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Introduce <LayoutDom<Element>>::attrs()

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This safe method is the basic block to access element attributes from layout.
We reuse it in the other attr-related layout methods to remove a pretty big
source of rampant unsafe code between script and layout.
This commit is contained in:
Anthony Ramine 2020-03-31 18:46:49 +02:00
parent 0bda174823
commit 5ff931d171
16 changed files with 203 additions and 301 deletions
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24
components/script/dom/htmlhrelement.rs
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@ -71,25 +71,19 @@ pub trait HTMLHRLayoutHelpers {
}
impl HTMLHRLayoutHelpers for LayoutDom<'_, HTMLHRElement> {
#[allow(unsafe_code)]
fn get_color(self) -> Option<RGBA> {
unsafe {
self.upcast::<Element>()
.get_attr_for_layout(&ns!(), &local_name!("color"))
.and_then(AttrValue::as_color)
.cloned()
}
self.upcast::<Element>()
.get_attr_for_layout(&ns!(), &local_name!("color"))
.and_then(AttrValue::as_color)
.cloned()
}
#[allow(unsafe_code)]
fn get_width(self) -> LengthOrPercentageOrAuto {
unsafe {
self.upcast::<Element>()
.get_attr_for_layout(&ns!(), &local_name!("width"))
.map(AttrValue::as_dimension)
.cloned()
.unwrap_or(LengthOrPercentageOrAuto::Auto)
}
self.upcast::<Element>()
.get_attr_for_layout(&ns!(), &local_name!("width"))
.map(AttrValue::as_dimension)
.cloned()
.unwrap_or(LengthOrPercentageOrAuto::Auto)
}
}