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functions.php
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functions.php
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<?php
define( 'SQUARECANDY_BYT_PATH', plugin_dir_path( __FILE__ ) );
define( 'SQUARECANDY_BYT_URL', plugin_dir_url( __FILE__ ) );
define( 'SQUARECANDY_BYT_VERSION', 'version-1.3.0' );
// Enqueue scripts required
if ( ! function_exists( 'squarecandy_video_scripts' ) ) :
function squarecandy_video_scripts() {
// apply fitvids
wp_enqueue_script( 'jquery' );
wp_enqueue_script( 'squarecandy-fitvids', SQUARECANDY_BYT_URL . 'dist/js/vendor/fitvids.min.js', array( 'jquery' ), SQUARECANDY_BYT_VERSION, true );
wp_enqueue_script( 'squarecandy-better-youtube', SQUARECANDY_BYT_URL . 'dist/js/better-youtube.min.js', array( 'jquery', 'squarecandy-fitvids' ), SQUARECANDY_BYT_VERSION, true );
wp_enqueue_script( 'squarecandy-magnific-popup', SQUARECANDY_BYT_URL . 'dist/js/vendor/jquery.magnific-popup.min.js', array( 'jquery' ), SQUARECANDY_BYT_VERSION, true );
wp_enqueue_style( 'squarecandy-magnific-popup-style', SQUARECANDY_BYT_URL . 'dist/css/vendor/magnific-popup.css', array(), SQUARECANDY_BYT_VERSION );
wp_enqueue_style( 'squarecandy-better-youtube-css', SQUARECANDY_BYT_URL . 'dist/css/better-youtube.min.css', array(), SQUARECANDY_BYT_VERSION );
}
add_action( 'wp_enqueue_scripts', 'squarecandy_video_scripts' );
endif;
// Add styles to the TinyMCE editor window to make it look more like your site's front end
function squarecandy_better_youtube_tinymce_styles() {
add_editor_style( SQUARECANDY_BYT_URL . 'dist/css/better-youtube.min.css' );
}
add_action( 'admin_init', 'squarecandy_better_youtube_tinymce_styles' );
function squarecandy_video_admin_scripts() {
wp_enqueue_style( 'squarecandy-better-youtube-css', SQUARECANDY_BYT_URL . 'dist/css/better-youtube.min.css', array(), SQUARECANDY_BYT_VERSION );
}
add_action( 'admin_enqueue_scripts', 'squarecandy_video_admin_scripts' );
// override default oEmbed size
function squarecandy_own_embed_size() {
$width = (int) get_option( 'sqcdy_theme_colwidth', 620 ) - 20;
$height = 0.5625 * $width; // 16:9 aspect ratio
$settings = array(
'width' => $width,
'height' => $height,
);
return $settings;
}
add_filter( 'embed_defaults', 'squarecandy_own_embed_size' );
/*
* Uses regex turn a YT url into an embed url
* https://stackoverflow.com/questions/28894116/regex-youtube-url-for-embed-with-or-without-playlist
*/
function better_youtube_get_embed_url( $url ) {
$regex = '~^(?:https?:\/\/)?(?:www\.)?(?:youtu\.be\/|youtube\.com\/(?:embed\/|v\/|watch\?v=|watch\?.+&v=))((?:\w|-){11})(?:&list=(\S+))?$~';
preg_match( $regex, $url, $matches );
if ( $matches ) {
$new_url = 'https://www.youtube.com/embed/' . rawurlencode( $matches[1] );
return $new_url;
} else {
return false;
}
}
function better_youtube_get_youtube_iframe_from_embed( $embed ) {
// use preg_match to find iframe src
preg_match( '/src="(.+?)"/', $embed, $matches );
$src = isset( $matches[1] ) ? $matches[1] : null;
return $src;
}
