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style: Make AuthorStylesEnabled an enum.

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Chances are we need to pass it around in a bit.

Also invert the boolean because I don't want to reason about double negations,
even if they're simple.

MozReview-Commit-ID: KhX4lDKwDoj
This commit is contained in:
Emilio Cobos Álvarez 2018-02-08 12:40:27 +01:00
parent 4cc5717116
commit 438251cbfc
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GPG key ID: 056B727BB9C1027C
3 changed files with 33 additions and 20 deletions
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38
components/style/stylesheet_set.rs
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@ -124,6 +124,16 @@ impl Default for DataValidity {
}
}
/// Whether author styles are enabled.
///
/// This is used to support Gecko.
#[allow(missing_docs)]
#[derive(Clone, Copy, Debug, PartialEq, Eq)]
pub enum AuthorStylesEnabled {
Yes,
No,
}
/// A struct to iterate over the different stylesheets to be flushed.
pub struct StylesheetFlusher<'a, S>
where
@ -132,7 +142,7 @@ where
origins_dirty: OriginSet,
collections: &'a mut PerOrigin<SheetCollection<S>>,
origin_data_validity: PerOrigin<DataValidity>,
author_style_disabled: bool,
author_styles_enabled: AuthorStylesEnabled,
had_invalidations: bool,
}
@ -199,7 +209,9 @@ where
"origin_data_validity should be a subset of origins_dirty!"
);
if self.author_style_disabled && origin == Origin::Author {
if self.author_styles_enabled == AuthorStylesEnabled::No &&
origin == Origin::Author
{
return PerOriginFlusher {
iter: [].iter_mut(),
validity,
@ -400,8 +412,8 @@ where
/// The invalidations for stylesheets added or removed from this document.
invalidations: StylesheetInvalidationSet,
/// Has author style been disabled?
author_style_disabled: bool,
/// Whether author styles are enabled.
author_styles_enabled: AuthorStylesEnabled,
}
impl<S> DocumentStylesheetSet<S>
@ -413,7 +425,7 @@ where
Self {
collections: Default::default(),
invalidations: StylesheetInvalidationSet::new(),
author_style_disabled: false,
author_styles_enabled: AuthorStylesEnabled::Yes,
}
}
@ -427,12 +439,6 @@ where
self.collections.borrow_for_origin(&origin).get(index)
}
/// Returns whether author styles have been disabled for the current
/// stylesheet set.
pub fn author_style_disabled(&self) -> bool {
self.author_style_disabled
}
fn collect_invalidations_for(
&mut self,
device: Option<&Device>,
@ -505,12 +511,12 @@ where
}
/// Notes that the author style has been disabled for this document.
pub fn set_author_style_disabled(&mut self, disabled: bool) {
debug!("DocumentStylesheetSet::set_author_style_disabled");
if self.author_style_disabled == disabled {
pub fn set_author_styles_enabled(&mut self, enabled: AuthorStylesEnabled) {
debug!("DocumentStylesheetSet::set_author_styles_enabled");
if self.author_styles_enabled == enabled {
return;
}
self.author_style_disabled = disabled;
self.author_styles_enabled = enabled;
self.invalidations.invalidate_fully();
self.collections.borrow_mut_for_origin(&Origin::Author)
.set_data_validity_at_least(DataValidity::FullyInvalid)
@ -554,7 +560,7 @@ where
StylesheetFlusher {
collections: &mut self.collections,
author_style_disabled: self.author_style_disabled,
author_styles_enabled: self.author_styles_enabled,
had_invalidations,
origins_dirty,
origin_data_validity,