nboehr

<p>Google offers some HTML snippets to embed your public Google Calendar into your website. These are great, but as soon as you want to make a few adjustments to the styling, that goes beyond changing some colors, they’re useless. Because of that I wrote a very simple widget, that fetches events from a public google calendar and nicely displays them in form of a widget, allowing you to apply all kinds of CSS. The source code should be quite easy to modify.</p>
<h3>License</h3>
<p>The plugin is published under the GPL v3. Previous versions (<= 0.2) did not<br />
mention a license; this has been fixed in the latest trunk and will be<br />
included in the next release version.</p>
<h3>Contributors</h3>
<ul>
<li>pemrich (https://profiles.wordpress.org/pemrich/)</li>
</ul>


Simple Google Calendar Widget

Displays events from a public Google Calendar as a sidebar widget.

rstake

sdaweb

<p>SDAweb Calendar Sync turns any Google Calendar into a polished, on-brand events display on your WordPress site — without duplicate data entry. Keep scheduling in Google Calendar the way you already do; the plugin pulls those events in and keeps your site in sync automatically.</p>
<p>It’s for anyone who already runs their events in Google Calendar and wants them to look like a native part of their site instead of an embedded iframe — businesses, teams, venues, clubs, communities, and organisations of every kind.</p>
<p>Insert a calendar with a Gutenberg block, a shortcode, or a classic widget. All three share one render pipeline, so the output is identical however you add it.</p>
<h4>Six ways to show your calendar</h4>
<ul>
<li><strong>List / Agenda</strong> — chronological, optionally grouped by day, week, or month</li>
<li><strong>Month grid</strong> — classic 7×6 calendar with multi-day event ribbons spanning across cells, today highlight (cell or whole-column style), optional ISO 8601 week-number column, and per-feed pastel chips</li>
<li><strong>Card grid</strong> — upcoming events as styled cards, responsive</li>
<li><strong>Week</strong> — 7 day columns, today highlighted</li>
<li><strong>Day</strong> — single-day agenda</li>
<li><strong>Mini-month</strong> — compact dot-density grid for sidebars and widgets, with a tap-to-expand event panel showing today + next upcoming events and a “Load more” button</li>
</ul>
<p>Switch between views with one setting, or expose a visitor-facing view-toggle pill so visitors can switch themselves. Under the hood every view shares the same data layer, the same CSS-variable system, and the same accessibility baseline.</p>
<h4>Smart UX out of the box</h4>
<ul>
<li><strong>Hover popover on event chips</strong> (Month, Week, Mini) — a floating card with date, time, location, calendar, recurrence summary, and a click-through link, so visitors get the full event detail without leaving the page. Desktop hover + keyboard focus only; touch users keep direct click-through.</li>
<li><strong>Mobile auto-degrade Month <span aria-hidden="true" class="wp-exclude-emoji">→</span> Mini</strong> — below ~600px the full grid is replaced by the compact Mini-month view, so phone visitors get a clean, tappable calendar with no extra work from you. One wrapper, two layouts, no JS swap.</li>
<li><strong>ICS subscribe dropdown</strong> — one tap to add your events to a visitor’s own calendar: Google Calendar (web), Apple Calendar / Outlook (webcal), Android Google Calendar app (intent), and Copy-link with toast confirmation. Mobile becomes a bottom sheet.</li>
<li><strong>Live search</strong> + <strong>jump-to-date picker</strong> — optional chrome controls so visitors can filter or navigate quickly.</li>
<li><strong>Multi-day event ribbons</strong> — week-spanning bars with arrow indicators when an event continues beyond the visible row.</li>
<li><strong>Recurring event indicator</strong> — small ↻ icon with a plain-language cadence summary in the tooltip (“Repeats weekly until 31 December 2026”).</li>
<li><strong>Per-display locale override</strong> — render a calendar in a specific language (e.g. nb_NO) even when the site language differs, so you can run a localized calendar on a site that’s in another language.</li>
</ul>
<h4>Two authentication paths</h4>
<ul>
<li><strong>API key</strong> — for calendars marked “Make available to public” in Google Calendar. One field, paste, done.</li>
