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{{ $scr := .Scratch }}
< head >
< meta charset = "utf-8" / >
< meta name = "viewport" content = "width=device-width, initial-scale=1" / >
< meta http-equiv = "X-UA-Compatible" content = "IE=edge" / >
< meta name = "generator" content = "Wowchemy {{ site.Data.wowchemy.version }} for Hugo" / >
{{/* EXTENSIBILITY HOOK: HEAD-START */}}
{{ partial "functions/get_hook" (dict "hook" "head-start" "context" .) }}
{{ if .Params.private }}
< meta name = "robots" content = "noindex" / >
{{- end -}}
{{/* Attempt to load superuser. */}}
{{ $superuser_name := "" }}
{{ $superuser_username := "" }}
{{ $superuser_role := "" }}
{{ range first 1 (where (where site.Pages "Section" "authors") "Params.superuser" true) }}
{{ $superuser_name = .Title }}
{{ $superuser_username = path.Base .File.Dir }}
{{ $superuser_role = .Params.role }}
{{ end }}
{{ $scr.Set "superuser_username" $superuser_username }}{{/* Set superuser globally for page_author.html. */}}
{{ with $superuser_name }}< meta name = "author" content = "{{ . }}" / > {{ end }}
{{/* Generate page description. */}}
{{ $desc := "" }}
{{ if .Params.summary }}
{{ $desc = .Params.summary }}
{{ else if .Params.abstract }}
{{ $desc = .Params.abstract }}
{{ else if .IsPage }}
{{ $desc = .Summary }}
{{ else if site.Params.marketing.seo.description }}
{{ $desc = site.Params.marketing.seo.description }}
{{ else }}
{{ $desc = $superuser_role }}
{{ end }}
< meta name = "description" content = "{{ $desc }}" / >
{{ range .Translations }}
< link rel = "alternate" hreflang = "{{ .Lang }}" href = "{{ .Permalink }}" / >
{{ end }}
< link rel = "alternate" hreflang = "{{ site.LanguageCode | default " en-us " } } " href = "{{ .Permalink }}" / >
{{/* Style */}}
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{{ if fileExists "assets/dist/wc.css" }}
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{{ $styles := resources.Get "dist/wc.css" }}
< link href = "{{ $styles.RelPermalink }}" rel = "stylesheet" / >
{{ else }}
{{ $options := dict "inlineImports" true }}
{{ $styles := resources.Get "css/styles.css" }}
{{ $styles = $styles | resources.PostCSS $options }}
{{ if hugo.IsProduction }}
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{{ $styles = $styles | minify | fingerprint "sha256" | resources.PostProcess }}
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{{ end }}
< link href = "{{ $styles.RelPermalink }}" rel = "stylesheet" / >
{{ end }}
< script >
/* Light/dark mode */
const defaultMode = 'system';
const setDarkMode = () => {
document.documentElement.classList.add("dark");
document.documentElement.style.colorScheme = "dark";
}
const setLightMode = () => {
document.documentElement.classList.remove("dark");
document.documentElement.style.colorScheme = "light";
}
if ("wc-color-theme" in localStorage) {
localStorage.getItem("wc-color-theme") === "dark" ? setDarkMode() : setLightMode();
} else {
defaultMode === "dark" ? setDarkMode() : setLightMode();
if (defaultMode === "system") {
window.matchMedia("(prefers-color-scheme: dark)").matches ? setDarkMode() : setLightMode();
}
}
document.addEventListener('DOMContentLoaded', function () {
const defaultMode = 'system'
const themeToggleButtons = document.querySelectorAll(".theme-toggle");
// Check previous theme settings or system theme, and update current theme button appropriately
if (
localStorage.getItem("wc-color-theme") === "dark" ||
(!("wc-color-theme" in localStorage) & &
((window.matchMedia("(prefers-color-scheme: dark)").matches & & defaultMode === "system") || defaultMode === "dark"))
) {
themeToggleButtons.forEach((el) => el.dataset.theme = "dark");
} else {
themeToggleButtons.forEach((el) => el.dataset.theme = "light");
}
// Add click event handler to the light/dark buttons
themeToggleButtons.forEach((el) => {
el.addEventListener("click", function () {
console.debug('Theme toggled');
if (localStorage.getItem("wc-color-theme")) {
if (localStorage.getItem("wc-color-theme") === "light") {
setDarkMode();
localStorage.setItem("wc-color-theme", "dark");
} else {
setLightMode();
localStorage.setItem("wc-color-theme", "light");
}
} else {
if (document.documentElement.classList.contains("dark")) {
setLightMode();
localStorage.setItem("wc-color-theme", "light");
} else {
setDarkMode();
localStorage.setItem("wc-color-theme", "dark");
}
}
el.dataset.theme = document.documentElement.classList.contains("dark") ? "dark" : "light";
