37 lines
No EOL
1.6 KiB
JavaScript
37 lines
No EOL
1.6 KiB
JavaScript
(function(){
|
||
|
||
// Select the button
|
||
const btnTheme = document.getElementById('theme');
|
||
// Check for dark mode preference at the OS level
|
||
const prefersDarkScheme = window.matchMedia('(prefers-color-scheme: dark)');
|
||
|
||
// Get the user's theme preference from local storage, if it's available
|
||
const currentTheme = localStorage.getItem('theme');
|
||
// If the user's preference in localStorage is dark...
|
||
if (currentTheme == 'dark') {
|
||
// ...let's toggle the .dark-theme class on the body
|
||
document.body.classList.toggle('dark-theme');
|
||
// Otherwise, if the user's preference in localStorage is light...
|
||
} else if (currentTheme == 'light') {
|
||
// ...let's toggle the .light-theme class on the body
|
||
document.body.classList.toggle('light-theme');
|
||
}
|
||
|
||
// Listen for a click on the button
|
||
btnTheme.addEventListener('click', function() {
|
||
// If the user's OS setting is dark and matches our .dark-theme class...
|
||
if (prefersDarkScheme.matches) {
|
||
// ...then toggle the light mode class
|
||
document.body.classList.toggle('light-theme');
|
||
// ...but use .dark-theme if the .light-theme class is already on the body,
|
||
var theme = document.body.classList.contains('light-theme') ? 'light' : 'dark';
|
||
} else {
|
||
// Otherwise, let's do the same thing, but for .dark-theme
|
||
document.body.classList.toggle('dark-theme');
|
||
var theme = document.body.classList.contains('dark-theme') ? 'dark' : 'light';
|
||
}
|
||
// Finally, let's save the current preference to localStorage to keep using it
|
||
localStorage.setItem('theme', theme);
|
||
});
|
||
|
||
})(); |