48 lines
1.2 KiB
Rust
48 lines
1.2 KiB
Rust
use crate::layout::{LayoutRoot, PageNode};
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use crate::prelude::*;
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/// The root node that represents a full document.
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///
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/// # Tags
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/// - meta
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#[func]
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#[capable(LayoutRoot)]
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#[derive(Hash)]
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pub struct DocumentNode(pub StyleVec<PageNode>);
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#[node]
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impl DocumentNode {
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/// The document's title.
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#[property(referenced)]
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pub const TITLE: Option<EcoString> = None;
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/// The document's author.
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#[property(referenced)]
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pub const AUTHOR: Option<EcoString> = None;
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}
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impl LayoutRoot for DocumentNode {
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/// Layout the document into a sequence of frames, one per page.
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fn layout_root(&self, vt: &mut Vt, styles: StyleChain) -> SourceResult<Document> {
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let mut pages = vec![];
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for (page, map) in self.0.iter() {
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let number = 1 + pages.len();
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let fragment = page.layout(vt, number, styles.chain(map))?;
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pages.extend(fragment);
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}
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Ok(Document {
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pages,
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title: styles.get(Self::TITLE).clone(),
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author: styles.get(Self::AUTHOR).clone(),
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})
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}
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}
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impl Debug for DocumentNode {
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fn fmt(&self, f: &mut Formatter) -> fmt::Result {
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f.write_str("Document ")?;
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self.0.fmt(f)
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}
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}
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