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Add basic integration of @counter-style.

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This commit is contained in:
Xidorn Quan 2017-05-16 09:47:13 +10:00
parent 161dc666b0
commit 11ac1e894e
6 changed files with 74 additions and 22 deletions
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28
components/style/gecko/rules.rs
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@ -10,7 +10,8 @@ use counter_style;
use cssparser::UnicodeRange;
use font_face::{FontFaceRuleData, Source};
use gecko_bindings::bindings;
use gecko_bindings::structs::{self, nsCSSFontFaceRule, nsCSSValue, nsCSSCounterDesc};
use gecko_bindings::structs::{self, nsCSSFontFaceRule, nsCSSValue};
use gecko_bindings::structs::{nsCSSCounterDesc, nsCSSCounterStyleRule};
use gecko_bindings::sugar::ns_css_value::ToNsCssValue;
use gecko_bindings::sugar::refptr::{RefPtr, UniqueRefPtr};
use shared_lock::{ToCssWithGuard, SharedRwLockReadGuard};
@ -137,6 +138,31 @@ impl ToCssWithGuard for FontFaceRule {
}
}
/// A @counter-style rule
pub type CounterStyleRule = RefPtr<nsCSSCounterStyleRule>;
impl From<counter_style::CounterStyleRuleData> for CounterStyleRule {
fn from(data: counter_style::CounterStyleRuleData) -> CounterStyleRule {
let mut result = unsafe {
UniqueRefPtr::from_addrefed(
bindings::Gecko_CSSCounterStyle_Create(data.name().0.as_ptr()))
};
data.set_descriptors(&mut result.mValues);
result.get()
}
}
impl ToCssWithGuard for CounterStyleRule {
fn to_css<W>(&self, _guard: &SharedRwLockReadGuard, dest: &mut W) -> fmt::Result
where W: fmt::Write {
ns_auto_string!(css_text);
unsafe {
bindings::Gecko_CSSCounterStyle_GetCssText(self.get(), &mut *css_text);
}
write!(dest, "{}", css_text)
}
}
/// The type of nsCSSCounterStyleRule::mValues
pub type CounterStyleDescriptors = [nsCSSValue; nsCSSCounterDesc::eCSSCounterDesc_COUNT as usize];