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use typst_utils::singleton;
use crate::foundations::{elem, Content, NativeElement};
/// Inserts a line break.
///
/// Advances the paragraph to the next line. A single trailing line break at the
/// end of a paragraph is ignored, but more than one creates additional empty
/// lines.
///
/// # Example
/// ```example
/// *Date:* 26.12.2022 \
/// *Topic:* Infrastructure Test \
/// *Severity:* High \
/// ```
///
/// # Syntax
/// This function also has dedicated syntax: To insert a line break, simply write
/// a backslash followed by whitespace. This always creates an unjustified
/// break.
#[elem(title = "Line Break")]
pub struct LinebreakElem {
/// Whether to justify the line before the break.
///
/// This is useful if you found a better line break opportunity in your
/// justified text than Typst did.
///
/// ```example
/// #set par(justify: true)
/// #let jb = linebreak(justify: true)
///
/// I have manually tuned the #jb
/// line breaks in this paragraph #jb
/// for an _interesting_ result. #jb
/// ```
#[default(false)]
pub justify: bool,
}
impl LinebreakElem {
/// Get the globally shared linebreak element.
pub fn shared() -> &'static Content {
singleton!(Content, LinebreakElem::new().pack())
}
}
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