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/*!
* Color mode toggler for Bootstrap's docs (https://getbootstrap.com/)
* Copyright 2011-2023 The Bootstrap Authors
* Licensed under the Creative Commons Attribution 3.0 Unported License.
* Updates for {pkgdown} by the {bslib} authors, also licensed under CC-BY-3.0.
*/
const getStoredTheme = () => localStorage.getItem('theme')
const setStoredTheme = theme => localStorage.setItem('theme', theme)
const getPreferredTheme = () => {
const storedTheme = getStoredTheme()
if (storedTheme) {
return storedTheme
}
return window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'
}
const setTheme = theme => {
if (theme === 'auto') {
document.documentElement.setAttribute('data-bs-theme', (window.matchMedia('(prefers-color-scheme: dark)').matches ? 'dark' : 'light'))
} else {
document.documentElement.setAttribute('data-bs-theme', theme)
}
}
function bsSetupThemeToggle () {
'use strict'
const showActiveTheme = (theme, focus = false) => {
var activeLabel, activeIcon;
document.querySelectorAll('[data-bs-theme-value]').forEach(element => {
const buttonTheme = element.getAttribute('data-bs-theme-value')
const isActive = buttonTheme == theme
element.classList.toggle('active', isActive)
element.setAttribute('aria-pressed', isActive)
if (isActive) {
activeLabel = element.textContent;
activeIcon = element.querySelector('span').classList.value;
}
})
const themeSwitcher = document.querySelector('#dropdown-lightswitch')
if (!themeSwitcher) {
return
}
themeSwitcher.setAttribute('aria-label', activeLabel)
themeSwitcher.querySelector('span').classList.value = activeIcon;
if (focus) {
themeSwitcher.focus()
}
}
window.matchMedia('(prefers-color-scheme: dark)').addEventListener('change', () => {
const storedTheme = getStoredTheme()
if (storedTheme !== 'light' && storedTheme !== 'dark') {
setTheme(getPreferredTheme())
}
})
window.addEventListener('DOMContentLoaded', () => {
showActiveTheme(getPreferredTheme())
document
.querySelectorAll('[data-bs-theme-value]')
.forEach(toggle => {
toggle.addEventListener('click', () => {
const theme = toggle.getAttribute('data-bs-theme-value')
setTheme(theme)
setStoredTheme(theme)
showActiveTheme(theme, true)
})
})
})
}
setTheme(getPreferredTheme());
bsSetupThemeToggle();
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