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Add aria labels to footnote backlinks

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Rohan Kumar 2022-04-18 08:59:43 -07:00
parent 8d34425e45
commit 1391b93dd0
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GPG key ID: 1E892DB2A5F84479
1 changed files with 11 additions and 8 deletions
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19
layouts/partials/processed-content.html
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@ -1,11 +1,13 @@
{{ $footnote_heading := printf "Footnotes" -}}
{{ if .Params.footnote_heading -}} {{ if .Params.footnote_heading -}}
{{ $footnote_heading = .Params.footnote_heading -}}
{{end}}
<!--Add heading to footnotes, remove unused class--> <!--Add heading to footnotes, remove unused class-->
{{ $references := `(<section class="footnotes" role="doc-endnotes"> {{ $referencesWithoutHeading := `(<section class="footnotes" role="doc-endnotes">
<hr>)` -}} <hr>)` -}}
{{ $heading := .Params.footnote_heading -}}
{{ $referencesWithHeading := printf `<section role="doc-endnotes" aria-labelledby="note-hd"> {{ $referencesWithHeading := printf `<section role="doc-endnotes" aria-labelledby="note-hd">
<h2 id="note-hd">%s</h2>` ($heading) -}} <h2 id="note-hd">%s</h2>` ($footnote_heading) -}}
<!--Remove deprecated DPUB-ARIA role and unused classes--> <!--Remove deprecated DPUB-ARIA role and unused classes-->
{{ $endnote := `(role="doc-endnote"|class="footnote-(back)?ref")` }} {{ $endnote := `(role="doc-endnote"|class="footnote-(back)?ref")` }}
@ -16,10 +18,11 @@
{{ $preWithTabIndex := `<pre tabindex="0">` }} {{ $preWithTabIndex := `<pre tabindex="0">` }}
<!--Move the Table of Contents heading *inside* the <nav> element--> <!--Move the Table of Contents heading *inside* the <nav> element-->
{{ $tocHeadingOutside := `<h2>Table of Contents</h2><nav id="TableOfContents">` }} {{ $tocHeadingOutside := `<h2>Table of Contents</h2><nav(?:.*)>` }}
{{ $tocHeadingInside := `<nav id=TableOfContents role="doc-toc"><h2 id="toc-hd">Table of Contents</h2>` }} {{ $tocHeadingInside := `<nav id=TableOfContents role="doc-toc"><h2 id="toc-hd">Table of Contents</h2>` }}
{{ .Content | replaceRE $references $referencesWithHeading | replaceRE $endnote $noEndnote | replaceRE $preWithoutTabIndex $preWithTabIndex | replaceRE $tocHeadingOutside $tocHeadingInside | safeHTML -}} <!--Give footnote backlinks accessible names-->
{{ else -}} {{ $footnoteBacklinksBad := `<a href="#fnref:([0-9]*)"(.*role="doc-backlink"(?:.*)?)>` }}
{{ .Content -}} {{ $footnoteBacklinksGood := `<a href="#fnref:${1}" title="back to reference $1" aria-label="back to reference $1"${2}>` }}
{{ end -}}
{{ .Content | replaceRE $referencesWithoutHeading $referencesWithHeading | replaceRE $endnote $noEndnote | replaceRE $preWithoutTabIndex $preWithTabIndex | replaceRE $tocHeadingOutside $tocHeadingInside | replaceRE $footnoteBacklinksBad $footnoteBacklinksGood | safeHTML -}}