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use super::*;
use crate::layout::PadNode;
/// `pad`: Pad content at the sides.
///
/// # Positional parameters
/// - Padding for all sides: `padding`, of type `linear` relative to sides.
/// - Body: of type `template`.
///
/// # Named parameters
/// - Left padding: `left`, of type `linear` relative to parent width.
/// - Right padding: `right`, of type `linear` relative to parent width.
/// - Top padding: `top`, of type `linear` relative to parent height.
/// - Bottom padding: `bottom`, of type `linear` relative to parent height.
///
/// # Return value
/// A template that sets the body into a padded area.
pub fn pad(ctx: &mut EvalContext, args: &mut FuncArgs) -> Value {
let all = args.find(ctx);
let left = args.get(ctx, "left");
let top = args.get(ctx, "top");
let right = args.get(ctx, "right");
let bottom = args.get(ctx, "bottom");
let body = args.require::<TemplateValue>(ctx, "body").unwrap_or_default();
let padding = Sides::new(
left.or(all).unwrap_or_default(),
top.or(all).unwrap_or_default(),
right.or(all).unwrap_or_default(),
bottom.or(all).unwrap_or_default(),
);
Value::template("pad", move |ctx| {
let snapshot = ctx.state.clone();
let child = ctx.exec(&body).into();
ctx.push(PadNode { padding, child });
ctx.state = snapshot;
})
}
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