90 lines
3.1 KiB
HTML
90 lines
3.1 KiB
HTML
{{ $colorTheme := "light" }}
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{{ $colorThemeSwitcher := false }}
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{{ if and (isset site.Params "colortheme") (ne site.Params.colortheme "") }}
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{{ $colorTheme = site.Params.colortheme | lower }}
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{{ end }}
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{{ if and (isset site.Params "colorthemeswitcher") }}
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{{ $colorThemeSwitcher = site.Params.colorthemeswitcher }}
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{{ end }}
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{{ if or (eq $colorThemeSwitcher true) (eq $colorTheme "auto") }}
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{{ if site.Params.colorthemeswitcher }}
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<div class="theme-switcher">
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{{ partial "font-awesome.html" (dict "iconName" "theme-light" "custom" false) }}
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</div>
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{{ end }}
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<script>
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const STORAGE_KEY = 'user-color-scheme'
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const defaultTheme = "{{ $colorTheme }}"
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let currentTheme
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let switchButton
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let autoDefinedScheme = window.matchMedia('(prefers-color-scheme: dark)')
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function switchTheme(e) {
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currentTheme = (currentTheme === 'dark') ? 'light' : 'dark';
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if (localStorage) localStorage.setItem(STORAGE_KEY, currentTheme);
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document.documentElement.setAttribute('data-theme', currentTheme);
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changeGiscusTheme(currentTheme);
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document.body.dispatchEvent(new CustomEvent(currentTheme + "-theme-set"));
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}
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const autoChangeScheme = e => {
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currentTheme = e.matches ? 'dark' : 'light'
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document.documentElement.setAttribute('data-theme', currentTheme);
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changeGiscusTheme(currentTheme);
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document.body.dispatchEvent(new CustomEvent(currentTheme + "-theme-set"));
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}
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document.addEventListener('DOMContentLoaded', function () {
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switchButton = document.querySelector('.theme-switcher')
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currentTheme = detectCurrentScheme()
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if (currentTheme === 'auto') {
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autoChangeScheme(autoDefinedScheme);
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autoDefinedScheme.addListener(autoChangeScheme);
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} else {
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document.documentElement.setAttribute('data-theme', currentTheme)
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}
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if (switchButton) {
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switchButton.addEventListener('click', switchTheme, false)
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}
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showContent();
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})
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function detectCurrentScheme() {
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if (localStorage !== null && localStorage.getItem(STORAGE_KEY)) {
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return localStorage.getItem(STORAGE_KEY)
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}
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if (defaultTheme) {
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return defaultTheme
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}
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return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light';
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}
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function showContent() {
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document.body.style.visibility = 'visible';
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document.body.style.opacity = 1;
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}
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function changeGiscusTheme (theme) {
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function sendMessage(message) {
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const iframe = document.querySelector('iframe.giscus-frame');
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if (!iframe) return;
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iframe.contentWindow.postMessage({ giscus: message }, 'https://giscus.app');
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}
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sendMessage({
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setConfig: {
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theme: theme
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}
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});
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}
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</script>
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{{ end }}
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