function better_youtube_get_youtube_playlist_from_src( $src ) {
$playlist = explode( 'list=', $src );
if ( ! isset( $playlist[1] ) ) {
$playlist = false;
} else {
$playlist = explode( '&', $playlist[1] );
$playlist = $playlist[0];
}
return $playlist;
}
function better_youtube_get_large_youtube_thumbnail( $thumbnails ) {
if ( isset( $thumbnails->maxres->url ) ) {
$large_thumb = $thumbnails->maxres->url;
} elseif ( isset( $thumbnails->standard->url ) ) {
$large_thumb = $thumbnails->standard->url;
} elseif ( isset( $thumbnails->high->url ) ) {
$large_thumb = $thumbnails->high->url;
} elseif ( isset( $thumbnails->medium->url ) ) {
$large_thumb = $thumbnails->medium->url;
} else {
$large_thumb = false;
}
return $large_thumb;
}
function better_youtube_url_parameters( $as_array = false, $autoplay = true ) {
//previus parameters: '?feature=oembed&rel=0&controls=1&modestbranding=1&hd=1&autoplay=1'
$parameters = '?&mute=0&controls=1&playsinline=1&showinfo=0&rel=0&iv_load_policy=3&modestbranding=1';
$parameters .= '&enablejsapi=1'; // enable js interaction
if ( $autoplay ) {
$parameters .= '&autoplay=1';
} else {
$parameters .= '&autoplay=0';
}
if ( $as_array ) {
$output = array();
$parameters = trim( $parameters, '?' );
$parameters = explode( '&', $parameters );
foreach ( $parameters as $parameter ) {
$values = explode( '=', $parameter );
if ( isset( $values[0] ) && isset( $values[1] ) ) {
$output[ $values[0] ] = $values[1];
}
}
$parameters = $output;
}
return $parameters;
}
function better_youtube_api_playlist( $input ) {
$playlist = better_youtube_get_youtube_playlist_from_src( $input );
if ( ! $playlist || ! defined( 'YOUTUBE_API_KEY' ) ) {
return false;
}
$post_id = get_the_id();
// Google API for building custom YouTube Playlists
require_once SQUARECANDY_BYT_PATH . 'vendor/autoload.php';
try {
$client = new Google_Client();
$client->setDeveloperKey( YOUTUBE_API_KEY );
$client->setScopes( 'https://www.googleapis.com/auth/youtube' );
$redirect = filter_var( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'], FILTER_SANITIZE_URL );
$client->setRedirectUri( $redirect );
// Define an object that will be used to make all API requests.
$service = new Google_Service_YouTube( $client );
//get all items in the playlist via API
$params = array(
'maxResults' => 49,
'playlistId' => $playlist,
);
$params = array_filter( $params );
// phpcs:disable WordPress.NamingConventions.ValidVariableName.UsedPropertyNotSnakeCase
$response = $service->playlistItems->listPlaylistItems( 'snippet', $params );
$large_thumb = better_youtube_get_large_youtube_thumbnail( $response->items[0]->snippet->thumbnails );
//set up the html for the first item (large display)
$first_id = $response->items[0]->snippet->resourceId->videoId;
$output = '<div id="playlist-' . $playlist . '" class="custom-api-playlist" data-playlist-id="' . $playlist . '" data-post-id="' . $post_id . '">';
$output .= '<div class="playlist-preview-first"><div id="player-' . $playlist . '" class="playlist-preview" data-video-index="0">
<div class="playlist-thumb" style="background-image:url(' .
