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Draft: porting over https://github.com/just-the-docs/just-the-docs/pull/1086/

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This commit is contained in:
Matthew Wang
2023-08-22 19:57:16 -04:00
parent 8d8b444b46
commit f2657db1d1
10 changed files with 164 additions and 13 deletions
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56
assets/js/just-the-docs.js
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@@ -41,7 +41,7 @@ function initNav() {
const siteNav = document.getElementById('site-nav');
const mainHeader = document.getElementById('main-header');
const menuButton = document.getElementById('menu-button');
disableHeadStyleSheet();
jtd.addEvent(menuButton, 'click', function(e){
@@ -72,7 +72,7 @@ function initNav() {
}
// The page-specific <style> in the <head> is needed only when JS is disabled.
// Moreover, it incorrectly overrides dynamic stylesheets set by setTheme(theme).
// Moreover, it incorrectly overrides dynamic stylesheets set by setTheme(theme).
// The page-specific stylesheet is assumed to have index 1 in the list of stylesheets.
function disableHeadStyleSheet() {
@@ -465,13 +465,56 @@ function searchLoaded(index, docs) {
// Switch theme
jtd.getTheme = function() {
var cssFileHref = document.querySelector('[rel="stylesheet"]').getAttribute('href');
var cssFile = document.querySelector('[rel="stylesheet"]');
if(cssFile.hasAttribute('media')) return 'auto';
var cssFileHref = cssFile.getAttribute('href');
return cssFileHref.substring(cssFileHref.lastIndexOf('-') + 1, cssFileHref.length - 4);
}
jtd.setTheme = function(theme) {
var cssFile = document.querySelector('[rel="stylesheet"]');
cssFile.setAttribute('href', '{{ "assets/css/just-the-docs-" | relative_url }}' + theme + '.css');
function createThemeStylesheet(theme, media) {
var link = document.createElement('link');
link.rel = 'stylesheet';
link.type = 'text/css';
link.href = "{{ '/assets/css/just-the-docs-*.css' | relative_url }}".replace("*",theme);
if(media) link.media = media;
return link;
}
var cssFiles = [...document.querySelectorAll('[rel="stylesheet"]')];
if(theme === "auto") {
cssFiles.at(-1).insertAdjacentElement('afterend', createThemeStylesheet('light', '(prefers-color-scheme: light)'));
cssFiles.at(-1).insertAdjacentElement('afterend', createThemeStylesheet('dark', '(prefers-color-scheme: dark)'));
} else {
cssFiles.at(-1).insertAdjacentElement('afterend', createThemeStylesheet(theme || "default"));
}
setTimeout(() => cssFiles.forEach(it => it.remove()), 100);
}
jtd.switchThemeButton = function(button, event) {
{% if site.color_scheme_options and site.color_scheme_options.switch_options %}
const themes = {{ site.color_scheme_options.switch_options | jsonify }};
{% else %}
const themes = ["auto", "light", "dark"];
{% endif %}
var currentTheme = jtd.getTheme();
var nextTheme = themes[(themes.indexOf(currentTheme)+1)%themes.length];
jtd.setTheme(nextTheme);
button.getElementsByTagName('svg')[0].getElementsByTagName('use')[0].setAttribute('href',`#svg-${nextTheme}`);
{% if site.color_scheme_options and site.color_scheme_options.enable_localstorage %}
window.localStorage.setItem('theme', nextTheme);
{% endif %}
}
function initSwitchThemeButton() {
var buttons = [...document.getElementsByClassName("color-scheme-switch-theme-button")];
{% if site.color_scheme_options and site.color_scheme_options.enable_localstorage != false %}
theme = window.localStorage.getItem('theme');
if(theme != null){
buttons.forEach(button => button.getElementsByTagName('svg')[0].getElementsByTagName('use')[0].setAttribute('href',`#svg-${theme}`));
}
{% endif %}
buttons.forEach(button => jtd.addEvent(button, 'click', event => jtd.switchThemeButton(button, event)));
}
// Note: pathname can have a trailing slash on a local jekyll server
@@ -533,6 +576,9 @@ jtd.onReady(function(){
{%- if site.search_enabled != false %}
initSearch();
{%- endif %}
{%- if site.enable_switch_color_scheme != false %}
initSwitchThemeButton();
{%- endif %}
activateNav();
scrollNav();
});