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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 http://mozilla.org/MPL/2.0/. */
//! A set of author stylesheets and their computed representation, such as the
//! ones used for ShadowRoot and XBL.
use context::QuirksMode;
use dom::TElement;
#[cfg(feature = "gecko")]
use gecko_bindings::sugar::ownership::{HasBoxFFI, HasFFI, HasSimpleFFI};
use invalidation::media_queries::ToMediaListKey;
use media_queries::Device;
use shared_lock::SharedRwLockReadGuard;
use stylesheet_set::AuthorStylesheetSet;
use stylesheets::StylesheetInDocument;
use stylist::CascadeData;
/// A set of author stylesheets and their computed representation, such as the
/// ones used for ShadowRoot and XBL.
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,
/// The quirks mode of the last stylesheet flush, used because XBL sucks and
/// we should really fix it, see bug 1406875.
pub quirks_mode: QuirksMode,
}
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(),
quirks_mode: QuirksMode::NoQuirks,
}
}
/// 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);
if flusher.sheets.dirty() {
self.quirks_mode = quirks_mode;
}
// Ignore OOM.
let _ = self.data
.rebuild(device, quirks_mode, flusher.sheets, guard);
}
}
#[cfg(feature = "gecko")]
unsafe impl HasFFI for AuthorStyles<::gecko::data::GeckoStyleSheet> {
type FFIType = ::gecko_bindings::bindings::RawServoAuthorStyles;
}
#[cfg(feature = "gecko")]
unsafe impl HasSimpleFFI for AuthorStyles<::gecko::data::GeckoStyleSheet> {}
#[cfg(feature = "gecko")]
unsafe impl HasBoxFFI for AuthorStyles<::gecko::data::GeckoStyleSheet> {}
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