$large_thumb . ')"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"><path d="M549.655 124.083c-6.281-23.65-24.787-42.276-48.284-48.597C458.781 64 288 64 288 64S117.22 64 74.629 75.486c-23.497 6.322-42.003 24.947-48.284 48.597-11.412 42.867-11.412 132.305-11.412 132.305s0 89.438 11.412 132.305c6.281 23.65 24.787 41.5 48.284 47.821C117.22 448 288 448 288 448s170.78 0 213.371-11.486c23.497-6.321 42.003-24.171 48.284-47.821 11.412-42.867 11.412-132.305 11.412-132.305s0-89.438-11.412-132.305zm-317.51 213.508V175.185l142.739 81.205-142.739 81.201z"/></svg></div>
</div></div>';
$output .= '<div class="nav-buttons"><span class="nav-button previous mfp-arrow mfp-arrow-left mfp-prevent-close" data-video-index="">Previous</span><span class="nav-button next mfp-arrow mfp-arrow-right mfp-prevent-close" data-video-index="1">Next</span></div>';
//set up the html for all items (small display)
$output .= '<div class="playlist-list"><ul>';
$i = 1;
foreach ( $response->items as $item ) {
$video_id = $item->snippet->resourceId->videoId;
if ( isset( $item->snippet->thumbnails ) ) {
if ( isset( $item->snippet->thumbnails->default->url ) ) {
$small_thumb = $item->snippet->thumbnails->default->url;
} else {
$small_thumb = better_youtube_get_large_youtube_thumbnail( $item->snippet->thumbnails );
}
$large_thumb = better_youtube_get_large_youtube_thumbnail( $item->snippet->thumbnails );
} else {
$small_thumb = false;
$large_thumb = false;
}
$index = $i - 1;
$output .= '<li class="playlist-preview" data-video-id="' . $video_id . '" data-video-index="' . $index . '" tabindex="0" role="button">' .
'<div class="playlist-small-thumb"><div class="playlist-thumb" style="background-image:url(' .
$small_thumb . ')"></div></div>' .
'<div class="playlist-num">' . $i . '</div>' .
'<div class="playlist-item-title">' . $item->snippet->title . '</div>' .
'</li>';
$i++;
}
$output .= '</ul></div>';
$output .= '</div>';
} catch ( Exception $e ) {
$error = json_decode( $e->getMessage() );
$output = '<div class="error">Error: <br>' . $error->error->message . '</div>';
}
return shortcode_unautop( $output );
}
// use to wrap youtube iframes anywhere in the code for nicer output
if ( ! function_exists( 'better_youtube_iframe' ) ) :
function better_youtube_iframe( $iframe ) {
if ( ! is_string( $iframe ) ) {
return;
}
//find iframe src
$src = better_youtube_get_youtube_iframe_from_embed( $iframe );
$playlist = better_youtube_get_youtube_playlist_from_src( $src );
if ( isset( $playlist ) && ! empty( $playlist ) && defined( 'YOUTUBE_API_KEY' ) ) {
// Google API for building custom YouTube Playlists
require_once SQUARECANDY_BYT_PATH . 'vendor/autoload.php';
try {
$client = new Google_Client();
$client->setDeveloperKey( YOUTUBE_API_KEY );
$client->setScopes( 'https://www.googleapis.com/auth/youtube' );
$redirect = filter_var( 'http://' . $_SERVER['HTTP_HOST'] . $_SERVER['PHP_SELF'], FILTER_SANITIZE_URL );
$client->setRedirectUri( $redirect );
// Define an object that will be used to make all API requests.
$service = new Google_Service_YouTube( $client );
//get all items in the playlist via API
$params = array(
'maxResults' => 49,
'playlistId' => $playlist,
);
$params = array_filter( $params );
$response = $service->playlistItems->listPlaylistItems( 'snippet', $params );
$large_thumb = better_youtube_get_large_youtube_thumbnail( $response->items[0]->snippet->thumbnails );
//set up the html for the first item (large display)
$link = 'https://www.youtube.com/embed/' .
$response->items[0]->snippet->resourceId->videoId . better_youtube_url_parameters();
$output = '<div class="custom-playlist">';
$output .= '<div class="playlist-preview-first"><a href="' . $link . '">
<div class="playlist-thumb" style="background-image:url(' .
$large_thumb . ')"><svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 576 512"><path d="M549.655 124.083c-6.281-23.65-24.787-42.276-48.284-48.597C458.781 64 288 64 288 64S117.22 64 74.629 75.486c-23.497 6.322-42.003 24.947-48.284 48.597-11.412 42.867-11.412 132.305-11.412 132.305s0 89.438 11.412 132.305c6.281 23.65 24.787 41.5 48.284 47.821C117.22 448 288 448 288 448s170.78 0 213.371-11.486c23.497-6.321 42.003-24.171 48.284-47.821 11.412-42.867 11.412-132.305 11.412-132.305s0-89.438-11.412-132.305zm-317.51 213.508V175.185l142.739 81.205-142.739 81.201z"/></svg></div>
</a></div>';
//set up the html for all items (small display)
$output .= '<div class="playlist-list"><ul>';
$i = 1;
foreach ( $response->items as $item ) {
$link = 'https://www.youtube.com/embed/' .
