init
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emmymayo
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<?php
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/**
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* Podcast Player Block.
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*
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* @since 8.4.0
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*
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* @package automattic/jetpack
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*/
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namespace Automattic\Jetpack\Extensions\Podcast_Player;
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use Automattic\Jetpack\Blocks;
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use Jetpack_Gutenberg;
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use Jetpack_Podcast_Helper;
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if ( ! class_exists( 'Jetpack_Podcast_Helper' ) ) {
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require_once JETPACK__PLUGIN_DIR . '/_inc/lib/class-jetpack-podcast-helper.php';
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}
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/**
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* Registers the block for use in Gutenberg. This is done via an action so that
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* we can disable registration if we need to.
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*/
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function register_block() {
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Blocks::jetpack_register_block(
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__DIR__,
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array(
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'render_callback' => __NAMESPACE__ . '\render_block',
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// Since Gutenberg #31873.
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'style' => 'wp-mediaelement',
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)
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);
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}
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add_action( 'init', __NAMESPACE__ . '\register_block' );
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/**
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* Returns the error message wrapped in HTML if current user
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* has the capability to edit the post. Public visitors will
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* never see errors.
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*
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* @param string $message The error message to display.
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* @return string
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*/
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function render_error( $message ) {
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// Suppress errors for users unable to address them.
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if ( ! current_user_can( 'edit_posts' ) ) {
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return '';
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}
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return '<p>' . esc_html( $message ) . '</p>';
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}
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/**
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* Podcast Player block registration/dependency declaration.
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*
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* @param array $attributes Array containing the Podcast Player block attributes.
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* @param string $content Fallback content - a direct link to RSS, as rendered by save.js.
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* @return string
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*/
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function render_block( $attributes, $content ) {
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// Don't render an interactive version of the block outside the frontend context.
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if ( ! jetpack_is_frontend() ) {
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return $content;
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}
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// Test for empty URLS.
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if ( empty( $attributes['url'] ) ) {
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return render_error( __( 'No Podcast URL provided. Please enter a valid Podcast RSS feed URL.', 'jetpack' ) );
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}
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// Test for invalid URLs.
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if ( ! wp_http_validate_url( $attributes['url'] ) ) {
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return render_error( __( 'Your podcast URL is invalid and couldn\'t be embedded. Please double check your URL.', 'jetpack' ) );
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}
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if ( ! empty( $attributes['selectedEpisodes'] ) ) {
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$guids = array_map(
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function ( $episode ) {
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return $episode['guid'];
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},
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$attributes['selectedEpisodes']
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);
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$player_args = array( 'guids' => $guids );
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} else {
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$player_args = array();
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}
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// Sanitize the URL.
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$attributes['url'] = esc_url_raw( $attributes['url'] );
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$player_data = ( new Jetpack_Podcast_Helper( $attributes['url'] ) )->get_player_data( $player_args );
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if ( is_wp_error( $player_data ) ) {
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return render_error( $player_data->get_error_message() );
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}
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return render_player( $player_data, $attributes );
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}
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/**
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* Renders the HTML for the Podcast player and tracklist.
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*
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* @param array $player_data The player data details.
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* @param array $attributes Array containing the Podcast Player block attributes.
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* @return string The HTML for the podcast player.
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*/
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function render_player( $player_data, $attributes ) {
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// If there are no tracks (it is possible) then display appropriate user facing error message.
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if ( empty( $player_data['tracks'] ) ) {
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return render_error( __( 'No tracks available to play.', 'jetpack' ) );
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}
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if ( is_wp_error( $player_data['tracks'] ) ) {
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return render_error( $player_data['tracks']->get_error_message() );
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}
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// Only use the amount of tracks requested.
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$player_data['tracks'] = array_slice(
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$player_data['tracks'],
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0,
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absint( $attributes['itemsToShow'] )
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);
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// Generate a unique id for the block instance.
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$instance_id = wp_unique_id( 'jetpack-podcast-player-block-' . get_the_ID() . '-' );
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$player_data['playerId'] = $instance_id;
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// Generate object to be used as props for PodcastPlayer.
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$player_props = array_merge(
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// Add all attributes.
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array( 'attributes' => $attributes ),
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// Add all player data.
