1 files changed, 44 insertions, 0 deletions
diff --git a/servo/components/style/values/computed/effects.rs b/servo/components/style/values/computed/effects.rs
new file mode 100644
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+++ b/servo/components/style/values/computed/effects.rs
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+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+//! Computed types for CSS values related to effects.
+
+use crate::values::computed::color::Color;
+use crate::values::computed::length::{Length, NonNegativeLength};
+#[cfg(feature = "gecko")]
+use crate::values::computed::url::ComputedUrl;
+use crate::values::computed::{Angle, NonNegativeNumber, ZeroToOneNumber};
+use crate::values::generics::effects::BoxShadow as GenericBoxShadow;
+use crate::values::generics::effects::Filter as GenericFilter;
+use crate::values::generics::effects::SimpleShadow as GenericSimpleShadow;
+#[cfg(not(feature = "gecko"))]
+use crate::values::Impossible;
+
+/// A computed value for a single shadow of the `box-shadow` property.
+pub type BoxShadow = GenericBoxShadow<Color, Length, NonNegativeLength, Length>;
+
+/// A computed value for a single `filter`.
+#[cfg(feature = "gecko")]
+pub type Filter = GenericFilter<
+    Angle,
+    NonNegativeNumber,
+    ZeroToOneNumber,
+    NonNegativeLength,
+    SimpleShadow,
+    ComputedUrl,
+>;
+
+/// A computed value for a single `filter`.
+#[cfg(feature = "servo")]
+pub type Filter = GenericFilter<
+    Angle,
+    NonNegativeNumber,
+    ZeroToOneNumber,
+    NonNegativeLength,
+    Impossible,
+    Impossible,
+>;
+
+/// A computed value for the `drop-shadow()` filter.
+pub type SimpleShadow = GenericSimpleShadow<Color, Length, NonNegativeLength>;