choose light or dark brand for Typst

wip:
- needs better name
- some lingering cases in typst_css where it needs access to choose-brand
instead of hard-coded brandMode
- needs tests

Author: gordonwoodhull

src/command/render/filters.ts

@@ -9,6 +9,7 @@ import { existsSync } from "../../deno_ral/fs.ts";
 import {
   kBibliography,
   kBrand,
+  kChooseBrand,
   kCitationLocation,
   kCiteMethod,
   kClearCellOptions,
@@ -909,6 +910,7 @@ const extractTypstFilterParams = (format: Format) => {
     [kTocIndent]: format.metadata[kTocIndent],
     [kLogo]: format.metadata[kLogo],
     [kCssPropertyProcessing]: format.metadata[kCssPropertyProcessing],
+    [kChooseBrand]: format.metadata[kChooseBrand],
     [kHtmlPreTagProcessing]: format.metadata[kHtmlPreTagProcessing],
   };
 };

src/config/constants.ts

@@ -141,6 +141,7 @@ export const kFontPaths = "font-paths";
 export const kHtmlTableProcessing = "html-table-processing";
 export const kHtmlPreTagProcessing = "html-pre-tag-processing";
 export const kCssPropertyProcessing = "css-property-processing";
+export const kChooseBrand = "choose-brand"
 export const kUseRsvgConvert = "use-rsvg-convert";
 export const kValidateYaml = "validate-yaml";
 

src/resources/filters/quarto-post/cell-renderings.lua

@@ -47,6 +47,13 @@ function choose_cell_renderings()
       if quarto.format.isHtmlOutput() and lightDiv and darkDiv then
         blocks:insert(pandoc.Div(lightDiv.content, pandoc.Attr("", {'light-content'}, {})))
         blocks:insert(pandoc.Div(darkDiv.content, pandoc.Attr("", {'dark-content'}, {})))
+      elseif quarto.format.isTypstOutput() and lightDiv and darkDiv then
+        local brandMode = param('choose-brand') or 'light'
+        if brandMode == 'light' then
+          blocks:insert(lightDiv)
+        elseif brandMode == 'dark' then
+          blocks:insert(darkDiv)
+        end
       else
         blocks:insert(lightDiv or darkDiv)
       end

src/resources/filters/quarto-post/typst-brand-yaml.lua

@@ -59,7 +59,7 @@ function render_typst_brand_yaml()
   return {
     Pandoc = function(pandoc0)
       local brand = param('brand')
-      local brandMode = 'light'
+      local brandMode = param('choose-brand') or 'light'
       brand = brand and brand[brandMode]
       if brand and brand.processedData then
         -- color
@@ -300,7 +300,7 @@ function render_typst_brand_yaml()
       end
     end,
     Meta = function(meta)
-      local brandMode = 'light'
+      local brandMode = param('choose-brand') or 'light'
       -- it can contain the path but we want to store an object here
       if not meta.brand or pandoc.utils.type(meta.brand) == 'Inlines' then
         meta.brand = {}