40 lines
1.4 KiB
JavaScript
40 lines
1.4 KiB
JavaScript
// in Firefox we need to add a new css style with document.write rather than modifying the href
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// of the existing one, otherwise the screen will flash white while loading on dark themes
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var theme_css_elem = document.getElementById('theme_css');
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if(localStorage.getItem('theme') === 'dark'){
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var clone = theme_css_elem.cloneNode(false);
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clone.href = "css/themes/dark.css";
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theme_css_elem.remove();
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document.write(clone.outerHTML);
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}else if(localStorage.getItem('theme') === 'light'){
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var clone = theme_css_elem.cloneNode(false);
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clone.href = "css/themes/light.css";
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theme_css_elem.remove();
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document.write(clone.outerHTML);
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}
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window.addEventListener("load", function(event){update_toggle_button();}, false);
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function update_toggle_button(){
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var elem = document.getElementById('theme_css');
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var button = document.getElementById('change-theme-button');
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button.style.display = "";
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if(elem.href.endsWith('light.css')){
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button.getElementsByTagName('img')[0].src = 'images/theme-switcher-moon.svg';
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}else if(elem.href.endsWith('dark.css')){
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button.getElementsByTagName('img')[0].src = 'images/theme-switcher-sun.svg';
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}
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}
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function toggle_theme(){
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var elem = document.getElementById('theme_css');
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if(elem.href.endsWith('light.css')){
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elem.href = "css/themes/dark.css";
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localStorage.setItem('theme', 'dark');
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}else if(elem.href.endsWith('dark.css')){
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elem.href = "css/themes/light.css";
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localStorage.setItem('theme', 'light');
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}
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update_toggle_button();
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}
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