {
+    fn default() -> Self {
+        VisualBellAnimation::EaseOutExpo
+    }
+}
+
+fn default_visual_bell_color() -> Rgb {
+    Rgb { r: 255, g: 255, b: 255 }
+}