<li><strong>Service Account JSON</strong> — for <strong>private</strong> calendars without per-user OAuth. Upload the JSON, share the calendar with the service-account email, you’re set.</li>
</ul>
<p>Credentials are encrypted at rest using a key derived from your site’s authentication salt. They are never echoed back into the admin UI — only the masked value and (for service accounts) the public service-account email are shown.</p>
<h4>Theme-aware out of the box</h4>
<p>The plugin reads your active theme’s <code>theme.json</code> color palette and uses your <code>primary</code>, <code>accent</code>, <code>foreground</code>, and <code>background</code> colors automatically. Per-display overrides let you set custom primary, accent, today-highlight, and link colors and force light/dark mode without touching code. Every design token is exposed as a CSS custom property so a developer can fully restyle the calendar from their theme stylesheet.</p>
<h4>Five built-in theme presets</h4>
<p>One-click coordinated colour bundles: <strong>Default</strong> (clean blue), <strong>Warm earth</strong> (cream + deep red), <strong>High contrast</strong> (solid black on white for AAA-stricter sites), <strong>Forest</strong> (deep green), <strong>Sunset</strong> (warm coral + amber).</p>
<h4>Accessibility built in</h4>
<p>WCAG 2.2 AA baseline with several AAA touches:</p>
<ul>
<li>Live contrast warnings on every colour picker — the admin UI shows the WCAG ratio against both light and dark surfaces with pass/fail markers as you choose colours</li>
<li>Automatic high-contrast overlay via <code>prefers-contrast: more</code></li>
<li>Focus-visible halo: a 4px white ring behind the primary outline so focus stays visible against any chip background</li>
<li><code>prefers-reduced-motion</code> honored everywhere</li>
<li>ARIA roles and labels on the month grid, navigation, popovers, and view-toggle</li>
<li>Semantic HTML throughout</li>
<li>RTL-aware via CSS logical properties</li>
<li>Tabular numerals for day numbers and time labels so single- and double-digit values don’t drift</li>
</ul>
<h4>Built for the WordPress.org standard</h4>
<ul>
<li>Block editor first-class — server-side rendered, ServerSideRender preview, all the standard <code>InspectorControls</code></li>
<li>Shortcode and classic widget on the same render pipeline</li>
<li>No bundled core libraries (no jQuery on front-end, no Guzzle, no Carbon, no Monolog)</li>
<li>No third-party authentication relay — your credentials only ever talk directly to googleapis.com</li>
<li>Translation ready via translate.wordpress.org once the plugin is published and indexed (no bundled <code>.po</code>/<code>.mo</code> — WordPress auto-loads locale files into <code>wp-content/languages/plugins/</code> per the WP Plugin Handbook), plurals via <code>_n()</code>, JS strings via <code>wp_localize_script</code></li>
<li>Free and GPLv2</li>
</ul>
<h4>For developers</h4>
<p>Extension hooks are documented in <code>docs/hooks.md</code> inside the plugin folder. The first-release set includes filters for event data, event URLs, query args, cache TTL, render output, palette resolution, plus actions for refresh and uninstall lifecycle.</p>
<h3>Third-Party Services</h3>
<p>This plugin connects to the Google Calendar API to retrieve events from calendars you configure.</p>
<ul>
<li>Service: Google Calendar API v3</li>
<li>Website: https://developers.google.com/calendar</li>
<li>Terms of Service: https://developers.google.com/terms</li>
<li>Privacy Policy: https://policies.google.com/privacy</li>
</ul>
<p>Data sent: the calendar ID(s) you configure, plus either your API key or a JSON Web Token signed with your service account credentials. Event data is returned to your server and cached locally as WordPress transients. No event data is sent to any third party.</p>
<p>The ICS subscribe feature, when enabled, links visitors directly to Google’s public iCal feed (<code>calendar.google.com/calendar/ical/.../public/basic.ics</code>) — the plugin does not proxy or store that data.</p>


SDAweb Calendar Sync for Google Calendar

Display your Google Calendar events on your site in six views. Theme-aware, accessible, mobile-ready, no duplicate entry.

Simple Google Calendar Widget vs SDAweb Calendar Sync for Google Calendar