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Implement a theme switch component

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This commit is contained in:
Maciej Pędzich 2023-09-04 13:01:30 +02:00
parent fa343649de
commit 27e3a8ad0f
2 changed files with 91 additions and 1 deletions
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11
src/components/Header.astro
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@ -1,9 +1,14 @@
---
import ThemeSwitch from './ThemeSwitch.astro';
---
<header> <header>
<nav class="nav" aria-label="Main menu"> <nav class="nav" aria-label="Main menu">
<div class="nav-left"> <div class="nav-left">
<a id="logo" class="brand" href="/">Cats Of Tech</a> <a id="logo" class="brand text-primary" href="/">Cats Of Tech</a>
</div> </div>
<div class="nav-right"> <div class="nav-right">
<ThemeSwitch />
<a class="button outline" href="/submit">Submit a cat</a> <a class="button outline" href="/submit">Submit a cat</a>
</div> </div>
</nav> </nav>
@ -17,4 +22,8 @@
border-bottom-style: solid; border-bottom-style: solid;
border-bottom-color: var(--color-primary); border-bottom-color: var(--color-primary);
} }
a {
color: var(--text-grey);
}
</style> </style>

81
src/components/ThemeSwitch.astro Normal file
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@ -0,0 +1,81 @@
<button
id="theme-switch"
class="button outline icon-only"
title="Switch to dark theme"
>
<svg
id="theme-switch-dark-icon"
fill="currentColor"
viewBox="0 0 20 20"
xmlns="http://www.w3.org/2000/svg"
><path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z"
></path></svg
>
<svg
id="theme-switch-light-icon"
class="hidden"
fill="currentColor"
viewBox="0 0 20 20"
xmlns="http://www.w3.org/2000/svg"
><path
d="M10 2a1 1 0 011 1v1a1 1 0 11-2 0V3a1 1 0 011-1zm4 8a4 4 0 11-8 0 4 4 0 018 0zm-.464 4.95l.707.707a1 1 0 001.414-1.414l-.707-.707a1 1 0 00-1.414 1.414zm2.12-10.607a1 1 0 010 1.414l-.706.707a1 1 0 11-1.414-1.414l.707-.707a1 1 0 011.414 0zM17 11a1 1 0 100-2h-1a1 1 0 100 2h1zm-7 4a1 1 0 011 1v1a1 1 0 11-2 0v-1a1 1 0 011-1zM5.05 6.464A1 1 0 106.465 5.05l-.708-.707a1 1 0 00-1.414 1.414l.707.707zm1.414 8.486l-.707.707a1 1 0 01-1.414-1.414l.707-.707a1 1 0 011.414 1.414zM4 11a1 1 0 100-2H3a1 1 0 000 2h1z"
fill-rule="evenodd"
clip-rule="evenodd"></path></svg
>
</button>
<script is:inline>
const themeSwitch = document.getElementById('theme-switch');
const themeSwitchDarkIcon = document.getElementById('theme-switch-dark-icon');
const themeSwitchLightIcon = document.getElementById(
'theme-switch-light-icon'
);
if (
!localStorage.getItem('theme') &&
window.matchMedia &&
window.matchMedia('(prefers-color-scheme: dark)').matches
) {
localStorage.setItem('theme', 'dark');
}
if (localStorage.getItem('theme') === 'dark') {
document.body.classList.add('dark');
themeSwitchLightIcon.classList.remove('hidden');
themeSwitchDarkIcon.classList.add('hidden');
themeSwitch.setAttribute('title', 'Switch to light theme');
}
themeSwitch.addEventListener('click', () => {
const currentTheme = localStorage.getItem('theme');
if (currentTheme === 'dark') {
localStorage.setItem('theme', 'light');
document.body.classList.remove('dark');
themeSwitchLightIcon.classList.add('hidden');
themeSwitchDarkIcon.classList.remove('hidden');
themeSwitch.setAttribute('title', 'Switch to dark theme');
} else {
localStorage.setItem('theme', 'dark');
document.body.classList.add('dark');
themeSwitchLightIcon.classList.remove('hidden');
themeSwitchDarkIcon.classList.add('hidden');
themeSwitch.setAttribute('title', 'Switch to light theme');
}
});
</script>
<style>
svg {
width: var(--font-size);
color: var(--font-color);
}
#theme-switch {
color: var(--font-color);
}
.hidden {
display: none;
}
</style>