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style: Define a CascadeLevel enum, and make the rule tree operate on it.

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We'll use this level to know where to stop replacing nodes in the tree.
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Emilio Cobos Álvarez 2017-01-29 02:59:54 +01:00
parent 31ecc9b692
commit 314f2ce714
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6 changed files with 144 additions and 64 deletions
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3
components/script/dom/element.rs
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@ -105,6 +105,7 @@ use style::properties::{DeclaredValue, Importance};
use style::properties::{PropertyDeclaration, PropertyDeclarationBlock, parse_style_attribute};
use style::properties::longhands::{background_image, border_spacing, font_family, font_size, overflow_x};
use style::restyle_hints::RESTYLE_SELF;
use style::rule_tree::CascadeLevel;
use style::selector_parser::{NonTSPseudoClass, RestyleDamage, SelectorImpl, SelectorParser};
use style::sink::Push;
use style::stylist::ApplicableDeclarationBlock;
@ -380,7 +381,7 @@ impl LayoutElementHelpers for LayoutJS<Element> {
declarations: vec![(declaration, Importance::Normal)],
important_count: 0,
})),
Importance::Normal)
CascadeLevel::PresHints)
}
let bgcolor = if let Some(this) = self.downcast::<HTMLBodyElement>() {