});
});
// Listen for system color theme changes
window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change", (e) => {
if (defaultMode === "system" & & !("wc-color-theme" in localStorage)) {
e.matches ? setDarkMode() : setLightMode();
themeToggleButtons.forEach((el) =>
el.dataset.theme = document.documentElement.classList.contains("dark") ? "dark" : "light"
);
}
});
});
< / script >
< script >
document.addEventListener('DOMContentLoaded', function () {
// Fix Hugo task list style
let checkboxes = document.querySelectorAll('li input[type=\'checkbox\'][disabled]');
checkboxes.forEach(e => {
e.parentElement.parentElement.classList.add('task-list');
});
// Fix Hugo missing < label > around checkbox and its text (fixes Lighthouse accessibility errors)
const liNodes = document.querySelectorAll('.task-list li');
liNodes.forEach(nodes => {
let textNodes = Array.from(nodes.childNodes).filter(node => node.nodeType === 3 & & node.textContent.trim().length > 1);
if (textNodes.length > 0) {
const span = document.createElement('label');
textNodes[0].after(span); // Use first text node as label
span.appendChild(nodes.querySelector('input[type=\'checkbox\']'));
span.appendChild(textNodes[0]);
}
});
});
< / script >
{{/* Hugo Chroma Syntax Highlighter Initialization */}}
{{/* TODO: optimize to only include the Chroma CSS themes when the page has code blocks. */}}
{{ $hl_theme_light := site.Params.features.syntax_highlighter.theme_light | default "github-light" }}
{{ $hl_theme_dark := site.Params.features.syntax_highlighter.theme_dark | default "dracula" }}
{{ $hl_theme_light_path := printf "css/libs/chroma/%s.css" $hl_theme_light }}
{{ $hl_theme_dark_path := printf "css/libs/chroma/%s.css" $hl_theme_dark }}
{{ if not (fileExists (printf "assets/%s" $hl_theme_light_path)) | or (not (fileExists (printf "assets/%s" $hl_theme_dark_path))) }}
{{ errorf "Hugo Chroma themes %s.css and %s.css not found in `css/libs/chroma/`. See https://gohugo.io/commands/hugo_gen_chromastyles/" $hl_theme_light $hl_theme_dark }}
{{ else }}
{{ $hl_theme_light_css := resources.Get $hl_theme_light_path | minify }}
{{ $hl_theme_dark_css := resources.Get $hl_theme_dark_path | minify }}
< link rel = "stylesheet" href = "{{ $hl_theme_light_css.RelPermalink }}" title = "hl-light" media = "print" onload = "this.media='all'" { { if ne ( $ scr . Get " light " ) true } } disabled { { end } } >
< link rel = "stylesheet" href = "{{ $hl_theme_dark_css.RelPermalink }}" title = "hl-dark" media = "print" onload = "this.media='all'" { { if eq ( $ scr . Get " light " ) true } } disabled { { end } } >
{{ end }}
{{/* Marketing */}}
{{ with site.Params.marketing.verification.google }}
< meta name = "google-site-verification" content = "{{ . }}" / >
{{- end -}}
{{ with site.Params.marketing.verification.baidu }}
< meta name = "baidu-site-verification" content = "{{ . }}" / >
{{- end -}}
{{ with site.Params.marketing.verification.bing }}
< meta name = "msvalidate.01" content = "{{ . }}" / >
{{- end -}}
{{ partial "marketing/google_analytics" . }}
{{ partial "marketing/google_tag_manager" . }}
{{ partial "marketing/microsoft_clarity" . }}
{{ partial "marketing/baidu_tongji" . }}
{{/* RSS Feed */}}
{{ with .OutputFormats.Get "RSS" }}
< link rel = "alternate" href = "{{ .RelPermalink }}" type = "application/rss+xml" title = "{{ site.Title }}" / >
{{ end }}
{{/* Progressive Web App (PWA) Icon */}}
< link rel = "icon" type = "image/png" href = "{{ (partial " functions / get_site_icon " 32 ) . RelPermalink } } " / >
< link rel = "apple-touch-icon" type = "image/png" href = "{{ (partial " functions / get_site_icon " 180 ) . RelPermalink } } " / >
< link rel = "canonical" href = "{{ .Permalink }}" / >
{{/* Get page image for sharing. */}}
{{ $sharing_image := resources.GetMatch (path.Join "media" "sharing.*") }}
{{ $featured_image := (.Resources.ByType "image").GetMatch "*featured*" }}
{{ $avatar_image := (.Resources.ByType "image").GetMatch "avatar*" }}
{{ $has_logo := fileExists "assets/media/logo.png" | or (fileExists "assets/media/logo.svg") }}
{{ $og_image := "" }}
{{ $twitter_card := "summary_large_image" }}
{{ if (and (eq .Kind "term") $avatar_image) }}
{{/* Match image processing in About widget to prevent generating more images than necessary. */}}
{{ $og_image = ($avatar_image.Fill "270x270 Center").Permalink }}
{{ $twitter_card = "summary" }}
{{ else if $featured_image }}
