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style: Move the stylesheet set methods under a macro to reuse it soon.

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MozReview-Commit-ID: 50Srw4Mjw18
This commit is contained in:
Emilio Cobos Álvarez 2018-02-08 15:56:26 +01:00
parent a254dc12a4
commit 5e8dd8a2d4
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GPG key ID: 056B727BB9C1027C
1 changed files with 90 additions and 71 deletions
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161
components/style/stylesheet_set.rs
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@ -394,6 +394,85 @@ where
invalidations: StylesheetInvalidationSet,
}
/// This macro defines methods common to DocumentStylesheetSet and
/// AuthorStylesheetSet.
///
/// We could simplify the setup moving invalidations to SheetCollection, but
/// that would imply not sharing invalidations across origins of the same
/// documents, which is slightly annoying.
macro_rules! sheet_set_methods {
($set_name:expr) => {
fn collect_invalidations_for(
&mut self,
device: Option<&Device>,
sheet: &S,
guard: &SharedRwLockReadGuard,
) {
if let Some(device) = device {
self.invalidations.collect_invalidations_for(device, sheet, guard);
}
}
/// Appends a new stylesheet to the current set.
///
/// No device implies not computing invalidations.
pub fn append_stylesheet(
&mut self,
device: Option<&Device>,
sheet: S,
guard: &SharedRwLockReadGuard
) {
debug!(concat!($set_name, "::append_stylesheet"));
self.collect_invalidations_for(device, &sheet, guard);
let collection = self.collection_for(&sheet, guard);
collection.append(sheet);
}
/// Prepend a new stylesheet to the current set.
pub fn prepend_stylesheet(
&mut self,
device: Option<&Device>,
sheet: S,
guard: &SharedRwLockReadGuard
) {
debug!(concat!($set_name, "::prepend_stylesheet"));
self.collect_invalidations_for(device, &sheet, guard);
let collection = self.collection_for(&sheet, guard);
collection.prepend(sheet);
}
/// Insert a given stylesheet before another stylesheet in the document.
pub fn insert_stylesheet_before(
&mut self,
device: Option<&Device>,
sheet: S,
before_sheet: S,
guard: &SharedRwLockReadGuard,
) {
debug!(concat!($set_name, "::insert_stylesheet_before"));
self.collect_invalidations_for(device, &sheet, guard);
let collection = self.collection_for(&sheet, guard);
collection.insert_before(sheet, &before_sheet);
}
/// Remove a given stylesheet from the set.
pub fn remove_stylesheet(
&mut self,
device: Option<&Device>,
sheet: S,
guard: &SharedRwLockReadGuard,
) {
debug!(concat!($set_name, "::remove_stylesheet"));
self.collect_invalidations_for(device, &sheet, guard);
let collection = self.collection_for(&sheet, guard);
collection.remove(&sheet)
}
}
}
impl<S> DocumentStylesheetSet<S>
where
S: StylesheetInDocument + PartialEq + 'static,
@ -406,6 +485,17 @@ where
}
}
fn collection_for(
&mut self,
sheet: &S,
guard: &SharedRwLockReadGuard,
) -> &mut SheetCollection<S> {
let origin = sheet.contents(guard).origin;
self.collections.borrow_mut_for_origin(&origin)
}
sheet_set_methods!("DocumentStylesheetSet");
/// Returns the number of stylesheets in the set.
pub fn len(&self) -> usize {
self.collections.iter_origins().fold(0, |s, (item, _)| s + item.len())
@ -416,77 +506,6 @@ where
self.collections.borrow_for_origin(&origin).get(index)
}
fn collect_invalidations_for(
&mut self,
device: Option<&Device>,
sheet: &S,
guard: &SharedRwLockReadGuard,
) {
if let Some(device) = device {
self.invalidations.collect_invalidations_for(device, sheet, guard);
}
}
/// Appends a new stylesheet to the current set.
///
/// No device implies not computing invalidations.
pub fn append_stylesheet(
&mut self,
device: Option<&Device>,
sheet: S,
guard: &SharedRwLockReadGuard
) {
debug!("DocumentStylesheetSet::append_stylesheet");
self.collect_invalidations_for(device, &sheet, guard);
let origin = sheet.contents(guard).origin;
self.collections.borrow_mut_for_origin(&origin).append(sheet);
}
/// Prepend a new stylesheet to the current set.
pub fn prepend_stylesheet(
&mut self,
device: Option<&Device>,
sheet: S,
guard: &SharedRwLockReadGuard
) {
debug!("DocumentStylesheetSet::prepend_stylesheet");
self.collect_invalidations_for(device, &sheet, guard);
let origin = sheet.contents(guard).origin;
self.collections.borrow_mut_for_origin(&origin).prepend(sheet)
}
/// Insert a given stylesheet before another stylesheet in the document.
pub fn insert_stylesheet_before(
&mut self,
device: Option<&Device>,
sheet: S,
before_sheet: S,
guard: &SharedRwLockReadGuard,
) {
debug!("DocumentStylesheetSet::insert_stylesheet_before");
self.collect_invalidations_for(device, &sheet, guard);
let origin = sheet.contents(guard).origin;
self.collections
.borrow_mut_for_origin(&origin)
.insert_before(sheet, &before_sheet)
}
/// Remove a given stylesheet from the set.
pub fn remove_stylesheet(
&mut self,
device: Option<&Device>,
sheet: S,
guard: &SharedRwLockReadGuard,
) {
debug!("StylesheetSet::remove_stylesheet");
self.collect_invalidations_for(device, &sheet, guard);
let origin = sheet.contents(guard).origin;
self.collections.borrow_mut_for_origin(&origin).remove(&sheet)
}
/// Returns whether the given set has changed from the last flush.
pub fn has_changed(&self) -> bool {
self.collections.iter_origins().any(|(collection, _)| collection.dirty)