ranger
f5feca7dfa
Two-layer "this is playing right now" visual:
(1) CSS dancing bars — four tiny vertical bars next to the "Now Playing"
label, staggered `@keyframes` pulse while audio plays. Pure CSS, no
JS dependency, tints to the user's WP admin colour scheme via
var(--wp-admin-theme-color). Driven by a single `.is-playing` class
on `.radio-player` toggled from the existing play/pause/error
handlers. Always works.
(2) Web Audio frequency visualizer (progressive upgrade) — on first play,
builds AudioContext + AnalyserNode + canvas drawing pipeline. When
the analyser starts returning real (non-zero) data, hides the bars
and shows the canvas with live frequency bars. Falls back to bars
if AudioContext is unavailable, createMediaElementSource throws, or
the analyser returns all-zeros for >2s (CORS silently blocking).
State machine on player._vizState: no-webaudio / init-failed /
cors-blocked / ok.
`<audio>` element gained `crossorigin="anonymous"` so Web Audio can read
the stream data (SomaFM serves the CORS headers).
Files: radio.php (version), inc/admin-page.php + inc/dashboard-widget.php
(.radio-player__indicator with .radio-player__bars + canvas; crossorigin
on audio), assets/css/radio.css (indicator, bars, radio-bars-dance
keyframes, canvas size), assets/js/radio.js (tryVisualizer,
startVizLoop, stopVizLoop; play/pause/error handlers wire the loop and
toggle is-playing), inc/about.php (history entry).
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
109 lines
5.7 KiB
PHP
109 lines
5.7 KiB
PHP
<?php
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/**
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* Radio — main admin page (WP Admin → Radio → My Radio).
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*
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* Uses WP-native postbox structure so the player feels like part of
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* WordPress, not a third-party widget. The dashboard widget shares
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* the same internal markup via assets/js/radio.js binding to every
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* .radio-player on the page.
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*/
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if ( ! defined( 'ABSPATH' ) ) { exit; }
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function radio_render_main_page() {
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if ( ! current_user_can( 'read' ) ) {
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wp_die( esc_html__( 'You do not have permission to view this page.', 'radio' ) );
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}
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$state = radio_get_state();
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$station = radio_find_station( $state['station_id'] );
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$stations = radio_get_stations_grouped();
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$count = count( radio_get_stations_flat() );
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?>
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<div class="wrap radio-wrap">
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<h1><?php esc_html_e( 'Radio', 'radio' ); ?></h1>
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<p class="radio-intro">
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<?php
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printf(
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/* translators: %d = number of stations */
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esc_html__( 'A tab of background music for your WordPress admin. %d hand-curated SomaFM stations across 10 genres — free, no ads, no tracking.', 'radio' ),
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(int) $count
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);
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?>
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</p>
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<div class="postbox">
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<div class="postbox-header">
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<h2 class="hndle"><?php esc_html_e( 'Player', 'radio' ); ?></h2>
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</div>
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<div class="inside">
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<div class="radio-player" data-radio-surface="main">
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<div class="radio-player__now">
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<span class="radio-player__indicator" aria-hidden="true">
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<span class="radio-player__bars"><span></span><span></span><span></span><span></span></span>
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<canvas class="radio-player__viz" data-radio-viz hidden></canvas>
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</span>
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<span class="radio-player__label"><?php esc_html_e( 'Now Playing', 'radio' ); ?></span>
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<span class="radio-player__station-name" data-radio-name><?php echo esc_html( $station['name'] ); ?></span>
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<span class="radio-player__station-genre" data-radio-genre><?php echo esc_html( $station['genre'] ); ?></span>
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<p class="radio-player__station-desc" data-radio-desc><?php echo esc_html( $station['description'] ); ?></p>
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<p class="radio-player__track" data-radio-track hidden></p>
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</div>
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<div class="radio-player__controls">
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<button type="button" class="button button-primary radio-player__play" data-radio-play>
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<span class="radio-player__play-glyph" data-radio-play-glyph aria-hidden="true">▶</span>
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<span data-radio-play-label><?php esc_html_e( 'Play', 'radio' ); ?></span>
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</button>
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<div class="radio-player__volume">
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<button type="button" class="radio-player__mute" data-radio-mute aria-label="<?php esc_attr_e( 'Mute', 'radio' ); ?>">
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<span class="dashicons dashicons-controls-volumeon" aria-hidden="true"></span>
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</button>
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<input type="range" min="0" max="100" value="<?php echo esc_attr( (int) round( $state['volume'] * 100 ) ); ?>" data-radio-volume aria-label="<?php esc_attr_e( 'Volume', 'radio' ); ?>">
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<span class="radio-player__volume-pct" data-radio-volume-pct><?php echo esc_html( (int) round( $state['volume'] * 100 ) ); ?>%</span>
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</div>
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</div>
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<div class="radio-player__station-select">
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<label for="radio-station-main"><?php esc_html_e( 'Station', 'radio' ); ?></label>
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<select id="radio-station-main" data-radio-station>
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<?php foreach ( $stations as $genre => $entries ) :
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if ( empty( $entries ) ) { continue; }
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?>
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<optgroup label="<?php echo esc_attr( $genre ); ?>">
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<?php foreach ( $entries as $entry ) : ?>
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<option value="<?php echo esc_attr( $entry['id'] ); ?>" data-url="<?php echo esc_attr( $entry['url'] ); ?>" data-desc="<?php echo esc_attr( $entry['description'] ); ?>" data-genre="<?php echo esc_attr( $entry['genre'] ); ?>" <?php selected( $entry['id'], $state['station_id'] ); ?>>
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<?php echo esc_html( $entry['name'] ); ?>
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</option>
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<?php endforeach; ?>
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</optgroup>
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<?php endforeach; ?>
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</select>
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</div>
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<div class="radio-player__error" data-radio-error hidden></div>
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<audio data-radio-audio preload="none" crossorigin="anonymous"></audio>
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</div>
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</div>
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</div>
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<p class="radio-player__credit radio-player__credit--main description">
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<?php
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printf(
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wp_kses(
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/* translators: %s = link to somafm.com */
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__( 'Stations and streams provided by %s — an independent, listener-supported, commercial-free internet radio network. Please consider supporting them.', 'radio' ),
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array( 'a' => array( 'href' => true, 'target' => true, 'rel' => true ) )
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),
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'<a href="https://somafm.com/" target="_blank" rel="noopener">SomaFM</a>'
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);
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?>
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</p>
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</div>
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<?php
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}
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