hextra/layouts/partials/head.html
2025-04-04 00:07:12 +01:00

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<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
{{ if hugo.IsProduction -}}
<meta name="robots" content="index, follow" />
{{ else -}}
<meta name="robots" content="noindex, nofollow" />
{{ end -}}
{{ partialCached "favicons.html" . -}}
<title>
{{- if .IsHome -}}
{{ .Site.Title -}}
{{ else -}}
{{ with .Title }}{{ . }} {{ end -}}
{{ .Site.Title -}}
{{ end -}}
</title>
<meta name="description" content="{{ partial "utils/page-description.html" . }}" />
{{- with .Params.canonical -}}
<link rel="canonical" href="{{ . }}" itemprop="url" />
{{- else -}}
<link rel="canonical" href="{{ .Permalink }}" itemprop="url" />
{{- end -}}
{{- partial "opengraph.html" . -}}
{{- template "_internal/schema.html" . -}}
{{- template "_internal/twitter_cards.html" . -}}
{{- partialCached "head-css.html" . -}}
<!-- Google Analytics -->
{{- if and (eq hugo.Environment "production") .Site.Config.Services.GoogleAnalytics.ID }}
<link rel="preconnect" href="https://www.googletagmanager.com" crossorigin />
{{ partial "google-analytics.html" . }}
{{- end }}
<script>
/* Initialize light/dark mode */
const defaultTheme = '{{ site.Params.theme.default | default `system`}}';
const setDarkTheme = () => {
document.documentElement.classList.add("dark");
document.documentElement.style.colorScheme = "dark";
}
const setLightTheme = () => {
document.documentElement.classList.remove("dark");
document.documentElement.style.colorScheme = "light";
}
if ("color-theme" in localStorage) {
localStorage.getItem("color-theme") === "dark" ? setDarkTheme() : setLightTheme();
} else {
defaultTheme === "dark" ? setDarkTheme() : setLightTheme();
if (defaultTheme === "system") {
window.matchMedia("(prefers-color-scheme: dark)").matches ? setDarkTheme() : setLightTheme();
}
}
</script>
<!-- KaTeX-->
{{ $noop := .WordCount -}}
{{ if .Page.Store.Get "hasMath" -}}
<!-- TODO: make url configurable -->
{{ $katexBaseUrl := "https://cdn.jsdelivr.net/npm/katex@latest/dist" }}
{{ $katexCssUrl := printf "%s/katex%s.css" $katexBaseUrl (cond hugo.IsProduction ".min" "") -}}
{{ $katexFontPattern := "url(fonts/" }}
{{ $katexFontSubstituted := printf "url(%s/fonts/" $katexBaseUrl }}
{{ with try (resources.GetRemote $katexCssUrl) -}}
{{ with .Err -}}
{{ errorf "Could not retrieve KaTeX css file from %s. Reason: %s." $katexCssUrl . -}}
{{ else with.Value -}}
{{ $katexCssContent := strings.Replace .Content $katexFontPattern $katexFontSubstituted }}
{{ with resources.FromString (printf "css/katex%s.css" (cond hugo.IsProduction ".min" "")) $katexCssContent -}}
<link rel="stylesheet" href="{{- .RelPermalink -}}" integrity="{{- . | fingerprint -}}" crossorigin="anonymous" />
{{ end -}}
{{ end -}}
{{ end -}}
{{ end -}}
{{ partial "custom/head-end.html" . -}}
</head>