Adding upstream version 86.0.1.upstream/86.0.1upstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 78 insertions, 0 deletions

diff --git a/servo/components/style/author_styles.rs b/servo/components/style/author_styles.rs
new file mode 100644
index 0000000000..58d9bda423
--- /dev/null
+++ b/servo/components/style/author_styles.rs
@@ -0,0 +1,78 @@
+/* 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/. */
+
+//! A set of author stylesheets and their computed representation, such as the
+//! ones used for ShadowRoot.
+
+use crate::context::QuirksMode;
+use crate::dom::TElement;
+#[cfg(feature = "gecko")]
+use crate::gecko_bindings::sugar::ownership::{HasBoxFFI, HasFFI, HasSimpleFFI};
+use crate::invalidation::media_queries::ToMediaListKey;
+use crate::media_queries::Device;
+use crate::shared_lock::SharedRwLockReadGuard;
+use crate::stylesheet_set::AuthorStylesheetSet;
+use crate::stylesheets::StylesheetInDocument;
+use crate::stylist::CascadeData;
+
+/// A set of author stylesheets and their computed representation, such as the
+/// ones used for ShadowRoot.
+#[derive(MallocSizeOf)]
+pub struct AuthorStyles<S>
+where
+    S: StylesheetInDocument + PartialEq + 'static,
+{
+    /// The sheet collection, which holds the sheet pointers, the invalidations,
+    /// and all that stuff.
+    pub stylesheets: AuthorStylesheetSet<S>,
+    /// The actual cascade data computed from the stylesheets.
+    pub data: CascadeData,
+}
+
+impl<S> AuthorStyles<S>
+where
+    S: StylesheetInDocument + PartialEq + 'static,
+{
+    /// Create an empty AuthorStyles.
+    #[inline]
+    pub fn new() -> Self {
+        Self {
+            stylesheets: AuthorStylesheetSet::new(),
+            data: CascadeData::new(),
+        }
+    }
+
+    /// Flush the pending sheet changes, updating `data` as appropriate.
+    ///
+    /// TODO(emilio): Need a host element and a snapshot map to do invalidation
+    /// properly.
+    #[inline]
+    pub fn flush<E>(
+        &mut self,
+        device: &Device,
+        quirks_mode: QuirksMode,
+        guard: &SharedRwLockReadGuard,
+    ) where
+        E: TElement,
+        S: ToMediaListKey,
+    {
+        let flusher = self
+            .stylesheets
+            .flush::<E>(/* host = */ None, /* snapshot_map = */ None);
+
+        // Ignore OOM.
+        let _ = self
+            .data
+            .rebuild(device, quirks_mode, flusher.sheets, guard);
+    }
+}
+
+#[cfg(feature = "gecko")]
+unsafe impl HasFFI for AuthorStyles<crate::gecko::data::GeckoStyleSheet> {
+    type FFIType = crate::gecko_bindings::structs::RawServoAuthorStyles;
+}
+#[cfg(feature = "gecko")]
+unsafe impl HasSimpleFFI for AuthorStyles<crate::gecko::data::GeckoStyleSheet> {}
+#[cfg(feature = "gecko")]
+unsafe impl HasBoxFFI for AuthorStyles<crate::gecko::data::GeckoStyleSheet> {}