$item->snippet->resourceId->videoId . better_youtube_url_parameters();
if ( isset( $item->snippet->thumbnails ) ) {
$small_thumb = isset( $item->snippet->thumbnails->default->url ) ? $item->snippet->thumbnails->default->url : false;
$large_thumb = better_youtube_get_large_youtube_thumbnail( $item->snippet->thumbnails );
} else {
$small_thumb = false;
$large_thumb = false;
}
$output .= '<li><a href="' . $link . '" ' .
'rel="videogroup_' . $playlist . '" ' .
'title="' . esc_attr( $item->snippet->title ) . '" ' .
'data-large-thumb="' . $large_thumb . '">' .
'<div class="playlist-small-thumb"><div class="playlist-thumb" style="background-image:url(' .
$small_thumb . ')"></div></div>' .
'<div class="playlist-num">' . $i . '</div>' .
'<div class="playlist-item-title">' . $item->snippet->title . '</div>' .
'</a></li>';
$i++;
}
$output .= '</ul></div>';
$output .= '</div>';
} catch ( Exception $e ) {
$error = json_decode( $e->getMessage() );
$output = '<div class="error">Error: <br>' . $error->error->message . '</div>';
}
return shortcode_unautop( $output );
} else {
// add extra params to iframe src
$params = better_youtube_url_parameters( true, false );
$new_src = add_query_arg( $params, $src );
$new_src = esc_url( $new_src );
$iframe = str_replace( $src, $new_src, $iframe );
$iframe = str_replace( 'allow="autoplay; encrypted-media"', '', $iframe );
$iframe = str_replace( 'frameborder="0"', '', $iframe );
if ( ! strpos( $iframe, 'loading=' ) ) {
$iframe = str_replace( '<iframe ', '<iframe loading="lazy" ', $iframe );
}
$iframe = shortcode_unautop( $iframe );
if ( ! strpos( $iframe, 'fitvids' ) ) {
$iframe = '<div class="fitvids">' . $iframe . '</div>';
}
return $iframe;
}
}
endif;
// apply the better_youtube_iframe improvements to the automatic WordPress oembed
if ( ! function_exists( 'squarecandy_custom_youtube_querystring' ) ) :
function squarecandy_custom_youtube_querystring( $html, $url, $args ) {
if ( strpos( $html, 'youtube' ) || strpos( $html, 'youtu.be' ) ) {
$html = better_youtube_iframe( $html );
}
// apply fitvids container to vimeo
if ( strpos( $html, 'vimeo' ) && ! strpos( $html, 'fitvids' ) ) {
$html = '<div class="fitvids">' . $html . '</div>';
}
return $html;
}
add_filter( 'oembed_result', 'squarecandy_custom_youtube_querystring', 99, 3 );
add_filter( 'embed_oembed_html', 'squarecandy_custom_youtube_querystring', 99, 3 );
endif;
// Apply fitvids to the_excerpt
// Not sure why oembed_result is not being applied here already. Is there a better way to do this?
// str_replace for iframe is a bit broad and could cause issues with non-video iframe content
add_filter( 'get_the_excerpt', 'squarecandy_custom_youtube_excerpt', 999 );
function squarecandy_custom_youtube_excerpt( $content ) {
$content = str_replace( '<p><iframe', '<iframe', $content );
$content = str_replace( '</iframe></p>', '</iframe>', $content );
$content = str_replace( '<iframe', '<div class="fitvids"><iframe', $content );
$content = str_replace( '</iframe>', '</iframe></div>', $content );
return $content;
}
// fix wpautop crap
// https://wordpress.stackexchange.com/a/217304/41488
add_filter( 'the_content', 'shortcode_fix', 110 );
function shortcode_fix( $content ) {
return str_replace( '<p></a></li>', '</a></li>', $content );
}