From 5247a23cbe534d79cdf4abe4c200a351dddc5dc2 Mon Sep 17 00:00:00 2001
From: Nate Moore <natemoo-re@users.noreply.github.com>
Date: Thu, 27 May 2021 09:16:14 -0500
Subject: Example: Docs template (#226)

* fix: markdown issues

* wip: add docs example

* example: update doc template

* chore: credit Steph for AvatarList

* chore: align footer to bottom viewport

* chore: feeback R1

* fix: font fallback in firefox

* fix merge conflicts

* fix: add default value to headers

* chore: fix doc example
---
 examples/doc/src/components/ThemeToggle.tsx | 65 +++++++++++++++++++++++++++++
 1 file changed, 65 insertions(+)
 create mode 100644 examples/doc/src/components/ThemeToggle.tsx

(limited to 'examples/doc/src/components/ThemeToggle.tsx')

diff --git a/examples/doc/src/components/ThemeToggle.tsx b/examples/doc/src/components/ThemeToggle.tsx
new file mode 100644
index 000000000..d26d94d69
--- /dev/null
+++ b/examples/doc/src/components/ThemeToggle.tsx
@@ -0,0 +1,65 @@
+import type { FunctionalComponent } from 'preact';
+import { h, Fragment } from 'preact';
+import { useState, useEffect } from 'preact/hooks';
+
+const themes = [
+  'system',
+  'light',
+  'dark'
+]
+
+const icons = [
+  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" fill="currentColor">
+  <path fill-rule="evenodd" d="M3 5a2 2 0 012-2h10a2 2 0 012 2v8a2 2 0 01-2 2h-2.22l.123.489.804.804A1 1 0 0113 18H7a1 1 0 01-.707-1.707l.804-.804L7.22 15H5a2 2 0 01-2-2V5zm5.771 7H5V5h10v7H8.771z" clip-rule="evenodd" />
+</svg>,
+  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" fill="currentColor">
+    <path fillRule="evenodd" 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" clipRule="evenodd" />
+  </svg>,
+  <svg xmlns="http://www.w3.org/2000/svg" width="20" height="20" viewBox="0 0 20 20" fill="currentColor">
+    <path d="M17.293 13.293A8 8 0 016.707 2.707a8.001 8.001 0 1010.586 10.586z" />
+  </svg>
+]
+
+const ThemeToggle: FunctionalComponent = () => {
+  const [theme, setTheme] = useState(themes[0]);
+
+  useEffect(() => {
+    const user = localStorage.getItem('theme')
+    if (!user) return;
+    setTheme(user);
+  }, [])
+  
+  useEffect(() => {
+    const root = document.documentElement;
+    if (theme === 'system') {
+      localStorage.removeItem('theme');
+      if (window.matchMedia('(prefers-color-scheme: dark)').matches) {
+        root.classList.add('theme-dark');
+      } else {
+        root.classList.remove('theme-dark');
+      }
+    } else {
+      localStorage.setItem('theme', theme);
+      if (theme === 'light') {
+        root.classList.remove('theme-dark');
+      } else {
+        root.classList.add('theme-dark');
+      }
+    }
+  }, [theme])
+
+  return <div id="theme-toggle">
+    {themes.map((t, i) => {
+      const icon = icons[i];
+      const checked = t === theme;
+      return (
+        <label className={checked ? 'checked' : ''}>
+          {icon}
+          <input type="radio" name="theme-toggle" checked={checked} value={t} title={`Use ${t} theme`} aria-label={`Use ${t} theme`} onChange={() => setTheme(t)} />
+        </label>
+      );
+    })}
+  </div>
+}
+
+export default ThemeToggle;
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