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/* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at https://mozilla.org/MPL/2.0/. */
use crate::context::LayoutContext;
use crate::dom::NodeExt;
use crate::dom_traversal::{NodeAndStyleInfo, PseudoElementContentItem};
use crate::replaced::ReplacedContent;
use style::properties::longhands::list_style_type::computed_value::T as ListStyleType;
use style::properties::style_structs;
use style::values::computed::Image;
/// https://drafts.csswg.org/css-lists/#content-property
pub(crate) fn make_marker<'dom, Node>(
context: &LayoutContext,
info: &NodeAndStyleInfo<Node>,
) -> Option<Vec<PseudoElementContentItem>>
where
Node: NodeExt<'dom>,
{
let style = info.style.get_list();
// https://drafts.csswg.org/css-lists/#marker-image
let marker_image = || match &style.list_style_image {
Image::Url(url) => Some(vec![
PseudoElementContentItem::Replaced(ReplacedContent::from_image_url(
info.node, context, url,
)?),
PseudoElementContentItem::Text(" ".into()),
]),
// XXX: Non-None image types unimplemented.
Image::ImageSet(..) |
Image::Rect(..) |
Image::Gradient(..) |
Image::CrossFade(..) |
Image::None => None,
};
marker_image().or_else(|| {
Some(vec![PseudoElementContentItem::Text(
marker_string(style)?.into(),
)])
})
}
/// https://drafts.csswg.org/css-lists/#marker-string
fn marker_string(style: &style_structs::List) -> Option<&'static str> {
// FIXME: add support for counters and other style types
match style.list_style_type {
ListStyleType::None => None,
ListStyleType::Disc => Some("• "),
ListStyleType::Circle => Some("◦ "),
ListStyleType::Square => Some("▪ "),
ListStyleType::DisclosureOpen => Some("▾ "),
ListStyleType::DisclosureClosed => Some("‣ "),
}
}
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