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$player_data
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);
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$primary_colors = get_colors( 'primary', $attributes, 'color' );
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$secondary_colors = get_colors( 'secondary', $attributes, 'color' );
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$background_colors = get_colors( 'background', $attributes, 'background-color' );
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$player_classes_name = trim( "{$secondary_colors['class']} {$background_colors['class']}" );
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$player_inline_style = trim( "{$secondary_colors['style']} {$background_colors['style']}" );
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$player_inline_style .= get_css_vars( $attributes );
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$wrapper_attributes = \WP_Block_Supports::get_instance()->apply_block_supports();
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$block_classname = Blocks::classes( Blocks::get_block_feature( __DIR__ ), $attributes, array( 'is-default' ) );
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$is_amp = Blocks::is_amp_request();
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ob_start();
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?>
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<div class="<?php echo esc_attr( $block_classname ); ?>"<?php echo ! empty( $wrapper_attributes['style'] ) ? ' style="' . esc_attr( $wrapper_attributes['style'] ) . '"' : ''; ?> id="<?php echo esc_attr( $instance_id ); ?>">
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<section
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class="jetpack-podcast-player <?php echo esc_attr( $player_classes_name ); ?>"
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style="<?php echo esc_attr( $player_inline_style ); ?>"
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>
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<?php
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render(
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'podcast-header',
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array_merge(
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$player_props,
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array(
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'primary_colors' => $primary_colors,
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'player_id' => $player_data['playerId'],
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)
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)
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);
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?>
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<?php if ( count( $player_data['tracks'] ) > 1 ) : ?>
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<ol class="jetpack-podcast-player__tracks">
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<?php foreach ( $player_data['tracks'] as $track_index => $attachment ) : ?>
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<?php
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render(
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'playlist-track',
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array(
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'is_active' => 0 === $track_index,
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'attachment' => $attachment,
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'primary_colors' => $primary_colors,
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'secondary_colors' => $secondary_colors,
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)
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);
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?>
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<?php endforeach; ?>
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</ol>
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<?php endif; ?>
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</section>
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<?php if ( ! $is_amp ) : ?>
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<script type="application/json"><?php echo wp_json_encode( $player_props ); ?></script>
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<?php endif; ?>
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</div>
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<?php
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/**
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* Enqueue necessary scripts and styles.
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*/
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if ( ! $is_amp ) {
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wp_enqueue_style( 'wp-mediaelement' );
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}
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Jetpack_Gutenberg::load_assets_as_required( __DIR__, array( 'mediaelement' ) );
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return ob_get_clean();
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}
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/**
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* Given the color name, block attributes and the CSS property,
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* the function will return an array with the `class` and `style`
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* HTML attributes to be used straight in the markup.
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*
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* @example
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* $color = get_colors( 'secondary', $attributes, 'border-color'
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* => array( 'class' => 'has-secondary', 'style' => 'border-color: #333' )
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*
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* @param string $name Color attribute name, for instance `primary`, `secondary`, ...
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* @param array $attrs Block attributes.
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* @param string $property Color CSS property, fo instance `color`, `background-color`, ...
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* @return array Colors array.
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*/
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function get_colors( $name, $attrs, $property ) {
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$attr_color = "{$name}Color";
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$attr_custom = 'custom' . ucfirst( $attr_color );
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$color = isset( $attrs[ $attr_color ] ) ? $attrs[ $attr_color ] : null;
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$custom_color = isset( $attrs[ $attr_custom ] ) ? $attrs[ $attr_custom ] : null;
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$colors = array(
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'class' => '',
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'style' => '',
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);
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if ( $color || $custom_color ) {
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$colors['class'] .= "has-{$name}";
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if ( $color ) {
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$colors['class'] .= " has-{$color}-{$property}";
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} elseif ( $custom_color ) {
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$colors['style'] .= "{$property}: {$custom_color};";
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}
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}
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return $colors;
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}
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/**
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* It generates a string with CSS variables according to the
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* block colors, prefixing each one with `--jetpack-podcast-player'.
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*
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* @param array $attrs Podcast Block attributes object.
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* @return string CSS variables depending on block colors.
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*/
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function get_css_vars( $attrs ) {
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$colors_name = array( 'primary', 'secondary', 'background' );
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$inline_style = '';
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foreach ( $colors_name as $color ) {
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$hex_color = 'hex' . ucfirst( $color ) . 'Color';
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if ( ! empty( $attrs[ $hex_color ] ) ) {
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$inline_style .= " --jetpack-podcast-player-{$color}: {$attrs[ $hex_color ]};";
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}
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}
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return $inline_style;
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}
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/**
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* Render the given template in server-side.
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* Important note:
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* The $template_props array will be extracted.
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* This means it will create a var for each array item.
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* Keep it mind when using this param to pass
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* properties to the template.
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*
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* @html-template-var array $template_props
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*
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* @param string $name Template name, available in `./templates` folder.
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* @param array $template_props Template properties. Optional.
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* @param bool $print Render template. True as default.
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* @return string|null HTML markup or null.
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*/
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function render( $name, $template_props = array(), $print = true ) {
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if ( ! strpos( $name, '.php' ) ) {
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$name = $name . '.php';
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}
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$template_path = __DIR__ . '/templates/' . $name;
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if ( ! file_exists( $template_path ) ) {
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return '';
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}
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if ( $print ) {
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include $template_path;
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} else {
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ob_start();
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include $template_path;
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$markup = ob_get_contents();
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ob_end_clean();
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return $markup;
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}
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}
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