Merge 44bb2da4624b2d0114c049bb2bd2394e2ca0399e into 9a6268050fb769e18c4889fa5f59d4150e8878d6

# Conflicts:
#	crates/typst-cli/src/query.rs
#	crates/typst-library/src/diag.rs

crates/typst-cli/src/args.rs

@@ -155,6 +155,10 @@ pub struct QueryCommand {
     #[clap(long)]
     pub pretty: bool,
 
+    /// The target to compile for.
+    #[clap(long, default_value_t)]
+    pub target: Target,
+
     /// World arguments.
     #[clap(flatten)]
     pub world: WorldArgs,
@@ -457,6 +461,18 @@ pub enum OutputFormat {
 
 display_possible_values!(OutputFormat);
 
+/// The target to compile for.
+#[derive(Debug, Default, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, ValueEnum)]
+pub enum Target {
+    /// PDF and image formats.
+    #[default]
+    Paged,
+    /// HTML.
+    Html,
+}
+
+display_possible_values!(Target);
+
 /// Which format to use for diagnostics.
 #[derive(Debug, Default, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, ValueEnum)]
 pub enum DiagnosticFormat {

crates/typst-cli/src/query.rs

@@ -4,12 +4,13 @@ use serde::Serialize;
 use typst::diag::{bail, HintedStrResult, StrResult, Warned};
 use typst::engine::Sink;
 use typst::foundations::{Content, IntoValue, LocatableSelector, Scope};
+use typst::html::HtmlDocument;
 use typst::layout::PagedDocument;
 use typst::syntax::{Span, SyntaxMode};
-use typst::World;
+use typst::{Document, World};
 use typst_eval::eval_string;
 
-use crate::args::{QueryCommand, SerializationFormat};
+use crate::args::{QueryCommand, SerializationFormat, Target};
 use crate::compile::print_diagnostics;
 use crate::set_failed;
 use crate::world::SystemWorld;
@@ -22,12 +23,17 @@ pub fn query(command: &QueryCommand) -> HintedStrResult<()> {
     world.reset();
     world.source(world.main()).map_err(|err| err.to_string())?;
 
-    let Warned { output, warnings } = typst::compile(&world);
+    let Warned { output, warnings } = match command.target {
+        Target::Paged => typst::compile::<PagedDocument>(&world)
+            .map(|output| output.map(|document| retrieve(&world, command, &document))),
+        Target::Html => typst::compile::<HtmlDocument>(&world)
+            .map(|output| output.map(|document| retrieve(&world, command, &document))),
+    };
 
     match output {
         // Retrieve and print query results.
-        Ok(document) => {
-            let data = retrieve(&world, command, &document)?;
+        Ok(data) => {
+            let data = data?;
             let serialized = format(data, command)?;
             println!("{serialized}");
             print_diagnostics(&world, &[], &warnings, command.process.diagnostic_format)
@@ -51,10 +57,10 @@ pub fn query(command: &QueryCommand) -> HintedStrResult<()> {
 }
 
 /// Retrieve the matches for the selector.
-fn retrieve(
+fn retrieve<D: Document>(
     world: &dyn World,
     command: &QueryCommand,
-    document: &PagedDocument,
+    document: &D,
 ) -> HintedStrResult<Vec<Content>> {
     let selector = eval_string(
         &typst::ROUTINES,
@@ -77,7 +83,7 @@ fn retrieve(
     .cast::<LocatableSelector>()?;
 
     Ok(document
-        .introspector
+        .introspector()
         .query(&selector.0)
         .into_iter()
         .collect::<Vec<_>>())

crates/typst-html/src/convert.rs

@@ -109,10 +109,7 @@ fn handle(
             styles.chain(&style),
             Region::new(Size::splat(Abs::inf()), Axes::splat(false)),
         )?;
-        output.push(HtmlNode::Frame(HtmlFrame {
-            inner: frame,
-            text_size: styles.resolve(TextElem::size),
-        }));
+        output.push(HtmlNode::Frame(HtmlFrame::new(frame, styles)));
     } else {
         engine.sink.warn(warning!(
             child.span(),

crates/typst-html/src/dom.rs

@@ -2,10 +2,11 @@ use std::fmt::{self, Debug, Display, Formatter};
 
 use ecow::{EcoString, EcoVec};
 use typst_library::diag::{bail, HintedStrResult, StrResult};
-use typst_library::foundations::{cast, Dict, Repr, Str};
+use typst_library::foundations::{cast, Dict, Repr, Str, StyleChain};
 use typst_library::introspection::{Introspector, Tag};
 use typst_library::layout::{Abs, Frame};
 use typst_library::model::DocumentInfo;
+use typst_library::text::TextElem;
 use typst_syntax::Span;
 use typst_utils::{PicoStr, ResolvedPicoStr};
 
@@ -279,3 +280,10 @@ pub struct HtmlFrame {
     /// consistently.
     pub text_size: Abs,
 }
+
+impl HtmlFrame {
+    /// Wraps a laid-out frame.
+    pub fn new(inner: Frame, styles: StyleChain) -> Self {
+        Self { inner, text_size: styles.resolve(TextElem::size) }
+    }
+}

crates/typst-html/src/encode.rs

@@ -121,6 +121,7 @@ fn write_children(w: &mut Writer, element: &HtmlElement) -> SourceResult<()> {
     let pretty_inside = allows_pretty_inside(element.tag)
         && element.children.iter().any(|node| match node {
             HtmlNode::Element(child) => wants_pretty_around(child.tag),
+            HtmlNode::Frame(_) => true,
             _ => false,
         });
 
