Files
hextra_mirror/layouts/_partials/components/giscus.html
Ludovic Fernandez 546bcc2e26 fix(giscus): theme and language (#783)
* fix(giscuss): system theme

* fix(giscuss): language

* fix(giscuss): theme switching

* chore: remove confusing comment

* fix(giscuss): use a uniq ID

* chore: remove useless function

* chore: use extra language code

* chore: add comment about hash

* Update layouts/_partials/components/giscus.html

---------

Co-authored-by: Xin <5097752+imfing@users.noreply.github.com>
2025-08-24 22:06:14 +01:00

86 lines
2.9 KiB
HTML

{{- $lang := site.Language.Lang | default `en` -}}
{{- if hasPrefix $lang "zh" -}}
{{- /* See: https://github.com/giscus/giscus/tree/main/locales */}}
{{- $lang = site.Language.LanguageCode | default `zh-CN` -}}
{{- end -}}
{{- with site.Params.comments.giscus -}}
<script>
function getGiscusTheme() {
const giscusTheme = '{{ .theme }}';
if (giscusTheme === 'light' || giscusTheme === 'dark') {
return giscusTheme;
}
const hugoTheme = localStorage.getItem("color-theme");
if (hugoTheme === 'light' || hugoTheme === 'dark') {
return hugoTheme;
}
if (hugoTheme === 'system') {
return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
}
const defaultTheme = '{{ site.Params.theme.default }}';
if (defaultTheme === 'light' || defaultTheme === 'dark') {
return defaultTheme;
}
return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
}
function setGiscusTheme() {
const iframe = document.querySelector('iframe.giscus-frame');
if (!iframe) return;
const msg = {
giscus: {
setConfig: {
theme: getGiscusTheme(),
},
},
}
iframe.contentWindow.postMessage(msg, 'https://giscus.app');
}
document.addEventListener('DOMContentLoaded', function () {
const giscusAttributes = {
"src": "https://giscus.app/client.js",
"data-repo": "{{ .repo }}",
"data-repo-id": "{{ .repoId }}",
"data-category": "{{ .category }}",
"data-category-id": "{{ .categoryId }}",
"data-mapping": "{{ .mapping | default `pathname` }}",
"data-strict": "{{ (string .strict) | default 0 }}",
"data-reactions-enabled": "{{ (string .reactionsEnabled) | default 1 }}",
"data-emit-metadata": "{{ (string .emitMetadata) | default 0 }}",
"data-input-position": "{{ .inputPosition | default `top` }}",
"data-theme": getGiscusTheme(),
"data-lang": "{{ .lang | default $lang }}",
"crossorigin": "anonymous",
"async": "",
};
// Dynamically create script tag
const giscusScript = document.createElement("script");
Object.entries(giscusAttributes).forEach(([key, value]) => giscusScript.setAttribute(key, value));
// Random hash id to avoid conflicts with titles inside pages.
document.getElementById('giscus-hextra-bb112b9f807c37c1752e5da6a1652a29').appendChild(giscusScript);
// Listen for system theme changes
window.matchMedia("(prefers-color-scheme: dark)").addEventListener("change", setGiscusTheme);
// Update giscus theme when theme switcher is clicked
const themeToggleOptions = document.querySelectorAll(".hextra-theme-toggle-options p");
if (themeToggleOptions) {
themeToggleOptions.forEach(toggle => toggle.addEventListener('click', setGiscusTheme));
}
});
</script>
<div id="giscus-hextra-bb112b9f807c37c1752e5da6a1652a29"></div>
{{- else -}}
{{ warnf "giscus is not configured" }}
{{- end -}}