Public Signal Video Feed

Public Signal Video Feed is a YouTube playlist feed plugin for WordPress. It provides a live block editor preview, a lightweight shortcode, transient-based API caching, responsive grid and list layouts, and a keyboard-friendly modal player. Features include:

• Video Feed block with a live editor preview.
• YouTube playlist feed shortcode.
• Grid and list layouts.
• Optional video limit and channel display controls.
• Cached API responses to reduce quota usage.
• Frontend fallback link and playlist embed when API data is unavailable.
• Keyboard-friendly modal playback with focus management.
• Global visual defaults with optional per-block color overrides.

This plugin requires a YouTube Data API v3 key supplied by the site administrator. External Services Public Signal Video Feed relies on services provided by Google and YouTube to retrieve and display playlist content. When an uncached feed or block editor preview is rendered, the site sends the configured YouTube Data API key, the playlist identifier, and a pagination token when needed to the YouTube Data API endpoint at https://www.googleapis.com/youtube/v3/playlistItems. The API response is normalized and stored temporarily in WordPress transients for the configured freshness period, with up to 24 additional hours of retention for recovery when a refresh fails. Playlist thumbnail images load in a visitor's browser from the YouTube or Google-hosted image URLs returned by the API. The normal YouTube iframe player loads after a visitor selects a video. If API playlist data is unavailable, a fallback YouTube playlist iframe may load when the page loads. These browser requests can transmit technical information such as the visitor's IP address, browser user agent, referrer, and cookies to Google or YouTube. Use of these services is subject to Google's terms and privacy policies:

• YouTube Data API: https://developers.google.com/youtube/v3
• Google APIs Terms of Service: https://developers.google.com/terms
• YouTube API Services Terms of Service: https://developers.google.com/youtube/terms/api-services-terms-of-service
• Google Privacy Policy: https://policies.google.com/privacy

1. Upload the public-signal-video-feed folder to the /wp-content/plugins/ directory, or install the plugin ZIP through the WordPress Plugins screen.
2. Activate Public Signal Video Feed from the Plugins screen.
3. Go to Settings > Video Feed.
4. Add a YouTube Data API v3 key.
5. Add the Video Feed block or shortcode to a page or post.

Block usage:

1. Add the Video Feed block in the block editor.
2. Enter a YouTube playlist URL in the block settings.
3. Choose a grid or list layout.
4. Optionally set a video limit or hide the channel name.
5. Optionally open the Styles tab to override card, title, secondary-text, or border colors for that block.

Basic shortcode: [public_signal_video_feed url="https://www.youtube.com/playlist?list=PLAYLIST_ID"] Optional shortcode attributes: layout="grid" or layout="list" limit="6" show_channel="true" or show_channel="false" Example: [public_signal_video_feed url="https://www.youtube.com/playlist?list=PLAYLIST_ID" layout="grid" limit="6" show_channel="true"]

1.0.3

• Fixed outdated JavaScript files in version 1.0.2 that prevented the video player modal from displaying correctly.

1.0.2

• Improved accessibility, keyboard navigation, and responsive video display.
• Improved cache reliability and handling of plugin setting changes.
• Improved settings validation and localized video timestamps.
• Improved Multisite uninstall cleanup.

1.0.1

• Improved compatibility with the fully iframed block editor in WordPress 7.1.
• Tested with WordPress 7.1.

1.0.0

• Initial release.