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Clean up css::compute

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This commit is contained in:
Brian Anderson 2012-11-03 00:19:50 -07:00
parent daaaac7740
commit 8b2611ec90
1 changed files with 10 additions and 7 deletions
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17
src/servo/css/compute.rs
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@ -1,5 +1,8 @@
/*!
Calculate styles for Nodes based on SelectResults, resolving inherited values
Calculates computed Node styles, based on CSS SelectResults.
These methods mostly defer to the Node's ComputedStyle object.
The only exception is that this is where inheritance is resolved.
*/
use dom::node::Node;
@ -17,27 +20,27 @@ pub trait ComputeStyles {
impl Node: ComputeStyles {
fn compute_background_color(&self) -> Color {
compute(self, rgba(0, 0, 0, 0.0), |cs| cs.background_color() )
resolve(self, rgba(0, 0, 0, 0.0), |cs| cs.background_color() )
}
fn compute_border_top_width(&self) -> CSSBorderWidth {
compute(self, BdrWidthLength(Px(0.0)), |cs| cs.border_top_width() )
resolve(self, BdrWidthLength(Px(0.0)), |cs| cs.border_top_width() )
}
fn compute_border_right_width(&self) -> CSSBorderWidth {
compute(self, BdrWidthLength(Px(0.0)), |cs| cs.border_right_width() )
resolve(self, BdrWidthLength(Px(0.0)), |cs| cs.border_right_width() )
}
fn compute_border_bottom_width(&self) -> CSSBorderWidth {
compute(self, BdrWidthLength(Px(0.0)), |cs| cs.border_bottom_width() )
resolve(self, BdrWidthLength(Px(0.0)), |cs| cs.border_bottom_width() )
}
fn compute_border_left_width(&self) -> CSSBorderWidth {
compute(self, BdrWidthLength(Px(0.0)), |cs| cs.border_left_width() )
resolve(self, BdrWidthLength(Px(0.0)), |cs| cs.border_left_width() )
}
}
fn compute<T>(node: &Node, default: T, get: &fn(cs: ComputedStyle) -> CSSValue<T>) -> T {
fn resolve<T>(node: &Node, default: T, get: &fn(cs: ComputedStyle) -> CSSValue<T>) -> T {
let style = node.get_style();
let computed = style.computed_style();
let value = get(computed);