Add support for icon=false in typst callout

dev-docs/feature-format-matrix/qmd-files/callout/no-icon.qmd

@@ -1,9 +1,11 @@
 ---
 title: Callout with no icon
 format:
-  html: 
+  html:
     quality: 0
     comment: Title is a offset a little too far down
+  typst:
+    quality: 1
 ---
 
 ::: {.callout-note icon="false"}

news/changelog-1.9.md

@@ -29,6 +29,7 @@ All changes included in 1.9:
 - ([#13362](https://github.com/quarto-dev/quarto-cli/issues/13362)): Remove unused `blockquote` definitions from template.
 - ([#13452](https://github.com/quarto-dev/quarto-cli/issues/13452)): Wraps subfigure captions generated by `quarto_super()` in `block` function to avoid emitting `par` elements. (author: @christopherkenny)
 - ([#13474](https://github.com/quarto-dev/quarto-cli/issues/13474)): Heading font for title should default to `mainfont`.
+- ([#13555](https://github.com/quarto-dev/quarto-cli/issues/13555)): Add support for `icon=false` in callouts when used in `format: typst`.
 
 ## Projects
 

src/resources/filters/customnodes/callout.lua

@@ -276,26 +276,26 @@ function _callout_main()
       end
     end
     if callout.attr.identifier == "" then
-      return _quarto.format.typst.function_call("callout", { 
+      return _quarto.format.typst.function_call("callout", {
         { "body", _quarto.format.typst.as_typst_content(callout.content) },
         { "title", _quarto.format.typst.as_typst_content(
           (not quarto.utils.is_empty_node(callout.title) and callout.title) or
           pandoc.Plain(_quarto.modules.callouts.displayName(callout.type))
         )},
         { "background_color", pandoc.RawInline("typst", background_color) },
         { "icon_color", pandoc.RawInline("typst", icon_color) },
-        { "icon", pandoc.RawInline("typst", "" .. icon .. "()")},
+        { "icon", pandoc.RawInline("typst", callout.icon == false and "none" or ("" .. icon .. "()"))},
         { "body_background_color", pandoc.RawInline("typst", body_background_color)}
       })
     end
 
-    local typst_callout = _quarto.format.typst.function_call("callout", { 
+    local typst_callout = _quarto.format.typst.function_call("callout", {
       { "body", _quarto.format.typst.as_typst_content(callout.content) },
       { "title", _quarto.format.typst.as_typst_content(callout.title, "inlines")
        },
       { "background_color", pandoc.RawInline("typst", background_color) },
       { "icon_color", pandoc.RawInline("typst", icon_color) },
-      { "icon", pandoc.RawInline("typst", "" .. icon .. "()")},
+      { "icon", pandoc.RawInline("typst", callout.icon == false and "none" or ("" .. icon .. "()"))},
       { "body_background_color", pandoc.RawInline("typst", body_background_color)}
     })
 

src/resources/formats/typst/pandoc/quarto/definitions.typ

@@ -117,7 +117,12 @@
   // when we cleanup pandoc's emitted code to avoid spaces this will have to change
   let old_callout = it.body.children.at(1).body.children.at(1)
   let old_title_block = old_callout.body.children.at(0)
-  let old_title = old_title_block.body.body.children.at(2)
+  let children = old_title_block.body.body.children
+  let old_title = if children.len() == 1 {
+    children.at(0)  // no icon: title at index 0
+  } else {
+    children.at(1)  // with icon: title at index 1
+  }
 
   // TODO use custom separator if available
   let new_title = if empty(old_title) {
@@ -127,12 +132,14 @@
   }
 
   let new_title_block = block_with_new_content(
-    old_title_block, 
+    old_title_block,
     block_with_new_content(
-      old_title_block.body, 
-      old_title_block.body.body.children.at(0) +
-      old_title_block.body.body.children.at(1) +
-      new_title))
+      old_title_block.body,
+      if children.len() == 1 {
+        new_title  // no icon: just the title
+      } else {
+        children.at(0) + new_title  // with icon: preserve icon block + new title
+      }))
 
   block_with_new_content(old_callout,
     block(below: 0pt, new_title_block) +
@@ -152,9 +159,9 @@
       width: 100%, 
       below: 0pt, 
       block(
-        fill: background_color, 
-        width: 100%, 
-        inset: 8pt)[#text(icon_color, weight: 900)[#icon] #title]) +
+        fill: background_color,
+        width: 100%,
+        inset: 8pt)[#if icon != none [#text(icon_color, weight: 900)[#icon] ]#title]) +
       if(body != []){
         block(
           inset: 1pt, 

tests/docs/smoke-all/typst/callout-no-icon.qmd

@@ -0,0 +1,53 @@
+---
+title: Callouts with icon=false
+format: typst
+keep-typ: true
+_quarto:
+  tests:
+    typst:
+      ensureTypstFileRegexMatches:
+        -
+          # we do one big regex to be sure to match in order
+          - '<no-icon-notes>[\s\S]+\#callout\([\s\S]+icon:\s*none[\s\S]+<no-icon-warnings>[\s\S]+\#callout\([\s\S]+icon:\s*none[\s\S]+<no-icon-tip>[\s\S]+\#callout\([\s\S]+icon:\s*none[\s\S]+<with-icon-important>[\s\S]+\#callout\([\s\S]+icon:\s*fa-'
+---
+
+## Note Callouts with icon=false {#no-icon-notes}
+
+::: {.callout-note icon="false"}
+
+## Note without icon
+
+This is a note callout without an icon.
+
+:::
+
+## Warnings Callouts with icon=false {#no-icon-warnings}
+
+::: {.callout-warning icon=false}
+
+## Warning without icon
+
+This is a warning callout without an icon.
+
+:::
+
+## Tip Callouts with icon=false {#no-icon-tip}
+
+
+::: {#tip-example .callout-tip icon="false"}
+
+A tip without a title and without an icon.
+
+:::
+
+See @tip-example
+
+## Regular callout with icon {#with-icon-important}
+
+::: {.callout-important}
+
+## Important with icon
+
+This callout should have an icon (default behavior).
+
+:::