{{ $og_image = $featured_image.Permalink }}
{{ else if $sharing_image }}
{{ $og_image = $sharing_image.Permalink }}
{{ else if $has_logo }}
{{ $og_image = (partial "functions/get_logo" (dict "constraint" "fit" "size" 300)).Permalink }}
{{ $twitter_card = "summary" }}
{{ else }}
{{ $og_image = (partial "functions/get_site_icon" 512).Permalink }}
{{ $twitter_card = "summary" }}
{{ end }}
{{ $scr.Set "og_image" $og_image }}{{/* Set `og_image` globally for `rss.xml`. */}}
{{ $title := "" }}
{{ with .Params.seo.title }}
{{ $title = replace . "{brand}" site.Title }}
{{ else }}
{{ $title = .Title | default site.Title }}
{{ if ne $title site.Title }}{{ $title = printf "%s | %s" $title site.Title }}{{ end }}
{{ end }}
< meta property = "twitter:card" content = "{{ $twitter_card }}" / >
{{ with site.Params.marketing.seo.twitter }}
< meta property = "twitter:site" content = "@{{ . }}" / >
< meta property = "twitter:creator" content = "@{{ . }}" / >
{{ end }}
< meta property = "og:site_name" content = "{{ site.Title }}" / >
< meta property = "og:url" content = "{{ .Permalink }}" / >
< meta property = "og:title" content = "{{ $title }}" / >
< meta property = "og:description" content = "{{ $desc }}" / >
{{- with $og_image -}}
< meta property = "og:image" content = "{{ . }}" / >
< meta property = "twitter:image" content = "{{ . }}" / >
{{- end -}}
< meta property = "og:locale" content = "{{ site.LanguageCode | default " en-us " } } " / >
{{ if .IsPage }}
{{ if not .PublishDate.IsZero }}
< meta
property="article:published_time"
content="{{ .PublishDate.Format "2006-01-02T15:04:05-07:00" | safeHTML }}"
/>
{{ else if not .Date.IsZero }}
< meta property = "article:published_time" content = "{{ .Date.Format " 2006-01-02T15:04:05-07:00 " | safeHTML } } " / >
{{ end }}
{{ if not .Lastmod.IsZero }}< meta property = "article:modified_time" content = "{{ .Lastmod.Format " 2006-01-02T15:04:05-07:00 " | safeHTML } } " > {{ end }}
{{ else }}
{{ if not .Date.IsZero }}
< meta property = "og:updated_time" content = "{{ .Date.Format " 2006-01-02T15:04:05-07:00 " | safeHTML } } " / >
{{ end }}
{{ end }}
{{ partial "jsonld/main" (dict "page" . "summary" $desc) }}
< title > {{$title}}< / title >
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{{/* Load font theme */}}
{{ $font_family := "Inter var" }}
{{ $font_file := "Inter.var.woff2" }}
{{ $font := resources.Get (printf "dist/font/%s" $font_file) }}
< style >
@font-face {
font-family: '{{$font_family}}';
font-style: normal;
font-weight: 100 900;
font-display: swap;
src: url({{ $font.RelPermalink }}) format("woff2");
}
< / style >
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{{/* Init prior to auto-chunking/bundling scripts due to Hugo concurrency issues */}}
{{- partialCached "init.html" . -}}
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{{/* Load Third-Party Libraries */}}
{{ partial "libraries.html" . }}
{{ $js_license := printf "/*! Wowchemy Tailwind UI v%s | https://wowchemy.com/ */\n" site.Data.wowchemy.version }}
{{ $js_license := $js_license | printf "%s/*! Copyright 2016-present George Cushen (https://georgecushen.com/) */\n" }}
{{ $js_license := $js_license | printf "%s/*! License: https://github.com/wowchemy/wowchemy-hugo-themes/blob/main/LICENSE.md */\n" }}
{{ $js_bundle_head := $js_license | resources.FromString "js/bundle-head.js" }}
{{ $i18n := dict "copy" (i18n "btn_copy") "copied" (i18n "btn_copied" | default "Copied") }}
{{ $js_params := dict "hugoEnvironment" hugo.Environment "i18n" $i18n }}
{{ $js_academic := resources.Get "js/wowchemy-code-copy.js" | js.Build (dict "targetPath" (printf "js/wow-core-%s.js" .Lang ) "params" $js_params) }}
{{ $js_academic := $js_academic | resources.Minify }}
{{ $js_bundle := slice $js_bundle_head $js_academic | resources.Concat (printf "js/wowchemy-%s.min.js" .Lang) }}
{{- if hugo.IsProduction -}}
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{{ $js_bundle = $js_bundle | fingerprint "sha256" }}
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{{- end -}}
< script
defer
src="{{ $js_bundle.RelPermalink }}"
integrity="{{ $js_bundle.Data.Integrity }}"
>< / script >
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{{/* EXTENSIBILITY HOOK: HEAD-END */}}
{{/* Deprecated custom_head hook */}}
{{ if templates.Exists "partials/custom_head" }}
{{ partial "custom_head" . }}
{{ end }}
{{ partial "functions/get_hook" (dict "hook" "head-end" "context" .) }}
< / head >
