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Add a utility function to convert PseudoElement to nsIAtom*.

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MozReview-Commit-ID: 14qYFpiW0iG
This commit is contained in:
Hiroyuki Ikezoe 2017-03-10 11:08:57 +09:00
parent d8f08b80e0
commit 22de4dc7a6
2 changed files with 10 additions and 3 deletions
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8
components/style/gecko/selector_parser.rs
View file

@ -7,11 +7,13 @@
use cssparser::ToCss;
use element_state::ElementState;
use gecko_bindings::structs::CSSPseudoClassType;
use gecko_bindings::structs::nsIAtom;
use selector_parser::{SelectorParser, PseudoElementCascadeType};
use selector_parser::{attr_equals_selector_is_shareable, attr_exists_selector_is_shareable};
use selectors::parser::AttrSelector;
use std::borrow::Cow;
use std::fmt;
use std::ptr;
use string_cache::{Atom, Namespace, WeakAtom, WeakNamespace};
/// A representation of a CSS pseudo-element.
@ -111,6 +113,12 @@ impl PseudoElement {
None
}
/// Returns null or nsIAtom pointer corresponding to a given PseudoElement.
#[inline]
pub fn ns_atom_or_null_from_opt(pseudo: Option<&PseudoElement>) -> *mut nsIAtom {
pseudo.map(|p| p.as_atom().as_ptr()).unwrap_or(ptr::null_mut())
}
}
impl ToCss for PseudoElement {

5
components/style/gecko/wrapper.rs
View file

@ -416,7 +416,7 @@ impl<'le> TElement for GeckoElement<'le> {
}
fn get_animation_rules(&self, pseudo: Option<&PseudoElement>) -> AnimationRules {
let atom_ptr = pseudo.map(|p| p.as_atom().as_ptr()).unwrap_or(ptr::null_mut());
let atom_ptr = PseudoElement::ns_atom_or_null_from_opt(pseudo);
unsafe {
AnimationRules(
Gecko_GetAnimationRule(self.0, atom_ptr, CascadeLevel::Animations).into_arc_opt(),
@ -454,9 +454,8 @@ impl<'le> TElement for GeckoElement<'le> {
_existing_values: &'a Arc<ComputedValues>,
pseudo: Option<&PseudoElement>)
-> Option<&'a nsStyleContext> {
let atom_ptr = PseudoElement::ns_atom_or_null_from_opt(pseudo);
unsafe {
let atom_ptr = pseudo.map(|p| p.as_atom().as_ptr())
.unwrap_or(ptr::null_mut());
let context_ptr = Gecko_GetStyleContext(self.as_node().0, atom_ptr);
context_ptr.as_ref()
}