@@ -305,14 +306,6 @@ fn write_escape(w: &mut Writer, c: char) -> StrResult<()> {
 
 /// Encode a laid out frame into the writer.
 fn write_frame(w: &mut Writer, frame: &HtmlFrame) {
-    // FIXME: This string replacement is obviously a hack.
-    let svg = typst_svg::svg_frame(&frame.inner).replace(
-        "<svg class",
-        &format!(
-            "<svg style=\"overflow: visible; width: {}em; height: {}em;\" class",
-            frame.inner.width() / frame.text_size,
-            frame.inner.height() / frame.text_size,
-        ),
-    );
+    let svg = typst_svg::svg_html_frame(&frame.inner, frame.text_size);
     w.buf.push_str(&svg);
 }

crates/typst-library/src/diag.rs

@@ -151,6 +151,13 @@ pub struct Warned<T> {
     pub warnings: EcoVec<SourceDiagnostic>,
 }
 
+impl<T> Warned<T> {
+    /// Maps the output, keeping the same warnings.
+    pub fn map<R, F: FnOnce(T) -> R>(self, f: F) -> Warned<R> {
+        Warned { output: f(self.output), warnings: self.warnings }
+    }
+}
+
 /// An error or warning in a source or text file.
 ///
 /// The contained spans will only be detached if any of the input source files

crates/typst-svg/src/lib.rs

@@ -45,6 +45,30 @@ pub fn svg_frame(frame: &Frame) -> String {
     renderer.finalize()
 }
 
+/// Export a frame into an SVG suitable for embedding into HTML.
+#[typst_macros::time(name = "svg html frame")]
+pub fn svg_html_frame(frame: &Frame, text_size: Abs) -> String {
+    let mut renderer = SVGRenderer::with_options(xmlwriter::Options {
+        indent: xmlwriter::Indent::None,
+        ..Default::default()
+    });
+    renderer.write_header_with_custom_attrs(frame.size(), |xml| {
+        xml.write_attribute("class", "typst-frame");
+        xml.write_attribute_fmt(
+            "style",
+            format_args!(
+                "overflow: visible; width: {}em; height: {}em;",
+                frame.width() / text_size,
+                frame.height() / text_size,
+            ),
+        );
+    });
+
+    let state = State::new(frame.size(), Transform::identity());
+    renderer.render_frame(state, Transform::identity(), frame);
+    renderer.finalize()
+}
+
 /// Export a document with potentially multiple pages into a single SVG file.
 ///
 /// The padding will be added around and between the individual frames.
@@ -158,8 +182,13 @@ impl State {
 impl SVGRenderer {
     /// Create a new SVG renderer with empty glyph and clip path.
     fn new() -> Self {
+        Self::with_options(Default::default())
+    }
+
+    /// Create a new SVG renderer with the given configuration.
+    fn with_options(options: xmlwriter::Options) -> Self {
         SVGRenderer {
-            xml: XmlWriter::new(xmlwriter::Options::default()),
+            xml: XmlWriter::new(options),
             glyphs: Deduplicator::new('g'),
             clip_paths: Deduplicator::new('c'),
             gradient_refs: Deduplicator::new('g'),
@@ -170,11 +199,22 @@ impl SVGRenderer {
         }
     }
 
-    /// Write the SVG header, including the `viewBox` and `width` and `height`
-    /// attributes.
+    /// Write the default SVG header, including a `typst-doc` class, the
+    /// `viewBox` and `width` and `height` attributes.
     fn write_header(&mut self, size: Size) {
+        self.write_header_with_custom_attrs(size, |xml| {
+            xml.write_attribute("class", "typst-doc");
+        });
+    }
+
+    /// Write the SVG header with additional attributes and standard attributes.
+    fn write_header_with_custom_attrs(
+        &mut self,
+        size: Size,
+        write_custom_attrs: impl FnOnce(&mut XmlWriter),
+    ) {
         self.xml.start_element("svg");
-        self.xml.write_attribute("class", "typst-doc");
+        write_custom_attrs(&mut self.xml);
         self.xml.write_attribute_fmt(
             "viewBox",
             format_args!("0 0 {} {}", size.x.to_pt(), size.y.to_pt()),

tests/ref/html/html-frame.html

@@ -0,0 +1,11 @@
+<!DOCTYPE html>
+<html>
+  <head>
+    <meta charset="utf-8">
+    <meta name="viewport" content="width=device-width, initial-scale=1">
+  </head>
+  <body>
+    <p>A rectangle:</p>
+    <svg class="typst-frame" style="overflow: visible; width: 4.5em; height: 3em;" viewBox="0 0 45 30" width="45pt" height="30pt" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:h5="http://www.w3.org/1999/xhtml"><g><g transform="translate(-0 -0)"><path class="typst-shape" fill="none" stroke="#000000" stroke-width="1" stroke-linecap="butt" stroke-linejoin="miter" stroke-miterlimit="4" d="M 0 0 L 0 30 L 45 30 L 45 0 Z "/></g></g></svg>
+  </body>
+</html>

tests/suite/html/frame.typ

@@ -1,5 +1,6 @@
-// No proper HTML tests here yet because we don't want to test SVG export just
-// yet. We'll definitely add tests at some point.
+--- html-frame html ---
+A rectangle:
+#html.frame(rect())
 
 --- html-frame-in-layout ---
 // Ensure that HTML frames are transparent in layout. This is less important for